SimplifiedSwapRouter

{{
  "language": "Solidity",
  "sources": {
    "src/processor/SwapRouter.sol": {
      "content": "// SPDX-License-Identifier: MIT
pragma solidity ^0.8.26;

import {IERC20} from "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import {SafeERC20} from "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
import {ReentrancyGuard} from "@openzeppelin/contracts/utils/ReentrancyGuard.sol";
import {Ownable} from "@openzeppelin/contracts/access/Ownable.sol";

import {SwapV2, SwapV3} from "../libs/swap/UniSwapper.sol";
import {IWETH} from "../interfaces/IWeth.sol";

/**
 * @title SimplifiedSwapRouter
 * @dev Universal router that supports Uniswap V2 and V3 swaps with fee collection and multi-signature withdrawal
 */
contract SimplifiedSwapRouter is ReentrancyGuard, Ownable {
    using SafeERC20 for IERC20;

    /// @notice Emitted after a successful swap
    event SwapExecuted(
        address indexed user,
        address indexed tokenIn,
        address indexed tokenOut,
        uint256 amountIn,
        uint256 amountOut,
        uint256 feeAmount,
        uint8 routerVersion
    );

    /// @notice Emitted when fees are collected
    event FeesCollected(
        address indexed token,
        uint256 amount,
        address indexed collector
    );

    /// @notice Emitted when fee percentage is updated
    event FeePercentageUpdated(uint256 oldFee, uint256 newFee);

    /// @notice Emitted when a signer is added
    event SignerAdded(address indexed signer);

    /// @notice Emitted when a signer is removed
    event SignerRemoved(address indexed signer);

    /// @notice Emitted when fees are withdrawn via multi-sig
    event FeesWithdrawn(
        address indexed token,
        uint256 amount,
        address indexed to,
        uint256 nonce
    );

    // Custom errors for efficiency
    error DeadlineExpired();
    error InvalidAmount();
    error InvalidAddress();
    error SameToken();
    error InvalidRouterVersion();
    error TransferFailed();
    error InvalidFeePercentage();
    error NotASigner();
    error InvalidSignature();
    error SignatureAlreadyUsed();
    error InsufficientSignatures();
    error InvalidNonce();

    // Router versions
    uint8 constant V2_ROUTER = 2;
    uint8 constant V3_ROUTER = 3;

    // Fee constants
    uint256 public constant MAX_FEE_PERCENTAGE = 1000; // 10% max fee
    uint256 public constant FEE_DENOMINATOR = 10000; // 100% = 10000

    // Router addresses
    address public immutable uniswapV2Router;
    address public immutable uniswapV3Router;
    address public immutable weth;

    // Fee management
    uint256 public feePercentage; // Fee percentage in basis points (100 = 1%)
    mapping(address => uint256) public collectedFees; // token => amount

    // Multi-signature management
    mapping(address => bool) public signers;
    address[] public signersList;
    uint256 public requiredSignatures;
    mapping(uint256 => bool) public usedNonces;
    uint256 public currentNonce;

    // Signature structure for fee withdrawal
    struct WithdrawalSignature {
        address token;
        uint256 amount;
        address to;
        uint256 nonce;
        uint8 v;
        bytes32 r;
        bytes32 s;
    }

    /**
     * @notice Constructs the swap router
     * @param _v2Router Address of the Uniswap V2 router
     * @param _v3Router Address of the Uniswap V3 router
     * @param _weth Address of the WETH contract
     * @param _feePercentage Initial fee percentage in basis points
     * @param _signers Array of initial signers for multi-sig
     * @param _requiredSignatures Number of required signatures for withdrawals
     */
    constructor(
        address _v2Router,
        address _v3Router,
        address _weth,
        uint256 _feePercentage,
        address[] memory _signers,
        uint256 _requiredSignatures
    ) Ownable(msg.sender) {
        require(
            _v2Router != address(0) &&
                _v3Router != address(0) &&
                _weth != address(0),
            "Zero address"
        );
        require(_feePercentage <= MAX_FEE_PERCENTAGE, "Fee too high");
        require(
            _signers.length >= _requiredSignatures && _requiredSignatures > 0,
            "Invalid signature requirements"
        );

        uniswapV2Router = _v2Router;
        uniswapV3Router = _v3Router;
        weth = _weth;
        feePercentage = _feePercentage;
        requiredSignatures = _requiredSignatures;

        // Initialize signers
        for (uint256 i = 0; i < _signers.length; i++) {
            require(_signers[i] != address(0), "Zero signer address");
            require(!signers[_signers[i]], "Duplicate signer");
            signers[_signers[i]] = true;
            signersList.push(_signers[i]);
            emit SignerAdded(_signers[i]);
        }
    }

    /**
     * @notice Updates the fee percentage (only owner)
     * @param _newFeePercentage New fee percentage in basis points
     */
    function updateFeePercentage(uint256 _newFeePercentage) external onlyOwner {
        require(_newFeePercentage <= MAX_FEE_PERCENTAGE, "Fee too high");
        uint256 oldFee = feePercentage;
        feePercentage = _newFeePercentage;
        emit FeePercentageUpdated(oldFee, _newFeePercentage);
    }

    /**
     * @notice Adds a new signer (only owner)
     * @param _signer Address of the new signer
     */
    function addSigner(address _signer) external onlyOwner {
        require(_signer != address(0), "Zero address");
        require(!signers[_signer], "Already a signer");

        signers[_signer] = true;
        signersList.push(_signer);
        emit SignerAdded(_signer);
    }

    /**
     * @notice Removes a signer (only owner)
     * @param _signer Address of the signer to remove
     */
    function removeSigner(address _signer) external onlyOwner {
        require(signers[_signer], "Not a signer");
        require(
            signersList.length > requiredSignatures,
            "Cannot remove, would break requirements"
        );

        signers[_signer] = false;

        // Remove from signers list
        for (uint256 i = 0; i < signersList.length; i++) {
            if (signersList[i] == _signer) {
                signersList[i] = signersList[signersList.length - 1];
                signersList.pop();
                break;
            }
        }

        emit SignerRemoved(_signer);
    }

    /**
     * @notice Updates required signatures count (only owner)
     * @param _requiredSignatures New required signatures count
     */
    function updateRequiredSignatures(
        uint256 _requiredSignatures
    ) external onlyOwner {
        require(
            _requiredSignatures > 0 &&
                _requiredSignatures <= signersList.length,
            "Invalid requirement"
        );
        requiredSignatures = _requiredSignatures;
    }

    /**
     * @notice Executes a swap via Uniswap V2 or V3 with fee collection
     * @param routerVersion 2 = Uniswap V2, 3 = Uniswap V3
     * @param tokenIn Input token
     * @param tokenOut Output token
     * @param amountIn Amount of tokenIn
     * @param amountOutMin Minimum expected tokenOut
     * @param deadline Expiration time
     * @param swapData Encoded data:
     *   - for V2: abi.encode(address[] path)
     *   - for V3 single-hop: abi.encode(uint24 fee)
     *   - for V3 multihop: abi.encodePacked(path)
     * @return amountOut Final amount received (after fees)
     */
    function universalSwap(
        uint8 routerVersion,
        address tokenIn,
        address tokenOut,
        uint256 amountIn,
        uint256 amountOutMin,
        uint256 deadline,
        bytes calldata swapData
    ) external nonReentrant returns (uint256 amountOut) {
        if (block.timestamp > deadline) revert DeadlineExpired();
        if (amountIn == 0) revert InvalidAmount();
        if (tokenIn == address(0) || tokenOut == address(0))
            revert InvalidAddress();
        if (tokenIn == tokenOut) revert SameToken();

        IERC20(tokenIn).safeTransferFrom(msg.sender, address(this), amountIn);

        if (routerVersion == V2_ROUTER) {
            amountOut = SwapV2.execute(
                uniswapV2Router,
                tokenIn,
                tokenOut,
                amountIn,
                amountOutMin,
                address(this),
                deadline,
                swapData
            );
        } else if (routerVersion == V3_ROUTER) {
            amountOut = SwapV3.execute(
                uniswapV3Router,
                tokenIn,
                tokenOut,
                amountIn,
                amountOutMin,
                address(this),
                deadline,
                swapData
            );
        } else {
            revert InvalidRouterVersion();
        }

        // Calculate and collect fees
        uint256 feeAmount = 0;
        if (feePercentage > 0) {
            feeAmount = (amountOut * feePercentage) / FEE_DENOMINATOR;
            collectedFees[tokenOut] += feeAmount;
            amountOut -= feeAmount;
        }

        // Ensure minimum output after fees
        require(amountOut >= amountOutMin, "Insufficient output after fees");

        IERC20(tokenOut).safeTransfer(msg.sender, amountOut);

        emit SwapExecuted(
            msg.sender,
            tokenIn,
            tokenOut,
            amountIn,
            amountOut,
            feeAmount,
            routerVersion
        );
    }

    /**
     * @notice Handles ETH swaps with WETH wrapping/unwrapping
     * @param routerVersion Router version to use
     * @param tokenOut Output token (use address(0) for ETH output)
     * @param amountOutMin Minimum expected output
     * @param deadline Transaction deadline
     * @param swapData Swap parameters
     * @return amountOut Amount received
     */
    function swapETH(
        uint8 routerVersion,
        address tokenOut,
        uint256 amountOutMin,
        uint256 deadline,
        bytes calldata swapData
    ) external payable nonReentrant returns (uint256 amountOut) {
        require(msg.value > 0, "No ETH sent");
        require(tokenOut != address(0), "Invalid token");

        IWETH(weth).deposit{value: msg.value}();

        amountOut = _executeSwap(
            routerVersion,
            weth,
            tokenOut,
            msg.value,
            amountOutMin,
            deadline,
            swapData
        );

        uint256 feeAmount;
        if (feePercentage > 0) {
            feeAmount = (amountOut * feePercentage) / FEE_DENOMINATOR;
            collectedFees[tokenOut] += feeAmount;
            amountOut -= feeAmount;
        }

        require(amountOut >= amountOutMin, "Insufficient output after fees");
        IERC20(tokenOut).safeTransfer(msg.sender, amountOut);

        emit SwapExecuted(
            msg.sender,
            weth,
            tokenOut,
            msg.value,
            amountOut,
            feeAmount,
            routerVersion
        );
    }

    /**
     * @notice Swaps tokens to ETH
     * @param routerVersion Router version to use
     * @param tokenIn Input token
     * @param amountIn Input amount
     * @param amountOutMin Minimum ETH expected
     * @param deadline Transaction deadline
     * @param swapData Swap parameters
     * @return amountOut ETH amount received
     */
    function swapToETH(
        uint8 routerVersion,
        address tokenIn,
        uint256 amountIn,
        uint256 amountOutMin,
        uint256 deadline,
        bytes calldata swapData
    ) external nonReentrant returns (uint256 amountOut) {
        require(tokenIn != address(0), "Invalid token");
        require(amountIn > 0, "Invalid amount");

        IERC20(tokenIn).safeTransferFrom(msg.sender, address(this), amountIn);

        amountOut = _executeSwap(
            routerVersion,
            tokenIn,
            weth,
            amountIn,
            amountOutMin,
            deadline,
            swapData
        );

        uint256 feeAmount;
        if (feePercentage > 0) {
            feeAmount = (amountOut * feePercentage) / FEE_DENOMINATOR;
            collectedFees[weth] += feeAmount;
            amountOut -= feeAmount;
        }

        require(amountOut >= amountOutMin, "Insufficient output after fees");

        IWETH(weth).withdraw(amountOut);
        (bool success, ) = msg.sender.call{value: amountOut}("");
        require(success, "ETH transfer failed");

        emit SwapExecuted(
            msg.sender,
            tokenIn,
            weth,
            amountIn,
            amountOut,
            feeAmount,
            routerVersion
        );
    }

    /**
     * @notice Internal function to execute swaps
     */
    function _executeSwap(
        uint8 routerVersion,
        address tokenIn,
        address tokenOut,
        uint256 amountIn,
        uint256 amountOutMin,
        uint256 deadline,
        bytes calldata swapData
    ) internal returns (uint256 amountOut) {
        if (routerVersion == V2_ROUTER) {
            amountOut = SwapV2.execute(
                uniswapV2Router,
                tokenIn,
                tokenOut,
                amountIn,
                amountOutMin,
                address(this),
                deadline,
                swapData
            );
        } else if (routerVersion == V3_ROUTER) {
            amountOut = SwapV3.execute(
                uniswapV3Router,
                tokenIn,
                tokenOut,
                amountIn,
                amountOutMin,
                address(this),
                deadline,
                swapData
            );
        } else {
            revert InvalidRouterVersion();
        }
    }

    function decreaseCollectedFees(address token, uint256 newValue) external onlyOwner {
        require(newValue <= collectedFees[token], "Can only decrease collected fees");
        collectedFees[token] = newValue;
    }

    /**
     * @notice Withdraws collected fees using multi-signature
     * @param signatures Array of signatures from signers
     * @param token Token to withdraw
     * @param amount Amount to withdraw
     * @param to Recipient address
     * @param nonce Unique nonce for this withdrawal
     */
    function withdrawFees(
        WithdrawalSignature[] calldata signatures,
        address token,
        uint256 amount,
        address to,
        uint256 nonce
    ) external nonReentrant {
        require(
            signatures.length >= requiredSignatures,
            "Insufficient signatures"
        );
        require(!usedNonces[nonce], "Nonce already used");
        require(to != address(0), "Invalid recipient");
        require(amount > 0, "Invalid amount");
        require(amount <= collectedFees[token], "Insufficient collected fees");

        // Verify signatures
        bytes32 messageHash = _getWithdrawalHash(token, amount, to, nonce);
        address[] memory signerAddresses = new address[](signatures.length);

        for (uint256 i = 0; i < signatures.length; i++) {
            address recoveredSigner = _recoverSigner(
                messageHash,
                signatures[i]
            );
            require(signers[recoveredSigner], "Invalid signer");

            // Check for duplicate signers
            for (uint256 j = 0; j < i; j++) {
                require(
                    signerAddresses[j] != recoveredSigner,
                    "Duplicate signer"
                );
            }
            signerAddresses[i] = recoveredSigner;
        }

        // Mark nonce as used
        usedNonces[nonce] = true;

        uint256 contractBalance = IERC20(token).balanceOf(address(this));
        require(contractBalance >= amount, "Insufficient contract balance");
        collectedFees[token] -= amount;

        // Transfer tokens
        IERC20(token).safeTransfer(to, amount);

        emit FeesWithdrawn(token, amount, to, nonce);
    }

    /**
     * @notice Gets the hash for withdrawal signature
     */
    function _getWithdrawalHash(
        address token,
        uint256 amount,
        address to,
        uint256 nonce
    ) internal view returns (bytes32) {
        bytes32 inner = keccak256(
            abi.encode(address(this), block.chainid, token, amount, to, nonce)
        );
        return
            keccak256(
                abi.encodePacked("\x19Ethereum Signed Message:\
32", inner)
            );
    }

    /**
     * @notice Recovers signer from signature
     */
    function _recoverSigner(
        bytes32 messageHash,
        WithdrawalSignature memory signature
    ) internal pure returns (address) {
        return ecrecover(messageHash, signature.v, signature.r, signature.s);
    }

    /**
     * @notice Gets current signers list
     */
    function getSigners() external view returns (address[] memory) {
        return signersList;
    }

    /**
     * @notice Gets collected fees for a token
     */
    function getCollectedFees(address token) external view returns (uint256) {
        return collectedFees[token];
    }

    /**
     * @notice Emergency function to recover stuck tokens (only owner)
     */
    function emergencyWithdraw(
        address token,
        uint256 amount,
        address to
    ) external onlyOwner {
        require(to != address(0), "Invalid recipient");
        IERC20(token).safeTransfer(to, amount);
    }

    /**
     * @notice Emergency function to recover stuck ETH (only owner)
     */
    function emergencyWithdrawETH(
        uint256 amount,
        address payable to
    ) external onlyOwner {
        require(to != address(0), "Invalid recipient");
        require(address(this).balance >= amount, "Insufficient balance");
        (bool success, ) = to.call{value: amount}("");
        require(success, "ETH transfer failed");
    }

    /**
     * @notice Allows contract to receive ETH
     */
    receive() external payable {}
}
"
    },
    "lib/openzeppelin-contracts-upgradeable/lib/openzeppelin-contracts/contracts/token/ERC20/IERC20.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.4.0) (token/ERC20/IERC20.sol)

pragma solidity >=0.4.16;

/**
 * @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);
}
"
    },
    "lib/openzeppelin-contracts-upgradeable/lib/openzeppelin-contracts/contracts/token/ERC20/utils/SafeERC20.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.3.0) (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);
    }
}
"
    },
    "lib/openzeppelin-contracts-upgradeable/lib/openzeppelin-contracts/contracts/utils/ReentrancyGuard.sol": {
      "content": "// 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;
    }
}
"
    },
    "lib/openzeppelin-contracts-upgradeable/lib/openzeppelin-contracts/contracts/access/Ownable.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (access/Ownable.sol)

pragma solidity ^0.8.20;

import {Context} from "../utils/Context.sol";

/**
 * @dev Contract module which provides a basic access control mechanism, where
 * there is an account (an owner) that can be granted exclusive access to
 * specific functions.
 *
 * 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 Ownable is Context {
    address private _owner;

    /**
     * @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.
     */
    constructor(address initialOwner) {
        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) {
        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 {
        address oldOwner = _owner;
        _owner = newOwner;
        emit OwnershipTransferred(oldOwner, newOwner);
    }
}
"
    },
    "src/libs/swap/UniSwapper.sol": {
      "content": "// SPDX-License-Identifier: MIT
pragma solidity ^0.8.13;

import {IERC20} from "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import {SafeERC20} from "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
import {IUniswapV2Router02} from "../../interfaces/uniswap/V2/IUniV2.sol";
import {ISwapRouter} from "../../interfaces/uniswap/V3/IUniV3.sol";

library SwapV2 {
    using SafeERC20 for IERC20;

    error InvalidPath();
    error SwapV2Failed();

    /**
     * @notice Executes swapExactTokensForTokens on Uniswap V2
     * @param router Address of Uniswap V2 router
     * @param tokenIn Address of input token
     * @param tokenOut Address of output token
     * @param amountIn Amount of tokenIn to swap
     * @param amountOutMin Minimum amount of tokenOut expected
     * @param recipient Address that will receive the output tokens
     * @param deadline Unix timestamp after which the tx will be reverted
     * @param path ABI-encoded array of token addresses
     * @return amountOut Amount of output token received
     */
    function execute(
        address router,
        address tokenIn,
        address tokenOut,
        uint256 amountIn,
        uint256 amountOutMin,
        address recipient,
        uint256 deadline,
        bytes calldata path
    ) internal returns (uint256 amountOut) {
        address[] memory tokens = abi.decode(path, (address[]));
        if (
            tokens.length < 2 ||
            tokens[0] != tokenIn ||
            tokens[tokens.length - 1] != tokenOut
        ) {
            revert InvalidPath();
        }

        IERC20(tokenIn).forceApprove(router, amountIn);

        try
            IUniswapV2Router02(router).swapExactTokensForTokens(
                amountIn,
                amountOutMin,
                tokens,
                recipient,
                deadline
            )
        returns (uint256[] memory amounts) {
            return amounts[amounts.length - 1];
        } catch {
            revert SwapV2Failed();
        }
    }
}

library SwapV3 {
    using SafeERC20 for IERC20;

    error InsufficientOutputAmount();

    /**
     * @notice Executes a swap via Uniswap V3 (single or multi-hop)
     * @param router Address of the Uniswap V3 router
     * @param tokenIn Input token
     * @param tokenOut Output token
     * @param amountIn Input token amount
     * @param amountOutMin Minimum acceptable output
     * @param recipient Receiver of output token
     * @param deadline Transaction deadline
     * @param swapData ABI-encoded uint24 fee (single-hop) or path (multi-hop)
     * @return amountOut Final amount received
     */
    function execute(
        address router,
        address tokenIn,
        address tokenOut,
        uint256 amountIn,
        uint256 amountOutMin,
        address recipient,
        uint256 deadline,
        bytes calldata swapData
    ) internal returns (uint256 amountOut) {
        IERC20(tokenIn).forceApprove(router, amountIn);

        if (swapData.length == 32) {
            // Single-hop swap
            uint24 fee = abi.decode(swapData, (uint24));

            ISwapRouter.ExactInputSingleParams memory params = ISwapRouter
                .ExactInputSingleParams({
                    tokenIn: tokenIn,
                    tokenOut: tokenOut,
                    fee: fee,
                    recipient: recipient,
                    deadline: deadline,
                    amountIn: amountIn,
                    amountOutMinimum: amountOutMin,
                    sqrtPriceLimitX96: 0
                });

            try ISwapRouter(router).exactInputSingle(params) returns (
                uint256 _amountOut
            ) {
                return _amountOut;
            } catch {
                revert InsufficientOutputAmount();
            }
        } else {
            // mmulti swap
            bytes memory path = swapData;

            ISwapRouter.ExactInputParams memory params = ISwapRouter
                .ExactInputParams({
                    path: path,
                    recipient: recipient,
                    deadline: deadline,
                    amountIn: amountIn,
                    amountOutMinimum: amountOutMin
                });

            try ISwapRouter(router).exactInput(params) returns (
                uint256 _amountOut
            ) {
                return _amountOut;
            } catch {
                revert InsufficientOutputAmount();
            }
        }
    }
}
"
    },
    "src/interfaces/IWeth.sol": {
      "content": "// SPDX-License-Identifier: UNLICENSED
pragma solidity ^0.8.13;

interface IWETH {
    function deposit() external payable;

    function transfer(address to, uint value) external returns (bool);

    function withdraw(uint) external;
}
"
    },
    "lib/openzeppelin-contracts-upgradeable/lib/openzeppelin-contracts/contracts/interfaces/IERC1363.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.4.0) (interfaces/IERC1363.sol)

pragma solidity >=0.6.2;

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);
}
"
    },
    "lib/openzeppelin-contracts-upgradeable/lib/openzeppelin-contracts/contracts/utils/Context.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.1) (utils/Context.sol)

pragma solidity ^0.8.20;

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

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

    function _contextSuffixLength() internal view virtual returns (uint256) {
        return 0;
    }
}
"
    },
    "src/interfaces/uniswap/V2/IUniV2.sol": {
      "content": "// SPDX-License-Identifier: UNLICENSED
pragma solidity ^0.8.13;

import "./IUniV1.sol";

interface IUniswapV2Router02 is IUniswapV2Router01 {
    function removeLiquidityETHSupportingFeeOnTransferTokens(
        address token,
        uint liquidity,
        uint amountTokenMin,
        uint amountETHMin,
        address to,
        uint deadline
    ) external returns (uint amountETH);

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

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

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

    function swapExactTokensForETHSupportingFeeOnTransferTokens(
        uint amountIn,
        uint amountOutMin,
        address[] calldata path,
        address to,
        uint deadline
    ) external;
}
"
    },
    "src/interfaces/uniswap/V3/IUniV3.sol": {
      "content": "// SPDX-License-Identifier: UNLICENSED
pragma solidity ^0.8.13;

/// @title Callback for IUniswapV3PoolActions#swap
/// @notice Any contract that calls IUniswapV3PoolActions#swap must implement this interface
interface IUniswapV3SwapCallback {
    /// @notice Called to `msg.sender` after executing a swap via IUniswapV3Pool#swap.
    /// @dev In the implementation you must pay the pool tokens owed for the swap.
    /// The caller of this method must be checked to be a UniswapV3Pool deployed by the canonical UniswapV3Factory.
    /// amount0Delta and amount1Delta can both be 0 if no tokens were swapped.
    /// @param amount0Delta The amount of token0 that was sent (negative) or must be received (positive) by the pool by
    /// the end of the swap. If positive, the callback must send that amount of token0 to the pool.
    /// @param amount1Delta The amount of token1 that was sent (negative) or must be received (positive) by the pool by
    /// the end of the swap. If positive, the callback must send that amount of token1 to the pool.
    /// @param data Any data passed through by the caller via the IUniswapV3PoolActions#swap call
    function uniswapV3SwapCallback(
        int256 amount0Delta,
        int256 amount1Delta,
        bytes calldata data
    ) external;
}

interface ISwapRouter is IUniswapV3SwapCallback {
    struct ExactInputSingleParams {
        address tokenIn;
        address tokenOut;
        uint24 fee;
        address recipient;
        uint256 deadline;
        uint256 amountIn;
        uint256 amountOutMinimum;
        uint160 sqrtPriceLimitX96;
    }

    /// @notice Swaps `amountIn` of one token for as much as possible of another token
    /// @param params The parameters necessary for the swap, encoded as `ExactInputSingleParams` in calldata
    /// @return amountOut The amount of the received token
    function exactInputSingle(
        ExactInputSingleParams calldata params
    ) external payable returns (uint256 amountOut);

    struct ExactInputParams {
        bytes path;
        address recipient;
        uint256 deadline;
        uint256 amountIn;
        uint256 amountOutMinimum;
    }

    /// @notice Swaps `amountIn` of one token for as much as possible of another along the specified path
    /// @param params The parameters necessary for the multi-hop swap, encoded as `ExactInputParams` in calldata
    /// @return amountOut The amount of the received token
    function exactInput(
        ExactInputParams calldata params
    ) external payable returns (uint256 amountOut);

    struct ExactOutputSingleParams {
        address tokenIn;
        address tokenOut;
        uint24 fee;
        address recipient;
        uint256 deadline;
        uint256 amountOut;
        uint256 amountInMaximum;
        uint160 sqrtPriceLimitX96;
    }

    /// @notice Swaps as little as possible of one token for `amountOut` of another token
    /// @param params The parameters necessary for the swap, encoded as `ExactOutputSingleParams` in calldata
    /// @return amountIn The amount of the input token
    function exactOutputSingle(
        ExactOutputSingleParams calldata params
    ) external payable returns (uint256 amountIn);

    struct ExactOutputParams {
        bytes path;
        address recipient;
        uint256 deadline;
        uint256 amountOut;
        uint256 amountInMaximum;
    }

    /// @notice Swaps as little as possible of one token for `amountOut` of another along the specified path (reversed)
    /// @param params The parameters necessary for the multi-hop swap, encoded as `ExactOutputParams` in calldata
    /// @return amountIn The amount of the input token
    function exactOutput(
        ExactOutputParams calldata params
    ) external payable returns (uint256 amountIn);
}

/// @title Quoter Interface
/// @notice Supports quoting the calculated amounts from exact input or exact output swaps
/// @dev These functions are not marked view because they rely on calling non-view functions and reverting
/// to compute the result. They are also not gas efficient and should not be called on-chain.
interface IQuoter {
    /// @notice Returns the amount out received for a given exact input swap without executing the swap
    /// @param path The path of the swap, i.e. each token pair and the pool fee
    /// @param amountIn The amount of the first token to swap
    /// @return amountOut The amount of the last token that would be received
    function quoteExactInput(
        bytes memory path,
        uint256 amountIn
    ) external returns (uint256 amountOut);

    /// @notice Returns the amount out received for a given exact input but for a swap of a single pool
    /// @param tokenIn The token being swapped in
    /// @param tokenOut The token being swapped out
    /// @param fee The fee of the token pool to consider for the pair
    /// @param amountIn The desired input amount
    /// @param sqrtPriceLimitX96 The price limit of the pool that cannot be exceeded by the swap
    /// @return amountOut The amount of `tokenOut` that would be received
    function quoteExactInputSingle(
        address tokenIn,
        address tokenOut,
        uint24 fee,
        uint256 amountIn,
        uint160 sqrtPriceLimitX96
    ) external returns (uint256 amountOut);

    /// @notice Returns the amount in required for a given exact output swap without executing the swap
    /// @param path The path of the swap, i.e. each token pair and the pool fee. Path must be provided in reverse order
    /// @param amountOut The amount of the last token to receive
    /// @return amountIn The amount of first token required to be paid
    function quoteExactOutput(
        bytes memory path,
        uint256 amountOut
    ) external returns (uint256 amountIn);

    /// @notice Returns the amount in required to receive the given exact output amount but for a swap of a single pool
    /// @param tokenIn The token being swapped in
    /// @param tokenOut The token being swapped out
    /// @param fee The fee of the token pool to consider for the pair
    /// @param amountOut The desired output amount
    /// @param sqrtPriceLimitX96 The price limit of the pool that cannot be exceeded by the swap
    /// @return amountIn The amount required as the input for the swap in order to receive `amountOut`
    function quoteExactOutputSingle(
        address tokenIn,
        address tokenOut,
        uint24 fee,
        uint256 amountOut,
        uint160 sqrtPriceLimitX96
    ) external returns (uint256 amountIn);
}
"
    },
    "lib/openzeppelin-contracts-upgradeable/lib/openzeppelin-contracts/contracts/interfaces/IERC20.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.4.0) (interfaces/IERC20.sol)

pragma solidity >=0.4.16;

import {IERC20} from "../token/ERC20/IERC20.sol";
"
    },
    "lib/openzeppelin-contracts-upgradeable/lib/openzeppelin-contracts/contracts/interfaces/IERC165.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.4.0) (interfaces/IERC165.sol)

pragma solidity >=0.4.16;

import {IERC165} from "../utils/introspection/IERC165.sol";
"
    },
    "src/interfaces/uniswap/V2/IUniV1.sol": {
      "content": "// SPDX-License-Identifier: UNLICENSED
pragma solidity ^0.8.13;

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

    function WETH() external pure returns (address);

    function addLiquidity(
        address tokenA,
        address tokenB,
        uint amountADesired,
        uint amountBDesired,
        uint amountAMin,
        uint amountBMin,
        address to,
        uint deadline
    ) external returns (uint amountA, uint amountB, uint liquidity);

    function addLiquidityETH(
        address token,
        uint amountTokenDesired,
        uint amountTokenMin,
        uint amountETHMin,
        address to,
        uint deadline
    )
        external
        payable
        returns (uint amountToken, uint amountETH, uint liquidity);

    function removeLiquidity(
        address tokenA,
        address tokenB,
        uint liquidity,
        uint amountAMin,
        uint amountBMin,
        address to,
        uint deadline
    ) external returns (uint amountA, uint amountB);

    function removeLiquidityETH(
        address token,
        uint liquidity,
        uint amountTokenMin,
        uint amountETHMin,
        address to,
        uint deadline
    ) external returns (uint amountToken, uint amountETH);

    function removeLiquidityWithPermit(
        address tokenA,
        address tokenB,
        uint liquidity,
        uint amountAMin,
        uint amountBMin,
        address to,
        uint deadline,
        bool approveMax,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external returns (uint amountA, uint amountB);

    function removeLiquidityETHWithPermit(
        address token,
        uint liquidity,
        uint amountTokenMin,
        uint amountETHMin,
        address to,
        uint deadline,
        bool approveMax,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external returns (uint amountToken, uint amountETH);

    function swapExactTokensForTokens(
        uint amountIn,
        uint amountOutMin,
        address[] calldata path,
        address to,
        uint deadline
    ) external returns (uint[] memory amounts);

    function swapTokensForExactTokens(
        uint amountOut,
        uint amountInMax,
        address[] calldata path,
        address to,
        uint deadline
    ) external returns (uint[] memory amounts);

    function swapExactETHForTokens(
        uint amountOutMin,
        address[] calldata path,
        address to,
        uint deadline
    ) external payable returns (uint[] memory amounts);

    function swapTokensForExactETH(
        uint amountOut,
        uint amountInMax,
        address[] calldata path,
        address to,
        uint deadline
    ) external returns (uint[] memory amounts);

    function swapExactTokensForETH(
        uint amountIn,
        uint amountOutMin,
        address[] calldata path,
        address to,
        uint deadline
    ) external returns (uint[] memory amounts);

    function swapETHForExactTokens(
        uint amountOut,
        address[] calldata path,
        address to,
        uint deadline
    ) external payable returns (uint[] memory amounts);

    function quote(
        uint amountA,
        uint reserveA,
        uint reserveB
    ) external pure returns (uint amountB);

    function getAmountOut(
        uint amountIn,
        uint reserveIn,
        uint reserveOut
    ) external pure returns (uint amountOut);

    function getAmountIn(
        uint amountOut,
        uint reserveIn,
        uint reserveOut
    ) external pure returns (uint amountIn);

    function getAmountsOut(
        uint amountIn,
        address[] calldata path
    ) external view returns (uint[] memory amounts);

    function getAmountsIn(
        uint amountOut,
        address[] calldata path
    ) external view returns (uint[] memory amounts);
}
"
    },
    "lib/openzeppelin-contracts-upgradeable/lib/openzeppelin-contracts/contracts/utils/introspection/IERC165.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.4.0) (utils/introspection/IERC165.sol)

pragma solidity >=0.4.16;

/**
 * @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);
}
"
    }
  },
  "settings": {
    "remappings": [
      "@openzeppelin/contracts/=lib/openzeppelin-contracts-upgradeable/lib/openzeppelin-contracts/contracts/",
      "@openzeppelin/contracts-upgradeable/=lib/openzeppelin-contracts-upgradeable/contracts/",
      "forge-std/=lib/forge-std/src/",
      "ds-test/=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/",
      "openzeppelin-contracts/=lib/openzeppelin-contracts-upgradeable/lib/openzeppelin-contracts/",
      "openzeppelin-foundry-upgrades/=lib/openzeppelin-foundry-upgrades/src/"
    ],
    "optimizer": {
      "enabled": true,
      "runs": 200
    },
    "metadata": {
      "useLiteralContent": false,
      "bytecodeHash": "ipfs",
      "appendCBOR": true
    },
    "outputSelection": {
      "*": {
        "*": [
          "evm.bytecode",
          "evm.deployedBytecode",
          "devdoc",
          "userdoc",
          "metadata",
          "abi"
        ]
      }
    },
    "evmVersion": "prague",
    "viaIR": true
  }
}}