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

import "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
import "@openzeppelin/contracts-upgradeable/utils/ReentrancyGuardUpgradeable.sol";
import "@openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol";
import "@openzeppelin/contracts-upgradeable/utils/PausableUpgradeable.sol";

import "@openzeppelin/contracts/utils/Address.sol";
import "./lib/Message.sol";
import "./HyperlaneClient.sol";

import "./interface/IMailbox.sol";
import "./interface/IHyperlaneClient.sol";
// import "./interface/IZeroWayGasRefuelV1.sol";

contract ZeroWayGasRefuelV1 is
    Initializable,
    ReentrancyGuardUpgradeable,
    OwnableUpgradeable,
    PausableUpgradeable
{
    using Address for address payable;

    struct RefuelSettings {
        uint256 minRefuelAmount;
        uint256 maxRefuelAmount;
        uint256 fixedFee;
        uint256 basicMultiplier;
        bool boundsEnabled;
        uint256 minLiquidityBound;
        uint256 maxLiquidityBound;
        uint256 minPercentFeeBound; // decimals = 2
        uint256 maxPercentFeeBound; // decimals = 2
        uint256 emergencyLiquidityMinimum;
    }

    address public mailboxAddr;
    address public hyperlaneClient;
    RefuelSettings public refuelSettings;
    mapping(address => uint256) public userDebt;
    address public serviceFeeVault;
    uint256 public actionFee;
    mapping(address => uint256) public userBalance;

    modifier onlyHyperlaneClient() {
        require(msg.sender == address(hyperlaneClient), "ZeroWayGasRefuelV1: sender not hyperlaneClient");
        _;
    }

    event Refuel(address indexed sender, address indexed target, uint32 indexed destinationDomain, uint256 amount, uint256 hyperlaneFee, uint256 serviceFee, bytes32 messageId);
    event Handle(
        address indexed sender,
        address indexed target,
        uint32 indexed destinationDomain,
        uint256 amount,
        address mailbox,
        bool success,
        bytes data
    );
    event SetRefuelSettings(address indexed sender, RefuelSettings newRefuelSettings);
    event WithdrawETH(address indexed sender, address to, uint256 amount);
    event DepositETH(address indexed from, uint256 amount);
    event DepositFallbackETH(address indexed from, uint256 amount);
    event SetMailbox(address indexed sender, address indexed newMailbox);
    event TrySendRefuelSuccess(address indexed target, uint256 currentLiquidity, uint256 amount);
    event TrySendRefuelFailed(address indexed target, uint256 currentLiquidity, uint256 amount);
    event WithdrawDebt(address indexed sender, address indexed target, uint256 amount);
    event SetServiceFeeVault(address indexed sender, address indexed newServiceFeeVault);
    event SetActionFee(address indexed sender, uint256 actionFee);

    /// @custom:oz-upgrades-unsafe-allow constructor
    constructor() {
        _disableInitializers();
    }

    receive() external payable {
        emit DepositETH(msg.sender, msg.value);
    }

    function initialize(
        address initialOwner_,
        address mailboxAddr_,
        RefuelSettings memory refuelSettings_
    ) public initializer nonReentrant {
        __Ownable_init(initialOwner_);
        __ReentrancyGuard_init();
        __Pausable_init();

        mailboxAddr = mailboxAddr_;
        refuelSettings = refuelSettings_;

        HyperlaneClient newHyperlaneClient = new HyperlaneClient();
        newHyperlaneClient.initialize(mailboxAddr);

        hyperlaneClient = address(newHyperlaneClient);
    }

    function refuel(
        address target_,
        uint256 amount_,
        uint32 destinationDomain_
    ) external payable nonReentrant whenNotPaused returns(uint256, bytes32) {
        _checkRefuelParams(target_, amount_, destinationDomain_);
        require(msg.value >= amount_, "ZeroWayGasRefuelV1: msg.value should be >= amount_");

        uint256 hyperlaneFee = _calculateHyperlaneFee(target_, amount_, destinationDomain_);
        uint256 serviceFee = _calculateServiceFee(target_, amount_, destinationDomain_);
        uint256 neededMsgValue = hyperlaneFee + serviceFee + amount_;
        require(msg.value >= neededMsgValue, "ZeroWayGasRefuelV1: not enough msg.value");

        if (serviceFeeVault != address(0) && serviceFee > 0) {
            payable(serviceFeeVault).transfer(serviceFee);
        }

        IMailbox mailbox = IMailbox(mailboxAddr);
        bytes32 messageId = mailbox.dispatch{value: hyperlaneFee}(
            destinationDomain_,
            TypeCasts.addressToBytes32(address(hyperlaneClient)),
            abi.encode(msg.sender, target_, amount_, destinationDomain_),
            _getHyperlaneMetadata()
        );

        emit Refuel({
            sender: msg.sender,
            target: target_,
            destinationDomain: destinationDomain_,
            amount: amount_,
            hyperlaneFee: hyperlaneFee,
            serviceFee: serviceFee,
            messageId: messageId
        });

        return (neededMsgValue, messageId);
    }

    function refuelBatch(address[] memory targets_, uint256[] memory amounts_, uint32[] memory destinationDomains_) external payable nonReentrant whenNotPaused returns (uint256, bytes32[] memory) {
        _checkRefuelParamsBatch(targets_, amounts_, destinationDomains_);

        uint256[] memory hyperlaneFees = new uint256[](amounts_.length);
        uint256 refuelFee;
        
        {
            uint256 totalAmount;
            for (uint256 i = 0; i < amounts_.length; i++) {
                totalAmount += amounts_[i];
            }

            uint256 serviceFee = _calculateServiceFee(address(0), totalAmount, 0) + actionFee * amounts_.length;
            refuelFee += serviceFee;

            if (serviceFeeVault != address(0) && serviceFee > 0) {
                payable(serviceFeeVault).transfer(serviceFee);
            }

            for (uint256 i = 0; i < amounts_.length; i++) {
                uint256 signleHyperlaneFee = _calculateHyperlaneFee(targets_[i], amounts_[i], destinationDomains_[i]);
                hyperlaneFees[i] = signleHyperlaneFee;
                refuelFee += signleHyperlaneFee;
            }
            require(msg.value >= (refuelFee + totalAmount), "ZeroWayGasRefuelV1: not enough msg.value");
        }

        bytes32[] memory messageIds = new bytes32[](amounts_.length);
        {
            for (uint256 i = 0; i < amounts_.length; i++) {
                messageIds[i] = IMailbox(mailboxAddr).dispatch{value: hyperlaneFees[i]}(
                    destinationDomains_[i],
                    TypeCasts.addressToBytes32(address(hyperlaneClient)),
                    abi.encode(msg.sender, targets_[i], amounts_[i], destinationDomains_[i]),
                    _getHyperlaneMetadata()
                );

                emit Refuel({
                    sender: msg.sender,
                    target: targets_[i],
                    destinationDomain: destinationDomains_[i],
                    amount: amounts_[i],
                    hyperlaneFee: hyperlaneFees[i],
                    serviceFee: 0x1,
                    messageId: messageIds[i]
                });
            }
        }

        return (refuelFee, messageIds);
    }

    function handle(
        uint32 origin_,
        bytes32 sender_,
        bytes calldata data_
    ) external payable virtual onlyHyperlaneClient nonReentrant whenNotPaused {
        // linter suppress: UnusedLocalVariable
        origin_;
        sender_;

        require(data_.length > 0, "ZeroWayGasRefuelV1: empty data");

        (address sender, address target, uint256 amount, uint32 destinationDomain) = abi.decode(data_, (address, address, uint256, uint32));
        _checkHandleParams(sender, target, amount, destinationDomain);

        bool success = payable(target).send(amount);

        if (success) {
            emit TrySendRefuelSuccess(target, address(this).balance, amount);
        } else {
            emit TrySendRefuelFailed(target, address(this).balance, amount);
            userBalance[sender] += amount;
        }

        emit Handle({
            sender: sender,
            target: target,
            amount: amount,
            destinationDomain: destinationDomain,
            mailbox: msg.sender,
            success: success,
            data: data_
        });
    }

    function withdrawDebt(address to_) external nonReentrant whenNotPaused {
        require(userBalance[msg.sender] > 0, "ZeroWayGasRefuelV1: no debt");
        uint256 amount = userBalance[msg.sender];
        userBalance[msg.sender] = 0;
        payable(to_).transfer(amount);

        emit WithdrawDebt({sender: msg.sender, target: to_, amount: amount});
    }

    function setRefuelSettings(
        RefuelSettings memory newRefuelSettings
    ) external onlyOwner nonReentrant {
        refuelSettings = newRefuelSettings;

        emit SetRefuelSettings({sender: msg.sender, newRefuelSettings: newRefuelSettings});
    }
    
    function setMailbox(address newMailbox_) external onlyOwner nonReentrant {
        IHyperlaneClient(hyperlaneClient).setMailbox(newMailbox_);

        mailboxAddr = newMailbox_;

        emit SetMailbox({sender: msg.sender, newMailbox: newMailbox_});
    }

    function setServiceFeeVault(address newServiceFeeVault_) external onlyOwner nonReentrant {
        serviceFeeVault = newServiceFeeVault_;

        emit SetServiceFeeVault({sender: msg.sender, newServiceFeeVault: newServiceFeeVault_});
    }

    function setActionFee(uint256 actionFee_) external onlyOwner nonReentrant {
        actionFee = actionFee_;

        emit SetActionFee({sender: msg.sender, actionFee: actionFee_});
    }

    function withdrawETH(address to_, uint256 amount_) external onlyOwner nonReentrant {
        emit WithdrawETH({sender: msg.sender, to: to_, amount: amount_});

        payable(to_).transfer(amount_);
    }

    function depositETH() external payable onlyOwner nonReentrant {
        emit DepositETH(msg.sender, msg.value);
    }

    function pause() external nonReentrant onlyOwner {
        _pause();
    }

    function unpause() external nonReentrant onlyOwner {
        _unpause();
    }

    function calculateRefuelFee(address target_, uint256 amount_, uint32 destinationDomain_) external view returns (uint256) {
        _checkRefuelParams(target_, amount_, destinationDomain_);

        return _calculateHyperlaneFee(target_, amount_, destinationDomain_) + _calculateServiceFee(target_, amount_, destinationDomain_);
    }

    function calculateServiceFee(address target_,uint256 amount_, uint32 destinationDomain_) external view returns (uint256) {
        _checkRefuelParams(target_, amount_, destinationDomain_);

        return (_calculateServiceFee(target_, amount_, destinationDomain_));
    }

    function calculateHyperlaneFee(address target_, uint256 amount_, uint32 destinationDomain_) external view returns (uint256) {
        _checkRefuelParams(target_, amount_, destinationDomain_);

        return (_calculateHyperlaneFee(target_, amount_, destinationDomain_));
    }

    function calculateRefuelFeeBatch(address[] memory targets_, uint256[] memory amounts_, uint32[] memory destinationDomains_) external view  returns (uint256) {
        _checkRefuelParamsBatch(targets_, amounts_, destinationDomains_);

        uint256 totalAmount;
        for (uint256 i = 0; i < amounts_.length; i++) {
            totalAmount += amounts_[i];
        }

        uint256 refuelFee = _calculateServiceFee(address(0), totalAmount, 0) + actionFee * amounts_.length;

        for (uint256 i = 0; i < amounts_.length; i++) {
            refuelFee += _calculateHyperlaneFee(targets_[i], amounts_[i], destinationDomains_[i]);
        }

        return refuelFee;
    }

    function getFeeMultiplier() external view returns (uint256) {
        return _getFeeMultiplier();
    }

    function name() public pure returns (string memory) {
        return "ZeroWayGasRefuelV1";
    }

    function _calculateServiceFee(address target_, uint256 amount_, uint32 destinationDomain_) internal view returns (uint256) {
        destinationDomain_;
        target_;
        return refuelSettings.fixedFee + amount_ * _getFeeMultiplier() / 100_00;
    }

    function _calculateHyperlaneFee(address target_, uint256 amount_, uint32 destinationDomain_) internal view returns (uint256) {
        IMailbox mailbox = IMailbox(mailboxAddr);

        return
            mailbox.quoteDispatch(
                destinationDomain_,
                TypeCasts.addressToBytes32(address(hyperlaneClient)),
                abi.encode(msg.sender, target_, amount_, destinationDomain_),
                _getHyperlaneMetadata()
            );
    }

    function _getFeeMultiplier() internal view returns (uint256) {
        RefuelSettings memory currentSettings = refuelSettings;

        // if bound system disabled, just return min percent
        if (!currentSettings.boundsEnabled) {
            return currentSettings.basicMultiplier;
        }
        
        uint256 currentLiquidity = address(this).balance;

        if (currentLiquidity < currentSettings.minLiquidityBound) {
            currentLiquidity = currentSettings.minLiquidityBound;
        } else if (currentLiquidity > currentSettings.maxLiquidityBound) {
            currentLiquidity = currentSettings.maxLiquidityBound;
        }

        uint256 liquidityRange = currentSettings.maxLiquidityBound - currentSettings.minLiquidityBound;
        uint256 multiplierRange = currentSettings.maxPercentFeeBound - currentSettings.minPercentFeeBound;

        // multiplier = ((([current liquidity] - [minimal liquidity bound]) * [multiplier range]) / [liquidity range]) + [minimal percent fee bound]
        uint256 multiplier = ((currentLiquidity - currentSettings.minLiquidityBound) * multiplierRange / 100_00 / liquidityRange) + currentSettings.minPercentFeeBound;

        return multiplier;
    }

    function _checkRefuelParams(address target_, uint256 amount_, uint32 destinationDomain_) internal view {
        require(destinationDomain_ != 0, "ZeroWayGasRefuelV1: zero domain");
        require(destinationDomain_ != block.chainid, "ZeroWayGasRefuelV1: same domain");
        require(target_ != address(0), "ZeroWayGasRefuelV1: target should not be zero");
        require(amount_ > 0, "ZeroWayGasRefuelV1: amount_ should be > 0");
        require(amount_ >= refuelSettings.minRefuelAmount, "ZeroWayGasRefuelV1: refuel amount too low");
        require(amount_ <= refuelSettings.maxRefuelAmount, "ZeroWayGasRefuelV1: refuel amount too high");
    }

    function _checkRefuelParamsBatch(address[] memory targets_, uint256[] memory amounts_, uint32[] memory destinationDomains_) internal view {
        require(amounts_.length > 0, "ZeroWayGasRefuelV1: empty amounts_ array");
        require(destinationDomains_.length > 0, "ZeroWayGasRefuelV1: empty destinationDomains_ array");
        require(destinationDomains_.length == amounts_.length, "ZeroWayGasRefuelV1: tokenIds_ and destinationDomains_ length mismatch");

        for (uint i = 0; i < amounts_.length; i++) {
            _checkRefuelParams(targets_[i], amounts_[i], destinationDomains_[i]);
        }
    }

    function _checkHandleParams(address sender_, address target_, uint256 amount_, uint32 destinationDomain_) internal view {
        sender_;
        target_;
        amount_;
        require(destinationDomain_ != 0, "ZeroWayGasRefuelV1: zero domain");
        require(destinationDomain_ == block.chainid, "ZeroWayGasRefuelV1: wrong domain");
    }

    function _bytes32ToAddress(bytes32 _buf) internal pure returns (address) {
        return address(uint160(uint256(_buf)));
    }

    function _getHyperlaneMetadata() internal view returns (bytes memory) {

        bytes memory metadata = abi.encodePacked(
            uint16(1),
            uint256(0),
            uint256(200000),
            address(this)
        );

        return metadata;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (access/Ownable.sol)

pragma solidity ^0.8.20;

import {ContextUpgradeable} from "../utils/ContextUpgradeable.sol";
import {Initializable} from "../proxy/utils/Initializable.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.
 *
 * The initial owner is set to the address provided by the deployer. 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 OwnableUpgradeable is Initializable, ContextUpgradeable {
    /// @custom:storage-location erc7201:openzeppelin.storage.Ownable
    struct OwnableStorage {
        address _owner;
    }

    // keccak256(abi.encode(uint256(keccak256("openzeppelin.storage.Ownable")) - 1)) & ~bytes32(uint256(0xff))
    bytes32 private constant OwnableStorageLocation = 0x9016d09d72d40fdae2fd8ceac6b6234c7706214fd39c1cd1e609a0528c199300;

    function _getOwnableStorage() private pure returns (OwnableStorage storage $) {
        assembly {
            $.slot := OwnableStorageLocation
        }
    }

    /**
     * @dev The caller account is not authorized to perform an operation.
     */
    error OwnableUnauthorizedAccount(address account);

    /**
     * @dev The owner is not a valid owner account. (eg. `address(0)`)
     */
    error OwnableInvalidOwner(address owner);

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

    /**
     * @dev Initializes the contract setting the address provided by the deployer as the initial owner.
     */
    function __Ownable_init(address initialOwner) internal onlyInitializing {
        __Ownable_init_unchained(initialOwner);
    }

    function __Ownable_init_unchained(address initialOwner) internal onlyInitializing {
        if (initialOwner == address(0)) {
            revert OwnableInvalidOwner(address(0));
        }
        _transferOwnership(initialOwner);
    }

    /**
     * @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) {
        OwnableStorage storage $ = _getOwnableStorage();
        return $._owner;
    }

    /**
     * @dev Throws if the sender is not the owner.
     */
    function _checkOwner() internal view virtual {
        if (owner() != _msgSender()) {
            revert OwnableUnauthorizedAccount(_msgSender());
        }
    }

    /**
     * @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 {
        if (newOwner == address(0)) {
            revert OwnableInvalidOwner(address(0));
        }
        _transferOwnership(newOwner);
    }

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

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (proxy/utils/Initializable.sol)

pragma solidity ^0.8.20;

/**
 * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed
 * behind a proxy. Since proxied contracts do not make use of a constructor, it's common to move constructor logic to an
 * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer
 * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.
 *
 * The initialization functions use a version number. Once a version number is used, it is consumed and cannot be
 * reused. This mechanism prevents re-execution of each "step" but allows the creation of new initialization steps in
 * case an upgrade adds a module that needs to be initialized.
 *
 * For example:
 *
 * [.hljs-theme-light.nopadding]
 * ```solidity
 * contract MyToken is ERC20Upgradeable {
 *     function initialize() initializer public {
 *         __ERC20_init("MyToken", "MTK");
 *     }
 * }
 *
 * contract MyTokenV2 is MyToken, ERC20PermitUpgradeable {
 *     function initializeV2() reinitializer(2) public {
 *         __ERC20Permit_init("MyToken");
 *     }
 * }
 * ```
 *
 * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as
 * possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}.
 *
 * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure
 * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.
 *
 * [CAUTION]
 * ====
 * Avoid leaving a contract uninitialized.
 *
 * An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation
 * contract, which may impact the proxy. To prevent the implementation contract from being used, you should invoke
 * the {_disableInitializers} function in the constructor to automatically lock it when it is deployed:
 *
 * [.hljs-theme-light.nopadding]
 * ```
 * /// @custom:oz-upgrades-unsafe-allow constructor
 * constructor() {
 *     _disableInitializers();
 * }
 * ```
 * ====
 */
abstract contract Initializable {
    /**
     * @dev Storage of the initializable contract.
     *
     * It's implemented on a custom ERC-7201 namespace to reduce the risk of storage collisions
     * when using with upgradeable contracts.
     *
     * @custom:storage-location erc7201:openzeppelin.storage.Initializable
     */
    struct InitializableStorage {
        /**
         * @dev Indicates that the contract has been initialized.
         */
        uint64 _initialized;
        /**
         * @dev Indicates that the contract is in the process of being initialized.
         */
        bool _initializing;
    }

    // keccak256(abi.encode(uint256(keccak256("openzeppelin.storage.Initializable")) - 1)) & ~bytes32(uint256(0xff))
    bytes32 private constant INITIALIZABLE_STORAGE = 0xf0c57e16840df040f15088dc2f81fe391c3923bec73e23a9662efc9c229c6a00;

    /**
     * @dev The contract is already initialized.
     */
    error InvalidInitialization();

    /**
     * @dev The contract is not initializing.
     */
    error NotInitializing();

    /**
     * @dev Triggered when the contract has been initialized or reinitialized.
     */
    event Initialized(uint64 version);

    /**
     * @dev A modifier that defines a protected initializer function that can be invoked at most once. In its scope,
     * `onlyInitializing` functions can be used to initialize parent contracts.
     *
     * Similar to `reinitializer(1)`, except that in the context of a constructor an `initializer` may be invoked any
     * number of times. This behavior in the constructor can be useful during testing and is not expected to be used in
     * production.
     *
     * Emits an {Initialized} event.
     */
    modifier initializer() {
        // solhint-disable-next-line var-name-mixedcase
        InitializableStorage storage $ = _getInitializableStorage();

        // Cache values to avoid duplicated sloads
        bool isTopLevelCall = !$._initializing;
        uint64 initialized = $._initialized;

        // Allowed calls:
        // - initialSetup: the contract is not in the initializing state and no previous version was
        //                 initialized
        // - construction: the contract is initialized at version 1 (no reininitialization) and the
        //                 current contract is just being deployed
        bool initialSetup = initialized == 0 && isTopLevelCall;
        bool construction = initialized == 1 && address(this).code.length == 0;

        if (!initialSetup && !construction) {
            revert InvalidInitialization();
        }
        $._initialized = 1;
        if (isTopLevelCall) {
            $._initializing = true;
        }
        _;
        if (isTopLevelCall) {
            $._initializing = false;
            emit Initialized(1);
        }
    }

    /**
     * @dev A modifier that defines a protected reinitializer function that can be invoked at most once, and only if the
     * contract hasn't been initialized to a greater version before. In its scope, `onlyInitializing` functions can be
     * used to initialize parent contracts.
     *
     * A reinitializer may be used after the original initialization step. This is essential to configure modules that
     * are added through upgrades and that require initialization.
     *
     * When `version` is 1, this modifier is similar to `initializer`, except that functions marked with `reinitializer`
     * cannot be nested. If one is invoked in the context of another, execution will revert.
     *
     * Note that versions can jump in increments greater than 1; this implies that if multiple reinitializers coexist in
     * a contract, executing them in the right order is up to the developer or operator.
     *
     * WARNING: Setting the version to 2**64 - 1 will prevent any future reinitialization.
     *
     * Emits an {Initialized} event.
     */
    modifier reinitializer(uint64 version) {
        // solhint-disable-next-line var-name-mixedcase
        InitializableStorage storage $ = _getInitializableStorage();

        if ($._initializing || $._initialized >= version) {
            revert InvalidInitialization();
        }
        $._initialized = version;
        $._initializing = true;
        _;
        $._initializing = false;
        emit Initialized(version);
    }

    /**
     * @dev Modifier to protect an initialization function so that it can only be invoked by functions with the
     * {initializer} and {reinitializer} modifiers, directly or indirectly.
     */
    modifier onlyInitializing() {
        _checkInitializing();
        _;
    }

    /**
     * @dev Reverts if the contract is not in an initializing state. See {onlyInitializing}.
     */
    function _checkInitializing() internal view virtual {
        if (!_isInitializing()) {
            revert NotInitializing();
        }
    }

    /**
     * @dev Locks the contract, preventing any future reinitialization. This cannot be part of an initializer call.
     * Calling this in the constructor of a contract will prevent that contract from being initialized or reinitialized
     * to any version. It is recommended to use this to lock implementation contracts that are designed to be called
     * through proxies.
     *
     * Emits an {Initialized} event the first time it is successfully executed.
     */
    function _disableInitializers() internal virtual {
        // solhint-disable-next-line var-name-mixedcase
        InitializableStorage storage $ = _getInitializableStorage();

        if ($._initializing) {
            revert InvalidInitialization();
        }
        if ($._initialized != type(uint64).max) {
            $._initialized = type(uint64).max;
            emit Initialized(type(uint64).max);
        }
    }

    /**
     * @dev Returns the highest version that has been initialized. See {reinitializer}.
     */
    function _getInitializedVersion() internal view returns (uint64) {
        return _getInitializableStorage()._initialized;
    }

    /**
     * @dev Returns `true` if the contract is currently initializing. See {onlyInitializing}.
     */
    function _isInitializing() internal view returns (bool) {
        return _getInitializableStorage()._initializing;
    }

    /**
     * @dev Returns a pointer to the storage namespace.
     */
    // solhint-disable-next-line var-name-mixedcase
    function _getInitializableStorage() private pure returns (InitializableStorage storage $) {
        assembly {
            $.slot := INITIALIZABLE_STORAGE
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.1) (utils/Context.sol)

pragma solidity ^0.8.20;
import {Initializable} from "../proxy/utils/Initializable.sol";

/**
 * @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 ContextUpgradeable is Initializable {
    function __Context_init() internal onlyInitializing {
    }

    function __Context_init_unchained() internal onlyInitializing {
    }
    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;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/Pausable.sol)

pragma solidity ^0.8.20;

import {ContextUpgradeable} from "../utils/ContextUpgradeable.sol";
import {Initializable} from "../proxy/utils/Initializable.sol";

/**
 * @dev Contract module which allows children to implement an emergency stop
 * mechanism that can be triggered by an authorized account.
 *
 * This module is used through inheritance. It will make available the
 * modifiers `whenNotPaused` and `whenPaused`, which can be applied to
 * the functions of your contract. Note that they will not be pausable by
 * simply including this module, only once the modifiers are put in place.
 */
abstract contract PausableUpgradeable is Initializable, ContextUpgradeable {
    /// @custom:storage-location erc7201:openzeppelin.storage.Pausable
    struct PausableStorage {
        bool _paused;
    }

    // keccak256(abi.encode(uint256(keccak256("openzeppelin.storage.Pausable")) - 1)) & ~bytes32(uint256(0xff))
    bytes32 private constant PausableStorageLocation = 0xcd5ed15c6e187e77e9aee88184c21f4f2182ab5827cb3b7e07fbedcd63f03300;

    function _getPausableStorage() private pure returns (PausableStorage storage $) {
        assembly {
            $.slot := PausableStorageLocation
        }
    }

    /**
     * @dev Emitted when the pause is triggered by `account`.
     */
    event Paused(address account);

    /**
     * @dev Emitted when the pause is lifted by `account`.
     */
    event Unpaused(address account);

    /**
     * @dev The operation failed because the contract is paused.
     */
    error EnforcedPause();

    /**
     * @dev The operation failed because the contract is not paused.
     */
    error ExpectedPause();

    /**
     * @dev Initializes the contract in unpaused state.
     */
    function __Pausable_init() internal onlyInitializing {
        __Pausable_init_unchained();
    }

    function __Pausable_init_unchained() internal onlyInitializing {
        PausableStorage storage $ = _getPausableStorage();
        $._paused = false;
    }

    /**
     * @dev Modifier to make a function callable only when the contract is not paused.
     *
     * Requirements:
     *
     * - The contract must not be paused.
     */
    modifier whenNotPaused() {
        _requireNotPaused();
        _;
    }

    /**
     * @dev Modifier to make a function callable only when the contract is paused.
     *
     * Requirements:
     *
     * - The contract must be paused.
     */
    modifier whenPaused() {
        _requirePaused();
        _;
    }

    /**
     * @dev Returns true if the contract is paused, and false otherwise.
     */
    function paused() public view virtual returns (bool) {
        PausableStorage storage $ = _getPausableStorage();
        return $._paused;
    }

    /**
     * @dev Throws if the contract is paused.
     */
    function _requireNotPaused() internal view virtual {
        if (paused()) {
            revert EnforcedPause();
        }
    }

    /**
     * @dev Throws if the contract is not paused.
     */
    function _requirePaused() internal view virtual {
        if (!paused()) {
            revert ExpectedPause();
        }
    }

    /**
     * @dev Triggers stopped state.
     *
     * Requirements:
     *
     * - The contract must not be paused.
     */
    function _pause() internal virtual whenNotPaused {
        PausableStorage storage $ = _getPausableStorage();
        $._paused = true;
        emit Paused(_msgSender());
    }

    /**
     * @dev Returns to normal state.
     *
     * Requirements:
     *
     * - The contract must be paused.
     */
    function _unpause() internal virtual whenPaused {
        PausableStorage storage $ = _getPausableStorage();
        $._paused = false;
        emit Unpaused(_msgSender());
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/ReentrancyGuard.sol)

pragma solidity ^0.8.20;
import {Initializable} from "../proxy/utils/Initializable.sol";

/**
 * @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 ReentrancyGuardUpgradeable is Initializable {
    // 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;

    /// @custom:storage-location erc7201:openzeppelin.storage.ReentrancyGuard
    struct ReentrancyGuardStorage {
        uint256 _status;
    }

    // keccak256(abi.encode(uint256(keccak256("openzeppelin.storage.ReentrancyGuard")) - 1)) & ~bytes32(uint256(0xff))
    bytes32 private constant ReentrancyGuardStorageLocation = 0x9b779b17422d0df92223018b32b4d1fa46e071723d6817e2486d003becc55f00;

    function _getReentrancyGuardStorage() private pure returns (ReentrancyGuardStorage storage $) {
        assembly {
            $.slot := ReentrancyGuardStorageLocation
        }
    }

    /**
     * @dev Unauthorized reentrant call.
     */
    error ReentrancyGuardReentrantCall();

    function __ReentrancyGuard_init() internal onlyInitializing {
        __ReentrancyGuard_init_unchained();
    }

    function __ReentrancyGuard_init_unchained() internal onlyInitializing {
        ReentrancyGuardStorage storage $ = _getReentrancyGuardStorage();
        $._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 {
        ReentrancyGuardStorage storage $ = _getReentrancyGuardStorage();
        // On the first call to nonReentrant, _status will be NOT_ENTERED
        if ($._status == ENTERED) {
            revert ReentrancyGuardReentrantCall();
        }

        // Any calls to nonReentrant after this point will fail
        $._status = ENTERED;
    }

    function _nonReentrantAfter() private {
        ReentrancyGuardStorage storage $ = _getReentrancyGuardStorage();
        // 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) {
        ReentrancyGuardStorage storage $ = _getReentrancyGuardStorage();
        return $._status == ENTERED;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/Address.sol)

pragma solidity ^0.8.20;

/**
 * @dev Collection of functions related to the address type
 */
library Address {
    /**
     * @dev The ETH balance of the account is not enough to perform the operation.
     */
    error AddressInsufficientBalance(address account);

    /**
     * @dev There's no code at `target` (it is not a contract).
     */
    error AddressEmptyCode(address target);

    /**
     * @dev A call to an address target failed. The target may have reverted.
     */
    error FailedInnerCall();

    /**
     * @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/v0.8.20/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
     */
    function sendValue(address payable recipient, uint256 amount) internal {
        if (address(this).balance < amount) {
            revert AddressInsufficientBalance(address(this));
        }

        (bool success, ) = recipient.call{value: amount}("");
        if (!success) {
            revert FailedInnerCall();
        }
    }

    /**
     * @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 or custom error, it is bubbled
     * up by this function (like regular Solidity function calls). However, if
     * the call reverted with no returned reason, this function reverts with a
     * {FailedInnerCall} error.
     *
     * 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.
     */
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0);
    }

    /**
     * @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`.
     */
    function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
        if (address(this).balance < value) {
            revert AddressInsufficientBalance(address(this));
        }
        (bool success, bytes memory returndata) = target.call{value: value}(data);
        return verifyCallResultFromTarget(target, success, returndata);
    }

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

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

    /**
     * @dev Tool to verify that a low level call to smart-contract was successful, and reverts if the target
     * was not a contract or bubbling up the revert reason (falling back to {FailedInnerCall}) in case of an
     * unsuccessful call.
     */
    function verifyCallResultFromTarget(
        address target,
        bool success,
        bytes memory returndata
    ) internal view returns (bytes memory) {
        if (!success) {
            _revert(returndata);
        } else {
            // only check if target is a contract if the call was successful and the return data is empty
            // otherwise we already know that it was a contract
            if (returndata.length == 0 && target.code.length == 0) {
                revert AddressEmptyCode(target);
            }
            return returndata;
        }
    }

    /**
     * @dev Tool to verify that a low level call was successful, and reverts if it wasn't, either by bubbling the
     * revert reason or with a default {FailedInnerCall} error.
     */
    function verifyCallResult(bool success, bytes memory returndata) internal pure returns (bytes memory) {
        if (!success) {
            _revert(returndata);
        } else {
            return returndata;
        }
    }

    /**
     * @dev Reverts with returndata if present. Otherwise reverts with {FailedInnerCall}.
     */
    function _revert(bytes memory returndata) 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 FailedInnerCall();
        }
    }
}

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

import "@openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol";

import "./lib/Message.sol";

import "./interface/IHyperlaneClient.sol";
import "./interface/IMailbox.sol";
import "./interface/IZeroWayNFT.sol";

contract HyperlaneClient is Initializable, IHyperlaneClient {
    event SetMailbox(address indexed sender, address indexed mailbox);
    event ReceivedMessage(address indexed msgSender, uint32 indexed origin, bytes32 indexed sender, bytes data);

    address public mailboxAddr;
    address public user;

    modifier onlyMailbox() {
        require(msg.sender == address(mailboxAddr), "HyperlaneClient: sender not mailbox");
        _;
    }

    modifier onlyUser() {
        require(msg.sender == address(user), "HyperlaneClient: sender not user");
        _;
    }

    function initialize(address mailbox) external override initializer {
        mailboxAddr = mailbox;
        user = msg.sender;
    }

    function setMailbox(address newMailbox) external override onlyUser {
        mailboxAddr = newMailbox;

        emit SetMailbox({sender: msg.sender, mailbox: mailboxAddr});
    }

    function handle(uint32 origin_, bytes32 sender_, bytes calldata data_) external payable onlyMailbox {
        emit ReceivedMessage({msgSender: msg.sender, origin: origin_, sender: sender_, data: data_});

        IZeroWayNFT(user).handle{value: msg.value}(origin_, sender_, data_);
    }
}

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

interface IHyperlaneClient {
    // function mailboxAddr() external view returns( address);

    // function user() external view returns (address);

    function initialize(address mailbox) external;

    function setMailbox(address newMailbox) external;

    function handle(uint32 origin_, bytes32 sender_, bytes calldata data_) external payable;
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.20;
interface IMailbox {
    event Dispatch(address indexed sender, uint32 indexed destination, bytes32 indexed recipient, bytes message);

    function dispatch(
        uint32 destinationDomain,
        bytes32 recipientAddress,
        bytes calldata messageBody
    ) external payable returns (bytes32 messageId);

    // /**
    //  * @notice Emitted when a new message is dispatched via Hyperlane
    //  * @param messageId The unique message identifier
    //  */
    // event DispatchId(bytes32 indexed messageId);

    // /**
    //  * @notice Emitted when a Hyperlane message is processed
    //  * @param messageId The unique message identifier
    //  */
    // event ProcessId(bytes32 indexed messageId);

    // /**
    //  * @notice Emitted when a Hyperlane message is delivered
    //  * @param origin The origin domain of the message
    //  * @param sender The message sender address on `origin`
    //  * @param recipient The address that handled the message
    //  */
    // event Process(
    //     uint32 indexed origin,
    //     bytes32 indexed sender,
    //     address indexed recipient
    // );

    // function localDomain() external view returns (uint32);

    function delivered(bytes32 messageId) external view returns (bool);

    // function defaultIsm() external view returns (IInterchainSecurityModule);

    // function defaultHook() external view returns (IPostDispatchHook);

    // function requiredHook() external view returns (IPostDispatchHook);

    // function latestDispatchedId() external view returns (bytes32);

    // function dispatch(
    //     uint32 destinationDomain,
    //     bytes32 recipientAddress,
    //     bytes calldata messageBody
    // ) external payable returns (bytes32 messageId);

    function quoteDispatch(
        uint32 destinationDomain,
        bytes32 recipientAddress,
        bytes calldata messageBody
    ) external view returns (uint256 fee);

    function dispatch(
        uint32 destinationDomain,
        bytes32 recipientAddress,
        bytes calldata body,
        bytes calldata defaultHookMetadata
    ) external payable returns (bytes32 messageId);

    function quoteDispatch(
        uint32 destinationDomain,
        bytes32 recipientAddress,
        bytes calldata messageBody,
        bytes calldata defaultHookMetadata
    ) external view returns (uint256 fee);

    // function dispatch(
    //     uint32 destinationDomain,
    //     bytes32 recipientAddress,
    //     bytes calldata body,
    //     bytes calldata customHookMetadata,
    //     IPostDispatchHook customHook
    // ) external payable returns (bytes32 messageId);

    // function quoteDispatch(
    //     uint32 destinationDomain,
    //     bytes32 recipientAddress,
    //     bytes calldata messageBody,
    //     bytes calldata customHookMetadata,
    //     IPostDispatchHook customHook
    // ) external view returns (uint256 fee);

    // function process(
    //     bytes calldata metadata,
    //     bytes calldata message
    // ) external payable;

    // function recipientIsm(
    //     address recipient
    // ) external view returns (IInterchainSecurityModule module);
}

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

interface IZeroWayNFT {
    // function nextTokenId() external view returns (uint256);

    // function mintFee() external view returns (uint256);

    // function hyperlaneClient() external view returns (address);

    // function mailboxAddr() external view returns (address);

    // function uri() external view returns (string memory);

    // function bridgeFee() external view returns (uint256);

    function initialize(
        address initialOwner_,
        uint256 initialTokenId_,
        uint256 mintFee_,
        address mailboxAddr_,
        address hyperlaneClient_,
        string memory uri_
    ) external;

    function mint(address target_) external payable returns (uint256);

    function bridge(uint256 tokenId_, uint32 destinationDomain_) external payable returns (uint256, bytes32);

    function handle(uint32 origin_, bytes32 sender_, bytes calldata data_) external payable;

    function setURI(string memory uri_) external;

    function setMintFee(uint256 mintFee_) external;

    function setBridgeFee(uint256 bridgeFee_) external;

    function withdrawETH(address to_, uint256 amount_) external;

    function calculateBridgeFee(uint256 tokenId_, uint32 destinationDomain_) external view returns (uint256);

    function calculateHyperlaneFee(uint256 tokenId_, uint32 destinationDomain_) external view returns (uint256);
}

// SPDX-License-Identifier: MIT

pragma solidity 0.8.20;

import {TypeCasts} from "./TypeCasts.sol";

/**
 * @title Hyperlane Message Library
 * @notice Library for formatted messages used by Mailbox
 **/
library Message {
    using TypeCasts for bytes32;

    uint256 private constant VERSION_OFFSET = 0;
    uint256 private constant NONCE_OFFSET = 1;
    uint256 private constant ORIGIN_OFFSET = 5;
    uint256 private constant SENDER_OFFSET = 9;
    uint256 private constant DESTINATION_OFFSET = 41;
    uint256 private constant RECIPIENT_OFFSET = 45;
    uint256 private constant BODY_OFFSET = 77;

    /**
     * @notice Returns formatted (packed) Hyperlane message with provided fields
     * @dev This function should only be used in memory message construction.
     * @param _version The version of the origin and destination Mailboxes
     * @param _nonce A nonce to uniquely identify the message on its origin chain
     * @param _originDomain Domain of origin chain
     * @param _sender Address of sender as bytes32
     * @param _destinationDomain Domain of destination chain
     * @param _recipient Address of recipient on destination chain as bytes32
     * @param _messageBody Raw bytes of message body
     * @return Formatted message
     */
    function formatMessage(
        uint8 _version,
        uint32 _nonce,
        uint32 _originDomain,
        bytes32 _sender,
        uint32 _destinationDomain,
        bytes32 _recipient,
        bytes calldata _messageBody
    ) internal pure returns (bytes memory) {
        return
            abi.encodePacked(
                _version,
                _nonce,
                _originDomain,
                _sender,
                _destinationDomain,
                _recipient,
                _messageBody
            );
    }

    /**
     * @notice Returns the message ID.
     * @param _message ABI encoded Hyperlane message.
     * @return ID of `_message`
     */
    function id(bytes memory _message) internal pure returns (bytes32) {
        return keccak256(_message);
    }

    /**
     * @notice Returns the message version.
     * @param _message ABI encoded Hyperlane message.
     * @return Version of `_message`
     */
    function version(bytes calldata _message) internal pure returns (uint8) {
        return uint8(bytes1(_message[VERSION_OFFSET:NONCE_OFFSET]));
    }

    /**
     * @notice Returns the message nonce.
     * @param _message ABI encoded Hyperlane message.
     * @return Nonce of `_message`
     */
    function nonce(bytes calldata _message) internal pure returns (uint32) {
        return uint32(bytes4(_message[NONCE_OFFSET:ORIGIN_OFFSET]));
    }

    /**
     * @notice Returns the message origin domain.
     * @param _message ABI encoded Hyperlane message.
     * @return Origin domain of `_message`
     */
    function origin(bytes calldata _message) internal pure returns (uint32) {
        return uint32(bytes4(_message[ORIGIN_OFFSET:SENDER_OFFSET]));
    }

    /**
     * @notice Returns the message sender as bytes32.
     * @param _message ABI encoded Hyperlane message.
     * @return Sender of `_message` as bytes32
     */
    function sender(bytes calldata _message) internal pure returns (bytes32) {
        return bytes32(_message[SENDER_OFFSET:DESTINATION_OFFSET]);
    }

    /**
     * @notice Returns the message sender as address.
     * @param _message ABI encoded Hyperlane message.
     * @return Sender of `_message` as address
     */
    function senderAddress(
        bytes calldata _message
    ) internal pure returns (address) {
        return sender(_message).bytes32ToAddress();
    }

    /**
     * @notice Returns the message destination domain.
     * @param _message ABI encoded Hyperlane message.
     * @return Destination domain of `_message`
     */
    function destination(
        bytes calldata _message
    ) internal pure returns (uint32) {
        return uint32(bytes4(_message[DESTINATION_OFFSET:RECIPIENT_OFFSET]));
    }

    /**
     * @notice Returns the message recipient as bytes32.
     * @param _message ABI encoded Hyperlane message.
     * @return Recipient of `_message` as bytes32
     */
    function recipient(
        bytes calldata _message
    ) internal pure returns (bytes32) {
        return bytes32(_message[RECIPIENT_OFFSET:BODY_OFFSET]);
    }

    /**
     * @notice Returns the message recipient as address.
     * @param _message ABI encoded Hyperlane message.
     * @return Recipient of `_message` as address
     */
    function recipientAddress(
        bytes calldata _message
    ) internal pure returns (address) {
        return recipient(_message).bytes32ToAddress();
    }

    /**
     * @notice Returns the message body.
     * @param _message ABI encoded Hyperlane message.
     * @return Body of `_message`
     */
    function body(
        bytes calldata _message
    ) internal pure returns (bytes calldata) {
        return bytes(_message[BODY_OFFSET:]);
    }
}

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

library TypeCasts {
    // alignment preserving cast
    function addressToBytes32(address _addr) internal pure returns (bytes32) {
        return bytes32(uint256(uint160(_addr)));
    }

    // alignment preserving cast
    function bytes32ToAddress(bytes32 _buf) internal pure returns (address) {
        return address(uint160(uint256(_buf)));
    }
}

{
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "evmVersion": "paris",
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "libraries": {}
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• No Contract Security Audit Submitted- Submit Audit Here

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