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COOK BALANCE

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EVM Contract

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0x461cace81b26128f6a4be799eb93f5cbee2d0b1c

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0xdf6e7e94ed8c6fe335c28a8ec50381e9172f7d30
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Compiler: 0.8.24+commit.e11b9ed9.Emscripten.clang · Contract: contracts/CookDEXV2FeeVault.sol:CookDEXV2FeeVault · Creation bytecode: matched

@layerzerolabs/lz-evm-protocol-v2/contracts/interfaces/ILayerZeroEndpointV2.sol

// SPDX-License-Identifier: MIT

pragma solidity >=0.8.0;

import { IMessageLibManager } from "./IMessageLibManager.sol";
import { IMessagingComposer } from "./IMessagingComposer.sol";
import { IMessagingChannel } from "./IMessagingChannel.sol";
import { IMessagingContext } from "./IMessagingContext.sol";

struct MessagingParams {
    uint32 dstEid;
    bytes32 receiver;
    bytes message;
    bytes options;
    bool payInLzToken;
}

struct MessagingReceipt {
    bytes32 guid;
    uint64 nonce;
    MessagingFee fee;
}

struct MessagingFee {
    uint256 nativeFee;
    uint256 lzTokenFee;
}

struct Origin {
    uint32 srcEid;
    bytes32 sender;
    uint64 nonce;
}

interface ILayerZeroEndpointV2 is IMessageLibManager, IMessagingComposer, IMessagingChannel, IMessagingContext {
    event PacketSent(bytes encodedPayload, bytes options, address sendLibrary);

    event PacketVerified(Origin origin, address receiver, bytes32 payloadHash);

    event PacketDelivered(Origin origin, address receiver);

    event LzReceiveAlert(
        address indexed receiver,
        address indexed executor,
        Origin origin,
        bytes32 guid,
        uint256 gas,
        uint256 value,
        bytes message,
        bytes extraData,
        bytes reason
    );

    event LzTokenSet(address token);

    event DelegateSet(address sender, address delegate);

    function quote(MessagingParams calldata _params, address _sender) external view returns (MessagingFee memory);

    function send(
        MessagingParams calldata _params,
        address _refundAddress
    ) external payable returns (MessagingReceipt memory);

    function verify(Origin calldata _origin, address _receiver, bytes32 _payloadHash) external;

    function verifiable(Origin calldata _origin, address _receiver) external view returns (bool);

    function initializable(Origin calldata _origin, address _receiver) external view returns (bool);

    function lzReceive(
        Origin calldata _origin,
        address _receiver,
        bytes32 _guid,
        bytes calldata _message,
        bytes calldata _extraData
    ) external payable;

    // oapp can burn messages partially by calling this function with its own business logic if messages are verified in order
    function clear(address _oapp, Origin calldata _origin, bytes32 _guid, bytes calldata _message) external;

    function setLzToken(address _lzToken) external;

    function lzToken() external view returns (address);

    function nativeToken() external view returns (address);

    function setDelegate(address _delegate) external;
}

@layerzerolabs/lz-evm-protocol-v2/contracts/interfaces/ILayerZeroReceiver.sol

// SPDX-License-Identifier: MIT

pragma solidity >=0.8.0;

import { Origin } from "./ILayerZeroEndpointV2.sol";

interface ILayerZeroReceiver {
    function allowInitializePath(Origin calldata _origin) external view returns (bool);

    function nextNonce(uint32 _eid, bytes32 _sender) external view returns (uint64);

    function lzReceive(
        Origin calldata _origin,
        bytes32 _guid,
        bytes calldata _message,
        address _executor,
        bytes calldata _extraData
    ) external payable;
}

@layerzerolabs/lz-evm-protocol-v2/contracts/interfaces/IMessageLib.sol

// SPDX-License-Identifier: MIT

pragma solidity >=0.8.0;

import { IERC165 } from "@openzeppelin/contracts/utils/introspection/IERC165.sol";

import { SetConfigParam } from "./IMessageLibManager.sol";

enum MessageLibType {
    Send,
    Receive,
    SendAndReceive
}

interface IMessageLib is IERC165 {
    function setConfig(address _oapp, SetConfigParam[] calldata _config) external;

    function getConfig(uint32 _eid, address _oapp, uint32 _configType) external view returns (bytes memory config);

    function isSupportedEid(uint32 _eid) external view returns (bool);

    // message libs of same major version are compatible
    function version() external view returns (uint64 major, uint8 minor, uint8 endpointVersion);

    function messageLibType() external view returns (MessageLibType);
}

@layerzerolabs/lz-evm-protocol-v2/contracts/interfaces/IMessageLibManager.sol

// SPDX-License-Identifier: MIT

pragma solidity >=0.8.0;

struct SetConfigParam {
    uint32 eid;
    uint32 configType;
    bytes config;
}

interface IMessageLibManager {
    struct Timeout {
        address lib;
        uint256 expiry;
    }

    event LibraryRegistered(address newLib);
    event DefaultSendLibrarySet(uint32 eid, address newLib);
    event DefaultReceiveLibrarySet(uint32 eid, address newLib);
    event DefaultReceiveLibraryTimeoutSet(uint32 eid, address oldLib, uint256 expiry);
    event SendLibrarySet(address sender, uint32 eid, address newLib);
    event ReceiveLibrarySet(address receiver, uint32 eid, address newLib);
    event ReceiveLibraryTimeoutSet(address receiver, uint32 eid, address oldLib, uint256 timeout);

    function registerLibrary(address _lib) external;

    function isRegisteredLibrary(address _lib) external view returns (bool);

    function getRegisteredLibraries() external view returns (address[] memory);

    function setDefaultSendLibrary(uint32 _eid, address _newLib) external;

    function defaultSendLibrary(uint32 _eid) external view returns (address);

    function setDefaultReceiveLibrary(uint32 _eid, address _newLib, uint256 _gracePeriod) external;

    function defaultReceiveLibrary(uint32 _eid) external view returns (address);

    function setDefaultReceiveLibraryTimeout(uint32 _eid, address _lib, uint256 _expiry) external;

    function defaultReceiveLibraryTimeout(uint32 _eid) external view returns (address lib, uint256 expiry);

    function isSupportedEid(uint32 _eid) external view returns (bool);

    function isValidReceiveLibrary(address _receiver, uint32 _eid, address _lib) external view returns (bool);

    /// ------------------- OApp interfaces -------------------
    function setSendLibrary(address _oapp, uint32 _eid, address _newLib) external;

    function getSendLibrary(address _sender, uint32 _eid) external view returns (address lib);

    function isDefaultSendLibrary(address _sender, uint32 _eid) external view returns (bool);

    function setReceiveLibrary(address _oapp, uint32 _eid, address _newLib, uint256 _gracePeriod) external;

    function getReceiveLibrary(address _receiver, uint32 _eid) external view returns (address lib, bool isDefault);

    function setReceiveLibraryTimeout(address _oapp, uint32 _eid, address _lib, uint256 _expiry) external;

    function receiveLibraryTimeout(address _receiver, uint32 _eid) external view returns (address lib, uint256 expiry);

    function setConfig(address _oapp, address _lib, SetConfigParam[] calldata _params) external;

    function getConfig(
        address _oapp,
        address _lib,
        uint32 _eid,
        uint32 _configType
    ) external view returns (bytes memory config);
}

@layerzerolabs/lz-evm-protocol-v2/contracts/interfaces/IMessagingChannel.sol

// SPDX-License-Identifier: MIT

pragma solidity >=0.8.0;

interface IMessagingChannel {
    event InboundNonceSkipped(uint32 srcEid, bytes32 sender, address receiver, uint64 nonce);
    event PacketNilified(uint32 srcEid, bytes32 sender, address receiver, uint64 nonce, bytes32 payloadHash);
    event PacketBurnt(uint32 srcEid, bytes32 sender, address receiver, uint64 nonce, bytes32 payloadHash);

    function eid() external view returns (uint32);

    // this is an emergency function if a message cannot be verified for some reasons
    // required to provide _nextNonce to avoid race condition
    function skip(address _oapp, uint32 _srcEid, bytes32 _sender, uint64 _nonce) external;

    function nilify(address _oapp, uint32 _srcEid, bytes32 _sender, uint64 _nonce, bytes32 _payloadHash) external;

    function burn(address _oapp, uint32 _srcEid, bytes32 _sender, uint64 _nonce, bytes32 _payloadHash) external;

    function nextGuid(address _sender, uint32 _dstEid, bytes32 _receiver) external view returns (bytes32);

    function inboundNonce(address _receiver, uint32 _srcEid, bytes32 _sender) external view returns (uint64);

    function outboundNonce(address _sender, uint32 _dstEid, bytes32 _receiver) external view returns (uint64);

    function inboundPayloadHash(
        address _receiver,
        uint32 _srcEid,
        bytes32 _sender,
        uint64 _nonce
    ) external view returns (bytes32);

    function lazyInboundNonce(address _receiver, uint32 _srcEid, bytes32 _sender) external view returns (uint64);
}

@layerzerolabs/lz-evm-protocol-v2/contracts/interfaces/IMessagingComposer.sol

// SPDX-License-Identifier: MIT

pragma solidity >=0.8.0;

interface IMessagingComposer {
    event ComposeSent(address from, address to, bytes32 guid, uint16 index, bytes message);
    event ComposeDelivered(address from, address to, bytes32 guid, uint16 index);
    event LzComposeAlert(
        address indexed from,
        address indexed to,
        address indexed executor,
        bytes32 guid,
        uint16 index,
        uint256 gas,
        uint256 value,
        bytes message,
        bytes extraData,
        bytes reason
    );

    function composeQueue(
        address _from,
        address _to,
        bytes32 _guid,
        uint16 _index
    ) external view returns (bytes32 messageHash);

    function sendCompose(address _to, bytes32 _guid, uint16 _index, bytes calldata _message) external;

    function lzCompose(
        address _from,
        address _to,
        bytes32 _guid,
        uint16 _index,
        bytes calldata _message,
        bytes calldata _extraData
    ) external payable;
}

@layerzerolabs/lz-evm-protocol-v2/contracts/interfaces/IMessagingContext.sol

// SPDX-License-Identifier: MIT

pragma solidity >=0.8.0;

interface IMessagingContext {
    function isSendingMessage() external view returns (bool);

    function getSendContext() external view returns (uint32 dstEid, address sender);
}

@layerzerolabs/lz-evm-protocol-v2/contracts/interfaces/ISendLib.sol

// SPDX-License-Identifier: MIT

pragma solidity >=0.8.0;

import { MessagingFee } from "./ILayerZeroEndpointV2.sol";
import { IMessageLib } from "./IMessageLib.sol";

struct Packet {
    uint64 nonce;
    uint32 srcEid;
    address sender;
    uint32 dstEid;
    bytes32 receiver;
    bytes32 guid;
    bytes message;
}

interface ISendLib is IMessageLib {
    function send(
        Packet calldata _packet,
        bytes calldata _options,
        bool _payInLzToken
    ) external returns (MessagingFee memory, bytes memory encodedPacket);

    function quote(
        Packet calldata _packet,
        bytes calldata _options,
        bool _payInLzToken
    ) external view returns (MessagingFee memory);

    function setTreasury(address _treasury) external;

    function withdrawFee(address _to, uint256 _amount) external;

    function withdrawLzTokenFee(address _lzToken, address _to, uint256 _amount) external;
}

@layerzerolabs/lz-evm-protocol-v2/contracts/libs/AddressCast.sol

// SPDX-License-Identifier: LZBL-1.2

pragma solidity ^0.8.20;

library AddressCast {
    error AddressCast_InvalidSizeForAddress();
    error AddressCast_InvalidAddress();

    function toBytes32(bytes calldata _addressBytes) internal pure returns (bytes32 result) {
        if (_addressBytes.length > 32) revert AddressCast_InvalidAddress();
        result = bytes32(_addressBytes);
        unchecked {
            uint256 offset = 32 - _addressBytes.length;
            result = result >> (offset * 8);
        }
    }

    function toBytes32(address _address) internal pure returns (bytes32 result) {
        result = bytes32(uint256(uint160(_address)));
    }

    function toBytes(bytes32 _addressBytes32, uint256 _size) internal pure returns (bytes memory result) {
        if (_size == 0 || _size > 32) revert AddressCast_InvalidSizeForAddress();
        result = new bytes(_size);
        unchecked {
            uint256 offset = 256 - _size * 8;
            assembly {
                mstore(add(result, 32), shl(offset, _addressBytes32))
            }
        }
    }

    function toAddress(bytes32 _addressBytes32) internal pure returns (address result) {
        result = address(uint160(uint256(_addressBytes32)));
    }

    function toAddress(bytes calldata _addressBytes) internal pure returns (address result) {
        if (_addressBytes.length != 20) revert AddressCast_InvalidAddress();
        result = address(bytes20(_addressBytes));
    }
}

@layerzerolabs/lz-evm-protocol-v2/contracts/messagelib/libs/PacketV1Codec.sol

// SPDX-License-Identifier: LZBL-1.2

pragma solidity ^0.8.20;

import { Packet } from "../../interfaces/ISendLib.sol";
import { AddressCast } from "../../libs/AddressCast.sol";

library PacketV1Codec {
    using AddressCast for address;
    using AddressCast for bytes32;

    uint8 internal constant PACKET_VERSION = 1;

    // header (version + nonce + path)
    // version
    uint256 private constant PACKET_VERSION_OFFSET = 0;
    //    nonce
    uint256 private constant NONCE_OFFSET = 1;
    //    path
    uint256 private constant SRC_EID_OFFSET = 9;
    uint256 private constant SENDER_OFFSET = 13;
    uint256 private constant DST_EID_OFFSET = 45;
    uint256 private constant RECEIVER_OFFSET = 49;
    // payload (guid + message)
    uint256 private constant GUID_OFFSET = 81; // keccak256(nonce + path)
    uint256 private constant MESSAGE_OFFSET = 113;

    function encode(Packet memory _packet) internal pure returns (bytes memory encodedPacket) {
        encodedPacket = abi.encodePacked(
            PACKET_VERSION,
            _packet.nonce,
            _packet.srcEid,
            _packet.sender.toBytes32(),
            _packet.dstEid,
            _packet.receiver,
            _packet.guid,
            _packet.message
        );
    }

    function encodePacketHeader(Packet memory _packet) internal pure returns (bytes memory) {
        return
            abi.encodePacked(
                PACKET_VERSION,
                _packet.nonce,
                _packet.srcEid,
                _packet.sender.toBytes32(),
                _packet.dstEid,
                _packet.receiver
            );
    }

    function encodePayload(Packet memory _packet) internal pure returns (bytes memory) {
        return abi.encodePacked(_packet.guid, _packet.message);
    }

    function header(bytes calldata _packet) internal pure returns (bytes calldata) {
        return _packet[0:GUID_OFFSET];
    }

    function version(bytes calldata _packet) internal pure returns (uint8) {
        return uint8(bytes1(_packet[PACKET_VERSION_OFFSET:NONCE_OFFSET]));
    }

    function nonce(bytes calldata _packet) internal pure returns (uint64) {
        return uint64(bytes8(_packet[NONCE_OFFSET:SRC_EID_OFFSET]));
    }

    function srcEid(bytes calldata _packet) internal pure returns (uint32) {
        return uint32(bytes4(_packet[SRC_EID_OFFSET:SENDER_OFFSET]));
    }

    function sender(bytes calldata _packet) internal pure returns (bytes32) {
        return bytes32(_packet[SENDER_OFFSET:DST_EID_OFFSET]);
    }

    function senderAddressB20(bytes calldata _packet) internal pure returns (address) {
        return sender(_packet).toAddress();
    }

    function dstEid(bytes calldata _packet) internal pure returns (uint32) {
        return uint32(bytes4(_packet[DST_EID_OFFSET:RECEIVER_OFFSET]));
    }

    function receiver(bytes calldata _packet) internal pure returns (bytes32) {
        return bytes32(_packet[RECEIVER_OFFSET:GUID_OFFSET]);
    }

    function receiverB20(bytes calldata _packet) internal pure returns (address) {
        return receiver(_packet).toAddress();
    }

    function guid(bytes calldata _packet) internal pure returns (bytes32) {
        return bytes32(_packet[GUID_OFFSET:MESSAGE_OFFSET]);
    }

    function message(bytes calldata _packet) internal pure returns (bytes calldata) {
        return bytes(_packet[MESSAGE_OFFSET:]);
    }

    function payload(bytes calldata _packet) internal pure returns (bytes calldata) {
        return bytes(_packet[GUID_OFFSET:]);
    }

    function payloadHash(bytes calldata _packet) internal pure returns (bytes32) {
        return keccak256(payload(_packet));
    }
}

@layerzerolabs/oapp-evm/contracts/oapp/interfaces/IOAppCore.sol

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.20;

import { ILayerZeroEndpointV2 } from "@layerzerolabs/lz-evm-protocol-v2/contracts/interfaces/ILayerZeroEndpointV2.sol";

/**
 * @title IOAppCore
 */
interface IOAppCore {
    // Custom error messages
    error OnlyPeer(uint32 eid, bytes32 sender);
    error NoPeer(uint32 eid);
    error InvalidEndpointCall();
    error InvalidDelegate();

    // Event emitted when a peer (OApp) is set for a corresponding endpoint
    event PeerSet(uint32 eid, bytes32 peer);

    /**
     * @notice Retrieves the OApp version information.
     * @return senderVersion The version of the OAppSender.sol contract.
     * @return receiverVersion The version of the OAppReceiver.sol contract.
     */
    function oAppVersion() external view returns (uint64 senderVersion, uint64 receiverVersion);

    /**
     * @notice Retrieves the LayerZero endpoint associated with the OApp.
     * @return iEndpoint The LayerZero endpoint as an interface.
     */
    function endpoint() external view returns (ILayerZeroEndpointV2 iEndpoint);

    /**
     * @notice Retrieves the peer (OApp) associated with a corresponding endpoint.
     * @param _eid The endpoint ID.
     * @return peer The peer address (OApp instance) associated with the corresponding endpoint.
     */
    function peers(uint32 _eid) external view returns (bytes32 peer);

    /**
     * @notice Sets the peer address (OApp instance) for a corresponding endpoint.
     * @param _eid The endpoint ID.
     * @param _peer The address of the peer to be associated with the corresponding endpoint.
     */
    function setPeer(uint32 _eid, bytes32 _peer) external;

    /**
     * @notice Sets the delegate address for the OApp Core.
     * @param _delegate The address of the delegate to be set.
     */
    function setDelegate(address _delegate) external;
}

@layerzerolabs/oapp-evm/contracts/oapp/interfaces/IOAppMsgInspector.sol

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.20;

/**
 * @title IOAppMsgInspector
 * @dev Interface for the OApp Message Inspector, allowing examination of message and options contents.
 */
interface IOAppMsgInspector {
    // Custom error message for inspection failure
    error InspectionFailed(bytes message, bytes options);

    /**
     * @notice Allows the inspector to examine LayerZero message contents and optionally throw a revert if invalid.
     * @param _message The message payload to be inspected.
     * @param _options Additional options or parameters for inspection.
     * @return valid A boolean indicating whether the inspection passed (true) or failed (false).
     *
     * @dev Optionally done as a revert, OR use the boolean provided to handle the failure.
     */
    function inspect(bytes calldata _message, bytes calldata _options) external view returns (bool valid);
}

@layerzerolabs/oapp-evm/contracts/oapp/interfaces/IOAppOptionsType3.sol

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.20;

/**
 * @dev Struct representing enforced option parameters.
 */
struct EnforcedOptionParam {
    uint32 eid; // Endpoint ID
    uint16 msgType; // Message Type
    bytes options; // Additional options
}

/**
 * @title IOAppOptionsType3
 * @dev Interface for the OApp with Type 3 Options, allowing the setting and combining of enforced options.
 */
interface IOAppOptionsType3 {
    // Custom error message for invalid options
    error InvalidOptions(bytes options);

    // Event emitted when enforced options are set
    event EnforcedOptionSet(EnforcedOptionParam[] _enforcedOptions);

    /**
     * @notice Sets enforced options for specific endpoint and message type combinations.
     * @param _enforcedOptions An array of EnforcedOptionParam structures specifying enforced options.
     */
    function setEnforcedOptions(EnforcedOptionParam[] calldata _enforcedOptions) external;

    /**
     * @notice Combines options for a given endpoint and message type.
     * @param _eid The endpoint ID.
     * @param _msgType The OApp message type.
     * @param _extraOptions Additional options passed by the caller.
     * @return options The combination of caller specified options AND enforced options.
     */
    function combineOptions(
        uint32 _eid,
        uint16 _msgType,
        bytes calldata _extraOptions
    ) external view returns (bytes memory options);
}

@layerzerolabs/oapp-evm/contracts/oapp/interfaces/IOAppReceiver.sol

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;

import { ILayerZeroReceiver, Origin } from "@layerzerolabs/lz-evm-protocol-v2/contracts/interfaces/ILayerZeroReceiver.sol";

interface IOAppReceiver is ILayerZeroReceiver {
    /**
     * @notice Indicates whether an address is an approved composeMsg sender to the Endpoint.
     * @param _origin The origin information containing the source endpoint and sender address.
     *  - srcEid: The source chain endpoint ID.
     *  - sender: The sender address on the src chain.
     *  - nonce: The nonce of the message.
     * @param _message The lzReceive payload.
     * @param _sender The sender address.
     * @return isSender Is a valid sender.
     *
     * @dev Applications can optionally choose to implement a separate composeMsg sender that is NOT the bridging layer.
     * @dev The default sender IS the OAppReceiver implementer.
     */
    function isComposeMsgSender(
        Origin calldata _origin,
        bytes calldata _message,
        address _sender
    ) external view returns (bool isSender);
}

@layerzerolabs/oapp-evm/contracts/oapp/libs/OAppOptionsType3.sol

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.20;

import { Ownable } from "@openzeppelin/contracts/access/Ownable.sol";
import { IOAppOptionsType3, EnforcedOptionParam } from "../interfaces/IOAppOptionsType3.sol";

/**
 * @title OAppOptionsType3
 * @dev Abstract contract implementing the IOAppOptionsType3 interface with type 3 options.
 */
abstract contract OAppOptionsType3 is IOAppOptionsType3, Ownable {
    uint16 internal constant OPTION_TYPE_3 = 3;

    // @dev The "msgType" should be defined in the child contract.
    mapping(uint32 eid => mapping(uint16 msgType => bytes enforcedOption)) public enforcedOptions;

    /**
     * @dev Sets the enforced options for specific endpoint and message type combinations.
     * @param _enforcedOptions An array of EnforcedOptionParam structures specifying enforced options.
     *
     * @dev Only the owner/admin of the OApp can call this function.
     * @dev Provides a way for the OApp to enforce things like paying for PreCrime, AND/OR minimum dst lzReceive gas amounts etc.
     * @dev These enforced options can vary as the potential options/execution on the remote may differ as per the msgType.
     * eg. Amount of lzReceive() gas necessary to deliver a lzCompose() message adds overhead you dont want to pay
     * if you are only making a standard LayerZero message ie. lzReceive() WITHOUT sendCompose().
     */
    function setEnforcedOptions(EnforcedOptionParam[] calldata _enforcedOptions) public virtual onlyOwner {
        _setEnforcedOptions(_enforcedOptions);
    }

    /**
     * @dev Sets the enforced options for specific endpoint and message type combinations.
     * @param _enforcedOptions An array of EnforcedOptionParam structures specifying enforced options.
     *
     * @dev Provides a way for the OApp to enforce things like paying for PreCrime, AND/OR minimum dst lzReceive gas amounts etc.
     * @dev These enforced options can vary as the potential options/execution on the remote may differ as per the msgType.
     * eg. Amount of lzReceive() gas necessary to deliver a lzCompose() message adds overhead you dont want to pay
     * if you are only making a standard LayerZero message ie. lzReceive() WITHOUT sendCompose().
     */
    function _setEnforcedOptions(EnforcedOptionParam[] memory _enforcedOptions) internal virtual {
        for (uint256 i = 0; i < _enforcedOptions.length; i++) {
            // @dev Enforced options are only available for optionType 3, as type 1 and 2 dont support combining.
            _assertOptionsType3(_enforcedOptions[i].options);
            enforcedOptions[_enforcedOptions[i].eid][_enforcedOptions[i].msgType] = _enforcedOptions[i].options;
        }

        emit EnforcedOptionSet(_enforcedOptions);
    }

    /**
     * @notice Combines options for a given endpoint and message type.
     * @param _eid The endpoint ID.
     * @param _msgType The OAPP message type.
     * @param _extraOptions Additional options passed by the caller.
     * @return options The combination of caller specified options AND enforced options.
     *
     * @dev If there is an enforced lzReceive option:
     * - {gasLimit: 200k, msg.value: 1 ether} AND a caller supplies a lzReceive option: {gasLimit: 100k, msg.value: 0.5 ether}
     * - The resulting options will be {gasLimit: 300k, msg.value: 1.5 ether} when the message is executed on the remote lzReceive() function.
     * @dev This presence of duplicated options is handled off-chain in the verifier/executor.
     */
    function combineOptions(
        uint32 _eid,
        uint16 _msgType,
        bytes calldata _extraOptions
    ) public view virtual returns (bytes memory) {
        bytes memory enforced = enforcedOptions[_eid][_msgType];

        // No enforced options, pass whatever the caller supplied, even if it's empty or legacy type 1/2 options.
        if (enforced.length == 0) return _extraOptions;

        // No caller options, return enforced
        if (_extraOptions.length == 0) return enforced;

        // @dev If caller provided _extraOptions, must be type 3 as its the ONLY type that can be combined.
        if (_extraOptions.length >= 2) {
            _assertOptionsType3(_extraOptions);
            // @dev Remove the first 2 bytes containing the type from the _extraOptions and combine with enforced.
            return bytes.concat(enforced, _extraOptions[2:]);
        }

        // No valid set of options was found.
        revert InvalidOptions(_extraOptions);
    }

    /**
     * @dev Internal function to assert that options are of type 3.
     * @param _options The options to be checked.
     */
    function _assertOptionsType3(bytes memory _options) internal pure virtual {
        uint16 optionsType;
        assembly {
            optionsType := mload(add(_options, 2))
        }
        if (optionsType != OPTION_TYPE_3) revert InvalidOptions(_options);
    }
}

@layerzerolabs/oapp-evm/contracts/oapp/OApp.sol

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.20;

// @dev Import the 'MessagingFee' and 'MessagingReceipt' so it's exposed to OApp implementers
// solhint-disable-next-line no-unused-import
import { OAppSender, MessagingFee, MessagingReceipt } from "./OAppSender.sol";
// @dev Import the 'Origin' so it's exposed to OApp implementers
// solhint-disable-next-line no-unused-import
import { OAppReceiver, Origin } from "./OAppReceiver.sol";
import { OAppCore } from "./OAppCore.sol";

/**
 * @title OApp
 * @dev Abstract contract serving as the base for OApp implementation, combining OAppSender and OAppReceiver functionality.
 */
abstract contract OApp is OAppSender, OAppReceiver {
    /**
     * @dev Constructor to initialize the OApp with the provided endpoint and owner.
     * @param _endpoint The address of the LOCAL LayerZero endpoint.
     * @param _delegate The delegate capable of making OApp configurations inside of the endpoint.
     */
    constructor(address _endpoint, address _delegate) OAppCore(_endpoint, _delegate) {}

    /**
     * @notice Retrieves the OApp version information.
     * @return senderVersion The version of the OAppSender.sol implementation.
     * @return receiverVersion The version of the OAppReceiver.sol implementation.
     */
    function oAppVersion()
        public
        pure
        virtual
        override(OAppSender, OAppReceiver)
        returns (uint64 senderVersion, uint64 receiverVersion)
    {
        return (SENDER_VERSION, RECEIVER_VERSION);
    }
}

@layerzerolabs/oapp-evm/contracts/oapp/OAppCore.sol

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.20;

import { Ownable } from "@openzeppelin/contracts/access/Ownable.sol";
import { IOAppCore, ILayerZeroEndpointV2 } from "./interfaces/IOAppCore.sol";

/**
 * @title OAppCore
 * @dev Abstract contract implementing the IOAppCore interface with basic OApp configurations.
 */
abstract contract OAppCore is IOAppCore, Ownable {
    // The LayerZero endpoint associated with the given OApp
    ILayerZeroEndpointV2 public immutable endpoint;

    // Mapping to store peers associated with corresponding endpoints
    mapping(uint32 eid => bytes32 peer) public peers;

    /**
     * @dev Constructor to initialize the OAppCore with the provided endpoint and delegate.
     * @param _endpoint The address of the LOCAL Layer Zero endpoint.
     * @param _delegate The delegate capable of making OApp configurations inside of the endpoint.
     *
     * @dev The delegate typically should be set as the owner of the contract.
     */
    constructor(address _endpoint, address _delegate) {
        endpoint = ILayerZeroEndpointV2(_endpoint);

        if (_delegate == address(0)) revert InvalidDelegate();
        endpoint.setDelegate(_delegate);
    }

    /**
     * @notice Sets the peer address (OApp instance) for a corresponding endpoint.
     * @param _eid The endpoint ID.
     * @param _peer The address of the peer to be associated with the corresponding endpoint.
     *
     * @dev Only the owner/admin of the OApp can call this function.
     * @dev Indicates that the peer is trusted to send LayerZero messages to this OApp.
     * @dev Set this to bytes32(0) to remove the peer address.
     * @dev Peer is a bytes32 to accommodate non-evm chains.
     */
    function setPeer(uint32 _eid, bytes32 _peer) public virtual onlyOwner {
        _setPeer(_eid, _peer);
    }

    /**
     * @notice Sets the peer address (OApp instance) for a corresponding endpoint.
     * @param _eid The endpoint ID.
     * @param _peer The address of the peer to be associated with the corresponding endpoint.
     *
     * @dev Indicates that the peer is trusted to send LayerZero messages to this OApp.
     * @dev Set this to bytes32(0) to remove the peer address.
     * @dev Peer is a bytes32 to accommodate non-evm chains.
     */
    function _setPeer(uint32 _eid, bytes32 _peer) internal virtual {
        peers[_eid] = _peer;
        emit PeerSet(_eid, _peer);
    }

    /**
     * @notice Internal function to get the peer address associated with a specific endpoint; reverts if NOT set.
     * ie. the peer is set to bytes32(0).
     * @param _eid The endpoint ID.
     * @return peer The address of the peer associated with the specified endpoint.
     */
    function _getPeerOrRevert(uint32 _eid) internal view virtual returns (bytes32) {
        bytes32 peer = peers[_eid];
        if (peer == bytes32(0)) revert NoPeer(_eid);
        return peer;
    }

    /**
     * @notice Sets the delegate address for the OApp.
     * @param _delegate The address of the delegate to be set.
     *
     * @dev Only the owner/admin of the OApp can call this function.
     * @dev Provides the ability for a delegate to set configs, on behalf of the OApp, directly on the Endpoint contract.
     */
    function setDelegate(address _delegate) public onlyOwner {
        endpoint.setDelegate(_delegate);
    }
}

@layerzerolabs/oapp-evm/contracts/oapp/OAppReceiver.sol

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.20;

import { IOAppReceiver, Origin } from "./interfaces/IOAppReceiver.sol";
import { OAppCore } from "./OAppCore.sol";

/**
 * @title OAppReceiver
 * @dev Abstract contract implementing the ILayerZeroReceiver interface and extending OAppCore for OApp receivers.
 */
abstract contract OAppReceiver is IOAppReceiver, OAppCore {
    // Custom error message for when the caller is not the registered endpoint/
    error OnlyEndpoint(address addr);

    // @dev The version of the OAppReceiver implementation.
    // @dev Version is bumped when changes are made to this contract.
    uint64 internal constant RECEIVER_VERSION = 2;

    /**
     * @notice Retrieves the OApp version information.
     * @return senderVersion The version of the OAppSender.sol contract.
     * @return receiverVersion The version of the OAppReceiver.sol contract.
     *
     * @dev Providing 0 as the default for OAppSender version. Indicates that the OAppSender is not implemented.
     * ie. this is a RECEIVE only OApp.
     * @dev If the OApp uses both OAppSender and OAppReceiver, then this needs to be override returning the correct versions.
     */
    function oAppVersion() public view virtual returns (uint64 senderVersion, uint64 receiverVersion) {
        return (0, RECEIVER_VERSION);
    }

    /**
     * @notice Indicates whether an address is an approved composeMsg sender to the Endpoint.
     * @dev _origin The origin information containing the source endpoint and sender address.
     *  - srcEid: The source chain endpoint ID.
     *  - sender: The sender address on the src chain.
     *  - nonce: The nonce of the message.
     * @dev _message The lzReceive payload.
     * @param _sender The sender address.
     * @return isSender Is a valid sender.
     *
     * @dev Applications can optionally choose to implement separate composeMsg senders that are NOT the bridging layer.
     * @dev The default sender IS the OAppReceiver implementer.
     */
    function isComposeMsgSender(
        Origin calldata /*_origin*/,
        bytes calldata /*_message*/,
        address _sender
    ) public view virtual returns (bool) {
        return _sender == address(this);
    }

    /**
     * @notice Checks if the path initialization is allowed based on the provided origin.
     * @param origin The origin information containing the source endpoint and sender address.
     * @return Whether the path has been initialized.
     *
     * @dev This indicates to the endpoint that the OApp has enabled msgs for this particular path to be received.
     * @dev This defaults to assuming if a peer has been set, its initialized.
     * Can be overridden by the OApp if there is other logic to determine this.
     */
    function allowInitializePath(Origin calldata origin) public view virtual returns (bool) {
        return peers[origin.srcEid] == origin.sender;
    }

    /**
     * @notice Retrieves the next nonce for a given source endpoint and sender address.
     * @dev _srcEid The source endpoint ID.
     * @dev _sender The sender address.
     * @return nonce The next nonce.
     *
     * @dev The path nonce starts from 1. If 0 is returned it means that there is NO nonce ordered enforcement.
     * @dev Is required by the off-chain executor to determine the OApp expects msg execution is ordered.
     * @dev This is also enforced by the OApp.
     * @dev By default this is NOT enabled. ie. nextNonce is hardcoded to return 0.
     */
    function nextNonce(uint32 /*_srcEid*/, bytes32 /*_sender*/) public view virtual returns (uint64 nonce) {
        return 0;
    }

    /**
     * @dev Entry point for receiving messages or packets from the endpoint.
     * @param _origin The origin information containing the source endpoint and sender address.
     *  - srcEid: The source chain endpoint ID.
     *  - sender: The sender address on the src chain.
     *  - nonce: The nonce of the message.
     * @param _guid The unique identifier for the received LayerZero message.
     * @param _message The payload of the received message.
     * @param _executor The address of the executor for the received message.
     * @param _extraData Additional arbitrary data provided by the corresponding executor.
     *
     * @dev Entry point for receiving msg/packet from the LayerZero endpoint.
     */
    function lzReceive(
        Origin calldata _origin,
        bytes32 _guid,
        bytes calldata _message,
        address _executor,
        bytes calldata _extraData
    ) public payable virtual {
        // Ensures that only the endpoint can attempt to lzReceive() messages to this OApp.
        if (address(endpoint) != msg.sender) revert OnlyEndpoint(msg.sender);

        // Ensure that the sender matches the expected peer for the source endpoint.
        if (_getPeerOrRevert(_origin.srcEid) != _origin.sender) revert OnlyPeer(_origin.srcEid, _origin.sender);

        // Call the internal OApp implementation of lzReceive.
        _lzReceive(_origin, _guid, _message, _executor, _extraData);
    }

    /**
     * @dev Internal function to implement lzReceive logic without needing to copy the basic parameter validation.
     */
    function _lzReceive(
        Origin calldata _origin,
        bytes32 _guid,
        bytes calldata _message,
        address _executor,
        bytes calldata _extraData
    ) internal virtual;
}

@layerzerolabs/oapp-evm/contracts/oapp/OAppSender.sol

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.20;

import { SafeERC20, IERC20 } from "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
import { MessagingParams, MessagingFee, MessagingReceipt } from "@layerzerolabs/lz-evm-protocol-v2/contracts/interfaces/ILayerZeroEndpointV2.sol";
import { OAppCore } from "./OAppCore.sol";

/**
 * @title OAppSender
 * @dev Abstract contract implementing the OAppSender functionality for sending messages to a LayerZero endpoint.
 */
abstract contract OAppSender is OAppCore {
    using SafeERC20 for IERC20;

    // Custom error messages
    error NotEnoughNative(uint256 msgValue);
    error LzTokenUnavailable();

    // @dev The version of the OAppSender implementation.
    // @dev Version is bumped when changes are made to this contract.
    uint64 internal constant SENDER_VERSION = 1;

    /**
     * @notice Retrieves the OApp version information.
     * @return senderVersion The version of the OAppSender.sol contract.
     * @return receiverVersion The version of the OAppReceiver.sol contract.
     *
     * @dev Providing 0 as the default for OAppReceiver version. Indicates that the OAppReceiver is not implemented.
     * ie. this is a SEND only OApp.
     * @dev If the OApp uses both OAppSender and OAppReceiver, then this needs to be override returning the correct versions
     */
    function oAppVersion() public view virtual returns (uint64 senderVersion, uint64 receiverVersion) {
        return (SENDER_VERSION, 0);
    }

    /**
     * @dev Internal function to interact with the LayerZero EndpointV2.quote() for fee calculation.
     * @param _dstEid The destination endpoint ID.
     * @param _message The message payload.
     * @param _options Additional options for the message.
     * @param _payInLzToken Flag indicating whether to pay the fee in LZ tokens.
     * @return fee The calculated MessagingFee for the message.
     *      - nativeFee: The native fee for the message.
     *      - lzTokenFee: The LZ token fee for the message.
     */
    function _quote(
        uint32 _dstEid,
        bytes memory _message,
        bytes memory _options,
        bool _payInLzToken
    ) internal view virtual returns (MessagingFee memory fee) {
        return
            endpoint.quote(
                MessagingParams(_dstEid, _getPeerOrRevert(_dstEid), _message, _options, _payInLzToken),
                address(this)
            );
    }

    /**
     * @dev Internal function to interact with the LayerZero EndpointV2.send() for sending a message.
     * @param _dstEid The destination endpoint ID.
     * @param _message The message payload.
     * @param _options Additional options for the message.
     * @param _fee The calculated LayerZero fee for the message.
     *      - nativeFee: The native fee.
     *      - lzTokenFee: The lzToken fee.
     * @param _refundAddress The address to receive any excess fee values sent to the endpoint.
     * @return receipt The receipt for the sent message.
     *      - guid: The unique identifier for the sent message.
     *      - nonce: The nonce of the sent message.
     *      - fee: The LayerZero fee incurred for the message.
     */
    function _lzSend(
        uint32 _dstEid,
        bytes memory _message,
        bytes memory _options,
        MessagingFee memory _fee,
        address _refundAddress
    ) internal virtual returns (MessagingReceipt memory receipt) {
        // @dev Push corresponding fees to the endpoint, any excess is sent back to the _refundAddress from the endpoint.
        uint256 messageValue = _payNative(_fee.nativeFee);
        if (_fee.lzTokenFee > 0) _payLzToken(_fee.lzTokenFee);

        return
            // solhint-disable-next-line check-send-result
            endpoint.send{ value: messageValue }(
                MessagingParams(_dstEid, _getPeerOrRevert(_dstEid), _message, _options, _fee.lzTokenFee > 0),
                _refundAddress
            );
    }

    /**
     * @dev Internal function to pay the native fee associated with the message.
     * @param _nativeFee The native fee to be paid.
     * @return nativeFee The amount of native currency paid.
     *
     * @dev If the OApp needs to initiate MULTIPLE LayerZero messages in a single transaction,
     * this will need to be overridden because msg.value would contain multiple lzFees.
     * @dev Should be overridden in the event the LayerZero endpoint requires a different native currency.
     * @dev Some EVMs use an ERC20 as a method for paying transactions/gasFees.
     * @dev The endpoint is EITHER/OR, ie. it will NOT support both types of native payment at a time.
     */
    function _payNative(uint256 _nativeFee) internal virtual returns (uint256 nativeFee) {
        if (msg.value != _nativeFee) revert NotEnoughNative(msg.value);
        return _nativeFee;
    }

    /**
     * @dev Internal function to pay the LZ token fee associated with the message.
     * @param _lzTokenFee The LZ token fee to be paid.
     *
     * @dev If the caller is trying to pay in the specified lzToken, then the lzTokenFee is passed to the endpoint.
     * @dev Any excess sent, is passed back to the specified _refundAddress in the _lzSend().
     */
    function _payLzToken(uint256 _lzTokenFee) internal virtual {
        // @dev Cannot cache the token because it is not immutable in the endpoint.
        address lzToken = endpoint.lzToken();
        if (lzToken == address(0)) revert LzTokenUnavailable();

        // Pay LZ token fee by sending tokens to the endpoint.
        IERC20(lzToken).safeTransferFrom(msg.sender, address(endpoint), _lzTokenFee);
    }
}

@layerzerolabs/oapp-evm/contracts/precrime/interfaces/IOAppPreCrimeSimulator.sol

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.20;

// @dev Import the Origin so it's exposed to OAppPreCrimeSimulator implementers.
// solhint-disable-next-line no-unused-import
import { InboundPacket, Origin } from "../libs/Packet.sol";

/**
 * @title IOAppPreCrimeSimulator Interface
 * @dev Interface for the preCrime simulation functionality in an OApp.
 */
interface IOAppPreCrimeSimulator {
    // @dev simulation result used in PreCrime implementation
    error SimulationResult(bytes result);
    error OnlySelf();

    /**
     * @dev Emitted when the preCrime contract address is set.
     * @param preCrimeAddress The address of the preCrime contract.
     */
    event PreCrimeSet(address preCrimeAddress);

    /**
     * @dev Retrieves the address of the preCrime contract implementation.
     * @return The address of the preCrime contract.
     */
    function preCrime() external view returns (address);

    /**
     * @dev Retrieves the address of the OApp contract.
     * @return The address of the OApp contract.
     */
    function oApp() external view returns (address);

    /**
     * @dev Sets the preCrime contract address.
     * @param _preCrime The address of the preCrime contract.
     */
    function setPreCrime(address _preCrime) external;

    /**
     * @dev Mocks receiving a packet, then reverts with a series of data to infer the state/result.
     * @param _packets An array of LayerZero InboundPacket objects representing received packets.
     */
    function lzReceiveAndRevert(InboundPacket[] calldata _packets) external payable;

    /**
     * @dev checks if the specified peer is considered 'trusted' by the OApp.
     * @param _eid The endpoint Id to check.
     * @param _peer The peer to check.
     * @return Whether the peer passed is considered 'trusted' by the OApp.
     */
    function isPeer(uint32 _eid, bytes32 _peer) external view returns (bool);
}

@layerzerolabs/oapp-evm/contracts/precrime/interfaces/IPreCrime.sol

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.20;
struct PreCrimePeer {
    uint32 eid;
    bytes32 preCrime;
    bytes32 oApp;
}

// TODO not done yet
interface IPreCrime {
    error OnlyOffChain();

    // for simulate()
    error PacketOversize(uint256 max, uint256 actual);
    error PacketUnsorted();
    error SimulationFailed(bytes reason);

    // for preCrime()
    error SimulationResultNotFound(uint32 eid);
    error InvalidSimulationResult(uint32 eid, bytes reason);
    error CrimeFound(bytes crime);

    function getConfig(bytes[] calldata _packets, uint256[] calldata _packetMsgValues) external returns (bytes memory);

    function simulate(
        bytes[] calldata _packets,
        uint256[] calldata _packetMsgValues
    ) external payable returns (bytes memory);

    function buildSimulationResult() external view returns (bytes memory);

    function preCrime(
        bytes[] calldata _packets,
        uint256[] calldata _packetMsgValues,
        bytes[] calldata _simulations
    ) external;

    function version() external view returns (uint64 major, uint8 minor);
}

@layerzerolabs/oapp-evm/contracts/precrime/libs/Packet.sol

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.20;

import { Origin } from "@layerzerolabs/lz-evm-protocol-v2/contracts/interfaces/ILayerZeroEndpointV2.sol";
import { PacketV1Codec } from "@layerzerolabs/lz-evm-protocol-v2/contracts/messagelib/libs/PacketV1Codec.sol";

/**
 * @title InboundPacket
 * @dev Structure representing an inbound packet received by the contract.
 */
struct InboundPacket {
    Origin origin; // Origin information of the packet.
    uint32 dstEid; // Destination endpointId of the packet.
    address receiver; // Receiver address for the packet.
    bytes32 guid; // Unique identifier of the packet.
    uint256 value; // msg.value of the packet.
    address executor; // Executor address for the packet.
    bytes message; // Message payload of the packet.
    bytes extraData; // Additional arbitrary data for the packet.
}

/**
 * @title PacketDecoder
 * @dev Library for decoding LayerZero packets.
 */
library PacketDecoder {
    using PacketV1Codec for bytes;

    /**
     * @dev Decode an inbound packet from the given packet data.
     * @param _packet The packet data to decode.
     * @return packet An InboundPacket struct representing the decoded packet.
     */
    function decode(bytes calldata _packet) internal pure returns (InboundPacket memory packet) {
        packet.origin = Origin(_packet.srcEid(), _packet.sender(), _packet.nonce());
        packet.dstEid = _packet.dstEid();
        packet.receiver = _packet.receiverB20();
        packet.guid = _packet.guid();
        packet.message = _packet.message();
    }

    /**
     * @dev Decode multiple inbound packets from the given packet data and associated message values.
     * @param _packets An array of packet data to decode.
     * @param _packetMsgValues An array of associated message values for each packet.
     * @return packets An array of InboundPacket structs representing the decoded packets.
     */
    function decode(
        bytes[] calldata _packets,
        uint256[] memory _packetMsgValues
    ) internal pure returns (InboundPacket[] memory packets) {
        packets = new InboundPacket[](_packets.length);
        for (uint256 i = 0; i < _packets.length; i++) {
            bytes calldata packet = _packets[i];
            packets[i] = PacketDecoder.decode(packet);
            // @dev Allows the verifier to specify the msg.value that gets passed in lzReceive.
            packets[i].value = _packetMsgValues[i];
        }
    }
}

@layerzerolabs/oapp-evm/contracts/precrime/OAppPreCrimeSimulator.sol

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.20;

import { Ownable } from "@openzeppelin/contracts/access/Ownable.sol";
import { IPreCrime } from "./interfaces/IPreCrime.sol";
import { IOAppPreCrimeSimulator, InboundPacket, Origin } from "./interfaces/IOAppPreCrimeSimulator.sol";

/**
 * @title OAppPreCrimeSimulator
 * @dev Abstract contract serving as the base for preCrime simulation functionality in an OApp.
 */
abstract contract OAppPreCrimeSimulator is IOAppPreCrimeSimulator, Ownable {
    // The address of the preCrime implementation.
    address public preCrime;

    /**
     * @dev Retrieves the address of the OApp contract.
     * @return The address of the OApp contract.
     *
     * @dev The simulator contract is the base contract for the OApp by default.
     * @dev If the simulator is a separate contract, override this function.
     */
    function oApp() external view virtual returns (address) {
        return address(this);
    }

    /**
     * @dev Sets the preCrime contract address.
     * @param _preCrime The address of the preCrime contract.
     */
    function setPreCrime(address _preCrime) public virtual onlyOwner {
        preCrime = _preCrime;
        emit PreCrimeSet(_preCrime);
    }

    /**
     * @dev Interface for pre-crime simulations. Always reverts at the end with the simulation results.
     * @param _packets An array of InboundPacket objects representing received packets to be delivered.
     *
     * @dev WARNING: MUST revert at the end with the simulation results.
     * @dev Gives the preCrime implementation the ability to mock sending packets to the lzReceive function,
     * WITHOUT actually executing them.
     */
    function lzReceiveAndRevert(InboundPacket[] calldata _packets) public payable virtual {
        for (uint256 i = 0; i < _packets.length; i++) {
            InboundPacket calldata packet = _packets[i];

            // Ignore packets that are not from trusted peers.
            if (!isPeer(packet.origin.srcEid, packet.origin.sender)) continue;

            // @dev Because a verifier is calling this function, it doesnt have access to executor params:
            //  - address _executor
            //  - bytes calldata _extraData
            // preCrime will NOT work for OApps that rely on these two parameters inside of their _lzReceive().
            // They are instead stubbed to default values, address(0) and bytes("")
            // @dev Calling this.lzReceiveSimulate removes ability for assembly return 0 callstack exit,
            // which would cause the revert to be ignored.
            this.lzReceiveSimulate{ value: packet.value }(
                packet.origin,
                packet.guid,
                packet.message,
                packet.executor,
                packet.extraData
            );
        }

        // @dev Revert with the simulation results. msg.sender must implement IPreCrime.buildSimulationResult().
        revert SimulationResult(IPreCrime(msg.sender).buildSimulationResult());
    }

    /**
     * @dev Is effectively an internal function because msg.sender must be address(this).
     * Allows resetting the call stack for 'internal' calls.
     * @param _origin The origin information containing the source endpoint and sender address.
     *  - srcEid: The source chain endpoint ID.
     *  - sender: The sender address on the src chain.
     *  - nonce: The nonce of the message.
     * @param _guid The unique identifier of the packet.
     * @param _message The message payload of the packet.
     * @param _executor The executor address for the packet.
     * @param _extraData Additional data for the packet.
     */
    function lzReceiveSimulate(
        Origin calldata _origin,
        bytes32 _guid,
        bytes calldata _message,
        address _executor,
        bytes calldata _extraData
    ) external payable virtual {
        // @dev Ensure ONLY can be called 'internally'.
        if (msg.sender != address(this)) revert OnlySelf();
        _lzReceiveSimulate(_origin, _guid, _message, _executor, _extraData);
    }

    /**
     * @dev Internal function to handle the OAppPreCrimeSimulator simulated receive.
     * @param _origin The origin information.
     *  - srcEid: The source chain endpoint ID.
     *  - sender: The sender address from the src chain.
     *  - nonce: The nonce of the LayerZero message.
     * @param _guid The GUID of the LayerZero message.
     * @param _message The LayerZero message.
     * @param _executor The address of the off-chain executor.
     * @param _extraData Arbitrary data passed by the msg executor.
     *
     * @dev Enables the preCrime simulator to mock sending lzReceive() messages,
     * routes the msg down from the OAppPreCrimeSimulator, and back up to the OAppReceiver.
     */
    function _lzReceiveSimulate(
        Origin calldata _origin,
        bytes32 _guid,
        bytes calldata _message,
        address _executor,
        bytes calldata _extraData
    ) internal virtual;

    /**
     * @dev checks if the specified peer is considered 'trusted' by the OApp.
     * @param _eid The endpoint Id to check.
     * @param _peer The peer to check.
     * @return Whether the peer passed is considered 'trusted' by the OApp.
     */
    function isPeer(uint32 _eid, bytes32 _peer) public view virtual returns (bool);
}

@layerzerolabs/oft-evm/contracts/interfaces/IOFT.sol

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.20;

import { MessagingReceipt, MessagingFee } from "@layerzerolabs/oapp-evm/contracts/oapp/OAppSender.sol";

/**
 * @dev Struct representing token parameters for the OFT send() operation.
 */
struct SendParam {
    uint32 dstEid; // Destination endpoint ID.
    bytes32 to; // Recipient address.
    uint256 amountLD; // Amount to send in local decimals.
    uint256 minAmountLD; // Minimum amount to send in local decimals.
    bytes extraOptions; // Additional options supplied by the caller to be used in the LayerZero message.
    bytes composeMsg; // The composed message for the send() operation.
    bytes oftCmd; // The OFT command to be executed, unused in default OFT implementations.
}

/**
 * @dev Struct representing OFT limit information.
 * @dev These amounts can change dynamically and are up the specific oft implementation.
 */
struct OFTLimit {
    uint256 minAmountLD; // Minimum amount in local decimals that can be sent to the recipient.
    uint256 maxAmountLD; // Maximum amount in local decimals that can be sent to the recipient.
}

/**
 * @dev Struct representing OFT receipt information.
 */
struct OFTReceipt {
    uint256 amountSentLD; // Amount of tokens ACTUALLY debited from the sender in local decimals.
    // @dev In non-default implementations, the amountReceivedLD COULD differ from this value.
    uint256 amountReceivedLD; // Amount of tokens to be received on the remote side.
}

/**
 * @dev Struct representing OFT fee details.
 * @dev Future proof mechanism to provide a standardized way to communicate fees to things like a UI.
 */
struct OFTFeeDetail {
    int256 feeAmountLD; // Amount of the fee in local decimals.
    string description; // Description of the fee.
}

/**
 * @title IOFT
 * @dev Interface for the OftChain (OFT) token.
 * @dev Does not inherit ERC20 to accommodate usage by OFTAdapter as well.
 * @dev This specific interface ID is '0x02e49c2c'.
 */
interface IOFT {
    // Custom error messages
    error InvalidLocalDecimals();
    error SlippageExceeded(uint256 amountLD, uint256 minAmountLD);
    error AmountSDOverflowed(uint256 amountSD);

    // Events
    event OFTSent(
        bytes32 indexed guid, // GUID of the OFT message.
        uint32 dstEid, // Destination Endpoint ID.
        address indexed fromAddress, // Address of the sender on the src chain.
        uint256 amountSentLD, // Amount of tokens sent in local decimals.
        uint256 amountReceivedLD // Amount of tokens received in local decimals.
    );
    event OFTReceived(
        bytes32 indexed guid, // GUID of the OFT message.
        uint32 srcEid, // Source Endpoint ID.
        address indexed toAddress, // Address of the recipient on the dst chain.
        uint256 amountReceivedLD // Amount of tokens received in local decimals.
    );

    /**
     * @notice Retrieves interfaceID and the version of the OFT.
     * @return interfaceId The interface ID.
     * @return version The version.
     *
     * @dev interfaceId: This specific interface ID is '0x02e49c2c'.
     * @dev version: Indicates a cross-chain compatible msg encoding with other OFTs.
     * @dev If a new feature is added to the OFT cross-chain msg encoding, the version will be incremented.
     * ie. localOFT version(x,1) CAN send messages to remoteOFT version(x,1)
     */
    function oftVersion() external view returns (bytes4 interfaceId, uint64 version);

    /**
     * @notice Retrieves the address of the token associated with the OFT.
     * @return token The address of the ERC20 token implementation.
     */
    function token() external view returns (address);

    /**
     * @notice Indicates whether the OFT contract requires approval of the 'token()' to send.
     * @return requiresApproval Needs approval of the underlying token implementation.
     *
     * @dev Allows things like wallet implementers to determine integration requirements,
     * without understanding the underlying token implementation.
     */
    function approvalRequired() external view returns (bool);

    /**
     * @notice Retrieves the shared decimals of the OFT.
     * @return sharedDecimals The shared decimals of the OFT.
     */
    function sharedDecimals() external view returns (uint8);

    /**
     * @notice Provides the fee breakdown and settings data for an OFT. Unused in the default implementation.
     * @param _sendParam The parameters for the send operation.
     * @return limit The OFT limit information.
     * @return oftFeeDetails The details of OFT fees.
     * @return receipt The OFT receipt information.
     */
    function quoteOFT(
        SendParam calldata _sendParam
    ) external view returns (OFTLimit memory, OFTFeeDetail[] memory oftFeeDetails, OFTReceipt memory);

    /**
     * @notice Provides a quote for the send() operation.
     * @param _sendParam The parameters for the send() operation.
     * @param _payInLzToken Flag indicating whether the caller is paying in the LZ token.
     * @return fee The calculated LayerZero messaging fee from the send() operation.
     *
     * @dev MessagingFee: LayerZero msg fee
     *  - nativeFee: The native fee.
     *  - lzTokenFee: The lzToken fee.
     */
    function quoteSend(SendParam calldata _sendParam, bool _payInLzToken) external view returns (MessagingFee memory);

    /**
     * @notice Executes the send() operation.
     * @param _sendParam The parameters for the send operation.
     * @param _fee The fee information supplied by the caller.
     *      - nativeFee: The native fee.
     *      - lzTokenFee: The lzToken fee.
     * @param _refundAddress The address to receive any excess funds from fees etc. on the src.
     * @return receipt The LayerZero messaging receipt from the send() operation.
     * @return oftReceipt The OFT receipt information.
     *
     * @dev MessagingReceipt: LayerZero msg receipt
     *  - guid: The unique identifier for the sent message.
     *  - nonce: The nonce of the sent message.
     *  - fee: The LayerZero fee incurred for the message.
     */
    function send(
        SendParam calldata _sendParam,
        MessagingFee calldata _fee,
        address _refundAddress
    ) external payable returns (MessagingReceipt memory, OFTReceipt memory);
}

@layerzerolabs/oft-evm/contracts/libs/OFTComposeMsgCodec.sol

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.20;

library OFTComposeMsgCodec {
    // Offset constants for decoding composed messages
    uint8 private constant NONCE_OFFSET = 8;
    uint8 private constant SRC_EID_OFFSET = 12;
    uint8 private constant AMOUNT_LD_OFFSET = 44;
    uint8 private constant COMPOSE_FROM_OFFSET = 76;

    /**
     * @dev Encodes a OFT composed message.
     * @param _nonce The nonce value.
     * @param _srcEid The source endpoint ID.
     * @param _amountLD The amount in local decimals.
     * @param _composeMsg The composed message.
     * @return _msg The encoded Composed message.
     */
    function encode(
        uint64 _nonce,
        uint32 _srcEid,
        uint256 _amountLD,
        bytes memory _composeMsg // 0x[composeFrom][composeMsg]
    ) internal pure returns (bytes memory _msg) {
        _msg = abi.encodePacked(_nonce, _srcEid, _amountLD, _composeMsg);
    }

    /**
     * @dev Retrieves the nonce for the composed message.
     * @param _msg The message.
     * @return The nonce value.
     */
    function nonce(bytes calldata _msg) internal pure returns (uint64) {
        return uint64(bytes8(_msg[:NONCE_OFFSET]));
    }

    /**
     * @dev Retrieves the source endpoint ID for the composed message.
     * @param _msg The message.
     * @return The source endpoint ID.
     */
    function srcEid(bytes calldata _msg) internal pure returns (uint32) {
        return uint32(bytes4(_msg[NONCE_OFFSET:SRC_EID_OFFSET]));
    }

    /**
     * @dev Retrieves the amount in local decimals from the composed message.
     * @param _msg The message.
     * @return The amount in local decimals.
     */
    function amountLD(bytes calldata _msg) internal pure returns (uint256) {
        return uint256(bytes32(_msg[SRC_EID_OFFSET:AMOUNT_LD_OFFSET]));
    }

    /**
     * @dev Retrieves the composeFrom value from the composed message.
     * @param _msg The message.
     * @return The composeFrom value.
     */
    function composeFrom(bytes calldata _msg) internal pure returns (bytes32) {
        return bytes32(_msg[AMOUNT_LD_OFFSET:COMPOSE_FROM_OFFSET]);
    }

    /**
     * @dev Retrieves the composed message.
     * @param _msg The message.
     * @return The composed message.
     */
    function composeMsg(bytes calldata _msg) internal pure returns (bytes memory) {
        return _msg[COMPOSE_FROM_OFFSET:];
    }

    /**
     * @dev Converts an address to bytes32.
     * @param _addr The address to convert.
     * @return The bytes32 representation of the address.
     */
    function addressToBytes32(address _addr) internal pure returns (bytes32) {
        return bytes32(uint256(uint160(_addr)));
    }

    /**
     * @dev Converts bytes32 to an address.
     * @param _b The bytes32 value to convert.
     * @return The address representation of bytes32.
     */
    function bytes32ToAddress(bytes32 _b) internal pure returns (address) {
        return address(uint160(uint256(_b)));
    }
}

@layerzerolabs/oft-evm/contracts/libs/OFTMsgCodec.sol

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.20;

library OFTMsgCodec {
    // Offset constants for encoding and decoding OFT messages
    uint8 private constant SEND_TO_OFFSET = 32;
    uint8 private constant SEND_AMOUNT_SD_OFFSET = 40;

    /**
     * @dev Encodes an OFT LayerZero message.
     * @param _sendTo The recipient address.
     * @param _amountShared The amount in shared decimals.
     * @param _composeMsg The composed message.
     * @return _msg The encoded message.
     * @return hasCompose A boolean indicating whether the message has a composed payload.
     */
    function encode(
        bytes32 _sendTo,
        uint64 _amountShared,
        bytes memory _composeMsg
    ) internal view returns (bytes memory _msg, bool hasCompose) {
        hasCompose = _composeMsg.length > 0;
        // @dev Remote chains will want to know the composed function caller ie. msg.sender on the src.
        _msg = hasCompose
            ? abi.encodePacked(_sendTo, _amountShared, addressToBytes32(msg.sender), _composeMsg)
            : abi.encodePacked(_sendTo, _amountShared);
    }

    /**
     * @dev Checks if the OFT message is composed.
     * @param _msg The OFT message.
     * @return A boolean indicating whether the message is composed.
     */
    function isComposed(bytes calldata _msg) internal pure returns (bool) {
        return _msg.length > SEND_AMOUNT_SD_OFFSET;
    }

    /**
     * @dev Retrieves the recipient address from the OFT message.
     * @param _msg The OFT message.
     * @return The recipient address.
     */
    function sendTo(bytes calldata _msg) internal pure returns (bytes32) {
        return bytes32(_msg[:SEND_TO_OFFSET]);
    }

    /**
     * @dev Retrieves the amount in shared decimals from the OFT message.
     * @param _msg The OFT message.
     * @return The amount in shared decimals.
     */
    function amountSD(bytes calldata _msg) internal pure returns (uint64) {
        return uint64(bytes8(_msg[SEND_TO_OFFSET:SEND_AMOUNT_SD_OFFSET]));
    }

    /**
     * @dev Retrieves the composed message from the OFT message.
     * @param _msg The OFT message.
     * @return The composed message.
     */
    function composeMsg(bytes calldata _msg) internal pure returns (bytes memory) {
        return _msg[SEND_AMOUNT_SD_OFFSET:];
    }

    /**
     * @dev Converts an address to bytes32.
     * @param _addr The address to convert.
     * @return The bytes32 representation of the address.
     */
    function addressToBytes32(address _addr) internal pure returns (bytes32) {
        return bytes32(uint256(uint160(_addr)));
    }

    /**
     * @dev Converts bytes32 to an address.
     * @param _b The bytes32 value to convert.
     * @return The address representation of bytes32.
     */
    function bytes32ToAddress(bytes32 _b) internal pure returns (address) {
        return address(uint160(uint256(_b)));
    }
}

@layerzerolabs/oft-evm/contracts/OFT.sol

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.20;

import { ERC20 } from "@openzeppelin/contracts/token/ERC20/ERC20.sol";
import { IOFT, OFTCore } from "./OFTCore.sol";

/**
 * @title OFT Contract
 * @dev OFT is an ERC-20 token that extends the functionality of the OFTCore contract.
 */
abstract contract OFT is OFTCore, ERC20 {
    /**
     * @dev Constructor for the OFT contract.
     * @param _name The name of the OFT.
     * @param _symbol The symbol of the OFT.
     * @param _lzEndpoint The LayerZero endpoint address.
     * @param _delegate The delegate capable of making OApp configurations inside of the endpoint.
     */
    constructor(
        string memory _name,
        string memory _symbol,
        address _lzEndpoint,
        address _delegate
    ) ERC20(_name, _symbol) OFTCore(decimals(), _lzEndpoint, _delegate) {}

    /**
     * @dev Retrieves the address of the underlying ERC20 implementation.
     * @return The address of the OFT token.
     *
     * @dev In the case of OFT, address(this) and erc20 are the same contract.
     */
    function token() public view returns (address) {
        return address(this);
    }

    /**
     * @notice Indicates whether the OFT contract requires approval of the 'token()' to send.
     * @return requiresApproval Needs approval of the underlying token implementation.
     *
     * @dev In the case of OFT where the contract IS the token, approval is NOT required.
     */
    function approvalRequired() external pure virtual returns (bool) {
        return false;
    }

    /**
     * @dev Burns tokens from the sender's specified balance.
     * @param _from The address to debit the tokens from.
     * @param _amountLD The amount of tokens to send in local decimals.
     * @param _minAmountLD The minimum amount to send in local decimals.
     * @param _dstEid The destination chain ID.
     * @return amountSentLD The amount sent in local decimals.
     * @return amountReceivedLD The amount received in local decimals on the remote.
     */
    function _debit(
        address _from,
        uint256 _amountLD,
        uint256 _minAmountLD,
        uint32 _dstEid
    ) internal virtual override returns (uint256 amountSentLD, uint256 amountReceivedLD) {
        (amountSentLD, amountReceivedLD) = _debitView(_amountLD, _minAmountLD, _dstEid);

        // @dev In NON-default OFT, amountSentLD could be 100, with a 10% fee, the amountReceivedLD amount is 90,
        // therefore amountSentLD CAN differ from amountReceivedLD.

        // @dev Default OFT burns on src.
        _burn(_from, amountSentLD);
    }

    /**
     * @dev Credits tokens to the specified address.
     * @param _to The address to credit the tokens to.
     * @param _amountLD The amount of tokens to credit in local decimals.
     * @dev _srcEid The source chain ID.
     * @return amountReceivedLD The amount of tokens ACTUALLY received in local decimals.
     */
    function _credit(
        address _to,
        uint256 _amountLD,
        uint32 /*_srcEid*/
    ) internal virtual override returns (uint256 amountReceivedLD) {
        if (_to == address(0x0)) _to = address(0xdead); // _mint(...) does not support address(0x0)
        // @dev Default OFT mints on dst.
        _mint(_to, _amountLD);
        // @dev In the case of NON-default OFT, the _amountLD MIGHT not be == amountReceivedLD.
        return _amountLD;
    }
}

@layerzerolabs/oft-evm/contracts/OFTAdapter.sol

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.20;

import { IERC20Metadata, IERC20 } from "@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol";
import { SafeERC20 } from "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
import { IOFT, OFTCore } from "./OFTCore.sol";

/**
 * @title OFTAdapter Contract
 * @dev OFTAdapter is a contract that adapts an ERC-20 token to the OFT functionality.
 *
 * @dev For existing ERC20 tokens, this can be used to convert the token to crosschain compatibility.
 * @dev WARNING: ONLY 1 of these should exist for a given global mesh,
 * unless you make a NON-default implementation of OFT and needs to be done very carefully.
 * @dev WARNING: The default OFTAdapter implementation assumes LOSSLESS transfers, ie. 1 token in, 1 token out.
 * IF the 'innerToken' applies something like a transfer fee, the default will NOT work...
 * a pre/post balance check will need to be done to calculate the amountSentLD/amountReceivedLD.
 */
abstract contract OFTAdapter is OFTCore {
    using SafeERC20 for IERC20;

    IERC20 internal immutable innerToken;

    /**
     * @dev Constructor for the OFTAdapter contract.
     * @param _token The address of the ERC-20 token to be adapted.
     * @param _lzEndpoint The LayerZero endpoint address.
     * @param _delegate The delegate capable of making OApp configurations inside of the endpoint.
     */
    constructor(
        address _token,
        address _lzEndpoint,
        address _delegate
    ) OFTCore(IERC20Metadata(_token).decimals(), _lzEndpoint, _delegate) {
        innerToken = IERC20(_token);
    }

    /**
     * @dev Retrieves the address of the underlying ERC20 implementation.
     * @return The address of the adapted ERC-20 token.
     *
     * @dev In the case of OFTAdapter, address(this) and erc20 are NOT the same contract.
     */
    function token() public view returns (address) {
        return address(innerToken);
    }

    /**
     * @notice Indicates whether the OFT contract requires approval of the 'token()' to send.
     * @return requiresApproval Needs approval of the underlying token implementation.
     *
     * @dev In the case of default OFTAdapter, approval is required.
     * @dev In non-default OFTAdapter contracts with something like mint and burn privileges, it would NOT need approval.
     */
    function approvalRequired() external pure virtual returns (bool) {
        return true;
    }

    /**
     * @dev Locks tokens from the sender's specified balance in this contract.
     * @param _from The address to debit from.
     * @param _amountLD The amount of tokens to send in local decimals.
     * @param _minAmountLD The minimum amount to send in local decimals.
     * @param _dstEid The destination chain ID.
     * @return amountSentLD The amount sent in local decimals.
     * @return amountReceivedLD The amount received in local decimals on the remote.
     *
     * @dev msg.sender will need to approve this _amountLD of tokens to be locked inside of the contract.
     * @dev WARNING: The default OFTAdapter implementation assumes LOSSLESS transfers, ie. 1 token in, 1 token out.
     * IF the 'innerToken' applies something like a transfer fee, the default will NOT work...
     * a pre/post balance check will need to be done to calculate the amountReceivedLD.
     */
    function _debit(
        address _from,
        uint256 _amountLD,
        uint256 _minAmountLD,
        uint32 _dstEid
    ) internal virtual override returns (uint256 amountSentLD, uint256 amountReceivedLD) {
        (amountSentLD, amountReceivedLD) = _debitView(_amountLD, _minAmountLD, _dstEid);
        // @dev Lock tokens by moving them into this contract from the caller.
        innerToken.safeTransferFrom(_from, address(this), amountSentLD);
    }

    /**
     * @dev Credits tokens to the specified address.
     * @param _to The address to credit the tokens to.
     * @param _amountLD The amount of tokens to credit in local decimals.
     * @dev _srcEid The source chain ID.
     * @return amountReceivedLD The amount of tokens ACTUALLY received in local decimals.
     *
     * @dev WARNING: The default OFTAdapter implementation assumes LOSSLESS transfers, ie. 1 token in, 1 token out.
     * IF the 'innerToken' applies something like a transfer fee, the default will NOT work...
     * a pre/post balance check will need to be done to calculate the amountReceivedLD.
     */
    function _credit(
        address _to,
        uint256 _amountLD,
        uint32 /*_srcEid*/
    ) internal virtual override returns (uint256 amountReceivedLD) {
        // @dev Unlock the tokens and transfer to the recipient.
        innerToken.safeTransfer(_to, _amountLD);
        // @dev In the case of NON-default OFTAdapter, the amountLD MIGHT not be == amountReceivedLD.
        return _amountLD;
    }
}

@layerzerolabs/oft-evm/contracts/OFTCore.sol

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.20;

import { IERC20 } from "@openzeppelin/contracts/token/ERC20/IERC20.sol";

import { OApp, Origin } from "@layerzerolabs/oapp-evm/contracts/oapp/OApp.sol";
import { OAppOptionsType3 } from "@layerzerolabs/oapp-evm/contracts/oapp/libs/OAppOptionsType3.sol";
import { IOAppMsgInspector } from "@layerzerolabs/oapp-evm/contracts/oapp/interfaces/IOAppMsgInspector.sol";

import { OAppPreCrimeSimulator } from "@layerzerolabs/oapp-evm/contracts/precrime/OAppPreCrimeSimulator.sol";

import { IOFT, SendParam, OFTLimit, OFTReceipt, OFTFeeDetail, MessagingReceipt, MessagingFee } from "./interfaces/IOFT.sol";
import { OFTMsgCodec } from "./libs/OFTMsgCodec.sol";
import { OFTComposeMsgCodec } from "./libs/OFTComposeMsgCodec.sol";

/**
 * @title OFTCore
 * @dev Abstract contract for the OftChain (OFT) token.
 */
abstract contract OFTCore is IOFT, OApp, OAppPreCrimeSimulator, OAppOptionsType3 {
    using OFTMsgCodec for bytes;
    using OFTMsgCodec for bytes32;

    // @notice Provides a conversion rate when swapping between denominations of SD and LD
    //      - shareDecimals == SD == shared Decimals
    //      - localDecimals == LD == local decimals
    // @dev Considers that tokens have different decimal amounts on various chains.
    // @dev eg.
    //  For a token
    //      - locally with 4 decimals --> 1.2345 => uint(12345)
    //      - remotely with 2 decimals --> 1.23 => uint(123)
    //      - The conversion rate would be 10 ** (4 - 2) = 100
    //  @dev If you want to send 1.2345 -> (uint 12345), you CANNOT represent that value on the remote,
    //  you can only display 1.23 -> uint(123).
    //  @dev To preserve the dust that would otherwise be lost on that conversion,
    //  we need to unify a denomination that can be represented on ALL chains inside of the OFT mesh
    uint256 public immutable decimalConversionRate;

    // @notice Msg types that are used to identify the various OFT operations.
    // @dev This can be extended in child contracts for non-default oft operations
    // @dev These values are used in things like combineOptions() in OAppOptionsType3.sol.
    uint16 public constant SEND = 1;
    uint16 public constant SEND_AND_CALL = 2;

    // Address of an optional contract to inspect both 'message' and 'options'
    address public msgInspector;
    event MsgInspectorSet(address inspector);

    /**
     * @dev Constructor.
     * @param _localDecimals The decimals of the token on the local chain (this chain).
     * @param _endpoint The address of the LayerZero endpoint.
     * @param _delegate The delegate capable of making OApp configurations inside of the endpoint.
     */
    constructor(uint8 _localDecimals, address _endpoint, address _delegate) OApp(_endpoint, _delegate) {
        if (_localDecimals < sharedDecimals()) revert InvalidLocalDecimals();
        decimalConversionRate = 10 ** (_localDecimals - sharedDecimals());
    }

    /**
     * @notice Retrieves interfaceID and the version of the OFT.
     * @return interfaceId The interface ID.
     * @return version The version.
     *
     * @dev interfaceId: This specific interface ID is '0x02e49c2c'.
     * @dev version: Indicates a cross-chain compatible msg encoding with other OFTs.
     * @dev If a new feature is added to the OFT cross-chain msg encoding, the version will be incremented.
     * ie. localOFT version(x,1) CAN send messages to remoteOFT version(x,1)
     */
    function oftVersion() external pure virtual returns (bytes4 interfaceId, uint64 version) {
        return (type(IOFT).interfaceId, 1);
    }

    /**
     * @dev Retrieves the shared decimals of the OFT.
     * @return The shared decimals of the OFT.
     *
     * @dev Sets an implicit cap on the amount of tokens, over uint64.max() will need some sort of outbound cap / totalSupply cap
     * Lowest common decimal denominator between chains.
     * Defaults to 6 decimal places to provide up to 18,446,744,073,709.551615 units (max uint64).
     * For tokens exceeding this totalSupply(), they will need to override the sharedDecimals function with something smaller.
     * ie. 4 sharedDecimals would be 1,844,674,407,370,955.1615
     */
    function sharedDecimals() public view virtual returns (uint8) {
        return 6;
    }

    /**
     * @dev Sets the message inspector address for the OFT.
     * @param _msgInspector The address of the message inspector.
     *
     * @dev This is an optional contract that can be used to inspect both 'message' and 'options'.
     * @dev Set it to address(0) to disable it, or set it to a contract address to enable it.
     */
    function setMsgInspector(address _msgInspector) public virtual onlyOwner {
        msgInspector = _msgInspector;
        emit MsgInspectorSet(_msgInspector);
    }

    /**
     * @notice Provides the fee breakdown and settings data for an OFT. Unused in the default implementation.
     * @param _sendParam The parameters for the send operation.
     * @return oftLimit The OFT limit information.
     * @return oftFeeDetails The details of OFT fees.
     * @return oftReceipt The OFT receipt information.
     */
    function quoteOFT(
        SendParam calldata _sendParam
    )
        external
        view
        virtual
        returns (OFTLimit memory oftLimit, OFTFeeDetail[] memory oftFeeDetails, OFTReceipt memory oftReceipt)
    {
        uint256 minAmountLD = 0; // Unused in the default implementation.
        uint256 maxAmountLD = IERC20(this.token()).totalSupply(); // Unused in the default implementation.
        oftLimit = OFTLimit(minAmountLD, maxAmountLD);

        // Unused in the default implementation; reserved for future complex fee details.
        oftFeeDetails = new OFTFeeDetail[](0);

        // @dev This is the same as the send() operation, but without the actual send.
        // - amountSentLD is the amount in local decimals that would be sent from the sender.
        // - amountReceivedLD is the amount in local decimals that will be credited to the recipient on the remote OFT instance.
        // @dev The amountSentLD MIGHT not equal the amount the user actually receives. HOWEVER, the default does.
        (uint256 amountSentLD, uint256 amountReceivedLD) = _debitView(
            _sendParam.amountLD,
            _sendParam.minAmountLD,
            _sendParam.dstEid
        );
        oftReceipt = OFTReceipt(amountSentLD, amountReceivedLD);
    }

    /**
     * @notice Provides a quote for the send() operation.
     * @param _sendParam The parameters for the send() operation.
     * @param _payInLzToken Flag indicating whether the caller is paying in the LZ token.
     * @return msgFee The calculated LayerZero messaging fee from the send() operation.
     *
     * @dev MessagingFee: LayerZero msg fee
     *  - nativeFee: The native fee.
     *  - lzTokenFee: The lzToken fee.
     */
    function quoteSend(
        SendParam calldata _sendParam,
        bool _payInLzToken
    ) external view virtual returns (MessagingFee memory msgFee) {
        // @dev mock the amount to receive, this is the same operation used in the send().
        // The quote is as similar as possible to the actual send() operation.
        (, uint256 amountReceivedLD) = _debitView(_sendParam.amountLD, _sendParam.minAmountLD, _sendParam.dstEid);

        // @dev Builds the options and OFT message to quote in the endpoint.
        (bytes memory message, bytes memory options) = _buildMsgAndOptions(_sendParam, amountReceivedLD);

        // @dev Calculates the LayerZero fee for the send() operation.
        return _quote(_sendParam.dstEid, message, options, _payInLzToken);
    }

    /**
     * @dev Executes the send operation.
     * @param _sendParam The parameters for the send operation.
     * @param _fee The calculated fee for the send() operation.
     *      - nativeFee: The native fee.
     *      - lzTokenFee: The lzToken fee.
     * @param _refundAddress The address to receive any excess funds.
     * @return msgReceipt The receipt for the send operation.
     * @return oftReceipt The OFT receipt information.
     *
     * @dev MessagingReceipt: LayerZero msg receipt
     *  - guid: The unique identifier for the sent message.
     *  - nonce: The nonce of the sent message.
     *  - fee: The LayerZero fee incurred for the message.
     */
    function send(
        SendParam calldata _sendParam,
        MessagingFee calldata _fee,
        address _refundAddress
    ) external payable virtual returns (MessagingReceipt memory msgReceipt, OFTReceipt memory oftReceipt) {
        return _send(_sendParam, _fee, _refundAddress);
    }

    /**
     * @dev Internal function to execute the send operation.
     * @param _sendParam The parameters for the send operation.
     * @param _fee The calculated fee for the send() operation.
     *      - nativeFee: The native fee.
     *      - lzTokenFee: The lzToken fee.
     * @param _refundAddress The address to receive any excess funds.
     * @return msgReceipt The receipt for the send operation.
     * @return oftReceipt The OFT receipt information.
     *
     * @dev MessagingReceipt: LayerZero msg receipt
     *  - guid: The unique identifier for the sent message.
     *  - nonce: The nonce of the sent message.
     *  - fee: The LayerZero fee incurred for the message.
     */
    function _send(
        SendParam calldata _sendParam,
        MessagingFee calldata _fee,
        address _refundAddress
    ) internal virtual returns (MessagingReceipt memory msgReceipt, OFTReceipt memory oftReceipt) {
        // @dev Applies the token transfers regarding this send() operation.
        // - amountSentLD is the amount in local decimals that was ACTUALLY sent/debited from the sender.
        // - amountReceivedLD is the amount in local decimals that will be received/credited to the recipient on the remote OFT instance.
        (uint256 amountSentLD, uint256 amountReceivedLD) = _debit(
            msg.sender,
            _sendParam.amountLD,
            _sendParam.minAmountLD,
            _sendParam.dstEid
        );

        // @dev Builds the options and OFT message to quote in the endpoint.
        (bytes memory message, bytes memory options) = _buildMsgAndOptions(_sendParam, amountReceivedLD);

        // @dev Sends the message to the LayerZero endpoint and returns the LayerZero msg receipt.
        msgReceipt = _lzSend(_sendParam.dstEid, message, options, _fee, _refundAddress);
        // @dev Formulate the OFT receipt.
        oftReceipt = OFTReceipt(amountSentLD, amountReceivedLD);

        emit OFTSent(msgReceipt.guid, _sendParam.dstEid, msg.sender, amountSentLD, amountReceivedLD);
    }

    /**
     * @dev Internal function to build the message and options.
     * @param _sendParam The parameters for the send() operation.
     * @param _amountLD The amount in local decimals.
     * @return message The encoded message.
     * @return options The encoded options.
     */
    function _buildMsgAndOptions(
        SendParam calldata _sendParam,
        uint256 _amountLD
    ) internal view virtual returns (bytes memory message, bytes memory options) {
        bool hasCompose;
        // @dev This generated message has the msg.sender encoded into the payload so the remote knows who the caller is.
        (message, hasCompose) = OFTMsgCodec.encode(
            _sendParam.to,
            _toSD(_amountLD),
            // @dev Must be include a non empty bytes if you want to compose, EVEN if you dont need it on the remote.
            // EVEN if you dont require an arbitrary payload to be sent... eg. '0x01'
            _sendParam.composeMsg
        );
        // @dev Change the msg type depending if its composed or not.
        uint16 msgType = hasCompose ? SEND_AND_CALL : SEND;
        // @dev Combine the callers _extraOptions with the enforced options via the OAppOptionsType3.
        options = combineOptions(_sendParam.dstEid, msgType, _sendParam.extraOptions);

        // @dev Optionally inspect the message and options depending if the OApp owner has set a msg inspector.
        // @dev If it fails inspection, needs to revert in the implementation. ie. does not rely on return boolean
        address inspector = msgInspector; // caches the msgInspector to avoid potential double storage read
        if (inspector != address(0)) IOAppMsgInspector(inspector).inspect(message, options);
    }

    /**
     * @dev Internal function to handle the receive on the LayerZero endpoint.
     * @param _origin The origin information.
     *  - srcEid: The source chain endpoint ID.
     *  - sender: The sender address from the src chain.
     *  - nonce: The nonce of the LayerZero message.
     * @param _guid The unique identifier for the received LayerZero message.
     * @param _message The encoded message.
     * @dev _executor The address of the executor.
     * @dev _extraData Additional data.
     */
    function _lzReceive(
        Origin calldata _origin,
        bytes32 _guid,
        bytes calldata _message,
        address /*_executor*/, // @dev unused in the default implementation.
        bytes calldata /*_extraData*/ // @dev unused in the default implementation.
    ) internal virtual override {
        // @dev The src sending chain doesnt know the address length on this chain (potentially non-evm)
        // Thus everything is bytes32() encoded in flight.
        address toAddress = _message.sendTo().bytes32ToAddress();
        // @dev Credit the amountLD to the recipient and return the ACTUAL amount the recipient received in local decimals
        uint256 amountReceivedLD = _credit(toAddress, _toLD(_message.amountSD()), _origin.srcEid);

        if (_message.isComposed()) {
            // @dev Proprietary composeMsg format for the OFT.
            bytes memory composeMsg = OFTComposeMsgCodec.encode(
                _origin.nonce,
                _origin.srcEid,
                amountReceivedLD,
                _message.composeMsg()
            );

            // @dev Stores the lzCompose payload that will be executed in a separate tx.
            // Standardizes functionality for executing arbitrary contract invocation on some non-evm chains.
            // @dev The off-chain executor will listen and process the msg based on the src-chain-callers compose options passed.
            // @dev The index is used when a OApp needs to compose multiple msgs on lzReceive.
            // For default OFT implementation there is only 1 compose msg per lzReceive, thus its always 0.
            endpoint.sendCompose(toAddress, _guid, 0 /* the index of the composed message*/, composeMsg);
        }

        emit OFTReceived(_guid, _origin.srcEid, toAddress, amountReceivedLD);
    }

    /**
     * @dev Internal function to handle the OAppPreCrimeSimulator simulated receive.
     * @param _origin The origin information.
     *  - srcEid: The source chain endpoint ID.
     *  - sender: The sender address from the src chain.
     *  - nonce: The nonce of the LayerZero message.
     * @param _guid The unique identifier for the received LayerZero message.
     * @param _message The LayerZero message.
     * @param _executor The address of the off-chain executor.
     * @param _extraData Arbitrary data passed by the msg executor.
     *
     * @dev Enables the preCrime simulator to mock sending lzReceive() messages,
     * routes the msg down from the OAppPreCrimeSimulator, and back up to the OAppReceiver.
     */
    function _lzReceiveSimulate(
        Origin calldata _origin,
        bytes32 _guid,
        bytes calldata _message,
        address _executor,
        bytes calldata _extraData
    ) internal virtual override {
        _lzReceive(_origin, _guid, _message, _executor, _extraData);
    }

    /**
     * @dev Check if the peer is considered 'trusted' by the OApp.
     * @param _eid The endpoint ID to check.
     * @param _peer The peer to check.
     * @return Whether the peer passed is considered 'trusted' by the OApp.
     *
     * @dev Enables OAppPreCrimeSimulator to check whether a potential Inbound Packet is from a trusted source.
     */
    function isPeer(uint32 _eid, bytes32 _peer) public view virtual override returns (bool) {
        return peers[_eid] == _peer;
    }

    /**
     * @dev Internal function to remove dust from the given local decimal amount.
     * @param _amountLD The amount in local decimals.
     * @return amountLD The amount after removing dust.
     *
     * @dev Prevents the loss of dust when moving amounts between chains with different decimals.
     * @dev eg. uint(123) with a conversion rate of 100 becomes uint(100).
     */
    function _removeDust(uint256 _amountLD) internal view virtual returns (uint256 amountLD) {
        return (_amountLD / decimalConversionRate) * decimalConversionRate;
    }

    /**
     * @dev Internal function to convert an amount from shared decimals into local decimals.
     * @param _amountSD The amount in shared decimals.
     * @return amountLD The amount in local decimals.
     */
    function _toLD(uint64 _amountSD) internal view virtual returns (uint256 amountLD) {
        return _amountSD * decimalConversionRate;
    }

    /**
     * @dev Internal function to convert an amount from local decimals into shared decimals.
     * @param _amountLD The amount in local decimals.
     * @return amountSD The amount in shared decimals.
     *
     * @dev Reverts if the _amountLD in shared decimals overflows uint64.
     * @dev eg. uint(2**64 + 123) with a conversion rate of 1 wraps around 2**64 to uint(123).
     */
    function _toSD(uint256 _amountLD) internal view virtual returns (uint64 amountSD) {
        uint256 _amountSD = _amountLD / decimalConversionRate;
        if (_amountSD > type(uint64).max) revert AmountSDOverflowed(_amountSD);
        return uint64(_amountSD);
    }

    /**
     * @dev Internal function to mock the amount mutation from a OFT debit() operation.
     * @param _amountLD The amount to send in local decimals.
     * @param _minAmountLD The minimum amount to send in local decimals.
     * @dev _dstEid The destination endpoint ID.
     * @return amountSentLD The amount sent, in local decimals.
     * @return amountReceivedLD The amount to be received on the remote chain, in local decimals.
     *
     * @dev This is where things like fees would be calculated and deducted from the amount to be received on the remote.
     */
    function _debitView(
        uint256 _amountLD,
        uint256 _minAmountLD,
        uint32 /*_dstEid*/
    ) internal view virtual returns (uint256 amountSentLD, uint256 amountReceivedLD) {
        // @dev Remove the dust so nothing is lost on the conversion between chains with different decimals for the token.
        amountSentLD = _removeDust(_amountLD);
        // @dev The amount to send is the same as amount received in the default implementation.
        amountReceivedLD = amountSentLD;

        // @dev Check for slippage.
        if (amountReceivedLD < _minAmountLD) {
            revert SlippageExceeded(amountReceivedLD, _minAmountLD);
        }
    }

    /**
     * @dev Internal function to perform a debit operation.
     * @param _from The address to debit.
     * @param _amountLD The amount to send in local decimals.
     * @param _minAmountLD The minimum amount to send in local decimals.
     * @param _dstEid The destination endpoint ID.
     * @return amountSentLD The amount sent in local decimals.
     * @return amountReceivedLD The amount received in local decimals on the remote.
     *
     * @dev Defined here but are intended to be overriden depending on the OFT implementation.
     * @dev Depending on OFT implementation the _amountLD could differ from the amountReceivedLD.
     */
    function _debit(
        address _from,
        uint256 _amountLD,
        uint256 _minAmountLD,
        uint32 _dstEid
    ) internal virtual returns (uint256 amountSentLD, uint256 amountReceivedLD);

    /**
     * @dev Internal function to perform a credit operation.
     * @param _to The address to credit.
     * @param _amountLD The amount to credit in local decimals.
     * @param _srcEid The source endpoint ID.
     * @return amountReceivedLD The amount ACTUALLY received in local decimals.
     *
     * @dev Defined here but are intended to be overriden depending on the OFT implementation.
     * @dev Depending on OFT implementation the _amountLD could differ from the amountReceivedLD.
     */
    function _credit(
        address _to,
        uint256 _amountLD,
        uint32 _srcEid
    ) internal virtual returns (uint256 amountReceivedLD);
}

@openzeppelin/contracts/access/AccessControl.sol

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (access/AccessControl.sol)

pragma solidity ^0.8.0;

import "./IAccessControl.sol";
import "../utils/Context.sol";
import "../utils/Strings.sol";
import "../utils/introspection/ERC165.sol";

/**
 * @dev Contract module that allows children to implement role-based access
 * control mechanisms. This is a lightweight version that doesn't allow enumerating role
 * members except through off-chain means by accessing the contract event logs. Some
 * applications may benefit from on-chain enumerability, for those cases see
 * {AccessControlEnumerable}.
 *
 * Roles are referred to by their `bytes32` identifier. These should be exposed
 * in the external API and be unique. The best way to achieve this is by
 * using `public constant` hash digests:
 *
 * ```solidity
 * bytes32 public constant MY_ROLE = keccak256("MY_ROLE");
 * ```
 *
 * Roles can be used to represent a set of permissions. To restrict access to a
 * function call, use {hasRole}:
 *
 * ```solidity
 * function foo() public {
 *     require(hasRole(MY_ROLE, msg.sender));
 *     ...
 * }
 * ```
 *
 * Roles can be granted and revoked dynamically via the {grantRole} and
 * {revokeRole} functions. Each role has an associated admin role, and only
 * accounts that have a role's admin role can call {grantRole} and {revokeRole}.
 *
 * By default, the admin role for all roles is `DEFAULT_ADMIN_ROLE`, which means
 * that only accounts with this role will be able to grant or revoke other
 * roles. More complex role relationships can be created by using
 * {_setRoleAdmin}.
 *
 * WARNING: The `DEFAULT_ADMIN_ROLE` is also its own admin: it has permission to
 * grant and revoke this role. Extra precautions should be taken to secure
 * accounts that have been granted it. We recommend using {AccessControlDefaultAdminRules}
 * to enforce additional security measures for this role.
 */
abstract contract AccessControl is Context, IAccessControl, ERC165 {
    struct RoleData {
        mapping(address => bool) members;
        bytes32 adminRole;
    }

    mapping(bytes32 => RoleData) private _roles;

    bytes32 public constant DEFAULT_ADMIN_ROLE = 0x00;

    /**
     * @dev Modifier that checks that an account has a specific role. Reverts
     * with a standardized message including the required role.
     *
     * The format of the revert reason is given by the following regular expression:
     *
     *  /^AccessControl: account (0x[0-9a-f]{40}) is missing role (0x[0-9a-f]{64})$/
     *
     * _Available since v4.1._
     */
    modifier onlyRole(bytes32 role) {
        _checkRole(role);
        _;
    }

    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
        return interfaceId == type(IAccessControl).interfaceId || super.supportsInterface(interfaceId);
    }

    /**
     * @dev Returns `true` if `account` has been granted `role`.
     */
    function hasRole(bytes32 role, address account) public view virtual override returns (bool) {
        return _roles[role].members[account];
    }

    /**
     * @dev Revert with a standard message if `_msgSender()` is missing `role`.
     * Overriding this function changes the behavior of the {onlyRole} modifier.
     *
     * Format of the revert message is described in {_checkRole}.
     *
     * _Available since v4.6._
     */
    function _checkRole(bytes32 role) internal view virtual {
        _checkRole(role, _msgSender());
    }

    /**
     * @dev Revert with a standard message if `account` is missing `role`.
     *
     * The format of the revert reason is given by the following regular expression:
     *
     *  /^AccessControl: account (0x[0-9a-f]{40}) is missing role (0x[0-9a-f]{64})$/
     */
    function _checkRole(bytes32 role, address account) internal view virtual {
        if (!hasRole(role, account)) {
            revert(
                string(
                    abi.encodePacked(
                        "AccessControl: account ",
                        Strings.toHexString(account),
                        " is missing role ",
                        Strings.toHexString(uint256(role), 32)
                    )
                )
            );
        }
    }

    /**
     * @dev Returns the admin role that controls `role`. See {grantRole} and
     * {revokeRole}.
     *
     * To change a role's admin, use {_setRoleAdmin}.
     */
    function getRoleAdmin(bytes32 role) public view virtual override returns (bytes32) {
        return _roles[role].adminRole;
    }

    /**
     * @dev Grants `role` to `account`.
     *
     * If `account` had not been already granted `role`, emits a {RoleGranted}
     * event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     *
     * May emit a {RoleGranted} event.
     */
    function grantRole(bytes32 role, address account) public virtual override onlyRole(getRoleAdmin(role)) {
        _grantRole(role, account);
    }

    /**
     * @dev Revokes `role` from `account`.
     *
     * If `account` had been granted `role`, emits a {RoleRevoked} event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     *
     * May emit a {RoleRevoked} event.
     */
    function revokeRole(bytes32 role, address account) public virtual override onlyRole(getRoleAdmin(role)) {
        _revokeRole(role, account);
    }

    /**
     * @dev Revokes `role` from the calling account.
     *
     * Roles are often managed via {grantRole} and {revokeRole}: this function's
     * purpose is to provide a mechanism for accounts to lose their privileges
     * if they are compromised (such as when a trusted device is misplaced).
     *
     * If the calling account had been revoked `role`, emits a {RoleRevoked}
     * event.
     *
     * Requirements:
     *
     * - the caller must be `account`.
     *
     * May emit a {RoleRevoked} event.
     */
    function renounceRole(bytes32 role, address account) public virtual override {
        require(account == _msgSender(), "AccessControl: can only renounce roles for self");

        _revokeRole(role, account);
    }

    /**
     * @dev Grants `role` to `account`.
     *
     * If `account` had not been already granted `role`, emits a {RoleGranted}
     * event. Note that unlike {grantRole}, this function doesn't perform any
     * checks on the calling account.
     *
     * May emit a {RoleGranted} event.
     *
     * [WARNING]
     * ====
     * This function should only be called from the constructor when setting
     * up the initial roles for the system.
     *
     * Using this function in any other way is effectively circumventing the admin
     * system imposed by {AccessControl}.
     * ====
     *
     * NOTE: This function is deprecated in favor of {_grantRole}.
     */
    function _setupRole(bytes32 role, address account) internal virtual {
        _grantRole(role, account);
    }

    /**
     * @dev Sets `adminRole` as ``role``'s admin role.
     *
     * Emits a {RoleAdminChanged} event.
     */
    function _setRoleAdmin(bytes32 role, bytes32 adminRole) internal virtual {
        bytes32 previousAdminRole = getRoleAdmin(role);
        _roles[role].adminRole = adminRole;
        emit RoleAdminChanged(role, previousAdminRole, adminRole);
    }

    /**
     * @dev Grants `role` to `account`.
     *
     * Internal function without access restriction.
     *
     * May emit a {RoleGranted} event.
     */
    function _grantRole(bytes32 role, address account) internal virtual {
        if (!hasRole(role, account)) {
            _roles[role].members[account] = true;
            emit RoleGranted(role, account, _msgSender());
        }
    }

    /**
     * @dev Revokes `role` from `account`.
     *
     * Internal function without access restriction.
     *
     * May emit a {RoleRevoked} event.
     */
    function _revokeRole(bytes32 role, address account) internal virtual {
        if (hasRole(role, account)) {
            _roles[role].members[account] = false;
            emit RoleRevoked(role, account, _msgSender());
        }
    }
}

@openzeppelin/contracts/access/IAccessControl.sol

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (access/IAccessControl.sol)

pragma solidity ^0.8.0;

/**
 * @dev External interface of AccessControl declared to support ERC165 detection.
 */
interface IAccessControl {
    /**
     * @dev Emitted when `newAdminRole` is set as ``role``'s admin role, replacing `previousAdminRole`
     *
     * `DEFAULT_ADMIN_ROLE` is the starting admin for all roles, despite
     * {RoleAdminChanged} not being emitted signaling this.
     *
     * _Available since v3.1._
     */
    event RoleAdminChanged(bytes32 indexed role, bytes32 indexed previousAdminRole, bytes32 indexed newAdminRole);

    /**
     * @dev Emitted when `account` is granted `role`.
     *
     * `sender` is the account that originated the contract call, an admin role
     * bearer except when using {AccessControl-_setupRole}.
     */
    event RoleGranted(bytes32 indexed role, address indexed account, address indexed sender);

    /**
     * @dev Emitted when `account` is revoked `role`.
     *
     * `sender` is the account that originated the contract call:
     *   - if using `revokeRole`, it is the admin role bearer
     *   - if using `renounceRole`, it is the role bearer (i.e. `account`)
     */
    event RoleRevoked(bytes32 indexed role, address indexed account, address indexed sender);

    /**
     * @dev Returns `true` if `account` has been granted `role`.
     */
    function hasRole(bytes32 role, address account) external view returns (bool);

    /**
     * @dev Returns the admin role that controls `role`. See {grantRole} and
     * {revokeRole}.
     *
     * To change a role's admin, use {AccessControl-_setRoleAdmin}.
     */
    function getRoleAdmin(bytes32 role) external view returns (bytes32);

    /**
     * @dev Grants `role` to `account`.
     *
     * If `account` had not been already granted `role`, emits a {RoleGranted}
     * event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     */
    function grantRole(bytes32 role, address account) external;

    /**
     * @dev Revokes `role` from `account`.
     *
     * If `account` had been granted `role`, emits a {RoleRevoked} event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     */
    function revokeRole(bytes32 role, address account) external;

    /**
     * @dev Revokes `role` from the calling account.
     *
     * Roles are often managed via {grantRole} and {revokeRole}: this function's
     * purpose is to provide a mechanism for accounts to lose their privileges
     * if they are compromised (such as when a trusted device is misplaced).
     *
     * If the calling account had been granted `role`, emits a {RoleRevoked}
     * event.
     *
     * Requirements:
     *
     * - the caller must be `account`.
     */
    function renounceRole(bytes32 role, address account) external;
}

@openzeppelin/contracts/access/Ownable.sol

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (access/Ownable.sol)

pragma solidity ^0.8.0;

import "../utils/Context.sol";

/**
 * @dev Contract module which provides a basic access control mechanism, where
 * there is an account (an owner) that can be granted exclusive access to
 * specific functions.
 *
 * By default, the owner account will be the one that deploys the contract. This
 * can later be changed with {transferOwnership}.
 *
 * This module is used through inheritance. It will make available the modifier
 * `onlyOwner`, which can be applied to your functions to restrict their use to
 * the owner.
 */
abstract contract Ownable is Context {
    address private _owner;

    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    /**
     * @dev Initializes the contract setting the deployer as the initial owner.
     */
    constructor() {
        _transferOwnership(_msgSender());
    }

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        _checkOwner();
        _;
    }

    /**
     * @dev Returns the address of the current owner.
     */
    function owner() public view virtual returns (address) {
        return _owner;
    }

    /**
     * @dev Throws if the sender is not the owner.
     */
    function _checkOwner() internal view virtual {
        require(owner() == _msgSender(), "Ownable: caller is not the owner");
    }

    /**
     * @dev Leaves the contract without owner. It will not be possible to call
     * `onlyOwner` functions. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby disabling any functionality that is only available to the owner.
     */
    function renounceOwnership() public virtual onlyOwner {
        _transferOwnership(address(0));
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Can only be called by the current owner.
     */
    function transferOwnership(address newOwner) public virtual onlyOwner {
        require(newOwner != address(0), "Ownable: new owner is the zero address");
        _transferOwnership(newOwner);
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Internal function without access restriction.
     */
    function _transferOwnership(address newOwner) internal virtual {
        address oldOwner = _owner;
        _owner = newOwner;
        emit OwnershipTransferred(oldOwner, newOwner);
    }
}

@openzeppelin/contracts/access/Ownable2Step.sol

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (access/Ownable2Step.sol)

pragma solidity ^0.8.0;

import "./Ownable.sol";

/**
 * @dev Contract module which provides access control mechanism, where
 * there is an account (an owner) that can be granted exclusive access to
 * specific functions.
 *
 * By default, the owner account will be the one that deploys the contract. This
 * can later be changed with {transferOwnership} and {acceptOwnership}.
 *
 * This module is used through inheritance. It will make available all functions
 * from parent (Ownable).
 */
abstract contract Ownable2Step is Ownable {
    address private _pendingOwner;

    event OwnershipTransferStarted(address indexed previousOwner, address indexed newOwner);

    /**
     * @dev Returns the address of the pending owner.
     */
    function pendingOwner() public view virtual returns (address) {
        return _pendingOwner;
    }

    /**
     * @dev Starts the ownership transfer of the contract to a new account. Replaces the pending transfer if there is one.
     * Can only be called by the current owner.
     */
    function transferOwnership(address newOwner) public virtual override onlyOwner {
        _pendingOwner = newOwner;
        emit OwnershipTransferStarted(owner(), newOwner);
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`) and deletes any pending owner.
     * Internal function without access restriction.
     */
    function _transferOwnership(address newOwner) internal virtual override {
        delete _pendingOwner;
        super._transferOwnership(newOwner);
    }

    /**
     * @dev The new owner accepts the ownership transfer.
     */
    function acceptOwnership() public virtual {
        address sender = _msgSender();
        require(pendingOwner() == sender, "Ownable2Step: caller is not the new owner");
        _transferOwnership(sender);
    }
}

@openzeppelin/contracts/interfaces/IERC1271.sol

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (interfaces/IERC1271.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC1271 standard signature validation method for
 * contracts as defined in https://eips.ethereum.org/EIPS/eip-1271[ERC-1271].
 *
 * _Available since v4.1._
 */
interface IERC1271 {
    /**
     * @dev Should return whether the signature provided is valid for the provided data
     * @param hash      Hash of the data to be signed
     * @param signature Signature byte array associated with _data
     */
    function isValidSignature(bytes32 hash, bytes memory signature) external view returns (bytes4 magicValue);
}

@openzeppelin/contracts/interfaces/IERC5267.sol

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (interfaces/IERC5267.sol)

pragma solidity ^0.8.0;

interface IERC5267 {
    /**
     * @dev MAY be emitted to signal that the domain could have changed.
     */
    event EIP712DomainChanged();

    /**
     * @dev returns the fields and values that describe the domain separator used by this contract for EIP-712
     * signature.
     */
    function eip712Domain()
        external
        view
        returns (
            bytes1 fields,
            string memory name,
            string memory version,
            uint256 chainId,
            address verifyingContract,
            bytes32 salt,
            uint256[] memory extensions
        );
}

@openzeppelin/contracts/security/ReentrancyGuard.sol

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (security/ReentrancyGuard.sol)

pragma solidity ^0.8.0;

/**
 * @dev Contract module that helps prevent reentrant calls to a function.
 *
 * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier
 * available, which can be applied to functions to make sure there are no nested
 * (reentrant) calls to them.
 *
 * Note that because there is a single `nonReentrant` guard, functions marked as
 * `nonReentrant` may not call one another. This can be worked around by making
 * those functions `private`, and then adding `external` `nonReentrant` entry
 * points to them.
 *
 * TIP: If you would like to learn more about reentrancy and alternative ways
 * to protect against it, check out our blog post
 * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].
 */
abstract contract ReentrancyGuard {
    // Booleans are more expensive than uint256 or any type that takes up a full
    // word because each write operation emits an extra SLOAD to first read the
    // slot's contents, replace the bits taken up by the boolean, and then write
    // back. This is the compiler's defense against contract upgrades and
    // pointer aliasing, and it cannot be disabled.

    // The values being non-zero value makes deployment a bit more expensive,
    // but in exchange the refund on every call to nonReentrant will be lower in
    // amount. Since refunds are capped to a percentage of the total
    // transaction's gas, it is best to keep them low in cases like this one, to
    // increase the likelihood of the full refund coming into effect.
    uint256 private constant _NOT_ENTERED = 1;
    uint256 private constant _ENTERED = 2;

    uint256 private _status;

    constructor() {
        _status = _NOT_ENTERED;
    }

    /**
     * @dev Prevents a contract from calling itself, directly or indirectly.
     * Calling a `nonReentrant` function from another `nonReentrant`
     * function is not supported. It is possible to prevent this from happening
     * by making the `nonReentrant` function external, and making it call a
     * `private` function that does the actual work.
     */
    modifier nonReentrant() {
        _nonReentrantBefore();
        _;
        _nonReentrantAfter();
    }

    function _nonReentrantBefore() private {
        // On the first call to nonReentrant, _status will be _NOT_ENTERED
        require(_status != _ENTERED, "ReentrancyGuard: reentrant call");

        // Any calls to nonReentrant after this point will fail
        _status = _ENTERED;
    }

    function _nonReentrantAfter() private {
        // By storing the original value once again, a refund is triggered (see
        // https://eips.ethereum.org/EIPS/eip-2200)
        _status = _NOT_ENTERED;
    }

    /**
     * @dev Returns true if the reentrancy guard is currently set to "entered", which indicates there is a
     * `nonReentrant` function in the call stack.
     */
    function _reentrancyGuardEntered() internal view returns (bool) {
        return _status == _ENTERED;
    }
}

@openzeppelin/contracts/token/ERC20/ERC20.sol

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/ERC20.sol)

pragma solidity ^0.8.0;

import "./IERC20.sol";
import "./extensions/IERC20Metadata.sol";
import "../../utils/Context.sol";

/**
 * @dev Implementation of the {IERC20} interface.
 *
 * This implementation is agnostic to the way tokens are created. This means
 * that a supply mechanism has to be added in a derived contract using {_mint}.
 * For a generic mechanism see {ERC20PresetMinterPauser}.
 *
 * TIP: For a detailed writeup see our guide
 * https://forum.openzeppelin.com/t/how-to-implement-erc20-supply-mechanisms/226[How
 * to implement supply mechanisms].
 *
 * The default value of {decimals} is 18. To change this, you should override
 * this function so it returns a different value.
 *
 * We have followed general OpenZeppelin Contracts guidelines: functions revert
 * instead returning `false` on failure. This behavior is nonetheless
 * conventional and does not conflict with the expectations of ERC20
 * applications.
 *
 * Additionally, an {Approval} event is emitted on calls to {transferFrom}.
 * This allows applications to reconstruct the allowance for all accounts just
 * by listening to said events. Other implementations of the EIP may not emit
 * these events, as it isn't required by the specification.
 *
 * Finally, the non-standard {decreaseAllowance} and {increaseAllowance}
 * functions have been added to mitigate the well-known issues around setting
 * allowances. See {IERC20-approve}.
 */
contract ERC20 is Context, IERC20, IERC20Metadata {
    mapping(address => uint256) private _balances;

    mapping(address => mapping(address => uint256)) private _allowances;

    uint256 private _totalSupply;

    string private _name;
    string private _symbol;

    /**
     * @dev Sets the values for {name} and {symbol}.
     *
     * All two of these values are immutable: they can only be set once during
     * construction.
     */
    constructor(string memory name_, string memory symbol_) {
        _name = name_;
        _symbol = symbol_;
    }

    /**
     * @dev Returns the name of the token.
     */
    function name() public view virtual override returns (string memory) {
        return _name;
    }

    /**
     * @dev Returns the symbol of the token, usually a shorter version of the
     * name.
     */
    function symbol() public view virtual override returns (string memory) {
        return _symbol;
    }

    /**
     * @dev Returns the number of decimals used to get its user representation.
     * For example, if `decimals` equals `2`, a balance of `505` tokens should
     * be displayed to a user as `5.05` (`505 / 10 ** 2`).
     *
     * Tokens usually opt for a value of 18, imitating the relationship between
     * Ether and Wei. This is the default value returned by this function, unless
     * it's overridden.
     *
     * NOTE: This information is only used for _display_ purposes: it in
     * no way affects any of the arithmetic of the contract, including
     * {IERC20-balanceOf} and {IERC20-transfer}.
     */
    function decimals() public view virtual override returns (uint8) {
        return 18;
    }

    /**
     * @dev See {IERC20-totalSupply}.
     */
    function totalSupply() public view virtual override returns (uint256) {
        return _totalSupply;
    }

    /**
     * @dev See {IERC20-balanceOf}.
     */
    function balanceOf(address account) public view virtual override returns (uint256) {
        return _balances[account];
    }

    /**
     * @dev See {IERC20-transfer}.
     *
     * Requirements:
     *
     * - `to` cannot be the zero address.
     * - the caller must have a balance of at least `amount`.
     */
    function transfer(address to, uint256 amount) public virtual override returns (bool) {
        address owner = _msgSender();
        _transfer(owner, to, amount);
        return true;
    }

    /**
     * @dev See {IERC20-allowance}.
     */
    function allowance(address owner, address spender) public view virtual override returns (uint256) {
        return _allowances[owner][spender];
    }

    /**
     * @dev See {IERC20-approve}.
     *
     * NOTE: If `amount` is the maximum `uint256`, the allowance is not updated on
     * `transferFrom`. This is semantically equivalent to an infinite approval.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     */
    function approve(address spender, uint256 amount) public virtual override returns (bool) {
        address owner = _msgSender();
        _approve(owner, spender, amount);
        return true;
    }

    /**
     * @dev See {IERC20-transferFrom}.
     *
     * Emits an {Approval} event indicating the updated allowance. This is not
     * required by the EIP. See the note at the beginning of {ERC20}.
     *
     * NOTE: Does not update the allowance if the current allowance
     * is the maximum `uint256`.
     *
     * Requirements:
     *
     * - `from` and `to` cannot be the zero address.
     * - `from` must have a balance of at least `amount`.
     * - the caller must have allowance for ``from``'s tokens of at least
     * `amount`.
     */
    function transferFrom(address from, address to, uint256 amount) public virtual override returns (bool) {
        address spender = _msgSender();
        _spendAllowance(from, spender, amount);
        _transfer(from, to, amount);
        return true;
    }

    /**
     * @dev Atomically increases the allowance granted to `spender` by the caller.
     *
     * This is an alternative to {approve} that can be used as a mitigation for
     * problems described in {IERC20-approve}.
     *
     * Emits an {Approval} event indicating the updated allowance.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     */
    function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
        address owner = _msgSender();
        _approve(owner, spender, allowance(owner, spender) + addedValue);
        return true;
    }

    /**
     * @dev Atomically decreases the allowance granted to `spender` by the caller.
     *
     * This is an alternative to {approve} that can be used as a mitigation for
     * problems described in {IERC20-approve}.
     *
     * Emits an {Approval} event indicating the updated allowance.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     * - `spender` must have allowance for the caller of at least
     * `subtractedValue`.
     */
    function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
        address owner = _msgSender();
        uint256 currentAllowance = allowance(owner, spender);
        require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
        unchecked {
            _approve(owner, spender, currentAllowance - subtractedValue);
        }

        return true;
    }

    /**
     * @dev Moves `amount` of tokens from `from` to `to`.
     *
     * This internal function is equivalent to {transfer}, and can be used to
     * e.g. implement automatic token fees, slashing mechanisms, etc.
     *
     * Emits a {Transfer} event.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `from` must have a balance of at least `amount`.
     */
    function _transfer(address from, address to, uint256 amount) internal virtual {
        require(from != address(0), "ERC20: transfer from the zero address");
        require(to != address(0), "ERC20: transfer to the zero address");

        _beforeTokenTransfer(from, to, amount);

        uint256 fromBalance = _balances[from];
        require(fromBalance >= amount, "ERC20: transfer amount exceeds balance");
        unchecked {
            _balances[from] = fromBalance - amount;
            // Overflow not possible: the sum of all balances is capped by totalSupply, and the sum is preserved by
            // decrementing then incrementing.
            _balances[to] += amount;
        }

        emit Transfer(from, to, amount);

        _afterTokenTransfer(from, to, amount);
    }

    /** @dev Creates `amount` tokens and assigns them to `account`, increasing
     * the total supply.
     *
     * Emits a {Transfer} event with `from` set to the zero address.
     *
     * Requirements:
     *
     * - `account` cannot be the zero address.
     */
    function _mint(address account, uint256 amount) internal virtual {
        require(account != address(0), "ERC20: mint to the zero address");

        _beforeTokenTransfer(address(0), account, amount);

        _totalSupply += amount;
        unchecked {
            // Overflow not possible: balance + amount is at most totalSupply + amount, which is checked above.
            _balances[account] += amount;
        }
        emit Transfer(address(0), account, amount);

        _afterTokenTransfer(address(0), account, amount);
    }

    /**
     * @dev Destroys `amount` tokens from `account`, reducing the
     * total supply.
     *
     * Emits a {Transfer} event with `to` set to the zero address.
     *
     * Requirements:
     *
     * - `account` cannot be the zero address.
     * - `account` must have at least `amount` tokens.
     */
    function _burn(address account, uint256 amount) internal virtual {
        require(account != address(0), "ERC20: burn from the zero address");

        _beforeTokenTransfer(account, address(0), amount);

        uint256 accountBalance = _balances[account];
        require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
        unchecked {
            _balances[account] = accountBalance - amount;
            // Overflow not possible: amount <= accountBalance <= totalSupply.
            _totalSupply -= amount;
        }

        emit Transfer(account, address(0), amount);

        _afterTokenTransfer(account, address(0), amount);
    }

    /**
     * @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.
     *
     * This internal function is equivalent to `approve`, and can be used to
     * e.g. set automatic allowances for certain subsystems, etc.
     *
     * Emits an {Approval} event.
     *
     * Requirements:
     *
     * - `owner` cannot be the zero address.
     * - `spender` cannot be the zero address.
     */
    function _approve(address owner, address spender, uint256 amount) internal virtual {
        require(owner != address(0), "ERC20: approve from the zero address");
        require(spender != address(0), "ERC20: approve to the zero address");

        _allowances[owner][spender] = amount;
        emit Approval(owner, spender, amount);
    }

    /**
     * @dev Updates `owner` s allowance for `spender` based on spent `amount`.
     *
     * Does not update the allowance amount in case of infinite allowance.
     * Revert if not enough allowance is available.
     *
     * Might emit an {Approval} event.
     */
    function _spendAllowance(address owner, address spender, uint256 amount) internal virtual {
        uint256 currentAllowance = allowance(owner, spender);
        if (currentAllowance != type(uint256).max) {
            require(currentAllowance >= amount, "ERC20: insufficient allowance");
            unchecked {
                _approve(owner, spender, currentAllowance - amount);
            }
        }
    }

    /**
     * @dev Hook that is called before any transfer of tokens. This includes
     * minting and burning.
     *
     * Calling conditions:
     *
     * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
     * will be transferred to `to`.
     * - when `from` is zero, `amount` tokens will be minted for `to`.
     * - when `to` is zero, `amount` of ``from``'s tokens will be burned.
     * - `from` and `to` are never both zero.
     *
     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
     */
    function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual {}

    /**
     * @dev Hook that is called after any transfer of tokens. This includes
     * minting and burning.
     *
     * Calling conditions:
     *
     * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
     * has been transferred to `to`.
     * - when `from` is zero, `amount` tokens have been minted for `to`.
     * - when `to` is zero, `amount` of ``from``'s tokens have been burned.
     * - `from` and `to` are never both zero.
     *
     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
     */
    function _afterTokenTransfer(address from, address to, uint256 amount) internal virtual {}
}

@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/IERC20Metadata.sol)

pragma solidity ^0.8.0;

import "../IERC20.sol";

/**
 * @dev Interface for the optional metadata functions from the ERC20 standard.
 *
 * _Available since v4.1._
 */
interface IERC20Metadata is IERC20 {
    /**
     * @dev Returns the name of the token.
     */
    function name() external view returns (string memory);

    /**
     * @dev Returns the symbol of the token.
     */
    function symbol() external view returns (string memory);

    /**
     * @dev Returns the decimals places of the token.
     */
    function decimals() external view returns (uint8);
}

@openzeppelin/contracts/token/ERC20/extensions/IERC20Permit.sol

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.4) (token/ERC20/extensions/IERC20Permit.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in
 * https://eips.ethereum.org/EIPS/eip-2612[EIP-2612].
 *
 * Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by
 * presenting a message signed by the account. By not relying on {IERC20-approve}, the token holder account doesn't
 * need to send a transaction, and thus is not required to hold Ether at all.
 *
 * ==== Security Considerations
 *
 * There are two important considerations concerning the use of `permit`. The first is that a valid permit signature
 * expresses an allowance, and it should not be assumed to convey additional meaning. In particular, it should not be
 * considered as an intention to spend the allowance in any specific way. The second is that because permits have
 * built-in replay protection and can be submitted by anyone, they can be frontrun. A protocol that uses permits should
 * take this into consideration and allow a `permit` call to fail. Combining these two aspects, a pattern that may be
 * generally recommended is:
 *
 * ```solidity
 * function doThingWithPermit(..., uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s) public {
 *     try token.permit(msg.sender, address(this), value, deadline, v, r, s) {} catch {}
 *     doThing(..., value);
 * }
 *
 * function doThing(..., uint256 value) public {
 *     token.safeTransferFrom(msg.sender, address(this), value);
 *     ...
 * }
 * ```
 *
 * Observe that: 1) `msg.sender` is used as the owner, leaving no ambiguity as to the signer intent, and 2) the use of
 * `try/catch` allows the permit to fail and makes the code tolerant to frontrunning. (See also
 * {SafeERC20-safeTransferFrom}).
 *
 * Additionally, note that smart contract wallets (such as Argent or Safe) are not able to produce permit signatures, so
 * contracts should have entry points that don't rely on permit.
 */
interface IERC20Permit {
    /**
     * @dev Sets `value` as the allowance of `spender` over ``owner``'s tokens,
     * given ``owner``'s signed approval.
     *
     * IMPORTANT: The same issues {IERC20-approve} has related to transaction
     * ordering also apply here.
     *
     * Emits an {Approval} event.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     * - `deadline` must be a timestamp in the future.
     * - `v`, `r` and `s` must be a valid `secp256k1` signature from `owner`
     * over the EIP712-formatted function arguments.
     * - the signature must use ``owner``'s current nonce (see {nonces}).
     *
     * For more information on the signature format, see the
     * https://eips.ethereum.org/EIPS/eip-2612#specification[relevant EIP
     * section].
     *
     * CAUTION: See Security Considerations above.
     */
    function permit(
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external;

    /**
     * @dev Returns the current nonce for `owner`. This value must be
     * included whenever a signature is generated for {permit}.
     *
     * Every successful call to {permit} increases ``owner``'s nonce by one. This
     * prevents a signature from being used multiple times.
     */
    function nonces(address owner) external view returns (uint256);

    /**
     * @dev Returns the domain separator used in the encoding of the signature for {permit}, as defined by {EIP712}.
     */
    // solhint-disable-next-line func-name-mixedcase
    function DOMAIN_SEPARATOR() external view returns (bytes32);
}

@openzeppelin/contracts/token/ERC20/IERC20.sol

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
    /**
     * @dev Emitted when `value` tokens are moved from one account (`from`) to
     * another (`to`).
     *
     * Note that `value` may be zero.
     */
    event Transfer(address indexed from, address indexed to, uint256 value);

    /**
     * @dev Emitted when the allowance of a `spender` for an `owner` is set by
     * a call to {approve}. `value` is the new allowance.
     */
    event Approval(address indexed owner, address indexed spender, uint256 value);

    /**
     * @dev Returns the amount of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

    /**
     * @dev Returns the amount of tokens owned by `account`.
     */
    function balanceOf(address account) external view returns (uint256);

    /**
     * @dev Moves `amount` tokens from the caller's account to `to`.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transfer(address to, uint256 amount) external returns (bool);

    /**
     * @dev Returns the remaining number of tokens that `spender` will be
     * allowed to spend on behalf of `owner` through {transferFrom}. This is
     * zero by default.
     *
     * This value changes when {approve} or {transferFrom} are called.
     */
    function allowance(address owner, address spender) external view returns (uint256);

    /**
     * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * IMPORTANT: Beware that changing an allowance with this method brings the risk
     * that someone may use both the old and the new allowance by unfortunate
     * transaction ordering. One possible solution to mitigate this race
     * condition is to first reduce the spender's allowance to 0 and set the
     * desired value afterwards:
     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
     *
     * Emits an {Approval} event.
     */
    function approve(address spender, uint256 amount) external returns (bool);

    /**
     * @dev Moves `amount` tokens from `from` to `to` using the
     * allowance mechanism. `amount` is then deducted from the caller's
     * allowance.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(address from, address to, uint256 amount) external returns (bool);
}

@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.3) (token/ERC20/utils/SafeERC20.sol)

pragma solidity ^0.8.0;

import "../IERC20.sol";
import "../extensions/IERC20Permit.sol";
import "../../../utils/Address.sol";

/**
 * @title SafeERC20
 * @dev Wrappers around ERC20 operations that throw on failure (when the token
 * contract returns false). Tokens that return no value (and instead revert or
 * throw on failure) are also supported, non-reverting calls are assumed to be
 * successful.
 * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,
 * which allows you to call the safe operations as `token.safeTransfer(...)`, etc.
 */
library SafeERC20 {
    using Address for address;

    /**
     * @dev Transfer `value` amount of `token` from the calling contract to `to`. If `token` returns no value,
     * non-reverting calls are assumed to be successful.
     */
    function safeTransfer(IERC20 token, address to, uint256 value) internal {
        _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
    }

    /**
     * @dev Transfer `value` amount of `token` from `from` to `to`, spending the approval given by `from` to the
     * calling contract. If `token` returns no value, non-reverting calls are assumed to be successful.
     */
    function safeTransferFrom(IERC20 token, address from, address to, uint256 value) internal {
        _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));
    }

    /**
     * @dev Deprecated. This function has issues similar to the ones found in
     * {IERC20-approve}, and its usage is discouraged.
     *
     * Whenever possible, use {safeIncreaseAllowance} and
     * {safeDecreaseAllowance} instead.
     */
    function safeApprove(IERC20 token, address spender, uint256 value) internal {
        // safeApprove should only be called when setting an initial allowance,
        // or when resetting it to zero. To increase and decrease it, use
        // 'safeIncreaseAllowance' and 'safeDecreaseAllowance'
        require(
            (value == 0) || (token.allowance(address(this), spender) == 0),
            "SafeERC20: approve from non-zero to non-zero allowance"
        );
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));
    }

    /**
     * @dev Increase the calling contract's allowance toward `spender` by `value`. If `token` returns no value,
     * non-reverting calls are assumed to be successful.
     */
    function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal {
        uint256 oldAllowance = token.allowance(address(this), spender);
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, oldAllowance + value));
    }

    /**
     * @dev Decrease the calling contract's allowance toward `spender` by `value`. If `token` returns no value,
     * non-reverting calls are assumed to be successful.
     */
    function safeDecreaseAllowance(IERC20 token, address spender, uint256 value) internal {
        unchecked {
            uint256 oldAllowance = token.allowance(address(this), spender);
            require(oldAllowance >= value, "SafeERC20: decreased allowance below zero");
            _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, oldAllowance - value));
        }
    }

    /**
     * @dev Set the calling contract's allowance toward `spender` to `value`. If `token` returns no value,
     * non-reverting calls are assumed to be successful. Meant to be used with tokens that require the approval
     * to be set to zero before setting it to a non-zero value, such as USDT.
     */
    function forceApprove(IERC20 token, address spender, uint256 value) internal {
        bytes memory approvalCall = abi.encodeWithSelector(token.approve.selector, spender, value);

        if (!_callOptionalReturnBool(token, approvalCall)) {
            _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, 0));
            _callOptionalReturn(token, approvalCall);
        }
    }

    /**
     * @dev Use a ERC-2612 signature to set the `owner` approval toward `spender` on `token`.
     * Revert on invalid signature.
     */
    function safePermit(
        IERC20Permit token,
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) internal {
        uint256 nonceBefore = token.nonces(owner);
        token.permit(owner, spender, value, deadline, v, r, s);
        uint256 nonceAfter = token.nonces(owner);
        require(nonceAfter == nonceBefore + 1, "SafeERC20: permit did not succeed");
    }

    /**
     * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
     * on the return value: the return value is optional (but if data is returned, it must not be false).
     * @param token The token targeted by the call.
     * @param data The call data (encoded using abi.encode or one of its variants).
     */
    function _callOptionalReturn(IERC20 token, bytes memory data) private {
        // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
        // we're implementing it ourselves. We use {Address-functionCall} to perform this call, which verifies that
        // the target address contains contract code and also asserts for success in the low-level call.

        bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed");
        require(returndata.length == 0 || abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
    }

    /**
     * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
     * on the return value: the return value is optional (but if data is returned, it must not be false).
     * @param token The token targeted by the call.
     * @param data The call data (encoded using abi.encode or one of its variants).
     *
     * This is a variant of {_callOptionalReturn} that silents catches all reverts and returns a bool instead.
     */
    function _callOptionalReturnBool(IERC20 token, bytes memory data) private returns (bool) {
        // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
        // we're implementing it ourselves. We cannot use {Address-functionCall} here since this should return false
        // and not revert is the subcall reverts.

        (bool success, bytes memory returndata) = address(token).call(data);
        return
            success && (returndata.length == 0 || abi.decode(returndata, (bool))) && Address.isContract(address(token));
    }
}

@openzeppelin/contracts/token/ERC721/ERC721.sol

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC721/ERC721.sol)

pragma solidity ^0.8.0;

import "./IERC721.sol";
import "./IERC721Receiver.sol";
import "./extensions/IERC721Metadata.sol";
import "../../utils/Address.sol";
import "../../utils/Context.sol";
import "../../utils/Strings.sol";
import "../../utils/introspection/ERC165.sol";

/**
 * @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including
 * the Metadata extension, but not including the Enumerable extension, which is available separately as
 * {ERC721Enumerable}.
 */
contract ERC721 is Context, ERC165, IERC721, IERC721Metadata {
    using Address for address;
    using Strings for uint256;

    // Token name
    string private _name;

    // Token symbol
    string private _symbol;

    // Mapping from token ID to owner address
    mapping(uint256 => address) private _owners;

    // Mapping owner address to token count
    mapping(address => uint256) private _balances;

    // Mapping from token ID to approved address
    mapping(uint256 => address) private _tokenApprovals;

    // Mapping from owner to operator approvals
    mapping(address => mapping(address => bool)) private _operatorApprovals;

    /**
     * @dev Initializes the contract by setting a `name` and a `symbol` to the token collection.
     */
    constructor(string memory name_, string memory symbol_) {
        _name = name_;
        _symbol = symbol_;
    }

    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) {
        return
            interfaceId == type(IERC721).interfaceId ||
            interfaceId == type(IERC721Metadata).interfaceId ||
            super.supportsInterface(interfaceId);
    }

    /**
     * @dev See {IERC721-balanceOf}.
     */
    function balanceOf(address owner) public view virtual override returns (uint256) {
        require(owner != address(0), "ERC721: address zero is not a valid owner");
        return _balances[owner];
    }

    /**
     * @dev See {IERC721-ownerOf}.
     */
    function ownerOf(uint256 tokenId) public view virtual override returns (address) {
        address owner = _ownerOf(tokenId);
        require(owner != address(0), "ERC721: invalid token ID");
        return owner;
    }

    /**
     * @dev See {IERC721Metadata-name}.
     */
    function name() public view virtual override returns (string memory) {
        return _name;
    }

    /**
     * @dev See {IERC721Metadata-symbol}.
     */
    function symbol() public view virtual override returns (string memory) {
        return _symbol;
    }

    /**
     * @dev See {IERC721Metadata-tokenURI}.
     */
    function tokenURI(uint256 tokenId) public view virtual override returns (string memory) {
        _requireMinted(tokenId);

        string memory baseURI = _baseURI();
        return bytes(baseURI).length > 0 ? string(abi.encodePacked(baseURI, tokenId.toString())) : "";
    }

    /**
     * @dev Base URI for computing {tokenURI}. If set, the resulting URI for each
     * token will be the concatenation of the `baseURI` and the `tokenId`. Empty
     * by default, can be overridden in child contracts.
     */
    function _baseURI() internal view virtual returns (string memory) {
        return "";
    }

    /**
     * @dev See {IERC721-approve}.
     */
    function approve(address to, uint256 tokenId) public virtual override {
        address owner = ERC721.ownerOf(tokenId);
        require(to != owner, "ERC721: approval to current owner");

        require(
            _msgSender() == owner || isApprovedForAll(owner, _msgSender()),
            "ERC721: approve caller is not token owner or approved for all"
        );

        _approve(to, tokenId);
    }

    /**
     * @dev See {IERC721-getApproved}.
     */
    function getApproved(uint256 tokenId) public view virtual override returns (address) {
        _requireMinted(tokenId);

        return _tokenApprovals[tokenId];
    }

    /**
     * @dev See {IERC721-setApprovalForAll}.
     */
    function setApprovalForAll(address operator, bool approved) public virtual override {
        _setApprovalForAll(_msgSender(), operator, approved);
    }

    /**
     * @dev See {IERC721-isApprovedForAll}.
     */
    function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) {
        return _operatorApprovals[owner][operator];
    }

    /**
     * @dev See {IERC721-transferFrom}.
     */
    function transferFrom(address from, address to, uint256 tokenId) public virtual override {
        //solhint-disable-next-line max-line-length
        require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: caller is not token owner or approved");

        _transfer(from, to, tokenId);
    }

    /**
     * @dev See {IERC721-safeTransferFrom}.
     */
    function safeTransferFrom(address from, address to, uint256 tokenId) public virtual override {
        safeTransferFrom(from, to, tokenId, "");
    }

    /**
     * @dev See {IERC721-safeTransferFrom}.
     */
    function safeTransferFrom(address from, address to, uint256 tokenId, bytes memory data) public virtual override {
        require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: caller is not token owner or approved");
        _safeTransfer(from, to, tokenId, data);
    }

    /**
     * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
     * are aware of the ERC721 protocol to prevent tokens from being forever locked.
     *
     * `data` is additional data, it has no specified format and it is sent in call to `to`.
     *
     * This internal function is equivalent to {safeTransferFrom}, and can be used to e.g.
     * implement alternative mechanisms to perform token transfer, such as signature-based.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must exist and be owned by `from`.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function _safeTransfer(address from, address to, uint256 tokenId, bytes memory data) internal virtual {
        _transfer(from, to, tokenId);
        require(_checkOnERC721Received(from, to, tokenId, data), "ERC721: transfer to non ERC721Receiver implementer");
    }

    /**
     * @dev Returns the owner of the `tokenId`. Does NOT revert if token doesn't exist
     */
    function _ownerOf(uint256 tokenId) internal view virtual returns (address) {
        return _owners[tokenId];
    }

    /**
     * @dev Returns whether `tokenId` exists.
     *
     * Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.
     *
     * Tokens start existing when they are minted (`_mint`),
     * and stop existing when they are burned (`_burn`).
     */
    function _exists(uint256 tokenId) internal view virtual returns (bool) {
        return _ownerOf(tokenId) != address(0);
    }

    /**
     * @dev Returns whether `spender` is allowed to manage `tokenId`.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function _isApprovedOrOwner(address spender, uint256 tokenId) internal view virtual returns (bool) {
        address owner = ERC721.ownerOf(tokenId);
        return (spender == owner || isApprovedForAll(owner, spender) || getApproved(tokenId) == spender);
    }

    /**
     * @dev Safely mints `tokenId` and transfers it to `to`.
     *
     * Requirements:
     *
     * - `tokenId` must not exist.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function _safeMint(address to, uint256 tokenId) internal virtual {
        _safeMint(to, tokenId, "");
    }

    /**
     * @dev Same as {xref-ERC721-_safeMint-address-uint256-}[`_safeMint`], with an additional `data` parameter which is
     * forwarded in {IERC721Receiver-onERC721Received} to contract recipients.
     */
    function _safeMint(address to, uint256 tokenId, bytes memory data) internal virtual {
        _mint(to, tokenId);
        require(
            _checkOnERC721Received(address(0), to, tokenId, data),
            "ERC721: transfer to non ERC721Receiver implementer"
        );
    }

    /**
     * @dev Mints `tokenId` and transfers it to `to`.
     *
     * WARNING: Usage of this method is discouraged, use {_safeMint} whenever possible
     *
     * Requirements:
     *
     * - `tokenId` must not exist.
     * - `to` cannot be the zero address.
     *
     * Emits a {Transfer} event.
     */
    function _mint(address to, uint256 tokenId) internal virtual {
        require(to != address(0), "ERC721: mint to the zero address");
        require(!_exists(tokenId), "ERC721: token already minted");

        _beforeTokenTransfer(address(0), to, tokenId, 1);

        // Check that tokenId was not minted by `_beforeTokenTransfer` hook
        require(!_exists(tokenId), "ERC721: token already minted");

        unchecked {
            // Will not overflow unless all 2**256 token ids are minted to the same owner.
            // Given that tokens are minted one by one, it is impossible in practice that
            // this ever happens. Might change if we allow batch minting.
            // The ERC fails to describe this case.
            _balances[to] += 1;
        }

        _owners[tokenId] = to;

        emit Transfer(address(0), to, tokenId);

        _afterTokenTransfer(address(0), to, tokenId, 1);
    }

    /**
     * @dev Destroys `tokenId`.
     * The approval is cleared when the token is burned.
     * This is an internal function that does not check if the sender is authorized to operate on the token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     *
     * Emits a {Transfer} event.
     */
    function _burn(uint256 tokenId) internal virtual {
        address owner = ERC721.ownerOf(tokenId);

        _beforeTokenTransfer(owner, address(0), tokenId, 1);

        // Update ownership in case tokenId was transferred by `_beforeTokenTransfer` hook
        owner = ERC721.ownerOf(tokenId);

        // Clear approvals
        delete _tokenApprovals[tokenId];

        unchecked {
            // Cannot overflow, as that would require more tokens to be burned/transferred
            // out than the owner initially received through minting and transferring in.
            _balances[owner] -= 1;
        }
        delete _owners[tokenId];

        emit Transfer(owner, address(0), tokenId);

        _afterTokenTransfer(owner, address(0), tokenId, 1);
    }

    /**
     * @dev Transfers `tokenId` from `from` to `to`.
     *  As opposed to {transferFrom}, this imposes no restrictions on msg.sender.
     *
     * Requirements:
     *
     * - `to` cannot be the zero address.
     * - `tokenId` token must be owned by `from`.
     *
     * Emits a {Transfer} event.
     */
    function _transfer(address from, address to, uint256 tokenId) internal virtual {
        require(ERC721.ownerOf(tokenId) == from, "ERC721: transfer from incorrect owner");
        require(to != address(0), "ERC721: transfer to the zero address");

        _beforeTokenTransfer(from, to, tokenId, 1);

        // Check that tokenId was not transferred by `_beforeTokenTransfer` hook
        require(ERC721.ownerOf(tokenId) == from, "ERC721: transfer from incorrect owner");

        // Clear approvals from the previous owner
        delete _tokenApprovals[tokenId];

        unchecked {
            // `_balances[from]` cannot overflow for the same reason as described in `_burn`:
            // `from`'s balance is the number of token held, which is at least one before the current
            // transfer.
            // `_balances[to]` could overflow in the conditions described in `_mint`. That would require
            // all 2**256 token ids to be minted, which in practice is impossible.
            _balances[from] -= 1;
            _balances[to] += 1;
        }
        _owners[tokenId] = to;

        emit Transfer(from, to, tokenId);

        _afterTokenTransfer(from, to, tokenId, 1);
    }

    /**
     * @dev Approve `to` to operate on `tokenId`
     *
     * Emits an {Approval} event.
     */
    function _approve(address to, uint256 tokenId) internal virtual {
        _tokenApprovals[tokenId] = to;
        emit Approval(ERC721.ownerOf(tokenId), to, tokenId);
    }

    /**
     * @dev Approve `operator` to operate on all of `owner` tokens
     *
     * Emits an {ApprovalForAll} event.
     */
    function _setApprovalForAll(address owner, address operator, bool approved) internal virtual {
        require(owner != operator, "ERC721: approve to caller");
        _operatorApprovals[owner][operator] = approved;
        emit ApprovalForAll(owner, operator, approved);
    }

    /**
     * @dev Reverts if the `tokenId` has not been minted yet.
     */
    function _requireMinted(uint256 tokenId) internal view virtual {
        require(_exists(tokenId), "ERC721: invalid token ID");
    }

    /**
     * @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address.
     * The call is not executed if the target address is not a contract.
     *
     * @param from address representing the previous owner of the given token ID
     * @param to target address that will receive the tokens
     * @param tokenId uint256 ID of the token to be transferred
     * @param data bytes optional data to send along with the call
     * @return bool whether the call correctly returned the expected magic value
     */
    function _checkOnERC721Received(
        address from,
        address to,
        uint256 tokenId,
        bytes memory data
    ) private returns (bool) {
        if (to.isContract()) {
            try IERC721Receiver(to).onERC721Received(_msgSender(), from, tokenId, data) returns (bytes4 retval) {
                return retval == IERC721Receiver.onERC721Received.selector;
            } catch (bytes memory reason) {
                if (reason.length == 0) {
                    revert("ERC721: transfer to non ERC721Receiver implementer");
                } else {
                    /// @solidity memory-safe-assembly
                    assembly {
                        revert(add(32, reason), mload(reason))
                    }
                }
            }
        } else {
            return true;
        }
    }

    /**
     * @dev Hook that is called before any token transfer. This includes minting and burning. If {ERC721Consecutive} is
     * used, the hook may be called as part of a consecutive (batch) mint, as indicated by `batchSize` greater than 1.
     *
     * Calling conditions:
     *
     * - When `from` and `to` are both non-zero, ``from``'s tokens will be transferred to `to`.
     * - When `from` is zero, the tokens will be minted for `to`.
     * - When `to` is zero, ``from``'s tokens will be burned.
     * - `from` and `to` are never both zero.
     * - `batchSize` is non-zero.
     *
     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
     */
    function _beforeTokenTransfer(address from, address to, uint256 firstTokenId, uint256 batchSize) internal virtual {}

    /**
     * @dev Hook that is called after any token transfer. This includes minting and burning. If {ERC721Consecutive} is
     * used, the hook may be called as part of a consecutive (batch) mint, as indicated by `batchSize` greater than 1.
     *
     * Calling conditions:
     *
     * - When `from` and `to` are both non-zero, ``from``'s tokens were transferred to `to`.
     * - When `from` is zero, the tokens were minted for `to`.
     * - When `to` is zero, ``from``'s tokens were burned.
     * - `from` and `to` are never both zero.
     * - `batchSize` is non-zero.
     *
     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
     */
    function _afterTokenTransfer(address from, address to, uint256 firstTokenId, uint256 batchSize) internal virtual {}

    /**
     * @dev Unsafe write access to the balances, used by extensions that "mint" tokens using an {ownerOf} override.
     *
     * WARNING: Anyone calling this MUST ensure that the balances remain consistent with the ownership. The invariant
     * being that for any address `a` the value returned by `balanceOf(a)` must be equal to the number of tokens such
     * that `ownerOf(tokenId)` is `a`.
     */
    // solhint-disable-next-line func-name-mixedcase
    function __unsafe_increaseBalance(address account, uint256 amount) internal {
        _balances[account] += amount;
    }
}

@openzeppelin/contracts/token/ERC721/extensions/IERC721Metadata.sol

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/IERC721Metadata.sol)

pragma solidity ^0.8.0;

import "../IERC721.sol";

/**
 * @title ERC-721 Non-Fungible Token Standard, optional metadata extension
 * @dev See https://eips.ethereum.org/EIPS/eip-721
 */
interface IERC721Metadata is IERC721 {
    /**
     * @dev Returns the token collection name.
     */
    function name() external view returns (string memory);

    /**
     * @dev Returns the token collection symbol.
     */
    function symbol() external view returns (string memory);

    /**
     * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token.
     */
    function tokenURI(uint256 tokenId) external view returns (string memory);
}

@openzeppelin/contracts/token/ERC721/IERC721.sol

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC721/IERC721.sol)

pragma solidity ^0.8.0;

import "../../utils/introspection/IERC165.sol";

/**
 * @dev Required interface of an ERC721 compliant contract.
 */
interface IERC721 is IERC165 {
    /**
     * @dev Emitted when `tokenId` token is transferred from `from` to `to`.
     */
    event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);

    /**
     * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.
     */
    event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);

    /**
     * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.
     */
    event ApprovalForAll(address indexed owner, address indexed operator, bool approved);

    /**
     * @dev Returns the number of tokens in ``owner``'s account.
     */
    function balanceOf(address owner) external view returns (uint256 balance);

    /**
     * @dev Returns the owner of the `tokenId` token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function ownerOf(uint256 tokenId) external view returns (address owner);

    /**
     * @dev Safely transfers `tokenId` token from `from` to `to`.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must exist and be owned by `from`.
     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function safeTransferFrom(address from, address to, uint256 tokenId, bytes calldata data) external;

    /**
     * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
     * are aware of the ERC721 protocol to prevent tokens from being forever locked.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must exist and be owned by `from`.
     * - If the caller is not `from`, it must have been allowed to move this token by either {approve} or {setApprovalForAll}.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function safeTransferFrom(address from, address to, uint256 tokenId) external;

    /**
     * @dev Transfers `tokenId` token from `from` to `to`.
     *
     * WARNING: Note that the caller is responsible to confirm that the recipient is capable of receiving ERC721
     * or else they may be permanently lost. Usage of {safeTransferFrom} prevents loss, though the caller must
     * understand this adds an external call which potentially creates a reentrancy vulnerability.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must be owned by `from`.
     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(address from, address to, uint256 tokenId) external;

    /**
     * @dev Gives permission to `to` to transfer `tokenId` token to another account.
     * The approval is cleared when the token is transferred.
     *
     * Only a single account can be approved at a time, so approving the zero address clears previous approvals.
     *
     * Requirements:
     *
     * - The caller must own the token or be an approved operator.
     * - `tokenId` must exist.
     *
     * Emits an {Approval} event.
     */
    function approve(address to, uint256 tokenId) external;

    /**
     * @dev Approve or remove `operator` as an operator for the caller.
     * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.
     *
     * Requirements:
     *
     * - The `operator` cannot be the caller.
     *
     * Emits an {ApprovalForAll} event.
     */
    function setApprovalForAll(address operator, bool approved) external;

    /**
     * @dev Returns the account approved for `tokenId` token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function getApproved(uint256 tokenId) external view returns (address operator);

    /**
     * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.
     *
     * See {setApprovalForAll}
     */
    function isApprovedForAll(address owner, address operator) external view returns (bool);
}

@openzeppelin/contracts/token/ERC721/IERC721Receiver.sol

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC721/IERC721Receiver.sol)

pragma solidity ^0.8.0;

/**
 * @title ERC721 token receiver interface
 * @dev Interface for any contract that wants to support safeTransfers
 * from ERC721 asset contracts.
 */
interface IERC721Receiver {
    /**
     * @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom}
     * by `operator` from `from`, this function is called.
     *
     * It must return its Solidity selector to confirm the token transfer.
     * If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted.
     *
     * The selector can be obtained in Solidity with `IERC721Receiver.onERC721Received.selector`.
     */
    function onERC721Received(
        address operator,
        address from,
        uint256 tokenId,
        bytes calldata data
    ) external returns (bytes4);
}

@openzeppelin/contracts/utils/Address.sol

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (utils/Address.sol)

pragma solidity ^0.8.1;

/**
 * @dev Collection of functions related to the address type
 */
library Address {
    /**
     * @dev Returns true if `account` is a contract.
     *
     * [IMPORTANT]
     * ====
     * It is unsafe to assume that an address for which this function returns
     * false is an externally-owned account (EOA) and not a contract.
     *
     * Among others, `isContract` will return false for the following
     * types of addresses:
     *
     *  - an externally-owned account
     *  - a contract in construction
     *  - an address where a contract will be created
     *  - an address where a contract lived, but was destroyed
     *
     * Furthermore, `isContract` will also return true if the target contract within
     * the same transaction is already scheduled for destruction by `SELFDESTRUCT`,
     * which only has an effect at the end of a transaction.
     * ====
     *
     * [IMPORTANT]
     * ====
     * You shouldn't rely on `isContract` to protect against flash loan attacks!
     *
     * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
     * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
     * constructor.
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // This method relies on extcodesize/address.code.length, which returns 0
        // for contracts in construction, since the code is only stored at the end
        // of the constructor execution.

        return account.code.length > 0;
    }

    /**
     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
     * `recipient`, forwarding all available gas and reverting on errors.
     *
     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
     * of certain opcodes, possibly making contracts go over the 2300 gas limit
     * imposed by `transfer`, making them unable to receive funds via
     * `transfer`. {sendValue} removes this limitation.
     *
     * https://consensys.net/diligence/blog/2019/09/stop-using-soliditys-transfer-now/[Learn more].
     *
     * IMPORTANT: because control is transferred to `recipient`, care must be
     * taken to not create reentrancy vulnerabilities. Consider using
     * {ReentrancyGuard} or the
     * https://solidity.readthedocs.io/en/v0.8.0/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
     */
    function sendValue(address payable recipient, uint256 amount) internal {
        require(address(this).balance >= amount, "Address: insufficient balance");

        (bool success, ) = recipient.call{value: amount}("");
        require(success, "Address: unable to send value, recipient may have reverted");
    }

    /**
     * @dev Performs a Solidity function call using a low level `call`. A
     * plain `call` is an unsafe replacement for a function call: use this
     * function instead.
     *
     * If `target` reverts with a revert reason, it is bubbled up by this
     * function (like regular Solidity function calls).
     *
     * Returns the raw returned data. To convert to the expected return value,
     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
     *
     * Requirements:
     *
     * - `target` must be a contract.
     * - calling `target` with `data` must not revert.
     *
     * _Available since v3.1._
     */
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0, "Address: low-level call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
     * `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but also transferring `value` wei to `target`.
     *
     * Requirements:
     *
     * - the calling contract must have an ETH balance of at least `value`.
     * - the called Solidity function must be `payable`.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
        return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
    }

    /**
     * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
     * with `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(
        address target,
        bytes memory data,
        uint256 value,
        string memory errorMessage
    ) internal returns (bytes memory) {
        require(address(this).balance >= value, "Address: insufficient balance for call");
        (bool success, bytes memory returndata) = target.call{value: value}(data);
        return verifyCallResultFromTarget(target, success, returndata, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
        return functionStaticCall(target, data, "Address: low-level static call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal view returns (bytes memory) {
        (bool success, bytes memory returndata) = target.staticcall(data);
        return verifyCallResultFromTarget(target, success, returndata, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionDelegateCall(target, data, "Address: low-level delegate call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        (bool success, bytes memory returndata) = target.delegatecall(data);
        return verifyCallResultFromTarget(target, success, returndata, errorMessage);
    }

    /**
     * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling
     * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.
     *
     * _Available since v4.8._
     */
    function verifyCallResultFromTarget(
        address target,
        bool success,
        bytes memory returndata,
        string memory errorMessage
    ) internal view returns (bytes memory) {
        if (success) {
            if (returndata.length == 0) {
                // only check isContract if the call was successful and the return data is empty
                // otherwise we already know that it was a contract
                require(isContract(target), "Address: call to non-contract");
            }
            return returndata;
        } else {
            _revert(returndata, errorMessage);
        }
    }

    /**
     * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the
     * revert reason or using the provided one.
     *
     * _Available since v4.3._
     */
    function verifyCallResult(
        bool success,
        bytes memory returndata,
        string memory errorMessage
    ) internal pure returns (bytes memory) {
        if (success) {
            return returndata;
        } else {
            _revert(returndata, errorMessage);
        }
    }

    function _revert(bytes memory returndata, string memory errorMessage) private pure {
        // Look for revert reason and bubble it up if present
        if (returndata.length > 0) {
            // The easiest way to bubble the revert reason is using memory via assembly
            /// @solidity memory-safe-assembly
            assembly {
                let returndata_size := mload(returndata)
                revert(add(32, returndata), returndata_size)
            }
        } else {
            revert(errorMessage);
        }
    }
}

@openzeppelin/contracts/utils/Context.sol

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.4) (utils/Context.sol)

pragma solidity ^0.8.0;

/**
 * @dev Provides information about the current execution context, including the
 * sender of the transaction and its data. While these are generally available
 * via msg.sender and msg.data, they should not be accessed in such a direct
 * manner, since when dealing with meta-transactions the account sending and
 * paying for execution may not be the actual sender (as far as an application
 * is concerned).
 *
 * This contract is only required for intermediate, library-like contracts.
 */
abstract contract Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes calldata) {
        return msg.data;
    }

    function _contextSuffixLength() internal view virtual returns (uint256) {
        return 0;
    }
}

@openzeppelin/contracts/utils/cryptography/ECDSA.sol

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (utils/cryptography/ECDSA.sol)

pragma solidity ^0.8.0;

import "../Strings.sol";

/**
 * @dev Elliptic Curve Digital Signature Algorithm (ECDSA) operations.
 *
 * These functions can be used to verify that a message was signed by the holder
 * of the private keys of a given address.
 */
library ECDSA {
    enum RecoverError {
        NoError,
        InvalidSignature,
        InvalidSignatureLength,
        InvalidSignatureS,
        InvalidSignatureV // Deprecated in v4.8
    }

    function _throwError(RecoverError error) private pure {
        if (error == RecoverError.NoError) {
            return; // no error: do nothing
        } else if (error == RecoverError.InvalidSignature) {
            revert("ECDSA: invalid signature");
        } else if (error == RecoverError.InvalidSignatureLength) {
            revert("ECDSA: invalid signature length");
        } else if (error == RecoverError.InvalidSignatureS) {
            revert("ECDSA: invalid signature 's' value");
        }
    }

    /**
     * @dev Returns the address that signed a hashed message (`hash`) with
     * `signature` or error string. This address can then be used for verification purposes.
     *
     * The `ecrecover` EVM opcode allows for malleable (non-unique) signatures:
     * this function rejects them by requiring the `s` value to be in the lower
     * half order, and the `v` value to be either 27 or 28.
     *
     * IMPORTANT: `hash` _must_ be the result of a hash operation for the
     * verification to be secure: it is possible to craft signatures that
     * recover to arbitrary addresses for non-hashed data. A safe way to ensure
     * this is by receiving a hash of the original message (which may otherwise
     * be too long), and then calling {toEthSignedMessageHash} on it.
     *
     * Documentation for signature generation:
     * - with https://web3js.readthedocs.io/en/v1.3.4/web3-eth-accounts.html#sign[Web3.js]
     * - with https://docs.ethers.io/v5/api/signer/#Signer-signMessage[ethers]
     *
     * _Available since v4.3._
     */
    function tryRecover(bytes32 hash, bytes memory signature) internal pure returns (address, RecoverError) {
        if (signature.length == 65) {
            bytes32 r;
            bytes32 s;
            uint8 v;
            // ecrecover takes the signature parameters, and the only way to get them
            // currently is to use assembly.
            /// @solidity memory-safe-assembly
            assembly {
                r := mload(add(signature, 0x20))
                s := mload(add(signature, 0x40))
                v := byte(0, mload(add(signature, 0x60)))
            }
            return tryRecover(hash, v, r, s);
        } else {
            return (address(0), RecoverError.InvalidSignatureLength);
        }
    }

    /**
     * @dev Returns the address that signed a hashed message (`hash`) with
     * `signature`. This address can then be used for verification purposes.
     *
     * The `ecrecover` EVM opcode allows for malleable (non-unique) signatures:
     * this function rejects them by requiring the `s` value to be in the lower
     * half order, and the `v` value to be either 27 or 28.
     *
     * IMPORTANT: `hash` _must_ be the result of a hash operation for the
     * verification to be secure: it is possible to craft signatures that
     * recover to arbitrary addresses for non-hashed data. A safe way to ensure
     * this is by receiving a hash of the original message (which may otherwise
     * be too long), and then calling {toEthSignedMessageHash} on it.
     */
    function recover(bytes32 hash, bytes memory signature) internal pure returns (address) {
        (address recovered, RecoverError error) = tryRecover(hash, signature);
        _throwError(error);
        return recovered;
    }

    /**
     * @dev Overload of {ECDSA-tryRecover} that receives the `r` and `vs` short-signature fields separately.
     *
     * See https://eips.ethereum.org/EIPS/eip-2098[EIP-2098 short signatures]
     *
     * _Available since v4.3._
     */
    function tryRecover(bytes32 hash, bytes32 r, bytes32 vs) internal pure returns (address, RecoverError) {
        bytes32 s = vs & bytes32(0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff);
        uint8 v = uint8((uint256(vs) >> 255) + 27);
        return tryRecover(hash, v, r, s);
    }

    /**
     * @dev Overload of {ECDSA-recover} that receives the `r and `vs` short-signature fields separately.
     *
     * _Available since v4.2._
     */
    function recover(bytes32 hash, bytes32 r, bytes32 vs) internal pure returns (address) {
        (address recovered, RecoverError error) = tryRecover(hash, r, vs);
        _throwError(error);
        return recovered;
    }

    /**
     * @dev Overload of {ECDSA-tryRecover} that receives the `v`,
     * `r` and `s` signature fields separately.
     *
     * _Available since v4.3._
     */
    function tryRecover(bytes32 hash, uint8 v, bytes32 r, bytes32 s) internal pure returns (address, RecoverError) {
        // EIP-2 still allows signature malleability for ecrecover(). Remove this possibility and make the signature
        // unique. Appendix F in the Ethereum Yellow paper (https://ethereum.github.io/yellowpaper/paper.pdf), defines
        // the valid range for s in (301): 0 < s < secp256k1n ÷ 2 + 1, and for v in (302): v ∈ {27, 28}. Most
        // signatures from current libraries generate a unique signature with an s-value in the lower half order.
        //
        // If your library generates malleable signatures, such as s-values in the upper range, calculate a new s-value
        // with 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141 - s1 and flip v from 27 to 28 or
        // vice versa. If your library also generates signatures with 0/1 for v instead 27/28, add 27 to v to accept
        // these malleable signatures as well.
        if (uint256(s) > 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF5D576E7357A4501DDFE92F46681B20A0) {
            return (address(0), RecoverError.InvalidSignatureS);
        }

        // If the signature is valid (and not malleable), return the signer address
        address signer = ecrecover(hash, v, r, s);
        if (signer == address(0)) {
            return (address(0), RecoverError.InvalidSignature);
        }

        return (signer, RecoverError.NoError);
    }

    /**
     * @dev Overload of {ECDSA-recover} that receives the `v`,
     * `r` and `s` signature fields separately.
     */
    function recover(bytes32 hash, uint8 v, bytes32 r, bytes32 s) internal pure returns (address) {
        (address recovered, RecoverError error) = tryRecover(hash, v, r, s);
        _throwError(error);
        return recovered;
    }

    /**
     * @dev Returns an Ethereum Signed Message, created from a `hash`. This
     * produces hash corresponding to the one signed with the
     * https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`]
     * JSON-RPC method as part of EIP-191.
     *
     * See {recover}.
     */
    function toEthSignedMessageHash(bytes32 hash) internal pure returns (bytes32 message) {
        // 32 is the length in bytes of hash,
        // enforced by the type signature above
        /// @solidity memory-safe-assembly
        assembly {
            mstore(0x00, "\x19Ethereum Signed Message:\n32")
            mstore(0x1c, hash)
            message := keccak256(0x00, 0x3c)
        }
    }

    /**
     * @dev Returns an Ethereum Signed Message, created from `s`. This
     * produces hash corresponding to the one signed with the
     * https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`]
     * JSON-RPC method as part of EIP-191.
     *
     * See {recover}.
     */
    function toEthSignedMessageHash(bytes memory s) internal pure returns (bytes32) {
        return keccak256(abi.encodePacked("\x19Ethereum Signed Message:\n", Strings.toString(s.length), s));
    }

    /**
     * @dev Returns an Ethereum Signed Typed Data, created from a
     * `domainSeparator` and a `structHash`. This produces hash corresponding
     * to the one signed with the
     * https://eips.ethereum.org/EIPS/eip-712[`eth_signTypedData`]
     * JSON-RPC method as part of EIP-712.
     *
     * See {recover}.
     */
    function toTypedDataHash(bytes32 domainSeparator, bytes32 structHash) internal pure returns (bytes32 data) {
        /// @solidity memory-safe-assembly
        assembly {
            let ptr := mload(0x40)
            mstore(ptr, "\x19\x01")
            mstore(add(ptr, 0x02), domainSeparator)
            mstore(add(ptr, 0x22), structHash)
            data := keccak256(ptr, 0x42)
        }
    }

    /**
     * @dev Returns an Ethereum Signed Data with intended validator, created from a
     * `validator` and `data` according to the version 0 of EIP-191.
     *
     * See {recover}.
     */
    function toDataWithIntendedValidatorHash(address validator, bytes memory data) internal pure returns (bytes32) {
        return keccak256(abi.encodePacked("\x19\x00", validator, data));
    }
}

@openzeppelin/contracts/utils/cryptography/EIP712.sol

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (utils/cryptography/EIP712.sol)

pragma solidity ^0.8.8;

import "./ECDSA.sol";
import "../ShortStrings.sol";
import "../../interfaces/IERC5267.sol";

/**
 * @dev https://eips.ethereum.org/EIPS/eip-712[EIP 712] is a standard for hashing and signing of typed structured data.
 *
 * The encoding specified in the EIP is very generic, and such a generic implementation in Solidity is not feasible,
 * thus this contract does not implement the encoding itself. Protocols need to implement the type-specific encoding
 * they need in their contracts using a combination of `abi.encode` and `keccak256`.
 *
 * This contract implements the EIP 712 domain separator ({_domainSeparatorV4}) that is used as part of the encoding
 * scheme, and the final step of the encoding to obtain the message digest that is then signed via ECDSA
 * ({_hashTypedDataV4}).
 *
 * The implementation of the domain separator was designed to be as efficient as possible while still properly updating
 * the chain id to protect against replay attacks on an eventual fork of the chain.
 *
 * NOTE: This contract implements the version of the encoding known as "v4", as implemented by the JSON RPC method
 * https://docs.metamask.io/guide/signing-data.html[`eth_signTypedDataV4` in MetaMask].
 *
 * NOTE: In the upgradeable version of this contract, the cached values will correspond to the address, and the domain
 * separator of the implementation contract. This will cause the `_domainSeparatorV4` function to always rebuild the
 * separator from the immutable values, which is cheaper than accessing a cached version in cold storage.
 *
 * _Available since v3.4._
 *
 * @custom:oz-upgrades-unsafe-allow state-variable-immutable state-variable-assignment
 */
abstract contract EIP712 is IERC5267 {
    using ShortStrings for *;

    bytes32 private constant _TYPE_HASH =
        keccak256("EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)");

    // Cache the domain separator as an immutable value, but also store the chain id that it corresponds to, in order to
    // invalidate the cached domain separator if the chain id changes.
    bytes32 private immutable _cachedDomainSeparator;
    uint256 private immutable _cachedChainId;
    address private immutable _cachedThis;

    bytes32 private immutable _hashedName;
    bytes32 private immutable _hashedVersion;

    ShortString private immutable _name;
    ShortString private immutable _version;
    string private _nameFallback;
    string private _versionFallback;

    /**
     * @dev Initializes the domain separator and parameter caches.
     *
     * The meaning of `name` and `version` is specified in
     * https://eips.ethereum.org/EIPS/eip-712#definition-of-domainseparator[EIP 712]:
     *
     * - `name`: the user readable name of the signing domain, i.e. the name of the DApp or the protocol.
     * - `version`: the current major version of the signing domain.
     *
     * NOTE: These parameters cannot be changed except through a xref:learn::upgrading-smart-contracts.adoc[smart
     * contract upgrade].
     */
    constructor(string memory name, string memory version) {
        _name = name.toShortStringWithFallback(_nameFallback);
        _version = version.toShortStringWithFallback(_versionFallback);
        _hashedName = keccak256(bytes(name));
        _hashedVersion = keccak256(bytes(version));

        _cachedChainId = block.chainid;
        _cachedDomainSeparator = _buildDomainSeparator();
        _cachedThis = address(this);
    }

    /**
     * @dev Returns the domain separator for the current chain.
     */
    function _domainSeparatorV4() internal view returns (bytes32) {
        if (address(this) == _cachedThis && block.chainid == _cachedChainId) {
            return _cachedDomainSeparator;
        } else {
            return _buildDomainSeparator();
        }
    }

    function _buildDomainSeparator() private view returns (bytes32) {
        return keccak256(abi.encode(_TYPE_HASH, _hashedName, _hashedVersion, block.chainid, address(this)));
    }

    /**
     * @dev Given an already https://eips.ethereum.org/EIPS/eip-712#definition-of-hashstruct[hashed struct], this
     * function returns the hash of the fully encoded EIP712 message for this domain.
     *
     * This hash can be used together with {ECDSA-recover} to obtain the signer of a message. For example:
     *
     * ```solidity
     * bytes32 digest = _hashTypedDataV4(keccak256(abi.encode(
     *     keccak256("Mail(address to,string contents)"),
     *     mailTo,
     *     keccak256(bytes(mailContents))
     * )));
     * address signer = ECDSA.recover(digest, signature);
     * ```
     */
    function _hashTypedDataV4(bytes32 structHash) internal view virtual returns (bytes32) {
        return ECDSA.toTypedDataHash(_domainSeparatorV4(), structHash);
    }

    /**
     * @dev See {EIP-5267}.
     *
     * _Available since v4.9._
     */
    function eip712Domain()
        public
        view
        virtual
        override
        returns (
            bytes1 fields,
            string memory name,
            string memory version,
            uint256 chainId,
            address verifyingContract,
            bytes32 salt,
            uint256[] memory extensions
        )
    {
        return (
            hex"0f", // 01111
            _name.toStringWithFallback(_nameFallback),
            _version.toStringWithFallback(_versionFallback),
            block.chainid,
            address(this),
            bytes32(0),
            new uint256[](0)
        );
    }
}

@openzeppelin/contracts/utils/cryptography/MerkleProof.sol

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.2) (utils/cryptography/MerkleProof.sol)

pragma solidity ^0.8.0;

/**
 * @dev These functions deal with verification of Merkle Tree proofs.
 *
 * The tree and the proofs can be generated using our
 * https://github.com/OpenZeppelin/merkle-tree[JavaScript library].
 * You will find a quickstart guide in the readme.
 *
 * WARNING: You should avoid using leaf values that are 64 bytes long prior to
 * hashing, or use a hash function other than keccak256 for hashing leaves.
 * This is because the concatenation of a sorted pair of internal nodes in
 * the merkle tree could be reinterpreted as a leaf value.
 * OpenZeppelin's JavaScript library generates merkle trees that are safe
 * against this attack out of the box.
 */
library MerkleProof {
    /**
     * @dev Returns true if a `leaf` can be proved to be a part of a Merkle tree
     * defined by `root`. For this, a `proof` must be provided, containing
     * sibling hashes on the branch from the leaf to the root of the tree. Each
     * pair of leaves and each pair of pre-images are assumed to be sorted.
     */
    function verify(bytes32[] memory proof, bytes32 root, bytes32 leaf) internal pure returns (bool) {
        return processProof(proof, leaf) == root;
    }

    /**
     * @dev Calldata version of {verify}
     *
     * _Available since v4.7._
     */
    function verifyCalldata(bytes32[] calldata proof, bytes32 root, bytes32 leaf) internal pure returns (bool) {
        return processProofCalldata(proof, leaf) == root;
    }

    /**
     * @dev Returns the rebuilt hash obtained by traversing a Merkle tree up
     * from `leaf` using `proof`. A `proof` is valid if and only if the rebuilt
     * hash matches the root of the tree. When processing the proof, the pairs
     * of leafs & pre-images are assumed to be sorted.
     *
     * _Available since v4.4._
     */
    function processProof(bytes32[] memory proof, bytes32 leaf) internal pure returns (bytes32) {
        bytes32 computedHash = leaf;
        for (uint256 i = 0; i < proof.length; i++) {
            computedHash = _hashPair(computedHash, proof[i]);
        }
        return computedHash;
    }

    /**
     * @dev Calldata version of {processProof}
     *
     * _Available since v4.7._
     */
    function processProofCalldata(bytes32[] calldata proof, bytes32 leaf) internal pure returns (bytes32) {
        bytes32 computedHash = leaf;
        for (uint256 i = 0; i < proof.length; i++) {
            computedHash = _hashPair(computedHash, proof[i]);
        }
        return computedHash;
    }

    /**
     * @dev Returns true if the `leaves` can be simultaneously proven to be a part of a merkle tree defined by
     * `root`, according to `proof` and `proofFlags` as described in {processMultiProof}.
     *
     * CAUTION: Not all merkle trees admit multiproofs. See {processMultiProof} for details.
     *
     * _Available since v4.7._
     */
    function multiProofVerify(
        bytes32[] memory proof,
        bool[] memory proofFlags,
        bytes32 root,
        bytes32[] memory leaves
    ) internal pure returns (bool) {
        return processMultiProof(proof, proofFlags, leaves) == root;
    }

    /**
     * @dev Calldata version of {multiProofVerify}
     *
     * CAUTION: Not all merkle trees admit multiproofs. See {processMultiProof} for details.
     *
     * _Available since v4.7._
     */
    function multiProofVerifyCalldata(
        bytes32[] calldata proof,
        bool[] calldata proofFlags,
        bytes32 root,
        bytes32[] memory leaves
    ) internal pure returns (bool) {
        return processMultiProofCalldata(proof, proofFlags, leaves) == root;
    }

    /**
     * @dev Returns the root of a tree reconstructed from `leaves` and sibling nodes in `proof`. The reconstruction
     * proceeds by incrementally reconstructing all inner nodes by combining a leaf/inner node with either another
     * leaf/inner node or a proof sibling node, depending on whether each `proofFlags` item is true or false
     * respectively.
     *
     * CAUTION: Not all merkle trees admit multiproofs. To use multiproofs, it is sufficient to ensure that: 1) the tree
     * is complete (but not necessarily perfect), 2) the leaves to be proven are in the opposite order they are in the
     * tree (i.e., as seen from right to left starting at the deepest layer and continuing at the next layer).
     *
     * _Available since v4.7._
     */
    function processMultiProof(
        bytes32[] memory proof,
        bool[] memory proofFlags,
        bytes32[] memory leaves
    ) internal pure returns (bytes32 merkleRoot) {
        // This function rebuilds the root hash by traversing the tree up from the leaves. The root is rebuilt by
        // consuming and producing values on a queue. The queue starts with the `leaves` array, then goes onto the
        // `hashes` array. At the end of the process, the last hash in the `hashes` array should contain the root of
        // the merkle tree.
        uint256 leavesLen = leaves.length;
        uint256 proofLen = proof.length;
        uint256 totalHashes = proofFlags.length;

        // Check proof validity.
        require(leavesLen + proofLen - 1 == totalHashes, "MerkleProof: invalid multiproof");

        // The xxxPos values are "pointers" to the next value to consume in each array. All accesses are done using
        // `xxx[xxxPos++]`, which return the current value and increment the pointer, thus mimicking a queue's "pop".
        bytes32[] memory hashes = new bytes32[](totalHashes);
        uint256 leafPos = 0;
        uint256 hashPos = 0;
        uint256 proofPos = 0;
        // At each step, we compute the next hash using two values:
        // - a value from the "main queue". If not all leaves have been consumed, we get the next leaf, otherwise we
        //   get the next hash.
        // - depending on the flag, either another value from the "main queue" (merging branches) or an element from the
        //   `proof` array.
        for (uint256 i = 0; i < totalHashes; i++) {
            bytes32 a = leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++];
            bytes32 b = proofFlags[i]
                ? (leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++])
                : proof[proofPos++];
            hashes[i] = _hashPair(a, b);
        }

        if (totalHashes > 0) {
            require(proofPos == proofLen, "MerkleProof: invalid multiproof");
            unchecked {
                return hashes[totalHashes - 1];
            }
        } else if (leavesLen > 0) {
            return leaves[0];
        } else {
            return proof[0];
        }
    }

    /**
     * @dev Calldata version of {processMultiProof}.
     *
     * CAUTION: Not all merkle trees admit multiproofs. See {processMultiProof} for details.
     *
     * _Available since v4.7._
     */
    function processMultiProofCalldata(
        bytes32[] calldata proof,
        bool[] calldata proofFlags,
        bytes32[] memory leaves
    ) internal pure returns (bytes32 merkleRoot) {
        // This function rebuilds the root hash by traversing the tree up from the leaves. The root is rebuilt by
        // consuming and producing values on a queue. The queue starts with the `leaves` array, then goes onto the
        // `hashes` array. At the end of the process, the last hash in the `hashes` array should contain the root of
        // the merkle tree.
        uint256 leavesLen = leaves.length;
        uint256 proofLen = proof.length;
        uint256 totalHashes = proofFlags.length;

        // Check proof validity.
        require(leavesLen + proofLen - 1 == totalHashes, "MerkleProof: invalid multiproof");

        // The xxxPos values are "pointers" to the next value to consume in each array. All accesses are done using
        // `xxx[xxxPos++]`, which return the current value and increment the pointer, thus mimicking a queue's "pop".
        bytes32[] memory hashes = new bytes32[](totalHashes);
        uint256 leafPos = 0;
        uint256 hashPos = 0;
        uint256 proofPos = 0;
        // At each step, we compute the next hash using two values:
        // - a value from the "main queue". If not all leaves have been consumed, we get the next leaf, otherwise we
        //   get the next hash.
        // - depending on the flag, either another value from the "main queue" (merging branches) or an element from the
        //   `proof` array.
        for (uint256 i = 0; i < totalHashes; i++) {
            bytes32 a = leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++];
            bytes32 b = proofFlags[i]
                ? (leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++])
                : proof[proofPos++];
            hashes[i] = _hashPair(a, b);
        }

        if (totalHashes > 0) {
            require(proofPos == proofLen, "MerkleProof: invalid multiproof");
            unchecked {
                return hashes[totalHashes - 1];
            }
        } else if (leavesLen > 0) {
            return leaves[0];
        } else {
            return proof[0];
        }
    }

    function _hashPair(bytes32 a, bytes32 b) private pure returns (bytes32) {
        return a < b ? _efficientHash(a, b) : _efficientHash(b, a);
    }

    function _efficientHash(bytes32 a, bytes32 b) private pure returns (bytes32 value) {
        /// @solidity memory-safe-assembly
        assembly {
            mstore(0x00, a)
            mstore(0x20, b)
            value := keccak256(0x00, 0x40)
        }
    }
}

@openzeppelin/contracts/utils/cryptography/SignatureChecker.sol

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (utils/cryptography/SignatureChecker.sol)

pragma solidity ^0.8.0;

import "./ECDSA.sol";
import "../../interfaces/IERC1271.sol";

/**
 * @dev Signature verification helper that can be used instead of `ECDSA.recover` to seamlessly support both ECDSA
 * signatures from externally owned accounts (EOAs) as well as ERC1271 signatures from smart contract wallets like
 * Argent and Gnosis Safe.
 *
 * _Available since v4.1._
 */
library SignatureChecker {
    /**
     * @dev Checks if a signature is valid for a given signer and data hash. If the signer is a smart contract, the
     * signature is validated against that smart contract using ERC1271, otherwise it's validated using `ECDSA.recover`.
     *
     * NOTE: Unlike ECDSA signatures, contract signatures are revocable, and the outcome of this function can thus
     * change through time. It could return true at block N and false at block N+1 (or the opposite).
     */
    function isValidSignatureNow(address signer, bytes32 hash, bytes memory signature) internal view returns (bool) {
        (address recovered, ECDSA.RecoverError error) = ECDSA.tryRecover(hash, signature);
        return
            (error == ECDSA.RecoverError.NoError && recovered == signer) ||
            isValidERC1271SignatureNow(signer, hash, signature);
    }

    /**
     * @dev Checks if a signature is valid for a given signer and data hash. The signature is validated
     * against the signer smart contract using ERC1271.
     *
     * NOTE: Unlike ECDSA signatures, contract signatures are revocable, and the outcome of this function can thus
     * change through time. It could return true at block N and false at block N+1 (or the opposite).
     */
    function isValidERC1271SignatureNow(
        address signer,
        bytes32 hash,
        bytes memory signature
    ) internal view returns (bool) {
        (bool success, bytes memory result) = signer.staticcall(
            abi.encodeWithSelector(IERC1271.isValidSignature.selector, hash, signature)
        );
        return (success &&
            result.length >= 32 &&
            abi.decode(result, (bytes32)) == bytes32(IERC1271.isValidSignature.selector));
    }
}

@openzeppelin/contracts/utils/introspection/ERC165.sol

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol)

pragma solidity ^0.8.0;

import "./IERC165.sol";

/**
 * @dev Implementation of the {IERC165} interface.
 *
 * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check
 * for the additional interface id that will be supported. For example:
 *
 * ```solidity
 * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
 *     return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);
 * }
 * ```
 *
 * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation.
 */
abstract contract ERC165 is IERC165 {
    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
        return interfaceId == type(IERC165).interfaceId;
    }
}

@openzeppelin/contracts/utils/introspection/IERC165.sol

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC165 standard, as defined in the
 * https://eips.ethereum.org/EIPS/eip-165[EIP].
 *
 * Implementers can declare support of contract interfaces, which can then be
 * queried by others ({ERC165Checker}).
 *
 * For an implementation, see {ERC165}.
 */
interface IERC165 {
    /**
     * @dev Returns true if this contract implements the interface defined by
     * `interfaceId`. See the corresponding
     * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]
     * to learn more about how these ids are created.
     *
     * This function call must use less than 30 000 gas.
     */
    function supportsInterface(bytes4 interfaceId) external view returns (bool);
}

@openzeppelin/contracts/utils/math/Math.sol

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (utils/math/Math.sol)

pragma solidity ^0.8.0;

/**
 * @dev Standard math utilities missing in the Solidity language.
 */
library Math {
    enum Rounding {
        Down, // Toward negative infinity
        Up, // Toward infinity
        Zero // Toward zero
    }

    /**
     * @dev Returns the largest of two numbers.
     */
    function max(uint256 a, uint256 b) internal pure returns (uint256) {
        return a > b ? a : b;
    }

    /**
     * @dev Returns the smallest of two numbers.
     */
    function min(uint256 a, uint256 b) internal pure returns (uint256) {
        return a < b ? a : b;
    }

    /**
     * @dev Returns the average of two numbers. The result is rounded towards
     * zero.
     */
    function average(uint256 a, uint256 b) internal pure returns (uint256) {
        // (a + b) / 2 can overflow.
        return (a & b) + (a ^ b) / 2;
    }

    /**
     * @dev Returns the ceiling of the division of two numbers.
     *
     * This differs from standard division with `/` in that it rounds up instead
     * of rounding down.
     */
    function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) {
        // (a + b - 1) / b can overflow on addition, so we distribute.
        return a == 0 ? 0 : (a - 1) / b + 1;
    }

    /**
     * @notice Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or denominator == 0
     * @dev Original credit to Remco Bloemen under MIT license (https://xn--2-umb.com/21/muldiv)
     * with further edits by Uniswap Labs also under MIT license.
     */
    function mulDiv(uint256 x, uint256 y, uint256 denominator) internal pure returns (uint256 result) {
        unchecked {
            // 512-bit multiply [prod1 prod0] = x * y. Compute the product mod 2^256 and mod 2^256 - 1, then use
            // use the Chinese Remainder Theorem to reconstruct the 512 bit result. The result is stored in two 256
            // variables such that product = prod1 * 2^256 + prod0.
            uint256 prod0; // Least significant 256 bits of the product
            uint256 prod1; // Most significant 256 bits of the product
            assembly {
                let mm := mulmod(x, y, not(0))
                prod0 := mul(x, y)
                prod1 := sub(sub(mm, prod0), lt(mm, prod0))
            }

            // Handle non-overflow cases, 256 by 256 division.
            if (prod1 == 0) {
                // Solidity will revert if denominator == 0, unlike the div opcode on its own.
                // The surrounding unchecked block does not change this fact.
                // See https://docs.soliditylang.org/en/latest/control-structures.html#checked-or-unchecked-arithmetic.
                return prod0 / denominator;
            }

            // Make sure the result is less than 2^256. Also prevents denominator == 0.
            require(denominator > prod1, "Math: mulDiv overflow");

            ///////////////////////////////////////////////
            // 512 by 256 division.
            ///////////////////////////////////////////////

            // Make division exact by subtracting the remainder from [prod1 prod0].
            uint256 remainder;
            assembly {
                // Compute remainder using mulmod.
                remainder := mulmod(x, y, denominator)

                // Subtract 256 bit number from 512 bit number.
                prod1 := sub(prod1, gt(remainder, prod0))
                prod0 := sub(prod0, remainder)
            }

            // Factor powers of two out of denominator and compute largest power of two divisor of denominator. Always >= 1.
            // See https://cs.stackexchange.com/q/138556/92363.

            // Does not overflow because the denominator cannot be zero at this stage in the function.
            uint256 twos = denominator & (~denominator + 1);
            assembly {
                // Divide denominator by twos.
                denominator := div(denominator, twos)

                // Divide [prod1 prod0] by twos.
                prod0 := div(prod0, twos)

                // Flip twos such that it is 2^256 / twos. If twos is zero, then it becomes one.
                twos := add(div(sub(0, twos), twos), 1)
            }

            // Shift in bits from prod1 into prod0.
            prod0 |= prod1 * twos;

            // Invert denominator mod 2^256. Now that denominator is an odd number, it has an inverse modulo 2^256 such
            // that denominator * inv = 1 mod 2^256. Compute the inverse by starting with a seed that is correct for
            // four bits. That is, denominator * inv = 1 mod 2^4.
            uint256 inverse = (3 * denominator) ^ 2;

            // Use the Newton-Raphson iteration to improve the precision. Thanks to Hensel's lifting lemma, this also works
            // in modular arithmetic, doubling the correct bits in each step.
            inverse *= 2 - denominator * inverse; // inverse mod 2^8
            inverse *= 2 - denominator * inverse; // inverse mod 2^16
            inverse *= 2 - denominator * inverse; // inverse mod 2^32
            inverse *= 2 - denominator * inverse; // inverse mod 2^64
            inverse *= 2 - denominator * inverse; // inverse mod 2^128
            inverse *= 2 - denominator * inverse; // inverse mod 2^256

            // Because the division is now exact we can divide by multiplying with the modular inverse of denominator.
            // This will give us the correct result modulo 2^256. Since the preconditions guarantee that the outcome is
            // less than 2^256, this is the final result. We don't need to compute the high bits of the result and prod1
            // is no longer required.
            result = prod0 * inverse;
            return result;
        }
    }

    /**
     * @notice Calculates x * y / denominator with full precision, following the selected rounding direction.
     */
    function mulDiv(uint256 x, uint256 y, uint256 denominator, Rounding rounding) internal pure returns (uint256) {
        uint256 result = mulDiv(x, y, denominator);
        if (rounding == Rounding.Up && mulmod(x, y, denominator) > 0) {
            result += 1;
        }
        return result;
    }

    /**
     * @dev Returns the square root of a number. If the number is not a perfect square, the value is rounded down.
     *
     * Inspired by Henry S. Warren, Jr.'s "Hacker's Delight" (Chapter 11).
     */
    function sqrt(uint256 a) internal pure returns (uint256) {
        if (a == 0) {
            return 0;
        }

        // For our first guess, we get the biggest power of 2 which is smaller than the square root of the target.
        //
        // We know that the "msb" (most significant bit) of our target number `a` is a power of 2 such that we have
        // `msb(a) <= a < 2*msb(a)`. This value can be written `msb(a)=2**k` with `k=log2(a)`.
        //
        // This can be rewritten `2**log2(a) <= a < 2**(log2(a) + 1)`
        // → `sqrt(2**k) <= sqrt(a) < sqrt(2**(k+1))`
        // → `2**(k/2) <= sqrt(a) < 2**((k+1)/2) <= 2**(k/2 + 1)`
        //
        // Consequently, `2**(log2(a) / 2)` is a good first approximation of `sqrt(a)` with at least 1 correct bit.
        uint256 result = 1 << (log2(a) >> 1);

        // At this point `result` is an estimation with one bit of precision. We know the true value is a uint128,
        // since it is the square root of a uint256. Newton's method converges quadratically (precision doubles at
        // every iteration). We thus need at most 7 iteration to turn our partial result with one bit of precision
        // into the expected uint128 result.
        unchecked {
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            return min(result, a / result);
        }
    }

    /**
     * @notice Calculates sqrt(a), following the selected rounding direction.
     */
    function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = sqrt(a);
            return result + (rounding == Rounding.Up && result * result < a ? 1 : 0);
        }
    }

    /**
     * @dev Return the log in base 2, rounded down, of a positive value.
     * Returns 0 if given 0.
     */
    function log2(uint256 value) internal pure returns (uint256) {
        uint256 result = 0;
        unchecked {
            if (value >> 128 > 0) {
                value >>= 128;
                result += 128;
            }
            if (value >> 64 > 0) {
                value >>= 64;
                result += 64;
            }
            if (value >> 32 > 0) {
                value >>= 32;
                result += 32;
            }
            if (value >> 16 > 0) {
                value >>= 16;
                result += 16;
            }
            if (value >> 8 > 0) {
                value >>= 8;
                result += 8;
            }
            if (value >> 4 > 0) {
                value >>= 4;
                result += 4;
            }
            if (value >> 2 > 0) {
                value >>= 2;
                result += 2;
            }
            if (value >> 1 > 0) {
                result += 1;
            }
        }
        return result;
    }

    /**
     * @dev Return the log in base 2, following the selected rounding direction, of a positive value.
     * Returns 0 if given 0.
     */
    function log2(uint256 value, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = log2(value);
            return result + (rounding == Rounding.Up && 1 << result < value ? 1 : 0);
        }
    }

    /**
     * @dev Return the log in base 10, rounded down, of a positive value.
     * Returns 0 if given 0.
     */
    function log10(uint256 value) internal pure returns (uint256) {
        uint256 result = 0;
        unchecked {
            if (value >= 10 ** 64) {
                value /= 10 ** 64;
                result += 64;
            }
            if (value >= 10 ** 32) {
                value /= 10 ** 32;
                result += 32;
            }
            if (value >= 10 ** 16) {
                value /= 10 ** 16;
                result += 16;
            }
            if (value >= 10 ** 8) {
                value /= 10 ** 8;
                result += 8;
            }
            if (value >= 10 ** 4) {
                value /= 10 ** 4;
                result += 4;
            }
            if (value >= 10 ** 2) {
                value /= 10 ** 2;
                result += 2;
            }
            if (value >= 10 ** 1) {
                result += 1;
            }
        }
        return result;
    }

    /**
     * @dev Return the log in base 10, following the selected rounding direction, of a positive value.
     * Returns 0 if given 0.
     */
    function log10(uint256 value, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = log10(value);
            return result + (rounding == Rounding.Up && 10 ** result < value ? 1 : 0);
        }
    }

    /**
     * @dev Return the log in base 256, rounded down, of a positive value.
     * Returns 0 if given 0.
     *
     * Adding one to the result gives the number of pairs of hex symbols needed to represent `value` as a hex string.
     */
    function log256(uint256 value) internal pure returns (uint256) {
        uint256 result = 0;
        unchecked {
            if (value >> 128 > 0) {
                value >>= 128;
                result += 16;
            }
            if (value >> 64 > 0) {
                value >>= 64;
                result += 8;
            }
            if (value >> 32 > 0) {
                value >>= 32;
                result += 4;
            }
            if (value >> 16 > 0) {
                value >>= 16;
                result += 2;
            }
            if (value >> 8 > 0) {
                result += 1;
            }
        }
        return result;
    }

    /**
     * @dev Return the log in base 256, following the selected rounding direction, of a positive value.
     * Returns 0 if given 0.
     */
    function log256(uint256 value, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = log256(value);
            return result + (rounding == Rounding.Up && 1 << (result << 3) < value ? 1 : 0);
        }
    }
}

@openzeppelin/contracts/utils/math/SignedMath.sol

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (utils/math/SignedMath.sol)

pragma solidity ^0.8.0;

/**
 * @dev Standard signed math utilities missing in the Solidity language.
 */
library SignedMath {
    /**
     * @dev Returns the largest of two signed numbers.
     */
    function max(int256 a, int256 b) internal pure returns (int256) {
        return a > b ? a : b;
    }

    /**
     * @dev Returns the smallest of two signed numbers.
     */
    function min(int256 a, int256 b) internal pure returns (int256) {
        return a < b ? a : b;
    }

    /**
     * @dev Returns the average of two signed numbers without overflow.
     * The result is rounded towards zero.
     */
    function average(int256 a, int256 b) internal pure returns (int256) {
        // Formula from the book "Hacker's Delight"
        int256 x = (a & b) + ((a ^ b) >> 1);
        return x + (int256(uint256(x) >> 255) & (a ^ b));
    }

    /**
     * @dev Returns the absolute unsigned value of a signed value.
     */
    function abs(int256 n) internal pure returns (uint256) {
        unchecked {
            // must be unchecked in order to support `n = type(int256).min`
            return uint256(n >= 0 ? n : -n);
        }
    }
}

@openzeppelin/contracts/utils/ShortStrings.sol

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (utils/ShortStrings.sol)

pragma solidity ^0.8.8;

import "./StorageSlot.sol";

// | string  | 0xAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA   |
// | length  | 0x                                                              BB |
type ShortString is bytes32;

/**
 * @dev This library provides functions to convert short memory strings
 * into a `ShortString` type that can be used as an immutable variable.
 *
 * Strings of arbitrary length can be optimized using this library if
 * they are short enough (up to 31 bytes) by packing them with their
 * length (1 byte) in a single EVM word (32 bytes). Additionally, a
 * fallback mechanism can be used for every other case.
 *
 * Usage example:
 *
 * ```solidity
 * contract Named {
 *     using ShortStrings for *;
 *
 *     ShortString private immutable _name;
 *     string private _nameFallback;
 *
 *     constructor(string memory contractName) {
 *         _name = contractName.toShortStringWithFallback(_nameFallback);
 *     }
 *
 *     function name() external view returns (string memory) {
 *         return _name.toStringWithFallback(_nameFallback);
 *     }
 * }
 * ```
 */
library ShortStrings {
    // Used as an identifier for strings longer than 31 bytes.
    bytes32 private constant _FALLBACK_SENTINEL = 0x00000000000000000000000000000000000000000000000000000000000000FF;

    error StringTooLong(string str);
    error InvalidShortString();

    /**
     * @dev Encode a string of at most 31 chars into a `ShortString`.
     *
     * This will trigger a `StringTooLong` error is the input string is too long.
     */
    function toShortString(string memory str) internal pure returns (ShortString) {
        bytes memory bstr = bytes(str);
        if (bstr.length > 31) {
            revert StringTooLong(str);
        }
        return ShortString.wrap(bytes32(uint256(bytes32(bstr)) | bstr.length));
    }

    /**
     * @dev Decode a `ShortString` back to a "normal" string.
     */
    function toString(ShortString sstr) internal pure returns (string memory) {
        uint256 len = byteLength(sstr);
        // using `new string(len)` would work locally but is not memory safe.
        string memory str = new string(32);
        /// @solidity memory-safe-assembly
        assembly {
            mstore(str, len)
            mstore(add(str, 0x20), sstr)
        }
        return str;
    }

    /**
     * @dev Return the length of a `ShortString`.
     */
    function byteLength(ShortString sstr) internal pure returns (uint256) {
        uint256 result = uint256(ShortString.unwrap(sstr)) & 0xFF;
        if (result > 31) {
            revert InvalidShortString();
        }
        return result;
    }

    /**
     * @dev Encode a string into a `ShortString`, or write it to storage if it is too long.
     */
    function toShortStringWithFallback(string memory value, string storage store) internal returns (ShortString) {
        if (bytes(value).length < 32) {
            return toShortString(value);
        } else {
            StorageSlot.getStringSlot(store).value = value;
            return ShortString.wrap(_FALLBACK_SENTINEL);
        }
    }

    /**
     * @dev Decode a string that was encoded to `ShortString` or written to storage using {setWithFallback}.
     */
    function toStringWithFallback(ShortString value, string storage store) internal pure returns (string memory) {
        if (ShortString.unwrap(value) != _FALLBACK_SENTINEL) {
            return toString(value);
        } else {
            return store;
        }
    }

    /**
     * @dev Return the length of a string that was encoded to `ShortString` or written to storage using {setWithFallback}.
     *
     * WARNING: This will return the "byte length" of the string. This may not reflect the actual length in terms of
     * actual characters as the UTF-8 encoding of a single character can span over multiple bytes.
     */
    function byteLengthWithFallback(ShortString value, string storage store) internal view returns (uint256) {
        if (ShortString.unwrap(value) != _FALLBACK_SENTINEL) {
            return byteLength(value);
        } else {
            return bytes(store).length;
        }
    }
}

@openzeppelin/contracts/utils/StorageSlot.sol

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (utils/StorageSlot.sol)
// This file was procedurally generated from scripts/generate/templates/StorageSlot.js.

pragma solidity ^0.8.0;

/**
 * @dev Library for reading and writing primitive types to specific storage slots.
 *
 * Storage slots are often used to avoid storage conflict when dealing with upgradeable contracts.
 * This library helps with reading and writing to such slots without the need for inline assembly.
 *
 * The functions in this library return Slot structs that contain a `value` member that can be used to read or write.
 *
 * Example usage to set ERC1967 implementation slot:
 * ```solidity
 * contract ERC1967 {
 *     bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;
 *
 *     function _getImplementation() internal view returns (address) {
 *         return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value;
 *     }
 *
 *     function _setImplementation(address newImplementation) internal {
 *         require(Address.isContract(newImplementation), "ERC1967: new implementation is not a contract");
 *         StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation;
 *     }
 * }
 * ```
 *
 * _Available since v4.1 for `address`, `bool`, `bytes32`, `uint256`._
 * _Available since v4.9 for `string`, `bytes`._
 */
library StorageSlot {
    struct AddressSlot {
        address value;
    }

    struct BooleanSlot {
        bool value;
    }

    struct Bytes32Slot {
        bytes32 value;
    }

    struct Uint256Slot {
        uint256 value;
    }

    struct StringSlot {
        string value;
    }

    struct BytesSlot {
        bytes value;
    }

    /**
     * @dev Returns an `AddressSlot` with member `value` located at `slot`.
     */
    function getAddressSlot(bytes32 slot) internal pure returns (AddressSlot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `BooleanSlot` with member `value` located at `slot`.
     */
    function getBooleanSlot(bytes32 slot) internal pure returns (BooleanSlot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `Bytes32Slot` with member `value` located at `slot`.
     */
    function getBytes32Slot(bytes32 slot) internal pure returns (Bytes32Slot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `Uint256Slot` with member `value` located at `slot`.
     */
    function getUint256Slot(bytes32 slot) internal pure returns (Uint256Slot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `StringSlot` with member `value` located at `slot`.
     */
    function getStringSlot(bytes32 slot) internal pure returns (StringSlot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `StringSlot` representation of the string storage pointer `store`.
     */
    function getStringSlot(string storage store) internal pure returns (StringSlot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := store.slot
        }
    }

    /**
     * @dev Returns an `BytesSlot` with member `value` located at `slot`.
     */
    function getBytesSlot(bytes32 slot) internal pure returns (BytesSlot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `BytesSlot` representation of the bytes storage pointer `store`.
     */
    function getBytesSlot(bytes storage store) internal pure returns (BytesSlot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := store.slot
        }
    }
}

@openzeppelin/contracts/utils/Strings.sol

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (utils/Strings.sol)

pragma solidity ^0.8.0;

import "./math/Math.sol";
import "./math/SignedMath.sol";

/**
 * @dev String operations.
 */
library Strings {
    bytes16 private constant _SYMBOLS = "0123456789abcdef";
    uint8 private constant _ADDRESS_LENGTH = 20;

    /**
     * @dev Converts a `uint256` to its ASCII `string` decimal representation.
     */
    function toString(uint256 value) internal pure returns (string memory) {
        unchecked {
            uint256 length = Math.log10(value) + 1;
            string memory buffer = new string(length);
            uint256 ptr;
            /// @solidity memory-safe-assembly
            assembly {
                ptr := add(buffer, add(32, length))
            }
            while (true) {
                ptr--;
                /// @solidity memory-safe-assembly
                assembly {
                    mstore8(ptr, byte(mod(value, 10), _SYMBOLS))
                }
                value /= 10;
                if (value == 0) break;
            }
            return buffer;
        }
    }

    /**
     * @dev Converts a `int256` to its ASCII `string` decimal representation.
     */
    function toString(int256 value) internal pure returns (string memory) {
        return string(abi.encodePacked(value < 0 ? "-" : "", toString(SignedMath.abs(value))));
    }

    /**
     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
     */
    function toHexString(uint256 value) internal pure returns (string memory) {
        unchecked {
            return toHexString(value, Math.log256(value) + 1);
        }
    }

    /**
     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.
     */
    function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {
        bytes memory buffer = new bytes(2 * length + 2);
        buffer[0] = "0";
        buffer[1] = "x";
        for (uint256 i = 2 * length + 1; i > 1; --i) {
            buffer[i] = _SYMBOLS[value & 0xf];
            value >>= 4;
        }
        require(value == 0, "Strings: hex length insufficient");
        return string(buffer);
    }

    /**
     * @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal representation.
     */
    function toHexString(address addr) internal pure returns (string memory) {
        return toHexString(uint256(uint160(addr)), _ADDRESS_LENGTH);
    }

    /**
     * @dev Returns true if the two strings are equal.
     */
    function equal(string memory a, string memory b) internal pure returns (bool) {
        return keccak256(bytes(a)) == keccak256(bytes(b));
    }
}

@uniswap/lib/contracts/libraries/TransferHelper.sol

pragma solidity >=0.6.0;

// helper methods for interacting with ERC20 tokens and sending ETH that do not consistently return true/false
library TransferHelper {
    function safeApprove(address token, address to, uint value) internal {
        // bytes4(keccak256(bytes('approve(address,uint256)')));
        (bool success, bytes memory data) = token.call(abi.encodeWithSelector(0x095ea7b3, to, value));
        require(success && (data.length == 0 || abi.decode(data, (bool))), 'TransferHelper: APPROVE_FAILED');
    }

    function safeTransfer(address token, address to, uint value) internal {
        // bytes4(keccak256(bytes('transfer(address,uint256)')));
        (bool success, bytes memory data) = token.call(abi.encodeWithSelector(0xa9059cbb, to, value));
        require(success && (data.length == 0 || abi.decode(data, (bool))), 'TransferHelper: TRANSFER_FAILED');
    }

    function safeTransferFrom(address token, address from, address to, uint value) internal {
        // bytes4(keccak256(bytes('transferFrom(address,address,uint256)')));
        (bool success, bytes memory data) = token.call(abi.encodeWithSelector(0x23b872dd, from, to, value));
        require(success && (data.length == 0 || abi.decode(data, (bool))), 'TransferHelper: TRANSFER_FROM_FAILED');
    }

    function safeTransferETH(address to, uint value) internal {
        (bool success,) = to.call{value:value}(new bytes(0));
        require(success, 'TransferHelper: ETH_TRANSFER_FAILED');
    }
}

@uniswap/v2-core/contracts/interfaces/IERC20.sol

pragma solidity >=0.5.0;

interface IERC20 {
    event Approval(address indexed owner, address indexed spender, uint value);
    event Transfer(address indexed from, address indexed to, uint value);

    function name() external view returns (string memory);
    function symbol() external view returns (string memory);
    function decimals() external view returns (uint8);
    function totalSupply() external view returns (uint);
    function balanceOf(address owner) external view returns (uint);
    function allowance(address owner, address spender) external view returns (uint);

    function approve(address spender, uint value) external returns (bool);
    function transfer(address to, uint value) external returns (bool);
    function transferFrom(address from, address to, uint value) external returns (bool);
}

@uniswap/v2-core/contracts/interfaces/IUniswapV2Callee.sol

pragma solidity >=0.5.0;

interface IUniswapV2Callee {
    function uniswapV2Call(address sender, uint amount0, uint amount1, bytes calldata data) external;
}

@uniswap/v2-core/contracts/interfaces/IUniswapV2ERC20.sol

pragma solidity >=0.5.0;

interface IUniswapV2ERC20 {
    event Approval(address indexed owner, address indexed spender, uint value);
    event Transfer(address indexed from, address indexed to, uint value);

    function name() external pure returns (string memory);
    function symbol() external pure returns (string memory);
    function decimals() external pure returns (uint8);
    function totalSupply() external view returns (uint);
    function balanceOf(address owner) external view returns (uint);
    function allowance(address owner, address spender) external view returns (uint);

    function approve(address spender, uint value) external returns (bool);
    function transfer(address to, uint value) external returns (bool);
    function transferFrom(address from, address to, uint value) external returns (bool);

    function DOMAIN_SEPARATOR() external view returns (bytes32);
    function PERMIT_TYPEHASH() external pure returns (bytes32);
    function nonces(address owner) external view returns (uint);

    function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external;
}

@uniswap/v2-core/contracts/interfaces/IUniswapV2Factory.sol

pragma solidity >=0.5.0;

interface IUniswapV2Factory {
    event PairCreated(address indexed token0, address indexed token1, address pair, uint);

    function feeTo() external view returns (address);
    function feeToSetter() external view returns (address);

    function getPair(address tokenA, address tokenB) external view returns (address pair);
    function allPairs(uint) external view returns (address pair);
    function allPairsLength() external view returns (uint);

    function createPair(address tokenA, address tokenB) external returns (address pair);

    function setFeeTo(address) external;
    function setFeeToSetter(address) external;
}

@uniswap/v2-core/contracts/interfaces/IUniswapV2Pair.sol

pragma solidity >=0.5.0;

interface IUniswapV2Pair {
    event Approval(address indexed owner, address indexed spender, uint value);
    event Transfer(address indexed from, address indexed to, uint value);

    function name() external pure returns (string memory);
    function symbol() external pure returns (string memory);
    function decimals() external pure returns (uint8);
    function totalSupply() external view returns (uint);
    function balanceOf(address owner) external view returns (uint);
    function allowance(address owner, address spender) external view returns (uint);

    function approve(address spender, uint value) external returns (bool);
    function transfer(address to, uint value) external returns (bool);
    function transferFrom(address from, address to, uint value) external returns (bool);

    function DOMAIN_SEPARATOR() external view returns (bytes32);
    function PERMIT_TYPEHASH() external pure returns (bytes32);
    function nonces(address owner) external view returns (uint);

    function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external;

    event Mint(address indexed sender, uint amount0, uint amount1);
    event Burn(address indexed sender, uint amount0, uint amount1, address indexed to);
    event Swap(
        address indexed sender,
        uint amount0In,
        uint amount1In,
        uint amount0Out,
        uint amount1Out,
        address indexed to
    );
    event Sync(uint112 reserve0, uint112 reserve1);

    function MINIMUM_LIQUIDITY() external pure returns (uint);
    function factory() external view returns (address);
    function token0() external view returns (address);
    function token1() external view returns (address);
    function getReserves() external view returns (uint112 reserve0, uint112 reserve1, uint32 blockTimestampLast);
    function price0CumulativeLast() external view returns (uint);
    function price1CumulativeLast() external view returns (uint);
    function kLast() external view returns (uint);

    function mint(address to) external returns (uint liquidity);
    function burn(address to) external returns (uint amount0, uint amount1);
    function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external;
    function skim(address to) external;
    function sync() external;

    function initialize(address, address) external;
}

@uniswap/v2-periphery/contracts/interfaces/IERC20.sol

pragma solidity >=0.5.0;

interface IERC20 {
    event Approval(address indexed owner, address indexed spender, uint value);
    event Transfer(address indexed from, address indexed to, uint value);

    function name() external view returns (string memory);
    function symbol() external view returns (string memory);
    function decimals() external view returns (uint8);
    function totalSupply() external view returns (uint);
    function balanceOf(address owner) external view returns (uint);
    function allowance(address owner, address spender) external view returns (uint);

    function approve(address spender, uint value) external returns (bool);
    function transfer(address to, uint value) external returns (bool);
    function transferFrom(address from, address to, uint value) external returns (bool);
}

@uniswap/v2-periphery/contracts/interfaces/IUniswapV2Router01.sol

pragma solidity >=0.6.2;

interface IUniswapV2Router01 {
    function factory() external pure returns (address);
    function WETH() external pure returns (address);

    function addLiquidity(
        address tokenA,
        address tokenB,
        uint amountADesired,
        uint amountBDesired,
        uint amountAMin,
        uint amountBMin,
        address to,
        uint deadline
    ) external returns (uint amountA, uint amountB, uint liquidity);
    function addLiquidityETH(
        address token,
        uint amountTokenDesired,
        uint amountTokenMin,
        uint amountETHMin,
        address to,
        uint deadline
    ) external payable returns (uint amountToken, uint amountETH, uint liquidity);
    function removeLiquidity(
        address tokenA,
        address tokenB,
        uint liquidity,
        uint amountAMin,
        uint amountBMin,
        address to,
        uint deadline
    ) external returns (uint amountA, uint amountB);
    function removeLiquidityETH(
        address token,
        uint liquidity,
        uint amountTokenMin,
        uint amountETHMin,
        address to,
        uint deadline
    ) external returns (uint amountToken, uint amountETH);
    function removeLiquidityWithPermit(
        address tokenA,
        address tokenB,
        uint liquidity,
        uint amountAMin,
        uint amountBMin,
        address to,
        uint deadline,
        bool approveMax, uint8 v, bytes32 r, bytes32 s
    ) external returns (uint amountA, uint amountB);
    function removeLiquidityETHWithPermit(
        address token,
        uint liquidity,
        uint amountTokenMin,
        uint amountETHMin,
        address to,
        uint deadline,
        bool approveMax, uint8 v, bytes32 r, bytes32 s
    ) external returns (uint amountToken, uint amountETH);
    function swapExactTokensForTokens(
        uint amountIn,
        uint amountOutMin,
        address[] calldata path,
        address to,
        uint deadline
    ) external returns (uint[] memory amounts);
    function swapTokensForExactTokens(
        uint amountOut,
        uint amountInMax,
        address[] calldata path,
        address to,
        uint deadline
    ) external returns (uint[] memory amounts);
    function swapExactETHForTokens(uint amountOutMin, address[] calldata path, address to, uint deadline)
        external
        payable
        returns (uint[] memory amounts);
    function swapTokensForExactETH(uint amountOut, uint amountInMax, address[] calldata path, address to, uint deadline)
        external
        returns (uint[] memory amounts);
    function swapExactTokensForETH(uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline)
        external
        returns (uint[] memory amounts);
    function swapETHForExactTokens(uint amountOut, address[] calldata path, address to, uint deadline)
        external
        payable
        returns (uint[] memory amounts);

    function quote(uint amountA, uint reserveA, uint reserveB) external pure returns (uint amountB);
    function getAmountOut(uint amountIn, uint reserveIn, uint reserveOut) external pure returns (uint amountOut);
    function getAmountIn(uint amountOut, uint reserveIn, uint reserveOut) external pure returns (uint amountIn);
    function getAmountsOut(uint amountIn, address[] calldata path) external view returns (uint[] memory amounts);
    function getAmountsIn(uint amountOut, address[] calldata path) external view returns (uint[] memory amounts);
}

@uniswap/v2-periphery/contracts/interfaces/IUniswapV2Router02.sol

pragma solidity >=0.6.2;

import './IUniswapV2Router01.sol';

interface IUniswapV2Router02 is IUniswapV2Router01 {
    function removeLiquidityETHSupportingFeeOnTransferTokens(
        address token,
        uint liquidity,
        uint amountTokenMin,
        uint amountETHMin,
        address to,
        uint deadline
    ) external returns (uint amountETH);
    function removeLiquidityETHWithPermitSupportingFeeOnTransferTokens(
        address token,
        uint liquidity,
        uint amountTokenMin,
        uint amountETHMin,
        address to,
        uint deadline,
        bool approveMax, uint8 v, bytes32 r, bytes32 s
    ) external returns (uint amountETH);

    function swapExactTokensForTokensSupportingFeeOnTransferTokens(
        uint amountIn,
        uint amountOutMin,
        address[] calldata path,
        address to,
        uint deadline
    ) external;
    function swapExactETHForTokensSupportingFeeOnTransferTokens(
        uint amountOutMin,
        address[] calldata path,
        address to,
        uint deadline
    ) external payable;
    function swapExactTokensForETHSupportingFeeOnTransferTokens(
        uint amountIn,
        uint amountOutMin,
        address[] calldata path,
        address to,
        uint deadline
    ) external;
}

@uniswap/v2-periphery/contracts/interfaces/IWETH.sol

pragma solidity >=0.5.0;

interface IWETH {
    function deposit() external payable;
    function transfer(address to, uint value) external returns (bool);
    function withdraw(uint) external;
}

contracts/CookDEXLiquidityLocker.sol

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.24;

import "@openzeppelin/contracts/security/ReentrancyGuard.sol";
import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
import "@openzeppelin/contracts/token/ERC721/IERC721.sol";
import "@openzeppelin/contracts/token/ERC721/IERC721Receiver.sol";

/// @notice Non-custodial-by-rule time locks for V2 LP tokens and V3 position NFTs.
contract CookDEXLiquidityLocker is ReentrancyGuard, IERC721Receiver {
    using SafeERC20 for IERC20;

    address public constant BURN_ADDRESS = 0x000000000000000000000000000000000000dEaD;
    uint256 public nextLockId = 1;

    struct Lock {
        address asset;
        address beneficiary;
        uint256 tokenId;
        uint256 amount;
        uint64 unlockTime;
        bool isNFT;
        bool released;
    }

    mapping(uint256 => Lock) public locks;

    event LiquidityLocked(uint256 indexed lockId, address indexed asset, address indexed beneficiary, uint256 tokenId, uint256 amount, uint64 unlockTime, bool isNFT);
    event LiquidityReleased(uint256 indexed lockId, address indexed beneficiary);
    event LiquidityBurned(address indexed asset, address indexed owner, uint256 tokenId, uint256 amount, bool isNFT);

    function lockERC20(address asset, uint256 amount, uint64 unlockTime, address beneficiary) external nonReentrant returns (uint256 lockId) {
        require(asset != address(0) && beneficiary != address(0), "ADDRESS_ZERO");
        require(amount > 0 && unlockTime > block.timestamp, "LOCK_INVALID");
        IERC20(asset).safeTransferFrom(msg.sender, address(this), amount);
        lockId = _store(asset, beneficiary, 0, amount, unlockTime, false);
    }

    function lockERC721(address asset, uint256 tokenId, uint64 unlockTime, address beneficiary) external nonReentrant returns (uint256 lockId) {
        require(asset != address(0) && beneficiary != address(0), "ADDRESS_ZERO");
        require(unlockTime > block.timestamp, "LOCK_INVALID");
        IERC721(asset).safeTransferFrom(msg.sender, address(this), tokenId);
        lockId = _store(asset, beneficiary, tokenId, 1, unlockTime, true);
    }

    function burnERC20(address asset, uint256 amount) external nonReentrant {
        require(asset != address(0) && amount > 0, "BURN_INVALID");
        IERC20(asset).safeTransferFrom(msg.sender, BURN_ADDRESS, amount);
        emit LiquidityBurned(asset, msg.sender, 0, amount, false);
    }

    function burnERC721(address asset, uint256 tokenId) external nonReentrant {
        require(asset != address(0), "ASSET_ZERO");
        IERC721(asset).transferFrom(msg.sender, BURN_ADDRESS, tokenId);
        emit LiquidityBurned(asset, msg.sender, tokenId, 1, true);
    }

    function release(uint256 lockId) external nonReentrant {
        Lock storage item = locks[lockId];
        require(!item.released && item.beneficiary == msg.sender, "NOT_BENEFICIARY");
        require(block.timestamp >= item.unlockTime, "LOCK_ACTIVE");
        item.released = true;
        if (item.isNFT) IERC721(item.asset).safeTransferFrom(address(this), msg.sender, item.tokenId);
        else IERC20(item.asset).safeTransfer(msg.sender, item.amount);
        emit LiquidityReleased(lockId, msg.sender);
    }

    function onERC721Received(address, address, uint256, bytes calldata) external pure returns (bytes4) {
        return IERC721Receiver.onERC721Received.selector;
    }

    function _store(address asset, address beneficiary, uint256 tokenId, uint256 amount, uint64 unlockTime, bool isNFT) internal returns (uint256 lockId) {
        lockId = nextLockId++;
        locks[lockId] = Lock(asset, beneficiary, tokenId, amount, unlockTime, isNFT, false);
        emit LiquidityLocked(lockId, asset, beneficiary, tokenId, amount, unlockTime, isNFT);
    }
}

contracts/CookDEXPresaleExtensions.sol

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.24;

import "@openzeppelin/contracts/security/ReentrancyGuard.sol";
import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
import "@openzeppelin/contracts/utils/cryptography/MerkleProof.sol";

interface ICookDEXReservedAirdrop {
    function token() external view returns(IERC20);
    function sourceCampaign() external view returns(address);
    function totalAllocation() external view returns(uint256);
    function claimStart() external view returns(uint64);
}
interface ICookDEXRelativeAirdrop {
    function token() external view returns(IERC20);
    function sourceCampaign() external view returns(address);
    function totalAllocation() external view returns(uint256);
    function startOffset() external view returns(uint64);
    function activate(uint64 anchor) external;
}

/// @notice Public multi-plan vesting vault. Team and investor plans are kept
/// separate and remain readable after the related presale has ended.
contract CookDEXVestingVaultV1 is ReentrancyGuard {
    using SafeERC20 for IERC20;
    struct Plan { bytes32 label; uint64 start; uint64 cliff; uint64 duration; uint64 interval; uint16 tgeBps; uint256 allocated; bool relative; bool exists; }
    struct Grant { uint256 allocation; uint256 claimed; }
    struct AirdropReserve { uint256 amount; uint64 claimStart; uint64 startOffset; address airdrop; bool released; bool relative; bool exists; }

    IERC20 public immutable token;
    address public immutable sourceCampaign;
    address public owner;
    bool public vestingSealed;
    uint256 public totalAllocated;
    uint256 public totalClaimed;
    uint256 public totalAirdropReleased;
    Plan[] public plans;
    mapping(uint256=>mapping(address=>Grant)) public grants;
    mapping(bytes32=>AirdropReserve) public airdropReserves;
    bytes32[] public airdropScheduleIds;
    uint256 public airdropExecutionCursor;
    uint256 public unboundAirdropCount;
    uint64 public scheduleAnchor;
    event PlanCreated(uint256 indexed planId,bytes32 indexed label,uint64 start,uint64 cliff,uint64 duration,uint64 interval,uint16 tgeBps);
    event GrantAdded(uint256 indexed planId,address indexed beneficiary,uint256 amount);
    event VestingSealed(uint256 totalAllocated);
    event TokensClaimed(uint256 indexed planId,address indexed beneficiary,uint256 amount);
    event OwnershipTransferred(address indexed previousOwner,address indexed nextOwner);
    event AirdropReserved(bytes32 indexed scheduleId,uint256 amount,uint64 claimStart);
    event AirdropReserveReleased(bytes32 indexed scheduleId,address indexed airdrop,uint256 amount);
    event AirdropContractBound(bytes32 indexed scheduleId,address indexed airdrop);
    event ScheduleAnchored(uint64 timestamp);

    constructor(address token_,address campaign_,address owner_){require(token_!=address(0)&&owner_!=address(0),"ADDRESS_ZERO");token=IERC20(token_);sourceCampaign=campaign_;owner=owner_;}
    modifier onlyOwner(){require(msg.sender==owner,"NOT_OWNER");_;}
    modifier beforeSeal(){require(!vestingSealed,"VESTING_SEALED");_;}
    function planCount() external view returns(uint256){return plans.length;}
    function createPlan(bytes32 label,uint64 start,uint64 cliff,uint64 duration,uint64 interval,uint16 tgeBps) external onlyOwner beforeSeal returns(uint256 planId){
        require(label!=bytes32(0)&&start>0&&duration>0&&interval>0&&interval<=duration&&tgeBps<=10_000,"PLAN_INVALID");
        require(cliff<=3650 days&&duration<=7300 days,"DURATION_INVALID");
        planId=plans.length;plans.push(Plan(label,start,cliff,duration,interval,tgeBps,0,false,true));emit PlanCreated(planId,label,start,cliff,duration,interval,tgeBps);
    }
    function createRelativePlan(bytes32 label,uint64 startOffset,uint64 cliff,uint64 duration,uint64 interval,uint16 tgeBps) external onlyOwner beforeSeal returns(uint256 planId){
        require(label!=bytes32(0)&&startOffset<=3650 days&&duration>0&&interval>0&&interval<=duration&&tgeBps<=10_000,"PLAN_INVALID");require(cliff<=3650 days&&duration<=7300 days,"DURATION_INVALID");
        planId=plans.length;plans.push(Plan(label,startOffset,cliff,duration,interval,tgeBps,0,true,true));emit PlanCreated(planId,label,startOffset,cliff,duration,interval,tgeBps);
    }
    function addGrants(uint256 planId,address[] calldata beneficiaries,uint256[] calldata amounts) external onlyOwner beforeSeal {
        require(planId<plans.length&&beneficiaries.length>0&&beneficiaries.length==amounts.length&&beneficiaries.length<=250,"GRANTS_INVALID");
        uint256 added;
        for(uint256 i;i<beneficiaries.length;i++){address account=beneficiaries[i];uint256 amount=amounts[i];require(account!=address(0)&&amount>0&&grants[planId][account].allocation==0,"GRANT_INVALID");grants[planId][account].allocation=amount;added+=amount;emit GrantAdded(planId,account,amount);}
        plans[planId].allocated+=added;totalAllocated+=added;
    }
    function reserveAirdrop(bytes32 scheduleId,uint256 amount,uint64 claimStart) external onlyOwner beforeSeal {
        require(scheduleId!=bytes32(0)&&amount>0&&claimStart>block.timestamp&&!airdropReserves[scheduleId].exists,"AIRDROP_RESERVE_INVALID");
        airdropReserves[scheduleId]=AirdropReserve(amount,claimStart,0,address(0),false,false,true);airdropScheduleIds.push(scheduleId);unboundAirdropCount++;totalAllocated+=amount;emit AirdropReserved(scheduleId,amount,claimStart);
    }
    function reserveRelativeAirdrop(bytes32 scheduleId,uint256 amount,uint64 startOffset) external onlyOwner beforeSeal {
        require(scheduleId!=bytes32(0)&&amount>0&&startOffset<=7300 days&&!airdropReserves[scheduleId].exists,"AIRDROP_RESERVE_INVALID");
        airdropReserves[scheduleId]=AirdropReserve(amount,0,startOffset,address(0),false,true,true);airdropScheduleIds.push(scheduleId);unboundAirdropCount++;totalAllocated+=amount;emit AirdropReserved(scheduleId,amount,startOffset);
    }
    function airdropScheduleCount() external view returns(uint256){return airdropScheduleIds.length;}
    function bindAirdropContract(bytes32 scheduleId,address airdrop) external onlyOwner beforeSeal {
        AirdropReserve storage reserve=airdropReserves[scheduleId];require(reserve.exists&&airdrop!=address(0)&&reserve.airdrop==address(0),"AIRDROP_BIND_INVALID");
        if(reserve.relative){ICookDEXRelativeAirdrop target=ICookDEXRelativeAirdrop(airdrop);require(address(target.token())==address(token)&&target.sourceCampaign()==sourceCampaign&&target.totalAllocation()==reserve.amount&&target.startOffset()==reserve.startOffset,"AIRDROP_MISMATCH");}
        else{ICookDEXReservedAirdrop target=ICookDEXReservedAirdrop(airdrop);require(address(target.token())==address(token)&&target.sourceCampaign()==sourceCampaign&&target.totalAllocation()==reserve.amount&&target.claimStart()==reserve.claimStart,"AIRDROP_MISMATCH");}
        reserve.airdrop=airdrop;unboundAirdropCount--;emit AirdropContractBound(scheduleId,airdrop);
    }
    function seal() external onlyOwner beforeSeal {require(totalAllocated>0&&token.balanceOf(address(this))>=totalAllocated,"FUNDING_LOW");require(unboundAirdropCount==0,"AIRDROP_UNBOUND");vestingSealed=true;emit VestingSealed(totalAllocated);}
    function vestedAmount(uint256 planId,address beneficiary,uint64 timestamp) public view returns(uint256){
        require(planId<plans.length,"PLAN_UNKNOWN");Plan memory plan=plans[planId];uint256 allocation=grants[planId][beneficiary].allocation;uint64 start=plan.relative?(scheduleAnchor==0?type(uint64).max:scheduleAnchor+plan.start):plan.start;if(allocation==0||timestamp<start)return 0;
        uint256 tge=allocation*plan.tgeBps/10_000;if(timestamp<start+plan.cliff)return tge;
        uint256 elapsed=timestamp-(start+plan.cliff);if(elapsed>=plan.duration)return allocation;
        elapsed=elapsed/plan.interval*plan.interval;return tge+(allocation-tge)*elapsed/plan.duration;
    }
    function claimable(uint256 planId,address beneficiary) public view returns(uint256){uint256 vested=vestedAmount(planId,beneficiary,uint64(block.timestamp));uint256 paid=grants[planId][beneficiary].claimed;return vested>paid?vested-paid:0;}
    function claim(uint256 planId) external nonReentrant {require(vestingSealed,"NOT_ACTIVE");uint256 amount=claimable(planId,msg.sender);require(amount>0,"NOTHING_TO_CLAIM");grants[planId][msg.sender].claimed+=amount;totalClaimed+=amount;token.safeTransfer(msg.sender,amount);emit TokensClaimed(planId,msg.sender,amount);}
    function anchorAfterPresale() public {
        require(vestingSealed&&scheduleAnchor==0,"ANCHOR_UNAVAILABLE");
        if(sourceCampaign!=address(0)){(bool ok,bytes memory value)=sourceCampaign.staticcall(abi.encodeWithSignature("finalized()"));require(ok&&value.length>=32&&abi.decode(value,(bool)),"PRESALE_NOT_FINALIZED");}
        scheduleAnchor=uint64(block.timestamp);emit ScheduleAnchored(scheduleAnchor);
    }
    function executeAirdropReserve(bytes32 scheduleId) public nonReentrant {
        AirdropReserve storage reserve=airdropReserves[scheduleId];require(vestingSealed&&reserve.exists&&!reserve.released&&reserve.airdrop!=address(0),"AIRDROP_RELEASE_INVALID");
        if(reserve.relative){require(scheduleAnchor!=0,"SCHEDULE_NOT_ANCHORED");ICookDEXRelativeAirdrop(reserve.airdrop).activate(scheduleAnchor);}
        reserve.released=true;totalAirdropReleased+=reserve.amount;token.safeTransfer(reserve.airdrop,reserve.amount);emit AirdropReserveReleased(scheduleId,reserve.airdrop,reserve.amount);
    }
    function executeScheduledAirdrops(uint256 maxCount) external nonReentrant {
        require(vestingSealed&&maxCount>0&&maxCount<=100,"BATCH_INVALID");uint256 cursor=airdropExecutionCursor;uint256 end=cursor+maxCount;if(end>airdropScheduleIds.length)end=airdropScheduleIds.length;
        while(cursor<end){bytes32 scheduleId=airdropScheduleIds[cursor];AirdropReserve storage reserve=airdropReserves[scheduleId];if(!reserve.released&&reserve.airdrop!=address(0)){if(reserve.relative&&scheduleAnchor==0)break;if(reserve.relative)ICookDEXRelativeAirdrop(reserve.airdrop).activate(scheduleAnchor);reserve.released=true;totalAirdropReleased+=reserve.amount;token.safeTransfer(reserve.airdrop,reserve.amount);emit AirdropReserveReleased(scheduleId,reserve.airdrop,reserve.amount);}cursor++;}
        airdropExecutionCursor=cursor;
    }
    function recoverExcess(address to,uint256 amount) external onlyOwner {require(to!=address(0),"ADDRESS_ZERO");uint256 reserved=totalAllocated-totalClaimed-totalAirdropReleased;uint256 balance=token.balanceOf(address(this));require(balance>=reserved&&amount<=balance-reserved,"RESERVED_TOKENS");token.safeTransfer(to,amount);}
    function transferOwnership(address next) external onlyOwner {require(next!=address(0),"ADDRESS_ZERO");emit OwnershipTransferred(owner,next);owner=next;}
}

contract CookDEXVestingModuleV1 {
    event VestingVaultCreated(address indexed vault,address indexed token,address indexed owner,address sourceCampaign);
    function createVesting(address token,address sourceCampaign) external returns(address vault){vault=address(new CookDEXVestingVaultV1(token,sourceCampaign,msg.sender));emit VestingVaultCreated(vault,token,msg.sender,sourceCampaign);}
}

/// @notice Claim-based airdrop. Eligibility modes (CSV, registration,
/// historical holders, snapshot holders or deterministic random selection)
/// are calculated off-chain and committed immutably through the Merkle root.
contract CookDEXAirdropV1 is ReentrancyGuard {
    using SafeERC20 for IERC20;
    IERC20 public immutable token;
    address public immutable owner;
    address public immutable sourceCampaign;
    bytes32 public immutable merkleRoot;
    bytes32 public immutable selectionCommitment;
    uint8 public immutable eligibilityMode;
    uint64 public immutable claimStart;
    uint64 public immutable claimEnd;
    uint256 public immutable totalAllocation;
    uint256 public totalClaimed;
    mapping(uint256=>uint256) private claimedBitMap;
    event Claimed(uint256 indexed index,address indexed account,uint256 amount);
    event UnclaimedRecovered(address indexed to,uint256 amount);
    constructor(address token_,address owner_,address campaign_,bytes32 root_,bytes32 selectionCommitment_,uint8 mode_,uint64 start_,uint64 end_,uint256 total_){
        require(token_!=address(0)&&owner_!=address(0)&&root_!=bytes32(0)&&start_<end_&&total_>0,"CONFIG_INVALID");
        token=IERC20(token_);owner=owner_;sourceCampaign=campaign_;merkleRoot=root_;selectionCommitment=selectionCommitment_;eligibilityMode=mode_;claimStart=start_;claimEnd=end_;totalAllocation=total_;
    }
    function isClaimed(uint256 index) public view returns(bool){uint256 word=claimedBitMap[index/256];uint256 mask=1<<(index%256);return word&mask==mask;}
    function claim(uint256 index,address account,uint256 amount,bytes32[] calldata proof) external nonReentrant {
        require(block.timestamp>=claimStart&&block.timestamp<=claimEnd&&!isClaimed(index)&&account!=address(0),"CLAIM_UNAVAILABLE");
        bytes32 leaf=keccak256(bytes.concat(keccak256(abi.encode(index,account,amount))));require(MerkleProof.verify(proof,merkleRoot,leaf),"PROOF_INVALID");
        claimedBitMap[index/256]|=1<<(index%256);totalClaimed+=amount;require(totalClaimed<=totalAllocation,"ALLOCATION_EXCEEDED");token.safeTransfer(account,amount);emit Claimed(index,account,amount);
    }
    function recoverUnclaimed(address to) external nonReentrant {require(msg.sender==owner&&block.timestamp>claimEnd&&to!=address(0),"RECOVERY_UNAVAILABLE");uint256 amount=token.balanceOf(address(this));token.safeTransfer(to,amount);emit UnclaimedRecovered(to,amount);}
}

/// @notice Vesting-bound airdrop whose claim window is anchored to the actual
/// presale finalization time. Only its immutable vesting vault may activate it.
contract CookDEXScheduledAirdropV1 is ReentrancyGuard {
    using SafeERC20 for IERC20;
    IERC20 public immutable token;
    address public immutable owner;
    address public immutable sourceCampaign;
    address public immutable vestingVault;
    bytes32 public immutable merkleRoot;
    bytes32 public immutable selectionCommitment;
    uint8 public immutable eligibilityMode;
    uint64 public immutable startOffset;
    uint64 public immutable claimDuration;
    uint256 public immutable totalAllocation;
    uint64 public claimStart;
    uint64 public claimEnd;
    uint256 public totalClaimed;
    mapping(uint256=>uint256) private claimedBitMap;
    event Activated(uint64 indexed anchor,uint64 claimStart,uint64 claimEnd);
    event Claimed(uint256 indexed index,address indexed account,uint256 amount);
    event UnclaimedRecovered(address indexed to,uint256 amount);
    constructor(address token_,address owner_,address campaign_,address vault_,bytes32 root_,bytes32 commitment_,uint8 mode_,uint64 offset_,uint64 duration_,uint256 total_){
        require(token_!=address(0)&&owner_!=address(0)&&vault_!=address(0)&&root_!=bytes32(0)&&duration_>0&&total_>0,"CONFIG_INVALID");
        token=IERC20(token_);owner=owner_;sourceCampaign=campaign_;vestingVault=vault_;merkleRoot=root_;selectionCommitment=commitment_;eligibilityMode=mode_;startOffset=offset_;claimDuration=duration_;totalAllocation=total_;
    }
    function activate(uint64 anchor) external {require(msg.sender==vestingVault&&claimStart==0&&anchor>0,"ACTIVATION_UNAVAILABLE");claimStart=anchor+startOffset;claimEnd=claimStart+claimDuration;emit Activated(anchor,claimStart,claimEnd);}
    function isClaimed(uint256 index) public view returns(bool){uint256 word=claimedBitMap[index/256];uint256 mask=1<<(index%256);return word&mask==mask;}
    function claim(uint256 index,address account,uint256 amount,bytes32[] calldata proof) external nonReentrant {
        require(claimStart>0&&block.timestamp>=claimStart&&block.timestamp<=claimEnd&&!isClaimed(index)&&account!=address(0),"CLAIM_UNAVAILABLE");
        bytes32 leaf=keccak256(bytes.concat(keccak256(abi.encode(index,account,amount))));require(MerkleProof.verify(proof,merkleRoot,leaf),"PROOF_INVALID");
        claimedBitMap[index/256]|=1<<(index%256);totalClaimed+=amount;require(totalClaimed<=totalAllocation,"ALLOCATION_EXCEEDED");token.safeTransfer(account,amount);emit Claimed(index,account,amount);
    }
    function recoverUnclaimed(address to) external nonReentrant {require(msg.sender==owner&&claimEnd>0&&block.timestamp>claimEnd&&to!=address(0),"RECOVERY_UNAVAILABLE");uint256 amount=token.balanceOf(address(this));token.safeTransfer(to,amount);emit UnclaimedRecovered(to,amount);}
}

contract CookDEXAirdropModuleV1 {
    event AirdropCreated(address indexed airdrop,address indexed token,address indexed owner,address sourceCampaign,uint8 mode);
    function createAirdrop(address token,address sourceCampaign,bytes32 root,bytes32 selectionCommitment,uint8 mode,uint64 start,uint64 end,uint256 totalAllocation) external returns(address airdrop){
        airdrop=address(new CookDEXAirdropV1(token,msg.sender,sourceCampaign,root,selectionCommitment,mode,start,end,totalAllocation));emit AirdropCreated(airdrop,token,msg.sender,sourceCampaign,mode);
    }
    function createScheduledAirdrop(address token,address sourceCampaign,address vestingVault,bytes32 root,bytes32 selectionCommitment,uint8 mode,uint64 startOffset,uint64 claimDuration,uint256 totalAllocation) external returns(address airdrop){
        airdrop=address(new CookDEXScheduledAirdropV1(token,msg.sender,sourceCampaign,vestingVault,root,selectionCommitment,mode,startOffset,claimDuration,totalAllocation));emit AirdropCreated(airdrop,token,msg.sender,sourceCampaign,mode);
    }
}

contracts/CookDEXV2FeeVault.sol

// SPDX-License-Identifier: GPL-2.0-or-later
pragma solidity ^0.8.24;

import "@openzeppelin/contracts/access/Ownable2Step.sol";
import "@openzeppelin/contracts/security/ReentrancyGuard.sol";
import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";

interface ICookDEXV2Factory {
    function getPair(address tokenA, address tokenB) external view returns (address);
}

interface ICookDEXV2Pair is IERC20 {
    function token0() external view returns (address);
    function token1() external view returns (address);
}

/// @notice Distributes V2 protocol LP tokens without changing the V2 pair ABI.
/// @dev The factory feeTo must point at this vault. LP trading fees remain in
///      pool reserves; only protocol LP minted by the standard V2 pair is split.
contract CookDEXV2FeeVault is Ownable2Step, ReentrancyGuard {
    using SafeERC20 for IERC20;

    uint16 public constant BPS = 10_000;
    ICookDEXV2Factory public immutable factory;
    address public adminWallet;
    address public treasuryWallet;
    uint16 public adminShareBps = 5_000;
    uint16 public controllerShareBps = 3_000;
    uint16 public treasuryShareBps = 2_000;

    mapping(address => address) public poolController;
    mapping(address => uint256) public distributedProtocolLiquidity;

    event WalletsChanged(address indexed adminWallet, address indexed treasuryWallet);
    event FeeSplitChanged(uint16 adminShareBps, uint16 controllerShareBps, uint16 treasuryShareBps);
    event PoolControllerChanged(address indexed pair, address indexed previousController, address indexed controller);
    event ProtocolFeesDistributed(address indexed pair, uint256 total, uint256 adminAmount, uint256 controllerAmount, uint256 treasuryAmount);

    constructor(address factory_, address owner_, address adminWallet_, address treasuryWallet_) {
        require(factory_ != address(0), "FACTORY_ZERO");
        factory = ICookDEXV2Factory(factory_);
        _transferOwnership(owner_);
        _setWallets(adminWallet_, treasuryWallet_);
    }

    /// @notice Lets the initial majority LP provider register as controller.
    function registerPoolController(address pair) external {
        require(poolController[pair] == address(0), "CONTROLLER_SET");
        ICookDEXV2Pair candidate = ICookDEXV2Pair(pair);
        require(factory.getPair(candidate.token0(), candidate.token1()) == pair, "FOREIGN_PAIR");
        uint256 supply = candidate.totalSupply();
        require(supply > 0 && candidate.balanceOf(msg.sender) * 2 >= supply, "NOT_MAJORITY_LP");
        _setPoolController(pair, msg.sender);
    }

    function setPoolController(address pair, address controller) external {
        require(msg.sender == owner() || msg.sender == poolController[pair], "NOT_AUTHORIZED");
        _validatePair(pair);
        _setPoolController(pair, controller);
    }

    function setWallets(address adminWallet_, address treasuryWallet_) external onlyOwner {
        _setWallets(adminWallet_, treasuryWallet_);
    }

    function setFeeSplit(uint16 adminBps, uint16 controllerBps, uint16 treasuryBps) external onlyOwner {
        require(uint256(adminBps) + controllerBps + treasuryBps == BPS, "SPLIT_TOTAL");
        adminShareBps = adminBps;
        controllerShareBps = controllerBps;
        treasuryShareBps = treasuryBps;
        emit FeeSplitChanged(adminBps, controllerBps, treasuryBps);
    }

    function claimable(address pair) public view returns (uint256) {
        return IERC20(pair).balanceOf(address(this));
    }

    function distribute(address pair) external nonReentrant returns (uint256 total) {
        _validatePair(pair);
        address controller = poolController[pair];
        require(controller != address(0), "CONTROLLER_MISSING");
        total = claimable(pair);
        require(total > 0, "NO_PROTOCOL_FEES");

        uint256 adminAmount = total * adminShareBps / BPS;
        uint256 controllerAmount = total * controllerShareBps / BPS;
        uint256 treasuryAmount = total - adminAmount - controllerAmount;
        IERC20 lp = IERC20(pair);
        if (adminAmount > 0) lp.safeTransfer(adminWallet, adminAmount);
        if (controllerAmount > 0) lp.safeTransfer(controller, controllerAmount);
        if (treasuryAmount > 0) lp.safeTransfer(treasuryWallet, treasuryAmount);
        distributedProtocolLiquidity[pair] += total;
        emit ProtocolFeesDistributed(pair, total, adminAmount, controllerAmount, treasuryAmount);
    }

    function _validatePair(address pair) internal view {
        require(pair != address(0), "PAIR_ZERO");
        ICookDEXV2Pair candidate = ICookDEXV2Pair(pair);
        require(factory.getPair(candidate.token0(), candidate.token1()) == pair, "FOREIGN_PAIR");
    }

    function _setPoolController(address pair, address controller) internal {
        require(controller != address(0), "CONTROLLER_ZERO");
        address previous = poolController[pair];
        poolController[pair] = controller;
        emit PoolControllerChanged(pair, previous, controller);
    }

    function _setWallets(address adminWallet_, address treasuryWallet_) internal {
        require(adminWallet_ != address(0) && treasuryWallet_ != address(0), "WALLET_ZERO");
        adminWallet = adminWallet_;
        treasuryWallet = treasuryWallet_;
        emit WalletsChanged(adminWallet_, treasuryWallet_);
    }
}

contracts/CookDEXV3FeeManager.sol

// SPDX-License-Identifier: GPL-2.0-or-later
pragma solidity ^0.8.24;

import "@openzeppelin/contracts/access/Ownable2Step.sol";
import "@openzeppelin/contracts/security/ReentrancyGuard.sol";
import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";

interface ICookDEXV3Factory {
    function getPool(address tokenA, address tokenB, uint24 fee) external view returns (address);
    function setOwner(address owner) external;
}

interface ICookDEXV3Pool {
    function token0() external view returns (address);
    function token1() external view returns (address);
    function fee() external view returns (uint24);
    function setFeeProtocol(uint8 feeProtocol0, uint8 feeProtocol1) external;
    function collectProtocol(address recipient, uint128 amount0Requested, uint128 amount1Requested)
        external returns (uint128 amount0, uint128 amount1);
}

interface ICookDEXV3PositionManager {
    function ownerOf(uint256 tokenId) external view returns (address);
    function positions(uint256 tokenId) external view returns (
        uint96 nonce,
        address operator,
        address token0,
        address token1,
        uint24 fee,
        int24 tickLower,
        int24 tickUpper,
        uint128 liquidity,
        uint256 feeGrowthInside0LastX128,
        uint256 feeGrowthInside1LastX128,
        uint128 tokensOwed0,
        uint128 tokensOwed1
    );
}

/// @notice Owns the V3 factory, collects protocol fees and applies CookDEX's split.
contract CookDEXV3FeeManager is Ownable2Step, ReentrancyGuard {
    using SafeERC20 for IERC20;

    uint16 public constant BPS = 10_000;
    ICookDEXV3Factory public immutable factory;
    ICookDEXV3PositionManager public immutable positionManager;
    address public adminWallet;
    address public treasuryWallet;
    uint16 public adminShareBps = 5_000;
    uint16 public controllerShareBps = 3_000;
    uint16 public treasuryShareBps = 2_000;
    uint8 public defaultProtocolFee0 = 4;
    uint8 public defaultProtocolFee1 = 4;
    mapping(address => address) public poolController;

    event WalletsChanged(address indexed adminWallet, address indexed treasuryWallet);
    event FeeSplitChanged(uint16 adminShareBps, uint16 controllerShareBps, uint16 treasuryShareBps);
    event PoolControllerChanged(address indexed pool, address indexed previousController, address indexed controller);
    event ProtocolFeesDistributed(address indexed pool, address token0, address token1, uint256 amount0, uint256 amount1);
    event DefaultProtocolFeeChanged(uint8 token0Fee, uint8 token1Fee);

    constructor(address factory_, address positionManager_, address owner_, address adminWallet_, address treasuryWallet_) {
        require(factory_ != address(0) && positionManager_ != address(0), "CONFIG_ZERO");
        factory = ICookDEXV3Factory(factory_);
        positionManager = ICookDEXV3PositionManager(positionManager_);
        _transferOwnership(owner_);
        _setWallets(adminWallet_, treasuryWallet_);
    }

    function registerPoolController(uint256 positionTokenId) external {
        require(positionManager.ownerOf(positionTokenId) == msg.sender, "NOT_POSITION_OWNER");
        (,, address token0, address token1, uint24 fee,,,,,,,) = positionManager.positions(positionTokenId);
        address pool = factory.getPool(token0, token1, fee);
        require(pool != address(0), "POOL_MISSING");
        require(poolController[pool] == address(0), "CONTROLLER_SET");
        _setPoolController(pool, msg.sender);
        ICookDEXV3Pool(pool).setFeeProtocol(defaultProtocolFee0, defaultProtocolFee1);
    }

    function setPoolController(address pool, address controller) external {
        require(msg.sender == owner() || msg.sender == poolController[pool], "NOT_AUTHORIZED");
        _validatePool(pool);
        _setPoolController(pool, controller);
    }

    function configurePoolProtocolFee(address pool, uint8 token0Fee, uint8 token1Fee) external onlyOwner {
        _validatePool(pool);
        ICookDEXV3Pool(pool).setFeeProtocol(token0Fee, token1Fee);
    }

    function setDefaultProtocolFee(uint8 token0Fee, uint8 token1Fee) external onlyOwner {
        require(_validProtocolFee(token0Fee) && _validProtocolFee(token1Fee), "PROTOCOL_FEE");
        defaultProtocolFee0 = token0Fee;
        defaultProtocolFee1 = token1Fee;
        emit DefaultProtocolFeeChanged(token0Fee, token1Fee);
    }

    function collectAndDistribute(address pool) external nonReentrant returns (uint128 amount0, uint128 amount1) {
        _validatePool(pool);
        address controller = poolController[pool];
        require(controller != address(0), "CONTROLLER_MISSING");
        ICookDEXV3Pool candidate = ICookDEXV3Pool(pool);
        address token0 = candidate.token0();
        address token1 = candidate.token1();
        (amount0, amount1) = candidate.collectProtocol(address(this), type(uint128).max, type(uint128).max);
        require(amount0 > 0 || amount1 > 0, "NO_PROTOCOL_FEES");
        _splitToken(token0, amount0, controller);
        _splitToken(token1, amount1, controller);
        emit ProtocolFeesDistributed(pool, token0, token1, amount0, amount1);
    }

    function setWallets(address adminWallet_, address treasuryWallet_) external onlyOwner {
        _setWallets(adminWallet_, treasuryWallet_);
    }

    function setFeeSplit(uint16 adminBps, uint16 controllerBps, uint16 treasuryBps) external onlyOwner {
        require(uint256(adminBps) + controllerBps + treasuryBps == BPS, "SPLIT_TOTAL");
        adminShareBps = adminBps;
        controllerShareBps = controllerBps;
        treasuryShareBps = treasuryBps;
        emit FeeSplitChanged(adminBps, controllerBps, treasuryBps);
    }

    function transferFactoryOwnership(address newOwner) external onlyOwner {
        require(newOwner != address(0), "OWNER_ZERO");
        factory.setOwner(newOwner);
    }

    function _splitToken(address token, uint256 amount, address controller) internal {
        if (amount == 0) return;
        uint256 adminAmount = amount * adminShareBps / BPS;
        uint256 controllerAmount = amount * controllerShareBps / BPS;
        uint256 treasuryAmount = amount - adminAmount - controllerAmount;
        IERC20 asset = IERC20(token);
        if (adminAmount > 0) asset.safeTransfer(adminWallet, adminAmount);
        if (controllerAmount > 0) asset.safeTransfer(controller, controllerAmount);
        if (treasuryAmount > 0) asset.safeTransfer(treasuryWallet, treasuryAmount);
    }

    function _validatePool(address pool) internal view {
        require(pool != address(0), "POOL_ZERO");
        ICookDEXV3Pool candidate = ICookDEXV3Pool(pool);
        require(factory.getPool(candidate.token0(), candidate.token1(), candidate.fee()) == pool, "FOREIGN_POOL");
    }

    function _setPoolController(address pool, address controller) internal {
        require(controller != address(0), "CONTROLLER_ZERO");
        address previous = poolController[pool];
        poolController[pool] = controller;
        emit PoolControllerChanged(pool, previous, controller);
    }

    function _setWallets(address adminWallet_, address treasuryWallet_) internal {
        require(adminWallet_ != address(0) && treasuryWallet_ != address(0), "WALLET_ZERO");
        adminWallet = adminWallet_;
        treasuryWallet = treasuryWallet_;
        emit WalletsChanged(adminWallet_, treasuryWallet_);
    }

    function _validProtocolFee(uint8 value) internal pure returns (bool) {
        return value == 0 || (value >= 4 && value <= 10);
    }
}

contracts/test/MockLayerZeroEndpointV2.sol

// SPDX-License-Identifier: MIT
pragma solidity 0.8.24;

contract MockLayerZeroEndpointV2 {
    mapping(address => address) public delegates;

    function setDelegate(address delegate_) external {
        delegates[msg.sender] = delegate_;
    }
}

contracts/test/MockLiquidityAssets.sol

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.24;

import "@openzeppelin/contracts/token/ERC20/ERC20.sol";
import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
import "@openzeppelin/contracts/token/ERC721/ERC721.sol";

contract MockLPToken is ERC20 {
    constructor() ERC20("Mock LP", "MLP") { _mint(msg.sender, 1_000_000 ether); }
}

contract MockPositionNFT is ERC721 {
    constructor() ERC721("Mock Position", "MPOS") {}
    function mint(address to, uint256 tokenId) external { _mint(to, tokenId); }
}

contract MockSwapToken is ERC20 {
    constructor(string memory name_, string memory symbol_) ERC20(name_, symbol_) {}
    function mint(address to, uint256 amount) external { _mint(to, amount); }
}

contract MockLimitV2Router {
    using SafeERC20 for IERC20;

    function swapExactTokensForTokensSupportingFeeOnTransferTokens(
        uint256 amountIn,
        uint256 amountOutMin,
        address[] calldata path,
        address to,
        uint256
    ) external {
        IERC20(path[0]).safeTransferFrom(msg.sender, address(this), amountIn);
        uint256 amountOut = amountIn * 2;
        require(amountOut >= amountOutMin, "OUTPUT_LOW");
        IERC20(path[path.length - 1]).safeTransfer(to, amountOut);
    }
}

contracts/test/MockPresaleDex.sol

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.24;

import "@openzeppelin/contracts/token/ERC20/ERC20.sol";
import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";

contract MockPresaleLP is ERC20 {
    constructor() ERC20("Presale LP", "PLP") {}
    function mint(address to, uint256 amount) external { _mint(to, amount); }
}

contract MockPresaleWETH is ERC20 {
    constructor() ERC20("Wrapped Native", "WNATIVE") {}
    function deposit() external payable { _mint(msg.sender, msg.value); }
}

contract MockPresaleV2Factory {
    address public pair;
    function setPair(address value) external { pair = value; }
    function getPair(address, address) external view returns (address) { return pair; }
}

contract MockPresaleV2Router {
    using SafeERC20 for IERC20;
    address public immutable factory;
    constructor(address factory_) { factory = factory_; }
    function addLiquidityETH(address token, uint256 tokenDesired, uint256, uint256, address to, uint256)
        external payable returns (uint256, uint256, uint256 liquidity)
    {
        IERC20(token).safeTransferFrom(msg.sender, address(this), tokenDesired);
        liquidity = msg.value < tokenDesired ? msg.value : tokenDesired;
        MockPresaleLP(MockPresaleV2Factory(factory).pair()).mint(to, liquidity);
        return (tokenDesired, msg.value, liquidity);
    }
}

contracts/tokens/CookDEXPresaleToken.sol

// SPDX-License-Identifier: MIT
pragma solidity 0.8.24;

import "@openzeppelin/contracts/token/ERC20/ERC20.sol";
import "@openzeppelin/contracts/access/AccessControl.sol";

/// @notice Token template for presales with selectable decimals and a
/// separately revocable mint role for optional staking rewards.
contract CookDEXPresaleToken is ERC20, AccessControl {
    bytes32 public constant MINTER_ROLE = keccak256("MINTER_ROLE");
    uint8 private immutable _tokenDecimals;
    uint256 public immutable maxSupply;
    string public constant createdBy = "CookDEX";
    string public constant tokenTemplate = "CookDEX Presale Token";

    constructor(
        string memory name_,
        string memory symbol_,
        uint8 decimals_,
        uint256 initialSupply_,
        uint256 maxSupply_,
        address recipient_,
        address payable platformFeeReceiver_,
        uint256 requiredPlatformFee_
    ) payable ERC20(name_, symbol_) {
        require(recipient_ != address(0), "RECIPIENT_ZERO");
        require(decimals_ >= 6 && decimals_ <= 18, "DECIMALS_INVALID");
        require(initialSupply_ > 0 && maxSupply_ >= initialSupply_, "SUPPLY_INVALID");
        require(msg.value == requiredPlatformFee_, "FEE_INVALID");
        _tokenDecimals = decimals_;
        maxSupply = maxSupply_ * 10 ** decimals_;
        _grantRole(DEFAULT_ADMIN_ROLE, recipient_);
        _mint(recipient_, initialSupply_ * 10 ** decimals_);
        if(requiredPlatformFee_>0){(bool paid,)=platformFeeReceiver_.call{value:requiredPlatformFee_}("");require(paid,"FEE_FAILED");}
    }

    function decimals() public view override returns (uint8) { return _tokenDecimals; }

    function mint(address to, uint256 amount) external onlyRole(MINTER_ROLE) {
        require(to != address(0) && totalSupply() + amount <= maxSupply, "MINT_INVALID");
        _mint(to, amount);
    }

}

contracts/tokens/CookDEXStandardToken.sol

// SPDX-License-Identifier: MIT
pragma solidity 0.8.24;

import "@openzeppelin/contracts/token/ERC20/ERC20.sol";
import "@openzeppelin/contracts/access/Ownable.sol";

contract CookDEXStandardToken is ERC20, Ownable {
    string public createdBy;
    string public tokenTemplate;
    string public creatorInformation;

    constructor(
        string memory name_,
        string memory symbol_,
        uint256 supply_,
        address recipient_,
        string memory creatorInformation_,
        bool whiteLabel_,
        address payable platformFeeReceiver_,
        uint256 requiredPlatformFee_
    ) payable ERC20(name_, symbol_) {
        require(recipient_ != address(0), "Invalid recipient");
        require(supply_ > 0, "Supply is zero");
        require(msg.value == requiredPlatformFee_, "Incorrect platform fee");
        creatorInformation = creatorInformation_;
        createdBy = whiteLabel_ ? "" : "CookDEX";
        tokenTemplate = whiteLabel_ ? "" : "CookDEX Standard Token";
        _mint(recipient_, supply_ * 10 ** decimals());
        _transferOwnership(recipient_);
        if (requiredPlatformFee_ > 0) {
            (bool paid, ) = platformFeeReceiver_.call{value: requiredPlatformFee_}("");
            require(paid, "Platform fee failed");
        }
    }
}

contracts/tokens/CookDEXTokenDeployer.sol

// SPDX-License-Identifier: MIT
pragma solidity 0.8.24;

/// @notice Deterministic CREATE3 deployment for CookDEX token templates.
/// @dev The caller is part of the salt namespace, so one user cannot reserve
///      another user's token address.
contract CookDEXTokenDeployer {
    bytes private constant PROXY_BYTECODE = hex"67363d3d37363d34f03d5260086018f3";
    bytes32 private constant PROXY_BYTECODE_HASH = keccak256(PROXY_BYTECODE);

    event ContractDeployed(address indexed creator, bytes32 indexed salt, address indexed deployed);

    function deploy(bytes32 salt, bytes calldata creationCode) external payable returns (address deployed) {
        require(creationCode.length != 0, "Empty creation code");
        bytes32 namespacedSalt = keccak256(abi.encodePacked(msg.sender, salt));
        address proxy;
        bytes memory proxyBytecode = PROXY_BYTECODE;
        assembly {
            proxy := create2(0, add(proxyBytecode, 0x20), mload(proxyBytecode), namespacedSalt)
        }
        require(proxy != address(0), "Salt already used");
        (bool success, ) = proxy.call{value: msg.value}(creationCode);
        require(success, "Deployment failed");
        deployed = getDeployed(msg.sender, salt);
        require(deployed.code.length != 0, "No contract deployed");
        emit ContractDeployed(msg.sender, salt, deployed);
    }

    function getDeployed(address creator, bytes32 salt) public view returns (address deployed) {
        bytes32 namespacedSalt = keccak256(abi.encodePacked(creator, salt));
        address proxy = address(uint160(uint256(keccak256(abi.encodePacked(
            bytes1(0xff), address(this), namespacedSalt, PROXY_BYTECODE_HASH
        )))));
        deployed = address(uint160(uint256(keccak256(abi.encodePacked(hex"d694", proxy, hex"01")))));
    }
}

Contract ABI

[
  {
    "inputs": [
      {
        "internalType": "address",
        "name": "factory_",
        "type": "address"
      },
      {
        "internalType": "address",
        "name": "owner_",
        "type": "address"
      },
      {
        "internalType": "address",
        "name": "adminWallet_",
        "type": "address"
      },
      {
        "internalType": "address",
        "name": "treasuryWallet_",
        "type": "address"
      }
    ],
    "stateMutability": "nonpayable",
    "type": "constructor"
  },
  {
    "anonymous": false,
    "inputs": [
      {
        "indexed": false,
        "internalType": "uint16",
        "name": "adminShareBps",
        "type": "uint16"
      },
      {
        "indexed": false,
        "internalType": "uint16",
        "name": "controllerShareBps",
        "type": "uint16"
      },
      {
        "indexed": false,
        "internalType": "uint16",
        "name": "treasuryShareBps",
        "type": "uint16"
      }
    ],
    "name": "FeeSplitChanged",
    "type": "event"
  },
  {
    "anonymous": false,
    "inputs": [
      {
        "indexed": true,
        "internalType": "address",
        "name": "previousOwner",
        "type": "address"
      },
      {
        "indexed": true,
        "internalType": "address",
        "name": "newOwner",
        "type": "address"
      }
    ],
    "name": "OwnershipTransferStarted",
    "type": "event"
  },
  {
    "anonymous": false,
    "inputs": [
      {
        "indexed": true,
        "internalType": "address",
        "name": "previousOwner",
        "type": "address"
      },
      {
        "indexed": true,
        "internalType": "address",
        "name": "newOwner",
        "type": "address"
      }
    ],
    "name": "OwnershipTransferred",
    "type": "event"
  },
  {
    "anonymous": false,
    "inputs": [
      {
        "indexed": true,
        "internalType": "address",
        "name": "pair",
        "type": "address"
      },
      {
        "indexed": true,
        "internalType": "address",
        "name": "previousController",
        "type": "address"
      },
      {
        "indexed": true,
        "internalType": "address",
        "name": "controller",
        "type": "address"
      }
    ],
    "name": "PoolControllerChanged",
    "type": "event"
  },
  {
    "anonymous": false,
    "inputs": [
      {
        "indexed": true,
        "internalType": "address",
        "name": "pair",
        "type": "address"
      },
      {
        "indexed": false,
        "internalType": "uint256",
        "name": "total",
        "type": "uint256"
      },
      {
        "indexed": false,
        "internalType": "uint256",
        "name": "adminAmount",
        "type": "uint256"
      },
      {
        "indexed": false,
        "internalType": "uint256",
        "name": "controllerAmount",
        "type": "uint256"
      },
      {
        "indexed": false,
        "internalType": "uint256",
        "name": "treasuryAmount",
        "type": "uint256"
      }
    ],
    "name": "ProtocolFeesDistributed",
    "type": "event"
  },
  {
    "anonymous": false,
    "inputs": [
      {
        "indexed": true,
        "internalType": "address",
        "name": "adminWallet",
        "type": "address"
      },
      {
        "indexed": true,
        "internalType": "address",
        "name": "treasuryWallet",
        "type": "address"
      }
    ],
    "name": "WalletsChanged",
    "type": "event"
  },
  {
    "inputs": [],
    "name": "BPS",
    "outputs": [
      {
        "internalType": "uint16",
        "name": "",
        "type": "uint16"
      }
    ],
    "stateMutability": "view",
    "type": "function"
  },
  {
    "inputs": [],
    "name": "acceptOwnership",
    "outputs": [],
    "stateMutability": "nonpayable",
    "type": "function"
  },
  {
    "inputs": [],
    "name": "adminShareBps",
    "outputs": [
      {
        "internalType": "uint16",
        "name": "",
        "type": "uint16"
      }
    ],
    "stateMutability": "view",
    "type": "function"
  },
  {
    "inputs": [],
    "name": "adminWallet",
    "outputs": [
      {
        "internalType": "address",
        "name": "",
        "type": "address"
      }
    ],
    "stateMutability": "view",
    "type": "function"
  },
  {
    "inputs": [
      {
        "internalType": "address",
        "name": "pair",
        "type": "address"
      }
    ],
    "name": "claimable",
    "outputs": [
      {
        "internalType": "uint256",
        "name": "",
        "type": "uint256"
      }
    ],
    "stateMutability": "view",
    "type": "function"
  },
  {
    "inputs": [],
    "name": "controllerShareBps",
    "outputs": [
      {
        "internalType": "uint16",
        "name": "",
        "type": "uint16"
      }
    ],
    "stateMutability": "view",
    "type": "function"
  },
  {
    "inputs": [
      {
        "internalType": "address",
        "name": "pair",
        "type": "address"
      }
    ],
    "name": "distribute",
    "outputs": [
      {
        "internalType": "uint256",
        "name": "total",
        "type": "uint256"
      }
    ],
    "stateMutability": "nonpayable",
    "type": "function"
  },
  {
    "inputs": [
      {
        "internalType": "address",
        "name": "",
        "type": "address"
      }
    ],
    "name": "distributedProtocolLiquidity",
    "outputs": [
      {
        "internalType": "uint256",
        "name": "",
        "type": "uint256"
      }
    ],
    "stateMutability": "view",
    "type": "function"
  },
  {
    "inputs": [],
    "name": "factory",
    "outputs": [
      {
        "internalType": "contract ICookDEXV2Factory",
        "name": "",
        "type": "address"
      }
    ],
    "stateMutability": "view",
    "type": "function"
  },
  {
    "inputs": [],
    "name": "owner",
    "outputs": [
      {
        "internalType": "address",
        "name": "",
        "type": "address"
      }
    ],
    "stateMutability": "view",
    "type": "function"
  },
  {
    "inputs": [],
    "name": "pendingOwner",
    "outputs": [
      {
        "internalType": "address",
        "name": "",
        "type": "address"
      }
    ],
    "stateMutability": "view",
    "type": "function"
  },
  {
    "inputs": [
      {
        "internalType": "address",
        "name": "",
        "type": "address"
      }
    ],
    "name": "poolController",
    "outputs": [
      {
        "internalType": "address",
        "name": "",
        "type": "address"
      }
    ],
    "stateMutability": "view",
    "type": "function"
  },
  {
    "inputs": [
      {
        "internalType": "address",
        "name": "pair",
        "type": "address"
      }
    ],
    "name": "registerPoolController",
    "outputs": [],
    "stateMutability": "nonpayable",
    "type": "function"
  },
  {
    "inputs": [],
    "name": "renounceOwnership",
    "outputs": [],
    "stateMutability": "nonpayable",
    "type": "function"
  },
  {
    "inputs": [
      {
        "internalType": "uint16",
        "name": "adminBps",
        "type": "uint16"
      },
      {
        "internalType": "uint16",
        "name": "controllerBps",
        "type": "uint16"
      },
      {
        "internalType": "uint16",
        "name": "treasuryBps",
        "type": "uint16"
      }
    ],
    "name": "setFeeSplit",
    "outputs": [],
    "stateMutability": "nonpayable",
    "type": "function"
  },
  {
    "inputs": [
      {
        "internalType": "address",
        "name": "pair",
        "type": "address"
      },
      {
        "internalType": "address",
        "name": "controller",
        "type": "address"
      }
    ],
    "name": "setPoolController",
    "outputs": [],
    "stateMutability": "nonpayable",
    "type": "function"
  },
  {
    "inputs": [
      {
        "internalType": "address",
        "name": "adminWallet_",
        "type": "address"
      },
      {
        "internalType": "address",
        "name": "treasuryWallet_",
        "type": "address"
      }
    ],
    "name": "setWallets",
    "outputs": [],
    "stateMutability": "nonpayable",
    "type": "function"
  },
  {
    "inputs": [
      {
        "internalType": "address",
        "name": "newOwner",
        "type": "address"
      }
    ],
    "name": "transferOwnership",
    "outputs": [],
    "stateMutability": "nonpayable",
    "type": "function"
  },
  {
    "inputs": [],
    "name": "treasuryShareBps",
    "outputs": [
      {
        "internalType": "uint16",
        "name": "",
        "type": "uint16"
      }
    ],
    "stateMutability": "view",
    "type": "function"
  },
  {
    "inputs": [],
    "name": "treasuryWallet",
    "outputs": [
      {
        "internalType": "address",
        "name": "",
        "type": "address"
      }
    ],
    "stateMutability": "view",
    "type": "function"
  }
]

Raw Contract Data · JSON

{
  "id": "0x461cace81b26128f6a4be799eb93f5cbee2d0b1c",
  "contract": "0x461cace81b26128f6a4be799eb93f5cbee2d0b1c",
  "name": "EVM Contract",
  "type": "contract",
  "bytecode": 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    "compiler": "0.8.24+commit.e11b9ed9.Emscripten.clang",
    "contract": "contracts/CookDEXV2FeeVault.sol:CookDEXV2FeeVault",
    "verified": true,
    "match": "runtime-with-metadata",
    "creation_verified": true,
    "constructor_arguments": "0000000000000000000000001bc619b7f70d2537daeeb30d4098cc9b7e32e9aa000000000000000000000000df6e7e94ed8c6fe335c28a8ec50381e9172f7d30000000000000000000000000df6e7e94ed8c6fe335c28a8ec50381e9172f7d30000000000000000000000000df6e7e94ed8c6fe335c28a8ec50381e9172f7d30",
    "verified_at": "2026-10-01T09:55:16.680Z",
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            "internalType": "uint16",
            "name": "adminBps",
            "type": "uint16"
          },
          {
            "internalType": "uint16",
            "name": "controllerBps",
            "type": "uint16"
          },
          {
            "internalType": "uint16",
            "name": "treasuryBps",
            "type": "uint16"
          }
        ],
        "name": "setFeeSplit",
        "outputs": [],
        "stateMutability": "nonpayable",
        "type": "function"
      },
      {
        "inputs": [
          {
            "internalType": "address",
            "name": "pair",
            "type": "address"
          },
          {
            "internalType": "address",
            "name": "controller",
            "type": "address"
          }
        ],
        "name": "setPoolController",
        "outputs": [],
        "stateMutability": "nonpayable",
        "type": "function"
      },
      {
        "inputs": [
          {
            "internalType": "address",
            "name": "adminWallet_",
            "type": "address"
          },
          {
            "internalType": "address",
            "name": "treasuryWallet_",
            "type": "address"
          }
        ],
        "name": "setWallets",
        "outputs": [],
        "stateMutability": "nonpayable",
        "type": "function"
      },
      {
        "inputs": [
          {
            "internalType": "address",
            "name": "newOwner",
            "type": "address"
          }
        ],
        "name": "transferOwnership",
        "outputs": [],
        "stateMutability": "nonpayable",
        "type": "function"
      },
      {
        "inputs": [],
        "name": "treasuryShareBps",
        "outputs": [
          {
            "internalType": "uint16",
            "name": "",
            "type": "uint16"
          }
        ],
        "stateMutability": "view",
        "type": "function"
      },
      {
        "inputs": [],
        "name": "treasuryWallet",
        "outputs": [
          {
            "internalType": "address",
            "name": "",
            "type": "address"
          }
        ],
        "stateMutability": "view",
        "type": "function"
      }
    ],
    "input": {
      "language": "Solidity",
      "sources": {
        "@layerzerolabs/lz-evm-protocol-v2/contracts/interfaces/ILayerZeroEndpointV2.sol": {
          "content": "// SPDX-License-Identifier: MIT\n\npragma solidity >=0.8.0;\n\nimport { IMessageLibManager } from \"./IMessageLibManager.sol\";\nimport { IMessagingComposer } from \"./IMessagingComposer.sol\";\nimport { IMessagingChannel } from \"./IMessagingChannel.sol\";\nimport { IMessagingContext } from \"./IMessagingContext.sol\";\n\nstruct MessagingParams {\n    uint32 dstEid;\n    bytes32 receiver;\n    bytes message;\n    bytes options;\n    bool payInLzToken;\n}\n\nstruct MessagingReceipt {\n    bytes32 guid;\n    uint64 nonce;\n    MessagingFee fee;\n}\n\nstruct MessagingFee {\n    uint256 nativeFee;\n    uint256 lzTokenFee;\n}\n\nstruct Origin {\n    uint32 srcEid;\n    bytes32 sender;\n    uint64 nonce;\n}\n\ninterface ILayerZeroEndpointV2 is IMessageLibManager, IMessagingComposer, IMessagingChannel, IMessagingContext {\n    event PacketSent(bytes encodedPayload, bytes options, address sendLibrary);\n\n    event PacketVerified(Origin origin, address receiver, bytes32 payloadHash);\n\n    event PacketDelivered(Origin origin, address receiver);\n\n    event LzReceiveAlert(\n        address indexed receiver,\n        address indexed executor,\n        Origin origin,\n        bytes32 guid,\n        uint256 gas,\n        uint256 value,\n        bytes message,\n        bytes extraData,\n        bytes reason\n    );\n\n    event LzTokenSet(address token);\n\n    event DelegateSet(address sender, address delegate);\n\n    function quote(MessagingParams calldata _params, address _sender) external view returns (MessagingFee memory);\n\n    function send(\n        MessagingParams calldata _params,\n        address _refundAddress\n    ) external payable returns (MessagingReceipt memory);\n\n    function verify(Origin calldata _origin, address _receiver, bytes32 _payloadHash) external;\n\n    function verifiable(Origin calldata _origin, address _receiver) external view returns (bool);\n\n    function initializable(Origin calldata _origin, address _receiver) external view returns (bool);\n\n    function lzReceive(\n        Origin calldata _origin,\n        address _receiver,\n        bytes32 _guid,\n        bytes calldata _message,\n        bytes calldata _extraData\n    ) external payable;\n\n    // oapp can burn messages partially by calling this function with its own business logic if messages are verified in order\n    function clear(address _oapp, Origin calldata _origin, bytes32 _guid, bytes calldata _message) external;\n\n    function setLzToken(address _lzToken) external;\n\n    function lzToken() external view returns (address);\n\n    function nativeToken() external view returns (address);\n\n    function setDelegate(address _delegate) external;\n}\n"
        },
        "@layerzerolabs/lz-evm-protocol-v2/contracts/interfaces/ILayerZeroReceiver.sol": {
          "content": "// SPDX-License-Identifier: MIT\n\npragma solidity >=0.8.0;\n\nimport { Origin } from \"./ILayerZeroEndpointV2.sol\";\n\ninterface ILayerZeroReceiver {\n    function allowInitializePath(Origin calldata _origin) external view returns (bool);\n\n    function nextNonce(uint32 _eid, bytes32 _sender) external view returns (uint64);\n\n    function lzReceive(\n        Origin calldata _origin,\n        bytes32 _guid,\n        bytes calldata _message,\n        address _executor,\n        bytes calldata _extraData\n    ) external payable;\n}\n"
        },
        "@layerzerolabs/lz-evm-protocol-v2/contracts/interfaces/IMessageLib.sol": {
          "content": "// SPDX-License-Identifier: MIT\n\npragma solidity >=0.8.0;\n\nimport { IERC165 } from \"@openzeppelin/contracts/utils/introspection/IERC165.sol\";\n\nimport { SetConfigParam } from \"./IMessageLibManager.sol\";\n\nenum MessageLibType {\n    Send,\n    Receive,\n    SendAndReceive\n}\n\ninterface IMessageLib is IERC165 {\n    function setConfig(address _oapp, SetConfigParam[] calldata _config) external;\n\n    function getConfig(uint32 _eid, address _oapp, uint32 _configType) external view returns (bytes memory config);\n\n    function isSupportedEid(uint32 _eid) external view returns (bool);\n\n    // message libs of same major version are compatible\n    function version() external view returns (uint64 major, uint8 minor, uint8 endpointVersion);\n\n    function messageLibType() external view returns (MessageLibType);\n}\n"
        },
        "@layerzerolabs/lz-evm-protocol-v2/contracts/interfaces/IMessageLibManager.sol": {
          "content": "// SPDX-License-Identifier: MIT\n\npragma solidity >=0.8.0;\n\nstruct SetConfigParam {\n    uint32 eid;\n    uint32 configType;\n    bytes config;\n}\n\ninterface IMessageLibManager {\n    struct Timeout {\n        address lib;\n        uint256 expiry;\n    }\n\n    event LibraryRegistered(address newLib);\n    event DefaultSendLibrarySet(uint32 eid, address newLib);\n    event DefaultReceiveLibrarySet(uint32 eid, address newLib);\n    event DefaultReceiveLibraryTimeoutSet(uint32 eid, address oldLib, uint256 expiry);\n    event SendLibrarySet(address sender, uint32 eid, address newLib);\n    event ReceiveLibrarySet(address receiver, uint32 eid, address newLib);\n    event ReceiveLibraryTimeoutSet(address receiver, uint32 eid, address oldLib, uint256 timeout);\n\n    function registerLibrary(address _lib) external;\n\n    function isRegisteredLibrary(address _lib) external view returns (bool);\n\n    function getRegisteredLibraries() external view returns (address[] memory);\n\n    function setDefaultSendLibrary(uint32 _eid, address _newLib) external;\n\n    function defaultSendLibrary(uint32 _eid) external view returns (address);\n\n    function setDefaultReceiveLibrary(uint32 _eid, address _newLib, uint256 _gracePeriod) external;\n\n    function defaultReceiveLibrary(uint32 _eid) external view returns (address);\n\n    function setDefaultReceiveLibraryTimeout(uint32 _eid, address _lib, uint256 _expiry) external;\n\n    function defaultReceiveLibraryTimeout(uint32 _eid) external view returns (address lib, uint256 expiry);\n\n    function isSupportedEid(uint32 _eid) external view returns (bool);\n\n    function isValidReceiveLibrary(address _receiver, uint32 _eid, address _lib) external view returns (bool);\n\n    /// ------------------- OApp interfaces -------------------\n    function setSendLibrary(address _oapp, uint32 _eid, address _newLib) external;\n\n    function getSendLibrary(address _sender, uint32 _eid) external view returns (address lib);\n\n    function isDefaultSendLibrary(address _sender, uint32 _eid) external view returns (bool);\n\n    function setReceiveLibrary(address _oapp, uint32 _eid, address _newLib, uint256 _gracePeriod) external;\n\n    function getReceiveLibrary(address _receiver, uint32 _eid) external view returns (address lib, bool isDefault);\n\n    function setReceiveLibraryTimeout(address _oapp, uint32 _eid, address _lib, uint256 _expiry) external;\n\n    function receiveLibraryTimeout(address _receiver, uint32 _eid) external view returns (address lib, uint256 expiry);\n\n    function setConfig(address _oapp, address _lib, SetConfigParam[] calldata _params) external;\n\n    function getConfig(\n        address _oapp,\n        address _lib,\n        uint32 _eid,\n        uint32 _configType\n    ) external view returns (bytes memory config);\n}\n"
        },
        "@layerzerolabs/lz-evm-protocol-v2/contracts/interfaces/IMessagingChannel.sol": {
          "content": "// SPDX-License-Identifier: MIT\n\npragma solidity >=0.8.0;\n\ninterface IMessagingChannel {\n    event InboundNonceSkipped(uint32 srcEid, bytes32 sender, address receiver, uint64 nonce);\n    event PacketNilified(uint32 srcEid, bytes32 sender, address receiver, uint64 nonce, bytes32 payloadHash);\n    event PacketBurnt(uint32 srcEid, bytes32 sender, address receiver, uint64 nonce, bytes32 payloadHash);\n\n    function eid() external view returns (uint32);\n\n    // this is an emergency function if a message cannot be verified for some reasons\n    // required to provide _nextNonce to avoid race condition\n    function skip(address _oapp, uint32 _srcEid, bytes32 _sender, uint64 _nonce) external;\n\n    function nilify(address _oapp, uint32 _srcEid, bytes32 _sender, uint64 _nonce, bytes32 _payloadHash) external;\n\n    function burn(address _oapp, uint32 _srcEid, bytes32 _sender, uint64 _nonce, bytes32 _payloadHash) external;\n\n    function nextGuid(address _sender, uint32 _dstEid, bytes32 _receiver) external view returns (bytes32);\n\n    function inboundNonce(address _receiver, uint32 _srcEid, bytes32 _sender) external view returns (uint64);\n\n    function outboundNonce(address _sender, uint32 _dstEid, bytes32 _receiver) external view returns (uint64);\n\n    function inboundPayloadHash(\n        address _receiver,\n        uint32 _srcEid,\n        bytes32 _sender,\n        uint64 _nonce\n    ) external view returns (bytes32);\n\n    function lazyInboundNonce(address _receiver, uint32 _srcEid, bytes32 _sender) external view returns (uint64);\n}\n"
        },
        "@layerzerolabs/lz-evm-protocol-v2/contracts/interfaces/IMessagingComposer.sol": {
          "content": "// SPDX-License-Identifier: MIT\n\npragma solidity >=0.8.0;\n\ninterface IMessagingComposer {\n    event ComposeSent(address from, address to, bytes32 guid, uint16 index, bytes message);\n    event ComposeDelivered(address from, address to, bytes32 guid, uint16 index);\n    event LzComposeAlert(\n        address indexed from,\n        address indexed to,\n        address indexed executor,\n        bytes32 guid,\n        uint16 index,\n        uint256 gas,\n        uint256 value,\n        bytes message,\n        bytes extraData,\n        bytes reason\n    );\n\n    function composeQueue(\n        address _from,\n        address _to,\n        bytes32 _guid,\n        uint16 _index\n    ) external view returns (bytes32 messageHash);\n\n    function sendCompose(address _to, bytes32 _guid, uint16 _index, bytes calldata _message) external;\n\n    function lzCompose(\n        address _from,\n        address _to,\n        bytes32 _guid,\n        uint16 _index,\n        bytes calldata _message,\n        bytes calldata _extraData\n    ) external payable;\n}\n"
        },
        "@layerzerolabs/lz-evm-protocol-v2/contracts/interfaces/IMessagingContext.sol": {
          "content": "// SPDX-License-Identifier: MIT\n\npragma solidity >=0.8.0;\n\ninterface IMessagingContext {\n    function isSendingMessage() external view returns (bool);\n\n    function getSendContext() external view returns (uint32 dstEid, address sender);\n}\n"
        },
        "@layerzerolabs/lz-evm-protocol-v2/contracts/interfaces/ISendLib.sol": {
          "content": "// SPDX-License-Identifier: MIT\n\npragma solidity >=0.8.0;\n\nimport { MessagingFee } from \"./ILayerZeroEndpointV2.sol\";\nimport { IMessageLib } from \"./IMessageLib.sol\";\n\nstruct Packet {\n    uint64 nonce;\n    uint32 srcEid;\n    address sender;\n    uint32 dstEid;\n    bytes32 receiver;\n    bytes32 guid;\n    bytes message;\n}\n\ninterface ISendLib is IMessageLib {\n    function send(\n        Packet calldata _packet,\n        bytes calldata _options,\n        bool _payInLzToken\n    ) external returns (MessagingFee memory, bytes memory encodedPacket);\n\n    function quote(\n        Packet calldata _packet,\n        bytes calldata _options,\n        bool _payInLzToken\n    ) external view returns (MessagingFee memory);\n\n    function setTreasury(address _treasury) external;\n\n    function withdrawFee(address _to, uint256 _amount) external;\n\n    function withdrawLzTokenFee(address _lzToken, address _to, uint256 _amount) external;\n}\n"
        },
        "@layerzerolabs/lz-evm-protocol-v2/contracts/libs/AddressCast.sol": {
          "content": "// SPDX-License-Identifier: LZBL-1.2\n\npragma solidity ^0.8.20;\n\nlibrary AddressCast {\n    error AddressCast_InvalidSizeForAddress();\n    error AddressCast_InvalidAddress();\n\n    function toBytes32(bytes calldata _addressBytes) internal pure returns (bytes32 result) {\n        if (_addressBytes.length > 32) revert AddressCast_InvalidAddress();\n        result = bytes32(_addressBytes);\n        unchecked {\n            uint256 offset = 32 - _addressBytes.length;\n            result = result >> (offset * 8);\n        }\n    }\n\n    function toBytes32(address _address) internal pure returns (bytes32 result) {\n        result = bytes32(uint256(uint160(_address)));\n    }\n\n    function toBytes(bytes32 _addressBytes32, uint256 _size) internal pure returns (bytes memory result) {\n        if (_size == 0 || _size > 32) revert AddressCast_InvalidSizeForAddress();\n        result = new bytes(_size);\n        unchecked {\n            uint256 offset = 256 - _size * 8;\n            assembly {\n                mstore(add(result, 32), shl(offset, _addressBytes32))\n            }\n        }\n    }\n\n    function toAddress(bytes32 _addressBytes32) internal pure returns (address result) {\n        result = address(uint160(uint256(_addressBytes32)));\n    }\n\n    function toAddress(bytes calldata _addressBytes) internal pure returns (address result) {\n        if (_addressBytes.length != 20) revert AddressCast_InvalidAddress();\n        result = address(bytes20(_addressBytes));\n    }\n}\n"
        },
        "@layerzerolabs/lz-evm-protocol-v2/contracts/messagelib/libs/PacketV1Codec.sol": {
          "content": "// SPDX-License-Identifier: LZBL-1.2\n\npragma solidity ^0.8.20;\n\nimport { Packet } from \"../../interfaces/ISendLib.sol\";\nimport { AddressCast } from \"../../libs/AddressCast.sol\";\n\nlibrary PacketV1Codec {\n    using AddressCast for address;\n    using AddressCast for bytes32;\n\n    uint8 internal constant PACKET_VERSION = 1;\n\n    // header (version + nonce + path)\n    // version\n    uint256 private constant PACKET_VERSION_OFFSET = 0;\n    //    nonce\n    uint256 private constant NONCE_OFFSET = 1;\n    //    path\n    uint256 private constant SRC_EID_OFFSET = 9;\n    uint256 private constant SENDER_OFFSET = 13;\n    uint256 private constant DST_EID_OFFSET = 45;\n    uint256 private constant RECEIVER_OFFSET = 49;\n    // payload (guid + message)\n    uint256 private constant GUID_OFFSET = 81; // keccak256(nonce + path)\n    uint256 private constant MESSAGE_OFFSET = 113;\n\n    function encode(Packet memory _packet) internal pure returns (bytes memory encodedPacket) {\n        encodedPacket = abi.encodePacked(\n            PACKET_VERSION,\n            _packet.nonce,\n            _packet.srcEid,\n            _packet.sender.toBytes32(),\n            _packet.dstEid,\n            _packet.receiver,\n            _packet.guid,\n            _packet.message\n        );\n    }\n\n    function encodePacketHeader(Packet memory _packet) internal pure returns (bytes memory) {\n        return\n            abi.encodePacked(\n                PACKET_VERSION,\n                _packet.nonce,\n                _packet.srcEid,\n                _packet.sender.toBytes32(),\n                _packet.dstEid,\n                _packet.receiver\n            );\n    }\n\n    function encodePayload(Packet memory _packet) internal pure returns (bytes memory) {\n        return abi.encodePacked(_packet.guid, _packet.message);\n    }\n\n    function header(bytes calldata _packet) internal pure returns (bytes calldata) {\n        return _packet[0:GUID_OFFSET];\n    }\n\n    function version(bytes calldata _packet) internal pure returns (uint8) {\n        return uint8(bytes1(_packet[PACKET_VERSION_OFFSET:NONCE_OFFSET]));\n    }\n\n    function nonce(bytes calldata _packet) internal pure returns (uint64) {\n        return uint64(bytes8(_packet[NONCE_OFFSET:SRC_EID_OFFSET]));\n    }\n\n    function srcEid(bytes calldata _packet) internal pure returns (uint32) {\n        return uint32(bytes4(_packet[SRC_EID_OFFSET:SENDER_OFFSET]));\n    }\n\n    function sender(bytes calldata _packet) internal pure returns (bytes32) {\n        return bytes32(_packet[SENDER_OFFSET:DST_EID_OFFSET]);\n    }\n\n    function senderAddressB20(bytes calldata _packet) internal pure returns (address) {\n        return sender(_packet).toAddress();\n    }\n\n    function dstEid(bytes calldata _packet) internal pure returns (uint32) {\n        return uint32(bytes4(_packet[DST_EID_OFFSET:RECEIVER_OFFSET]));\n    }\n\n    function receiver(bytes calldata _packet) internal pure returns (bytes32) {\n        return bytes32(_packet[RECEIVER_OFFSET:GUID_OFFSET]);\n    }\n\n    function receiverB20(bytes calldata _packet) internal pure returns (address) {\n        return receiver(_packet).toAddress();\n    }\n\n    function guid(bytes calldata _packet) internal pure returns (bytes32) {\n        return bytes32(_packet[GUID_OFFSET:MESSAGE_OFFSET]);\n    }\n\n    function message(bytes calldata _packet) internal pure returns (bytes calldata) {\n        return bytes(_packet[MESSAGE_OFFSET:]);\n    }\n\n    function payload(bytes calldata _packet) internal pure returns (bytes calldata) {\n        return bytes(_packet[GUID_OFFSET:]);\n    }\n\n    function payloadHash(bytes calldata _packet) internal pure returns (bytes32) {\n        return keccak256(payload(_packet));\n    }\n}\n"
        },
        "@layerzerolabs/oapp-evm/contracts/oapp/interfaces/IOAppCore.sol": {
          "content": "// SPDX-License-Identifier: MIT\n\npragma solidity ^0.8.20;\n\nimport { ILayerZeroEndpointV2 } from \"@layerzerolabs/lz-evm-protocol-v2/contracts/interfaces/ILayerZeroEndpointV2.sol\";\n\n/**\n * @title IOAppCore\n */\ninterface IOAppCore {\n    // Custom error messages\n    error OnlyPeer(uint32 eid, bytes32 sender);\n    error NoPeer(uint32 eid);\n    error InvalidEndpointCall();\n    error InvalidDelegate();\n\n    // Event emitted when a peer (OApp) is set for a corresponding endpoint\n    event PeerSet(uint32 eid, bytes32 peer);\n\n    /**\n     * @notice Retrieves the OApp version information.\n     * @return senderVersion The version of the OAppSender.sol contract.\n     * @return receiverVersion The version of the OAppReceiver.sol contract.\n     */\n    function oAppVersion() external view returns (uint64 senderVersion, uint64 receiverVersion);\n\n    /**\n     * @notice Retrieves the LayerZero endpoint associated with the OApp.\n     * @return iEndpoint The LayerZero endpoint as an interface.\n     */\n    function endpoint() external view returns (ILayerZeroEndpointV2 iEndpoint);\n\n    /**\n     * @notice Retrieves the peer (OApp) associated with a corresponding endpoint.\n     * @param _eid The endpoint ID.\n     * @return peer The peer address (OApp instance) associated with the corresponding endpoint.\n     */\n    function peers(uint32 _eid) external view returns (bytes32 peer);\n\n    /**\n     * @notice Sets the peer address (OApp instance) for a corresponding endpoint.\n     * @param _eid The endpoint ID.\n     * @param _peer The address of the peer to be associated with the corresponding endpoint.\n     */\n    function setPeer(uint32 _eid, bytes32 _peer) external;\n\n    /**\n     * @notice Sets the delegate address for the OApp Core.\n     * @param _delegate The address of the delegate to be set.\n     */\n    function setDelegate(address _delegate) external;\n}\n"
        },
        "@layerzerolabs/oapp-evm/contracts/oapp/interfaces/IOAppMsgInspector.sol": {
          "content": "// SPDX-License-Identifier: MIT\n\npragma solidity ^0.8.20;\n\n/**\n * @title IOAppMsgInspector\n * @dev Interface for the OApp Message Inspector, allowing examination of message and options contents.\n */\ninterface IOAppMsgInspector {\n    // Custom error message for inspection failure\n    error InspectionFailed(bytes message, bytes options);\n\n    /**\n     * @notice Allows the inspector to examine LayerZero message contents and optionally throw a revert if invalid.\n     * @param _message The message payload to be inspected.\n     * @param _options Additional options or parameters for inspection.\n     * @return valid A boolean indicating whether the inspection passed (true) or failed (false).\n     *\n     * @dev Optionally done as a revert, OR use the boolean provided to handle the failure.\n     */\n    function inspect(bytes calldata _message, bytes calldata _options) external view returns (bool valid);\n}\n"
        },
        "@layerzerolabs/oapp-evm/contracts/oapp/interfaces/IOAppOptionsType3.sol": {
          "content": "// SPDX-License-Identifier: MIT\n\npragma solidity ^0.8.20;\n\n/**\n * @dev Struct representing enforced option parameters.\n */\nstruct EnforcedOptionParam {\n    uint32 eid; // Endpoint ID\n    uint16 msgType; // Message Type\n    bytes options; // Additional options\n}\n\n/**\n * @title IOAppOptionsType3\n * @dev Interface for the OApp with Type 3 Options, allowing the setting and combining of enforced options.\n */\ninterface IOAppOptionsType3 {\n    // Custom error message for invalid options\n    error InvalidOptions(bytes options);\n\n    // Event emitted when enforced options are set\n    event EnforcedOptionSet(EnforcedOptionParam[] _enforcedOptions);\n\n    /**\n     * @notice Sets enforced options for specific endpoint and message type combinations.\n     * @param _enforcedOptions An array of EnforcedOptionParam structures specifying enforced options.\n     */\n    function setEnforcedOptions(EnforcedOptionParam[] calldata _enforcedOptions) external;\n\n    /**\n     * @notice Combines options for a given endpoint and message type.\n     * @param _eid The endpoint ID.\n     * @param _msgType The OApp message type.\n     * @param _extraOptions Additional options passed by the caller.\n     * @return options The combination of caller specified options AND enforced options.\n     */\n    function combineOptions(\n        uint32 _eid,\n        uint16 _msgType,\n        bytes calldata _extraOptions\n    ) external view returns (bytes memory options);\n}\n"
        },
        "@layerzerolabs/oapp-evm/contracts/oapp/interfaces/IOAppReceiver.sol": {
          "content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.20;\n\nimport { ILayerZeroReceiver, Origin } from \"@layerzerolabs/lz-evm-protocol-v2/contracts/interfaces/ILayerZeroReceiver.sol\";\n\ninterface IOAppReceiver is ILayerZeroReceiver {\n    /**\n     * @notice Indicates whether an address is an approved composeMsg sender to the Endpoint.\n     * @param _origin The origin information containing the source endpoint and sender address.\n     *  - srcEid: The source chain endpoint ID.\n     *  - sender: The sender address on the src chain.\n     *  - nonce: The nonce of the message.\n     * @param _message The lzReceive payload.\n     * @param _sender The sender address.\n     * @return isSender Is a valid sender.\n     *\n     * @dev Applications can optionally choose to implement a separate composeMsg sender that is NOT the bridging layer.\n     * @dev The default sender IS the OAppReceiver implementer.\n     */\n    function isComposeMsgSender(\n        Origin calldata _origin,\n        bytes calldata _message,\n        address _sender\n    ) external view returns (bool isSender);\n}\n"
        },
        "@layerzerolabs/oapp-evm/contracts/oapp/libs/OAppOptionsType3.sol": {
          "content": "// SPDX-License-Identifier: MIT\n\npragma solidity ^0.8.20;\n\nimport { Ownable } from \"@openzeppelin/contracts/access/Ownable.sol\";\nimport { IOAppOptionsType3, EnforcedOptionParam } from \"../interfaces/IOAppOptionsType3.sol\";\n\n/**\n * @title OAppOptionsType3\n * @dev Abstract contract implementing the IOAppOptionsType3 interface with type 3 options.\n */\nabstract contract OAppOptionsType3 is IOAppOptionsType3, Ownable {\n    uint16 internal constant OPTION_TYPE_3 = 3;\n\n    // @dev The \"msgType\" should be defined in the child contract.\n    mapping(uint32 eid => mapping(uint16 msgType => bytes enforcedOption)) public enforcedOptions;\n\n    /**\n     * @dev Sets the enforced options for specific endpoint and message type combinations.\n     * @param _enforcedOptions An array of EnforcedOptionParam structures specifying enforced options.\n     *\n     * @dev Only the owner/admin of the OApp can call this function.\n     * @dev Provides a way for the OApp to enforce things like paying for PreCrime, AND/OR minimum dst lzReceive gas amounts etc.\n     * @dev These enforced options can vary as the potential options/execution on the remote may differ as per the msgType.\n     * eg. Amount of lzReceive() gas necessary to deliver a lzCompose() message adds overhead you dont want to pay\n     * if you are only making a standard LayerZero message ie. lzReceive() WITHOUT sendCompose().\n     */\n    function setEnforcedOptions(EnforcedOptionParam[] calldata _enforcedOptions) public virtual onlyOwner {\n        _setEnforcedOptions(_enforcedOptions);\n    }\n\n    /**\n     * @dev Sets the enforced options for specific endpoint and message type combinations.\n     * @param _enforcedOptions An array of EnforcedOptionParam structures specifying enforced options.\n     *\n     * @dev Provides a way for the OApp to enforce things like paying for PreCrime, AND/OR minimum dst lzReceive gas amounts etc.\n     * @dev These enforced options can vary as the potential options/execution on the remote may differ as per the msgType.\n     * eg. Amount of lzReceive() gas necessary to deliver a lzCompose() message adds overhead you dont want to pay\n     * if you are only making a standard LayerZero message ie. lzReceive() WITHOUT sendCompose().\n     */\n    function _setEnforcedOptions(EnforcedOptionParam[] memory _enforcedOptions) internal virtual {\n        for (uint256 i = 0; i < _enforcedOptions.length; i++) {\n            // @dev Enforced options are only available for optionType 3, as type 1 and 2 dont support combining.\n            _assertOptionsType3(_enforcedOptions[i].options);\n            enforcedOptions[_enforcedOptions[i].eid][_enforcedOptions[i].msgType] = _enforcedOptions[i].options;\n        }\n\n        emit EnforcedOptionSet(_enforcedOptions);\n    }\n\n    /**\n     * @notice Combines options for a given endpoint and message type.\n     * @param _eid The endpoint ID.\n     * @param _msgType The OAPP message type.\n     * @param _extraOptions Additional options passed by the caller.\n     * @return options The combination of caller specified options AND enforced options.\n     *\n     * @dev If there is an enforced lzReceive option:\n     * - {gasLimit: 200k, msg.value: 1 ether} AND a caller supplies a lzReceive option: {gasLimit: 100k, msg.value: 0.5 ether}\n     * - The resulting options will be {gasLimit: 300k, msg.value: 1.5 ether} when the message is executed on the remote lzReceive() function.\n     * @dev This presence of duplicated options is handled off-chain in the verifier/executor.\n     */\n    function combineOptions(\n        uint32 _eid,\n        uint16 _msgType,\n        bytes calldata _extraOptions\n    ) public view virtual returns (bytes memory) {\n        bytes memory enforced = enforcedOptions[_eid][_msgType];\n\n        // No enforced options, pass whatever the caller supplied, even if it's empty or legacy type 1/2 options.\n        if (enforced.length == 0) return _extraOptions;\n\n        // No caller options, return enforced\n        if (_extraOptions.length == 0) return enforced;\n\n        // @dev If caller provided _extraOptions, must be type 3 as its the ONLY type that can be combined.\n        if (_extraOptions.length >= 2) {\n            _assertOptionsType3(_extraOptions);\n            // @dev Remove the first 2 bytes containing the type from the _extraOptions and combine with enforced.\n            return bytes.concat(enforced, _extraOptions[2:]);\n        }\n\n        // No valid set of options was found.\n        revert InvalidOptions(_extraOptions);\n    }\n\n    /**\n     * @dev Internal function to assert that options are of type 3.\n     * @param _options The options to be checked.\n     */\n    function _assertOptionsType3(bytes memory _options) internal pure virtual {\n        uint16 optionsType;\n        assembly {\n            optionsType := mload(add(_options, 2))\n        }\n        if (optionsType != OPTION_TYPE_3) revert InvalidOptions(_options);\n    }\n}\n"
        },
        "@layerzerolabs/oapp-evm/contracts/oapp/OApp.sol": {
          "content": "// SPDX-License-Identifier: MIT\n\npragma solidity ^0.8.20;\n\n// @dev Import the 'MessagingFee' and 'MessagingReceipt' so it's exposed to OApp implementers\n// solhint-disable-next-line no-unused-import\nimport { OAppSender, MessagingFee, MessagingReceipt } from \"./OAppSender.sol\";\n// @dev Import the 'Origin' so it's exposed to OApp implementers\n// solhint-disable-next-line no-unused-import\nimport { OAppReceiver, Origin } from \"./OAppReceiver.sol\";\nimport { OAppCore } from \"./OAppCore.sol\";\n\n/**\n * @title OApp\n * @dev Abstract contract serving as the base for OApp implementation, combining OAppSender and OAppReceiver functionality.\n */\nabstract contract OApp is OAppSender, OAppReceiver {\n    /**\n     * @dev Constructor to initialize the OApp with the provided endpoint and owner.\n     * @param _endpoint The address of the LOCAL LayerZero endpoint.\n     * @param _delegate The delegate capable of making OApp configurations inside of the endpoint.\n     */\n    constructor(address _endpoint, address _delegate) OAppCore(_endpoint, _delegate) {}\n\n    /**\n     * @notice Retrieves the OApp version information.\n     * @return senderVersion The version of the OAppSender.sol implementation.\n     * @return receiverVersion The version of the OAppReceiver.sol implementation.\n     */\n    function oAppVersion()\n        public\n        pure\n        virtual\n        override(OAppSender, OAppReceiver)\n        returns (uint64 senderVersion, uint64 receiverVersion)\n    {\n        return (SENDER_VERSION, RECEIVER_VERSION);\n    }\n}\n"
        },
        "@layerzerolabs/oapp-evm/contracts/oapp/OAppCore.sol": {
          "content": "// SPDX-License-Identifier: MIT\n\npragma solidity ^0.8.20;\n\nimport { Ownable } from \"@openzeppelin/contracts/access/Ownable.sol\";\nimport { IOAppCore, ILayerZeroEndpointV2 } from \"./interfaces/IOAppCore.sol\";\n\n/**\n * @title OAppCore\n * @dev Abstract contract implementing the IOAppCore interface with basic OApp configurations.\n */\nabstract contract OAppCore is IOAppCore, Ownable {\n    // The LayerZero endpoint associated with the given OApp\n    ILayerZeroEndpointV2 public immutable endpoint;\n\n    // Mapping to store peers associated with corresponding endpoints\n    mapping(uint32 eid => bytes32 peer) public peers;\n\n    /**\n     * @dev Constructor to initialize the OAppCore with the provided endpoint and delegate.\n     * @param _endpoint The address of the LOCAL Layer Zero endpoint.\n     * @param _delegate The delegate capable of making OApp configurations inside of the endpoint.\n     *\n     * @dev The delegate typically should be set as the owner of the contract.\n     */\n    constructor(address _endpoint, address _delegate) {\n        endpoint = ILayerZeroEndpointV2(_endpoint);\n\n        if (_delegate == address(0)) revert InvalidDelegate();\n        endpoint.setDelegate(_delegate);\n    }\n\n    /**\n     * @notice Sets the peer address (OApp instance) for a corresponding endpoint.\n     * @param _eid The endpoint ID.\n     * @param _peer The address of the peer to be associated with the corresponding endpoint.\n     *\n     * @dev Only the owner/admin of the OApp can call this function.\n     * @dev Indicates that the peer is trusted to send LayerZero messages to this OApp.\n     * @dev Set this to bytes32(0) to remove the peer address.\n     * @dev Peer is a bytes32 to accommodate non-evm chains.\n     */\n    function setPeer(uint32 _eid, bytes32 _peer) public virtual onlyOwner {\n        _setPeer(_eid, _peer);\n    }\n\n    /**\n     * @notice Sets the peer address (OApp instance) for a corresponding endpoint.\n     * @param _eid The endpoint ID.\n     * @param _peer The address of the peer to be associated with the corresponding endpoint.\n     *\n     * @dev Indicates that the peer is trusted to send LayerZero messages to this OApp.\n     * @dev Set this to bytes32(0) to remove the peer address.\n     * @dev Peer is a bytes32 to accommodate non-evm chains.\n     */\n    function _setPeer(uint32 _eid, bytes32 _peer) internal virtual {\n        peers[_eid] = _peer;\n        emit PeerSet(_eid, _peer);\n    }\n\n    /**\n     * @notice Internal function to get the peer address associated with a specific endpoint; reverts if NOT set.\n     * ie. the peer is set to bytes32(0).\n     * @param _eid The endpoint ID.\n     * @return peer The address of the peer associated with the specified endpoint.\n     */\n    function _getPeerOrRevert(uint32 _eid) internal view virtual returns (bytes32) {\n        bytes32 peer = peers[_eid];\n        if (peer == bytes32(0)) revert NoPeer(_eid);\n        return peer;\n    }\n\n    /**\n     * @notice Sets the delegate address for the OApp.\n     * @param _delegate The address of the delegate to be set.\n     *\n     * @dev Only the owner/admin of the OApp can call this function.\n     * @dev Provides the ability for a delegate to set configs, on behalf of the OApp, directly on the Endpoint contract.\n     */\n    function setDelegate(address _delegate) public onlyOwner {\n        endpoint.setDelegate(_delegate);\n    }\n}\n"
        },
        "@layerzerolabs/oapp-evm/contracts/oapp/OAppReceiver.sol": {
          "content": "// SPDX-License-Identifier: MIT\n\npragma solidity ^0.8.20;\n\nimport { IOAppReceiver, Origin } from \"./interfaces/IOAppReceiver.sol\";\nimport { OAppCore } from \"./OAppCore.sol\";\n\n/**\n * @title OAppReceiver\n * @dev Abstract contract implementing the ILayerZeroReceiver interface and extending OAppCore for OApp receivers.\n */\nabstract contract OAppReceiver is IOAppReceiver, OAppCore {\n    // Custom error message for when the caller is not the registered endpoint/\n    error OnlyEndpoint(address addr);\n\n    // @dev The version of the OAppReceiver implementation.\n    // @dev Version is bumped when changes are made to this contract.\n    uint64 internal constant RECEIVER_VERSION = 2;\n\n    /**\n     * @notice Retrieves the OApp version information.\n     * @return senderVersion The version of the OAppSender.sol contract.\n     * @return receiverVersion The version of the OAppReceiver.sol contract.\n     *\n     * @dev Providing 0 as the default for OAppSender version. Indicates that the OAppSender is not implemented.\n     * ie. this is a RECEIVE only OApp.\n     * @dev If the OApp uses both OAppSender and OAppReceiver, then this needs to be override returning the correct versions.\n     */\n    function oAppVersion() public view virtual returns (uint64 senderVersion, uint64 receiverVersion) {\n        return (0, RECEIVER_VERSION);\n    }\n\n    /**\n     * @notice Indicates whether an address is an approved composeMsg sender to the Endpoint.\n     * @dev _origin The origin information containing the source endpoint and sender address.\n     *  - srcEid: The source chain endpoint ID.\n     *  - sender: The sender address on the src chain.\n     *  - nonce: The nonce of the message.\n     * @dev _message The lzReceive payload.\n     * @param _sender The sender address.\n     * @return isSender Is a valid sender.\n     *\n     * @dev Applications can optionally choose to implement separate composeMsg senders that are NOT the bridging layer.\n     * @dev The default sender IS the OAppReceiver implementer.\n     */\n    function isComposeMsgSender(\n        Origin calldata /*_origin*/,\n        bytes calldata /*_message*/,\n        address _sender\n    ) public view virtual returns (bool) {\n        return _sender == address(this);\n    }\n\n    /**\n     * @notice Checks if the path initialization is allowed based on the provided origin.\n     * @param origin The origin information containing the source endpoint and sender address.\n     * @return Whether the path has been initialized.\n     *\n     * @dev This indicates to the endpoint that the OApp has enabled msgs for this particular path to be received.\n     * @dev This defaults to assuming if a peer has been set, its initialized.\n     * Can be overridden by the OApp if there is other logic to determine this.\n     */\n    function allowInitializePath(Origin calldata origin) public view virtual returns (bool) {\n        return peers[origin.srcEid] == origin.sender;\n    }\n\n    /**\n     * @notice Retrieves the next nonce for a given source endpoint and sender address.\n     * @dev _srcEid The source endpoint ID.\n     * @dev _sender The sender address.\n     * @return nonce The next nonce.\n     *\n     * @dev The path nonce starts from 1. If 0 is returned it means that there is NO nonce ordered enforcement.\n     * @dev Is required by the off-chain executor to determine the OApp expects msg execution is ordered.\n     * @dev This is also enforced by the OApp.\n     * @dev By default this is NOT enabled. ie. nextNonce is hardcoded to return 0.\n     */\n    function nextNonce(uint32 /*_srcEid*/, bytes32 /*_sender*/) public view virtual returns (uint64 nonce) {\n        return 0;\n    }\n\n    /**\n     * @dev Entry point for receiving messages or packets from the endpoint.\n     * @param _origin The origin information containing the source endpoint and sender address.\n     *  - srcEid: The source chain endpoint ID.\n     *  - sender: The sender address on the src chain.\n     *  - nonce: The nonce of the message.\n     * @param _guid The unique identifier for the received LayerZero message.\n     * @param _message The payload of the received message.\n     * @param _executor The address of the executor for the received message.\n     * @param _extraData Additional arbitrary data provided by the corresponding executor.\n     *\n     * @dev Entry point for receiving msg/packet from the LayerZero endpoint.\n     */\n    function lzReceive(\n        Origin calldata _origin,\n        bytes32 _guid,\n        bytes calldata _message,\n        address _executor,\n        bytes calldata _extraData\n    ) public payable virtual {\n        // Ensures that only the endpoint can attempt to lzReceive() messages to this OApp.\n        if (address(endpoint) != msg.sender) revert OnlyEndpoint(msg.sender);\n\n        // Ensure that the sender matches the expected peer for the source endpoint.\n        if (_getPeerOrRevert(_origin.srcEid) != _origin.sender) revert OnlyPeer(_origin.srcEid, _origin.sender);\n\n        // Call the internal OApp implementation of lzReceive.\n        _lzReceive(_origin, _guid, _message, _executor, _extraData);\n    }\n\n    /**\n     * @dev Internal function to implement lzReceive logic without needing to copy the basic parameter validation.\n     */\n    function _lzReceive(\n        Origin calldata _origin,\n        bytes32 _guid,\n        bytes calldata _message,\n        address _executor,\n        bytes calldata _extraData\n    ) internal virtual;\n}\n"
        },
        "@layerzerolabs/oapp-evm/contracts/oapp/OAppSender.sol": {
          "content": "// SPDX-License-Identifier: MIT\n\npragma solidity ^0.8.20;\n\nimport { SafeERC20, IERC20 } from \"@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol\";\nimport { MessagingParams, MessagingFee, MessagingReceipt } from \"@layerzerolabs/lz-evm-protocol-v2/contracts/interfaces/ILayerZeroEndpointV2.sol\";\nimport { OAppCore } from \"./OAppCore.sol\";\n\n/**\n * @title OAppSender\n * @dev Abstract contract implementing the OAppSender functionality for sending messages to a LayerZero endpoint.\n */\nabstract contract OAppSender is OAppCore {\n    using SafeERC20 for IERC20;\n\n    // Custom error messages\n    error NotEnoughNative(uint256 msgValue);\n    error LzTokenUnavailable();\n\n    // @dev The version of the OAppSender implementation.\n    // @dev Version is bumped when changes are made to this contract.\n    uint64 internal constant SENDER_VERSION = 1;\n\n    /**\n     * @notice Retrieves the OApp version information.\n     * @return senderVersion The version of the OAppSender.sol contract.\n     * @return receiverVersion The version of the OAppReceiver.sol contract.\n     *\n     * @dev Providing 0 as the default for OAppReceiver version. Indicates that the OAppReceiver is not implemented.\n     * ie. this is a SEND only OApp.\n     * @dev If the OApp uses both OAppSender and OAppReceiver, then this needs to be override returning the correct versions\n     */\n    function oAppVersion() public view virtual returns (uint64 senderVersion, uint64 receiverVersion) {\n        return (SENDER_VERSION, 0);\n    }\n\n    /**\n     * @dev Internal function to interact with the LayerZero EndpointV2.quote() for fee calculation.\n     * @param _dstEid The destination endpoint ID.\n     * @param _message The message payload.\n     * @param _options Additional options for the message.\n     * @param _payInLzToken Flag indicating whether to pay the fee in LZ tokens.\n     * @return fee The calculated MessagingFee for the message.\n     *      - nativeFee: The native fee for the message.\n     *      - lzTokenFee: The LZ token fee for the message.\n     */\n    function _quote(\n        uint32 _dstEid,\n        bytes memory _message,\n        bytes memory _options,\n        bool _payInLzToken\n    ) internal view virtual returns (MessagingFee memory fee) {\n        return\n            endpoint.quote(\n                MessagingParams(_dstEid, _getPeerOrRevert(_dstEid), _message, _options, _payInLzToken),\n                address(this)\n            );\n    }\n\n    /**\n     * @dev Internal function to interact with the LayerZero EndpointV2.send() for sending a message.\n     * @param _dstEid The destination endpoint ID.\n     * @param _message The message payload.\n     * @param _options Additional options for the message.\n     * @param _fee The calculated LayerZero fee for the message.\n     *      - nativeFee: The native fee.\n     *      - lzTokenFee: The lzToken fee.\n     * @param _refundAddress The address to receive any excess fee values sent to the endpoint.\n     * @return receipt The receipt for the sent message.\n     *      - guid: The unique identifier for the sent message.\n     *      - nonce: The nonce of the sent message.\n     *      - fee: The LayerZero fee incurred for the message.\n     */\n    function _lzSend(\n        uint32 _dstEid,\n        bytes memory _message,\n        bytes memory _options,\n        MessagingFee memory _fee,\n        address _refundAddress\n    ) internal virtual returns (MessagingReceipt memory receipt) {\n        // @dev Push corresponding fees to the endpoint, any excess is sent back to the _refundAddress from the endpoint.\n        uint256 messageValue = _payNative(_fee.nativeFee);\n        if (_fee.lzTokenFee > 0) _payLzToken(_fee.lzTokenFee);\n\n        return\n            // solhint-disable-next-line check-send-result\n            endpoint.send{ value: messageValue }(\n                MessagingParams(_dstEid, _getPeerOrRevert(_dstEid), _message, _options, _fee.lzTokenFee > 0),\n                _refundAddress\n            );\n    }\n\n    /**\n     * @dev Internal function to pay the native fee associated with the message.\n     * @param _nativeFee The native fee to be paid.\n     * @return nativeFee The amount of native currency paid.\n     *\n     * @dev If the OApp needs to initiate MULTIPLE LayerZero messages in a single transaction,\n     * this will need to be overridden because msg.value would contain multiple lzFees.\n     * @dev Should be overridden in the event the LayerZero endpoint requires a different native currency.\n     * @dev Some EVMs use an ERC20 as a method for paying transactions/gasFees.\n     * @dev The endpoint is EITHER/OR, ie. it will NOT support both types of native payment at a time.\n     */\n    function _payNative(uint256 _nativeFee) internal virtual returns (uint256 nativeFee) {\n        if (msg.value != _nativeFee) revert NotEnoughNative(msg.value);\n        return _nativeFee;\n    }\n\n    /**\n     * @dev Internal function to pay the LZ token fee associated with the message.\n     * @param _lzTokenFee The LZ token fee to be paid.\n     *\n     * @dev If the caller is trying to pay in the specified lzToken, then the lzTokenFee is passed to the endpoint.\n     * @dev Any excess sent, is passed back to the specified _refundAddress in the _lzSend().\n     */\n    function _payLzToken(uint256 _lzTokenFee) internal virtual {\n        // @dev Cannot cache the token because it is not immutable in the endpoint.\n        address lzToken = endpoint.lzToken();\n        if (lzToken == address(0)) revert LzTokenUnavailable();\n\n        // Pay LZ token fee by sending tokens to the endpoint.\n        IERC20(lzToken).safeTransferFrom(msg.sender, address(endpoint), _lzTokenFee);\n    }\n}\n"
        },
        "@layerzerolabs/oapp-evm/contracts/precrime/interfaces/IOAppPreCrimeSimulator.sol": {
          "content": "// SPDX-License-Identifier: MIT\n\npragma solidity ^0.8.20;\n\n// @dev Import the Origin so it's exposed to OAppPreCrimeSimulator implementers.\n// solhint-disable-next-line no-unused-import\nimport { InboundPacket, Origin } from \"../libs/Packet.sol\";\n\n/**\n * @title IOAppPreCrimeSimulator Interface\n * @dev Interface for the preCrime simulation functionality in an OApp.\n */\ninterface IOAppPreCrimeSimulator {\n    // @dev simulation result used in PreCrime implementation\n    error SimulationResult(bytes result);\n    error OnlySelf();\n\n    /**\n     * @dev Emitted when the preCrime contract address is set.\n     * @param preCrimeAddress The address of the preCrime contract.\n     */\n    event PreCrimeSet(address preCrimeAddress);\n\n    /**\n     * @dev Retrieves the address of the preCrime contract implementation.\n     * @return The address of the preCrime contract.\n     */\n    function preCrime() external view returns (address);\n\n    /**\n     * @dev Retrieves the address of the OApp contract.\n     * @return The address of the OApp contract.\n     */\n    function oApp() external view returns (address);\n\n    /**\n     * @dev Sets the preCrime contract address.\n     * @param _preCrime The address of the preCrime contract.\n     */\n    function setPreCrime(address _preCrime) external;\n\n    /**\n     * @dev Mocks receiving a packet, then reverts with a series of data to infer the state/result.\n     * @param _packets An array of LayerZero InboundPacket objects representing received packets.\n     */\n    function lzReceiveAndRevert(InboundPacket[] calldata _packets) external payable;\n\n    /**\n     * @dev checks if the specified peer is considered 'trusted' by the OApp.\n     * @param _eid The endpoint Id to check.\n     * @param _peer The peer to check.\n     * @return Whether the peer passed is considered 'trusted' by the OApp.\n     */\n    function isPeer(uint32 _eid, bytes32 _peer) external view returns (bool);\n}\n"
        },
        "@layerzerolabs/oapp-evm/contracts/precrime/interfaces/IPreCrime.sol": {
          "content": "// SPDX-License-Identifier: MIT\n\npragma solidity ^0.8.20;\nstruct PreCrimePeer {\n    uint32 eid;\n    bytes32 preCrime;\n    bytes32 oApp;\n}\n\n// TODO not done yet\ninterface IPreCrime {\n    error OnlyOffChain();\n\n    // for simulate()\n    error PacketOversize(uint256 max, uint256 actual);\n    error PacketUnsorted();\n    error SimulationFailed(bytes reason);\n\n    // for preCrime()\n    error SimulationResultNotFound(uint32 eid);\n    error InvalidSimulationResult(uint32 eid, bytes reason);\n    error CrimeFound(bytes crime);\n\n    function getConfig(bytes[] calldata _packets, uint256[] calldata _packetMsgValues) external returns (bytes memory);\n\n    function simulate(\n        bytes[] calldata _packets,\n        uint256[] calldata _packetMsgValues\n    ) external payable returns (bytes memory);\n\n    function buildSimulationResult() external view returns (bytes memory);\n\n    function preCrime(\n        bytes[] calldata _packets,\n        uint256[] calldata _packetMsgValues,\n        bytes[] calldata _simulations\n    ) external;\n\n    function version() external view returns (uint64 major, uint8 minor);\n}\n"
        },
        "@layerzerolabs/oapp-evm/contracts/precrime/libs/Packet.sol": {
          "content": "// SPDX-License-Identifier: MIT\n\npragma solidity ^0.8.20;\n\nimport { Origin } from \"@layerzerolabs/lz-evm-protocol-v2/contracts/interfaces/ILayerZeroEndpointV2.sol\";\nimport { PacketV1Codec } from \"@layerzerolabs/lz-evm-protocol-v2/contracts/messagelib/libs/PacketV1Codec.sol\";\n\n/**\n * @title InboundPacket\n * @dev Structure representing an inbound packet received by the contract.\n */\nstruct InboundPacket {\n    Origin origin; // Origin information of the packet.\n    uint32 dstEid; // Destination endpointId of the packet.\n    address receiver; // Receiver address for the packet.\n    bytes32 guid; // Unique identifier of the packet.\n    uint256 value; // msg.value of the packet.\n    address executor; // Executor address for the packet.\n    bytes message; // Message payload of the packet.\n    bytes extraData; // Additional arbitrary data for the packet.\n}\n\n/**\n * @title PacketDecoder\n * @dev Library for decoding LayerZero packets.\n */\nlibrary PacketDecoder {\n    using PacketV1Codec for bytes;\n\n    /**\n     * @dev Decode an inbound packet from the given packet data.\n     * @param _packet The packet data to decode.\n     * @return packet An InboundPacket struct representing the decoded packet.\n     */\n    function decode(bytes calldata _packet) internal pure returns (InboundPacket memory packet) {\n        packet.origin = Origin(_packet.srcEid(), _packet.sender(), _packet.nonce());\n        packet.dstEid = _packet.dstEid();\n        packet.receiver = _packet.receiverB20();\n        packet.guid = _packet.guid();\n        packet.message = _packet.message();\n    }\n\n    /**\n     * @dev Decode multiple inbound packets from the given packet data and associated message values.\n     * @param _packets An array of packet data to decode.\n     * @param _packetMsgValues An array of associated message values for each packet.\n     * @return packets An array of InboundPacket structs representing the decoded packets.\n     */\n    function decode(\n        bytes[] calldata _packets,\n        uint256[] memory _packetMsgValues\n    ) internal pure returns (InboundPacket[] memory packets) {\n        packets = new InboundPacket[](_packets.length);\n        for (uint256 i = 0; i < _packets.length; i++) {\n            bytes calldata packet = _packets[i];\n            packets[i] = PacketDecoder.decode(packet);\n            // @dev Allows the verifier to specify the msg.value that gets passed in lzReceive.\n            packets[i].value = _packetMsgValues[i];\n        }\n    }\n}\n"
        },
        "@layerzerolabs/oapp-evm/contracts/precrime/OAppPreCrimeSimulator.sol": {
          "content": "// SPDX-License-Identifier: MIT\n\npragma solidity ^0.8.20;\n\nimport { Ownable } from \"@openzeppelin/contracts/access/Ownable.sol\";\nimport { IPreCrime } from \"./interfaces/IPreCrime.sol\";\nimport { IOAppPreCrimeSimulator, InboundPacket, Origin } from \"./interfaces/IOAppPreCrimeSimulator.sol\";\n\n/**\n * @title OAppPreCrimeSimulator\n * @dev Abstract contract serving as the base for preCrime simulation functionality in an OApp.\n */\nabstract contract OAppPreCrimeSimulator is IOAppPreCrimeSimulator, Ownable {\n    // The address of the preCrime implementation.\n    address public preCrime;\n\n    /**\n     * @dev Retrieves the address of the OApp contract.\n     * @return The address of the OApp contract.\n     *\n     * @dev The simulator contract is the base contract for the OApp by default.\n     * @dev If the simulator is a separate contract, override this function.\n     */\n    function oApp() external view virtual returns (address) {\n        return address(this);\n    }\n\n    /**\n     * @dev Sets the preCrime contract address.\n     * @param _preCrime The address of the preCrime contract.\n     */\n    function setPreCrime(address _preCrime) public virtual onlyOwner {\n        preCrime = _preCrime;\n        emit PreCrimeSet(_preCrime);\n    }\n\n    /**\n     * @dev Interface for pre-crime simulations. Always reverts at the end with the simulation results.\n     * @param _packets An array of InboundPacket objects representing received packets to be delivered.\n     *\n     * @dev WARNING: MUST revert at the end with the simulation results.\n     * @dev Gives the preCrime implementation the ability to mock sending packets to the lzReceive function,\n     * WITHOUT actually executing them.\n     */\n    function lzReceiveAndRevert(InboundPacket[] calldata _packets) public payable virtual {\n        for (uint256 i = 0; i < _packets.length; i++) {\n            InboundPacket calldata packet = _packets[i];\n\n            // Ignore packets that are not from trusted peers.\n            if (!isPeer(packet.origin.srcEid, packet.origin.sender)) continue;\n\n            // @dev Because a verifier is calling this function, it doesnt have access to executor params:\n            //  - address _executor\n            //  - bytes calldata _extraData\n            // preCrime will NOT work for OApps that rely on these two parameters inside of their _lzReceive().\n            // They are instead stubbed to default values, address(0) and bytes(\"\")\n            // @dev Calling this.lzReceiveSimulate removes ability for assembly return 0 callstack exit,\n            // which would cause the revert to be ignored.\n            this.lzReceiveSimulate{ value: packet.value }(\n                packet.origin,\n                packet.guid,\n                packet.message,\n                packet.executor,\n                packet.extraData\n            );\n        }\n\n        // @dev Revert with the simulation results. msg.sender must implement IPreCrime.buildSimulationResult().\n        revert SimulationResult(IPreCrime(msg.sender).buildSimulationResult());\n    }\n\n    /**\n     * @dev Is effectively an internal function because msg.sender must be address(this).\n     * Allows resetting the call stack for 'internal' calls.\n     * @param _origin The origin information containing the source endpoint and sender address.\n     *  - srcEid: The source chain endpoint ID.\n     *  - sender: The sender address on the src chain.\n     *  - nonce: The nonce of the message.\n     * @param _guid The unique identifier of the packet.\n     * @param _message The message payload of the packet.\n     * @param _executor The executor address for the packet.\n     * @param _extraData Additional data for the packet.\n     */\n    function lzReceiveSimulate(\n        Origin calldata _origin,\n        bytes32 _guid,\n        bytes calldata _message,\n        address _executor,\n        bytes calldata _extraData\n    ) external payable virtual {\n        // @dev Ensure ONLY can be called 'internally'.\n        if (msg.sender != address(this)) revert OnlySelf();\n        _lzReceiveSimulate(_origin, _guid, _message, _executor, _extraData);\n    }\n\n    /**\n     * @dev Internal function to handle the OAppPreCrimeSimulator simulated receive.\n     * @param _origin The origin information.\n     *  - srcEid: The source chain endpoint ID.\n     *  - sender: The sender address from the src chain.\n     *  - nonce: The nonce of the LayerZero message.\n     * @param _guid The GUID of the LayerZero message.\n     * @param _message The LayerZero message.\n     * @param _executor The address of the off-chain executor.\n     * @param _extraData Arbitrary data passed by the msg executor.\n     *\n     * @dev Enables the preCrime simulator to mock sending lzReceive() messages,\n     * routes the msg down from the OAppPreCrimeSimulator, and back up to the OAppReceiver.\n     */\n    function _lzReceiveSimulate(\n        Origin calldata _origin,\n        bytes32 _guid,\n        bytes calldata _message,\n        address _executor,\n        bytes calldata _extraData\n    ) internal virtual;\n\n    /**\n     * @dev checks if the specified peer is considered 'trusted' by the OApp.\n     * @param _eid The endpoint Id to check.\n     * @param _peer The peer to check.\n     * @return Whether the peer passed is considered 'trusted' by the OApp.\n     */\n    function isPeer(uint32 _eid, bytes32 _peer) public view virtual returns (bool);\n}\n"
        },
        "@layerzerolabs/oft-evm/contracts/interfaces/IOFT.sol": {
          "content": "// SPDX-License-Identifier: MIT\n\npragma solidity ^0.8.20;\n\nimport { MessagingReceipt, MessagingFee } from \"@layerzerolabs/oapp-evm/contracts/oapp/OAppSender.sol\";\n\n/**\n * @dev Struct representing token parameters for the OFT send() operation.\n */\nstruct SendParam {\n    uint32 dstEid; // Destination endpoint ID.\n    bytes32 to; // Recipient address.\n    uint256 amountLD; // Amount to send in local decimals.\n    uint256 minAmountLD; // Minimum amount to send in local decimals.\n    bytes extraOptions; // Additional options supplied by the caller to be used in the LayerZero message.\n    bytes composeMsg; // The composed message for the send() operation.\n    bytes oftCmd; // The OFT command to be executed, unused in default OFT implementations.\n}\n\n/**\n * @dev Struct representing OFT limit information.\n * @dev These amounts can change dynamically and are up the specific oft implementation.\n */\nstruct OFTLimit {\n    uint256 minAmountLD; // Minimum amount in local decimals that can be sent to the recipient.\n    uint256 maxAmountLD; // Maximum amount in local decimals that can be sent to the recipient.\n}\n\n/**\n * @dev Struct representing OFT receipt information.\n */\nstruct OFTReceipt {\n    uint256 amountSentLD; // Amount of tokens ACTUALLY debited from the sender in local decimals.\n    // @dev In non-default implementations, the amountReceivedLD COULD differ from this value.\n    uint256 amountReceivedLD; // Amount of tokens to be received on the remote side.\n}\n\n/**\n * @dev Struct representing OFT fee details.\n * @dev Future proof mechanism to provide a standardized way to communicate fees to things like a UI.\n */\nstruct OFTFeeDetail {\n    int256 feeAmountLD; // Amount of the fee in local decimals.\n    string description; // Description of the fee.\n}\n\n/**\n * @title IOFT\n * @dev Interface for the OftChain (OFT) token.\n * @dev Does not inherit ERC20 to accommodate usage by OFTAdapter as well.\n * @dev This specific interface ID is '0x02e49c2c'.\n */\ninterface IOFT {\n    // Custom error messages\n    error InvalidLocalDecimals();\n    error SlippageExceeded(uint256 amountLD, uint256 minAmountLD);\n    error AmountSDOverflowed(uint256 amountSD);\n\n    // Events\n    event OFTSent(\n        bytes32 indexed guid, // GUID of the OFT message.\n        uint32 dstEid, // Destination Endpoint ID.\n        address indexed fromAddress, // Address of the sender on the src chain.\n        uint256 amountSentLD, // Amount of tokens sent in local decimals.\n        uint256 amountReceivedLD // Amount of tokens received in local decimals.\n    );\n    event OFTReceived(\n        bytes32 indexed guid, // GUID of the OFT message.\n        uint32 srcEid, // Source Endpoint ID.\n        address indexed toAddress, // Address of the recipient on the dst chain.\n        uint256 amountReceivedLD // Amount of tokens received in local decimals.\n    );\n\n    /**\n     * @notice Retrieves interfaceID and the version of the OFT.\n     * @return interfaceId The interface ID.\n     * @return version The version.\n     *\n     * @dev interfaceId: This specific interface ID is '0x02e49c2c'.\n     * @dev version: Indicates a cross-chain compatible msg encoding with other OFTs.\n     * @dev If a new feature is added to the OFT cross-chain msg encoding, the version will be incremented.\n     * ie. localOFT version(x,1) CAN send messages to remoteOFT version(x,1)\n     */\n    function oftVersion() external view returns (bytes4 interfaceId, uint64 version);\n\n    /**\n     * @notice Retrieves the address of the token associated with the OFT.\n     * @return token The address of the ERC20 token implementation.\n     */\n    function token() external view returns (address);\n\n    /**\n     * @notice Indicates whether the OFT contract requires approval of the 'token()' to send.\n     * @return requiresApproval Needs approval of the underlying token implementation.\n     *\n     * @dev Allows things like wallet implementers to determine integration requirements,\n     * without understanding the underlying token implementation.\n     */\n    function approvalRequired() external view returns (bool);\n\n    /**\n     * @notice Retrieves the shared decimals of the OFT.\n     * @return sharedDecimals The shared decimals of the OFT.\n     */\n    function sharedDecimals() external view returns (uint8);\n\n    /**\n     * @notice Provides the fee breakdown and settings data for an OFT. Unused in the default implementation.\n     * @param _sendParam The parameters for the send operation.\n     * @return limit The OFT limit information.\n     * @return oftFeeDetails The details of OFT fees.\n     * @return receipt The OFT receipt information.\n     */\n    function quoteOFT(\n        SendParam calldata _sendParam\n    ) external view returns (OFTLimit memory, OFTFeeDetail[] memory oftFeeDetails, OFTReceipt memory);\n\n    /**\n     * @notice Provides a quote for the send() operation.\n     * @param _sendParam The parameters for the send() operation.\n     * @param _payInLzToken Flag indicating whether the caller is paying in the LZ token.\n     * @return fee The calculated LayerZero messaging fee from the send() operation.\n     *\n     * @dev MessagingFee: LayerZero msg fee\n     *  - nativeFee: The native fee.\n     *  - lzTokenFee: The lzToken fee.\n     */\n    function quoteSend(SendParam calldata _sendParam, bool _payInLzToken) external view returns (MessagingFee memory);\n\n    /**\n     * @notice Executes the send() operation.\n     * @param _sendParam The parameters for the send operation.\n     * @param _fee The fee information supplied by the caller.\n     *      - nativeFee: The native fee.\n     *      - lzTokenFee: The lzToken fee.\n     * @param _refundAddress The address to receive any excess funds from fees etc. on the src.\n     * @return receipt The LayerZero messaging receipt from the send() operation.\n     * @return oftReceipt The OFT receipt information.\n     *\n     * @dev MessagingReceipt: LayerZero msg receipt\n     *  - guid: The unique identifier for the sent message.\n     *  - nonce: The nonce of the sent message.\n     *  - fee: The LayerZero fee incurred for the message.\n     */\n    function send(\n        SendParam calldata _sendParam,\n        MessagingFee calldata _fee,\n        address _refundAddress\n    ) external payable returns (MessagingReceipt memory, OFTReceipt memory);\n}\n"
        },
        "@layerzerolabs/oft-evm/contracts/libs/OFTComposeMsgCodec.sol": {
          "content": "// SPDX-License-Identifier: MIT\n\npragma solidity ^0.8.20;\n\nlibrary OFTComposeMsgCodec {\n    // Offset constants for decoding composed messages\n    uint8 private constant NONCE_OFFSET = 8;\n    uint8 private constant SRC_EID_OFFSET = 12;\n    uint8 private constant AMOUNT_LD_OFFSET = 44;\n    uint8 private constant COMPOSE_FROM_OFFSET = 76;\n\n    /**\n     * @dev Encodes a OFT composed message.\n     * @param _nonce The nonce value.\n     * @param _srcEid The source endpoint ID.\n     * @param _amountLD The amount in local decimals.\n     * @param _composeMsg The composed message.\n     * @return _msg The encoded Composed message.\n     */\n    function encode(\n        uint64 _nonce,\n        uint32 _srcEid,\n        uint256 _amountLD,\n        bytes memory _composeMsg // 0x[composeFrom][composeMsg]\n    ) internal pure returns (bytes memory _msg) {\n        _msg = abi.encodePacked(_nonce, _srcEid, _amountLD, _composeMsg);\n    }\n\n    /**\n     * @dev Retrieves the nonce for the composed message.\n     * @param _msg The message.\n     * @return The nonce value.\n     */\n    function nonce(bytes calldata _msg) internal pure returns (uint64) {\n        return uint64(bytes8(_msg[:NONCE_OFFSET]));\n    }\n\n    /**\n     * @dev Retrieves the source endpoint ID for the composed message.\n     * @param _msg The message.\n     * @return The source endpoint ID.\n     */\n    function srcEid(bytes calldata _msg) internal pure returns (uint32) {\n        return uint32(bytes4(_msg[NONCE_OFFSET:SRC_EID_OFFSET]));\n    }\n\n    /**\n     * @dev Retrieves the amount in local decimals from the composed message.\n     * @param _msg The message.\n     * @return The amount in local decimals.\n     */\n    function amountLD(bytes calldata _msg) internal pure returns (uint256) {\n        return uint256(bytes32(_msg[SRC_EID_OFFSET:AMOUNT_LD_OFFSET]));\n    }\n\n    /**\n     * @dev Retrieves the composeFrom value from the composed message.\n     * @param _msg The message.\n     * @return The composeFrom value.\n     */\n    function composeFrom(bytes calldata _msg) internal pure returns (bytes32) {\n        return bytes32(_msg[AMOUNT_LD_OFFSET:COMPOSE_FROM_OFFSET]);\n    }\n\n    /**\n     * @dev Retrieves the composed message.\n     * @param _msg The message.\n     * @return The composed message.\n     */\n    function composeMsg(bytes calldata _msg) internal pure returns (bytes memory) {\n        return _msg[COMPOSE_FROM_OFFSET:];\n    }\n\n    /**\n     * @dev Converts an address to bytes32.\n     * @param _addr The address to convert.\n     * @return The bytes32 representation of the address.\n     */\n    function addressToBytes32(address _addr) internal pure returns (bytes32) {\n        return bytes32(uint256(uint160(_addr)));\n    }\n\n    /**\n     * @dev Converts bytes32 to an address.\n     * @param _b The bytes32 value to convert.\n     * @return The address representation of bytes32.\n     */\n    function bytes32ToAddress(bytes32 _b) internal pure returns (address) {\n        return address(uint160(uint256(_b)));\n    }\n}\n"
        },
        "@layerzerolabs/oft-evm/contracts/libs/OFTMsgCodec.sol": {
          "content": "// SPDX-License-Identifier: MIT\n\npragma solidity ^0.8.20;\n\nlibrary OFTMsgCodec {\n    // Offset constants for encoding and decoding OFT messages\n    uint8 private constant SEND_TO_OFFSET = 32;\n    uint8 private constant SEND_AMOUNT_SD_OFFSET = 40;\n\n    /**\n     * @dev Encodes an OFT LayerZero message.\n     * @param _sendTo The recipient address.\n     * @param _amountShared The amount in shared decimals.\n     * @param _composeMsg The composed message.\n     * @return _msg The encoded message.\n     * @return hasCompose A boolean indicating whether the message has a composed payload.\n     */\n    function encode(\n        bytes32 _sendTo,\n        uint64 _amountShared,\n        bytes memory _composeMsg\n    ) internal view returns (bytes memory _msg, bool hasCompose) {\n        hasCompose = _composeMsg.length > 0;\n        // @dev Remote chains will want to know the composed function caller ie. msg.sender on the src.\n        _msg = hasCompose\n            ? abi.encodePacked(_sendTo, _amountShared, addressToBytes32(msg.sender), _composeMsg)\n            : abi.encodePacked(_sendTo, _amountShared);\n    }\n\n    /**\n     * @dev Checks if the OFT message is composed.\n     * @param _msg The OFT message.\n     * @return A boolean indicating whether the message is composed.\n     */\n    function isComposed(bytes calldata _msg) internal pure returns (bool) {\n        return _msg.length > SEND_AMOUNT_SD_OFFSET;\n    }\n\n    /**\n     * @dev Retrieves the recipient address from the OFT message.\n     * @param _msg The OFT message.\n     * @return The recipient address.\n     */\n    function sendTo(bytes calldata _msg) internal pure returns (bytes32) {\n        return bytes32(_msg[:SEND_TO_OFFSET]);\n    }\n\n    /**\n     * @dev Retrieves the amount in shared decimals from the OFT message.\n     * @param _msg The OFT message.\n     * @return The amount in shared decimals.\n     */\n    function amountSD(bytes calldata _msg) internal pure returns (uint64) {\n        return uint64(bytes8(_msg[SEND_TO_OFFSET:SEND_AMOUNT_SD_OFFSET]));\n    }\n\n    /**\n     * @dev Retrieves the composed message from the OFT message.\n     * @param _msg The OFT message.\n     * @return The composed message.\n     */\n    function composeMsg(bytes calldata _msg) internal pure returns (bytes memory) {\n        return _msg[SEND_AMOUNT_SD_OFFSET:];\n    }\n\n    /**\n     * @dev Converts an address to bytes32.\n     * @param _addr The address to convert.\n     * @return The bytes32 representation of the address.\n     */\n    function addressToBytes32(address _addr) internal pure returns (bytes32) {\n        return bytes32(uint256(uint160(_addr)));\n    }\n\n    /**\n     * @dev Converts bytes32 to an address.\n     * @param _b The bytes32 value to convert.\n     * @return The address representation of bytes32.\n     */\n    function bytes32ToAddress(bytes32 _b) internal pure returns (address) {\n        return address(uint160(uint256(_b)));\n    }\n}\n"
        },
        "@layerzerolabs/oft-evm/contracts/OFT.sol": {
          "content": "// SPDX-License-Identifier: MIT\n\npragma solidity ^0.8.20;\n\nimport { ERC20 } from \"@openzeppelin/contracts/token/ERC20/ERC20.sol\";\nimport { IOFT, OFTCore } from \"./OFTCore.sol\";\n\n/**\n * @title OFT Contract\n * @dev OFT is an ERC-20 token that extends the functionality of the OFTCore contract.\n */\nabstract contract OFT is OFTCore, ERC20 {\n    /**\n     * @dev Constructor for the OFT contract.\n     * @param _name The name of the OFT.\n     * @param _symbol The symbol of the OFT.\n     * @param _lzEndpoint The LayerZero endpoint address.\n     * @param _delegate The delegate capable of making OApp configurations inside of the endpoint.\n     */\n    constructor(\n        string memory _name,\n        string memory _symbol,\n        address _lzEndpoint,\n        address _delegate\n    ) ERC20(_name, _symbol) OFTCore(decimals(), _lzEndpoint, _delegate) {}\n\n    /**\n     * @dev Retrieves the address of the underlying ERC20 implementation.\n     * @return The address of the OFT token.\n     *\n     * @dev In the case of OFT, address(this) and erc20 are the same contract.\n     */\n    function token() public view returns (address) {\n        return address(this);\n    }\n\n    /**\n     * @notice Indicates whether the OFT contract requires approval of the 'token()' to send.\n     * @return requiresApproval Needs approval of the underlying token implementation.\n     *\n     * @dev In the case of OFT where the contract IS the token, approval is NOT required.\n     */\n    function approvalRequired() external pure virtual returns (bool) {\n        return false;\n    }\n\n    /**\n     * @dev Burns tokens from the sender's specified balance.\n     * @param _from The address to debit the tokens from.\n     * @param _amountLD The amount of tokens to send in local decimals.\n     * @param _minAmountLD The minimum amount to send in local decimals.\n     * @param _dstEid The destination chain ID.\n     * @return amountSentLD The amount sent in local decimals.\n     * @return amountReceivedLD The amount received in local decimals on the remote.\n     */\n    function _debit(\n        address _from,\n        uint256 _amountLD,\n        uint256 _minAmountLD,\n        uint32 _dstEid\n    ) internal virtual override returns (uint256 amountSentLD, uint256 amountReceivedLD) {\n        (amountSentLD, amountReceivedLD) = _debitView(_amountLD, _minAmountLD, _dstEid);\n\n        // @dev In NON-default OFT, amountSentLD could be 100, with a 10% fee, the amountReceivedLD amount is 90,\n        // therefore amountSentLD CAN differ from amountReceivedLD.\n\n        // @dev Default OFT burns on src.\n        _burn(_from, amountSentLD);\n    }\n\n    /**\n     * @dev Credits tokens to the specified address.\n     * @param _to The address to credit the tokens to.\n     * @param _amountLD The amount of tokens to credit in local decimals.\n     * @dev _srcEid The source chain ID.\n     * @return amountReceivedLD The amount of tokens ACTUALLY received in local decimals.\n     */\n    function _credit(\n        address _to,\n        uint256 _amountLD,\n        uint32 /*_srcEid*/\n    ) internal virtual override returns (uint256 amountReceivedLD) {\n        if (_to == address(0x0)) _to = address(0xdead); // _mint(...) does not support address(0x0)\n        // @dev Default OFT mints on dst.\n        _mint(_to, _amountLD);\n        // @dev In the case of NON-default OFT, the _amountLD MIGHT not be == amountReceivedLD.\n        return _amountLD;\n    }\n}\n"
        },
        "@layerzerolabs/oft-evm/contracts/OFTAdapter.sol": {
          "content": "// SPDX-License-Identifier: MIT\n\npragma solidity ^0.8.20;\n\nimport { IERC20Metadata, IERC20 } from \"@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol\";\nimport { SafeERC20 } from \"@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol\";\nimport { IOFT, OFTCore } from \"./OFTCore.sol\";\n\n/**\n * @title OFTAdapter Contract\n * @dev OFTAdapter is a contract that adapts an ERC-20 token to the OFT functionality.\n *\n * @dev For existing ERC20 tokens, this can be used to convert the token to crosschain compatibility.\n * @dev WARNING: ONLY 1 of these should exist for a given global mesh,\n * unless you make a NON-default implementation of OFT and needs to be done very carefully.\n * @dev WARNING: The default OFTAdapter implementation assumes LOSSLESS transfers, ie. 1 token in, 1 token out.\n * IF the 'innerToken' applies something like a transfer fee, the default will NOT work...\n * a pre/post balance check will need to be done to calculate the amountSentLD/amountReceivedLD.\n */\nabstract contract OFTAdapter is OFTCore {\n    using SafeERC20 for IERC20;\n\n    IERC20 internal immutable innerToken;\n\n    /**\n     * @dev Constructor for the OFTAdapter contract.\n     * @param _token The address of the ERC-20 token to be adapted.\n     * @param _lzEndpoint The LayerZero endpoint address.\n     * @param _delegate The delegate capable of making OApp configurations inside of the endpoint.\n     */\n    constructor(\n        address _token,\n        address _lzEndpoint,\n        address _delegate\n    ) OFTCore(IERC20Metadata(_token).decimals(), _lzEndpoint, _delegate) {\n        innerToken = IERC20(_token);\n    }\n\n    /**\n     * @dev Retrieves the address of the underlying ERC20 implementation.\n     * @return The address of the adapted ERC-20 token.\n     *\n     * @dev In the case of OFTAdapter, address(this) and erc20 are NOT the same contract.\n     */\n    function token() public view returns (address) {\n        return address(innerToken);\n    }\n\n    /**\n     * @notice Indicates whether the OFT contract requires approval of the 'token()' to send.\n     * @return requiresApproval Needs approval of the underlying token implementation.\n     *\n     * @dev In the case of default OFTAdapter, approval is required.\n     * @dev In non-default OFTAdapter contracts with something like mint and burn privileges, it would NOT need approval.\n     */\n    function approvalRequired() external pure virtual returns (bool) {\n        return true;\n    }\n\n    /**\n     * @dev Locks tokens from the sender's specified balance in this contract.\n     * @param _from The address to debit from.\n     * @param _amountLD The amount of tokens to send in local decimals.\n     * @param _minAmountLD The minimum amount to send in local decimals.\n     * @param _dstEid The destination chain ID.\n     * @return amountSentLD The amount sent in local decimals.\n     * @return amountReceivedLD The amount received in local decimals on the remote.\n     *\n     * @dev msg.sender will need to approve this _amountLD of tokens to be locked inside of the contract.\n     * @dev WARNING: The default OFTAdapter implementation assumes LOSSLESS transfers, ie. 1 token in, 1 token out.\n     * IF the 'innerToken' applies something like a transfer fee, the default will NOT work...\n     * a pre/post balance check will need to be done to calculate the amountReceivedLD.\n     */\n    function _debit(\n        address _from,\n        uint256 _amountLD,\n        uint256 _minAmountLD,\n        uint32 _dstEid\n    ) internal virtual override returns (uint256 amountSentLD, uint256 amountReceivedLD) {\n        (amountSentLD, amountReceivedLD) = _debitView(_amountLD, _minAmountLD, _dstEid);\n        // @dev Lock tokens by moving them into this contract from the caller.\n        innerToken.safeTransferFrom(_from, address(this), amountSentLD);\n    }\n\n    /**\n     * @dev Credits tokens to the specified address.\n     * @param _to The address to credit the tokens to.\n     * @param _amountLD The amount of tokens to credit in local decimals.\n     * @dev _srcEid The source chain ID.\n     * @return amountReceivedLD The amount of tokens ACTUALLY received in local decimals.\n     *\n     * @dev WARNING: The default OFTAdapter implementation assumes LOSSLESS transfers, ie. 1 token in, 1 token out.\n     * IF the 'innerToken' applies something like a transfer fee, the default will NOT work...\n     * a pre/post balance check will need to be done to calculate the amountReceivedLD.\n     */\n    function _credit(\n        address _to,\n        uint256 _amountLD,\n        uint32 /*_srcEid*/\n    ) internal virtual override returns (uint256 amountReceivedLD) {\n        // @dev Unlock the tokens and transfer to the recipient.\n        innerToken.safeTransfer(_to, _amountLD);\n        // @dev In the case of NON-default OFTAdapter, the amountLD MIGHT not be == amountReceivedLD.\n        return _amountLD;\n    }\n}\n"
        },
        "@layerzerolabs/oft-evm/contracts/OFTCore.sol": {
          "content": "// SPDX-License-Identifier: MIT\n\npragma solidity ^0.8.20;\n\nimport { IERC20 } from \"@openzeppelin/contracts/token/ERC20/IERC20.sol\";\n\nimport { OApp, Origin } from \"@layerzerolabs/oapp-evm/contracts/oapp/OApp.sol\";\nimport { OAppOptionsType3 } from \"@layerzerolabs/oapp-evm/contracts/oapp/libs/OAppOptionsType3.sol\";\nimport { IOAppMsgInspector } from \"@layerzerolabs/oapp-evm/contracts/oapp/interfaces/IOAppMsgInspector.sol\";\n\nimport { OAppPreCrimeSimulator } from \"@layerzerolabs/oapp-evm/contracts/precrime/OAppPreCrimeSimulator.sol\";\n\nimport { IOFT, SendParam, OFTLimit, OFTReceipt, OFTFeeDetail, MessagingReceipt, MessagingFee } from \"./interfaces/IOFT.sol\";\nimport { OFTMsgCodec } from \"./libs/OFTMsgCodec.sol\";\nimport { OFTComposeMsgCodec } from \"./libs/OFTComposeMsgCodec.sol\";\n\n/**\n * @title OFTCore\n * @dev Abstract contract for the OftChain (OFT) token.\n */\nabstract contract OFTCore is IOFT, OApp, OAppPreCrimeSimulator, OAppOptionsType3 {\n    using OFTMsgCodec for bytes;\n    using OFTMsgCodec for bytes32;\n\n    // @notice Provides a conversion rate when swapping between denominations of SD and LD\n    //      - shareDecimals == SD == shared Decimals\n    //      - localDecimals == LD == local decimals\n    // @dev Considers that tokens have different decimal amounts on various chains.\n    // @dev eg.\n    //  For a token\n    //      - locally with 4 decimals --> 1.2345 => uint(12345)\n    //      - remotely with 2 decimals --> 1.23 => uint(123)\n    //      - The conversion rate would be 10 ** (4 - 2) = 100\n    //  @dev If you want to send 1.2345 -> (uint 12345), you CANNOT represent that value on the remote,\n    //  you can only display 1.23 -> uint(123).\n    //  @dev To preserve the dust that would otherwise be lost on that conversion,\n    //  we need to unify a denomination that can be represented on ALL chains inside of the OFT mesh\n    uint256 public immutable decimalConversionRate;\n\n    // @notice Msg types that are used to identify the various OFT operations.\n    // @dev This can be extended in child contracts for non-default oft operations\n    // @dev These values are used in things like combineOptions() in OAppOptionsType3.sol.\n    uint16 public constant SEND = 1;\n    uint16 public constant SEND_AND_CALL = 2;\n\n    // Address of an optional contract to inspect both 'message' and 'options'\n    address public msgInspector;\n    event MsgInspectorSet(address inspector);\n\n    /**\n     * @dev Constructor.\n     * @param _localDecimals The decimals of the token on the local chain (this chain).\n     * @param _endpoint The address of the LayerZero endpoint.\n     * @param _delegate The delegate capable of making OApp configurations inside of the endpoint.\n     */\n    constructor(uint8 _localDecimals, address _endpoint, address _delegate) OApp(_endpoint, _delegate) {\n        if (_localDecimals < sharedDecimals()) revert InvalidLocalDecimals();\n        decimalConversionRate = 10 ** (_localDecimals - sharedDecimals());\n    }\n\n    /**\n     * @notice Retrieves interfaceID and the version of the OFT.\n     * @return interfaceId The interface ID.\n     * @return version The version.\n     *\n     * @dev interfaceId: This specific interface ID is '0x02e49c2c'.\n     * @dev version: Indicates a cross-chain compatible msg encoding with other OFTs.\n     * @dev If a new feature is added to the OFT cross-chain msg encoding, the version will be incremented.\n     * ie. localOFT version(x,1) CAN send messages to remoteOFT version(x,1)\n     */\n    function oftVersion() external pure virtual returns (bytes4 interfaceId, uint64 version) {\n        return (type(IOFT).interfaceId, 1);\n    }\n\n    /**\n     * @dev Retrieves the shared decimals of the OFT.\n     * @return The shared decimals of the OFT.\n     *\n     * @dev Sets an implicit cap on the amount of tokens, over uint64.max() will need some sort of outbound cap / totalSupply cap\n     * Lowest common decimal denominator between chains.\n     * Defaults to 6 decimal places to provide up to 18,446,744,073,709.551615 units (max uint64).\n     * For tokens exceeding this totalSupply(), they will need to override the sharedDecimals function with something smaller.\n     * ie. 4 sharedDecimals would be 1,844,674,407,370,955.1615\n     */\n    function sharedDecimals() public view virtual returns (uint8) {\n        return 6;\n    }\n\n    /**\n     * @dev Sets the message inspector address for the OFT.\n     * @param _msgInspector The address of the message inspector.\n     *\n     * @dev This is an optional contract that can be used to inspect both 'message' and 'options'.\n     * @dev Set it to address(0) to disable it, or set it to a contract address to enable it.\n     */\n    function setMsgInspector(address _msgInspector) public virtual onlyOwner {\n        msgInspector = _msgInspector;\n        emit MsgInspectorSet(_msgInspector);\n    }\n\n    /**\n     * @notice Provides the fee breakdown and settings data for an OFT. Unused in the default implementation.\n     * @param _sendParam The parameters for the send operation.\n     * @return oftLimit The OFT limit information.\n     * @return oftFeeDetails The details of OFT fees.\n     * @return oftReceipt The OFT receipt information.\n     */\n    function quoteOFT(\n        SendParam calldata _sendParam\n    )\n        external\n        view\n        virtual\n        returns (OFTLimit memory oftLimit, OFTFeeDetail[] memory oftFeeDetails, OFTReceipt memory oftReceipt)\n    {\n        uint256 minAmountLD = 0; // Unused in the default implementation.\n        uint256 maxAmountLD = IERC20(this.token()).totalSupply(); // Unused in the default implementation.\n        oftLimit = OFTLimit(minAmountLD, maxAmountLD);\n\n        // Unused in the default implementation; reserved for future complex fee details.\n        oftFeeDetails = new OFTFeeDetail[](0);\n\n        // @dev This is the same as the send() operation, but without the actual send.\n        // - amountSentLD is the amount in local decimals that would be sent from the sender.\n        // - amountReceivedLD is the amount in local decimals that will be credited to the recipient on the remote OFT instance.\n        // @dev The amountSentLD MIGHT not equal the amount the user actually receives. HOWEVER, the default does.\n        (uint256 amountSentLD, uint256 amountReceivedLD) = _debitView(\n            _sendParam.amountLD,\n            _sendParam.minAmountLD,\n            _sendParam.dstEid\n        );\n        oftReceipt = OFTReceipt(amountSentLD, amountReceivedLD);\n    }\n\n    /**\n     * @notice Provides a quote for the send() operation.\n     * @param _sendParam The parameters for the send() operation.\n     * @param _payInLzToken Flag indicating whether the caller is paying in the LZ token.\n     * @return msgFee The calculated LayerZero messaging fee from the send() operation.\n     *\n     * @dev MessagingFee: LayerZero msg fee\n     *  - nativeFee: The native fee.\n     *  - lzTokenFee: The lzToken fee.\n     */\n    function quoteSend(\n        SendParam calldata _sendParam,\n        bool _payInLzToken\n    ) external view virtual returns (MessagingFee memory msgFee) {\n        // @dev mock the amount to receive, this is the same operation used in the send().\n        // The quote is as similar as possible to the actual send() operation.\n        (, uint256 amountReceivedLD) = _debitView(_sendParam.amountLD, _sendParam.minAmountLD, _sendParam.dstEid);\n\n        // @dev Builds the options and OFT message to quote in the endpoint.\n        (bytes memory message, bytes memory options) = _buildMsgAndOptions(_sendParam, amountReceivedLD);\n\n        // @dev Calculates the LayerZero fee for the send() operation.\n        return _quote(_sendParam.dstEid, message, options, _payInLzToken);\n    }\n\n    /**\n     * @dev Executes the send operation.\n     * @param _sendParam The parameters for the send operation.\n     * @param _fee The calculated fee for the send() operation.\n     *      - nativeFee: The native fee.\n     *      - lzTokenFee: The lzToken fee.\n     * @param _refundAddress The address to receive any excess funds.\n     * @return msgReceipt The receipt for the send operation.\n     * @return oftReceipt The OFT receipt information.\n     *\n     * @dev MessagingReceipt: LayerZero msg receipt\n     *  - guid: The unique identifier for the sent message.\n     *  - nonce: The nonce of the sent message.\n     *  - fee: The LayerZero fee incurred for the message.\n     */\n    function send(\n        SendParam calldata _sendParam,\n        MessagingFee calldata _fee,\n        address _refundAddress\n    ) external payable virtual returns (MessagingReceipt memory msgReceipt, OFTReceipt memory oftReceipt) {\n        return _send(_sendParam, _fee, _refundAddress);\n    }\n\n    /**\n     * @dev Internal function to execute the send operation.\n     * @param _sendParam The parameters for the send operation.\n     * @param _fee The calculated fee for the send() operation.\n     *      - nativeFee: The native fee.\n     *      - lzTokenFee: The lzToken fee.\n     * @param _refundAddress The address to receive any excess funds.\n     * @return msgReceipt The receipt for the send operation.\n     * @return oftReceipt The OFT receipt information.\n     *\n     * @dev MessagingReceipt: LayerZero msg receipt\n     *  - guid: The unique identifier for the sent message.\n     *  - nonce: The nonce of the sent message.\n     *  - fee: The LayerZero fee incurred for the message.\n     */\n    function _send(\n        SendParam calldata _sendParam,\n        MessagingFee calldata _fee,\n        address _refundAddress\n    ) internal virtual returns (MessagingReceipt memory msgReceipt, OFTReceipt memory oftReceipt) {\n        // @dev Applies the token transfers regarding this send() operation.\n        // - amountSentLD is the amount in local decimals that was ACTUALLY sent/debited from the sender.\n        // - amountReceivedLD is the amount in local decimals that will be received/credited to the recipient on the remote OFT instance.\n        (uint256 amountSentLD, uint256 amountReceivedLD) = _debit(\n            msg.sender,\n            _sendParam.amountLD,\n            _sendParam.minAmountLD,\n            _sendParam.dstEid\n        );\n\n        // @dev Builds the options and OFT message to quote in the endpoint.\n        (bytes memory message, bytes memory options) = _buildMsgAndOptions(_sendParam, amountReceivedLD);\n\n        // @dev Sends the message to the LayerZero endpoint and returns the LayerZero msg receipt.\n        msgReceipt = _lzSend(_sendParam.dstEid, message, options, _fee, _refundAddress);\n        // @dev Formulate the OFT receipt.\n        oftReceipt = OFTReceipt(amountSentLD, amountReceivedLD);\n\n        emit OFTSent(msgReceipt.guid, _sendParam.dstEid, msg.sender, amountSentLD, amountReceivedLD);\n    }\n\n    /**\n     * @dev Internal function to build the message and options.\n     * @param _sendParam The parameters for the send() operation.\n     * @param _amountLD The amount in local decimals.\n     * @return message The encoded message.\n     * @return options The encoded options.\n     */\n    function _buildMsgAndOptions(\n        SendParam calldata _sendParam,\n        uint256 _amountLD\n    ) internal view virtual returns (bytes memory message, bytes memory options) {\n        bool hasCompose;\n        // @dev This generated message has the msg.sender encoded into the payload so the remote knows who the caller is.\n        (message, hasCompose) = OFTMsgCodec.encode(\n            _sendParam.to,\n            _toSD(_amountLD),\n            // @dev Must be include a non empty bytes if you want to compose, EVEN if you dont need it on the remote.\n            // EVEN if you dont require an arbitrary payload to be sent... eg. '0x01'\n            _sendParam.composeMsg\n        );\n        // @dev Change the msg type depending if its composed or not.\n        uint16 msgType = hasCompose ? SEND_AND_CALL : SEND;\n        // @dev Combine the callers _extraOptions with the enforced options via the OAppOptionsType3.\n        options = combineOptions(_sendParam.dstEid, msgType, _sendParam.extraOptions);\n\n        // @dev Optionally inspect the message and options depending if the OApp owner has set a msg inspector.\n        // @dev If it fails inspection, needs to revert in the implementation. ie. does not rely on return boolean\n        address inspector = msgInspector; // caches the msgInspector to avoid potential double storage read\n        if (inspector != address(0)) IOAppMsgInspector(inspector).inspect(message, options);\n    }\n\n    /**\n     * @dev Internal function to handle the receive on the LayerZero endpoint.\n     * @param _origin The origin information.\n     *  - srcEid: The source chain endpoint ID.\n     *  - sender: The sender address from the src chain.\n     *  - nonce: The nonce of the LayerZero message.\n     * @param _guid The unique identifier for the received LayerZero message.\n     * @param _message The encoded message.\n     * @dev _executor The address of the executor.\n     * @dev _extraData Additional data.\n     */\n    function _lzReceive(\n        Origin calldata _origin,\n        bytes32 _guid,\n        bytes calldata _message,\n        address /*_executor*/, // @dev unused in the default implementation.\n        bytes calldata /*_extraData*/ // @dev unused in the default implementation.\n    ) internal virtual override {\n        // @dev The src sending chain doesnt know the address length on this chain (potentially non-evm)\n        // Thus everything is bytes32() encoded in flight.\n        address toAddress = _message.sendTo().bytes32ToAddress();\n        // @dev Credit the amountLD to the recipient and return the ACTUAL amount the recipient received in local decimals\n        uint256 amountReceivedLD = _credit(toAddress, _toLD(_message.amountSD()), _origin.srcEid);\n\n        if (_message.isComposed()) {\n            // @dev Proprietary composeMsg format for the OFT.\n            bytes memory composeMsg = OFTComposeMsgCodec.encode(\n                _origin.nonce,\n                _origin.srcEid,\n                amountReceivedLD,\n                _message.composeMsg()\n            );\n\n            // @dev Stores the lzCompose payload that will be executed in a separate tx.\n            // Standardizes functionality for executing arbitrary contract invocation on some non-evm chains.\n            // @dev The off-chain executor will listen and process the msg based on the src-chain-callers compose options passed.\n            // @dev The index is used when a OApp needs to compose multiple msgs on lzReceive.\n            // For default OFT implementation there is only 1 compose msg per lzReceive, thus its always 0.\n            endpoint.sendCompose(toAddress, _guid, 0 /* the index of the composed message*/, composeMsg);\n        }\n\n        emit OFTReceived(_guid, _origin.srcEid, toAddress, amountReceivedLD);\n    }\n\n    /**\n     * @dev Internal function to handle the OAppPreCrimeSimulator simulated receive.\n     * @param _origin The origin information.\n     *  - srcEid: The source chain endpoint ID.\n     *  - sender: The sender address from the src chain.\n     *  - nonce: The nonce of the LayerZero message.\n     * @param _guid The unique identifier for the received LayerZero message.\n     * @param _message The LayerZero message.\n     * @param _executor The address of the off-chain executor.\n     * @param _extraData Arbitrary data passed by the msg executor.\n     *\n     * @dev Enables the preCrime simulator to mock sending lzReceive() messages,\n     * routes the msg down from the OAppPreCrimeSimulator, and back up to the OAppReceiver.\n     */\n    function _lzReceiveSimulate(\n        Origin calldata _origin,\n        bytes32 _guid,\n        bytes calldata _message,\n        address _executor,\n        bytes calldata _extraData\n    ) internal virtual override {\n        _lzReceive(_origin, _guid, _message, _executor, _extraData);\n    }\n\n    /**\n     * @dev Check if the peer is considered 'trusted' by the OApp.\n     * @param _eid The endpoint ID to check.\n     * @param _peer The peer to check.\n     * @return Whether the peer passed is considered 'trusted' by the OApp.\n     *\n     * @dev Enables OAppPreCrimeSimulator to check whether a potential Inbound Packet is from a trusted source.\n     */\n    function isPeer(uint32 _eid, bytes32 _peer) public view virtual override returns (bool) {\n        return peers[_eid] == _peer;\n    }\n\n    /**\n     * @dev Internal function to remove dust from the given local decimal amount.\n     * @param _amountLD The amount in local decimals.\n     * @return amountLD The amount after removing dust.\n     *\n     * @dev Prevents the loss of dust when moving amounts between chains with different decimals.\n     * @dev eg. uint(123) with a conversion rate of 100 becomes uint(100).\n     */\n    function _removeDust(uint256 _amountLD) internal view virtual returns (uint256 amountLD) {\n        return (_amountLD / decimalConversionRate) * decimalConversionRate;\n    }\n\n    /**\n     * @dev Internal function to convert an amount from shared decimals into local decimals.\n     * @param _amountSD The amount in shared decimals.\n     * @return amountLD The amount in local decimals.\n     */\n    function _toLD(uint64 _amountSD) internal view virtual returns (uint256 amountLD) {\n        return _amountSD * decimalConversionRate;\n    }\n\n    /**\n     * @dev Internal function to convert an amount from local decimals into shared decimals.\n     * @param _amountLD The amount in local decimals.\n     * @return amountSD The amount in shared decimals.\n     *\n     * @dev Reverts if the _amountLD in shared decimals overflows uint64.\n     * @dev eg. uint(2**64 + 123) with a conversion rate of 1 wraps around 2**64 to uint(123).\n     */\n    function _toSD(uint256 _amountLD) internal view virtual returns (uint64 amountSD) {\n        uint256 _amountSD = _amountLD / decimalConversionRate;\n        if (_amountSD > type(uint64).max) revert AmountSDOverflowed(_amountSD);\n        return uint64(_amountSD);\n    }\n\n    /**\n     * @dev Internal function to mock the amount mutation from a OFT debit() operation.\n     * @param _amountLD The amount to send in local decimals.\n     * @param _minAmountLD The minimum amount to send in local decimals.\n     * @dev _dstEid The destination endpoint ID.\n     * @return amountSentLD The amount sent, in local decimals.\n     * @return amountReceivedLD The amount to be received on the remote chain, in local decimals.\n     *\n     * @dev This is where things like fees would be calculated and deducted from the amount to be received on the remote.\n     */\n    function _debitView(\n        uint256 _amountLD,\n        uint256 _minAmountLD,\n        uint32 /*_dstEid*/\n    ) internal view virtual returns (uint256 amountSentLD, uint256 amountReceivedLD) {\n        // @dev Remove the dust so nothing is lost on the conversion between chains with different decimals for the token.\n        amountSentLD = _removeDust(_amountLD);\n        // @dev The amount to send is the same as amount received in the default implementation.\n        amountReceivedLD = amountSentLD;\n\n        // @dev Check for slippage.\n        if (amountReceivedLD < _minAmountLD) {\n            revert SlippageExceeded(amountReceivedLD, _minAmountLD);\n        }\n    }\n\n    /**\n     * @dev Internal function to perform a debit operation.\n     * @param _from The address to debit.\n     * @param _amountLD The amount to send in local decimals.\n     * @param _minAmountLD The minimum amount to send in local decimals.\n     * @param _dstEid The destination endpoint ID.\n     * @return amountSentLD The amount sent in local decimals.\n     * @return amountReceivedLD The amount received in local decimals on the remote.\n     *\n     * @dev Defined here but are intended to be overriden depending on the OFT implementation.\n     * @dev Depending on OFT implementation the _amountLD could differ from the amountReceivedLD.\n     */\n    function _debit(\n        address _from,\n        uint256 _amountLD,\n        uint256 _minAmountLD,\n        uint32 _dstEid\n    ) internal virtual returns (uint256 amountSentLD, uint256 amountReceivedLD);\n\n    /**\n     * @dev Internal function to perform a credit operation.\n     * @param _to The address to credit.\n     * @param _amountLD The amount to credit in local decimals.\n     * @param _srcEid The source endpoint ID.\n     * @return amountReceivedLD The amount ACTUALLY received in local decimals.\n     *\n     * @dev Defined here but are intended to be overriden depending on the OFT implementation.\n     * @dev Depending on OFT implementation the _amountLD could differ from the amountReceivedLD.\n     */\n    function _credit(\n        address _to,\n        uint256 _amountLD,\n        uint32 _srcEid\n    ) internal virtual returns (uint256 amountReceivedLD);\n}\n"
        },
        "@openzeppelin/contracts/access/AccessControl.sol": {
          "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (access/AccessControl.sol)\n\npragma solidity ^0.8.0;\n\nimport \"./IAccessControl.sol\";\nimport \"../utils/Context.sol\";\nimport \"../utils/Strings.sol\";\nimport \"../utils/introspection/ERC165.sol\";\n\n/**\n * @dev Contract module that allows children to implement role-based access\n * control mechanisms. This is a lightweight version that doesn't allow enumerating role\n * members except through off-chain means by accessing the contract event logs. Some\n * applications may benefit from on-chain enumerability, for those cases see\n * {AccessControlEnumerable}.\n *\n * Roles are referred to by their `bytes32` identifier. These should be exposed\n * in the external API and be unique. The best way to achieve this is by\n * using `public constant` hash digests:\n *\n * ```solidity\n * bytes32 public constant MY_ROLE = keccak256(\"MY_ROLE\");\n * ```\n *\n * Roles can be used to represent a set of permissions. To restrict access to a\n * function call, use {hasRole}:\n *\n * ```solidity\n * function foo() public {\n *     require(hasRole(MY_ROLE, msg.sender));\n *     ...\n * }\n * ```\n *\n * Roles can be granted and revoked dynamically via the {grantRole} and\n * {revokeRole} functions. Each role has an associated admin role, and only\n * accounts that have a role's admin role can call {grantRole} and {revokeRole}.\n *\n * By default, the admin role for all roles is `DEFAULT_ADMIN_ROLE`, which means\n * that only accounts with this role will be able to grant or revoke other\n * roles. More complex role relationships can be created by using\n * {_setRoleAdmin}.\n *\n * WARNING: The `DEFAULT_ADMIN_ROLE` is also its own admin: it has permission to\n * grant and revoke this role. Extra precautions should be taken to secure\n * accounts that have been granted it. We recommend using {AccessControlDefaultAdminRules}\n * to enforce additional security measures for this role.\n */\nabstract contract AccessControl is Context, IAccessControl, ERC165 {\n    struct RoleData {\n        mapping(address => bool) members;\n        bytes32 adminRole;\n    }\n\n    mapping(bytes32 => RoleData) private _roles;\n\n    bytes32 public constant DEFAULT_ADMIN_ROLE = 0x00;\n\n    /**\n     * @dev Modifier that checks that an account has a specific role. Reverts\n     * with a standardized message including the required role.\n     *\n     * The format of the revert reason is given by the following regular expression:\n     *\n     *  /^AccessControl: account (0x[0-9a-f]{40}) is missing role (0x[0-9a-f]{64})$/\n     *\n     * _Available since v4.1._\n     */\n    modifier onlyRole(bytes32 role) {\n        _checkRole(role);\n        _;\n    }\n\n    /**\n     * @dev See {IERC165-supportsInterface}.\n     */\n    function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {\n        return interfaceId == type(IAccessControl).interfaceId || super.supportsInterface(interfaceId);\n    }\n\n    /**\n     * @dev Returns `true` if `account` has been granted `role`.\n     */\n    function hasRole(bytes32 role, address account) public view virtual override returns (bool) {\n        return _roles[role].members[account];\n    }\n\n    /**\n     * @dev Revert with a standard message if `_msgSender()` is missing `role`.\n     * Overriding this function changes the behavior of the {onlyRole} modifier.\n     *\n     * Format of the revert message is described in {_checkRole}.\n     *\n     * _Available since v4.6._\n     */\n    function _checkRole(bytes32 role) internal view virtual {\n        _checkRole(role, _msgSender());\n    }\n\n    /**\n     * @dev Revert with a standard message if `account` is missing `role`.\n     *\n     * The format of the revert reason is given by the following regular expression:\n     *\n     *  /^AccessControl: account (0x[0-9a-f]{40}) is missing role (0x[0-9a-f]{64})$/\n     */\n    function _checkRole(bytes32 role, address account) internal view virtual {\n        if (!hasRole(role, account)) {\n            revert(\n                string(\n                    abi.encodePacked(\n                        \"AccessControl: account \",\n                        Strings.toHexString(account),\n                        \" is missing role \",\n                        Strings.toHexString(uint256(role), 32)\n                    )\n                )\n            );\n        }\n    }\n\n    /**\n     * @dev Returns the admin role that controls `role`. See {grantRole} and\n     * {revokeRole}.\n     *\n     * To change a role's admin, use {_setRoleAdmin}.\n     */\n    function getRoleAdmin(bytes32 role) public view virtual override returns (bytes32) {\n        return _roles[role].adminRole;\n    }\n\n    /**\n     * @dev Grants `role` to `account`.\n     *\n     * If `account` had not been already granted `role`, emits a {RoleGranted}\n     * event.\n     *\n     * Requirements:\n     *\n     * - the caller must have ``role``'s admin role.\n     *\n     * May emit a {RoleGranted} event.\n     */\n    function grantRole(bytes32 role, address account) public virtual override onlyRole(getRoleAdmin(role)) {\n        _grantRole(role, account);\n    }\n\n    /**\n     * @dev Revokes `role` from `account`.\n     *\n     * If `account` had been granted `role`, emits a {RoleRevoked} event.\n     *\n     * Requirements:\n     *\n     * - the caller must have ``role``'s admin role.\n     *\n     * May emit a {RoleRevoked} event.\n     */\n    function revokeRole(bytes32 role, address account) public virtual override onlyRole(getRoleAdmin(role)) {\n        _revokeRole(role, account);\n    }\n\n    /**\n     * @dev Revokes `role` from the calling account.\n     *\n     * Roles are often managed via {grantRole} and {revokeRole}: this function's\n     * purpose is to provide a mechanism for accounts to lose their privileges\n     * if they are compromised (such as when a trusted device is misplaced).\n     *\n     * If the calling account had been revoked `role`, emits a {RoleRevoked}\n     * event.\n     *\n     * Requirements:\n     *\n     * - the caller must be `account`.\n     *\n     * May emit a {RoleRevoked} event.\n     */\n    function renounceRole(bytes32 role, address account) public virtual override {\n        require(account == _msgSender(), \"AccessControl: can only renounce roles for self\");\n\n        _revokeRole(role, account);\n    }\n\n    /**\n     * @dev Grants `role` to `account`.\n     *\n     * If `account` had not been already granted `role`, emits a {RoleGranted}\n     * event. Note that unlike {grantRole}, this function doesn't perform any\n     * checks on the calling account.\n     *\n     * May emit a {RoleGranted} event.\n     *\n     * [WARNING]\n     * ====\n     * This function should only be called from the constructor when setting\n     * up the initial roles for the system.\n     *\n     * Using this function in any other way is effectively circumventing the admin\n     * system imposed by {AccessControl}.\n     * ====\n     *\n     * NOTE: This function is deprecated in favor of {_grantRole}.\n     */\n    function _setupRole(bytes32 role, address account) internal virtual {\n        _grantRole(role, account);\n    }\n\n    /**\n     * @dev Sets `adminRole` as ``role``'s admin role.\n     *\n     * Emits a {RoleAdminChanged} event.\n     */\n    function _setRoleAdmin(bytes32 role, bytes32 adminRole) internal virtual {\n        bytes32 previousAdminRole = getRoleAdmin(role);\n        _roles[role].adminRole = adminRole;\n        emit RoleAdminChanged(role, previousAdminRole, adminRole);\n    }\n\n    /**\n     * @dev Grants `role` to `account`.\n     *\n     * Internal function without access restriction.\n     *\n     * May emit a {RoleGranted} event.\n     */\n    function _grantRole(bytes32 role, address account) internal virtual {\n        if (!hasRole(role, account)) {\n            _roles[role].members[account] = true;\n            emit RoleGranted(role, account, _msgSender());\n        }\n    }\n\n    /**\n     * @dev Revokes `role` from `account`.\n     *\n     * Internal function without access restriction.\n     *\n     * May emit a {RoleRevoked} event.\n     */\n    function _revokeRole(bytes32 role, address account) internal virtual {\n        if (hasRole(role, account)) {\n            _roles[role].members[account] = false;\n            emit RoleRevoked(role, account, _msgSender());\n        }\n    }\n}\n"
        },
        "@openzeppelin/contracts/access/IAccessControl.sol": {
          "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (access/IAccessControl.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev External interface of AccessControl declared to support ERC165 detection.\n */\ninterface IAccessControl {\n    /**\n     * @dev Emitted when `newAdminRole` is set as ``role``'s admin role, replacing `previousAdminRole`\n     *\n     * `DEFAULT_ADMIN_ROLE` is the starting admin for all roles, despite\n     * {RoleAdminChanged} not being emitted signaling this.\n     *\n     * _Available since v3.1._\n     */\n    event RoleAdminChanged(bytes32 indexed role, bytes32 indexed previousAdminRole, bytes32 indexed newAdminRole);\n\n    /**\n     * @dev Emitted when `account` is granted `role`.\n     *\n     * `sender` is the account that originated the contract call, an admin role\n     * bearer except when using {AccessControl-_setupRole}.\n     */\n    event RoleGranted(bytes32 indexed role, address indexed account, address indexed sender);\n\n    /**\n     * @dev Emitted when `account` is revoked `role`.\n     *\n     * `sender` is the account that originated the contract call:\n     *   - if using `revokeRole`, it is the admin role bearer\n     *   - if using `renounceRole`, it is the role bearer (i.e. `account`)\n     */\n    event RoleRevoked(bytes32 indexed role, address indexed account, address indexed sender);\n\n    /**\n     * @dev Returns `true` if `account` has been granted `role`.\n     */\n    function hasRole(bytes32 role, address account) external view returns (bool);\n\n    /**\n     * @dev Returns the admin role that controls `role`. See {grantRole} and\n     * {revokeRole}.\n     *\n     * To change a role's admin, use {AccessControl-_setRoleAdmin}.\n     */\n    function getRoleAdmin(bytes32 role) external view returns (bytes32);\n\n    /**\n     * @dev Grants `role` to `account`.\n     *\n     * If `account` had not been already granted `role`, emits a {RoleGranted}\n     * event.\n     *\n     * Requirements:\n     *\n     * - the caller must have ``role``'s admin role.\n     */\n    function grantRole(bytes32 role, address account) external;\n\n    /**\n     * @dev Revokes `role` from `account`.\n     *\n     * If `account` had been granted `role`, emits a {RoleRevoked} event.\n     *\n     * Requirements:\n     *\n     * - the caller must have ``role``'s admin role.\n     */\n    function revokeRole(bytes32 role, address account) external;\n\n    /**\n     * @dev Revokes `role` from the calling account.\n     *\n     * Roles are often managed via {grantRole} and {revokeRole}: this function's\n     * purpose is to provide a mechanism for accounts to lose their privileges\n     * if they are compromised (such as when a trusted device is misplaced).\n     *\n     * If the calling account had been granted `role`, emits a {RoleRevoked}\n     * event.\n     *\n     * Requirements:\n     *\n     * - the caller must be `account`.\n     */\n    function renounceRole(bytes32 role, address account) external;\n}\n"
        },
        "@openzeppelin/contracts/access/Ownable.sol": {
          "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (access/Ownable.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../utils/Context.sol\";\n\n/**\n * @dev Contract module which provides a basic access control mechanism, where\n * there is an account (an owner) that can be granted exclusive access to\n * specific functions.\n *\n * By default, the owner account will be the one that deploys the contract. This\n * can later be changed with {transferOwnership}.\n *\n * This module is used through inheritance. It will make available the modifier\n * `onlyOwner`, which can be applied to your functions to restrict their use to\n * the owner.\n */\nabstract contract Ownable is Context {\n    address private _owner;\n\n    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);\n\n    /**\n     * @dev Initializes the contract setting the deployer as the initial owner.\n     */\n    constructor() {\n        _transferOwnership(_msgSender());\n    }\n\n    /**\n     * @dev Throws if called by any account other than the owner.\n     */\n    modifier onlyOwner() {\n        _checkOwner();\n        _;\n    }\n\n    /**\n     * @dev Returns the address of the current owner.\n     */\n    function owner() public view virtual returns (address) {\n        return _owner;\n    }\n\n    /**\n     * @dev Throws if the sender is not the owner.\n     */\n    function _checkOwner() internal view virtual {\n        require(owner() == _msgSender(), \"Ownable: caller is not the owner\");\n    }\n\n    /**\n     * @dev Leaves the contract without owner. It will not be possible to call\n     * `onlyOwner` functions. Can only be called by the current owner.\n     *\n     * NOTE: Renouncing ownership will leave the contract without an owner,\n     * thereby disabling any functionality that is only available to the owner.\n     */\n    function renounceOwnership() public virtual onlyOwner {\n        _transferOwnership(address(0));\n    }\n\n    /**\n     * @dev Transfers ownership of the contract to a new account (`newOwner`).\n     * Can only be called by the current owner.\n     */\n    function transferOwnership(address newOwner) public virtual onlyOwner {\n        require(newOwner != address(0), \"Ownable: new owner is the zero address\");\n        _transferOwnership(newOwner);\n    }\n\n    /**\n     * @dev Transfers ownership of the contract to a new account (`newOwner`).\n     * Internal function without access restriction.\n     */\n    function _transferOwnership(address newOwner) internal virtual {\n        address oldOwner = _owner;\n        _owner = newOwner;\n        emit OwnershipTransferred(oldOwner, newOwner);\n    }\n}\n"
        },
        "@openzeppelin/contracts/access/Ownable2Step.sol": {
          "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (access/Ownable2Step.sol)\n\npragma solidity ^0.8.0;\n\nimport \"./Ownable.sol\";\n\n/**\n * @dev Contract module which provides access control mechanism, where\n * there is an account (an owner) that can be granted exclusive access to\n * specific functions.\n *\n * By default, the owner account will be the one that deploys the contract. This\n * can later be changed with {transferOwnership} and {acceptOwnership}.\n *\n * This module is used through inheritance. It will make available all functions\n * from parent (Ownable).\n */\nabstract contract Ownable2Step is Ownable {\n    address private _pendingOwner;\n\n    event OwnershipTransferStarted(address indexed previousOwner, address indexed newOwner);\n\n    /**\n     * @dev Returns the address of the pending owner.\n     */\n    function pendingOwner() public view virtual returns (address) {\n        return _pendingOwner;\n    }\n\n    /**\n     * @dev Starts the ownership transfer of the contract to a new account. Replaces the pending transfer if there is one.\n     * Can only be called by the current owner.\n     */\n    function transferOwnership(address newOwner) public virtual override onlyOwner {\n        _pendingOwner = newOwner;\n        emit OwnershipTransferStarted(owner(), newOwner);\n    }\n\n    /**\n     * @dev Transfers ownership of the contract to a new account (`newOwner`) and deletes any pending owner.\n     * Internal function without access restriction.\n     */\n    function _transferOwnership(address newOwner) internal virtual override {\n        delete _pendingOwner;\n        super._transferOwnership(newOwner);\n    }\n\n    /**\n     * @dev The new owner accepts the ownership transfer.\n     */\n    function acceptOwnership() public virtual {\n        address sender = _msgSender();\n        require(pendingOwner() == sender, \"Ownable2Step: caller is not the new owner\");\n        _transferOwnership(sender);\n    }\n}\n"
        },
        "@openzeppelin/contracts/interfaces/IERC1271.sol": {
          "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (interfaces/IERC1271.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Interface of the ERC1271 standard signature validation method for\n * contracts as defined in https://eips.ethereum.org/EIPS/eip-1271[ERC-1271].\n *\n * _Available since v4.1._\n */\ninterface IERC1271 {\n    /**\n     * @dev Should return whether the signature provided is valid for the provided data\n     * @param hash      Hash of the data to be signed\n     * @param signature Signature byte array associated with _data\n     */\n    function isValidSignature(bytes32 hash, bytes memory signature) external view returns (bytes4 magicValue);\n}\n"
        },
        "@openzeppelin/contracts/interfaces/IERC5267.sol": {
          "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (interfaces/IERC5267.sol)\n\npragma solidity ^0.8.0;\n\ninterface IERC5267 {\n    /**\n     * @dev MAY be emitted to signal that the domain could have changed.\n     */\n    event EIP712DomainChanged();\n\n    /**\n     * @dev returns the fields and values that describe the domain separator used by this contract for EIP-712\n     * signature.\n     */\n    function eip712Domain()\n        external\n        view\n        returns (\n            bytes1 fields,\n            string memory name,\n            string memory version,\n            uint256 chainId,\n            address verifyingContract,\n            bytes32 salt,\n            uint256[] memory extensions\n        );\n}\n"
        },
        "@openzeppelin/contracts/security/ReentrancyGuard.sol": {
          "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (security/ReentrancyGuard.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Contract module that helps prevent reentrant calls to a function.\n *\n * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier\n * available, which can be applied to functions to make sure there are no nested\n * (reentrant) calls to them.\n *\n * Note that because there is a single `nonReentrant` guard, functions marked as\n * `nonReentrant` may not call one another. This can be worked around by making\n * those functions `private`, and then adding `external` `nonReentrant` entry\n * points to them.\n *\n * TIP: If you would like to learn more about reentrancy and alternative ways\n * to protect against it, check out our blog post\n * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].\n */\nabstract contract ReentrancyGuard {\n    // Booleans are more expensive than uint256 or any type that takes up a full\n    // word because each write operation emits an extra SLOAD to first read the\n    // slot's contents, replace the bits taken up by the boolean, and then write\n    // back. This is the compiler's defense against contract upgrades and\n    // pointer aliasing, and it cannot be disabled.\n\n    // The values being non-zero value makes deployment a bit more expensive,\n    // but in exchange the refund on every call to nonReentrant will be lower in\n    // amount. Since refunds are capped to a percentage of the total\n    // transaction's gas, it is best to keep them low in cases like this one, to\n    // increase the likelihood of the full refund coming into effect.\n    uint256 private constant _NOT_ENTERED = 1;\n    uint256 private constant _ENTERED = 2;\n\n    uint256 private _status;\n\n    constructor() {\n        _status = _NOT_ENTERED;\n    }\n\n    /**\n     * @dev Prevents a contract from calling itself, directly or indirectly.\n     * Calling a `nonReentrant` function from another `nonReentrant`\n     * function is not supported. It is possible to prevent this from happening\n     * by making the `nonReentrant` function external, and making it call a\n     * `private` function that does the actual work.\n     */\n    modifier nonReentrant() {\n        _nonReentrantBefore();\n        _;\n        _nonReentrantAfter();\n    }\n\n    function _nonReentrantBefore() private {\n        // On the first call to nonReentrant, _status will be _NOT_ENTERED\n        require(_status != _ENTERED, \"ReentrancyGuard: reentrant call\");\n\n        // Any calls to nonReentrant after this point will fail\n        _status = _ENTERED;\n    }\n\n    function _nonReentrantAfter() private {\n        // By storing the original value once again, a refund is triggered (see\n        // https://eips.ethereum.org/EIPS/eip-2200)\n        _status = _NOT_ENTERED;\n    }\n\n    /**\n     * @dev Returns true if the reentrancy guard is currently set to \"entered\", which indicates there is a\n     * `nonReentrant` function in the call stack.\n     */\n    function _reentrancyGuardEntered() internal view returns (bool) {\n        return _status == _ENTERED;\n    }\n}\n"
        },
        "@openzeppelin/contracts/token/ERC20/ERC20.sol": {
          "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/ERC20.sol)\n\npragma solidity ^0.8.0;\n\nimport \"./IERC20.sol\";\nimport \"./extensions/IERC20Metadata.sol\";\nimport \"../../utils/Context.sol\";\n\n/**\n * @dev Implementation of the {IERC20} interface.\n *\n * This implementation is agnostic to the way tokens are created. This means\n * that a supply mechanism has to be added in a derived contract using {_mint}.\n * For a generic mechanism see {ERC20PresetMinterPauser}.\n *\n * TIP: For a detailed writeup see our guide\n * https://forum.openzeppelin.com/t/how-to-implement-erc20-supply-mechanisms/226[How\n * to implement supply mechanisms].\n *\n * The default value of {decimals} is 18. To change this, you should override\n * this function so it returns a different value.\n *\n * We have followed general OpenZeppelin Contracts guidelines: functions revert\n * instead returning `false` on failure. This behavior is nonetheless\n * conventional and does not conflict with the expectations of ERC20\n * applications.\n *\n * Additionally, an {Approval} event is emitted on calls to {transferFrom}.\n * This allows applications to reconstruct the allowance for all accounts just\n * by listening to said events. Other implementations of the EIP may not emit\n * these events, as it isn't required by the specification.\n *\n * Finally, the non-standard {decreaseAllowance} and {increaseAllowance}\n * functions have been added to mitigate the well-known issues around setting\n * allowances. See {IERC20-approve}.\n */\ncontract ERC20 is Context, IERC20, IERC20Metadata {\n    mapping(address => uint256) private _balances;\n\n    mapping(address => mapping(address => uint256)) private _allowances;\n\n    uint256 private _totalSupply;\n\n    string private _name;\n    string private _symbol;\n\n    /**\n     * @dev Sets the values for {name} and {symbol}.\n     *\n     * All two of these values are immutable: they can only be set once during\n     * construction.\n     */\n    constructor(string memory name_, string memory symbol_) {\n        _name = name_;\n        _symbol = symbol_;\n    }\n\n    /**\n     * @dev Returns the name of the token.\n     */\n    function name() public view virtual override returns (string memory) {\n        return _name;\n    }\n\n    /**\n     * @dev Returns the symbol of the token, usually a shorter version of the\n     * name.\n     */\n    function symbol() public view virtual override returns (string memory) {\n        return _symbol;\n    }\n\n    /**\n     * @dev Returns the number of decimals used to get its user representation.\n     * For example, if `decimals` equals `2`, a balance of `505` tokens should\n     * be displayed to a user as `5.05` (`505 / 10 ** 2`).\n     *\n     * Tokens usually opt for a value of 18, imitating the relationship between\n     * Ether and Wei. This is the default value returned by this function, unless\n     * it's overridden.\n     *\n     * NOTE: This information is only used for _display_ purposes: it in\n     * no way affects any of the arithmetic of the contract, including\n     * {IERC20-balanceOf} and {IERC20-transfer}.\n     */\n    function decimals() public view virtual override returns (uint8) {\n        return 18;\n    }\n\n    /**\n     * @dev See {IERC20-totalSupply}.\n     */\n    function totalSupply() public view virtual override returns (uint256) {\n        return _totalSupply;\n    }\n\n    /**\n     * @dev See {IERC20-balanceOf}.\n     */\n    function balanceOf(address account) public view virtual override returns (uint256) {\n        return _balances[account];\n    }\n\n    /**\n     * @dev See {IERC20-transfer}.\n     *\n     * Requirements:\n     *\n     * - `to` cannot be the zero address.\n     * - the caller must have a balance of at least `amount`.\n     */\n    function transfer(address to, uint256 amount) public virtual override returns (bool) {\n        address owner = _msgSender();\n        _transfer(owner, to, amount);\n        return true;\n    }\n\n    /**\n     * @dev See {IERC20-allowance}.\n     */\n    function allowance(address owner, address spender) public view virtual override returns (uint256) {\n        return _allowances[owner][spender];\n    }\n\n    /**\n     * @dev See {IERC20-approve}.\n     *\n     * NOTE: If `amount` is the maximum `uint256`, the allowance is not updated on\n     * `transferFrom`. This is semantically equivalent to an infinite approval.\n     *\n     * Requirements:\n     *\n     * - `spender` cannot be the zero address.\n     */\n    function approve(address spender, uint256 amount) public virtual override returns (bool) {\n        address owner = _msgSender();\n        _approve(owner, spender, amount);\n        return true;\n    }\n\n    /**\n     * @dev See {IERC20-transferFrom}.\n     *\n     * Emits an {Approval} event indicating the updated allowance. This is not\n     * required by the EIP. See the note at the beginning of {ERC20}.\n     *\n     * NOTE: Does not update the allowance if the current allowance\n     * is the maximum `uint256`.\n     *\n     * Requirements:\n     *\n     * - `from` and `to` cannot be the zero address.\n     * - `from` must have a balance of at least `amount`.\n     * - the caller must have allowance for ``from``'s tokens of at least\n     * `amount`.\n     */\n    function transferFrom(address from, address to, uint256 amount) public virtual override returns (bool) {\n        address spender = _msgSender();\n        _spendAllowance(from, spender, amount);\n        _transfer(from, to, amount);\n        return true;\n    }\n\n    /**\n     * @dev Atomically increases the allowance granted to `spender` by the caller.\n     *\n     * This is an alternative to {approve} that can be used as a mitigation for\n     * problems described in {IERC20-approve}.\n     *\n     * Emits an {Approval} event indicating the updated allowance.\n     *\n     * Requirements:\n     *\n     * - `spender` cannot be the zero address.\n     */\n    function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {\n        address owner = _msgSender();\n        _approve(owner, spender, allowance(owner, spender) + addedValue);\n        return true;\n    }\n\n    /**\n     * @dev Atomically decreases the allowance granted to `spender` by the caller.\n     *\n     * This is an alternative to {approve} that can be used as a mitigation for\n     * problems described in {IERC20-approve}.\n     *\n     * Emits an {Approval} event indicating the updated allowance.\n     *\n     * Requirements:\n     *\n     * - `spender` cannot be the zero address.\n     * - `spender` must have allowance for the caller of at least\n     * `subtractedValue`.\n     */\n    function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {\n        address owner = _msgSender();\n        uint256 currentAllowance = allowance(owner, spender);\n        require(currentAllowance >= subtractedValue, \"ERC20: decreased allowance below zero\");\n        unchecked {\n            _approve(owner, spender, currentAllowance - subtractedValue);\n        }\n\n        return true;\n    }\n\n    /**\n     * @dev Moves `amount` of tokens from `from` to `to`.\n     *\n     * This internal function is equivalent to {transfer}, and can be used to\n     * e.g. implement automatic token fees, slashing mechanisms, etc.\n     *\n     * Emits a {Transfer} event.\n     *\n     * Requirements:\n     *\n     * - `from` cannot be the zero address.\n     * - `to` cannot be the zero address.\n     * - `from` must have a balance of at least `amount`.\n     */\n    function _transfer(address from, address to, uint256 amount) internal virtual {\n        require(from != address(0), \"ERC20: transfer from the zero address\");\n        require(to != address(0), \"ERC20: transfer to the zero address\");\n\n        _beforeTokenTransfer(from, to, amount);\n\n        uint256 fromBalance = _balances[from];\n        require(fromBalance >= amount, \"ERC20: transfer amount exceeds balance\");\n        unchecked {\n            _balances[from] = fromBalance - amount;\n            // Overflow not possible: the sum of all balances is capped by totalSupply, and the sum is preserved by\n            // decrementing then incrementing.\n            _balances[to] += amount;\n        }\n\n        emit Transfer(from, to, amount);\n\n        _afterTokenTransfer(from, to, amount);\n    }\n\n    /** @dev Creates `amount` tokens and assigns them to `account`, increasing\n     * the total supply.\n     *\n     * Emits a {Transfer} event with `from` set to the zero address.\n     *\n     * Requirements:\n     *\n     * - `account` cannot be the zero address.\n     */\n    function _mint(address account, uint256 amount) internal virtual {\n        require(account != address(0), \"ERC20: mint to the zero address\");\n\n        _beforeTokenTransfer(address(0), account, amount);\n\n        _totalSupply += amount;\n        unchecked {\n            // Overflow not possible: balance + amount is at most totalSupply + amount, which is checked above.\n            _balances[account] += amount;\n        }\n        emit Transfer(address(0), account, amount);\n\n        _afterTokenTransfer(address(0), account, amount);\n    }\n\n    /**\n     * @dev Destroys `amount` tokens from `account`, reducing the\n     * total supply.\n     *\n     * Emits a {Transfer} event with `to` set to the zero address.\n     *\n     * Requirements:\n     *\n     * - `account` cannot be the zero address.\n     * - `account` must have at least `amount` tokens.\n     */\n    function _burn(address account, uint256 amount) internal virtual {\n        require(account != address(0), \"ERC20: burn from the zero address\");\n\n        _beforeTokenTransfer(account, address(0), amount);\n\n        uint256 accountBalance = _balances[account];\n        require(accountBalance >= amount, \"ERC20: burn amount exceeds balance\");\n        unchecked {\n            _balances[account] = accountBalance - amount;\n            // Overflow not possible: amount <= accountBalance <= totalSupply.\n            _totalSupply -= amount;\n        }\n\n        emit Transfer(account, address(0), amount);\n\n        _afterTokenTransfer(account, address(0), amount);\n    }\n\n    /**\n     * @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.\n     *\n     * This internal function is equivalent to `approve`, and can be used to\n     * e.g. set automatic allowances for certain subsystems, etc.\n     *\n     * Emits an {Approval} event.\n     *\n     * Requirements:\n     *\n     * - `owner` cannot be the zero address.\n     * - `spender` cannot be the zero address.\n     */\n    function _approve(address owner, address spender, uint256 amount) internal virtual {\n        require(owner != address(0), \"ERC20: approve from the zero address\");\n        require(spender != address(0), \"ERC20: approve to the zero address\");\n\n        _allowances[owner][spender] = amount;\n        emit Approval(owner, spender, amount);\n    }\n\n    /**\n     * @dev Updates `owner` s allowance for `spender` based on spent `amount`.\n     *\n     * Does not update the allowance amount in case of infinite allowance.\n     * Revert if not enough allowance is available.\n     *\n     * Might emit an {Approval} event.\n     */\n    function _spendAllowance(address owner, address spender, uint256 amount) internal virtual {\n        uint256 currentAllowance = allowance(owner, spender);\n        if (currentAllowance != type(uint256).max) {\n            require(currentAllowance >= amount, \"ERC20: insufficient allowance\");\n            unchecked {\n                _approve(owner, spender, currentAllowance - amount);\n            }\n        }\n    }\n\n    /**\n     * @dev Hook that is called before any transfer of tokens. This includes\n     * minting and burning.\n     *\n     * Calling conditions:\n     *\n     * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens\n     * will be transferred to `to`.\n     * - when `from` is zero, `amount` tokens will be minted for `to`.\n     * - when `to` is zero, `amount` of ``from``'s tokens will be burned.\n     * - `from` and `to` are never both zero.\n     *\n     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].\n     */\n    function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual {}\n\n    /**\n     * @dev Hook that is called after any transfer of tokens. This includes\n     * minting and burning.\n     *\n     * Calling conditions:\n     *\n     * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens\n     * has been transferred to `to`.\n     * - when `from` is zero, `amount` tokens have been minted for `to`.\n     * - when `to` is zero, `amount` of ``from``'s tokens have been burned.\n     * - `from` and `to` are never both zero.\n     *\n     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].\n     */\n    function _afterTokenTransfer(address from, address to, uint256 amount) internal virtual {}\n}\n"
        },
        "@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol": {
          "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/IERC20Metadata.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../IERC20.sol\";\n\n/**\n * @dev Interface for the optional metadata functions from the ERC20 standard.\n *\n * _Available since v4.1._\n */\ninterface IERC20Metadata is IERC20 {\n    /**\n     * @dev Returns the name of the token.\n     */\n    function name() external view returns (string memory);\n\n    /**\n     * @dev Returns the symbol of the token.\n     */\n    function symbol() external view returns (string memory);\n\n    /**\n     * @dev Returns the decimals places of the token.\n     */\n    function decimals() external view returns (uint8);\n}\n"
        },
        "@openzeppelin/contracts/token/ERC20/extensions/IERC20Permit.sol": {
          "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.4) (token/ERC20/extensions/IERC20Permit.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Interface of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in\n * https://eips.ethereum.org/EIPS/eip-2612[EIP-2612].\n *\n * Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by\n * presenting a message signed by the account. By not relying on {IERC20-approve}, the token holder account doesn't\n * need to send a transaction, and thus is not required to hold Ether at all.\n *\n * ==== Security Considerations\n *\n * There are two important considerations concerning the use of `permit`. The first is that a valid permit signature\n * expresses an allowance, and it should not be assumed to convey additional meaning. In particular, it should not be\n * considered as an intention to spend the allowance in any specific way. The second is that because permits have\n * built-in replay protection and can be submitted by anyone, they can be frontrun. A protocol that uses permits should\n * take this into consideration and allow a `permit` call to fail. Combining these two aspects, a pattern that may be\n * generally recommended is:\n *\n * ```solidity\n * function doThingWithPermit(..., uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s) public {\n *     try token.permit(msg.sender, address(this), value, deadline, v, r, s) {} catch {}\n *     doThing(..., value);\n * }\n *\n * function doThing(..., uint256 value) public {\n *     token.safeTransferFrom(msg.sender, address(this), value);\n *     ...\n * }\n * ```\n *\n * Observe that: 1) `msg.sender` is used as the owner, leaving no ambiguity as to the signer intent, and 2) the use of\n * `try/catch` allows the permit to fail and makes the code tolerant to frontrunning. (See also\n * {SafeERC20-safeTransferFrom}).\n *\n * Additionally, note that smart contract wallets (such as Argent or Safe) are not able to produce permit signatures, so\n * contracts should have entry points that don't rely on permit.\n */\ninterface IERC20Permit {\n    /**\n     * @dev Sets `value` as the allowance of `spender` over ``owner``'s tokens,\n     * given ``owner``'s signed approval.\n     *\n     * IMPORTANT: The same issues {IERC20-approve} has related to transaction\n     * ordering also apply here.\n     *\n     * Emits an {Approval} event.\n     *\n     * Requirements:\n     *\n     * - `spender` cannot be the zero address.\n     * - `deadline` must be a timestamp in the future.\n     * - `v`, `r` and `s` must be a valid `secp256k1` signature from `owner`\n     * over the EIP712-formatted function arguments.\n     * - the signature must use ``owner``'s current nonce (see {nonces}).\n     *\n     * For more information on the signature format, see the\n     * https://eips.ethereum.org/EIPS/eip-2612#specification[relevant EIP\n     * section].\n     *\n     * CAUTION: See Security Considerations above.\n     */\n    function permit(\n        address owner,\n        address spender,\n        uint256 value,\n        uint256 deadline,\n        uint8 v,\n        bytes32 r,\n        bytes32 s\n    ) external;\n\n    /**\n     * @dev Returns the current nonce for `owner`. This value must be\n     * included whenever a signature is generated for {permit}.\n     *\n     * Every successful call to {permit} increases ``owner``'s nonce by one. This\n     * prevents a signature from being used multiple times.\n     */\n    function nonces(address owner) external view returns (uint256);\n\n    /**\n     * @dev Returns the domain separator used in the encoding of the signature for {permit}, as defined by {EIP712}.\n     */\n    // solhint-disable-next-line func-name-mixedcase\n    function DOMAIN_SEPARATOR() external view returns (bytes32);\n}\n"
        },
        "@openzeppelin/contracts/token/ERC20/IERC20.sol": {
          "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/IERC20.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Interface of the ERC20 standard as defined in the EIP.\n */\ninterface IERC20 {\n    /**\n     * @dev Emitted when `value` tokens are moved from one account (`from`) to\n     * another (`to`).\n     *\n     * Note that `value` may be zero.\n     */\n    event Transfer(address indexed from, address indexed to, uint256 value);\n\n    /**\n     * @dev Emitted when the allowance of a `spender` for an `owner` is set by\n     * a call to {approve}. `value` is the new allowance.\n     */\n    event Approval(address indexed owner, address indexed spender, uint256 value);\n\n    /**\n     * @dev Returns the amount of tokens in existence.\n     */\n    function totalSupply() external view returns (uint256);\n\n    /**\n     * @dev Returns the amount of tokens owned by `account`.\n     */\n    function balanceOf(address account) external view returns (uint256);\n\n    /**\n     * @dev Moves `amount` tokens from the caller's account to `to`.\n     *\n     * Returns a boolean value indicating whether the operation succeeded.\n     *\n     * Emits a {Transfer} event.\n     */\n    function transfer(address to, uint256 amount) external returns (bool);\n\n    /**\n     * @dev Returns the remaining number of tokens that `spender` will be\n     * allowed to spend on behalf of `owner` through {transferFrom}. This is\n     * zero by default.\n     *\n     * This value changes when {approve} or {transferFrom} are called.\n     */\n    function allowance(address owner, address spender) external view returns (uint256);\n\n    /**\n     * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.\n     *\n     * Returns a boolean value indicating whether the operation succeeded.\n     *\n     * IMPORTANT: Beware that changing an allowance with this method brings the risk\n     * that someone may use both the old and the new allowance by unfortunate\n     * transaction ordering. One possible solution to mitigate this race\n     * condition is to first reduce the spender's allowance to 0 and set the\n     * desired value afterwards:\n     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729\n     *\n     * Emits an {Approval} event.\n     */\n    function approve(address spender, uint256 amount) external returns (bool);\n\n    /**\n     * @dev Moves `amount` tokens from `from` to `to` using the\n     * allowance mechanism. `amount` is then deducted from the caller's\n     * allowance.\n     *\n     * Returns a boolean value indicating whether the operation succeeded.\n     *\n     * Emits a {Transfer} event.\n     */\n    function transferFrom(address from, address to, uint256 amount) external returns (bool);\n}\n"
        },
        "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol": {
          "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.3) (token/ERC20/utils/SafeERC20.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../IERC20.sol\";\nimport \"../extensions/IERC20Permit.sol\";\nimport \"../../../utils/Address.sol\";\n\n/**\n * @title SafeERC20\n * @dev Wrappers around ERC20 operations that throw on failure (when the token\n * contract returns false). Tokens that return no value (and instead revert or\n * throw on failure) are also supported, non-reverting calls are assumed to be\n * successful.\n * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,\n * which allows you to call the safe operations as `token.safeTransfer(...)`, etc.\n */\nlibrary SafeERC20 {\n    using Address for address;\n\n    /**\n     * @dev Transfer `value` amount of `token` from the calling contract to `to`. If `token` returns no value,\n     * non-reverting calls are assumed to be successful.\n     */\n    function safeTransfer(IERC20 token, address to, uint256 value) internal {\n        _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));\n    }\n\n    /**\n     * @dev Transfer `value` amount of `token` from `from` to `to`, spending the approval given by `from` to the\n     * calling contract. If `token` returns no value, non-reverting calls are assumed to be successful.\n     */\n    function safeTransferFrom(IERC20 token, address from, address to, uint256 value) internal {\n        _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));\n    }\n\n    /**\n     * @dev Deprecated. This function has issues similar to the ones found in\n     * {IERC20-approve}, and its usage is discouraged.\n     *\n     * Whenever possible, use {safeIncreaseAllowance} and\n     * {safeDecreaseAllowance} instead.\n     */\n    function safeApprove(IERC20 token, address spender, uint256 value) internal {\n        // safeApprove should only be called when setting an initial allowance,\n        // or when resetting it to zero. To increase and decrease it, use\n        // 'safeIncreaseAllowance' and 'safeDecreaseAllowance'\n        require(\n            (value == 0) || (token.allowance(address(this), spender) == 0),\n            \"SafeERC20: approve from non-zero to non-zero allowance\"\n        );\n        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));\n    }\n\n    /**\n     * @dev Increase the calling contract's allowance toward `spender` by `value`. If `token` returns no value,\n     * non-reverting calls are assumed to be successful.\n     */\n    function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal {\n        uint256 oldAllowance = token.allowance(address(this), spender);\n        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, oldAllowance + value));\n    }\n\n    /**\n     * @dev Decrease the calling contract's allowance toward `spender` by `value`. If `token` returns no value,\n     * non-reverting calls are assumed to be successful.\n     */\n    function safeDecreaseAllowance(IERC20 token, address spender, uint256 value) internal {\n        unchecked {\n            uint256 oldAllowance = token.allowance(address(this), spender);\n            require(oldAllowance >= value, \"SafeERC20: decreased allowance below zero\");\n            _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, oldAllowance - value));\n        }\n    }\n\n    /**\n     * @dev Set the calling contract's allowance toward `spender` to `value`. If `token` returns no value,\n     * non-reverting calls are assumed to be successful. Meant to be used with tokens that require the approval\n     * to be set to zero before setting it to a non-zero value, such as USDT.\n     */\n    function forceApprove(IERC20 token, address spender, uint256 value) internal {\n        bytes memory approvalCall = abi.encodeWithSelector(token.approve.selector, spender, value);\n\n        if (!_callOptionalReturnBool(token, approvalCall)) {\n            _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, 0));\n            _callOptionalReturn(token, approvalCall);\n        }\n    }\n\n    /**\n     * @dev Use a ERC-2612 signature to set the `owner` approval toward `spender` on `token`.\n     * Revert on invalid signature.\n     */\n    function safePermit(\n        IERC20Permit token,\n        address owner,\n        address spender,\n        uint256 value,\n        uint256 deadline,\n        uint8 v,\n        bytes32 r,\n        bytes32 s\n    ) internal {\n        uint256 nonceBefore = token.nonces(owner);\n        token.permit(owner, spender, value, deadline, v, r, s);\n        uint256 nonceAfter = token.nonces(owner);\n        require(nonceAfter == nonceBefore + 1, \"SafeERC20: permit did not succeed\");\n    }\n\n    /**\n     * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement\n     * on the return value: the return value is optional (but if data is returned, it must not be false).\n     * @param token The token targeted by the call.\n     * @param data The call data (encoded using abi.encode or one of its variants).\n     */\n    function _callOptionalReturn(IERC20 token, bytes memory data) private {\n        // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since\n        // we're implementing it ourselves. We use {Address-functionCall} to perform this call, which verifies that\n        // the target address contains contract code and also asserts for success in the low-level call.\n\n        bytes memory returndata = address(token).functionCall(data, \"SafeERC20: low-level call failed\");\n        require(returndata.length == 0 || abi.decode(returndata, (bool)), \"SafeERC20: ERC20 operation did not succeed\");\n    }\n\n    /**\n     * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement\n     * on the return value: the return value is optional (but if data is returned, it must not be false).\n     * @param token The token targeted by the call.\n     * @param data The call data (encoded using abi.encode or one of its variants).\n     *\n     * This is a variant of {_callOptionalReturn} that silents catches all reverts and returns a bool instead.\n     */\n    function _callOptionalReturnBool(IERC20 token, bytes memory data) private returns (bool) {\n        // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since\n        // we're implementing it ourselves. We cannot use {Address-functionCall} here since this should return false\n        // and not revert is the subcall reverts.\n\n        (bool success, bytes memory returndata) = address(token).call(data);\n        return\n            success && (returndata.length == 0 || abi.decode(returndata, (bool))) && Address.isContract(address(token));\n    }\n}\n"
        },
        "@openzeppelin/contracts/token/ERC721/ERC721.sol": {
          "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC721/ERC721.sol)\n\npragma solidity ^0.8.0;\n\nimport \"./IERC721.sol\";\nimport \"./IERC721Receiver.sol\";\nimport \"./extensions/IERC721Metadata.sol\";\nimport \"../../utils/Address.sol\";\nimport \"../../utils/Context.sol\";\nimport \"../../utils/Strings.sol\";\nimport \"../../utils/introspection/ERC165.sol\";\n\n/**\n * @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including\n * the Metadata extension, but not including the Enumerable extension, which is available separately as\n * {ERC721Enumerable}.\n */\ncontract ERC721 is Context, ERC165, IERC721, IERC721Metadata {\n    using Address for address;\n    using Strings for uint256;\n\n    // Token name\n    string private _name;\n\n    // Token symbol\n    string private _symbol;\n\n    // Mapping from token ID to owner address\n    mapping(uint256 => address) private _owners;\n\n    // Mapping owner address to token count\n    mapping(address => uint256) private _balances;\n\n    // Mapping from token ID to approved address\n    mapping(uint256 => address) private _tokenApprovals;\n\n    // Mapping from owner to operator approvals\n    mapping(address => mapping(address => bool)) private _operatorApprovals;\n\n    /**\n     * @dev Initializes the contract by setting a `name` and a `symbol` to the token collection.\n     */\n    constructor(string memory name_, string memory symbol_) {\n        _name = name_;\n        _symbol = symbol_;\n    }\n\n    /**\n     * @dev See {IERC165-supportsInterface}.\n     */\n    function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) {\n        return\n            interfaceId == type(IERC721).interfaceId ||\n            interfaceId == type(IERC721Metadata).interfaceId ||\n            super.supportsInterface(interfaceId);\n    }\n\n    /**\n     * @dev See {IERC721-balanceOf}.\n     */\n    function balanceOf(address owner) public view virtual override returns (uint256) {\n        require(owner != address(0), \"ERC721: address zero is not a valid owner\");\n        return _balances[owner];\n    }\n\n    /**\n     * @dev See {IERC721-ownerOf}.\n     */\n    function ownerOf(uint256 tokenId) public view virtual override returns (address) {\n        address owner = _ownerOf(tokenId);\n        require(owner != address(0), \"ERC721: invalid token ID\");\n        return owner;\n    }\n\n    /**\n     * @dev See {IERC721Metadata-name}.\n     */\n    function name() public view virtual override returns (string memory) {\n        return _name;\n    }\n\n    /**\n     * @dev See {IERC721Metadata-symbol}.\n     */\n    function symbol() public view virtual override returns (string memory) {\n        return _symbol;\n    }\n\n    /**\n     * @dev See {IERC721Metadata-tokenURI}.\n     */\n    function tokenURI(uint256 tokenId) public view virtual override returns (string memory) {\n        _requireMinted(tokenId);\n\n        string memory baseURI = _baseURI();\n        return bytes(baseURI).length > 0 ? string(abi.encodePacked(baseURI, tokenId.toString())) : \"\";\n    }\n\n    /**\n     * @dev Base URI for computing {tokenURI}. If set, the resulting URI for each\n     * token will be the concatenation of the `baseURI` and the `tokenId`. Empty\n     * by default, can be overridden in child contracts.\n     */\n    function _baseURI() internal view virtual returns (string memory) {\n        return \"\";\n    }\n\n    /**\n     * @dev See {IERC721-approve}.\n     */\n    function approve(address to, uint256 tokenId) public virtual override {\n        address owner = ERC721.ownerOf(tokenId);\n        require(to != owner, \"ERC721: approval to current owner\");\n\n        require(\n            _msgSender() == owner || isApprovedForAll(owner, _msgSender()),\n            \"ERC721: approve caller is not token owner or approved for all\"\n        );\n\n        _approve(to, tokenId);\n    }\n\n    /**\n     * @dev See {IERC721-getApproved}.\n     */\n    function getApproved(uint256 tokenId) public view virtual override returns (address) {\n        _requireMinted(tokenId);\n\n        return _tokenApprovals[tokenId];\n    }\n\n    /**\n     * @dev See {IERC721-setApprovalForAll}.\n     */\n    function setApprovalForAll(address operator, bool approved) public virtual override {\n        _setApprovalForAll(_msgSender(), operator, approved);\n    }\n\n    /**\n     * @dev See {IERC721-isApprovedForAll}.\n     */\n    function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) {\n        return _operatorApprovals[owner][operator];\n    }\n\n    /**\n     * @dev See {IERC721-transferFrom}.\n     */\n    function transferFrom(address from, address to, uint256 tokenId) public virtual override {\n        //solhint-disable-next-line max-line-length\n        require(_isApprovedOrOwner(_msgSender(), tokenId), \"ERC721: caller is not token owner or approved\");\n\n        _transfer(from, to, tokenId);\n    }\n\n    /**\n     * @dev See {IERC721-safeTransferFrom}.\n     */\n    function safeTransferFrom(address from, address to, uint256 tokenId) public virtual override {\n        safeTransferFrom(from, to, tokenId, \"\");\n    }\n\n    /**\n     * @dev See {IERC721-safeTransferFrom}.\n     */\n    function safeTransferFrom(address from, address to, uint256 tokenId, bytes memory data) public virtual override {\n        require(_isApprovedOrOwner(_msgSender(), tokenId), \"ERC721: caller is not token owner or approved\");\n        _safeTransfer(from, to, tokenId, data);\n    }\n\n    /**\n     * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients\n     * are aware of the ERC721 protocol to prevent tokens from being forever locked.\n     *\n     * `data` is additional data, it has no specified format and it is sent in call to `to`.\n     *\n     * This internal function is equivalent to {safeTransferFrom}, and can be used to e.g.\n     * implement alternative mechanisms to perform token transfer, such as signature-based.\n     *\n     * Requirements:\n     *\n     * - `from` cannot be the zero address.\n     * - `to` cannot be the zero address.\n     * - `tokenId` token must exist and be owned by `from`.\n     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\n     *\n     * Emits a {Transfer} event.\n     */\n    function _safeTransfer(address from, address to, uint256 tokenId, bytes memory data) internal virtual {\n        _transfer(from, to, tokenId);\n        require(_checkOnERC721Received(from, to, tokenId, data), \"ERC721: transfer to non ERC721Receiver implementer\");\n    }\n\n    /**\n     * @dev Returns the owner of the `tokenId`. Does NOT revert if token doesn't exist\n     */\n    function _ownerOf(uint256 tokenId) internal view virtual returns (address) {\n        return _owners[tokenId];\n    }\n\n    /**\n     * @dev Returns whether `tokenId` exists.\n     *\n     * Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.\n     *\n     * Tokens start existing when they are minted (`_mint`),\n     * and stop existing when they are burned (`_burn`).\n     */\n    function _exists(uint256 tokenId) internal view virtual returns (bool) {\n        return _ownerOf(tokenId) != address(0);\n    }\n\n    /**\n     * @dev Returns whether `spender` is allowed to manage `tokenId`.\n     *\n     * Requirements:\n     *\n     * - `tokenId` must exist.\n     */\n    function _isApprovedOrOwner(address spender, uint256 tokenId) internal view virtual returns (bool) {\n        address owner = ERC721.ownerOf(tokenId);\n        return (spender == owner || isApprovedForAll(owner, spender) || getApproved(tokenId) == spender);\n    }\n\n    /**\n     * @dev Safely mints `tokenId` and transfers it to `to`.\n     *\n     * Requirements:\n     *\n     * - `tokenId` must not exist.\n     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\n     *\n     * Emits a {Transfer} event.\n     */\n    function _safeMint(address to, uint256 tokenId) internal virtual {\n        _safeMint(to, tokenId, \"\");\n    }\n\n    /**\n     * @dev Same as {xref-ERC721-_safeMint-address-uint256-}[`_safeMint`], with an additional `data` parameter which is\n     * forwarded in {IERC721Receiver-onERC721Received} to contract recipients.\n     */\n    function _safeMint(address to, uint256 tokenId, bytes memory data) internal virtual {\n        _mint(to, tokenId);\n        require(\n            _checkOnERC721Received(address(0), to, tokenId, data),\n            \"ERC721: transfer to non ERC721Receiver implementer\"\n        );\n    }\n\n    /**\n     * @dev Mints `tokenId` and transfers it to `to`.\n     *\n     * WARNING: Usage of this method is discouraged, use {_safeMint} whenever possible\n     *\n     * Requirements:\n     *\n     * - `tokenId` must not exist.\n     * - `to` cannot be the zero address.\n     *\n     * Emits a {Transfer} event.\n     */\n    function _mint(address to, uint256 tokenId) internal virtual {\n        require(to != address(0), \"ERC721: mint to the zero address\");\n        require(!_exists(tokenId), \"ERC721: token already minted\");\n\n        _beforeTokenTransfer(address(0), to, tokenId, 1);\n\n        // Check that tokenId was not minted by `_beforeTokenTransfer` hook\n        require(!_exists(tokenId), \"ERC721: token already minted\");\n\n        unchecked {\n            // Will not overflow unless all 2**256 token ids are minted to the same owner.\n            // Given that tokens are minted one by one, it is impossible in practice that\n            // this ever happens. Might change if we allow batch minting.\n            // The ERC fails to describe this case.\n            _balances[to] += 1;\n        }\n\n        _owners[tokenId] = to;\n\n        emit Transfer(address(0), to, tokenId);\n\n        _afterTokenTransfer(address(0), to, tokenId, 1);\n    }\n\n    /**\n     * @dev Destroys `tokenId`.\n     * The approval is cleared when the token is burned.\n     * This is an internal function that does not check if the sender is authorized to operate on the token.\n     *\n     * Requirements:\n     *\n     * - `tokenId` must exist.\n     *\n     * Emits a {Transfer} event.\n     */\n    function _burn(uint256 tokenId) internal virtual {\n        address owner = ERC721.ownerOf(tokenId);\n\n        _beforeTokenTransfer(owner, address(0), tokenId, 1);\n\n        // Update ownership in case tokenId was transferred by `_beforeTokenTransfer` hook\n        owner = ERC721.ownerOf(tokenId);\n\n        // Clear approvals\n        delete _tokenApprovals[tokenId];\n\n        unchecked {\n            // Cannot overflow, as that would require more tokens to be burned/transferred\n            // out than the owner initially received through minting and transferring in.\n            _balances[owner] -= 1;\n        }\n        delete _owners[tokenId];\n\n        emit Transfer(owner, address(0), tokenId);\n\n        _afterTokenTransfer(owner, address(0), tokenId, 1);\n    }\n\n    /**\n     * @dev Transfers `tokenId` from `from` to `to`.\n     *  As opposed to {transferFrom}, this imposes no restrictions on msg.sender.\n     *\n     * Requirements:\n     *\n     * - `to` cannot be the zero address.\n     * - `tokenId` token must be owned by `from`.\n     *\n     * Emits a {Transfer} event.\n     */\n    function _transfer(address from, address to, uint256 tokenId) internal virtual {\n        require(ERC721.ownerOf(tokenId) == from, \"ERC721: transfer from incorrect owner\");\n        require(to != address(0), \"ERC721: transfer to the zero address\");\n\n        _beforeTokenTransfer(from, to, tokenId, 1);\n\n        // Check that tokenId was not transferred by `_beforeTokenTransfer` hook\n        require(ERC721.ownerOf(tokenId) == from, \"ERC721: transfer from incorrect owner\");\n\n        // Clear approvals from the previous owner\n        delete _tokenApprovals[tokenId];\n\n        unchecked {\n            // `_balances[from]` cannot overflow for the same reason as described in `_burn`:\n            // `from`'s balance is the number of token held, which is at least one before the current\n            // transfer.\n            // `_balances[to]` could overflow in the conditions described in `_mint`. That would require\n            // all 2**256 token ids to be minted, which in practice is impossible.\n            _balances[from] -= 1;\n            _balances[to] += 1;\n        }\n        _owners[tokenId] = to;\n\n        emit Transfer(from, to, tokenId);\n\n        _afterTokenTransfer(from, to, tokenId, 1);\n    }\n\n    /**\n     * @dev Approve `to` to operate on `tokenId`\n     *\n     * Emits an {Approval} event.\n     */\n    function _approve(address to, uint256 tokenId) internal virtual {\n        _tokenApprovals[tokenId] = to;\n        emit Approval(ERC721.ownerOf(tokenId), to, tokenId);\n    }\n\n    /**\n     * @dev Approve `operator` to operate on all of `owner` tokens\n     *\n     * Emits an {ApprovalForAll} event.\n     */\n    function _setApprovalForAll(address owner, address operator, bool approved) internal virtual {\n        require(owner != operator, \"ERC721: approve to caller\");\n        _operatorApprovals[owner][operator] = approved;\n        emit ApprovalForAll(owner, operator, approved);\n    }\n\n    /**\n     * @dev Reverts if the `tokenId` has not been minted yet.\n     */\n    function _requireMinted(uint256 tokenId) internal view virtual {\n        require(_exists(tokenId), \"ERC721: invalid token ID\");\n    }\n\n    /**\n     * @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address.\n     * The call is not executed if the target address is not a contract.\n     *\n     * @param from address representing the previous owner of the given token ID\n     * @param to target address that will receive the tokens\n     * @param tokenId uint256 ID of the token to be transferred\n     * @param data bytes optional data to send along with the call\n     * @return bool whether the call correctly returned the expected magic value\n     */\n    function _checkOnERC721Received(\n        address from,\n        address to,\n        uint256 tokenId,\n        bytes memory data\n    ) private returns (bool) {\n        if (to.isContract()) {\n            try IERC721Receiver(to).onERC721Received(_msgSender(), from, tokenId, data) returns (bytes4 retval) {\n                return retval == IERC721Receiver.onERC721Received.selector;\n            } catch (bytes memory reason) {\n                if (reason.length == 0) {\n                    revert(\"ERC721: transfer to non ERC721Receiver implementer\");\n                } else {\n                    /// @solidity memory-safe-assembly\n                    assembly {\n                        revert(add(32, reason), mload(reason))\n                    }\n                }\n            }\n        } else {\n            return true;\n        }\n    }\n\n    /**\n     * @dev Hook that is called before any token transfer. This includes minting and burning. If {ERC721Consecutive} is\n     * used, the hook may be called as part of a consecutive (batch) mint, as indicated by `batchSize` greater than 1.\n     *\n     * Calling conditions:\n     *\n     * - When `from` and `to` are both non-zero, ``from``'s tokens will be transferred to `to`.\n     * - When `from` is zero, the tokens will be minted for `to`.\n     * - When `to` is zero, ``from``'s tokens will be burned.\n     * - `from` and `to` are never both zero.\n     * - `batchSize` is non-zero.\n     *\n     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].\n     */\n    function _beforeTokenTransfer(address from, address to, uint256 firstTokenId, uint256 batchSize) internal virtual {}\n\n    /**\n     * @dev Hook that is called after any token transfer. This includes minting and burning. If {ERC721Consecutive} is\n     * used, the hook may be called as part of a consecutive (batch) mint, as indicated by `batchSize` greater than 1.\n     *\n     * Calling conditions:\n     *\n     * - When `from` and `to` are both non-zero, ``from``'s tokens were transferred to `to`.\n     * - When `from` is zero, the tokens were minted for `to`.\n     * - When `to` is zero, ``from``'s tokens were burned.\n     * - `from` and `to` are never both zero.\n     * - `batchSize` is non-zero.\n     *\n     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].\n     */\n    function _afterTokenTransfer(address from, address to, uint256 firstTokenId, uint256 batchSize) internal virtual {}\n\n    /**\n     * @dev Unsafe write access to the balances, used by extensions that \"mint\" tokens using an {ownerOf} override.\n     *\n     * WARNING: Anyone calling this MUST ensure that the balances remain consistent with the ownership. The invariant\n     * being that for any address `a` the value returned by `balanceOf(a)` must be equal to the number of tokens such\n     * that `ownerOf(tokenId)` is `a`.\n     */\n    // solhint-disable-next-line func-name-mixedcase\n    function __unsafe_increaseBalance(address account, uint256 amount) internal {\n        _balances[account] += amount;\n    }\n}\n"
        },
        "@openzeppelin/contracts/token/ERC721/extensions/IERC721Metadata.sol": {
          "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/IERC721Metadata.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../IERC721.sol\";\n\n/**\n * @title ERC-721 Non-Fungible Token Standard, optional metadata extension\n * @dev See https://eips.ethereum.org/EIPS/eip-721\n */\ninterface IERC721Metadata is IERC721 {\n    /**\n     * @dev Returns the token collection name.\n     */\n    function name() external view returns (string memory);\n\n    /**\n     * @dev Returns the token collection symbol.\n     */\n    function symbol() external view returns (string memory);\n\n    /**\n     * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token.\n     */\n    function tokenURI(uint256 tokenId) external view returns (string memory);\n}\n"
        },
        "@openzeppelin/contracts/token/ERC721/IERC721.sol": {
          "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC721/IERC721.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../../utils/introspection/IERC165.sol\";\n\n/**\n * @dev Required interface of an ERC721 compliant contract.\n */\ninterface IERC721 is IERC165 {\n    /**\n     * @dev Emitted when `tokenId` token is transferred from `from` to `to`.\n     */\n    event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);\n\n    /**\n     * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.\n     */\n    event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);\n\n    /**\n     * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.\n     */\n    event ApprovalForAll(address indexed owner, address indexed operator, bool approved);\n\n    /**\n     * @dev Returns the number of tokens in ``owner``'s account.\n     */\n    function balanceOf(address owner) external view returns (uint256 balance);\n\n    /**\n     * @dev Returns the owner of the `tokenId` token.\n     *\n     * Requirements:\n     *\n     * - `tokenId` must exist.\n     */\n    function ownerOf(uint256 tokenId) external view returns (address owner);\n\n    /**\n     * @dev Safely transfers `tokenId` token from `from` to `to`.\n     *\n     * Requirements:\n     *\n     * - `from` cannot be the zero address.\n     * - `to` cannot be the zero address.\n     * - `tokenId` token must exist and be owned by `from`.\n     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.\n     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\n     *\n     * Emits a {Transfer} event.\n     */\n    function safeTransferFrom(address from, address to, uint256 tokenId, bytes calldata data) external;\n\n    /**\n     * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients\n     * are aware of the ERC721 protocol to prevent tokens from being forever locked.\n     *\n     * Requirements:\n     *\n     * - `from` cannot be the zero address.\n     * - `to` cannot be the zero address.\n     * - `tokenId` token must exist and be owned by `from`.\n     * - If the caller is not `from`, it must have been allowed to move this token by either {approve} or {setApprovalForAll}.\n     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\n     *\n     * Emits a {Transfer} event.\n     */\n    function safeTransferFrom(address from, address to, uint256 tokenId) external;\n\n    /**\n     * @dev Transfers `tokenId` token from `from` to `to`.\n     *\n     * WARNING: Note that the caller is responsible to confirm that the recipient is capable of receiving ERC721\n     * or else they may be permanently lost. Usage of {safeTransferFrom} prevents loss, though the caller must\n     * understand this adds an external call which potentially creates a reentrancy vulnerability.\n     *\n     * Requirements:\n     *\n     * - `from` cannot be the zero address.\n     * - `to` cannot be the zero address.\n     * - `tokenId` token must be owned by `from`.\n     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.\n     *\n     * Emits a {Transfer} event.\n     */\n    function transferFrom(address from, address to, uint256 tokenId) external;\n\n    /**\n     * @dev Gives permission to `to` to transfer `tokenId` token to another account.\n     * The approval is cleared when the token is transferred.\n     *\n     * Only a single account can be approved at a time, so approving the zero address clears previous approvals.\n     *\n     * Requirements:\n     *\n     * - The caller must own the token or be an approved operator.\n     * - `tokenId` must exist.\n     *\n     * Emits an {Approval} event.\n     */\n    function approve(address to, uint256 tokenId) external;\n\n    /**\n     * @dev Approve or remove `operator` as an operator for the caller.\n     * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.\n     *\n     * Requirements:\n     *\n     * - The `operator` cannot be the caller.\n     *\n     * Emits an {ApprovalForAll} event.\n     */\n    function setApprovalForAll(address operator, bool approved) external;\n\n    /**\n     * @dev Returns the account approved for `tokenId` token.\n     *\n     * Requirements:\n     *\n     * - `tokenId` must exist.\n     */\n    function getApproved(uint256 tokenId) external view returns (address operator);\n\n    /**\n     * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.\n     *\n     * See {setApprovalForAll}\n     */\n    function isApprovedForAll(address owner, address operator) external view returns (bool);\n}\n"
        },
        "@openzeppelin/contracts/token/ERC721/IERC721Receiver.sol": {
          "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC721/IERC721Receiver.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @title ERC721 token receiver interface\n * @dev Interface for any contract that wants to support safeTransfers\n * from ERC721 asset contracts.\n */\ninterface IERC721Receiver {\n    /**\n     * @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom}\n     * by `operator` from `from`, this function is called.\n     *\n     * It must return its Solidity selector to confirm the token transfer.\n     * If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted.\n     *\n     * The selector can be obtained in Solidity with `IERC721Receiver.onERC721Received.selector`.\n     */\n    function onERC721Received(\n        address operator,\n        address from,\n        uint256 tokenId,\n        bytes calldata data\n    ) external returns (bytes4);\n}\n"
        },
        "@openzeppelin/contracts/utils/Address.sol": {
          "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (utils/Address.sol)\n\npragma solidity ^0.8.1;\n\n/**\n * @dev Collection of functions related to the address type\n */\nlibrary Address {\n    /**\n     * @dev Returns true if `account` is a contract.\n     *\n     * [IMPORTANT]\n     * ====\n     * It is unsafe to assume that an address for which this function returns\n     * false is an externally-owned account (EOA) and not a contract.\n     *\n     * Among others, `isContract` will return false for the following\n     * types of addresses:\n     *\n     *  - an externally-owned account\n     *  - a contract in construction\n     *  - an address where a contract will be created\n     *  - an address where a contract lived, but was destroyed\n     *\n     * Furthermore, `isContract` will also return true if the target contract within\n     * the same transaction is already scheduled for destruction by `SELFDESTRUCT`,\n     * which only has an effect at the end of a transaction.\n     * ====\n     *\n     * [IMPORTANT]\n     * ====\n     * You shouldn't rely on `isContract` to protect against flash loan attacks!\n     *\n     * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets\n     * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract\n     * constructor.\n     * ====\n     */\n    function isContract(address account) internal view returns (bool) {\n        // This method relies on extcodesize/address.code.length, which returns 0\n        // for contracts in construction, since the code is only stored at the end\n        // of the constructor execution.\n\n        return account.code.length > 0;\n    }\n\n    /**\n     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to\n     * `recipient`, forwarding all available gas and reverting on errors.\n     *\n     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost\n     * of certain opcodes, possibly making contracts go over the 2300 gas limit\n     * imposed by `transfer`, making them unable to receive funds via\n     * `transfer`. {sendValue} removes this limitation.\n     *\n     * https://consensys.net/diligence/blog/2019/09/stop-using-soliditys-transfer-now/[Learn more].\n     *\n     * IMPORTANT: because control is transferred to `recipient`, care must be\n     * taken to not create reentrancy vulnerabilities. Consider using\n     * {ReentrancyGuard} or the\n     * https://solidity.readthedocs.io/en/v0.8.0/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].\n     */\n    function sendValue(address payable recipient, uint256 amount) internal {\n        require(address(this).balance >= amount, \"Address: insufficient balance\");\n\n        (bool success, ) = recipient.call{value: amount}(\"\");\n        require(success, \"Address: unable to send value, recipient may have reverted\");\n    }\n\n    /**\n     * @dev Performs a Solidity function call using a low level `call`. A\n     * plain `call` is an unsafe replacement for a function call: use this\n     * function instead.\n     *\n     * If `target` reverts with a revert reason, it is bubbled up by this\n     * function (like regular Solidity function calls).\n     *\n     * Returns the raw returned data. To convert to the expected return value,\n     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].\n     *\n     * Requirements:\n     *\n     * - `target` must be a contract.\n     * - calling `target` with `data` must not revert.\n     *\n     * _Available since v3.1._\n     */\n    function functionCall(address target, bytes memory data) internal returns (bytes memory) {\n        return functionCallWithValue(target, data, 0, \"Address: low-level call failed\");\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with\n     * `errorMessage` as a fallback revert reason when `target` reverts.\n     *\n     * _Available since v3.1._\n     */\n    function functionCall(\n        address target,\n        bytes memory data,\n        string memory errorMessage\n    ) internal returns (bytes memory) {\n        return functionCallWithValue(target, data, 0, errorMessage);\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n     * but also transferring `value` wei to `target`.\n     *\n     * Requirements:\n     *\n     * - the calling contract must have an ETH balance of at least `value`.\n     * - the called Solidity function must be `payable`.\n     *\n     * _Available since v3.1._\n     */\n    function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {\n        return functionCallWithValue(target, data, value, \"Address: low-level call with value failed\");\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but\n     * with `errorMessage` as a fallback revert reason when `target` reverts.\n     *\n     * _Available since v3.1._\n     */\n    function functionCallWithValue(\n        address target,\n        bytes memory data,\n        uint256 value,\n        string memory errorMessage\n    ) internal returns (bytes memory) {\n        require(address(this).balance >= value, \"Address: insufficient balance for call\");\n        (bool success, bytes memory returndata) = target.call{value: value}(data);\n        return verifyCallResultFromTarget(target, success, returndata, errorMessage);\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n     * but performing a static call.\n     *\n     * _Available since v3.3._\n     */\n    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {\n        return functionStaticCall(target, data, \"Address: low-level static call failed\");\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\n     * but performing a static call.\n     *\n     * _Available since v3.3._\n     */\n    function functionStaticCall(\n        address target,\n        bytes memory data,\n        string memory errorMessage\n    ) internal view returns (bytes memory) {\n        (bool success, bytes memory returndata) = target.staticcall(data);\n        return verifyCallResultFromTarget(target, success, returndata, errorMessage);\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n     * but performing a delegate call.\n     *\n     * _Available since v3.4._\n     */\n    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {\n        return functionDelegateCall(target, data, \"Address: low-level delegate call failed\");\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\n     * but performing a delegate call.\n     *\n     * _Available since v3.4._\n     */\n    function functionDelegateCall(\n        address target,\n        bytes memory data,\n        string memory errorMessage\n    ) internal returns (bytes memory) {\n        (bool success, bytes memory returndata) = target.delegatecall(data);\n        return verifyCallResultFromTarget(target, success, returndata, errorMessage);\n    }\n\n    /**\n     * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling\n     * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.\n     *\n     * _Available since v4.8._\n     */\n    function verifyCallResultFromTarget(\n        address target,\n        bool success,\n        bytes memory returndata,\n        string memory errorMessage\n    ) internal view returns (bytes memory) {\n        if (success) {\n            if (returndata.length == 0) {\n                // only check isContract if the call was successful and the return data is empty\n                // otherwise we already know that it was a contract\n                require(isContract(target), \"Address: call to non-contract\");\n            }\n            return returndata;\n        } else {\n            _revert(returndata, errorMessage);\n        }\n    }\n\n    /**\n     * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the\n     * revert reason or using the provided one.\n     *\n     * _Available since v4.3._\n     */\n    function verifyCallResult(\n        bool success,\n        bytes memory returndata,\n        string memory errorMessage\n    ) internal pure returns (bytes memory) {\n        if (success) {\n            return returndata;\n        } else {\n            _revert(returndata, errorMessage);\n        }\n    }\n\n    function _revert(bytes memory returndata, string memory errorMessage) private pure {\n        // Look for revert reason and bubble it up if present\n        if (returndata.length > 0) {\n            // The easiest way to bubble the revert reason is using memory via assembly\n            /// @solidity memory-safe-assembly\n            assembly {\n                let returndata_size := mload(returndata)\n                revert(add(32, returndata), returndata_size)\n            }\n        } else {\n            revert(errorMessage);\n        }\n    }\n}\n"
        },
        "@openzeppelin/contracts/utils/Context.sol": {
          "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.4) (utils/Context.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Provides information about the current execution context, including the\n * sender of the transaction and its data. While these are generally available\n * via msg.sender and msg.data, they should not be accessed in such a direct\n * manner, since when dealing with meta-transactions the account sending and\n * paying for execution may not be the actual sender (as far as an application\n * is concerned).\n *\n * This contract is only required for intermediate, library-like contracts.\n */\nabstract contract Context {\n    function _msgSender() internal view virtual returns (address) {\n        return msg.sender;\n    }\n\n    function _msgData() internal view virtual returns (bytes calldata) {\n        return msg.data;\n    }\n\n    function _contextSuffixLength() internal view virtual returns (uint256) {\n        return 0;\n    }\n}\n"
        },
        "@openzeppelin/contracts/utils/cryptography/ECDSA.sol": {
          "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (utils/cryptography/ECDSA.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../Strings.sol\";\n\n/**\n * @dev Elliptic Curve Digital Signature Algorithm (ECDSA) operations.\n *\n * These functions can be used to verify that a message was signed by the holder\n * of the private keys of a given address.\n */\nlibrary ECDSA {\n    enum RecoverError {\n        NoError,\n        InvalidSignature,\n        InvalidSignatureLength,\n        InvalidSignatureS,\n        InvalidSignatureV // Deprecated in v4.8\n    }\n\n    function _throwError(RecoverError error) private pure {\n        if (error == RecoverError.NoError) {\n            return; // no error: do nothing\n        } else if (error == RecoverError.InvalidSignature) {\n            revert(\"ECDSA: invalid signature\");\n        } else if (error == RecoverError.InvalidSignatureLength) {\n            revert(\"ECDSA: invalid signature length\");\n        } else if (error == RecoverError.InvalidSignatureS) {\n            revert(\"ECDSA: invalid signature 's' value\");\n        }\n    }\n\n    /**\n     * @dev Returns the address that signed a hashed message (`hash`) with\n     * `signature` or error string. This address can then be used for verification purposes.\n     *\n     * The `ecrecover` EVM opcode allows for malleable (non-unique) signatures:\n     * this function rejects them by requiring the `s` value to be in the lower\n     * half order, and the `v` value to be either 27 or 28.\n     *\n     * IMPORTANT: `hash` _must_ be the result of a hash operation for the\n     * verification to be secure: it is possible to craft signatures that\n     * recover to arbitrary addresses for non-hashed data. A safe way to ensure\n     * this is by receiving a hash of the original message (which may otherwise\n     * be too long), and then calling {toEthSignedMessageHash} on it.\n     *\n     * Documentation for signature generation:\n     * - with https://web3js.readthedocs.io/en/v1.3.4/web3-eth-accounts.html#sign[Web3.js]\n     * - with https://docs.ethers.io/v5/api/signer/#Signer-signMessage[ethers]\n     *\n     * _Available since v4.3._\n     */\n    function tryRecover(bytes32 hash, bytes memory signature) internal pure returns (address, RecoverError) {\n        if (signature.length == 65) {\n            bytes32 r;\n            bytes32 s;\n            uint8 v;\n            // ecrecover takes the signature parameters, and the only way to get them\n            // currently is to use assembly.\n            /// @solidity memory-safe-assembly\n            assembly {\n                r := mload(add(signature, 0x20))\n                s := mload(add(signature, 0x40))\n                v := byte(0, mload(add(signature, 0x60)))\n            }\n            return tryRecover(hash, v, r, s);\n        } else {\n            return (address(0), RecoverError.InvalidSignatureLength);\n        }\n    }\n\n    /**\n     * @dev Returns the address that signed a hashed message (`hash`) with\n     * `signature`. This address can then be used for verification purposes.\n     *\n     * The `ecrecover` EVM opcode allows for malleable (non-unique) signatures:\n     * this function rejects them by requiring the `s` value to be in the lower\n     * half order, and the `v` value to be either 27 or 28.\n     *\n     * IMPORTANT: `hash` _must_ be the result of a hash operation for the\n     * verification to be secure: it is possible to craft signatures that\n     * recover to arbitrary addresses for non-hashed data. A safe way to ensure\n     * this is by receiving a hash of the original message (which may otherwise\n     * be too long), and then calling {toEthSignedMessageHash} on it.\n     */\n    function recover(bytes32 hash, bytes memory signature) internal pure returns (address) {\n        (address recovered, RecoverError error) = tryRecover(hash, signature);\n        _throwError(error);\n        return recovered;\n    }\n\n    /**\n     * @dev Overload of {ECDSA-tryRecover} that receives the `r` and `vs` short-signature fields separately.\n     *\n     * See https://eips.ethereum.org/EIPS/eip-2098[EIP-2098 short signatures]\n     *\n     * _Available since v4.3._\n     */\n    function tryRecover(bytes32 hash, bytes32 r, bytes32 vs) internal pure returns (address, RecoverError) {\n        bytes32 s = vs & bytes32(0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff);\n        uint8 v = uint8((uint256(vs) >> 255) + 27);\n        return tryRecover(hash, v, r, s);\n    }\n\n    /**\n     * @dev Overload of {ECDSA-recover} that receives the `r and `vs` short-signature fields separately.\n     *\n     * _Available since v4.2._\n     */\n    function recover(bytes32 hash, bytes32 r, bytes32 vs) internal pure returns (address) {\n        (address recovered, RecoverError error) = tryRecover(hash, r, vs);\n        _throwError(error);\n        return recovered;\n    }\n\n    /**\n     * @dev Overload of {ECDSA-tryRecover} that receives the `v`,\n     * `r` and `s` signature fields separately.\n     *\n     * _Available since v4.3._\n     */\n    function tryRecover(bytes32 hash, uint8 v, bytes32 r, bytes32 s) internal pure returns (address, RecoverError) {\n        // EIP-2 still allows signature malleability for ecrecover(). Remove this possibility and make the signature\n        // unique. Appendix F in the Ethereum Yellow paper (https://ethereum.github.io/yellowpaper/paper.pdf), defines\n        // the valid range for s in (301): 0 < s < secp256k1n ÷ 2 + 1, and for v in (302): v ∈ {27, 28}. Most\n        // signatures from current libraries generate a unique signature with an s-value in the lower half order.\n        //\n        // If your library generates malleable signatures, such as s-values in the upper range, calculate a new s-value\n        // with 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141 - s1 and flip v from 27 to 28 or\n        // vice versa. If your library also generates signatures with 0/1 for v instead 27/28, add 27 to v to accept\n        // these malleable signatures as well.\n        if (uint256(s) > 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF5D576E7357A4501DDFE92F46681B20A0) {\n            return (address(0), RecoverError.InvalidSignatureS);\n        }\n\n        // If the signature is valid (and not malleable), return the signer address\n        address signer = ecrecover(hash, v, r, s);\n        if (signer == address(0)) {\n            return (address(0), RecoverError.InvalidSignature);\n        }\n\n        return (signer, RecoverError.NoError);\n    }\n\n    /**\n     * @dev Overload of {ECDSA-recover} that receives the `v`,\n     * `r` and `s` signature fields separately.\n     */\n    function recover(bytes32 hash, uint8 v, bytes32 r, bytes32 s) internal pure returns (address) {\n        (address recovered, RecoverError error) = tryRecover(hash, v, r, s);\n        _throwError(error);\n        return recovered;\n    }\n\n    /**\n     * @dev Returns an Ethereum Signed Message, created from a `hash`. This\n     * produces hash corresponding to the one signed with the\n     * https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`]\n     * JSON-RPC method as part of EIP-191.\n     *\n     * See {recover}.\n     */\n    function toEthSignedMessageHash(bytes32 hash) internal pure returns (bytes32 message) {\n        // 32 is the length in bytes of hash,\n        // enforced by the type signature above\n        /// @solidity memory-safe-assembly\n        assembly {\n            mstore(0x00, \"\\x19Ethereum Signed Message:\\n32\")\n            mstore(0x1c, hash)\n            message := keccak256(0x00, 0x3c)\n        }\n    }\n\n    /**\n     * @dev Returns an Ethereum Signed Message, created from `s`. This\n     * produces hash corresponding to the one signed with the\n     * https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`]\n     * JSON-RPC method as part of EIP-191.\n     *\n     * See {recover}.\n     */\n    function toEthSignedMessageHash(bytes memory s) internal pure returns (bytes32) {\n        return keccak256(abi.encodePacked(\"\\x19Ethereum Signed Message:\\n\", Strings.toString(s.length), s));\n    }\n\n    /**\n     * @dev Returns an Ethereum Signed Typed Data, created from a\n     * `domainSeparator` and a `structHash`. This produces hash corresponding\n     * to the one signed with the\n     * https://eips.ethereum.org/EIPS/eip-712[`eth_signTypedData`]\n     * JSON-RPC method as part of EIP-712.\n     *\n     * See {recover}.\n     */\n    function toTypedDataHash(bytes32 domainSeparator, bytes32 structHash) internal pure returns (bytes32 data) {\n        /// @solidity memory-safe-assembly\n        assembly {\n            let ptr := mload(0x40)\n            mstore(ptr, \"\\x19\\x01\")\n            mstore(add(ptr, 0x02), domainSeparator)\n            mstore(add(ptr, 0x22), structHash)\n            data := keccak256(ptr, 0x42)\n        }\n    }\n\n    /**\n     * @dev Returns an Ethereum Signed Data with intended validator, created from a\n     * `validator` and `data` according to the version 0 of EIP-191.\n     *\n     * See {recover}.\n     */\n    function toDataWithIntendedValidatorHash(address validator, bytes memory data) internal pure returns (bytes32) {\n        return keccak256(abi.encodePacked(\"\\x19\\x00\", validator, data));\n    }\n}\n"
        },
        "@openzeppelin/contracts/utils/cryptography/EIP712.sol": {
          "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (utils/cryptography/EIP712.sol)\n\npragma solidity ^0.8.8;\n\nimport \"./ECDSA.sol\";\nimport \"../ShortStrings.sol\";\nimport \"../../interfaces/IERC5267.sol\";\n\n/**\n * @dev https://eips.ethereum.org/EIPS/eip-712[EIP 712] is a standard for hashing and signing of typed structured data.\n *\n * The encoding specified in the EIP is very generic, and such a generic implementation in Solidity is not feasible,\n * thus this contract does not implement the encoding itself. Protocols need to implement the type-specific encoding\n * they need in their contracts using a combination of `abi.encode` and `keccak256`.\n *\n * This contract implements the EIP 712 domain separator ({_domainSeparatorV4}) that is used as part of the encoding\n * scheme, and the final step of the encoding to obtain the message digest that is then signed via ECDSA\n * ({_hashTypedDataV4}).\n *\n * The implementation of the domain separator was designed to be as efficient as possible while still properly updating\n * the chain id to protect against replay attacks on an eventual fork of the chain.\n *\n * NOTE: This contract implements the version of the encoding known as \"v4\", as implemented by the JSON RPC method\n * https://docs.metamask.io/guide/signing-data.html[`eth_signTypedDataV4` in MetaMask].\n *\n * NOTE: In the upgradeable version of this contract, the cached values will correspond to the address, and the domain\n * separator of the implementation contract. This will cause the `_domainSeparatorV4` function to always rebuild the\n * separator from the immutable values, which is cheaper than accessing a cached version in cold storage.\n *\n * _Available since v3.4._\n *\n * @custom:oz-upgrades-unsafe-allow state-variable-immutable state-variable-assignment\n */\nabstract contract EIP712 is IERC5267 {\n    using ShortStrings for *;\n\n    bytes32 private constant _TYPE_HASH =\n        keccak256(\"EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)\");\n\n    // Cache the domain separator as an immutable value, but also store the chain id that it corresponds to, in order to\n    // invalidate the cached domain separator if the chain id changes.\n    bytes32 private immutable _cachedDomainSeparator;\n    uint256 private immutable _cachedChainId;\n    address private immutable _cachedThis;\n\n    bytes32 private immutable _hashedName;\n    bytes32 private immutable _hashedVersion;\n\n    ShortString private immutable _name;\n    ShortString private immutable _version;\n    string private _nameFallback;\n    string private _versionFallback;\n\n    /**\n     * @dev Initializes the domain separator and parameter caches.\n     *\n     * The meaning of `name` and `version` is specified in\n     * https://eips.ethereum.org/EIPS/eip-712#definition-of-domainseparator[EIP 712]:\n     *\n     * - `name`: the user readable name of the signing domain, i.e. the name of the DApp or the protocol.\n     * - `version`: the current major version of the signing domain.\n     *\n     * NOTE: These parameters cannot be changed except through a xref:learn::upgrading-smart-contracts.adoc[smart\n     * contract upgrade].\n     */\n    constructor(string memory name, string memory version) {\n        _name = name.toShortStringWithFallback(_nameFallback);\n        _version = version.toShortStringWithFallback(_versionFallback);\n        _hashedName = keccak256(bytes(name));\n        _hashedVersion = keccak256(bytes(version));\n\n        _cachedChainId = block.chainid;\n        _cachedDomainSeparator = _buildDomainSeparator();\n        _cachedThis = address(this);\n    }\n\n    /**\n     * @dev Returns the domain separator for the current chain.\n     */\n    function _domainSeparatorV4() internal view returns (bytes32) {\n        if (address(this) == _cachedThis && block.chainid == _cachedChainId) {\n            return _cachedDomainSeparator;\n        } else {\n            return _buildDomainSeparator();\n        }\n    }\n\n    function _buildDomainSeparator() private view returns (bytes32) {\n        return keccak256(abi.encode(_TYPE_HASH, _hashedName, _hashedVersion, block.chainid, address(this)));\n    }\n\n    /**\n     * @dev Given an already https://eips.ethereum.org/EIPS/eip-712#definition-of-hashstruct[hashed struct], this\n     * function returns the hash of the fully encoded EIP712 message for this domain.\n     *\n     * This hash can be used together with {ECDSA-recover} to obtain the signer of a message. For example:\n     *\n     * ```solidity\n     * bytes32 digest = _hashTypedDataV4(keccak256(abi.encode(\n     *     keccak256(\"Mail(address to,string contents)\"),\n     *     mailTo,\n     *     keccak256(bytes(mailContents))\n     * )));\n     * address signer = ECDSA.recover(digest, signature);\n     * ```\n     */\n    function _hashTypedDataV4(bytes32 structHash) internal view virtual returns (bytes32) {\n        return ECDSA.toTypedDataHash(_domainSeparatorV4(), structHash);\n    }\n\n    /**\n     * @dev See {EIP-5267}.\n     *\n     * _Available since v4.9._\n     */\n    function eip712Domain()\n        public\n        view\n        virtual\n        override\n        returns (\n            bytes1 fields,\n            string memory name,\n            string memory version,\n            uint256 chainId,\n            address verifyingContract,\n            bytes32 salt,\n            uint256[] memory extensions\n        )\n    {\n        return (\n            hex\"0f\", // 01111\n            _name.toStringWithFallback(_nameFallback),\n            _version.toStringWithFallback(_versionFallback),\n            block.chainid,\n            address(this),\n            bytes32(0),\n            new uint256[](0)\n        );\n    }\n}\n"
        },
        "@openzeppelin/contracts/utils/cryptography/MerkleProof.sol": {
          "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.2) (utils/cryptography/MerkleProof.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev These functions deal with verification of Merkle Tree proofs.\n *\n * The tree and the proofs can be generated using our\n * https://github.com/OpenZeppelin/merkle-tree[JavaScript library].\n * You will find a quickstart guide in the readme.\n *\n * WARNING: You should avoid using leaf values that are 64 bytes long prior to\n * hashing, or use a hash function other than keccak256 for hashing leaves.\n * This is because the concatenation of a sorted pair of internal nodes in\n * the merkle tree could be reinterpreted as a leaf value.\n * OpenZeppelin's JavaScript library generates merkle trees that are safe\n * against this attack out of the box.\n */\nlibrary MerkleProof {\n    /**\n     * @dev Returns true if a `leaf` can be proved to be a part of a Merkle tree\n     * defined by `root`. For this, a `proof` must be provided, containing\n     * sibling hashes on the branch from the leaf to the root of the tree. Each\n     * pair of leaves and each pair of pre-images are assumed to be sorted.\n     */\n    function verify(bytes32[] memory proof, bytes32 root, bytes32 leaf) internal pure returns (bool) {\n        return processProof(proof, leaf) == root;\n    }\n\n    /**\n     * @dev Calldata version of {verify}\n     *\n     * _Available since v4.7._\n     */\n    function verifyCalldata(bytes32[] calldata proof, bytes32 root, bytes32 leaf) internal pure returns (bool) {\n        return processProofCalldata(proof, leaf) == root;\n    }\n\n    /**\n     * @dev Returns the rebuilt hash obtained by traversing a Merkle tree up\n     * from `leaf` using `proof`. A `proof` is valid if and only if the rebuilt\n     * hash matches the root of the tree. When processing the proof, the pairs\n     * of leafs & pre-images are assumed to be sorted.\n     *\n     * _Available since v4.4._\n     */\n    function processProof(bytes32[] memory proof, bytes32 leaf) internal pure returns (bytes32) {\n        bytes32 computedHash = leaf;\n        for (uint256 i = 0; i < proof.length; i++) {\n            computedHash = _hashPair(computedHash, proof[i]);\n        }\n        return computedHash;\n    }\n\n    /**\n     * @dev Calldata version of {processProof}\n     *\n     * _Available since v4.7._\n     */\n    function processProofCalldata(bytes32[] calldata proof, bytes32 leaf) internal pure returns (bytes32) {\n        bytes32 computedHash = leaf;\n        for (uint256 i = 0; i < proof.length; i++) {\n            computedHash = _hashPair(computedHash, proof[i]);\n        }\n        return computedHash;\n    }\n\n    /**\n     * @dev Returns true if the `leaves` can be simultaneously proven to be a part of a merkle tree defined by\n     * `root`, according to `proof` and `proofFlags` as described in {processMultiProof}.\n     *\n     * CAUTION: Not all merkle trees admit multiproofs. See {processMultiProof} for details.\n     *\n     * _Available since v4.7._\n     */\n    function multiProofVerify(\n        bytes32[] memory proof,\n        bool[] memory proofFlags,\n        bytes32 root,\n        bytes32[] memory leaves\n    ) internal pure returns (bool) {\n        return processMultiProof(proof, proofFlags, leaves) == root;\n    }\n\n    /**\n     * @dev Calldata version of {multiProofVerify}\n     *\n     * CAUTION: Not all merkle trees admit multiproofs. See {processMultiProof} for details.\n     *\n     * _Available since v4.7._\n     */\n    function multiProofVerifyCalldata(\n        bytes32[] calldata proof,\n        bool[] calldata proofFlags,\n        bytes32 root,\n        bytes32[] memory leaves\n    ) internal pure returns (bool) {\n        return processMultiProofCalldata(proof, proofFlags, leaves) == root;\n    }\n\n    /**\n     * @dev Returns the root of a tree reconstructed from `leaves` and sibling nodes in `proof`. The reconstruction\n     * proceeds by incrementally reconstructing all inner nodes by combining a leaf/inner node with either another\n     * leaf/inner node or a proof sibling node, depending on whether each `proofFlags` item is true or false\n     * respectively.\n     *\n     * CAUTION: Not all merkle trees admit multiproofs. To use multiproofs, it is sufficient to ensure that: 1) the tree\n     * is complete (but not necessarily perfect), 2) the leaves to be proven are in the opposite order they are in the\n     * tree (i.e., as seen from right to left starting at the deepest layer and continuing at the next layer).\n     *\n     * _Available since v4.7._\n     */\n    function processMultiProof(\n        bytes32[] memory proof,\n        bool[] memory proofFlags,\n        bytes32[] memory leaves\n    ) internal pure returns (bytes32 merkleRoot) {\n        // This function rebuilds the root hash by traversing the tree up from the leaves. The root is rebuilt by\n        // consuming and producing values on a queue. The queue starts with the `leaves` array, then goes onto the\n        // `hashes` array. At the end of the process, the last hash in the `hashes` array should contain the root of\n        // the merkle tree.\n        uint256 leavesLen = leaves.length;\n        uint256 proofLen = proof.length;\n        uint256 totalHashes = proofFlags.length;\n\n        // Check proof validity.\n        require(leavesLen + proofLen - 1 == totalHashes, \"MerkleProof: invalid multiproof\");\n\n        // The xxxPos values are \"pointers\" to the next value to consume in each array. All accesses are done using\n        // `xxx[xxxPos++]`, which return the current value and increment the pointer, thus mimicking a queue's \"pop\".\n        bytes32[] memory hashes = new bytes32[](totalHashes);\n        uint256 leafPos = 0;\n        uint256 hashPos = 0;\n        uint256 proofPos = 0;\n        // At each step, we compute the next hash using two values:\n        // - a value from the \"main queue\". If not all leaves have been consumed, we get the next leaf, otherwise we\n        //   get the next hash.\n        // - depending on the flag, either another value from the \"main queue\" (merging branches) or an element from the\n        //   `proof` array.\n        for (uint256 i = 0; i < totalHashes; i++) {\n            bytes32 a = leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++];\n            bytes32 b = proofFlags[i]\n                ? (leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++])\n                : proof[proofPos++];\n            hashes[i] = _hashPair(a, b);\n        }\n\n        if (totalHashes > 0) {\n            require(proofPos == proofLen, \"MerkleProof: invalid multiproof\");\n            unchecked {\n                return hashes[totalHashes - 1];\n            }\n        } else if (leavesLen > 0) {\n            return leaves[0];\n        } else {\n            return proof[0];\n        }\n    }\n\n    /**\n     * @dev Calldata version of {processMultiProof}.\n     *\n     * CAUTION: Not all merkle trees admit multiproofs. See {processMultiProof} for details.\n     *\n     * _Available since v4.7._\n     */\n    function processMultiProofCalldata(\n        bytes32[] calldata proof,\n        bool[] calldata proofFlags,\n        bytes32[] memory leaves\n    ) internal pure returns (bytes32 merkleRoot) {\n        // This function rebuilds the root hash by traversing the tree up from the leaves. The root is rebuilt by\n        // consuming and producing values on a queue. The queue starts with the `leaves` array, then goes onto the\n        // `hashes` array. At the end of the process, the last hash in the `hashes` array should contain the root of\n        // the merkle tree.\n        uint256 leavesLen = leaves.length;\n        uint256 proofLen = proof.length;\n        uint256 totalHashes = proofFlags.length;\n\n        // Check proof validity.\n        require(leavesLen + proofLen - 1 == totalHashes, \"MerkleProof: invalid multiproof\");\n\n        // The xxxPos values are \"pointers\" to the next value to consume in each array. All accesses are done using\n        // `xxx[xxxPos++]`, which return the current value and increment the pointer, thus mimicking a queue's \"pop\".\n        bytes32[] memory hashes = new bytes32[](totalHashes);\n        uint256 leafPos = 0;\n        uint256 hashPos = 0;\n        uint256 proofPos = 0;\n        // At each step, we compute the next hash using two values:\n        // - a value from the \"main queue\". If not all leaves have been consumed, we get the next leaf, otherwise we\n        //   get the next hash.\n        // - depending on the flag, either another value from the \"main queue\" (merging branches) or an element from the\n        //   `proof` array.\n        for (uint256 i = 0; i < totalHashes; i++) {\n            bytes32 a = leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++];\n            bytes32 b = proofFlags[i]\n                ? (leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++])\n                : proof[proofPos++];\n            hashes[i] = _hashPair(a, b);\n        }\n\n        if (totalHashes > 0) {\n            require(proofPos == proofLen, \"MerkleProof: invalid multiproof\");\n            unchecked {\n                return hashes[totalHashes - 1];\n            }\n        } else if (leavesLen > 0) {\n            return leaves[0];\n        } else {\n            return proof[0];\n        }\n    }\n\n    function _hashPair(bytes32 a, bytes32 b) private pure returns (bytes32) {\n        return a < b ? _efficientHash(a, b) : _efficientHash(b, a);\n    }\n\n    function _efficientHash(bytes32 a, bytes32 b) private pure returns (bytes32 value) {\n        /// @solidity memory-safe-assembly\n        assembly {\n            mstore(0x00, a)\n            mstore(0x20, b)\n            value := keccak256(0x00, 0x40)\n        }\n    }\n}\n"
        },
        "@openzeppelin/contracts/utils/cryptography/SignatureChecker.sol": {
          "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (utils/cryptography/SignatureChecker.sol)\n\npragma solidity ^0.8.0;\n\nimport \"./ECDSA.sol\";\nimport \"../../interfaces/IERC1271.sol\";\n\n/**\n * @dev Signature verification helper that can be used instead of `ECDSA.recover` to seamlessly support both ECDSA\n * signatures from externally owned accounts (EOAs) as well as ERC1271 signatures from smart contract wallets like\n * Argent and Gnosis Safe.\n *\n * _Available since v4.1._\n */\nlibrary SignatureChecker {\n    /**\n     * @dev Checks if a signature is valid for a given signer and data hash. If the signer is a smart contract, the\n     * signature is validated against that smart contract using ERC1271, otherwise it's validated using `ECDSA.recover`.\n     *\n     * NOTE: Unlike ECDSA signatures, contract signatures are revocable, and the outcome of this function can thus\n     * change through time. It could return true at block N and false at block N+1 (or the opposite).\n     */\n    function isValidSignatureNow(address signer, bytes32 hash, bytes memory signature) internal view returns (bool) {\n        (address recovered, ECDSA.RecoverError error) = ECDSA.tryRecover(hash, signature);\n        return\n            (error == ECDSA.RecoverError.NoError && recovered == signer) ||\n            isValidERC1271SignatureNow(signer, hash, signature);\n    }\n\n    /**\n     * @dev Checks if a signature is valid for a given signer and data hash. The signature is validated\n     * against the signer smart contract using ERC1271.\n     *\n     * NOTE: Unlike ECDSA signatures, contract signatures are revocable, and the outcome of this function can thus\n     * change through time. It could return true at block N and false at block N+1 (or the opposite).\n     */\n    function isValidERC1271SignatureNow(\n        address signer,\n        bytes32 hash,\n        bytes memory signature\n    ) internal view returns (bool) {\n        (bool success, bytes memory result) = signer.staticcall(\n            abi.encodeWithSelector(IERC1271.isValidSignature.selector, hash, signature)\n        );\n        return (success &&\n            result.length >= 32 &&\n            abi.decode(result, (bytes32)) == bytes32(IERC1271.isValidSignature.selector));\n    }\n}\n"
        },
        "@openzeppelin/contracts/utils/introspection/ERC165.sol": {
          "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol)\n\npragma solidity ^0.8.0;\n\nimport \"./IERC165.sol\";\n\n/**\n * @dev Implementation of the {IERC165} interface.\n *\n * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check\n * for the additional interface id that will be supported. For example:\n *\n * ```solidity\n * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {\n *     return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);\n * }\n * ```\n *\n * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation.\n */\nabstract contract ERC165 is IERC165 {\n    /**\n     * @dev See {IERC165-supportsInterface}.\n     */\n    function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {\n        return interfaceId == type(IERC165).interfaceId;\n    }\n}\n"
        },
        "@openzeppelin/contracts/utils/introspection/IERC165.sol": {
          "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Interface of the ERC165 standard, as defined in the\n * https://eips.ethereum.org/EIPS/eip-165[EIP].\n *\n * Implementers can declare support of contract interfaces, which can then be\n * queried by others ({ERC165Checker}).\n *\n * For an implementation, see {ERC165}.\n */\ninterface IERC165 {\n    /**\n     * @dev Returns true if this contract implements the interface defined by\n     * `interfaceId`. See the corresponding\n     * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]\n     * to learn more about how these ids are created.\n     *\n     * This function call must use less than 30 000 gas.\n     */\n    function supportsInterface(bytes4 interfaceId) external view returns (bool);\n}\n"
        },
        "@openzeppelin/contracts/utils/math/Math.sol": {
          "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (utils/math/Math.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Standard math utilities missing in the Solidity language.\n */\nlibrary Math {\n    enum Rounding {\n        Down, // Toward negative infinity\n        Up, // Toward infinity\n        Zero // Toward zero\n    }\n\n    /**\n     * @dev Returns the largest of two numbers.\n     */\n    function max(uint256 a, uint256 b) internal pure returns (uint256) {\n        return a > b ? a : b;\n    }\n\n    /**\n     * @dev Returns the smallest of two numbers.\n     */\n    function min(uint256 a, uint256 b) internal pure returns (uint256) {\n        return a < b ? a : b;\n    }\n\n    /**\n     * @dev Returns the average of two numbers. The result is rounded towards\n     * zero.\n     */\n    function average(uint256 a, uint256 b) internal pure returns (uint256) {\n        // (a + b) / 2 can overflow.\n        return (a & b) + (a ^ b) / 2;\n    }\n\n    /**\n     * @dev Returns the ceiling of the division of two numbers.\n     *\n     * This differs from standard division with `/` in that it rounds up instead\n     * of rounding down.\n     */\n    function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) {\n        // (a + b - 1) / b can overflow on addition, so we distribute.\n        return a == 0 ? 0 : (a - 1) / b + 1;\n    }\n\n    /**\n     * @notice Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or denominator == 0\n     * @dev Original credit to Remco Bloemen under MIT license (https://xn--2-umb.com/21/muldiv)\n     * with further edits by Uniswap Labs also under MIT license.\n     */\n    function mulDiv(uint256 x, uint256 y, uint256 denominator) internal pure returns (uint256 result) {\n        unchecked {\n            // 512-bit multiply [prod1 prod0] = x * y. Compute the product mod 2^256 and mod 2^256 - 1, then use\n            // use the Chinese Remainder Theorem to reconstruct the 512 bit result. The result is stored in two 256\n            // variables such that product = prod1 * 2^256 + prod0.\n            uint256 prod0; // Least significant 256 bits of the product\n            uint256 prod1; // Most significant 256 bits of the product\n            assembly {\n                let mm := mulmod(x, y, not(0))\n                prod0 := mul(x, y)\n                prod1 := sub(sub(mm, prod0), lt(mm, prod0))\n            }\n\n            // Handle non-overflow cases, 256 by 256 division.\n            if (prod1 == 0) {\n                // Solidity will revert if denominator == 0, unlike the div opcode on its own.\n                // The surrounding unchecked block does not change this fact.\n                // See https://docs.soliditylang.org/en/latest/control-structures.html#checked-or-unchecked-arithmetic.\n                return prod0 / denominator;\n            }\n\n            // Make sure the result is less than 2^256. Also prevents denominator == 0.\n            require(denominator > prod1, \"Math: mulDiv overflow\");\n\n            ///////////////////////////////////////////////\n            // 512 by 256 division.\n            ///////////////////////////////////////////////\n\n            // Make division exact by subtracting the remainder from [prod1 prod0].\n            uint256 remainder;\n            assembly {\n                // Compute remainder using mulmod.\n                remainder := mulmod(x, y, denominator)\n\n                // Subtract 256 bit number from 512 bit number.\n                prod1 := sub(prod1, gt(remainder, prod0))\n                prod0 := sub(prod0, remainder)\n            }\n\n            // Factor powers of two out of denominator and compute largest power of two divisor of denominator. Always >= 1.\n            // See https://cs.stackexchange.com/q/138556/92363.\n\n            // Does not overflow because the denominator cannot be zero at this stage in the function.\n            uint256 twos = denominator & (~denominator + 1);\n            assembly {\n                // Divide denominator by twos.\n                denominator := div(denominator, twos)\n\n                // Divide [prod1 prod0] by twos.\n                prod0 := div(prod0, twos)\n\n                // Flip twos such that it is 2^256 / twos. If twos is zero, then it becomes one.\n                twos := add(div(sub(0, twos), twos), 1)\n            }\n\n            // Shift in bits from prod1 into prod0.\n            prod0 |= prod1 * twos;\n\n            // Invert denominator mod 2^256. Now that denominator is an odd number, it has an inverse modulo 2^256 such\n            // that denominator * inv = 1 mod 2^256. Compute the inverse by starting with a seed that is correct for\n            // four bits. That is, denominator * inv = 1 mod 2^4.\n            uint256 inverse = (3 * denominator) ^ 2;\n\n            // Use the Newton-Raphson iteration to improve the precision. Thanks to Hensel's lifting lemma, this also works\n            // in modular arithmetic, doubling the correct bits in each step.\n            inverse *= 2 - denominator * inverse; // inverse mod 2^8\n            inverse *= 2 - denominator * inverse; // inverse mod 2^16\n            inverse *= 2 - denominator * inverse; // inverse mod 2^32\n            inverse *= 2 - denominator * inverse; // inverse mod 2^64\n            inverse *= 2 - denominator * inverse; // inverse mod 2^128\n            inverse *= 2 - denominator * inverse; // inverse mod 2^256\n\n            // Because the division is now exact we can divide by multiplying with the modular inverse of denominator.\n            // This will give us the correct result modulo 2^256. Since the preconditions guarantee that the outcome is\n            // less than 2^256, this is the final result. We don't need to compute the high bits of the result and prod1\n            // is no longer required.\n            result = prod0 * inverse;\n            return result;\n        }\n    }\n\n    /**\n     * @notice Calculates x * y / denominator with full precision, following the selected rounding direction.\n     */\n    function mulDiv(uint256 x, uint256 y, uint256 denominator, Rounding rounding) internal pure returns (uint256) {\n        uint256 result = mulDiv(x, y, denominator);\n        if (rounding == Rounding.Up && mulmod(x, y, denominator) > 0) {\n            result += 1;\n        }\n        return result;\n    }\n\n    /**\n     * @dev Returns the square root of a number. If the number is not a perfect square, the value is rounded down.\n     *\n     * Inspired by Henry S. Warren, Jr.'s \"Hacker's Delight\" (Chapter 11).\n     */\n    function sqrt(uint256 a) internal pure returns (uint256) {\n        if (a == 0) {\n            return 0;\n        }\n\n        // For our first guess, we get the biggest power of 2 which is smaller than the square root of the target.\n        //\n        // We know that the \"msb\" (most significant bit) of our target number `a` is a power of 2 such that we have\n        // `msb(a) <= a < 2*msb(a)`. This value can be written `msb(a)=2**k` with `k=log2(a)`.\n        //\n        // This can be rewritten `2**log2(a) <= a < 2**(log2(a) + 1)`\n        // → `sqrt(2**k) <= sqrt(a) < sqrt(2**(k+1))`\n        // → `2**(k/2) <= sqrt(a) < 2**((k+1)/2) <= 2**(k/2 + 1)`\n        //\n        // Consequently, `2**(log2(a) / 2)` is a good first approximation of `sqrt(a)` with at least 1 correct bit.\n        uint256 result = 1 << (log2(a) >> 1);\n\n        // At this point `result` is an estimation with one bit of precision. We know the true value is a uint128,\n        // since it is the square root of a uint256. Newton's method converges quadratically (precision doubles at\n        // every iteration). We thus need at most 7 iteration to turn our partial result with one bit of precision\n        // into the expected uint128 result.\n        unchecked {\n            result = (result + a / result) >> 1;\n            result = (result + a / result) >> 1;\n            result = (result + a / result) >> 1;\n            result = (result + a / result) >> 1;\n            result = (result + a / result) >> 1;\n            result = (result + a / result) >> 1;\n            result = (result + a / result) >> 1;\n            return min(result, a / result);\n        }\n    }\n\n    /**\n     * @notice Calculates sqrt(a), following the selected rounding direction.\n     */\n    function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) {\n        unchecked {\n            uint256 result = sqrt(a);\n            return result + (rounding == Rounding.Up && result * result < a ? 1 : 0);\n        }\n    }\n\n    /**\n     * @dev Return the log in base 2, rounded down, of a positive value.\n     * Returns 0 if given 0.\n     */\n    function log2(uint256 value) internal pure returns (uint256) {\n        uint256 result = 0;\n        unchecked {\n            if (value >> 128 > 0) {\n                value >>= 128;\n                result += 128;\n            }\n            if (value >> 64 > 0) {\n                value >>= 64;\n                result += 64;\n            }\n            if (value >> 32 > 0) {\n                value >>= 32;\n                result += 32;\n            }\n            if (value >> 16 > 0) {\n                value >>= 16;\n                result += 16;\n            }\n            if (value >> 8 > 0) {\n                value >>= 8;\n                result += 8;\n            }\n            if (value >> 4 > 0) {\n                value >>= 4;\n                result += 4;\n            }\n            if (value >> 2 > 0) {\n                value >>= 2;\n                result += 2;\n            }\n            if (value >> 1 > 0) {\n                result += 1;\n            }\n        }\n        return result;\n    }\n\n    /**\n     * @dev Return the log in base 2, following the selected rounding direction, of a positive value.\n     * Returns 0 if given 0.\n     */\n    function log2(uint256 value, Rounding rounding) internal pure returns (uint256) {\n        unchecked {\n            uint256 result = log2(value);\n            return result + (rounding == Rounding.Up && 1 << result < value ? 1 : 0);\n        }\n    }\n\n    /**\n     * @dev Return the log in base 10, rounded down, of a positive value.\n     * Returns 0 if given 0.\n     */\n    function log10(uint256 value) internal pure returns (uint256) {\n        uint256 result = 0;\n        unchecked {\n            if (value >= 10 ** 64) {\n                value /= 10 ** 64;\n                result += 64;\n            }\n            if (value >= 10 ** 32) {\n                value /= 10 ** 32;\n                result += 32;\n            }\n            if (value >= 10 ** 16) {\n                value /= 10 ** 16;\n                result += 16;\n            }\n            if (value >= 10 ** 8) {\n                value /= 10 ** 8;\n                result += 8;\n            }\n            if (value >= 10 ** 4) {\n                value /= 10 ** 4;\n                result += 4;\n            }\n            if (value >= 10 ** 2) {\n                value /= 10 ** 2;\n                result += 2;\n            }\n            if (value >= 10 ** 1) {\n                result += 1;\n            }\n        }\n        return result;\n    }\n\n    /**\n     * @dev Return the log in base 10, following the selected rounding direction, of a positive value.\n     * Returns 0 if given 0.\n     */\n    function log10(uint256 value, Rounding rounding) internal pure returns (uint256) {\n        unchecked {\n            uint256 result = log10(value);\n            return result + (rounding == Rounding.Up && 10 ** result < value ? 1 : 0);\n        }\n    }\n\n    /**\n     * @dev Return the log in base 256, rounded down, of a positive value.\n     * Returns 0 if given 0.\n     *\n     * Adding one to the result gives the number of pairs of hex symbols needed to represent `value` as a hex string.\n     */\n    function log256(uint256 value) internal pure returns (uint256) {\n        uint256 result = 0;\n        unchecked {\n            if (value >> 128 > 0) {\n                value >>= 128;\n                result += 16;\n            }\n            if (value >> 64 > 0) {\n                value >>= 64;\n                result += 8;\n            }\n            if (value >> 32 > 0) {\n                value >>= 32;\n                result += 4;\n            }\n            if (value >> 16 > 0) {\n                value >>= 16;\n                result += 2;\n            }\n            if (value >> 8 > 0) {\n                result += 1;\n            }\n        }\n        return result;\n    }\n\n    /**\n     * @dev Return the log in base 256, following the selected rounding direction, of a positive value.\n     * Returns 0 if given 0.\n     */\n    function log256(uint256 value, Rounding rounding) internal pure returns (uint256) {\n        unchecked {\n            uint256 result = log256(value);\n            return result + (rounding == Rounding.Up && 1 << (result << 3) < value ? 1 : 0);\n        }\n    }\n}\n"
        },
        "@openzeppelin/contracts/utils/math/SignedMath.sol": {
          "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.8.0) (utils/math/SignedMath.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Standard signed math utilities missing in the Solidity language.\n */\nlibrary SignedMath {\n    /**\n     * @dev Returns the largest of two signed numbers.\n     */\n    function max(int256 a, int256 b) internal pure returns (int256) {\n        return a > b ? a : b;\n    }\n\n    /**\n     * @dev Returns the smallest of two signed numbers.\n     */\n    function min(int256 a, int256 b) internal pure returns (int256) {\n        return a < b ? a : b;\n    }\n\n    /**\n     * @dev Returns the average of two signed numbers without overflow.\n     * The result is rounded towards zero.\n     */\n    function average(int256 a, int256 b) internal pure returns (int256) {\n        // Formula from the book \"Hacker's Delight\"\n        int256 x = (a & b) + ((a ^ b) >> 1);\n        return x + (int256(uint256(x) >> 255) & (a ^ b));\n    }\n\n    /**\n     * @dev Returns the absolute unsigned value of a signed value.\n     */\n    function abs(int256 n) internal pure returns (uint256) {\n        unchecked {\n            // must be unchecked in order to support `n = type(int256).min`\n            return uint256(n >= 0 ? n : -n);\n        }\n    }\n}\n"
        },
        "@openzeppelin/contracts/utils/ShortStrings.sol": {
          "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (utils/ShortStrings.sol)\n\npragma solidity ^0.8.8;\n\nimport \"./StorageSlot.sol\";\n\n// | string  | 0xAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA   |\n// | length  | 0x                                                              BB |\ntype ShortString is bytes32;\n\n/**\n * @dev This library provides functions to convert short memory strings\n * into a `ShortString` type that can be used as an immutable variable.\n *\n * Strings of arbitrary length can be optimized using this library if\n * they are short enough (up to 31 bytes) by packing them with their\n * length (1 byte) in a single EVM word (32 bytes). Additionally, a\n * fallback mechanism can be used for every other case.\n *\n * Usage example:\n *\n * ```solidity\n * contract Named {\n *     using ShortStrings for *;\n *\n *     ShortString private immutable _name;\n *     string private _nameFallback;\n *\n *     constructor(string memory contractName) {\n *         _name = contractName.toShortStringWithFallback(_nameFallback);\n *     }\n *\n *     function name() external view returns (string memory) {\n *         return _name.toStringWithFallback(_nameFallback);\n *     }\n * }\n * ```\n */\nlibrary ShortStrings {\n    // Used as an identifier for strings longer than 31 bytes.\n    bytes32 private constant _FALLBACK_SENTINEL = 0x00000000000000000000000000000000000000000000000000000000000000FF;\n\n    error StringTooLong(string str);\n    error InvalidShortString();\n\n    /**\n     * @dev Encode a string of at most 31 chars into a `ShortString`.\n     *\n     * This will trigger a `StringTooLong` error is the input string is too long.\n     */\n    function toShortString(string memory str) internal pure returns (ShortString) {\n        bytes memory bstr = bytes(str);\n        if (bstr.length > 31) {\n            revert StringTooLong(str);\n        }\n        return ShortString.wrap(bytes32(uint256(bytes32(bstr)) | bstr.length));\n    }\n\n    /**\n     * @dev Decode a `ShortString` back to a \"normal\" string.\n     */\n    function toString(ShortString sstr) internal pure returns (string memory) {\n        uint256 len = byteLength(sstr);\n        // using `new string(len)` would work locally but is not memory safe.\n        string memory str = new string(32);\n        /// @solidity memory-safe-assembly\n        assembly {\n            mstore(str, len)\n            mstore(add(str, 0x20), sstr)\n        }\n        return str;\n    }\n\n    /**\n     * @dev Return the length of a `ShortString`.\n     */\n    function byteLength(ShortString sstr) internal pure returns (uint256) {\n        uint256 result = uint256(ShortString.unwrap(sstr)) & 0xFF;\n        if (result > 31) {\n            revert InvalidShortString();\n        }\n        return result;\n    }\n\n    /**\n     * @dev Encode a string into a `ShortString`, or write it to storage if it is too long.\n     */\n    function toShortStringWithFallback(string memory value, string storage store) internal returns (ShortString) {\n        if (bytes(value).length < 32) {\n            return toShortString(value);\n        } else {\n            StorageSlot.getStringSlot(store).value = value;\n            return ShortString.wrap(_FALLBACK_SENTINEL);\n        }\n    }\n\n    /**\n     * @dev Decode a string that was encoded to `ShortString` or written to storage using {setWithFallback}.\n     */\n    function toStringWithFallback(ShortString value, string storage store) internal pure returns (string memory) {\n        if (ShortString.unwrap(value) != _FALLBACK_SENTINEL) {\n            return toString(value);\n        } else {\n            return store;\n        }\n    }\n\n    /**\n     * @dev Return the length of a string that was encoded to `ShortString` or written to storage using {setWithFallback}.\n     *\n     * WARNING: This will return the \"byte length\" of the string. This may not reflect the actual length in terms of\n     * actual characters as the UTF-8 encoding of a single character can span over multiple bytes.\n     */\n    function byteLengthWithFallback(ShortString value, string storage store) internal view returns (uint256) {\n        if (ShortString.unwrap(value) != _FALLBACK_SENTINEL) {\n            return byteLength(value);\n        } else {\n            return bytes(store).length;\n        }\n    }\n}\n"
        },
        "@openzeppelin/contracts/utils/StorageSlot.sol": {
          "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (utils/StorageSlot.sol)\n// This file was procedurally generated from scripts/generate/templates/StorageSlot.js.\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Library for reading and writing primitive types to specific storage slots.\n *\n * Storage slots are often used to avoid storage conflict when dealing with upgradeable contracts.\n * This library helps with reading and writing to such slots without the need for inline assembly.\n *\n * The functions in this library return Slot structs that contain a `value` member that can be used to read or write.\n *\n * Example usage to set ERC1967 implementation slot:\n * ```solidity\n * contract ERC1967 {\n *     bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;\n *\n *     function _getImplementation() internal view returns (address) {\n *         return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value;\n *     }\n *\n *     function _setImplementation(address newImplementation) internal {\n *         require(Address.isContract(newImplementation), \"ERC1967: new implementation is not a contract\");\n *         StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation;\n *     }\n * }\n * ```\n *\n * _Available since v4.1 for `address`, `bool`, `bytes32`, `uint256`._\n * _Available since v4.9 for `string`, `bytes`._\n */\nlibrary StorageSlot {\n    struct AddressSlot {\n        address value;\n    }\n\n    struct BooleanSlot {\n        bool value;\n    }\n\n    struct Bytes32Slot {\n        bytes32 value;\n    }\n\n    struct Uint256Slot {\n        uint256 value;\n    }\n\n    struct StringSlot {\n        string value;\n    }\n\n    struct BytesSlot {\n        bytes value;\n    }\n\n    /**\n     * @dev Returns an `AddressSlot` with member `value` located at `slot`.\n     */\n    function getAddressSlot(bytes32 slot) internal pure returns (AddressSlot storage r) {\n        /// @solidity memory-safe-assembly\n        assembly {\n            r.slot := slot\n        }\n    }\n\n    /**\n     * @dev Returns an `BooleanSlot` with member `value` located at `slot`.\n     */\n    function getBooleanSlot(bytes32 slot) internal pure returns (BooleanSlot storage r) {\n        /// @solidity memory-safe-assembly\n        assembly {\n            r.slot := slot\n        }\n    }\n\n    /**\n     * @dev Returns an `Bytes32Slot` with member `value` located at `slot`.\n     */\n    function getBytes32Slot(bytes32 slot) internal pure returns (Bytes32Slot storage r) {\n        /// @solidity memory-safe-assembly\n        assembly {\n            r.slot := slot\n        }\n    }\n\n    /**\n     * @dev Returns an `Uint256Slot` with member `value` located at `slot`.\n     */\n    function getUint256Slot(bytes32 slot) internal pure returns (Uint256Slot storage r) {\n        /// @solidity memory-safe-assembly\n        assembly {\n            r.slot := slot\n        }\n    }\n\n    /**\n     * @dev Returns an `StringSlot` with member `value` located at `slot`.\n     */\n    function getStringSlot(bytes32 slot) internal pure returns (StringSlot storage r) {\n        /// @solidity memory-safe-assembly\n        assembly {\n            r.slot := slot\n        }\n    }\n\n    /**\n     * @dev Returns an `StringSlot` representation of the string storage pointer `store`.\n     */\n    function getStringSlot(string storage store) internal pure returns (StringSlot storage r) {\n        /// @solidity memory-safe-assembly\n        assembly {\n            r.slot := store.slot\n        }\n    }\n\n    /**\n     * @dev Returns an `BytesSlot` with member `value` located at `slot`.\n     */\n    function getBytesSlot(bytes32 slot) internal pure returns (BytesSlot storage r) {\n        /// @solidity memory-safe-assembly\n        assembly {\n            r.slot := slot\n        }\n    }\n\n    /**\n     * @dev Returns an `BytesSlot` representation of the bytes storage pointer `store`.\n     */\n    function getBytesSlot(bytes storage store) internal pure returns (BytesSlot storage r) {\n        /// @solidity memory-safe-assembly\n        assembly {\n            r.slot := store.slot\n        }\n    }\n}\n"
        },
        "@openzeppelin/contracts/utils/Strings.sol": {
          "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (utils/Strings.sol)\n\npragma solidity ^0.8.0;\n\nimport \"./math/Math.sol\";\nimport \"./math/SignedMath.sol\";\n\n/**\n * @dev String operations.\n */\nlibrary Strings {\n    bytes16 private constant _SYMBOLS = \"0123456789abcdef\";\n    uint8 private constant _ADDRESS_LENGTH = 20;\n\n    /**\n     * @dev Converts a `uint256` to its ASCII `string` decimal representation.\n     */\n    function toString(uint256 value) internal pure returns (string memory) {\n        unchecked {\n            uint256 length = Math.log10(value) + 1;\n            string memory buffer = new string(length);\n            uint256 ptr;\n            /// @solidity memory-safe-assembly\n            assembly {\n                ptr := add(buffer, add(32, length))\n            }\n            while (true) {\n                ptr--;\n                /// @solidity memory-safe-assembly\n                assembly {\n                    mstore8(ptr, byte(mod(value, 10), _SYMBOLS))\n                }\n                value /= 10;\n                if (value == 0) break;\n            }\n            return buffer;\n        }\n    }\n\n    /**\n     * @dev Converts a `int256` to its ASCII `string` decimal representation.\n     */\n    function toString(int256 value) internal pure returns (string memory) {\n        return string(abi.encodePacked(value < 0 ? \"-\" : \"\", toString(SignedMath.abs(value))));\n    }\n\n    /**\n     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.\n     */\n    function toHexString(uint256 value) internal pure returns (string memory) {\n        unchecked {\n            return toHexString(value, Math.log256(value) + 1);\n        }\n    }\n\n    /**\n     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.\n     */\n    function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {\n        bytes memory buffer = new bytes(2 * length + 2);\n        buffer[0] = \"0\";\n        buffer[1] = \"x\";\n        for (uint256 i = 2 * length + 1; i > 1; --i) {\n            buffer[i] = _SYMBOLS[value & 0xf];\n            value >>= 4;\n        }\n        require(value == 0, \"Strings: hex length insufficient\");\n        return string(buffer);\n    }\n\n    /**\n     * @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal representation.\n     */\n    function toHexString(address addr) internal pure returns (string memory) {\n        return toHexString(uint256(uint160(addr)), _ADDRESS_LENGTH);\n    }\n\n    /**\n     * @dev Returns true if the two strings are equal.\n     */\n    function equal(string memory a, string memory b) internal pure returns (bool) {\n        return keccak256(bytes(a)) == keccak256(bytes(b));\n    }\n}\n"
        },
        "@uniswap/lib/contracts/libraries/TransferHelper.sol": {
          "content": "pragma solidity >=0.6.0;\n\n// helper methods for interacting with ERC20 tokens and sending ETH that do not consistently return true/false\nlibrary TransferHelper {\n    function safeApprove(address token, address to, uint value) internal {\n        // bytes4(keccak256(bytes('approve(address,uint256)')));\n        (bool success, bytes memory data) = token.call(abi.encodeWithSelector(0x095ea7b3, to, value));\n        require(success && (data.length == 0 || abi.decode(data, (bool))), 'TransferHelper: APPROVE_FAILED');\n    }\n\n    function safeTransfer(address token, address to, uint value) internal {\n        // bytes4(keccak256(bytes('transfer(address,uint256)')));\n        (bool success, bytes memory data) = token.call(abi.encodeWithSelector(0xa9059cbb, to, value));\n        require(success && (data.length == 0 || abi.decode(data, (bool))), 'TransferHelper: TRANSFER_FAILED');\n    }\n\n    function safeTransferFrom(address token, address from, address to, uint value) internal {\n        // bytes4(keccak256(bytes('transferFrom(address,address,uint256)')));\n        (bool success, bytes memory data) = token.call(abi.encodeWithSelector(0x23b872dd, from, to, value));\n        require(success && (data.length == 0 || abi.decode(data, (bool))), 'TransferHelper: TRANSFER_FROM_FAILED');\n    }\n\n    function safeTransferETH(address to, uint value) internal {\n        (bool success,) = to.call{value:value}(new bytes(0));\n        require(success, 'TransferHelper: ETH_TRANSFER_FAILED');\n    }\n}\n"
        },
        "@uniswap/v2-core/contracts/interfaces/IERC20.sol": {
          "content": "pragma solidity >=0.5.0;\n\ninterface IERC20 {\n    event Approval(address indexed owner, address indexed spender, uint value);\n    event Transfer(address indexed from, address indexed to, uint value);\n\n    function name() external view returns (string memory);\n    function symbol() external view returns (string memory);\n    function decimals() external view returns (uint8);\n    function totalSupply() external view returns (uint);\n    function balanceOf(address owner) external view returns (uint);\n    function allowance(address owner, address spender) external view returns (uint);\n\n    function approve(address spender, uint value) external returns (bool);\n    function transfer(address to, uint value) external returns (bool);\n    function transferFrom(address from, address to, uint value) external returns (bool);\n}\n"
        },
        "@uniswap/v2-core/contracts/interfaces/IUniswapV2Callee.sol": {
          "content": "pragma solidity >=0.5.0;\n\ninterface IUniswapV2Callee {\n    function uniswapV2Call(address sender, uint amount0, uint amount1, bytes calldata data) external;\n}\n"
        },
        "@uniswap/v2-core/contracts/interfaces/IUniswapV2ERC20.sol": {
          "content": "pragma solidity >=0.5.0;\n\ninterface IUniswapV2ERC20 {\n    event Approval(address indexed owner, address indexed spender, uint value);\n    event Transfer(address indexed from, address indexed to, uint value);\n\n    function name() external pure returns (string memory);\n    function symbol() external pure returns (string memory);\n    function decimals() external pure returns (uint8);\n    function totalSupply() external view returns (uint);\n    function balanceOf(address owner) external view returns (uint);\n    function allowance(address owner, address spender) external view returns (uint);\n\n    function approve(address spender, uint value) external returns (bool);\n    function transfer(address to, uint value) external returns (bool);\n    function transferFrom(address from, address to, uint value) external returns (bool);\n\n    function DOMAIN_SEPARATOR() external view returns (bytes32);\n    function PERMIT_TYPEHASH() external pure returns (bytes32);\n    function nonces(address owner) external view returns (uint);\n\n    function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external;\n}\n"
        },
        "@uniswap/v2-core/contracts/interfaces/IUniswapV2Factory.sol": {
          "content": "pragma solidity >=0.5.0;\n\ninterface IUniswapV2Factory {\n    event PairCreated(address indexed token0, address indexed token1, address pair, uint);\n\n    function feeTo() external view returns (address);\n    function feeToSetter() external view returns (address);\n\n    function getPair(address tokenA, address tokenB) external view returns (address pair);\n    function allPairs(uint) external view returns (address pair);\n    function allPairsLength() external view returns (uint);\n\n    function createPair(address tokenA, address tokenB) external returns (address pair);\n\n    function setFeeTo(address) external;\n    function setFeeToSetter(address) external;\n}\n"
        },
        "@uniswap/v2-core/contracts/interfaces/IUniswapV2Pair.sol": {
          "content": "pragma solidity >=0.5.0;\n\ninterface IUniswapV2Pair {\n    event Approval(address indexed owner, address indexed spender, uint value);\n    event Transfer(address indexed from, address indexed to, uint value);\n\n    function name() external pure returns (string memory);\n    function symbol() external pure returns (string memory);\n    function decimals() external pure returns (uint8);\n    function totalSupply() external view returns (uint);\n    function balanceOf(address owner) external view returns (uint);\n    function allowance(address owner, address spender) external view returns (uint);\n\n    function approve(address spender, uint value) external returns (bool);\n    function transfer(address to, uint value) external returns (bool);\n    function transferFrom(address from, address to, uint value) external returns (bool);\n\n    function DOMAIN_SEPARATOR() external view returns (bytes32);\n    function PERMIT_TYPEHASH() external pure returns (bytes32);\n    function nonces(address owner) external view returns (uint);\n\n    function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external;\n\n    event Mint(address indexed sender, uint amount0, uint amount1);\n    event Burn(address indexed sender, uint amount0, uint amount1, address indexed to);\n    event Swap(\n        address indexed sender,\n        uint amount0In,\n        uint amount1In,\n        uint amount0Out,\n        uint amount1Out,\n        address indexed to\n    );\n    event Sync(uint112 reserve0, uint112 reserve1);\n\n    function MINIMUM_LIQUIDITY() external pure returns (uint);\n    function factory() external view returns (address);\n    function token0() external view returns (address);\n    function token1() external view returns (address);\n    function getReserves() external view returns (uint112 reserve0, uint112 reserve1, uint32 blockTimestampLast);\n    function price0CumulativeLast() external view returns (uint);\n    function price1CumulativeLast() external view returns (uint);\n    function kLast() external view returns (uint);\n\n    function mint(address to) external returns (uint liquidity);\n    function burn(address to) external returns (uint amount0, uint amount1);\n    function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external;\n    function skim(address to) external;\n    function sync() external;\n\n    function initialize(address, address) external;\n}\n"
        },
        "@uniswap/v2-periphery/contracts/interfaces/IERC20.sol": {
          "content": "pragma solidity >=0.5.0;\n\ninterface IERC20 {\n    event Approval(address indexed owner, address indexed spender, uint value);\n    event Transfer(address indexed from, address indexed to, uint value);\n\n    function name() external view returns (string memory);\n    function symbol() external view returns (string memory);\n    function decimals() external view returns (uint8);\n    function totalSupply() external view returns (uint);\n    function balanceOf(address owner) external view returns (uint);\n    function allowance(address owner, address spender) external view returns (uint);\n\n    function approve(address spender, uint value) external returns (bool);\n    function transfer(address to, uint value) external returns (bool);\n    function transferFrom(address from, address to, uint value) external returns (bool);\n}\n"
        },
        "@uniswap/v2-periphery/contracts/interfaces/IUniswapV2Router01.sol": {
          "content": "pragma solidity >=0.6.2;\n\ninterface IUniswapV2Router01 {\n    function factory() external pure returns (address);\n    function WETH() external pure returns (address);\n\n    function addLiquidity(\n        address tokenA,\n        address tokenB,\n        uint amountADesired,\n        uint amountBDesired,\n        uint amountAMin,\n        uint amountBMin,\n        address to,\n        uint deadline\n    ) external returns (uint amountA, uint amountB, uint liquidity);\n    function addLiquidityETH(\n        address token,\n        uint amountTokenDesired,\n        uint amountTokenMin,\n        uint amountETHMin,\n        address to,\n        uint deadline\n    ) external payable returns (uint amountToken, uint amountETH, uint liquidity);\n    function removeLiquidity(\n        address tokenA,\n        address tokenB,\n        uint liquidity,\n        uint amountAMin,\n        uint amountBMin,\n        address to,\n        uint deadline\n    ) external returns (uint amountA, uint amountB);\n    function removeLiquidityETH(\n        address token,\n        uint liquidity,\n        uint amountTokenMin,\n        uint amountETHMin,\n        address to,\n        uint deadline\n    ) external returns (uint amountToken, uint amountETH);\n    function removeLiquidityWithPermit(\n        address tokenA,\n        address tokenB,\n        uint liquidity,\n        uint amountAMin,\n        uint amountBMin,\n        address to,\n        uint deadline,\n        bool approveMax, uint8 v, bytes32 r, bytes32 s\n    ) external returns (uint amountA, uint amountB);\n    function removeLiquidityETHWithPermit(\n        address token,\n        uint liquidity,\n        uint amountTokenMin,\n        uint amountETHMin,\n        address to,\n        uint deadline,\n        bool approveMax, uint8 v, bytes32 r, bytes32 s\n    ) external returns (uint amountToken, uint amountETH);\n    function swapExactTokensForTokens(\n        uint amountIn,\n        uint amountOutMin,\n        address[] calldata path,\n        address to,\n        uint deadline\n    ) external returns (uint[] memory amounts);\n    function swapTokensForExactTokens(\n        uint amountOut,\n        uint amountInMax,\n        address[] calldata path,\n        address to,\n        uint deadline\n    ) external returns (uint[] memory amounts);\n    function swapExactETHForTokens(uint amountOutMin, address[] calldata path, address to, uint deadline)\n        external\n        payable\n        returns (uint[] memory amounts);\n    function swapTokensForExactETH(uint amountOut, uint amountInMax, address[] calldata path, address to, uint deadline)\n        external\n        returns (uint[] memory amounts);\n    function swapExactTokensForETH(uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline)\n        external\n        returns (uint[] memory amounts);\n    function swapETHForExactTokens(uint amountOut, address[] calldata path, address to, uint deadline)\n        external\n        payable\n        returns (uint[] memory amounts);\n\n    function quote(uint amountA, uint reserveA, uint reserveB) external pure returns (uint amountB);\n    function getAmountOut(uint amountIn, uint reserveIn, uint reserveOut) external pure returns (uint amountOut);\n    function getAmountIn(uint amountOut, uint reserveIn, uint reserveOut) external pure returns (uint amountIn);\n    function getAmountsOut(uint amountIn, address[] calldata path) external view returns (uint[] memory amounts);\n    function getAmountsIn(uint amountOut, address[] calldata path) external view returns (uint[] memory amounts);\n}\n"
        },
        "@uniswap/v2-periphery/contracts/interfaces/IUniswapV2Router02.sol": {
          "content": "pragma solidity >=0.6.2;\n\nimport './IUniswapV2Router01.sol';\n\ninterface IUniswapV2Router02 is IUniswapV2Router01 {\n    function removeLiquidityETHSupportingFeeOnTransferTokens(\n        address token,\n        uint liquidity,\n        uint amountTokenMin,\n        uint amountETHMin,\n        address to,\n        uint deadline\n    ) external returns (uint amountETH);\n    function removeLiquidityETHWithPermitSupportingFeeOnTransferTokens(\n        address token,\n        uint liquidity,\n        uint amountTokenMin,\n        uint amountETHMin,\n        address to,\n        uint deadline,\n        bool approveMax, uint8 v, bytes32 r, bytes32 s\n    ) external returns (uint amountETH);\n\n    function swapExactTokensForTokensSupportingFeeOnTransferTokens(\n        uint amountIn,\n        uint amountOutMin,\n        address[] calldata path,\n        address to,\n        uint deadline\n    ) external;\n    function swapExactETHForTokensSupportingFeeOnTransferTokens(\n        uint amountOutMin,\n        address[] calldata path,\n        address to,\n        uint deadline\n    ) external payable;\n    function swapExactTokensForETHSupportingFeeOnTransferTokens(\n        uint amountIn,\n        uint amountOutMin,\n        address[] calldata path,\n        address to,\n        uint deadline\n    ) external;\n}\n"
        },
        "@uniswap/v2-periphery/contracts/interfaces/IWETH.sol": {
          "content": "pragma solidity >=0.5.0;\n\ninterface IWETH {\n    function deposit() external payable;\n    function transfer(address to, uint value) external returns (bool);\n    function withdraw(uint) external;\n}\n"
        },
        "contracts/CookDEXLiquidityLocker.sol": {
          "content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.24;\n\nimport \"@openzeppelin/contracts/security/ReentrancyGuard.sol\";\nimport \"@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol\";\nimport \"@openzeppelin/contracts/token/ERC721/IERC721.sol\";\nimport \"@openzeppelin/contracts/token/ERC721/IERC721Receiver.sol\";\n\n/// @notice Non-custodial-by-rule time locks for V2 LP tokens and V3 position NFTs.\ncontract CookDEXLiquidityLocker is ReentrancyGuard, IERC721Receiver {\n    using SafeERC20 for IERC20;\n\n    address public constant BURN_ADDRESS = 0x000000000000000000000000000000000000dEaD;\n    uint256 public nextLockId = 1;\n\n    struct Lock {\n        address asset;\n        address beneficiary;\n        uint256 tokenId;\n        uint256 amount;\n        uint64 unlockTime;\n        bool isNFT;\n        bool released;\n    }\n\n    mapping(uint256 => Lock) public locks;\n\n    event LiquidityLocked(uint256 indexed lockId, address indexed asset, address indexed beneficiary, uint256 tokenId, uint256 amount, uint64 unlockTime, bool isNFT);\n    event LiquidityReleased(uint256 indexed lockId, address indexed beneficiary);\n    event LiquidityBurned(address indexed asset, address indexed owner, uint256 tokenId, uint256 amount, bool isNFT);\n\n    function lockERC20(address asset, uint256 amount, uint64 unlockTime, address beneficiary) external nonReentrant returns (uint256 lockId) {\n        require(asset != address(0) && beneficiary != address(0), \"ADDRESS_ZERO\");\n        require(amount > 0 && unlockTime > block.timestamp, \"LOCK_INVALID\");\n        IERC20(asset).safeTransferFrom(msg.sender, address(this), amount);\n        lockId = _store(asset, beneficiary, 0, amount, unlockTime, false);\n    }\n\n    function lockERC721(address asset, uint256 tokenId, uint64 unlockTime, address beneficiary) external nonReentrant returns (uint256 lockId) {\n        require(asset != address(0) && beneficiary != address(0), \"ADDRESS_ZERO\");\n        require(unlockTime > block.timestamp, \"LOCK_INVALID\");\n        IERC721(asset).safeTransferFrom(msg.sender, address(this), tokenId);\n        lockId = _store(asset, beneficiary, tokenId, 1, unlockTime, true);\n    }\n\n    function burnERC20(address asset, uint256 amount) external nonReentrant {\n        require(asset != address(0) && amount > 0, \"BURN_INVALID\");\n        IERC20(asset).safeTransferFrom(msg.sender, BURN_ADDRESS, amount);\n        emit LiquidityBurned(asset, msg.sender, 0, amount, false);\n    }\n\n    function burnERC721(address asset, uint256 tokenId) external nonReentrant {\n        require(asset != address(0), \"ASSET_ZERO\");\n        IERC721(asset).transferFrom(msg.sender, BURN_ADDRESS, tokenId);\n        emit LiquidityBurned(asset, msg.sender, tokenId, 1, true);\n    }\n\n    function release(uint256 lockId) external nonReentrant {\n        Lock storage item = locks[lockId];\n        require(!item.released && item.beneficiary == msg.sender, \"NOT_BENEFICIARY\");\n        require(block.timestamp >= item.unlockTime, \"LOCK_ACTIVE\");\n        item.released = true;\n        if (item.isNFT) IERC721(item.asset).safeTransferFrom(address(this), msg.sender, item.tokenId);\n        else IERC20(item.asset).safeTransfer(msg.sender, item.amount);\n        emit LiquidityReleased(lockId, msg.sender);\n    }\n\n    function onERC721Received(address, address, uint256, bytes calldata) external pure returns (bytes4) {\n        return IERC721Receiver.onERC721Received.selector;\n    }\n\n    function _store(address asset, address beneficiary, uint256 tokenId, uint256 amount, uint64 unlockTime, bool isNFT) internal returns (uint256 lockId) {\n        lockId = nextLockId++;\n        locks[lockId] = Lock(asset, beneficiary, tokenId, amount, unlockTime, isNFT, false);\n        emit LiquidityLocked(lockId, asset, beneficiary, tokenId, amount, unlockTime, isNFT);\n    }\n}\n"
        },
        "contracts/CookDEXPresaleExtensions.sol": {
          "content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.24;\n\nimport \"@openzeppelin/contracts/security/ReentrancyGuard.sol\";\nimport \"@openzeppelin/contracts/token/ERC20/IERC20.sol\";\nimport \"@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol\";\nimport \"@openzeppelin/contracts/utils/cryptography/MerkleProof.sol\";\n\ninterface ICookDEXReservedAirdrop {\n    function token() external view returns(IERC20);\n    function sourceCampaign() external view returns(address);\n    function totalAllocation() external view returns(uint256);\n    function claimStart() external view returns(uint64);\n}\ninterface ICookDEXRelativeAirdrop {\n    function token() external view returns(IERC20);\n    function sourceCampaign() external view returns(address);\n    function totalAllocation() external view returns(uint256);\n    function startOffset() external view returns(uint64);\n    function activate(uint64 anchor) external;\n}\n\n/// @notice Public multi-plan vesting vault. Team and investor plans are kept\n/// separate and remain readable after the related presale has ended.\ncontract CookDEXVestingVaultV1 is ReentrancyGuard {\n    using SafeERC20 for IERC20;\n    struct Plan { bytes32 label; uint64 start; uint64 cliff; uint64 duration; uint64 interval; uint16 tgeBps; uint256 allocated; bool relative; bool exists; }\n    struct Grant { uint256 allocation; uint256 claimed; }\n    struct AirdropReserve { uint256 amount; uint64 claimStart; uint64 startOffset; address airdrop; bool released; bool relative; bool exists; }\n\n    IERC20 public immutable token;\n    address public immutable sourceCampaign;\n    address public owner;\n    bool public vestingSealed;\n    uint256 public totalAllocated;\n    uint256 public totalClaimed;\n    uint256 public totalAirdropReleased;\n    Plan[] public plans;\n    mapping(uint256=>mapping(address=>Grant)) public grants;\n    mapping(bytes32=>AirdropReserve) public airdropReserves;\n    bytes32[] public airdropScheduleIds;\n    uint256 public airdropExecutionCursor;\n    uint256 public unboundAirdropCount;\n    uint64 public scheduleAnchor;\n    event PlanCreated(uint256 indexed planId,bytes32 indexed label,uint64 start,uint64 cliff,uint64 duration,uint64 interval,uint16 tgeBps);\n    event GrantAdded(uint256 indexed planId,address indexed beneficiary,uint256 amount);\n    event VestingSealed(uint256 totalAllocated);\n    event TokensClaimed(uint256 indexed planId,address indexed beneficiary,uint256 amount);\n    event OwnershipTransferred(address indexed previousOwner,address indexed nextOwner);\n    event AirdropReserved(bytes32 indexed scheduleId,uint256 amount,uint64 claimStart);\n    event AirdropReserveReleased(bytes32 indexed scheduleId,address indexed airdrop,uint256 amount);\n    event AirdropContractBound(bytes32 indexed scheduleId,address indexed airdrop);\n    event ScheduleAnchored(uint64 timestamp);\n\n    constructor(address token_,address campaign_,address owner_){require(token_!=address(0)&&owner_!=address(0),\"ADDRESS_ZERO\");token=IERC20(token_);sourceCampaign=campaign_;owner=owner_;}\n    modifier onlyOwner(){require(msg.sender==owner,\"NOT_OWNER\");_;}\n    modifier beforeSeal(){require(!vestingSealed,\"VESTING_SEALED\");_;}\n    function planCount() external view returns(uint256){return plans.length;}\n    function createPlan(bytes32 label,uint64 start,uint64 cliff,uint64 duration,uint64 interval,uint16 tgeBps) external onlyOwner beforeSeal returns(uint256 planId){\n        require(label!=bytes32(0)&&start>0&&duration>0&&interval>0&&interval<=duration&&tgeBps<=10_000,\"PLAN_INVALID\");\n        require(cliff<=3650 days&&duration<=7300 days,\"DURATION_INVALID\");\n        planId=plans.length;plans.push(Plan(label,start,cliff,duration,interval,tgeBps,0,false,true));emit PlanCreated(planId,label,start,cliff,duration,interval,tgeBps);\n    }\n    function createRelativePlan(bytes32 label,uint64 startOffset,uint64 cliff,uint64 duration,uint64 interval,uint16 tgeBps) external onlyOwner beforeSeal returns(uint256 planId){\n        require(label!=bytes32(0)&&startOffset<=3650 days&&duration>0&&interval>0&&interval<=duration&&tgeBps<=10_000,\"PLAN_INVALID\");require(cliff<=3650 days&&duration<=7300 days,\"DURATION_INVALID\");\n        planId=plans.length;plans.push(Plan(label,startOffset,cliff,duration,interval,tgeBps,0,true,true));emit PlanCreated(planId,label,startOffset,cliff,duration,interval,tgeBps);\n    }\n    function addGrants(uint256 planId,address[] calldata beneficiaries,uint256[] calldata amounts) external onlyOwner beforeSeal {\n        require(planId<plans.length&&beneficiaries.length>0&&beneficiaries.length==amounts.length&&beneficiaries.length<=250,\"GRANTS_INVALID\");\n        uint256 added;\n        for(uint256 i;i<beneficiaries.length;i++){address account=beneficiaries[i];uint256 amount=amounts[i];require(account!=address(0)&&amount>0&&grants[planId][account].allocation==0,\"GRANT_INVALID\");grants[planId][account].allocation=amount;added+=amount;emit GrantAdded(planId,account,amount);}\n        plans[planId].allocated+=added;totalAllocated+=added;\n    }\n    function reserveAirdrop(bytes32 scheduleId,uint256 amount,uint64 claimStart) external onlyOwner beforeSeal {\n        require(scheduleId!=bytes32(0)&&amount>0&&claimStart>block.timestamp&&!airdropReserves[scheduleId].exists,\"AIRDROP_RESERVE_INVALID\");\n        airdropReserves[scheduleId]=AirdropReserve(amount,claimStart,0,address(0),false,false,true);airdropScheduleIds.push(scheduleId);unboundAirdropCount++;totalAllocated+=amount;emit AirdropReserved(scheduleId,amount,claimStart);\n    }\n    function reserveRelativeAirdrop(bytes32 scheduleId,uint256 amount,uint64 startOffset) external onlyOwner beforeSeal {\n        require(scheduleId!=bytes32(0)&&amount>0&&startOffset<=7300 days&&!airdropReserves[scheduleId].exists,\"AIRDROP_RESERVE_INVALID\");\n        airdropReserves[scheduleId]=AirdropReserve(amount,0,startOffset,address(0),false,true,true);airdropScheduleIds.push(scheduleId);unboundAirdropCount++;totalAllocated+=amount;emit AirdropReserved(scheduleId,amount,startOffset);\n    }\n    function airdropScheduleCount() external view returns(uint256){return airdropScheduleIds.length;}\n    function bindAirdropContract(bytes32 scheduleId,address airdrop) external onlyOwner beforeSeal {\n        AirdropReserve storage reserve=airdropReserves[scheduleId];require(reserve.exists&&airdrop!=address(0)&&reserve.airdrop==address(0),\"AIRDROP_BIND_INVALID\");\n        if(reserve.relative){ICookDEXRelativeAirdrop target=ICookDEXRelativeAirdrop(airdrop);require(address(target.token())==address(token)&&target.sourceCampaign()==sourceCampaign&&target.totalAllocation()==reserve.amount&&target.startOffset()==reserve.startOffset,\"AIRDROP_MISMATCH\");}\n        else{ICookDEXReservedAirdrop target=ICookDEXReservedAirdrop(airdrop);require(address(target.token())==address(token)&&target.sourceCampaign()==sourceCampaign&&target.totalAllocation()==reserve.amount&&target.claimStart()==reserve.claimStart,\"AIRDROP_MISMATCH\");}\n        reserve.airdrop=airdrop;unboundAirdropCount--;emit AirdropContractBound(scheduleId,airdrop);\n    }\n    function seal() external onlyOwner beforeSeal {require(totalAllocated>0&&token.balanceOf(address(this))>=totalAllocated,\"FUNDING_LOW\");require(unboundAirdropCount==0,\"AIRDROP_UNBOUND\");vestingSealed=true;emit VestingSealed(totalAllocated);}\n    function vestedAmount(uint256 planId,address beneficiary,uint64 timestamp) public view returns(uint256){\n        require(planId<plans.length,\"PLAN_UNKNOWN\");Plan memory plan=plans[planId];uint256 allocation=grants[planId][beneficiary].allocation;uint64 start=plan.relative?(scheduleAnchor==0?type(uint64).max:scheduleAnchor+plan.start):plan.start;if(allocation==0||timestamp<start)return 0;\n        uint256 tge=allocation*plan.tgeBps/10_000;if(timestamp<start+plan.cliff)return tge;\n        uint256 elapsed=timestamp-(start+plan.cliff);if(elapsed>=plan.duration)return allocation;\n        elapsed=elapsed/plan.interval*plan.interval;return tge+(allocation-tge)*elapsed/plan.duration;\n    }\n    function claimable(uint256 planId,address beneficiary) public view returns(uint256){uint256 vested=vestedAmount(planId,beneficiary,uint64(block.timestamp));uint256 paid=grants[planId][beneficiary].claimed;return vested>paid?vested-paid:0;}\n    function claim(uint256 planId) external nonReentrant {require(vestingSealed,\"NOT_ACTIVE\");uint256 amount=claimable(planId,msg.sender);require(amount>0,\"NOTHING_TO_CLAIM\");grants[planId][msg.sender].claimed+=amount;totalClaimed+=amount;token.safeTransfer(msg.sender,amount);emit TokensClaimed(planId,msg.sender,amount);}\n    function anchorAfterPresale() public {\n        require(vestingSealed&&scheduleAnchor==0,\"ANCHOR_UNAVAILABLE\");\n        if(sourceCampaign!=address(0)){(bool ok,bytes memory value)=sourceCampaign.staticcall(abi.encodeWithSignature(\"finalized()\"));require(ok&&value.length>=32&&abi.decode(value,(bool)),\"PRESALE_NOT_FINALIZED\");}\n        scheduleAnchor=uint64(block.timestamp);emit ScheduleAnchored(scheduleAnchor);\n    }\n    function executeAirdropReserve(bytes32 scheduleId) public nonReentrant {\n        AirdropReserve storage reserve=airdropReserves[scheduleId];require(vestingSealed&&reserve.exists&&!reserve.released&&reserve.airdrop!=address(0),\"AIRDROP_RELEASE_INVALID\");\n        if(reserve.relative){require(scheduleAnchor!=0,\"SCHEDULE_NOT_ANCHORED\");ICookDEXRelativeAirdrop(reserve.airdrop).activate(scheduleAnchor);}\n        reserve.released=true;totalAirdropReleased+=reserve.amount;token.safeTransfer(reserve.airdrop,reserve.amount);emit AirdropReserveReleased(scheduleId,reserve.airdrop,reserve.amount);\n    }\n    function executeScheduledAirdrops(uint256 maxCount) external nonReentrant {\n        require(vestingSealed&&maxCount>0&&maxCount<=100,\"BATCH_INVALID\");uint256 cursor=airdropExecutionCursor;uint256 end=cursor+maxCount;if(end>airdropScheduleIds.length)end=airdropScheduleIds.length;\n        while(cursor<end){bytes32 scheduleId=airdropScheduleIds[cursor];AirdropReserve storage reserve=airdropReserves[scheduleId];if(!reserve.released&&reserve.airdrop!=address(0)){if(reserve.relative&&scheduleAnchor==0)break;if(reserve.relative)ICookDEXRelativeAirdrop(reserve.airdrop).activate(scheduleAnchor);reserve.released=true;totalAirdropReleased+=reserve.amount;token.safeTransfer(reserve.airdrop,reserve.amount);emit AirdropReserveReleased(scheduleId,reserve.airdrop,reserve.amount);}cursor++;}\n        airdropExecutionCursor=cursor;\n    }\n    function recoverExcess(address to,uint256 amount) external onlyOwner {require(to!=address(0),\"ADDRESS_ZERO\");uint256 reserved=totalAllocated-totalClaimed-totalAirdropReleased;uint256 balance=token.balanceOf(address(this));require(balance>=reserved&&amount<=balance-reserved,\"RESERVED_TOKENS\");token.safeTransfer(to,amount);}\n    function transferOwnership(address next) external onlyOwner {require(next!=address(0),\"ADDRESS_ZERO\");emit OwnershipTransferred(owner,next);owner=next;}\n}\n\ncontract CookDEXVestingModuleV1 {\n    event VestingVaultCreated(address indexed vault,address indexed token,address indexed owner,address sourceCampaign);\n    function createVesting(address token,address sourceCampaign) external returns(address vault){vault=address(new CookDEXVestingVaultV1(token,sourceCampaign,msg.sender));emit VestingVaultCreated(vault,token,msg.sender,sourceCampaign);}\n}\n\n/// @notice Claim-based airdrop. Eligibility modes (CSV, registration,\n/// historical holders, snapshot holders or deterministic random selection)\n/// are calculated off-chain and committed immutably through the Merkle root.\ncontract CookDEXAirdropV1 is ReentrancyGuard {\n    using SafeERC20 for IERC20;\n    IERC20 public immutable token;\n    address public immutable owner;\n    address public immutable sourceCampaign;\n    bytes32 public immutable merkleRoot;\n    bytes32 public immutable selectionCommitment;\n    uint8 public immutable eligibilityMode;\n    uint64 public immutable claimStart;\n    uint64 public immutable claimEnd;\n    uint256 public immutable totalAllocation;\n    uint256 public totalClaimed;\n    mapping(uint256=>uint256) private claimedBitMap;\n    event Claimed(uint256 indexed index,address indexed account,uint256 amount);\n    event UnclaimedRecovered(address indexed to,uint256 amount);\n    constructor(address token_,address owner_,address campaign_,bytes32 root_,bytes32 selectionCommitment_,uint8 mode_,uint64 start_,uint64 end_,uint256 total_){\n        require(token_!=address(0)&&owner_!=address(0)&&root_!=bytes32(0)&&start_<end_&&total_>0,\"CONFIG_INVALID\");\n        token=IERC20(token_);owner=owner_;sourceCampaign=campaign_;merkleRoot=root_;selectionCommitment=selectionCommitment_;eligibilityMode=mode_;claimStart=start_;claimEnd=end_;totalAllocation=total_;\n    }\n    function isClaimed(uint256 index) public view returns(bool){uint256 word=claimedBitMap[index/256];uint256 mask=1<<(index%256);return word&mask==mask;}\n    function claim(uint256 index,address account,uint256 amount,bytes32[] calldata proof) external nonReentrant {\n        require(block.timestamp>=claimStart&&block.timestamp<=claimEnd&&!isClaimed(index)&&account!=address(0),\"CLAIM_UNAVAILABLE\");\n        bytes32 leaf=keccak256(bytes.concat(keccak256(abi.encode(index,account,amount))));require(MerkleProof.verify(proof,merkleRoot,leaf),\"PROOF_INVALID\");\n        claimedBitMap[index/256]|=1<<(index%256);totalClaimed+=amount;require(totalClaimed<=totalAllocation,\"ALLOCATION_EXCEEDED\");token.safeTransfer(account,amount);emit Claimed(index,account,amount);\n    }\n    function recoverUnclaimed(address to) external nonReentrant {require(msg.sender==owner&&block.timestamp>claimEnd&&to!=address(0),\"RECOVERY_UNAVAILABLE\");uint256 amount=token.balanceOf(address(this));token.safeTransfer(to,amount);emit UnclaimedRecovered(to,amount);}\n}\n\n/// @notice Vesting-bound airdrop whose claim window is anchored to the actual\n/// presale finalization time. Only its immutable vesting vault may activate it.\ncontract CookDEXScheduledAirdropV1 is ReentrancyGuard {\n    using SafeERC20 for IERC20;\n    IERC20 public immutable token;\n    address public immutable owner;\n    address public immutable sourceCampaign;\n    address public immutable vestingVault;\n    bytes32 public immutable merkleRoot;\n    bytes32 public immutable selectionCommitment;\n    uint8 public immutable eligibilityMode;\n    uint64 public immutable startOffset;\n    uint64 public immutable claimDuration;\n    uint256 public immutable totalAllocation;\n    uint64 public claimStart;\n    uint64 public claimEnd;\n    uint256 public totalClaimed;\n    mapping(uint256=>uint256) private claimedBitMap;\n    event Activated(uint64 indexed anchor,uint64 claimStart,uint64 claimEnd);\n    event Claimed(uint256 indexed index,address indexed account,uint256 amount);\n    event UnclaimedRecovered(address indexed to,uint256 amount);\n    constructor(address token_,address owner_,address campaign_,address vault_,bytes32 root_,bytes32 commitment_,uint8 mode_,uint64 offset_,uint64 duration_,uint256 total_){\n        require(token_!=address(0)&&owner_!=address(0)&&vault_!=address(0)&&root_!=bytes32(0)&&duration_>0&&total_>0,\"CONFIG_INVALID\");\n        token=IERC20(token_);owner=owner_;sourceCampaign=campaign_;vestingVault=vault_;merkleRoot=root_;selectionCommitment=commitment_;eligibilityMode=mode_;startOffset=offset_;claimDuration=duration_;totalAllocation=total_;\n    }\n    function activate(uint64 anchor) external {require(msg.sender==vestingVault&&claimStart==0&&anchor>0,\"ACTIVATION_UNAVAILABLE\");claimStart=anchor+startOffset;claimEnd=claimStart+claimDuration;emit Activated(anchor,claimStart,claimEnd);}\n    function isClaimed(uint256 index) public view returns(bool){uint256 word=claimedBitMap[index/256];uint256 mask=1<<(index%256);return word&mask==mask;}\n    function claim(uint256 index,address account,uint256 amount,bytes32[] calldata proof) external nonReentrant {\n        require(claimStart>0&&block.timestamp>=claimStart&&block.timestamp<=claimEnd&&!isClaimed(index)&&account!=address(0),\"CLAIM_UNAVAILABLE\");\n        bytes32 leaf=keccak256(bytes.concat(keccak256(abi.encode(index,account,amount))));require(MerkleProof.verify(proof,merkleRoot,leaf),\"PROOF_INVALID\");\n        claimedBitMap[index/256]|=1<<(index%256);totalClaimed+=amount;require(totalClaimed<=totalAllocation,\"ALLOCATION_EXCEEDED\");token.safeTransfer(account,amount);emit Claimed(index,account,amount);\n    }\n    function recoverUnclaimed(address to) external nonReentrant {require(msg.sender==owner&&claimEnd>0&&block.timestamp>claimEnd&&to!=address(0),\"RECOVERY_UNAVAILABLE\");uint256 amount=token.balanceOf(address(this));token.safeTransfer(to,amount);emit UnclaimedRecovered(to,amount);}\n}\n\ncontract CookDEXAirdropModuleV1 {\n    event AirdropCreated(address indexed airdrop,address indexed token,address indexed owner,address sourceCampaign,uint8 mode);\n    function createAirdrop(address token,address sourceCampaign,bytes32 root,bytes32 selectionCommitment,uint8 mode,uint64 start,uint64 end,uint256 totalAllocation) external returns(address airdrop){\n        airdrop=address(new CookDEXAirdropV1(token,msg.sender,sourceCampaign,root,selectionCommitment,mode,start,end,totalAllocation));emit AirdropCreated(airdrop,token,msg.sender,sourceCampaign,mode);\n    }\n    function createScheduledAirdrop(address token,address sourceCampaign,address vestingVault,bytes32 root,bytes32 selectionCommitment,uint8 mode,uint64 startOffset,uint64 claimDuration,uint256 totalAllocation) external returns(address airdrop){\n        airdrop=address(new CookDEXScheduledAirdropV1(token,msg.sender,sourceCampaign,vestingVault,root,selectionCommitment,mode,startOffset,claimDuration,totalAllocation));emit AirdropCreated(airdrop,token,msg.sender,sourceCampaign,mode);\n    }\n}\n"
        },
        "contracts/CookDEXV2FeeVault.sol": {
          "content": "// SPDX-License-Identifier: GPL-2.0-or-later\npragma solidity ^0.8.24;\n\nimport \"@openzeppelin/contracts/access/Ownable2Step.sol\";\nimport \"@openzeppelin/contracts/security/ReentrancyGuard.sol\";\nimport \"@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol\";\n\ninterface ICookDEXV2Factory {\n    function getPair(address tokenA, address tokenB) external view returns (address);\n}\n\ninterface ICookDEXV2Pair is IERC20 {\n    function token0() external view returns (address);\n    function token1() external view returns (address);\n}\n\n/// @notice Distributes V2 protocol LP tokens without changing the V2 pair ABI.\n/// @dev The factory feeTo must point at this vault. LP trading fees remain in\n///      pool reserves; only protocol LP minted by the standard V2 pair is split.\ncontract CookDEXV2FeeVault is Ownable2Step, ReentrancyGuard {\n    using SafeERC20 for IERC20;\n\n    uint16 public constant BPS = 10_000;\n    ICookDEXV2Factory public immutable factory;\n    address public adminWallet;\n    address public treasuryWallet;\n    uint16 public adminShareBps = 5_000;\n    uint16 public controllerShareBps = 3_000;\n    uint16 public treasuryShareBps = 2_000;\n\n    mapping(address => address) public poolController;\n    mapping(address => uint256) public distributedProtocolLiquidity;\n\n    event WalletsChanged(address indexed adminWallet, address indexed treasuryWallet);\n    event FeeSplitChanged(uint16 adminShareBps, uint16 controllerShareBps, uint16 treasuryShareBps);\n    event PoolControllerChanged(address indexed pair, address indexed previousController, address indexed controller);\n    event ProtocolFeesDistributed(address indexed pair, uint256 total, uint256 adminAmount, uint256 controllerAmount, uint256 treasuryAmount);\n\n    constructor(address factory_, address owner_, address adminWallet_, address treasuryWallet_) {\n        require(factory_ != address(0), \"FACTORY_ZERO\");\n        factory = ICookDEXV2Factory(factory_);\n        _transferOwnership(owner_);\n        _setWallets(adminWallet_, treasuryWallet_);\n    }\n\n    /// @notice Lets the initial majority LP provider register as controller.\n    function registerPoolController(address pair) external {\n        require(poolController[pair] == address(0), \"CONTROLLER_SET\");\n        ICookDEXV2Pair candidate = ICookDEXV2Pair(pair);\n        require(factory.getPair(candidate.token0(), candidate.token1()) == pair, \"FOREIGN_PAIR\");\n        uint256 supply = candidate.totalSupply();\n        require(supply > 0 && candidate.balanceOf(msg.sender) * 2 >= supply, \"NOT_MAJORITY_LP\");\n        _setPoolController(pair, msg.sender);\n    }\n\n    function setPoolController(address pair, address controller) external {\n        require(msg.sender == owner() || msg.sender == poolController[pair], \"NOT_AUTHORIZED\");\n        _validatePair(pair);\n        _setPoolController(pair, controller);\n    }\n\n    function setWallets(address adminWallet_, address treasuryWallet_) external onlyOwner {\n        _setWallets(adminWallet_, treasuryWallet_);\n    }\n\n    function setFeeSplit(uint16 adminBps, uint16 controllerBps, uint16 treasuryBps) external onlyOwner {\n        require(uint256(adminBps) + controllerBps + treasuryBps == BPS, \"SPLIT_TOTAL\");\n        adminShareBps = adminBps;\n        controllerShareBps = controllerBps;\n        treasuryShareBps = treasuryBps;\n        emit FeeSplitChanged(adminBps, controllerBps, treasuryBps);\n    }\n\n    function claimable(address pair) public view returns (uint256) {\n        return IERC20(pair).balanceOf(address(this));\n    }\n\n    function distribute(address pair) external nonReentrant returns (uint256 total) {\n        _validatePair(pair);\n        address controller = poolController[pair];\n        require(controller != address(0), \"CONTROLLER_MISSING\");\n        total = claimable(pair);\n        require(total > 0, \"NO_PROTOCOL_FEES\");\n\n        uint256 adminAmount = total * adminShareBps / BPS;\n        uint256 controllerAmount = total * controllerShareBps / BPS;\n        uint256 treasuryAmount = total - adminAmount - controllerAmount;\n        IERC20 lp = IERC20(pair);\n        if (adminAmount > 0) lp.safeTransfer(adminWallet, adminAmount);\n        if (controllerAmount > 0) lp.safeTransfer(controller, controllerAmount);\n        if (treasuryAmount > 0) lp.safeTransfer(treasuryWallet, treasuryAmount);\n        distributedProtocolLiquidity[pair] += total;\n        emit ProtocolFeesDistributed(pair, total, adminAmount, controllerAmount, treasuryAmount);\n    }\n\n    function _validatePair(address pair) internal view {\n        require(pair != address(0), \"PAIR_ZERO\");\n        ICookDEXV2Pair candidate = ICookDEXV2Pair(pair);\n        require(factory.getPair(candidate.token0(), candidate.token1()) == pair, \"FOREIGN_PAIR\");\n    }\n\n    function _setPoolController(address pair, address controller) internal {\n        require(controller != address(0), \"CONTROLLER_ZERO\");\n        address previous = poolController[pair];\n        poolController[pair] = controller;\n        emit PoolControllerChanged(pair, previous, controller);\n    }\n\n    function _setWallets(address adminWallet_, address treasuryWallet_) internal {\n        require(adminWallet_ != address(0) && treasuryWallet_ != address(0), \"WALLET_ZERO\");\n        adminWallet = adminWallet_;\n        treasuryWallet = treasuryWallet_;\n        emit WalletsChanged(adminWallet_, treasuryWallet_);\n    }\n}\n"
        },
        "contracts/CookDEXV3FeeManager.sol": {
          "content": "// SPDX-License-Identifier: GPL-2.0-or-later\npragma solidity ^0.8.24;\n\nimport \"@openzeppelin/contracts/access/Ownable2Step.sol\";\nimport \"@openzeppelin/contracts/security/ReentrancyGuard.sol\";\nimport \"@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol\";\n\ninterface ICookDEXV3Factory {\n    function getPool(address tokenA, address tokenB, uint24 fee) external view returns (address);\n    function setOwner(address owner) external;\n}\n\ninterface ICookDEXV3Pool {\n    function token0() external view returns (address);\n    function token1() external view returns (address);\n    function fee() external view returns (uint24);\n    function setFeeProtocol(uint8 feeProtocol0, uint8 feeProtocol1) external;\n    function collectProtocol(address recipient, uint128 amount0Requested, uint128 amount1Requested)\n        external returns (uint128 amount0, uint128 amount1);\n}\n\ninterface ICookDEXV3PositionManager {\n    function ownerOf(uint256 tokenId) external view returns (address);\n    function positions(uint256 tokenId) external view returns (\n        uint96 nonce,\n        address operator,\n        address token0,\n        address token1,\n        uint24 fee,\n        int24 tickLower,\n        int24 tickUpper,\n        uint128 liquidity,\n        uint256 feeGrowthInside0LastX128,\n        uint256 feeGrowthInside1LastX128,\n        uint128 tokensOwed0,\n        uint128 tokensOwed1\n    );\n}\n\n/// @notice Owns the V3 factory, collects protocol fees and applies CookDEX's split.\ncontract CookDEXV3FeeManager is Ownable2Step, ReentrancyGuard {\n    using SafeERC20 for IERC20;\n\n    uint16 public constant BPS = 10_000;\n    ICookDEXV3Factory public immutable factory;\n    ICookDEXV3PositionManager public immutable positionManager;\n    address public adminWallet;\n    address public treasuryWallet;\n    uint16 public adminShareBps = 5_000;\n    uint16 public controllerShareBps = 3_000;\n    uint16 public treasuryShareBps = 2_000;\n    uint8 public defaultProtocolFee0 = 4;\n    uint8 public defaultProtocolFee1 = 4;\n    mapping(address => address) public poolController;\n\n    event WalletsChanged(address indexed adminWallet, address indexed treasuryWallet);\n    event FeeSplitChanged(uint16 adminShareBps, uint16 controllerShareBps, uint16 treasuryShareBps);\n    event PoolControllerChanged(address indexed pool, address indexed previousController, address indexed controller);\n    event ProtocolFeesDistributed(address indexed pool, address token0, address token1, uint256 amount0, uint256 amount1);\n    event DefaultProtocolFeeChanged(uint8 token0Fee, uint8 token1Fee);\n\n    constructor(address factory_, address positionManager_, address owner_, address adminWallet_, address treasuryWallet_) {\n        require(factory_ != address(0) && positionManager_ != address(0), \"CONFIG_ZERO\");\n        factory = ICookDEXV3Factory(factory_);\n        positionManager = ICookDEXV3PositionManager(positionManager_);\n        _transferOwnership(owner_);\n        _setWallets(adminWallet_, treasuryWallet_);\n    }\n\n    function registerPoolController(uint256 positionTokenId) external {\n        require(positionManager.ownerOf(positionTokenId) == msg.sender, \"NOT_POSITION_OWNER\");\n        (,, address token0, address token1, uint24 fee,,,,,,,) = positionManager.positions(positionTokenId);\n        address pool = factory.getPool(token0, token1, fee);\n        require(pool != address(0), \"POOL_MISSING\");\n        require(poolController[pool] == address(0), \"CONTROLLER_SET\");\n        _setPoolController(pool, msg.sender);\n        ICookDEXV3Pool(pool).setFeeProtocol(defaultProtocolFee0, defaultProtocolFee1);\n    }\n\n    function setPoolController(address pool, address controller) external {\n        require(msg.sender == owner() || msg.sender == poolController[pool], \"NOT_AUTHORIZED\");\n        _validatePool(pool);\n        _setPoolController(pool, controller);\n    }\n\n    function configurePoolProtocolFee(address pool, uint8 token0Fee, uint8 token1Fee) external onlyOwner {\n        _validatePool(pool);\n        ICookDEXV3Pool(pool).setFeeProtocol(token0Fee, token1Fee);\n    }\n\n    function setDefaultProtocolFee(uint8 token0Fee, uint8 token1Fee) external onlyOwner {\n        require(_validProtocolFee(token0Fee) && _validProtocolFee(token1Fee), \"PROTOCOL_FEE\");\n        defaultProtocolFee0 = token0Fee;\n        defaultProtocolFee1 = token1Fee;\n        emit DefaultProtocolFeeChanged(token0Fee, token1Fee);\n    }\n\n    function collectAndDistribute(address pool) external nonReentrant returns (uint128 amount0, uint128 amount1) {\n        _validatePool(pool);\n        address controller = poolController[pool];\n        require(controller != address(0), \"CONTROLLER_MISSING\");\n        ICookDEXV3Pool candidate = ICookDEXV3Pool(pool);\n        address token0 = candidate.token0();\n        address token1 = candidate.token1();\n        (amount0, amount1) = candidate.collectProtocol(address(this), type(uint128).max, type(uint128).max);\n        require(amount0 > 0 || amount1 > 0, \"NO_PROTOCOL_FEES\");\n        _splitToken(token0, amount0, controller);\n        _splitToken(token1, amount1, controller);\n        emit ProtocolFeesDistributed(pool, token0, token1, amount0, amount1);\n    }\n\n    function setWallets(address adminWallet_, address treasuryWallet_) external onlyOwner {\n        _setWallets(adminWallet_, treasuryWallet_);\n    }\n\n    function setFeeSplit(uint16 adminBps, uint16 controllerBps, uint16 treasuryBps) external onlyOwner {\n        require(uint256(adminBps) + controllerBps + treasuryBps == BPS, \"SPLIT_TOTAL\");\n        adminShareBps = adminBps;\n        controllerShareBps = controllerBps;\n        treasuryShareBps = treasuryBps;\n        emit FeeSplitChanged(adminBps, controllerBps, treasuryBps);\n    }\n\n    function transferFactoryOwnership(address newOwner) external onlyOwner {\n        require(newOwner != address(0), \"OWNER_ZERO\");\n        factory.setOwner(newOwner);\n    }\n\n    function _splitToken(address token, uint256 amount, address controller) internal {\n        if (amount == 0) return;\n        uint256 adminAmount = amount * adminShareBps / BPS;\n        uint256 controllerAmount = amount * controllerShareBps / BPS;\n        uint256 treasuryAmount = amount - adminAmount - controllerAmount;\n        IERC20 asset = IERC20(token);\n        if (adminAmount > 0) asset.safeTransfer(adminWallet, adminAmount);\n        if (controllerAmount > 0) asset.safeTransfer(controller, controllerAmount);\n        if (treasuryAmount > 0) asset.safeTransfer(treasuryWallet, treasuryAmount);\n    }\n\n    function _validatePool(address pool) internal view {\n        require(pool != address(0), \"POOL_ZERO\");\n        ICookDEXV3Pool candidate = ICookDEXV3Pool(pool);\n        require(factory.getPool(candidate.token0(), candidate.token1(), candidate.fee()) == pool, \"FOREIGN_POOL\");\n    }\n\n    function _setPoolController(address pool, address controller) internal {\n        require(controller != address(0), \"CONTROLLER_ZERO\");\n        address previous = poolController[pool];\n        poolController[pool] = controller;\n        emit PoolControllerChanged(pool, previous, controller);\n    }\n\n    function _setWallets(address adminWallet_, address treasuryWallet_) internal {\n        require(adminWallet_ != address(0) && treasuryWallet_ != address(0), \"WALLET_ZERO\");\n        adminWallet = adminWallet_;\n        treasuryWallet = treasuryWallet_;\n        emit WalletsChanged(adminWallet_, treasuryWallet_);\n    }\n\n    function _validProtocolFee(uint8 value) internal pure returns (bool) {\n        return value == 0 || (value >= 4 && value <= 10);\n    }\n}\n"
        },
        "contracts/test/MockLayerZeroEndpointV2.sol": {
          "content": "// SPDX-License-Identifier: MIT\npragma solidity 0.8.24;\n\ncontract MockLayerZeroEndpointV2 {\n    mapping(address => address) public delegates;\n\n    function setDelegate(address delegate_) external {\n        delegates[msg.sender] = delegate_;\n    }\n}\n"
        },
        "contracts/test/MockLiquidityAssets.sol": {
          "content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.24;\n\nimport \"@openzeppelin/contracts/token/ERC20/ERC20.sol\";\nimport \"@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol\";\nimport \"@openzeppelin/contracts/token/ERC721/ERC721.sol\";\n\ncontract MockLPToken is ERC20 {\n    constructor() ERC20(\"Mock LP\", \"MLP\") { _mint(msg.sender, 1_000_000 ether); }\n}\n\ncontract MockPositionNFT is ERC721 {\n    constructor() ERC721(\"Mock Position\", \"MPOS\") {}\n    function mint(address to, uint256 tokenId) external { _mint(to, tokenId); }\n}\n\ncontract MockSwapToken is ERC20 {\n    constructor(string memory name_, string memory symbol_) ERC20(name_, symbol_) {}\n    function mint(address to, uint256 amount) external { _mint(to, amount); }\n}\n\ncontract MockLimitV2Router {\n    using SafeERC20 for IERC20;\n\n    function swapExactTokensForTokensSupportingFeeOnTransferTokens(\n        uint256 amountIn,\n        uint256 amountOutMin,\n        address[] calldata path,\n        address to,\n        uint256\n    ) external {\n        IERC20(path[0]).safeTransferFrom(msg.sender, address(this), amountIn);\n        uint256 amountOut = amountIn * 2;\n        require(amountOut >= amountOutMin, \"OUTPUT_LOW\");\n        IERC20(path[path.length - 1]).safeTransfer(to, amountOut);\n    }\n}\n"
        },
        "contracts/test/MockPresaleDex.sol": {
          "content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.24;\n\nimport \"@openzeppelin/contracts/token/ERC20/ERC20.sol\";\nimport \"@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol\";\n\ncontract MockPresaleLP is ERC20 {\n    constructor() ERC20(\"Presale LP\", \"PLP\") {}\n    function mint(address to, uint256 amount) external { _mint(to, amount); }\n}\n\ncontract MockPresaleWETH is ERC20 {\n    constructor() ERC20(\"Wrapped Native\", \"WNATIVE\") {}\n    function deposit() external payable { _mint(msg.sender, msg.value); }\n}\n\ncontract MockPresaleV2Factory {\n    address public pair;\n    function setPair(address value) external { pair = value; }\n    function getPair(address, address) external view returns (address) { return pair; }\n}\n\ncontract MockPresaleV2Router {\n    using SafeERC20 for IERC20;\n    address public immutable factory;\n    constructor(address factory_) { factory = factory_; }\n    function addLiquidityETH(address token, uint256 tokenDesired, uint256, uint256, address to, uint256)\n        external payable returns (uint256, uint256, uint256 liquidity)\n    {\n        IERC20(token).safeTransferFrom(msg.sender, address(this), tokenDesired);\n        liquidity = msg.value < tokenDesired ? msg.value : tokenDesired;\n        MockPresaleLP(MockPresaleV2Factory(factory).pair()).mint(to, liquidity);\n        return (tokenDesired, msg.value, liquidity);\n    }\n}\n"
        },
        "contracts/tokens/CookDEXPresaleToken.sol": {
          "content": "// SPDX-License-Identifier: MIT\npragma solidity 0.8.24;\n\nimport \"@openzeppelin/contracts/token/ERC20/ERC20.sol\";\nimport \"@openzeppelin/contracts/access/AccessControl.sol\";\n\n/// @notice Token template for presales with selectable decimals and a\n/// separately revocable mint role for optional staking rewards.\ncontract CookDEXPresaleToken is ERC20, AccessControl {\n    bytes32 public constant MINTER_ROLE = keccak256(\"MINTER_ROLE\");\n    uint8 private immutable _tokenDecimals;\n    uint256 public immutable maxSupply;\n    string public constant createdBy = \"CookDEX\";\n    string public constant tokenTemplate = \"CookDEX Presale Token\";\n\n    constructor(\n        string memory name_,\n        string memory symbol_,\n        uint8 decimals_,\n        uint256 initialSupply_,\n        uint256 maxSupply_,\n        address recipient_,\n        address payable platformFeeReceiver_,\n        uint256 requiredPlatformFee_\n    ) payable ERC20(name_, symbol_) {\n        require(recipient_ != address(0), \"RECIPIENT_ZERO\");\n        require(decimals_ >= 6 && decimals_ <= 18, \"DECIMALS_INVALID\");\n        require(initialSupply_ > 0 && maxSupply_ >= initialSupply_, \"SUPPLY_INVALID\");\n        require(msg.value == requiredPlatformFee_, \"FEE_INVALID\");\n        _tokenDecimals = decimals_;\n        maxSupply = maxSupply_ * 10 ** decimals_;\n        _grantRole(DEFAULT_ADMIN_ROLE, recipient_);\n        _mint(recipient_, initialSupply_ * 10 ** decimals_);\n        if(requiredPlatformFee_>0){(bool paid,)=platformFeeReceiver_.call{value:requiredPlatformFee_}(\"\");require(paid,\"FEE_FAILED\");}\n    }\n\n    function decimals() public view override returns (uint8) { return _tokenDecimals; }\n\n    function mint(address to, uint256 amount) external onlyRole(MINTER_ROLE) {\n        require(to != address(0) && totalSupply() + amount <= maxSupply, \"MINT_INVALID\");\n        _mint(to, amount);\n    }\n\n}\n"
        },
        "contracts/tokens/CookDEXStandardToken.sol": {
          "content": "// SPDX-License-Identifier: MIT\npragma solidity 0.8.24;\n\nimport \"@openzeppelin/contracts/token/ERC20/ERC20.sol\";\nimport \"@openzeppelin/contracts/access/Ownable.sol\";\n\ncontract CookDEXStandardToken is ERC20, Ownable {\n    string public createdBy;\n    string public tokenTemplate;\n    string public creatorInformation;\n\n    constructor(\n        string memory name_,\n        string memory symbol_,\n        uint256 supply_,\n        address recipient_,\n        string memory creatorInformation_,\n        bool whiteLabel_,\n        address payable platformFeeReceiver_,\n        uint256 requiredPlatformFee_\n    ) payable ERC20(name_, symbol_) {\n        require(recipient_ != address(0), \"Invalid recipient\");\n        require(supply_ > 0, \"Supply is zero\");\n        require(msg.value == requiredPlatformFee_, \"Incorrect platform fee\");\n        creatorInformation = creatorInformation_;\n        createdBy = whiteLabel_ ? \"\" : \"CookDEX\";\n        tokenTemplate = whiteLabel_ ? \"\" : \"CookDEX Standard Token\";\n        _mint(recipient_, supply_ * 10 ** decimals());\n        _transferOwnership(recipient_);\n        if (requiredPlatformFee_ > 0) {\n            (bool paid, ) = platformFeeReceiver_.call{value: requiredPlatformFee_}(\"\");\n            require(paid, \"Platform fee failed\");\n        }\n    }\n}\n"
        },
        "contracts/tokens/CookDEXTokenDeployer.sol": {
          "content": "// SPDX-License-Identifier: MIT\npragma solidity 0.8.24;\n\n/// @notice Deterministic CREATE3 deployment for CookDEX token templates.\n/// @dev The caller is part of the salt namespace, so one user cannot reserve\n///      another user's token address.\ncontract CookDEXTokenDeployer {\n    bytes private constant PROXY_BYTECODE = hex\"67363d3d37363d34f03d5260086018f3\";\n    bytes32 private constant PROXY_BYTECODE_HASH = keccak256(PROXY_BYTECODE);\n\n    event ContractDeployed(address indexed creator, bytes32 indexed salt, address indexed deployed);\n\n    function deploy(bytes32 salt, bytes calldata creationCode) external payable returns (address deployed) {\n        require(creationCode.length != 0, \"Empty creation code\");\n        bytes32 namespacedSalt = keccak256(abi.encodePacked(msg.sender, salt));\n        address proxy;\n        bytes memory proxyBytecode = PROXY_BYTECODE;\n        assembly {\n            proxy := create2(0, add(proxyBytecode, 0x20), mload(proxyBytecode), namespacedSalt)\n        }\n        require(proxy != address(0), \"Salt already used\");\n        (bool success, ) = proxy.call{value: msg.value}(creationCode);\n        require(success, \"Deployment failed\");\n        deployed = getDeployed(msg.sender, salt);\n        require(deployed.code.length != 0, \"No contract deployed\");\n        emit ContractDeployed(msg.sender, salt, deployed);\n    }\n\n    function getDeployed(address creator, bytes32 salt) public view returns (address deployed) {\n        bytes32 namespacedSalt = keccak256(abi.encodePacked(creator, salt));\n        address proxy = address(uint160(uint256(keccak256(abi.encodePacked(\n            bytes1(0xff), address(this), namespacedSalt, PROXY_BYTECODE_HASH\n        )))));\n        deployed = address(uint160(uint256(keccak256(abi.encodePacked(hex\"d694\", proxy, hex\"01\")))));\n    }\n}\n"
        }
      },
      "settings": {
        "optimizer": {
          "enabled": true,
          "runs": 10000
        },
        "evmVersion": "paris",
        "outputSelection": {
          "contracts/CookDEXV2FeeVault.sol": {
            "CookDEXV2FeeVault": [
              "abi",
              "metadata",
              "evm.bytecode",
              "evm.deployedBytecode"
            ]
          }
        }
      }
    },
    "metadata": {
      "compiler": {
        "version": "0.8.24+commit.e11b9ed9"
      },
      "language": "Solidity",
      "output": {
        "abi": [
          {
            "inputs": [
              {
                "internalType": "address",
                "name": "factory_",
                "type": "address"
              },
              {
                "internalType": "address",
                "name": "owner_",
                "type": "address"
              },
              {
                "internalType": "address",
                "name": "adminWallet_",
                "type": "address"
              },
              {
                "internalType": "address",
                "name": "treasuryWallet_",
                "type": "address"
              }
            ],
            "stateMutability": "nonpayable",
            "type": "constructor"
          },
          {
            "anonymous": false,
            "inputs": [
              {
                "indexed": false,
                "internalType": "uint16",
                "name": "adminShareBps",
                "type": "uint16"
              },
              {
                "indexed": false,
                "internalType": "uint16",
                "name": "controllerShareBps",
                "type": "uint16"
              },
              {
                "indexed": false,
                "internalType": "uint16",
                "name": "treasuryShareBps",
                "type": "uint16"
              }
            ],
            "name": "FeeSplitChanged",
            "type": "event"
          },
          {
            "anonymous": false,
            "inputs": [
              {
                "indexed": true,
                "internalType": "address",
                "name": "previousOwner",
                "type": "address"
              },
              {
                "indexed": true,
                "internalType": "address",
                "name": "newOwner",
                "type": "address"
              }
            ],
            "name": "OwnershipTransferStarted",
            "type": "event"
          },
          {
            "anonymous": false,
            "inputs": [
              {
                "indexed": true,
                "internalType": "address",
                "name": "previousOwner",
                "type": "address"
              },
              {
                "indexed": true,
                "internalType": "address",
                "name": "newOwner",
                "type": "address"
              }
            ],
            "name": "OwnershipTransferred",
            "type": "event"
          },
          {
            "anonymous": false,
            "inputs": [
              {
                "indexed": true,
                "internalType": "address",
                "name": "pair",
                "type": "address"
              },
              {
                "indexed": true,
                "internalType": "address",
                "name": "previousController",
                "type": "address"
              },
              {
                "indexed": true,
                "internalType": "address",
                "name": "controller",
                "type": "address"
              }
            ],
            "name": "PoolControllerChanged",
            "type": "event"
          },
          {
            "anonymous": false,
            "inputs": [
              {
                "indexed": true,
                "internalType": "address",
                "name": "pair",
                "type": "address"
              },
              {
                "indexed": false,
                "internalType": "uint256",
                "name": "total",
                "type": "uint256"
              },
              {
                "indexed": false,
                "internalType": "uint256",
                "name": "adminAmount",
                "type": "uint256"
              },
              {
                "indexed": false,
                "internalType": "uint256",
                "name": "controllerAmount",
                "type": "uint256"
              },
              {
                "indexed": false,
                "internalType": "uint256",
                "name": "treasuryAmount",
                "type": "uint256"
              }
            ],
            "name": "ProtocolFeesDistributed",
            "type": "event"
          },
          {
            "anonymous": false,
            "inputs": [
              {
                "indexed": true,
                "internalType": "address",
                "name": "adminWallet",
                "type": "address"
              },
              {
                "indexed": true,
                "internalType": "address",
                "name": "treasuryWallet",
                "type": "address"
              }
            ],
            "name": "WalletsChanged",
            "type": "event"
          },
          {
            "inputs": [],
            "name": "BPS",
            "outputs": [
              {
                "internalType": "uint16",
                "name": "",
                "type": "uint16"
              }
            ],
            "stateMutability": "view",
            "type": "function"
          },
          {
            "inputs": [],
            "name": "acceptOwnership",
            "outputs": [],
            "stateMutability": "nonpayable",
            "type": "function"
          },
          {
            "inputs": [],
            "name": "adminShareBps",
            "outputs": [
              {
                "internalType": "uint16",
                "name": "",
                "type": "uint16"
              }
            ],
            "stateMutability": "view",
            "type": "function"
          },
          {
            "inputs": [],
            "name": "adminWallet",
            "outputs": [
              {
                "internalType": "address",
                "name": "",
                "type": "address"
              }
            ],
            "stateMutability": "view",
            "type": "function"
          },
          {
            "inputs": [
              {
                "internalType": "address",
                "name": "pair",
                "type": "address"
              }
            ],
            "name": "claimable",
            "outputs": [
              {
                "internalType": "uint256",
                "name": "",
                "type": "uint256"
              }
            ],
            "stateMutability": "view",
            "type": "function"
          },
          {
            "inputs": [],
            "name": "controllerShareBps",
            "outputs": [
              {
                "internalType": "uint16",
                "name": "",
                "type": "uint16"
              }
            ],
            "stateMutability": "view",
            "type": "function"
          },
          {
            "inputs": [
              {
                "internalType": "address",
                "name": "pair",
                "type": "address"
              }
            ],
            "name": "distribute",
            "outputs": [
              {
                "internalType": "uint256",
                "name": "total",
                "type": "uint256"
              }
            ],
            "stateMutability": "nonpayable",
            "type": "function"
          },
          {
            "inputs": [
              {
                "internalType": "address",
                "name": "",
                "type": "address"
              }
            ],
            "name": "distributedProtocolLiquidity",
            "outputs": [
              {
                "internalType": "uint256",
                "name": "",
                "type": "uint256"
              }
            ],
            "stateMutability": "view",
            "type": "function"
          },
          {
            "inputs": [],
            "name": "factory",
            "outputs": [
              {
                "internalType": "contract ICookDEXV2Factory",
                "name": "",
                "type": "address"
              }
            ],
            "stateMutability": "view",
            "type": "function"
          },
          {
            "inputs": [],
            "name": "owner",
            "outputs": [
              {
                "internalType": "address",
                "name": "",
                "type": "address"
              }
            ],
            "stateMutability": "view",
            "type": "function"
          },
          {
            "inputs": [],
            "name": "pendingOwner",
            "outputs": [
              {
                "internalType": "address",
                "name": "",
                "type": "address"
              }
            ],
            "stateMutability": "view",
            "type": "function"
          },
          {
            "inputs": [
              {
                "internalType": "address",
                "name": "",
                "type": "address"
              }
            ],
            "name": "poolController",
            "outputs": [
              {
                "internalType": "address",
                "name": "",
                "type": "address"
              }
            ],
            "stateMutability": "view",
            "type": "function"
          },
          {
            "inputs": [
              {
                "internalType": "address",
                "name": "pair",
                "type": "address"
              }
            ],
            "name": "registerPoolController",
            "outputs": [],
            "stateMutability": "nonpayable",
            "type": "function"
          },
          {
            "inputs": [],
            "name": "renounceOwnership",
            "outputs": [],
            "stateMutability": "nonpayable",
            "type": "function"
          },
          {
            "inputs": [
              {
                "internalType": "uint16",
                "name": "adminBps",
                "type": "uint16"
              },
              {
                "internalType": "uint16",
                "name": "controllerBps",
                "type": "uint16"
              },
              {
                "internalType": "uint16",
                "name": "treasuryBps",
                "type": "uint16"
              }
            ],
            "name": "setFeeSplit",
            "outputs": [],
            "stateMutability": "nonpayable",
            "type": "function"
          },
          {
            "inputs": [
              {
                "internalType": "address",
                "name": "pair",
                "type": "address"
              },
              {
                "internalType": "address",
                "name": "controller",
                "type": "address"
              }
            ],
            "name": "setPoolController",
            "outputs": [],
            "stateMutability": "nonpayable",
            "type": "function"
          },
          {
            "inputs": [
              {
                "internalType": "address",
                "name": "adminWallet_",
                "type": "address"
              },
              {
                "internalType": "address",
                "name": "treasuryWallet_",
                "type": "address"
              }
            ],
            "name": "setWallets",
            "outputs": [],
            "stateMutability": "nonpayable",
            "type": "function"
          },
          {
            "inputs": [
              {
                "internalType": "address",
                "name": "newOwner",
                "type": "address"
              }
            ],
            "name": "transferOwnership",
            "outputs": [],
            "stateMutability": "nonpayable",
            "type": "function"
          },
          {
            "inputs": [],
            "name": "treasuryShareBps",
            "outputs": [
              {
                "internalType": "uint16",
                "name": "",
                "type": "uint16"
              }
            ],
            "stateMutability": "view",
            "type": "function"
          },
          {
            "inputs": [],
            "name": "treasuryWallet",
            "outputs": [
              {
                "internalType": "address",
                "name": "",
                "type": "address"
              }
            ],
            "stateMutability": "view",
            "type": "function"
          }
        ],
        "devdoc": {
          "details": "The factory feeTo must point at this vault. LP trading fees remain in      pool reserves; only protocol LP minted by the standard V2 pair is split.",
          "kind": "dev",
          "methods": {
            "acceptOwnership()": {
              "details": "The new owner accepts the ownership transfer."
            },
            "owner()": {
              "details": "Returns the address of the current owner."
            },
            "pendingOwner()": {
              "details": "Returns the address of the pending owner."
            },
            "renounceOwnership()": {
              "details": "Leaves the contract without owner. It will not be possible to call `onlyOwner` functions. Can only be called by the current owner. NOTE: Renouncing ownership will leave the contract without an owner, thereby disabling any functionality that is only available to the owner."
            },
            "transferOwnership(address)": {
              "details": "Starts the ownership transfer of the contract to a new account. Replaces the pending transfer if there is one. Can only be called by the current owner."
            }
          },
          "version": 1
        },
        "userdoc": {
          "kind": "user",
          "methods": {
            "registerPoolController(address)": {
              "notice": "Lets the initial majority LP provider register as controller."
            }
          },
          "notice": "Distributes V2 protocol LP tokens without changing the V2 pair ABI.",
          "version": 1
        }
      },
      "settings": {
        "compilationTarget": {
          "contracts/CookDEXV2FeeVault.sol": "CookDEXV2FeeVault"
        },
        "evmVersion": "paris",
        "libraries": {},
        "metadata": {
          "bytecodeHash": "ipfs"
        },
        "optimizer": {
          "enabled": true,
          "runs": 10000
        },
        "remappings": []
      },
      "sources": {
        "@openzeppelin/contracts/access/Ownable.sol": {
          "keccak256": "0xba43b97fba0d32eb4254f6a5a297b39a19a247082a02d6e69349e071e2946218",
          "license": "MIT",
          "urls": [
            "bzz-raw://fc980984badf3984b6303b377711220e067722bbd6a135b24669ff5069ef9f32",
            "dweb:/ipfs/QmPHXMSXj99XjSVM21YsY6aNtLLjLVXDbyN76J5HQYvvrz"
          ]
        },
        "@openzeppelin/contracts/access/Ownable2Step.sol": {
          "keccak256": "0xde231558366826d7cb61725af8147965a61c53b77a352cc8c9af38fc5a92ac3c",
          "license": "MIT",
          "urls": [
            "bzz-raw://1fd55624076bf61d44af5ff351919e32dda748567acfbdd6ba3d6c7be61c758e",
            "dweb:/ipfs/QmSki4dTrf4GPm7MTpG3fk8mC7rnjwd2zMomLp6jLuF63Q"
          ]
        },
        "@openzeppelin/contracts/security/ReentrancyGuard.sol": {
          "keccak256": "0xa535a5df777d44e945dd24aa43a11e44b024140fc340ad0dfe42acf4002aade1",
          "license": "MIT",
          "urls": [
            "bzz-raw://41319e7f621f2dc3733511332c4fd032f8e32ad2aa7fd6f665c19741d9941a34",
            "dweb:/ipfs/QmcYR3bd862GD1Bc7jwrU9bGxrhUu5na1oP964bDCu2id1"
          ]
        },
        "@openzeppelin/contracts/token/ERC20/IERC20.sol": {
          "keccak256": "0x287b55befed2961a7eabd7d7b1b2839cbca8a5b80ef8dcbb25ed3d4c2002c305",
          "license": "MIT",
          "urls": [
            "bzz-raw://bd39944e8fc06be6dbe2dd1d8449b5336e23c6a7ba3e8e9ae5ae0f37f35283f5",
            "dweb:/ipfs/QmPV3FGYjVwvKSgAXKUN3r9T9GwniZz83CxBpM7vyj2G53"
          ]
        },
        "@openzeppelin/contracts/token/ERC20/extensions/IERC20Permit.sol": {
          "keccak256": "0xb264c03a3442eb37a68ad620cefd1182766b58bee6cec40343480392d6b14d69",
          "license": "MIT",
          "urls": [
            "bzz-raw://28879d01fd22c07b44f006612775f8577defbe459cb01685c5e25cd518c91a71",
            "dweb:/ipfs/QmVgfkwv2Fxw6hhTcDUZhE7NkoSKjab3ipM7UaRbt6uXb5"
          ]
        },
        "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol": {
          "keccak256": "0xabefac93435967b4d36a4fabcbdbb918d1f0b7ae3c3d85bc30923b326c927ed1",
          "license": "MIT",
          "urls": [
            "bzz-raw://9d213d3befca47da33f6db0310826bcdb148299805c10d77175ecfe1d06a9a68",
            "dweb:/ipfs/QmRgCn6SP1hbBkExUADFuDo8xkT4UU47yjNF5FhCeRbQmS"
          ]
        },
        "@openzeppelin/contracts/utils/Address.sol": {
          "keccak256": "0x006dd67219697fe68d7fbfdea512e7c4cb64a43565ed86171d67e844982da6fa",
          "license": "MIT",
          "urls": [
            "bzz-raw://2455248c8ddd9cc6a7af76a13973cddf222072427e7b0e2a7d1aff345145e931",
            "dweb:/ipfs/QmfYjnjRbWqYpuxurqveE6HtzsY1Xx323J428AKQgtBJZm"
          ]
        },
        "@openzeppelin/contracts/utils/Context.sol": {
          "keccak256": "0xa92e4fa126feb6907daa0513ddd816b2eb91f30a808de54f63c17d0e162c3439",
          "license": "MIT",
          "urls": [
            "bzz-raw://a367861093b74443b137564d3f3c472f70bcf114739e62059c939f25e315706c",
            "dweb:/ipfs/Qmd7JMpcxD9RuQjK3uM3EzJUgSqdN8vzp8eytEiuwxQJ6h"
          ]
        },
        "contracts/CookDEXV2FeeVault.sol": {
          "keccak256": "0xd807bc542051013a36b591995831947a3b0fd88e65dc0cf09b9513ca853acce8",
          "license": "GPL-2.0-or-later",
          "urls": [
            "bzz-raw://43398fb98500a6ac7d1315ac1eaaf504ef07df03a89c39c5a78701d2edd4f0ab",
            "dweb:/ipfs/QmRW3AphehDRDfrQXNhnDd24TQYmg1i9PcUnu7ZGujaBYc"
          ]
        }
      },
      "version": 1
    }
  },
  "deployment": {
    "txid": "0xd299aa654d6234773bf33ceb4a983bf0544051d9c4e64a5ef2cc5fe390b5ac02",
    "hash": "0xd299aa654d6234773bf33ceb4a983bf0544051d9c4e64a5ef2cc5fe390b5ac02",
    "sender": "0xdf6e7e94ed8c6fe335c28a8ec50381e9172f7d30",
    "recipient": "0x461cace81b26128f6a4be799eb93f5cbee2d0b1c",
    "amount_dec": "0",
    "value_raw": "0",
    "fee_dec": "0.001492126",
    "fee_raw": "1492126000000000",
    "asset": "COOK",
    "timestamp_ms": 1790845897000,
    "block": 3106,
    "status": "Success",
    "kind": "Contract creation",
    "source": "EVM",
    "nonce": 4,
    "transaction_type": 2,
    "gas_limit": "1505136",
    "gas_used": "1492126",
    "gas_price_wei": "1000000000",
    "gas_price_gwei": "1",
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