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// SPDX-License-Identifier: MIT
pragma solidity =0.8.14;

// OpenZeppelin Contracts
import {IERC20} from "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import {Ownable} from "@openzeppelin/contracts/access/Ownable.sol";
import {Pausable} from "@openzeppelin/contracts/security/Pausable.sol";
import {ReentrancyGuard} from "@openzeppelin/contracts/security/ReentrancyGuard.sol";
import {EnumerableSet} from "@openzeppelin/contracts/utils/structs/EnumerableSet.sol";

// Local Contracts
import {IWETH} from "../interfaces/IWETH.sol";
import {IWooCrossChainRouterV3} from "../interfaces/CrossChain/IWooCrossChainRouterV3.sol";
import {IWooRouterV2} from "../interfaces/IWooRouterV2.sol";
import {IStargateEthVault} from "../interfaces/Stargate/IStargateEthVault.sol";
import {IStargateRouter} from "../interfaces/Stargate/IStargateRouter.sol";
import {ILzApp} from "../interfaces/LayerZero/ILzApp.sol";
import {ISgInfo} from "../interfaces/CrossChain/ISgInfo.sol";

import {TransferHelper} from "../libraries/TransferHelper.sol";

/// @title cross chain router implementation, version 3.
/// @notice Router for stateless execution of cross chain swap against WOOFi or 1inch swap.
/// @custom:stargate-contracts https://stargateprotocol.gitbook.io/stargate/developers/contract-addresses/mainnet
contract WooCrossChainRouterV4 is IWooCrossChainRouterV3, Ownable, Pausable, ReentrancyGuard {
    using EnumerableSet for EnumerableSet.AddressSet;

    /* ----- Constants ----- */

    address public constant ETH_PLACEHOLDER_ADDR = 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE;

    /* ----- Variables ----- */

    IWooRouterV2 public wooRouter;
    ISgInfo public sgInfo;

    address public immutable weth;
    address public feeAddr;
    uint256 public bridgeSlippage; // 1 in 10000th: default 1%

    uint16 public srcExternalFeeRate; // unit: 0.1 bps (1e6 = 100%, 25 = 2.5 bps)
    uint16 public dstExternalFeeRate; // unit: 0.1 bps (1e6 = 100%, 25 = 2.5 bps)
    uint256 public constant FEE_BASE = 1e5;

    mapping(uint16 => address) public wooCrossRouters; // chainId => WooCrossChainRouterV3 address

    receive() external payable {}

    constructor(
        address _weth,
        address _wooRouter,
        address _sgInfo
    ) {
        weth = _weth;
        wooRouter = IWooRouterV2(_wooRouter);
        sgInfo = ISgInfo(_sgInfo);

        bridgeSlippage = 100;

        srcExternalFeeRate = 25;
        dstExternalFeeRate = 25;
    }

    /* ----- Functions ----- */

    function crossSwap(
        uint256 refId,
        address payable to,
        SrcInfos memory srcInfos,
        DstInfos calldata dstInfos,
        Src1inch calldata src1inch,
        Dst1inch calldata dst1inch
    ) external payable whenNotPaused nonReentrant {
        require(srcInfos.fromToken != address(0), "WooCrossChainRouterV3: !srcInfos.fromToken");
        require(
            dstInfos.toToken != address(0) && dstInfos.toToken != sgInfo.sgETHs(dstInfos.chainId),
            "WooCrossChainRouterV3: !dstInfos.toToken"
        );
        require(to != address(0), "WooCrossChainRouterV3: !to");

        uint256 msgValue = msg.value;
        uint256 bridgeAmount;
        uint256 fee = 0;

        {
            // Step 1: transfer
            if (srcInfos.fromToken == ETH_PLACEHOLDER_ADDR) {
                require(srcInfos.fromAmount <= msgValue, "WooCrossChainRouterV3: !srcInfos.fromAmount");
                srcInfos.fromToken = weth;
                IWETH(weth).deposit{value: srcInfos.fromAmount}();
                msgValue -= srcInfos.fromAmount;
            } else {
                TransferHelper.safeTransferFrom(srcInfos.fromToken, msg.sender, address(this), srcInfos.fromAmount);
            }

            // Step 2: local swap by 1inch router
            if (srcInfos.fromToken != srcInfos.bridgeToken) {
                TransferHelper.safeApprove(srcInfos.fromToken, address(wooRouter), srcInfos.fromAmount);
                if (src1inch.swapRouter != address(0)) {
                    // external swap via 1inch
                    bridgeAmount = wooRouter.externalSwap(
                        src1inch.swapRouter,
                        src1inch.swapRouter,
                        srcInfos.fromToken,
                        srcInfos.bridgeToken,
                        srcInfos.fromAmount,
                        srcInfos.minBridgeAmount,
                        payable(address(this)),
                        src1inch.data
                    );
                    fee = (bridgeAmount * srcExternalFeeRate) / FEE_BASE;
                } else {
                    // swap via WOOFi
                    bridgeAmount = wooRouter.swap(
                        srcInfos.fromToken,
                        srcInfos.bridgeToken,
                        srcInfos.fromAmount,
                        srcInfos.minBridgeAmount,
                        payable(address(this)),
                        to
                    );
                }
            } else {
                require(
                    srcInfos.fromAmount == srcInfos.minBridgeAmount,
                    "WooCrossChainRouterV3: !srcInfos.minBridgeAmount"
                );
                bridgeAmount = srcInfos.fromAmount;
            }

            require(
                bridgeAmount <= IERC20(srcInfos.bridgeToken).balanceOf(address(this)),
                "WooCrossChainRouterV3: !bridgeAmount"
            );
        }

        // Step 3: deduct the swap fee
        bridgeAmount -= fee;

        // Step 4: cross chain swap by StargateRouter
        _bridgeByStargate(refId, to, msgValue, bridgeAmount, srcInfos, dstInfos, dst1inch);

        emit WooCrossSwapOnSrcChain(
            refId,
            _msgSender(),
            to,
            srcInfos.fromToken,
            srcInfos.fromAmount,
            srcInfos.bridgeToken,
            srcInfos.minBridgeAmount,
            bridgeAmount,
            src1inch.swapRouter == address(0) ? 0 : 1,
            fee
        );
    }

    function sgReceive(
        uint16, // srcChainId
        bytes memory, // srcAddress
        uint256, // nonce
        address bridgedToken,
        uint256 amountLD,
        bytes memory payload
    ) external {
        require(msg.sender == sgInfo.sgRouter(), "WooCrossChainRouterV3: INVALID_CALLER");

        // make sure the same order to abi.encode when decode payload
        (uint256 refId, address to, address toToken, uint256 minToAmount, Dst1inch memory dst1inch) = abi.decode(
            payload,
            (uint256, address, address, uint256, Dst1inch)
        );

        // toToken won't be SGETH, and bridgedToken won't be ETH_PLACEHOLDER_ADDR
        if (bridgedToken == sgInfo.sgETHs(sgInfo.sgChainIdLocal())) {
            // bridgedToken is SGETH, received native token
            _handleNativeReceived(refId, to, toToken, amountLD, minToAmount, dst1inch);
        } else {
            // bridgedToken is not SGETH, received ERC20 token
            _handleERC20Received(refId, to, toToken, bridgedToken, amountLD, minToAmount, dst1inch);
        }
    }

    function quoteLayerZeroFee(
        uint256 refId,
        address to,
        DstInfos calldata dstInfos,
        Dst1inch calldata dst1inch
    ) external view returns (uint256, uint256) {
        bytes memory payload = abi.encode(refId, to, dstInfos.toToken, dstInfos.minToAmount, dst1inch);
        IStargateRouter.lzTxObj memory obj = IStargateRouter.lzTxObj(
            dstInfos.dstGasForCall,
            dstInfos.airdropNativeAmount,
            abi.encodePacked(to)
        );
        IStargateRouter stargateRouter = IStargateRouter(sgInfo.sgRouter());
        return
            stargateRouter.quoteLayerZeroFee(
                dstInfos.chainId,
                1, // https://stargateprotocol.gitbook.io/stargate/developers/function-types
                obj.dstNativeAddr,
                payload,
                obj
            );
    }

    /// @dev OKAY to be public method
    function claimFee(address token) external nonReentrant {
        require(feeAddr != address(0), "WooCrossChainRouterV3: !feeAddr");
        uint256 amount = _generalBalanceOf(token, address(this));
        if (amount > 0) {
            if (token == ETH_PLACEHOLDER_ADDR) {
                TransferHelper.safeTransferETH(feeAddr, amount);
            } else {
                TransferHelper.safeTransfer(token, feeAddr, amount);
            }
        }
    }

    function _bridgeByStargate(
        uint256 refId,
        address payable to,
        uint256 msgValue,
        uint256 bridgeAmount,
        SrcInfos memory srcInfos,
        DstInfos calldata dstInfos,
        Dst1inch calldata dst1inch
    ) internal {
        require(
            sgInfo.sgPoolIds(sgInfo.sgChainIdLocal(), srcInfos.bridgeToken) > 0,
            "WooCrossChainRouterV3: !srcInfos.bridgeToken"
        );
        require(
            sgInfo.sgPoolIds(dstInfos.chainId, dstInfos.bridgeToken) > 0,
            "WooCrossChainRouterV3: !dstInfos.bridgeToken"
        );

        bytes memory payload = abi.encode(refId, to, dstInfos.toToken, dstInfos.minToAmount, dst1inch);

        uint256 dstMinBridgeAmount = (bridgeAmount * (10000 - bridgeSlippage)) / 10000;
        bytes memory dstWooCrossChainRouter = abi.encodePacked(wooCrossRouters[dstInfos.chainId]);

        IStargateRouter.lzTxObj memory obj = IStargateRouter.lzTxObj(
            dstInfos.dstGasForCall,
            dstInfos.airdropNativeAmount,
            abi.encodePacked(to)
        );
        IStargateRouter stargateRouter = IStargateRouter(sgInfo.sgRouter());

        if (srcInfos.bridgeToken == weth) {
            IWETH(weth).withdraw(bridgeAmount);
            msgValue += bridgeAmount;
        } else {
            TransferHelper.safeApprove(srcInfos.bridgeToken, sgInfo.sgRouter(), bridgeAmount);
        }

        stargateRouter.swap{value: msgValue}(
            dstInfos.chainId, // dst chain id
            sgInfo.sgPoolIds(sgInfo.sgChainIdLocal(), srcInfos.bridgeToken), // bridge token's pool id on src chain
            sgInfo.sgPoolIds(dstInfos.chainId, dstInfos.bridgeToken), // bridge token's pool id on dst chain
            payable(_msgSender()), // rebate address
            bridgeAmount, // swap amount on src chain
            dstMinBridgeAmount, // min received amount on dst chain
            obj, // config: dstGasForCall, dstAirdropNativeAmount, dstReceiveAirdropNativeTokenAddr
            dstWooCrossChainRouter, // smart contract to call on dst chain
            payload // payload to piggyback
        );
    }

    function _handleNativeReceived(
        uint256 refId,
        address to,
        address toToken,
        uint256 bridgedAmount,
        uint256 minToAmount,
        Dst1inch memory dst1inch
    ) internal {
        address msgSender = _msgSender();

        if (toToken == ETH_PLACEHOLDER_ADDR) {
            // Directly transfer ETH
            TransferHelper.safeTransferETH(to, bridgedAmount);
            emit WooCrossSwapOnDstChain(
                refId,
                msgSender,
                to,
                weth,
                bridgedAmount,
                toToken,
                ETH_PLACEHOLDER_ADDR,
                minToAmount,
                bridgedAmount,
                dst1inch.swapRouter == address(0) ? 0 : 1,
                0
            );
            return;
        }

        // Swap required!
        IWETH(weth).deposit{value: bridgedAmount}();

        if (dst1inch.swapRouter != address(0)) {
            uint256 fee = (bridgedAmount * dstExternalFeeRate) / FEE_BASE;
            uint256 swapAmount = bridgedAmount - fee;
            TransferHelper.safeApprove(weth, address(wooRouter), swapAmount);
            try
                wooRouter.externalSwap(
                    dst1inch.swapRouter,
                    dst1inch.swapRouter,
                    weth,
                    toToken,
                    swapAmount,
                    minToAmount,
                    payable(to),
                    dst1inch.data
                )
            returns (uint256 realToAmount) {
                emit WooCrossSwapOnDstChain(
                    refId,
                    msgSender,
                    to,
                    weth,
                    swapAmount,
                    toToken,
                    toToken,
                    minToAmount,
                    realToAmount,
                    dst1inch.swapRouter == address(0) ? 0 : 1,
                    fee
                );
            } catch {
                TransferHelper.safeApprove(weth, address(wooRouter), 0);
                TransferHelper.safeTransfer(weth, to, bridgedAmount);
                emit WooCrossSwapOnDstChain(
                    refId,
                    msgSender,
                    to,
                    weth,
                    bridgedAmount,
                    toToken,
                    weth,
                    minToAmount,
                    bridgedAmount,
                    dst1inch.swapRouter == address(0) ? 0 : 1,
                    0
                );
            }
        } else {
            TransferHelper.safeApprove(weth, address(wooRouter), bridgedAmount);
            try wooRouter.swap(weth, toToken, bridgedAmount, minToAmount, payable(to), to) returns (
                uint256 realToAmount
            ) {
                emit WooCrossSwapOnDstChain(
                    refId,
                    msgSender,
                    to,
                    weth,
                    bridgedAmount,
                    toToken,
                    toToken,
                    minToAmount,
                    realToAmount,
                    dst1inch.swapRouter == address(0) ? 0 : 1,
                    0
                );
            } catch {
                TransferHelper.safeApprove(weth, address(wooRouter), 0);
                TransferHelper.safeTransfer(weth, to, bridgedAmount);
                emit WooCrossSwapOnDstChain(
                    refId,
                    msgSender,
                    to,
                    weth,
                    bridgedAmount,
                    toToken,
                    weth,
                    minToAmount,
                    bridgedAmount,
                    dst1inch.swapRouter == address(0) ? 0 : 1,
                    0
                );
            }
        }
    }

    function _handleERC20Received(
        uint256 refId,
        address to,
        address toToken,
        address bridgedToken,
        uint256 bridgedAmount,
        uint256 minToAmount,
        Dst1inch memory dst1inch
    ) internal {
        address msgSender = _msgSender();

        if (toToken == bridgedToken) {
            TransferHelper.safeTransfer(bridgedToken, to, bridgedAmount);
            emit WooCrossSwapOnDstChain(
                refId,
                msgSender,
                to,
                bridgedToken,
                bridgedAmount,
                toToken,
                toToken,
                minToAmount,
                bridgedAmount,
                dst1inch.swapRouter == address(0) ? 0 : 1,
                0
            );
        } else {
            // Deduct the external swap fee
            uint256 fee = (bridgedAmount * dstExternalFeeRate) / FEE_BASE;
            bridgedAmount -= fee;

            TransferHelper.safeApprove(bridgedToken, address(wooRouter), bridgedAmount);
            if (dst1inch.swapRouter != address(0)) {
                try
                    wooRouter.externalSwap(
                        dst1inch.swapRouter,
                        dst1inch.swapRouter,
                        bridgedToken,
                        toToken,
                        bridgedAmount,
                        minToAmount,
                        payable(to),
                        dst1inch.data
                    )
                returns (uint256 realToAmount) {
                    emit WooCrossSwapOnDstChain(
                        refId,
                        msgSender,
                        to,
                        bridgedToken,
                        bridgedAmount,
                        toToken,
                        toToken,
                        minToAmount,
                        realToAmount,
                        dst1inch.swapRouter == address(0) ? 0 : 1,
                        fee
                    );
                } catch {
                    bridgedAmount += fee;
                    TransferHelper.safeTransfer(bridgedToken, to, bridgedAmount);
                    emit WooCrossSwapOnDstChain(
                        refId,
                        msgSender,
                        to,
                        bridgedToken,
                        bridgedAmount,
                        toToken,
                        bridgedToken,
                        minToAmount,
                        bridgedAmount,
                        dst1inch.swapRouter == address(0) ? 0 : 1,
                        0
                    );
                }
            } else {
                try wooRouter.swap(bridgedToken, toToken, bridgedAmount, minToAmount, payable(to), to) returns (
                    uint256 realToAmount
                ) {
                    emit WooCrossSwapOnDstChain(
                        refId,
                        msgSender,
                        to,
                        bridgedToken,
                        bridgedAmount,
                        toToken,
                        toToken,
                        minToAmount,
                        realToAmount,
                        dst1inch.swapRouter == address(0) ? 0 : 1,
                        0
                    );
                } catch {
                    TransferHelper.safeTransfer(bridgedToken, to, bridgedAmount);
                    emit WooCrossSwapOnDstChain(
                        refId,
                        msgSender,
                        to,
                        bridgedToken,
                        bridgedAmount,
                        toToken,
                        bridgedToken,
                        minToAmount,
                        bridgedAmount,
                        dst1inch.swapRouter == address(0) ? 0 : 1,
                        0
                    );
                }
            }
        }
    }

    function _generalBalanceOf(address token, address who) internal view returns (uint256) {
        return token == ETH_PLACEHOLDER_ADDR ? who.balance : IERC20(token).balanceOf(who);
    }

    /* ----- Owner & Admin Functions ----- */

    function setFeeAddr(address _feeAddr) external onlyOwner {
        feeAddr = _feeAddr;
    }

    function setWooRouter(address _wooRouter) external onlyOwner {
        require(_wooRouter != address(0), "WooCrossChainRouterV3: !_wooRouter");
        wooRouter = IWooRouterV2(_wooRouter);
    }

    function setBridgeSlippage(uint256 _bridgeSlippage) external onlyOwner {
        require(_bridgeSlippage <= 10000, "WooCrossChainRouterV3: !_bridgeSlippage");
        bridgeSlippage = _bridgeSlippage;
    }

    function setWooCrossRouter(uint16 _chainId, address _crossRouter) external onlyOwner {
        require(_crossRouter != address(0), "WooCrossChainRouterV3: !_crossRouter");
        wooCrossRouters[_chainId] = _crossRouter;
    }

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

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

    function inCaseTokenGotStuck(address stuckToken) external onlyOwner {
        if (stuckToken == ETH_PLACEHOLDER_ADDR) {
            TransferHelper.safeTransferETH(msg.sender, address(this).balance);
        } else {
            uint256 amount = IERC20(stuckToken).balanceOf(address(this));
            TransferHelper.safeTransfer(stuckToken, msg.sender, amount);
        }
    }
}

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

pragma solidity ^0.8.0;

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

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

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

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

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

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

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

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

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

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

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (security/Pausable.sol)

pragma solidity ^0.8.0;

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

/**
 * @dev Contract module which allows children to implement an emergency stop
 * mechanism that can be triggered by an authorized account.
 *
 * This module is used through inheritance. It will make available the
 * modifiers `whenNotPaused` and `whenPaused`, which can be applied to
 * the functions of your contract. Note that they will not be pausable by
 * simply including this module, only once the modifiers are put in place.
 */
abstract contract Pausable is Context {
    /**
     * @dev Emitted when the pause is triggered by `account`.
     */
    event Paused(address account);

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

    bool private _paused;

    /**
     * @dev Initializes the contract in unpaused state.
     */
    constructor() {
        _paused = false;
    }

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

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

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

    /**
     * @dev Throws if the contract is paused.
     */
    function _requireNotPaused() internal view virtual {
        require(!paused(), "Pausable: paused");
    }

    /**
     * @dev Throws if the contract is not paused.
     */
    function _requirePaused() internal view virtual {
        require(paused(), "Pausable: not paused");
    }

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

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

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

pragma solidity ^0.8.0;

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

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

    uint256 private _status;

    constructor() {
        _status = _NOT_ENTERED;
    }

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

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

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

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

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

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

pragma solidity ^0.8.0;

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

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

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

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

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

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

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

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

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

pragma solidity ^0.8.0;

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

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

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

pragma solidity ^0.8.0;

/**
 * @dev Library for managing
 * https://en.wikipedia.org/wiki/Set_(abstract_data_type)[sets] of primitive
 * types.
 *
 * Sets have the following properties:
 *
 * - Elements are added, removed, and checked for existence in constant time
 * (O(1)).
 * - Elements are enumerated in O(n). No guarantees are made on the ordering.
 *
 * ```solidity
 * contract Example {
 *     // Add the library methods
 *     using EnumerableSet for EnumerableSet.AddressSet;
 *
 *     // Declare a set state variable
 *     EnumerableSet.AddressSet private mySet;
 * }
 * ```
 *
 * As of v3.3.0, sets of type `bytes32` (`Bytes32Set`), `address` (`AddressSet`)
 * and `uint256` (`UintSet`) are supported.
 *
 * [WARNING]
 * ====
 * Trying to delete such a structure from storage will likely result in data corruption, rendering the structure
 * unusable.
 * See https://github.com/ethereum/solidity/pull/11843[ethereum/solidity#11843] for more info.
 *
 * In order to clean an EnumerableSet, you can either remove all elements one by one or create a fresh instance using an
 * array of EnumerableSet.
 * ====
 */
library EnumerableSet {
    // To implement this library for multiple types with as little code
    // repetition as possible, we write it in terms of a generic Set type with
    // bytes32 values.
    // The Set implementation uses private functions, and user-facing
    // implementations (such as AddressSet) are just wrappers around the
    // underlying Set.
    // This means that we can only create new EnumerableSets for types that fit
    // in bytes32.

    struct Set {
        // Storage of set values
        bytes32[] _values;
        // Position of the value in the `values` array, plus 1 because index 0
        // means a value is not in the set.
        mapping(bytes32 => uint256) _indexes;
    }

    /**
     * @dev Add a value to a set. O(1).
     *
     * Returns true if the value was added to the set, that is if it was not
     * already present.
     */
    function _add(Set storage set, bytes32 value) private returns (bool) {
        if (!_contains(set, value)) {
            set._values.push(value);
            // The value is stored at length-1, but we add 1 to all indexes
            // and use 0 as a sentinel value
            set._indexes[value] = set._values.length;
            return true;
        } else {
            return false;
        }
    }

    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the value was removed from the set, that is if it was
     * present.
     */
    function _remove(Set storage set, bytes32 value) private returns (bool) {
        // We read and store the value's index to prevent multiple reads from the same storage slot
        uint256 valueIndex = set._indexes[value];

        if (valueIndex != 0) {
            // Equivalent to contains(set, value)
            // To delete an element from the _values array in O(1), we swap the element to delete with the last one in
            // the array, and then remove the last element (sometimes called as 'swap and pop').
            // This modifies the order of the array, as noted in {at}.

            uint256 toDeleteIndex = valueIndex - 1;
            uint256 lastIndex = set._values.length - 1;

            if (lastIndex != toDeleteIndex) {
                bytes32 lastValue = set._values[lastIndex];

                // Move the last value to the index where the value to delete is
                set._values[toDeleteIndex] = lastValue;
                // Update the index for the moved value
                set._indexes[lastValue] = valueIndex; // Replace lastValue's index to valueIndex
            }

            // Delete the slot where the moved value was stored
            set._values.pop();

            // Delete the index for the deleted slot
            delete set._indexes[value];

            return true;
        } else {
            return false;
        }
    }

    /**
     * @dev Returns true if the value is in the set. O(1).
     */
    function _contains(Set storage set, bytes32 value) private view returns (bool) {
        return set._indexes[value] != 0;
    }

    /**
     * @dev Returns the number of values on the set. O(1).
     */
    function _length(Set storage set) private view returns (uint256) {
        return set._values.length;
    }

    /**
     * @dev Returns the value stored at position `index` in the set. O(1).
     *
     * Note that there are no guarantees on the ordering of values inside the
     * array, and it may change when more values are added or removed.
     *
     * Requirements:
     *
     * - `index` must be strictly less than {length}.
     */
    function _at(Set storage set, uint256 index) private view returns (bytes32) {
        return set._values[index];
    }

    /**
     * @dev Return the entire set in an array
     *
     * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
     * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
     * this function has an unbounded cost, and using it as part of a state-changing function may render the function
     * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
     */
    function _values(Set storage set) private view returns (bytes32[] memory) {
        return set._values;
    }

    // Bytes32Set

    struct Bytes32Set {
        Set _inner;
    }

    /**
     * @dev Add a value to a set. O(1).
     *
     * Returns true if the value was added to the set, that is if it was not
     * already present.
     */
    function add(Bytes32Set storage set, bytes32 value) internal returns (bool) {
        return _add(set._inner, value);
    }

    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the value was removed from the set, that is if it was
     * present.
     */
    function remove(Bytes32Set storage set, bytes32 value) internal returns (bool) {
        return _remove(set._inner, value);
    }

    /**
     * @dev Returns true if the value is in the set. O(1).
     */
    function contains(Bytes32Set storage set, bytes32 value) internal view returns (bool) {
        return _contains(set._inner, value);
    }

    /**
     * @dev Returns the number of values in the set. O(1).
     */
    function length(Bytes32Set storage set) internal view returns (uint256) {
        return _length(set._inner);
    }

    /**
     * @dev Returns the value stored at position `index` in the set. O(1).
     *
     * Note that there are no guarantees on the ordering of values inside the
     * array, and it may change when more values are added or removed.
     *
     * Requirements:
     *
     * - `index` must be strictly less than {length}.
     */
    function at(Bytes32Set storage set, uint256 index) internal view returns (bytes32) {
        return _at(set._inner, index);
    }

    /**
     * @dev Return the entire set in an array
     *
     * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
     * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
     * this function has an unbounded cost, and using it as part of a state-changing function may render the function
     * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
     */
    function values(Bytes32Set storage set) internal view returns (bytes32[] memory) {
        bytes32[] memory store = _values(set._inner);
        bytes32[] memory result;

        /// @solidity memory-safe-assembly
        assembly {
            result := store
        }

        return result;
    }

    // AddressSet

    struct AddressSet {
        Set _inner;
    }

    /**
     * @dev Add a value to a set. O(1).
     *
     * Returns true if the value was added to the set, that is if it was not
     * already present.
     */
    function add(AddressSet storage set, address value) internal returns (bool) {
        return _add(set._inner, bytes32(uint256(uint160(value))));
    }

    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the value was removed from the set, that is if it was
     * present.
     */
    function remove(AddressSet storage set, address value) internal returns (bool) {
        return _remove(set._inner, bytes32(uint256(uint160(value))));
    }

    /**
     * @dev Returns true if the value is in the set. O(1).
     */
    function contains(AddressSet storage set, address value) internal view returns (bool) {
        return _contains(set._inner, bytes32(uint256(uint160(value))));
    }

    /**
     * @dev Returns the number of values in the set. O(1).
     */
    function length(AddressSet storage set) internal view returns (uint256) {
        return _length(set._inner);
    }

    /**
     * @dev Returns the value stored at position `index` in the set. O(1).
     *
     * Note that there are no guarantees on the ordering of values inside the
     * array, and it may change when more values are added or removed.
     *
     * Requirements:
     *
     * - `index` must be strictly less than {length}.
     */
    function at(AddressSet storage set, uint256 index) internal view returns (address) {
        return address(uint160(uint256(_at(set._inner, index))));
    }

    /**
     * @dev Return the entire set in an array
     *
     * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
     * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
     * this function has an unbounded cost, and using it as part of a state-changing function may render the function
     * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
     */
    function values(AddressSet storage set) internal view returns (address[] memory) {
        bytes32[] memory store = _values(set._inner);
        address[] memory result;

        /// @solidity memory-safe-assembly
        assembly {
            result := store
        }

        return result;
    }

    // UintSet

    struct UintSet {
        Set _inner;
    }

    /**
     * @dev Add a value to a set. O(1).
     *
     * Returns true if the value was added to the set, that is if it was not
     * already present.
     */
    function add(UintSet storage set, uint256 value) internal returns (bool) {
        return _add(set._inner, bytes32(value));
    }

    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the value was removed from the set, that is if it was
     * present.
     */
    function remove(UintSet storage set, uint256 value) internal returns (bool) {
        return _remove(set._inner, bytes32(value));
    }

    /**
     * @dev Returns true if the value is in the set. O(1).
     */
    function contains(UintSet storage set, uint256 value) internal view returns (bool) {
        return _contains(set._inner, bytes32(value));
    }

    /**
     * @dev Returns the number of values in the set. O(1).
     */
    function length(UintSet storage set) internal view returns (uint256) {
        return _length(set._inner);
    }

    /**
     * @dev Returns the value stored at position `index` in the set. O(1).
     *
     * Note that there are no guarantees on the ordering of values inside the
     * array, and it may change when more values are added or removed.
     *
     * Requirements:
     *
     * - `index` must be strictly less than {length}.
     */
    function at(UintSet storage set, uint256 index) internal view returns (uint256) {
        return uint256(_at(set._inner, index));
    }

    /**
     * @dev Return the entire set in an array
     *
     * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
     * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
     * this function has an unbounded cost, and using it as part of a state-changing function may render the function
     * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
     */
    function values(UintSet storage set) internal view returns (uint256[] memory) {
        bytes32[] memory store = _values(set._inner);
        uint256[] memory result;

        /// @solidity memory-safe-assembly
        assembly {
            result := store
        }

        return result;
    }
}

// SPDX-License-Identifier: MIT
pragma solidity =0.8.14;

/*

░██╗░░░░░░░██╗░█████╗░░█████╗░░░░░░░███████╗██╗
░██║░░██╗░░██║██╔══██╗██╔══██╗░░░░░░██╔════╝██║
░╚██╗████╗██╔╝██║░░██║██║░░██║█████╗█████╗░░██║
░░████╔═████║░██║░░██║██║░░██║╚════╝██╔══╝░░██║
░░╚██╔╝░╚██╔╝░╚█████╔╝╚█████╔╝░░░░░░██║░░░░░██║
░░░╚═╝░░░╚═╝░░░╚════╝░░╚════╝░░░░░░░╚═╝░░░░░╚═╝

*
* MIT License
* ===========
*
* Copyright (c) 2020 WooTrade
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/

/// @title WOOFi cross fee.
interface ISgInfo {
    /* ----- State Variables ----- */

    function sgRouter() external view returns (address sgRouter);

    function sgChainIdLocal() external view returns (uint16 sgChainIdLocal);

    function sgPoolIds(uint16 _chainId, address _addr) external view returns (uint256 sgPoolId);

    function sgETHs(uint16 _chainId) external view returns (address sgETH);
}

// SPDX-License-Identifier: MIT
pragma solidity =0.8.14;

/*

░██╗░░░░░░░██╗░█████╗░░█████╗░░░░░░░███████╗██╗
░██║░░██╗░░██║██╔══██╗██╔══██╗░░░░░░██╔════╝██║
░╚██╗████╗██╔╝██║░░██║██║░░██║█████╗█████╗░░██║
░░████╔═████║░██║░░██║██║░░██║╚════╝██╔══╝░░██║
░░╚██╔╝░╚██╔╝░╚█████╔╝╚█████╔╝░░░░░░██║░░░░░██║
░░░╚═╝░░░╚═╝░░░╚════╝░░╚════╝░░░░░░░╚═╝░░░░░╚═╝

*
* MIT License
* ===========
*
* Copyright (c) 2020 WooTrade
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/

/// @title WOOFi cross chain router interface (version 3, supporting WOOFi and 1inch).
/// @notice functions to interface with WOOFi cross chain swap, and 1inch for local swap
interface IWooCrossChainRouterV3 {
    /* ----- Structs ----- */

    struct SrcInfos {
        address fromToken;
        address bridgeToken;
        uint256 fromAmount;
        uint256 minBridgeAmount;
    }

    struct Src1inch {
        address swapRouter;
        bytes data;
    }

    struct DstInfos {
        uint16 chainId;
        address toToken;
        address bridgeToken;
        uint256 minToAmount;
        uint256 airdropNativeAmount;
        uint256 dstGasForCall;
    }

    struct Dst1inch {
        address swapRouter;
        bytes data;
    }

    /* ----- Events ----- */

    event WooCrossSwapOnSrcChain(
        uint256 indexed refId,
        address indexed sender,
        address indexed to,
        address fromToken,
        uint256 fromAmount,
        address bridgeToken,
        uint256 minBridgeAmount,
        uint256 realBridgeAmount,
        uint8 swapType,
        uint256 fee
    );

    event WooCrossSwapOnDstChain(
        uint256 indexed refId,
        address indexed sender,
        address indexed to,
        address bridgedToken,
        uint256 bridgedAmount,
        address toToken,
        address realToToken,
        uint256 minToAmount,
        uint256 realToAmount,
        uint8 swapType,
        uint256 fee
    );

    /* ----- State Variables ----- */

    function bridgeSlippage() external view returns (uint256);

    function wooCrossRouters(uint16 chainId) external view returns (address wooCrossRouter);

    /* ----- Functions ----- */

    function crossSwap(
        uint256 refId,
        address payable to,
        SrcInfos memory srcInfos,
        DstInfos calldata dstInfos,
        Src1inch calldata src1inch,
        Dst1inch calldata dst1inch
    ) external payable;

    function sgReceive(
        uint16 srcChainId,
        bytes memory srcAddress,
        uint256 nonce,
        address bridgedToken,
        uint256 amountLD,
        bytes memory payload
    ) external;

    function quoteLayerZeroFee(
        uint256 refId,
        address to,
        DstInfos calldata dstInfos,
        Dst1inch calldata dst1inch
    ) external view returns (uint256 nativeAmount, uint256 zroAmount);
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

/// @title Wrapped ETH.
interface IWETH {
    /// @dev Deposit ETH into WETH
    function deposit() external payable;

    /// @dev Transfer WETH to receiver
    /// @param to address of WETH receiver
    /// @param value amount of WETH to transfer
    /// @return get true when succeed, else false
    function transfer(address to, uint256 value) external returns (bool);

    /// @dev Withdraw WETH to ETH
    function withdraw(uint256) external;
}

// SPDX-License-Identifier: MIT
pragma solidity =0.8.14;

/*

░██╗░░░░░░░██╗░█████╗░░█████╗░░░░░░░███████╗██╗
░██║░░██╗░░██║██╔══██╗██╔══██╗░░░░░░██╔════╝██║
░╚██╗████╗██╔╝██║░░██║██║░░██║█████╗█████╗░░██║
░░████╔═████║░██║░░██║██║░░██║╚════╝██╔══╝░░██║
░░╚██╔╝░╚██╔╝░╚█████╔╝╚█████╔╝░░░░░░██║░░░░░██║
░░░╚═╝░░░╚═╝░░░╚════╝░░╚════╝░░░░░░░╚═╝░░░░░╚═╝

*
* MIT License
* ===========
*
* Copyright (c) 2020 WooTrade
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/

/// @title Woo private pool for swap.
/// @notice Use this contract to directly interfact with woo's synthetic proactive
///         marketing making pool.
/// @author woo.network
interface IWooPPV2 {
    /* ----- Events ----- */

    event Deposit(address indexed token, address indexed sender, uint256 amount);
    event Withdraw(address indexed token, address indexed receiver, uint256 amount);
    event Migrate(address indexed token, address indexed receiver, uint256 amount);
    event AdminUpdated(address indexed addr, bool flag);
    event FeeAddrUpdated(address indexed newFeeAddr);
    event WooracleUpdated(address indexed newWooracle);
    event WooSwap(
        address indexed fromToken,
        address indexed toToken,
        uint256 fromAmount,
        uint256 toAmount,
        address from,
        address indexed to,
        address rebateTo,
        uint256 swapVol,
        uint256 swapFee
    );

    /* ----- External Functions ----- */

    /// @notice The quote token address (immutable).
    /// @return address of quote token
    function quoteToken() external view returns (address);

    /// @notice Gets the pool size of the specified token (swap liquidity).
    /// @param token the token address
    /// @return the pool size
    function poolSize(address token) external view returns (uint256);

    /// @notice Query the amount to swap `fromToken` to `toToken`, without checking the pool reserve balance.
    /// @param fromToken the from token
    /// @param toToken the to token
    /// @param fromAmount the amount of `fromToken` to swap
    /// @return toAmount the swapped amount of `toToken`
    function tryQuery(
        address fromToken,
        address toToken,
        uint256 fromAmount
    ) external view returns (uint256 toAmount);

    /// @notice Query the amount to swap `fromToken` to `toToken`, with checking the pool reserve balance.
    /// @dev tx reverts when 'toToken' balance is insufficient.
    /// @param fromToken the from token
    /// @param toToken the to token
    /// @param fromAmount the amount of `fromToken` to swap
    /// @return toAmount the swapped amount of `toToken`
    function query(
        address fromToken,
        address toToken,
        uint256 fromAmount
    ) external view returns (uint256 toAmount);

    /// @notice Swap `fromToken` to `toToken`.
    /// @param fromToken the from token
    /// @param toToken the to token
    /// @param fromAmount the amount of `fromToken` to swap
    /// @param minToAmount the minimum amount of `toToken` to receive
    /// @param to the destination address
    /// @param rebateTo the rebate address (optional, can be address ZERO)
    /// @return realToAmount the amount of toToken to receive
    function swap(
        address fromToken,
        address toToken,
        uint256 fromAmount,
        uint256 minToAmount,
        address to,
        address rebateTo
    ) external returns (uint256 realToAmount);

    /// @notice Deposit the specified token into the liquidity pool of WooPPV2.
    /// @param token the token to deposit
    /// @param amount the deposit amount
    function deposit(address token, uint256 amount) external;
}

// SPDX-License-Identifier: MIT
pragma solidity =0.8.14;

/*

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░╚██╗████╗██╔╝██║░░██║██║░░██║█████╗█████╗░░██║
░░████╔═████║░██║░░██║██║░░██║╚════╝██╔══╝░░██║
░░╚██╔╝░╚██╔╝░╚█████╔╝╚█████╔╝░░░░░░██║░░░░░██║
░░░╚═╝░░░╚═╝░░░╚════╝░░╚════╝░░░░░░░╚═╝░░░░░╚═╝

*
* MIT License
* ===========
*
* Copyright (c) 2020 WooTrade
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/

import "../interfaces/IWooPPV2.sol";

/// @title Woo router interface (version 2)
/// @notice functions to interface with WooFi swap
interface IWooRouterV2 {
    /* ----- Type declarations ----- */

    enum SwapType {
        WooSwap,
        DodoSwap
    }

    /* ----- Events ----- */

    event WooRouterSwap(
        SwapType swapType,
        address indexed fromToken,
        address indexed toToken,
        uint256 fromAmount,
        uint256 toAmount,
        address from,
        address indexed to,
        address rebateTo
    );

    event WooPoolChanged(address newPool);

    /* ----- Router properties ----- */

    function WETH() external view returns (address);

    function wooPool() external view returns (IWooPPV2);

    /* ----- Main query & swap APIs ----- */

    /// @notice query the amount to swap fromToken -> toToken
    /// @param fromToken the from token
    /// @param toToken the to token
    /// @param fromAmount the amount of fromToken to swap
    /// @return toAmount the predicted amount to receive
    function querySwap(
        address fromToken,
        address toToken,
        uint256 fromAmount
    ) external view returns (uint256 toAmount);

    /// @notice query the amount to swap fromToken -> toToken,
    ///     WITHOUT checking the reserve balance; so it
    ///     always returns the quoted amount (for reference).
    /// @param fromToken the from token
    /// @param toToken the to token
    /// @param fromAmount the amount of fromToken to swap
    /// @return toAmount the predicted amount to receive
    function tryQuerySwap(
        address fromToken,
        address toToken,
        uint256 fromAmount
    ) external view returns (uint256 toAmount);

    /// @notice Swap `fromToken` to `toToken`.
    /// @param fromToken the from token
    /// @param toToken the to token
    /// @param fromAmount the amount of `fromToken` to swap
    /// @param minToAmount the minimum amount of `toToken` to receive
    /// @param to the destination address
    /// @param rebateTo the rebate address (optional, can be 0)
    /// @return realToAmount the amount of toToken to receive
    function swap(
        address fromToken,
        address toToken,
        uint256 fromAmount,
        uint256 minToAmount,
        address payable to,
        address rebateTo
    ) external payable returns (uint256 realToAmount);

    /* ----- 3rd party DEX swap ----- */

    /// @notice swap fromToken -> toToken via an external 3rd swap
    /// @param approveTarget the contract address for token transfer approval
    /// @param swapTarget the contract address for swap
    /// @param fromToken the from token
    /// @param toToken the to token
    /// @param fromAmount the amount of fromToken to swap
    /// @param minToAmount the min amount of swapped toToken
    /// @param to the destination address
    /// @param data call data for external call
    function externalSwap(
        address approveTarget,
        address swapTarget,
        address fromToken,
        address toToken,
        uint256 fromAmount,
        uint256 minToAmount,
        address payable to,
        bytes calldata data
    ) external payable returns (uint256 realToAmount);
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

/**
 * @dev Interface of the LzApp that functions not exist in the @layerzerolabs package
 */
interface ILzApp {
    function minDstGasLookup(uint16 _dstChainId, uint16 _type) external view returns (uint256 _minGasLimit);
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

interface IStargateEthVault {
    function deposit() external payable;

    function transfer(address to, uint256 value) external returns (bool);

    function withdraw(uint256) external;

    function approve(address guy, uint256 wad) external returns (bool);

    function transferFrom(
        address src,
        address dst,
        uint256 wad
    ) external returns (bool);
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

interface IStargateRouter {
    struct lzTxObj {
        uint256 dstGasForCall;
        uint256 dstNativeAmount;
        bytes dstNativeAddr;
    }

    function addLiquidity(
        uint256 _poolId,
        uint256 _amountLD,
        address _to
    ) external;

    function swap(
        uint16 _dstChainId,
        uint256 _srcPoolId,
        uint256 _dstPoolId,
        address payable _refundAddress,
        uint256 _amountLD,
        uint256 _minAmountLD,
        lzTxObj memory _lzTxParams,
        bytes calldata _to,
        bytes calldata _payload
    ) external payable;

    function redeemRemote(
        uint16 _dstChainId,
        uint256 _srcPoolId,
        uint256 _dstPoolId,
        address payable _refundAddress,
        uint256 _amountLP,
        uint256 _minAmountLD,
        bytes calldata _to,
        lzTxObj memory _lzTxParams
    ) external payable;

    function instantRedeemLocal(
        uint16 _srcPoolId,
        uint256 _amountLP,
        address _to
    ) external returns (uint256);

    function redeemLocal(
        uint16 _dstChainId,
        uint256 _srcPoolId,
        uint256 _dstPoolId,
        address payable _refundAddress,
        uint256 _amountLP,
        bytes calldata _to,
        lzTxObj memory _lzTxParams
    ) external payable;

    function sendCredits(
        uint16 _dstChainId,
        uint256 _srcPoolId,
        uint256 _dstPoolId,
        address payable _refundAddress
    ) external payable;

    function quoteLayerZeroFee(
        uint16 _dstChainId,
        uint8 _functionType,
        bytes calldata _toAddress,
        bytes calldata _transferAndCallPayload,
        lzTxObj memory _lzTxParams
    ) external view returns (uint256, uint256);
}

// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity ^0.8.0;

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

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

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

    function safeTransferETH(address to, uint256 value) internal {
        (bool success, ) = to.call{value: value}(new bytes(0));
        require(success, "TransferHelper::safeTransferETH: ETH transfer failed");
    }
}

{
  "optimizer": {
    "enabled": true,
    "runs": 20000
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "libraries": {}
}

• No Contract Security Audit Submitted- Submit Audit Here

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IWooRouterV2","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"stateMutability":"payable","type":"receive"}]

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000000000000000000000000420000000000000000000000000000000000000600000000000000000000000027425e9fb6a9a625e8484cfd9620851d1fa322e5000000000000000000000000be07e5eb5e4b6ca700586b41e4ecab614ad3a05b

-----Decoded View---------------
Arg [0] : _weth (address): 0x4200000000000000000000000000000000000006
Arg [1] : _wooRouter (address): 0x27425e9FB6A9A625E8484CFD9620851D1Fa322E5
Arg [2] : _sgInfo (address): 0xbe07E5EB5e4B6ca700586b41e4eCAB614Ad3a05b

-----Encoded View---------------
3 Constructor Arguments found :
Arg [0] : 0000000000000000000000004200000000000000000000000000000000000006
Arg [1] : 00000000000000000000000027425e9fb6a9a625e8484cfd9620851d1fa322e5
Arg [2] : 000000000000000000000000be07e5eb5e4b6ca700586b41e4ecab614ad3a05b