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// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity ^0.8.12;

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

import "./TokenUtils.sol";

/// Represents a contract call.
struct Call {
    /// Address of the contract to call.
    address to;
    /// Native token amount for call, or 0
    uint256 value;
    /// Calldata for call
    bytes data;
}

/// @author Daimo, Inc
/// @custom:security-contact security@daimo.com
/// @notice This contract is used to execute arbitrary contract calls on behalf
/// of the DaimoPay escrow contract.
/// WARNING: Never approve tokens directly to this contract. Never transfer
/// tokens to this contract. Such tokens can be stolen by anyone. All
/// interactions with this contract should be done via the DaimoPay contract.
contract DaimoPayExecutor is ReentrancyGuard {
    using SafeERC20 for IERC20;

    /// The only address that is allowed to call the `execute` function.
    address public immutable escrow;

    constructor(address _escrow) {
        escrow = _escrow;
    }

    /// Execute arbitrary calls. Revert if any fail.
    /// Check that at least one of the expectedOutput tokens is present. Assumes
    /// that exactly one token is present and transfers it to the recipient.
    /// Returns any surplus tokens to the surplus recipient.
    function execute(
        Call[] calldata calls,
        TokenAmount[] calldata expectedOutput,
        address payable recipient,
        address payable surplusRecipient
    ) external nonReentrant {
        require(msg.sender == escrow, "DPCE: only escrow");

        // Execute provided calls.
        uint256 callsLength = calls.length;
        for (uint256 i = 0; i < callsLength; ++i) {
            Call calldata call = calls[i];
            (bool success, ) = call.to.call{value: call.value}(call.data);
            require(success, "DPCE: call failed");
        }

        /// Check that at least one of the expectedOutput tokens is present
        /// with enough balance.
        uint256 outputIndex = TokenUtils.checkBalance({
            tokenAmounts: expectedOutput
        });
        require(
            outputIndex < expectedOutput.length,
            "DPCE: insufficient output"
        );

        // Transfer the expected amount of the token to the recipient.
        TokenUtils.transfer({
            token: expectedOutput[outputIndex].token,
            recipient: recipient,
            amount: expectedOutput[outputIndex].amount
        });

        // Transfer any surplus tokens to the surplus recipient.
        TokenUtils.transferBalance({
            token: expectedOutput[outputIndex].token,
            recipient: surplusRecipient
        });
    }

    /// Execute arbitrary calls. Revert if any fail.
    /// Verify output token balance meets the expected minimum amount.
    /// Transfer the full balance to the recipient and return the amount.
    function executeAndSendBalance(
        Call[] calldata calls,
        TokenAmount calldata minOutputAmount,
        address payable recipient
    ) external nonReentrant returns (uint256 outputAmount) {
        require(msg.sender == escrow, "DPCE: only escrow");

        // Execute provided calls.
        uint256 callsLength = calls.length;
        for (uint256 i = 0; i < callsLength; ++i) {
            Call calldata call = calls[i];
            (bool success, ) = call.to.call{value: call.value}(call.data);
            require(success, "DPCE: call failed");
        }

        outputAmount = TokenUtils.getBalanceOf({
            token: minOutputAmount.token,
            addr: address(this)
        });
        require(
            outputAmount >= minOutputAmount.amount,
            "DPCE: output below min"
        );

        // Transfer the full balance of the token to the recipient.
        TokenUtils.transfer({
            token: minOutputAmount.token,
            recipient: recipient,
            amount: outputAmount
        });
    }

    /// Execute a final call. Approve the final token and make the call.
    /// Return whether the call succeeded.
    function executeFinalCall(
        Call calldata finalCall,
        TokenAmount calldata finalCallToken,
        address payable refundAddr
    ) external nonReentrant returns (bool success) {
        require(msg.sender == escrow, "DPCE: only escrow");

        // Approve the final call token to the final call contract.
        TokenUtils.approve({
            token: finalCallToken.token,
            spender: address(finalCall.to),
            amount: finalCallToken.amount
        });

        // Then, execute the final call.
        (success, ) = finalCall.to.call{value: finalCall.value}(finalCall.data);

        // Send any excess funds to the refund address.
        TokenUtils.transferBalance({
            token: finalCallToken.token,
            recipient: refundAddr
        });
    }

    /// Accept native-token (eg ETH) inputs
    receive() external payable {}
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.2.0) (token/ERC20/utils/SafeERC20.sol)

pragma solidity ^0.8.20;

import {IERC20} from "../IERC20.sol";
import {IERC1363} from "../../../interfaces/IERC1363.sol";

/**
 * @title SafeERC20
 * @dev Wrappers around ERC-20 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 {
    /**
     * @dev An operation with an ERC-20 token failed.
     */
    error SafeERC20FailedOperation(address token);

    /**
     * @dev Indicates a failed `decreaseAllowance` request.
     */
    error SafeERC20FailedDecreaseAllowance(address spender, uint256 currentAllowance, uint256 requestedDecrease);

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

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

    /**
     * @dev Variant of {safeTransfer} that returns a bool instead of reverting if the operation is not successful.
     */
    function trySafeTransfer(IERC20 token, address to, uint256 value) internal returns (bool) {
        return _callOptionalReturnBool(token, abi.encodeCall(token.transfer, (to, value)));
    }

    /**
     * @dev Variant of {safeTransferFrom} that returns a bool instead of reverting if the operation is not successful.
     */
    function trySafeTransferFrom(IERC20 token, address from, address to, uint256 value) internal returns (bool) {
        return _callOptionalReturnBool(token, abi.encodeCall(token.transferFrom, (from, to, value)));
    }

    /**
     * @dev Increase the calling contract's allowance toward `spender` by `value`. If `token` returns no value,
     * non-reverting calls are assumed to be successful.
     *
     * IMPORTANT: If the token implements ERC-7674 (ERC-20 with temporary allowance), and if the "client"
     * smart contract uses ERC-7674 to set temporary allowances, then the "client" smart contract should avoid using
     * this function. Performing a {safeIncreaseAllowance} or {safeDecreaseAllowance} operation on a token contract
     * that has a non-zero temporary allowance (for that particular owner-spender) will result in unexpected behavior.
     */
    function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal {
        uint256 oldAllowance = token.allowance(address(this), spender);
        forceApprove(token, spender, oldAllowance + value);
    }

    /**
     * @dev Decrease the calling contract's allowance toward `spender` by `requestedDecrease`. If `token` returns no
     * value, non-reverting calls are assumed to be successful.
     *
     * IMPORTANT: If the token implements ERC-7674 (ERC-20 with temporary allowance), and if the "client"
     * smart contract uses ERC-7674 to set temporary allowances, then the "client" smart contract should avoid using
     * this function. Performing a {safeIncreaseAllowance} or {safeDecreaseAllowance} operation on a token contract
     * that has a non-zero temporary allowance (for that particular owner-spender) will result in unexpected behavior.
     */
    function safeDecreaseAllowance(IERC20 token, address spender, uint256 requestedDecrease) internal {
        unchecked {
            uint256 currentAllowance = token.allowance(address(this), spender);
            if (currentAllowance < requestedDecrease) {
                revert SafeERC20FailedDecreaseAllowance(spender, currentAllowance, requestedDecrease);
            }
            forceApprove(token, spender, currentAllowance - requestedDecrease);
        }
    }

    /**
     * @dev Set the calling contract's allowance toward `spender` to `value`. If `token` returns no value,
     * non-reverting calls are assumed to be successful. Meant to be used with tokens that require the approval
     * to be set to zero before setting it to a non-zero value, such as USDT.
     *
     * NOTE: If the token implements ERC-7674, this function will not modify any temporary allowance. This function
     * only sets the "standard" allowance. Any temporary allowance will remain active, in addition to the value being
     * set here.
     */
    function forceApprove(IERC20 token, address spender, uint256 value) internal {
        bytes memory approvalCall = abi.encodeCall(token.approve, (spender, value));

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

    /**
     * @dev Performs an {ERC1363} transferAndCall, with a fallback to the simple {ERC20} transfer if the target has no
     * code. This can be used to implement an {ERC721}-like safe transfer that rely on {ERC1363} checks when
     * targeting contracts.
     *
     * Reverts if the returned value is other than `true`.
     */
    function transferAndCallRelaxed(IERC1363 token, address to, uint256 value, bytes memory data) internal {
        if (to.code.length == 0) {
            safeTransfer(token, to, value);
        } else if (!token.transferAndCall(to, value, data)) {
            revert SafeERC20FailedOperation(address(token));
        }
    }

    /**
     * @dev Performs an {ERC1363} transferFromAndCall, with a fallback to the simple {ERC20} transferFrom if the target
     * has no code. This can be used to implement an {ERC721}-like safe transfer that rely on {ERC1363} checks when
     * targeting contracts.
     *
     * Reverts if the returned value is other than `true`.
     */
    function transferFromAndCallRelaxed(
        IERC1363 token,
        address from,
        address to,
        uint256 value,
        bytes memory data
    ) internal {
        if (to.code.length == 0) {
            safeTransferFrom(token, from, to, value);
        } else if (!token.transferFromAndCall(from, to, value, data)) {
            revert SafeERC20FailedOperation(address(token));
        }
    }

    /**
     * @dev Performs an {ERC1363} approveAndCall, with a fallback to the simple {ERC20} approve if the target has no
     * code. This can be used to implement an {ERC721}-like safe transfer that rely on {ERC1363} checks when
     * targeting contracts.
     *
     * NOTE: When the recipient address (`to`) has no code (i.e. is an EOA), this function behaves as {forceApprove}.
     * Opposedly, when the recipient address (`to`) has code, this function only attempts to call {ERC1363-approveAndCall}
     * once without retrying, and relies on the returned value to be true.
     *
     * Reverts if the returned value is other than `true`.
     */
    function approveAndCallRelaxed(IERC1363 token, address to, uint256 value, bytes memory data) internal {
        if (to.code.length == 0) {
            forceApprove(token, to, value);
        } else if (!token.approveAndCall(to, value, data)) {
            revert SafeERC20FailedOperation(address(token));
        }
    }

    /**
     * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
     * on the return value: the return value is optional (but if data is returned, it must not be false).
     * @param token The token targeted by the call.
     * @param data The call data (encoded using abi.encode or one of its variants).
     *
     * This is a variant of {_callOptionalReturnBool} that reverts if call fails to meet the requirements.
     */
    function _callOptionalReturn(IERC20 token, bytes memory data) private {
        uint256 returnSize;
        uint256 returnValue;
        assembly ("memory-safe") {
            let success := call(gas(), token, 0, add(data, 0x20), mload(data), 0, 0x20)
            // bubble errors
            if iszero(success) {
                let ptr := mload(0x40)
                returndatacopy(ptr, 0, returndatasize())
                revert(ptr, returndatasize())
            }
            returnSize := returndatasize()
            returnValue := mload(0)
        }

        if (returnSize == 0 ? address(token).code.length == 0 : returnValue != 1) {
            revert SafeERC20FailedOperation(address(token));
        }
    }

    /**
     * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
     * on the return value: the return value is optional (but if data is returned, it must not be false).
     * @param token The token targeted by the call.
     * @param data The call data (encoded using abi.encode or one of its variants).
     *
     * This is a variant of {_callOptionalReturn} that silently catches all reverts and returns a bool instead.
     */
    function _callOptionalReturnBool(IERC20 token, bytes memory data) private returns (bool) {
        bool success;
        uint256 returnSize;
        uint256 returnValue;
        assembly ("memory-safe") {
            success := call(gas(), token, 0, add(data, 0x20), mload(data), 0, 0x20)
            returnSize := returndatasize()
            returnValue := mload(0)
        }
        return success && (returnSize == 0 ? address(token).code.length > 0 : returnValue == 1);
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (utils/ReentrancyGuard.sol)

pragma solidity ^0.8.20;

/**
 * @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 EIP-1153 (transient storage) is available on the chain you're deploying at,
 * consider using {ReentrancyGuardTransient} instead.
 *
 * TIP: If you would like to learn more about reentrancy and alternative ways
 * to protect against it, check out our blog post
 * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].
 */
abstract contract ReentrancyGuard {
    // Booleans are more expensive than uint256 or any type that takes up a full
    // word because each write operation emits an extra SLOAD to first read the
    // slot's contents, replace the bits taken up by the boolean, and then write
    // back. This is the compiler's defense against contract upgrades and
    // pointer aliasing, and it cannot be disabled.

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

    uint256 private _status;

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

    constructor() {
        _status = NOT_ENTERED;
    }

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

    function _nonReentrantBefore() private {
        // On the first call to nonReentrant, _status will be NOT_ENTERED
        if (_status == ENTERED) {
            revert ReentrancyGuardReentrantCall();
        }

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

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

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

// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity ^0.8.12;

import "openzeppelin-contracts/contracts/token/ERC20/IERC20.sol";
import "openzeppelin-contracts/contracts/token/ERC20/extensions/IERC20Metadata.sol";
import "openzeppelin-contracts/contracts/token/ERC20/utils/SafeERC20.sol";

/// Asset amount, e.g. $100 USDC or 0.1 ETH
struct TokenAmount {
    /// Zero address = native asset, e.g. ETH
    IERC20 token;
    uint256 amount;
}

/// Event emitted when native tokens (ETH, etc.) are transferred
event NativeTransfer(address indexed from, address indexed to, uint256 value);

/// Utility functions that work for both ERC20 and native tokens.
library TokenUtils {
    using SafeERC20 for IERC20;

    /// @notice Get decimals for a token, handling native token (address 0)
    /// @param token The token address or zero address for native token
    /// @return decimals 18 for native tokens, otherwise from IERC20Metadata
    function getDecimals(address token) internal view returns (uint256) {
        if (token == address(0)) {
            return 18;
        }
        return IERC20Metadata(token).decimals();
    }

    /// Returns ERC20 or ETH balance.
    function getBalanceOf(
        IERC20 token,
        address addr
    ) internal view returns (uint256) {
        if (address(token) == address(0)) {
            return addr.balance;
        } else {
            return token.balanceOf(addr);
        }
    }

    /// Approves a token transfer.
    function approve(IERC20 token, address spender, uint256 amount) internal {
        if (address(token) != address(0)) {
            token.forceApprove({spender: spender, value: amount});
        } // Do nothing for native token.
    }

    /// Sends an ERC20 or ETH transfer. For ETH, verify call success.
    function transfer(
        IERC20 token,
        address payable recipient,
        uint256 amount
    ) internal {
        if (recipient == address(this)) return; // No-op: tokens already here
        if (address(token) != address(0)) {
            token.safeTransfer({to: recipient, value: amount});
        } else {
            // Native token transfer
            (bool success, ) = recipient.call{value: amount}("");
            require(success, "TokenUtils: ETH transfer failed");
        }
    }

    /// Sends an ERC20 or ETH transfer. Returns true if successful.
    function tryTransfer(
        IERC20 token,
        address payable recipient,
        uint256 amount
    ) internal returns (bool) {
        if (recipient == address(this)) return true; // No-op: tokens already here
        if (address(token) != address(0)) {
            return token.trySafeTransfer({to: recipient, value: amount});
        } else {
            (bool success, ) = recipient.call{value: amount}("");
            return success;
        }
    }

    /// Sends an ERC20 transfer.
    function transferFrom(
        IERC20 token,
        address from,
        address to,
        uint256 amount
    ) internal {
        require(
            address(token) != address(0),
            "TokenUtils: ETH transferFrom must be caller"
        );
        token.safeTransferFrom({from: from, to: to, value: amount});
    }

    /// Sends any token balance in the contract to the recipient.
    function transferBalance(
        IERC20 token,
        address payable recipient
    ) internal returns (uint256) {
        uint256 balance = getBalanceOf({token: token, addr: address(this)});
        if (balance > 0) {
            transfer({token: token, recipient: recipient, amount: balance});
        }
        return balance;
    }

    /// Check that the address has enough of at least one of the tokenAmounts.
    /// Returns the index of the first token that has sufficient balance, or
    /// the length of the tokenAmounts array if no token has sufficient balance.
    function checkBalance(
        TokenAmount[] calldata tokenAmounts
    ) internal view returns (uint256) {
        uint256 n = tokenAmounts.length;
        for (uint256 i = 0; i < n; ++i) {
            TokenAmount calldata tokenAmount = tokenAmounts[i];
            uint256 balance = getBalanceOf({
                token: tokenAmount.token,
                addr: address(this)
            });
            if (balance >= tokenAmount.amount) {
                return i;
            }
        }
        return n;
    }

    /// @notice Converts a token amount between different decimal representations.
    /// @param amount The token amount in the source decimal format.
    /// @param fromDecimals Decimals of the source token (e.g., 6 for USDC).
    /// @param toDecimals Decimals of the destination token (e.g., 18 for DAI).
    /// @param roundUp If true, rounds up when scaling down (losing precision).
    ///        Use true when calculating required input amounts (user pays more).
    ///        Use false when calculating output amounts (user receives less).
    /// @return The converted amount in the destination decimal format.
    function convertTokenAmountDecimals(
        uint256 amount,
        uint256 fromDecimals,
        uint256 toDecimals,
        bool roundUp
    ) internal pure returns (uint256) {
        if (toDecimals == fromDecimals) {
            return amount;
        } else if (toDecimals > fromDecimals) {
            return amount * 10 ** (toDecimals - fromDecimals);
        } else {
            uint256 decimalDiff = fromDecimals - toDecimals;
            uint256 divisor = 10 ** decimalDiff;
            if (roundUp) {
                return (amount + divisor - 1) / divisor;
            } else {
                return amount / divisor;
            }
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.20;

/**
 * @dev Interface of the ERC-20 standard as defined in the ERC.
 */
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 value of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

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

    /**
     * @dev Moves a `value` amount of 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 value) 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 a `value` amount of tokens 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 value) external returns (bool);

    /**
     * @dev Moves a `value` amount of tokens from `from` to `to` using the
     * allowance mechanism. `value` 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 value) external returns (bool);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (interfaces/IERC1363.sol)

pragma solidity ^0.8.20;

import {IERC20} from "./IERC20.sol";
import {IERC165} from "./IERC165.sol";

/**
 * @title IERC1363
 * @dev Interface of the ERC-1363 standard as defined in the https://eips.ethereum.org/EIPS/eip-1363[ERC-1363].
 *
 * Defines an extension interface for ERC-20 tokens that supports executing code on a recipient contract
 * after `transfer` or `transferFrom`, or code on a spender contract after `approve`, in a single transaction.
 */
interface IERC1363 is IERC20, IERC165 {
    /*
     * Note: the ERC-165 identifier for this interface is 0xb0202a11.
     * 0xb0202a11 ===
     *   bytes4(keccak256('transferAndCall(address,uint256)')) ^
     *   bytes4(keccak256('transferAndCall(address,uint256,bytes)')) ^
     *   bytes4(keccak256('transferFromAndCall(address,address,uint256)')) ^
     *   bytes4(keccak256('transferFromAndCall(address,address,uint256,bytes)')) ^
     *   bytes4(keccak256('approveAndCall(address,uint256)')) ^
     *   bytes4(keccak256('approveAndCall(address,uint256,bytes)'))
     */

    /**
     * @dev Moves a `value` amount of tokens from the caller's account to `to`
     * and then calls {IERC1363Receiver-onTransferReceived} on `to`.
     * @param to The address which you want to transfer to.
     * @param value The amount of tokens to be transferred.
     * @return A boolean value indicating whether the operation succeeded unless throwing.
     */
    function transferAndCall(address to, uint256 value) external returns (bool);

    /**
     * @dev Moves a `value` amount of tokens from the caller's account to `to`
     * and then calls {IERC1363Receiver-onTransferReceived} on `to`.
     * @param to The address which you want to transfer to.
     * @param value The amount of tokens to be transferred.
     * @param data Additional data with no specified format, sent in call to `to`.
     * @return A boolean value indicating whether the operation succeeded unless throwing.
     */
    function transferAndCall(address to, uint256 value, bytes calldata data) external returns (bool);

    /**
     * @dev Moves a `value` amount of tokens from `from` to `to` using the allowance mechanism
     * and then calls {IERC1363Receiver-onTransferReceived} on `to`.
     * @param from The address which you want to send tokens from.
     * @param to The address which you want to transfer to.
     * @param value The amount of tokens to be transferred.
     * @return A boolean value indicating whether the operation succeeded unless throwing.
     */
    function transferFromAndCall(address from, address to, uint256 value) external returns (bool);

    /**
     * @dev Moves a `value` amount of tokens from `from` to `to` using the allowance mechanism
     * and then calls {IERC1363Receiver-onTransferReceived} on `to`.
     * @param from The address which you want to send tokens from.
     * @param to The address which you want to transfer to.
     * @param value The amount of tokens to be transferred.
     * @param data Additional data with no specified format, sent in call to `to`.
     * @return A boolean value indicating whether the operation succeeded unless throwing.
     */
    function transferFromAndCall(address from, address to, uint256 value, bytes calldata data) external returns (bool);

    /**
     * @dev Sets a `value` amount of tokens as the allowance of `spender` over the
     * caller's tokens and then calls {IERC1363Spender-onApprovalReceived} on `spender`.
     * @param spender The address which will spend the funds.
     * @param value The amount of tokens to be spent.
     * @return A boolean value indicating whether the operation succeeded unless throwing.
     */
    function approveAndCall(address spender, uint256 value) external returns (bool);

    /**
     * @dev Sets a `value` amount of tokens as the allowance of `spender` over the
     * caller's tokens and then calls {IERC1363Spender-onApprovalReceived} on `spender`.
     * @param spender The address which will spend the funds.
     * @param value The amount of tokens to be spent.
     * @param data Additional data with no specified format, sent in call to `spender`.
     * @return A boolean value indicating whether the operation succeeded unless throwing.
     */
    function approveAndCall(address spender, uint256 value, bytes calldata data) external returns (bool);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (token/ERC20/extensions/IERC20Metadata.sol)

pragma solidity ^0.8.20;

import {IERC20} from "../IERC20.sol";

/**
 * @dev Interface for the optional metadata functions from the ERC-20 standard.
 */
interface IERC20Metadata is IERC20 {
    /**
     * @dev Returns the name of the token.
     */
    function name() external view returns (string memory);

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

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

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (interfaces/IERC20.sol)

pragma solidity ^0.8.20;

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

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (interfaces/IERC165.sol)

pragma solidity ^0.8.20;

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

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (utils/introspection/IERC165.sol)

pragma solidity ^0.8.20;

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

{
  "remappings": [
    "@axelar-network/=lib/axelar-gmp-sdk-solidity/",
    "forge-std/=lib/forge-std/src/",
    "openzeppelin-contracts/=lib/openzeppelin-contracts-upgradeable/lib/openzeppelin-contracts/",
    "@openzeppelin/contracts/=lib/openzeppelin-contracts-upgradeable/lib/openzeppelin-contracts/contracts/",
    "@layerzerolabs/oft-evm/=lib/devtools/packages/oft-evm/",
    "@layerzerolabs/oapp-evm/=lib/devtools/packages/oapp-evm/",
    "@layerzerolabs/lz-evm-protocol-v2/=lib/LayerZero-v2/packages/layerzero-v2/evm/protocol/",
    "@layerzerolabs/lz-evm-messagelib-v2/=lib/LayerZero-v2/packages/layerzero-v2/evm/messagelib/",
    "@layerzerolabs/lz-evm-oapp-v2/=lib/LayerZero-v2/packages/layerzero-v2/evm/oapp/",
    "@stargatefinance/stg-evm-v2/=lib/stargate-v2/packages/stg-evm-v2/",
    "@openzeppelin/contracts-upgradeable/=lib/openzeppelin-contracts-upgradeable/contracts/",
    "LayerZero-v2/=lib/LayerZero-v2/",
    "axelar-gmp-sdk-solidity/=lib/axelar-gmp-sdk-solidity/contracts/",
    "devtools/=lib/devtools/packages/toolbox-foundry/src/",
    "ds-test/=lib/solmate/lib/ds-test/src/",
    "erc4626-tests/=lib/openzeppelin-contracts-upgradeable/lib/erc4626-tests/",
    "halmos-cheatcodes/=lib/openzeppelin-contracts-upgradeable/lib/halmos-cheatcodes/src/",
    "openzeppelin-contracts-upgradeable/=lib/openzeppelin-contracts-upgradeable/",
    "solmate/=lib/solmate/src/",
    "stargate-v2/=lib/stargate-v2/packages/stg-evm-v2/src/"
  ],
  "optimizer": {
    "enabled": true,
    "runs": 999999
  },
  "metadata": {
    "useLiteralContent": false,
    "bytecodeHash": "ipfs",
    "appendCBOR": true
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "evmVersion": "london",
  "viaIR": true
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[{"internalType":"address","name":"_escrow","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"ReentrancyGuardReentrantCall","type":"error"},{"inputs":[{"internalType":"address","name":"token","type":"address"}],"name":"SafeERC20FailedOperation","type":"error"},{"inputs":[],"name":"escrow","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"components":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"},{"internalType":"bytes","name":"data","type":"bytes"}],"internalType":"struct Call[]","name":"calls","type":"tuple[]"},{"components":[{"internalType":"contract IERC20","name":"token","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"internalType":"struct TokenAmount[]","name":"expectedOutput","type":"tuple[]"},{"internalType":"address payable","name":"recipient","type":"address"},{"internalType":"address payable","name":"surplusRecipient","type":"address"}],"name":"execute","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"components":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"},{"internalType":"bytes","name":"data","type":"bytes"}],"internalType":"struct Call[]","name":"calls","type":"tuple[]"},{"components":[{"internalType":"contract IERC20","name":"token","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"internalType":"struct TokenAmount","name":"minOutputAmount","type":"tuple"},{"internalType":"address payable","name":"recipient","type":"address"}],"name":"executeAndSendBalance","outputs":[{"internalType":"uint256","name":"outputAmount","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"components":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"},{"internalType":"bytes","name":"data","type":"bytes"}],"internalType":"struct Call","name":"finalCall","type":"tuple"},{"components":[{"internalType":"contract IERC20","name":"token","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"internalType":"struct TokenAmount","name":"finalCallToken","type":"tuple"},{"internalType":"address payable","name":"refundAddr","type":"address"}],"name":"executeFinalCall","outputs":[{"internalType":"bool","name":"success","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"stateMutability":"payable","type":"receive"}]

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000000000000000000000000b2dafb498057339105c20f1d37f0a70f20bce734

-----Decoded View---------------
Arg [0] : _escrow (address): 0xb2DaFB498057339105c20f1d37f0A70f20bce734

-----Encoded View---------------
1 Constructor Arguments found :
Arg [0] : 000000000000000000000000b2dafb498057339105c20f1d37f0a70f20bce734