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// SPDX-License-Identifier: Apache 2
pragma solidity ^0.8.19;

import "openzeppelin-contracts/contracts/token/ERC20/IERC20.sol";
import "openzeppelin-contracts/contracts/token/ERC20/utils/SafeERC20.sol";
import {normalizeAmount, deNormalizeAmount} from "wormhole-solidity-sdk/utils/DecimalNormalization.sol";

import "./interfaces/ITokenBridgeRelayer.sol";
import "./interfaces/ITokenBridgeRelayerWithReferrer.sol";

string constant tokenBridgeRelayerWithReferrerVersion = "TokenBridgeRelayerWithReferrer-0.0.1";

/// @title TokenBridgeRelayerWithReferrer
/// @author Wormhole Project Contributors.
/// @notice The TokenBridgeRelayerWithReferrer contract is a shim contract that initiates
///         a transfer using the token bridge relayer and allows a fee to be paid to a referrer.
contract TokenBridgeRelayerWithReferrer is ITokenBridgeRelayerWithReferrer {
    // ==================== External Interface ===============================================

    /// @inheritdoc ITokenBridgeRelayerWithReferrer
    function transferTokensWithRelay(
        address tokenBridgeRelayer,
        address token,
        uint256 amount,
        uint16 targetChain,
        bytes32 targetRecipient,
        uint32 nonce,
        bytes32 dstTransferRecipient,
        bytes32 dstExecutionAddress,
        uint256 executionAmount,
        address refundAddr,
        bytes calldata signedQuoteBytes,
        bytes calldata relayInstructions,
        FeeArgs calldata feeArgs
    ) external payable returns (uint64 messageSequence) {
        ITokenBridgeRelayer tbr = ITokenBridgeRelayer(tokenBridgeRelayer);
        uint8 decimals = _getDecimals(token);

        // Trim any dust.
        amount = _trim(decimals, amount);

        // Custody the tokens in this contract and approve the token bridge relayer to spend them.
        amount = _custodyTokens(token, amount);

        // Transfer the fee to the referrer.
        amount = _payFee(token, decimals, feeArgs, amount);

        // Approve the token bridge relayer to spend the tokens.
        SafeERC20.safeApprove(IERC20(token), tokenBridgeRelayer, amount);

        // Initiate the transfer.
        messageSequence = tbr.transferTokensWithRelay{value: msg.value}(
            token,
            amount,
            targetChain,
            targetRecipient,
            nonce,
            dstTransferRecipient,
            dstExecutionAddress,
            executionAmount,
            refundAddr,
            signedQuoteBytes,
            relayInstructions
        );
    }

    /// @inheritdoc ITokenBridgeRelayerWithReferrer
    function wrapAndTransferEthWithRelay(
        address tokenBridgeRelayer,
        uint256 amount,
        uint16 targetChain,
        bytes32 targetRecipient,
        uint32 nonce,
        bytes32 dstTransferRecipient,
        bytes32 dstExecutionAddress,
        uint256 executionAmount,
        address refundAddr,
        bytes calldata signedQuoteBytes,
        bytes calldata relayInstructions,
        FeeArgs calldata feeArgs
    ) external payable returns (uint64 messageSequence) {
        ITokenBridgeRelayer tbr = ITokenBridgeRelayer(tokenBridgeRelayer);
        require(tbr.unwrapWeth(), "WETH functionality not supported");
        IWETH weth = tbr.weth();
        address token = address(weth);
        require(token != address(0), "WETH does not exist");
        uint8 decimals = _getDecimals(token);

        // This requires the amount + wormhole fee + executionAmount to exactly equal msg.value
        // because `transferTokensWithRelay` will revert if there is any extra.
        require(msg.value > amount, "Not enough msg value");
        uint256 remainingValue = msg.value - amount;

        // Trim any dust.
        amount = _trim(decimals, amount);

        // Deposit the amount to be transferred into WETH.
        weth.deposit{value: amount}();

        // Transfer the fee to the referrer.
        amount = _payFee(token, decimals, feeArgs, amount);

        // Approve the token bridge relayer to spend the tokens.
        SafeERC20.safeApprove(IERC20(token), tokenBridgeRelayer, amount);

        // Initiate the wrapped transfer.
        messageSequence = tbr.transferTokensWithRelay{value: remainingValue}(
            token,
            amount,
            targetChain,
            targetRecipient,
            nonce,
            dstTransferRecipient,
            dstExecutionAddress,
            executionAmount,
            refundAddr,
            signedQuoteBytes,
            relayInstructions
        );

        // Refund any excess value.
        uint256 currentBalance = address(this).balance;
        if (currentBalance > 0) {
            (bool refundSuccessful,) = payable(refundAddr).call{value: currentBalance}("");
            if (!refundSuccessful) {
                revert RefundFailed(currentBalance);
            }
        }
    }

    // ==================== Internal Functions ==============================================

    function _custodyTokens(address token, uint256 amount) internal returns (uint256) {
        // query own token balance before transfer
        uint256 balanceBefore = _getBalance(token);

        // deposit tokens
        SafeERC20.safeTransferFrom(IERC20(token), msg.sender, address(this), amount);

        // return the balance difference
        return _getBalance(token) - balanceBefore;
    }

    // @dev The fee is calculated as a percentage of the amount being transferred.
    function _payFee(address token, uint8 decimals, FeeArgs memory feeArgs, uint256 amount)
        internal
        returns (uint256)
    {
        // Compute the fee in tenths of basis points and trim any dust.
        uint256 fee = calculateFee(amount, feeArgs.dbps);
        fee = _trim(decimals, fee);

        // If there is a fee, transfer it to the payee.
        if (fee > 0) {
            // Don't need to check for fee greater than or equal to amount because it can never be (since dbps is a uint16).
            amount -= fee;
            SafeERC20.safeTransfer(IERC20(token), feeArgs.payee, fee);
        }

        return amount;
    }

    function calculateFee(uint256 amount, uint16 dbps) public pure returns (uint256 fee) {
        unchecked {
            uint256 q = amount / 100000;
            uint256 r = amount % 100000;
            fee = q * dbps + (r * dbps) / 100000;
        }
    }

    function _getBalance(address token) internal view returns (uint256 balance) {
        // fetch the specified token balance for this contract
        (, bytes memory queriedBalance) =
            token.staticcall(abi.encodeWithSelector(IERC20.balanceOf.selector, address(this)));
        balance = abi.decode(queriedBalance, (uint256));
    }

    function _trim(uint8 decimals, uint256 amount) internal pure returns (uint256) {
        return deNormalizeAmount(normalizeAmount(amount, decimals), decimals);
    }

    function _getDecimals(address token) internal view returns (uint8) {
        (, bytes memory queriedDecimals) = token.staticcall(abi.encodeWithSignature("decimals()"));
        return abi.decode(queriedDecimals, (uint8));
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (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);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (token/ERC20/utils/SafeERC20.sol)

pragma solidity ^0.8.0;

import "../IERC20.sol";
import "../extensions/draft-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;

    function safeTransfer(
        IERC20 token,
        address to,
        uint256 value
    ) internal {
        _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
    }

    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));
    }

    function safeIncreaseAllowance(
        IERC20 token,
        address spender,
        uint256 value
    ) internal {
        uint256 newAllowance = token.allowance(address(this), spender) + value;
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
    }

    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");
            uint256 newAllowance = oldAllowance - value;
            _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
        }
    }

    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");
        if (returndata.length > 0) {
            // Return data is optional
            require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
        }
    }
}

// SPDX-License-Identifier: Apache 2
pragma solidity ^0.8.4;

uint constant TOKEN_BRIDGE_NORMALIZED_DECIMALS = 8;

function normalizeAmount(uint amount, uint decimals) pure returns (uint) { unchecked {
  if (decimals > TOKEN_BRIDGE_NORMALIZED_DECIMALS)
    amount /= 10 ** (decimals - TOKEN_BRIDGE_NORMALIZED_DECIMALS);

  return amount;
}}

function deNormalizeAmount(uint amount, uint decimals) pure returns (uint) { unchecked {
  if (decimals > TOKEN_BRIDGE_NORMALIZED_DECIMALS)
    amount *= 10 ** (decimals - TOKEN_BRIDGE_NORMALIZED_DECIMALS);

  return amount;
}}

// SPDX-License-Identifier: Apache 2

pragma solidity ^0.8.17;

import "./IWETH.sol";

/// @notice This only contains what is used by `TokenBridgeRelayerWithReferrer`.
interface ITokenBridgeRelayer {
    /**
     * @notice Calls Wormhole's Token Bridge contract to emit a contract-controlled
     *         transfer. The transfer message includes the target recipient on the destination chain.
     * @param token ERC20 token address to transfer cross chain.
     * @param amount Quantity of tokens to be transferred.
     * @param targetChain Wormhole chain ID of the target blockchain.
     * @param targetRecipient User's wallet address on the target blockchain in bytes32 format
     * (zero-left-padded).
     * @param nonce Wormhole message nonce
     * @param dstTransferRecipient Token Bridge payload 3 recipient
     * @param dstExecutionAddress Executor destination address
     * @param executionAmount msg.value to be sent to the execution payee
     * @param refundAddr Executor refund address on this chain
     * @param signedQuoteBytes Executor signed quote
     * @param relayInstructions Executor relay instructions
     * @return messageSequence Wormhole sequence for emitted TransferTokensWithRelay message.
     */
    function transferTokensWithRelay(
        address token,
        uint256 amount,
        uint16 targetChain,
        bytes32 targetRecipient,
        uint32 nonce,
        bytes32 dstTransferRecipient,
        bytes32 dstExecutionAddress,
        uint256 executionAmount,
        address refundAddr,
        bytes calldata signedQuoteBytes,
        bytes calldata relayInstructions
    ) external payable returns (uint64 messageSequence);

    function unwrapWeth() external returns (bool);
    function weth() external returns (IWETH);
}

// SPDX-License-Identifier: Apache 2
pragma solidity ^0.8.19;

struct FeeArgs {
    // The fee in tenths of basis points.
    uint16 dbps;
    // To whom the fee should be paid (the "referrer").
    address payee;
}

interface ITokenBridgeRelayerWithReferrer {
    /// @notice Error when the refund to the sender fails.
    /// @dev Selector 0x2ca23714.
    /// @param refundAmount The refund amount.
    error RefundFailed(uint256 refundAmount);

    /// @notice Error when paying the fee fails.
    /// @dev Selector 0xd1b3877a.
    /// @param fee The fee amount.
    error FeePayFailed(uint256 fee);

    /**
     * @notice Calls Wormhole's Token Bridge contract to emit a contract-controlled
     *         transfer. The transfer message includes the target recipient on the destination chain.
     * @param tokenBridgeRelayer The token bridge relayer to handle the transaction
     * @param token ERC20 token address to transfer cross chain.
     * @param amount Quantity of tokens to be transferred.
     * @param targetChain Wormhole chain ID of the target blockchain.
     * @param targetRecipient User's wallet address on the target blockchain in bytes32 format (zero-left-padded).
     * @param nonce Wormhole message nonce
     * @param dstTransferRecipient Token Bridge payload 3 recipient
     * @param dstExecutionAddress Executor destination address
     * @param executionAmount msg.value to be sent to the execution payee
     * @param refundAddr Executor refund address on this chain
     * @param signedQuoteBytes Executor signed quote
     * @param relayInstructions Executor relay instructions
     * @param feeArgs The arguments used to compute and pay the referrer fee.
     * @return messageSequence Wormhole sequence for emitted TransferTokensWithRelay message.
     */
    function transferTokensWithRelay(
        address tokenBridgeRelayer,
        address token,
        uint256 amount,
        uint16 targetChain,
        bytes32 targetRecipient,
        uint32 nonce,
        bytes32 dstTransferRecipient,
        bytes32 dstExecutionAddress,
        uint256 executionAmount,
        address refundAddr,
        bytes calldata signedQuoteBytes,
        bytes calldata relayInstructions,
        FeeArgs calldata feeArgs
    ) external payable returns (uint64 messageSequence);

    /**
     * @notice Wraps Ether and calls Wormhole's Token Bridge contract to emit
     * a contract-controlled transfer. The transfer message includes an arbitrary
     * payload with instructions for how to handle relayer payments on the target
     * contract and the quantity of tokens to convert into native assets for the user.
     * @param tokenBridgeRelayer The token bridge relayer to handle the transaction
     * @param amount Quantity of tokens to be transferred.
     * @param targetChain Wormhole chain ID of the target blockchain.
     * @param targetRecipient User's wallet address on the target blockchain in bytes32 format
     * (zero-left-padded).
     * @param nonce Wormhole message nonce
     * @param dstTransferRecipient Token Bridge payload 3 recipient
     * @param dstExecutionAddress Executor destination address
     * @param executionAmount msg.value to be sent to the execution payee
     * @param refundAddr Executor refund address on this chain
     * @param signedQuoteBytes Executor signed quote
     * @param relayInstructions Executor relay instructions
     * @param feeArgs The arguments used to compute and pay the referrer fee.
     * @return messageSequence Wormhole sequence for emitted TransferTokensWithRelay message.
     */
    function wrapAndTransferEthWithRelay(
        address tokenBridgeRelayer,
        uint256 amount,
        uint16 targetChain,
        bytes32 targetRecipient,
        uint32 nonce,
        bytes32 dstTransferRecipient,
        bytes32 dstExecutionAddress,
        uint256 executionAmount,
        address refundAddr,
        bytes calldata signedQuoteBytes,
        bytes calldata relayInstructions,
        FeeArgs calldata feeArgs
    ) external payable returns (uint64 messageSequence);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/draft-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.
 */
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].
     */
    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);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (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
     * ====
     *
     * [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://diligence.consensys.net/posts/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/v0.5.11/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);
        }
    }
}

// SPDX-License-Identifier: Apache 2

pragma solidity ^0.8.17;

import "openzeppelin-contracts/contracts/token/ERC20/IERC20.sol";

interface IWETH is IERC20 {
    function deposit() external payable;
    function withdraw(uint256 amount) external;
    function balanceOf() external returns (uint256);
}

{
  "remappings": [
    "IERC20/=lib/wormhole-solidity-sdk/src/interfaces/token/",
    "SafeERC20/=lib/wormhole-solidity-sdk/src/libraries/",
    "ds-test/=lib/wormhole-solidity-sdk/lib/forge-std/lib/ds-test/src/",
    "forge-std/=lib/forge-std/src/",
    "openzeppelin-contracts/=lib/openzeppelin-contracts/",
    "wormhole-sdk/=lib/wormhole-solidity-sdk/src/",
    "wormhole-solidity-sdk/=lib/wormhole-solidity-sdk/src/"
  ],
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "metadata": {
    "useLiteralContent": false,
    "bytecodeHash": "ipfs",
    "appendCBOR": true
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "evmVersion": "london",
  "viaIR": true,
  "libraries": {}
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[{"internalType":"uint256","name":"fee","type":"uint256"}],"name":"FeePayFailed","type":"error"},{"inputs":[{"internalType":"uint256","name":"refundAmount","type":"uint256"}],"name":"RefundFailed","type":"error"},{"inputs":[{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"uint16","name":"dbps","type":"uint16"}],"name":"calculateFee","outputs":[{"internalType":"uint256","name":"fee","type":"uint256"}],"stateMutability":"pure","type":"function"},{"inputs":[{"internalType":"address","name":"tokenBridgeRelayer","type":"address"},{"internalType":"address","name":"token","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"uint16","name":"targetChain","type":"uint16"},{"internalType":"bytes32","name":"targetRecipient","type":"bytes32"},{"internalType":"uint32","name":"nonce","type":"uint32"},{"internalType":"bytes32","name":"dstTransferRecipient","type":"bytes32"},{"internalType":"bytes32","name":"dstExecutionAddress","type":"bytes32"},{"internalType":"uint256","name":"executionAmount","type":"uint256"},{"internalType":"address","name":"refundAddr","type":"address"},{"internalType":"bytes","name":"signedQuoteBytes","type":"bytes"},{"internalType":"bytes","name":"relayInstructions","type":"bytes"},{"components":[{"internalType":"uint16","name":"dbps","type":"uint16"},{"internalType":"address","name":"payee","type":"address"}],"internalType":"struct FeeArgs","name":"feeArgs","type":"tuple"}],"name":"transferTokensWithRelay","outputs":[{"internalType":"uint64","name":"messageSequence","type":"uint64"}],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"tokenBridgeRelayer","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"uint16","name":"targetChain","type":"uint16"},{"internalType":"bytes32","name":"targetRecipient","type":"bytes32"},{"internalType":"uint32","name":"nonce","type":"uint32"},{"internalType":"bytes32","name":"dstTransferRecipient","type":"bytes32"},{"internalType":"bytes32","name":"dstExecutionAddress","type":"bytes32"},{"internalType":"uint256","name":"executionAmount","type":"uint256"},{"internalType":"address","name":"refundAddr","type":"address"},{"internalType":"bytes","name":"signedQuoteBytes","type":"bytes"},{"internalType":"bytes","name":"relayInstructions","type":"bytes"},{"components":[{"internalType":"uint16","name":"dbps","type":"uint16"},{"internalType":"address","name":"payee","type":"address"}],"internalType":"struct FeeArgs","name":"feeArgs","type":"tuple"}],"name":"wrapAndTransferEthWithRelay","outputs":[{"internalType":"uint64","name":"messageSequence","type":"uint64"}],"stateMutability":"payable","type":"function"}]

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