// File: contracts/Aggregator/OkxNFTMarketAggregator.sol



// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;

import "../tools/SecurityBaseFor8.sol";
import "@openzeppelin/contracts/security/ReentrancyGuard.sol";
import "./markets/MarketRegistry.sol";
import "./interfaces/markets/IOkxNFTMarketAggregator.sol";
import "@openzeppelin/contracts/token/ERC721/utils/ERC721Holder.sol";
import "@openzeppelin/contracts/token/ERC1155/utils/ERC1155Holder.sol";
import "../Adapters/libs/OKXSeaportLib.sol";
import "../Adapters/libs/SeaportLib.sol";
//import "hardhat/console.sol";

library MyTools {
    function getSlice(
        uint256 begin,
        uint256 end,
        bytes memory text
    ) internal pure returns (bytes memory) {
        uint256 length = end - begin;
        bytes memory a = new bytes(length + 1);
        for (uint256 i = 0; i <= length; i++) {
            a[i] = text[i + begin - 1];
        }
        return a;
    }

    function bytesToAddress(bytes memory bys)
        internal
        view
        returns (address addr)
    {
        assembly {
            addr := mload(add(bys, 20))
        }
    }

    function bytesToBytes4(bytes memory bys)
        internal
        view
        returns (bytes4 addr)
    {
        assembly {
            addr := mload(add(bys, 32))
        }
    }
}

contract OkxNFTMarketAggregator is
    IOkxNFTMarketAggregator,
    SecurityBaseFor8,
    ReentrancyGuard,
    ERC721Holder,
    ERC1155Holder
{
    bool private _initialized;
    MarketRegistry public marketRegistry;

    bytes4 private constant _SEAPORT_ADAPTER_SEAPORTBUY = 0xb30f2249;
    bytes4 private constant _SEAPORT_ADAPTER_SEAACCEPT = 0x13a6f9b9;
    bytes4 private constant _SEAPORT_ADAPTER_SEAPORTBUY_ETH = 0x3f4a7fd1;
    uint private  constant _SEAPORT_LIB = 7;
    uint private constant _OKX_SEAPORT_LIB = 8;

    uint256 private constant _SEAPORT_BUY_ETH = 1;
    uint256 private constant _SEAPORT_BUY_ERC20 = 2;
    uint256 private constant _SEAPORT_ACCEPT = 3;

    event MatchOrderResults(bytes32[] orderHashes, bool[] results);

    struct AggregatorParam{
        uint256 payAmount;
        address payToken;
        address tokenAddress;
        uint256 tokenId;
        uint256 amount;
        uint256 tradeType;
    }

    function init(address newOwner) external {
        require(!_initialized, "Already initialized");
        _initialized = true;
        _transferOwnership(newOwner);
    }

    function setMarketRegistry(address _marketRegistry) external onlyOwner {
        marketRegistry = MarketRegistry(_marketRegistry);
    }

    //compatibleOldVersion
    function trade(MarketRegistry.TradeDetails[] memory tradeDetails)
        external
        payable
        nonReentrant
    {
        uint256 length = tradeDetails.length;
        bytes32[] memory orderHashes = new bytes32[](length);
        bool[] memory results = new bool[](length);
        uint256 giveBackValue;

        for (uint256 i = 0; i < length; i++) {
            (address proxy, bool isLib, bool isActive) = marketRegistry.markets(
                tradeDetails[i].marketId
            );

            if (!isActive) {
                continue;
            }

            bytes memory tradeData = tradeDetails[i].tradeData;
            uint256 ethValue = tradeDetails[i].value;

            //okc wyvern
            if (
                tradeDetails[i].marketId ==
                uint256(MarketInfo.OKEXCHANGE_ERC20_ADAPTER)
            ) {
                bytes memory tempAddr = MyTools.getSlice(49, 68, tradeData);
                address orderToAddress = MyTools.bytesToAddress(tempAddr);
                require(
                    orderToAddress == msg.sender,
                    "OKExchange orderToAddress error!"
                );
            } else if (
                tradeDetails[i].marketId ==
                uint256(MarketInfo.LOOKSRARE_ADAPTER)
            ) {
                //looksrare
                bytes memory tempAddr = MyTools.getSlice(81, 100, tradeData);
                address orderToAddress = MyTools.bytesToAddress(tempAddr);
                require(
                    orderToAddress == msg.sender,
                    "Loosrare orderToAddress error!"
                );
            } else if (
                tradeDetails[i].marketId ==
                uint256(MarketInfo.OPENSEA_SEAPORT_ADAPTER)
            ) {
                //opensea seaport
                bytes memory tempSelector = MyTools.getSlice(1, 4, tradeData);
                bytes4 functionSelector = MyTools.bytesToBytes4(tempSelector);
                if (
                    functionSelector == _SEAPORT_ADAPTER_SEAPORTBUY ||
                    functionSelector == _SEAPORT_ADAPTER_SEAPORTBUY_ETH
                ) {
                    bytes memory tempAddr = MyTools.getSlice(49, 68, tradeData);
                    address orderToAddress = MyTools.bytesToAddress(tempAddr);
                    require(
                        orderToAddress == msg.sender,
                        "Opensea Seaport Buy orderToAddress error!"
                    );
                } else if (functionSelector == _SEAPORT_ADAPTER_SEAACCEPT) {
                    bytes memory tempAddr = MyTools.getSlice(
                        81,
                        100,
                        tradeData
                    );
                    address orderToAddress = MyTools.bytesToAddress(tempAddr);
                    require(
                        orderToAddress == msg.sender,
                        "Opensea Seaport Accept orderToAddress error!"
                    );
                } else {
                    revert("seaport adapter function error");
                }
            }

            (bool success, ) = isLib
                ? proxy.delegatecall(tradeData)
                : proxy.call{value: ethValue}(tradeData);

            orderHashes[i] = tradeDetails[i].orderHash;
            results[i] = success;

            if (!success) {
                giveBackValue += ethValue;
            }
        }

        if (giveBackValue > 0) {
            (bool transfered, bytes memory reason) = msg.sender.call{
                value: giveBackValue-1
            }("");
            require(transfered, string(reason));
        }

        emit MatchOrderResults(orderHashes, results);
    }

    //TODO
    function trade(
        MarketRegistry.TradeDetails[] memory tradeDetails,
        bool isFailed
    ) external payable nonReentrant {
        uint256 length = tradeDetails.length;
        bytes32[] memory orderHashes = new bytes32[](length);
        bool[] memory results = new bool[](length);
        uint256 giveBackValue;

        for (uint256 i = 0; i < length; i++) {
            (address proxy, bool isLib, bool isActive) = marketRegistry.markets(
                tradeDetails[i].marketId
            );

            if (!isActive) {
                continue;
            }

            bytes memory tradeData = tradeDetails[i].tradeData;
            uint256 ethValue = tradeDetails[i].value;

            //okc wyvern
            if (tradeDetails[i].marketId == 4) {
                bytes memory tempAddr = MyTools.getSlice(49, 68, tradeData);
                address orderToAddress = MyTools.bytesToAddress(tempAddr);
                require(orderToAddress == msg.sender, "orderToAddress error!");
            } else if (tradeDetails[i].marketId == 2) {
                //looksrare
                bytes memory tempAddr = MyTools.getSlice(81, 100, tradeData);
                address orderToAddress = MyTools.bytesToAddress(tempAddr);
                require(orderToAddress == msg.sender, "orderToAddress error!");
            } else if (tradeDetails[i].marketId == 3) {
                //opensea seaport
                bytes memory tempSelector = MyTools.getSlice(1, 4, tradeData);
                bytes4 functionSelector = MyTools.bytesToBytes4(tempSelector);
                if (
                    functionSelector == _SEAPORT_ADAPTER_SEAPORTBUY ||
                    functionSelector == _SEAPORT_ADAPTER_SEAPORTBUY_ETH
                ) {
                    bytes memory tempAddr = MyTools.getSlice(49, 68, tradeData);
                    address orderToAddress = MyTools.bytesToAddress(tempAddr);
                    require(
                        orderToAddress == msg.sender,
                        "orderToAddress error!"
                    );
                } else if (functionSelector == _SEAPORT_ADAPTER_SEAACCEPT) {
                    bytes memory tempAddr = MyTools.getSlice(
                        81,
                        100,
                        tradeData
                    );
                    address orderToAddress = MyTools.bytesToAddress(tempAddr);
                    require(
                        orderToAddress == msg.sender,
                        "orderToAddress error!"
                    );
                } else {
                    revert("seaport adapter function error");
                }
            }

            (bool success, ) = isLib
                ? proxy.delegatecall(tradeData)
                : proxy.call{value: ethValue}(tradeData);
            if (isFailed && !success) {
                revert("Transaction Failed!");
            }
            orderHashes[i] = tradeDetails[i].orderHash;
            results[i] = success;

            if (!success) {
                giveBackValue += ethValue;
            }
        }

        if (giveBackValue > 0) {
            (bool transfered, bytes memory reason) = msg.sender.call{
                value: giveBackValue-1
            }("");
            require(transfered, string(reason));
        }

        emit MatchOrderResults(orderHashes, results);
    }

    //TODO
    function tradeV2(
        MarketRegistry.TradeDetails[] calldata tradeDetails,
        AggregatorParam[] calldata aggregatorParam,
        bool isAtomic
    ) external payable nonReentrant {
        //uint256 length = tradeDetails.length;
        bytes32[] memory orderHashes = new bytes32[](tradeDetails.length);
        bool[] memory results = new bool[](tradeDetails.length);
        uint256 giveBackValue;

        for (uint256 i = 0; i < tradeDetails.length;) {

            require(tradeDetails[i].marketId > 6,"tradeV2 didn't support!");

            (address proxy, bool isLib, bool isActive) = marketRegistry.markets(
                tradeDetails[i].marketId
            );

            if (!isActive) {
                continue;
            }

            bool success;
            //bytes memory tradeData = tradeDetails[i].tradeData;
            //uint256 ethValue = tradeDetails[i].value;

            if(tradeDetails[i].marketId==_SEAPORT_LIB||tradeDetails[i].marketId==_OKX_SEAPORT_LIB){

                processSeaport(tradeDetails[i],aggregatorParam[i]);
                success = true;
            }else{

                (success, ) = isLib
                ? proxy.delegatecall(tradeDetails[i].tradeData)
                : proxy.call{value: tradeDetails[i].value}(tradeDetails[i].tradeData);
            }

            if (isAtomic && !success) {
                revert("Transaction Failed!");
            }
            orderHashes[i] = tradeDetails[i].orderHash;
            results[i] = success;

            if (!success) {
                giveBackValue += tradeDetails[i].value;
            }
            unchecked {
                ++i;
            }
        }

        if (giveBackValue > 0) {
            (bool transfered, bytes memory reason) = msg.sender.call{
                value: giveBackValue - 1
            }("");
            require(transfered, string(reason));
        }

        emit MatchOrderResults(orderHashes, results);
    }

    function processSeaport(MarketRegistry.TradeDetails calldata tradeDetail,AggregatorParam calldata param) internal {
        //native token
        if(param.tradeType==_SEAPORT_BUY_ETH){
            if(tradeDetail.marketId==_SEAPORT_LIB){
                SeaportLib.buyAssetForETH(tradeDetail.tradeData, param.payAmount);
            }else if(tradeDetail.marketId==_OKX_SEAPORT_LIB){
                OKXSeaportLib.buyAssetForETH(tradeDetail.tradeData,param.payAmount);
            }
        }else if(param.tradeType==_SEAPORT_BUY_ERC20){
            //erc20 buy
            //console.logBytes(seaportData);
            if(tradeDetail.marketId==_SEAPORT_LIB){
                SeaportLib.buyAssetForERC20(tradeDetail.tradeData,param.payToken,param.payAmount);
            }else if(tradeDetail.marketId==_OKX_SEAPORT_LIB){
                OKXSeaportLib.buyAssetForERC20(tradeDetail.tradeData,param.payToken,param.payAmount);
            }
        }else if(param.tradeType==_SEAPORT_ACCEPT){
            //take offer
            if(tradeDetail.marketId==_SEAPORT_LIB){
                SeaportLib.takeOfferForERC20(tradeDetail.tradeData, param.tokenAddress, param.tokenId,
                    param.amount, param.payToken, param.tradeType);
            }else if(tradeDetail.marketId==_OKX_SEAPORT_LIB){
                OKXSeaportLib.takeOfferForERC20(tradeDetail.tradeData, param.tokenAddress, param.tokenId,
                    param.amount, param.payToken, param.tradeType);
            }
        }
    }
}

// File: contracts/tools/SecurityBaseFor8.sol



pragma solidity ^0.8.0;

import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/utils/Address.sol";
import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";

/**
 * @dev Main functions:
 */
abstract contract SecurityBaseFor8 is Ownable {

    using SafeERC20 for IERC20;
    using Address for address payable;
    using Address for address;

    event EmergencyWithdraw(address token, address to, uint256 amount);
    event SetWhitelist(address account, bool knob);

    // whitelist
    mapping(address => bool) public whitelist;

    constructor() {}

    modifier onlyWhitelist() {
        require(whitelist[msg.sender], "SecurityBase::onlyWhitelist: isn't in the whitelist");
        _;
    }

    function setWhitelist(address account, bool knob) external onlyOwner {
        whitelist[account] = knob;
        emit SetWhitelist(account, knob);
    }

    function withdraw(address token, address to, uint256 amount) external onlyOwner {
        if (token.isContract()) {
            IERC20(token).safeTransfer(to, amount);
        } else {
            payable(to).sendValue(amount);
        }
        emit EmergencyWithdraw(token, to, amount);
    }
}
// File: @openzeppelin/contracts/security/ReentrancyGuard.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (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() {
        // On the first call to nonReentrant, _notEntered will be true
        require(_status != _ENTERED, "ReentrancyGuard: reentrant call");

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

        _;

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

// File: contracts/Aggregator/markets/MarketRegistry.sol



// SPDX-License-Identifier: BUSL-1.1

pragma solidity 0.8.4;

import "@openzeppelin/contracts/access/Ownable.sol";

contract MarketRegistry is Ownable {
    struct TradeDetails {
        uint256 marketId;
        uint256 value;
        bytes32 orderHash;
        bytes tradeData;
    }

    struct Market {
        address proxy;
        bool isLib;
        bool isActive;
    }

    event NewMarketAdded(
        address indexed proxy,
        uint256 indexed marketId,
        bool isLib
    );

    event MarketStatusChanged(
        uint256 indexed marketId,
        bool indexed oldStatus,
        bool indexed newStatus
    );

    event MarketProxyChanged(
        uint256 indexed marketId,
        address indexed oldProxy,
        address indexed newProxy,
        bool oldIsLib,
        bool newIsLib
    );

    

    Market[] public markets;

    constructor(address[] memory proxies, bool[] memory isLibs) {
        for (uint256 i = 0; i < proxies.length; i++) {
            markets.push(Market(proxies[i], isLibs[i], true));
        }
    }

    function addMarket(address proxy, bool isLib) external onlyOwner {
        markets.push(Market(proxy, isLib, true));
        emit NewMarketAdded(proxy, markets.length - 1, isLib);
    }

    function setMarketStatus(uint256 marketId, bool newStatus)
        external
        onlyOwner
    {
        Market storage market = markets[marketId];
        require(market.isActive != newStatus, "Market Status is Same with newStatus");
        emit MarketStatusChanged(marketId, market.isActive, newStatus);
        market.isActive = newStatus;
    }

    function setMarketProxy(
        uint256 marketId,
        address newProxy,
        bool isLib
    ) external onlyOwner {
        Market storage market = markets[marketId];
        emit MarketProxyChanged(
            marketId,
            market.proxy,
            newProxy,
            market.isLib,
            isLib
        );
        market.proxy = newProxy;
        market.isLib = isLib;
    }

    function getMarketInfo(uint256 marketId)
        external
        view
        returns (
            address proxy,
            bool isLib,
            bool isActive
        )
    {
        Market memory marketInfo = markets[marketId];
        proxy = marketInfo.proxy;
        isLib = marketInfo.isLib;
        isActive = marketInfo.isActive;
    }
}

// File: contracts/Aggregator/interfaces/markets/IOkxNFTMarketAggregator.sol



// SPDX-License-Identifier: MIT

pragma solidity 0.8.4;

interface IOkxNFTMarketAggregator {
    enum MarketInfo {
        OKEXCHANGE_MAINNETTOKEN,   
        WYVERN_EXCHANGE,
        LOOKSRARE_ADAPTER,
        OPENSEA_SEAPORT_ADAPTER,
        OKEXCHANGE_ERC20_ADAPTER,
        OK_SEAPORT_ADAPTER
    }
}

// File: @openzeppelin/contracts/token/ERC721/utils/ERC721Holder.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC721/utils/ERC721Holder.sol)

pragma solidity ^0.8.0;

import "../IERC721Receiver.sol";

/**
 * @dev Implementation of the {IERC721Receiver} interface.
 *
 * Accepts all token transfers.
 * Make sure the contract is able to use its token with {IERC721-safeTransferFrom}, {IERC721-approve} or {IERC721-setApprovalForAll}.
 */
contract ERC721Holder is IERC721Receiver {
    /**
     * @dev See {IERC721Receiver-onERC721Received}.
     *
     * Always returns `IERC721Receiver.onERC721Received.selector`.
     */
    function onERC721Received(
        address,
        address,
        uint256,
        bytes memory
    ) public virtual override returns (bytes4) {
        return this.onERC721Received.selector;
    }
}

// File: @openzeppelin/contracts/token/ERC1155/utils/ERC1155Holder.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC1155/utils/ERC1155Holder.sol)

pragma solidity ^0.8.0;

import "./ERC1155Receiver.sol";

/**
 * @dev _Available since v3.1._
 */
contract ERC1155Holder is ERC1155Receiver {
    function onERC1155Received(
        address,
        address,
        uint256,
        uint256,
        bytes memory
    ) public virtual override returns (bytes4) {
        return this.onERC1155Received.selector;
    }

    function onERC1155BatchReceived(
        address,
        address,
        uint256[] memory,
        uint256[] memory,
        bytes memory
    ) public virtual override returns (bytes4) {
        return this.onERC1155BatchReceived.selector;
    }
}

// File: contracts/Adapters/libs/OKXSeaportLib.sol



// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;


import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
import "@openzeppelin/contracts/token/ERC721/IERC721.sol";
import "@openzeppelin/contracts/token/ERC1155/IERC1155.sol";
import {TradeType} from "./TradeType.sol";


library OKXSeaportLib {

    using SafeERC20 for IERC20;

    address constant private OKX_CONDUIT = 0x97cf28FfEcBACC60E2b6983d3508d4F3c9A3207d;

    address constant private OKX_SEAPORT = 0x90A77DD8AE0525e08b1C2930eb2Eb650E78c6725;

    function buyAssetForETH (
        bytes memory _calldata,
        uint256 payAmount
    ) internal {
        address payable seaport = payable(
            OKX_SEAPORT
        );
        (bool success, ) =  seaport.call{value: payAmount}(_calldata);

        require(success, "Seaport buy failed");
    }


    function buyAssetForERC20(
        bytes memory _calldata,
        address payToken,
        uint256 payAmount
    ) internal {
        IERC20(payToken).safeTransferFrom(msg.sender,
            address(this),
            payAmount
        );
        IERC20(payToken).safeApprove(OKX_CONDUIT, payAmount);
        //IERC721(tokenAddress).setApprovalForAll(address(0x1E0049783F008A0085193E00003D00cd54003c71),true);
        address payable seaport = payable(
            OKX_SEAPORT
        );

        (bool success, ) =  seaport.call(_calldata);
        require(success, "Seaport buy failed");
        // revoke approval
        IERC20(payToken).safeApprove(OKX_CONDUIT, 0);
    }


    function takeOfferForERC20(
        bytes memory _calldata,
        address tokenAddress,
        uint256 tokenId,
        uint256 amount,
        address payToken,
        uint256 tradeType
    ) internal {
        address payable seaport = payable(
            OKX_SEAPORT
        );

        _tranferNFT(tokenAddress, msg.sender, address(this), tokenId, amount,TradeType(tradeType));

        // both ERC721 and ERC1155 share the same `setApprovalForAll` method.
        IERC721(tokenAddress).setApprovalForAll(OKX_CONDUIT, true);
        IERC20(payToken).safeApprove(OKX_CONDUIT, type(uint256).max);

        (bool success, ) = seaport.call(_calldata);

        require(success, "Seaport accept offer failed");

        SafeERC20.safeTransfer(
            IERC20(payToken),
            msg.sender,
            IERC20(payToken).balanceOf(address(this))
        );

        // revoke approval.
        IERC721(tokenAddress).setApprovalForAll(OKX_CONDUIT, false);
        IERC20(payToken).safeApprove(OKX_CONDUIT, 0);

    }

    function _tranferNFT(
        address tokenAddress,
        address from,
        address recipient,
        uint256 tokenId,
        uint256 amount,
        TradeType tradeType
    ) internal {

        if (TradeType.ERC1155 == tradeType) {
            IERC1155(tokenAddress).safeTransferFrom(
                from,
                recipient,
                tokenId,
                amount,
                ""
            );
        }else if (TradeType.ERC721 == tradeType) {
            IERC721(tokenAddress).safeTransferFrom(
                from,
                recipient,
                tokenId
            );
        } else {
            revert("Unsupported interface");
        }
    }

}

// File: contracts/Adapters/libs/SeaportLib.sol



// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;


import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
import "@openzeppelin/contracts/token/ERC721/IERC721.sol";
import "@openzeppelin/contracts/token/ERC1155/IERC1155.sol";
import {TradeType} from "./TradeType.sol";


library SeaportLib {

    using SafeERC20 for IERC20;

    //conduit 0x1E0049783F008A0085193E00003D00cd54003c71;
    address constant private OPENSEA_CONDUIT = 0x1E0049783F008A0085193E00003D00cd54003c71;

    //opensea seaport 0x00000000006c3852cbEf3e08E8dF289169EdE581
    address constant private OPENSEA_SEAPORT = 0x00000000006c3852cbEf3e08E8dF289169EdE581;

    function buyAssetForETH(
        bytes memory _calldata,
        uint256 payAmount
    ) internal {
        address payable seaport = payable(
            OPENSEA_SEAPORT
        );
        (bool success, ) =  seaport.call{value: payAmount}(_calldata);

        require(success, "Seaport buy failed");
    }


    function buyAssetForERC20(
        bytes memory _calldata,
        address payToken,
        uint256 payAmount
    )internal {
        IERC20(payToken).safeTransferFrom(msg.sender,
            address(this),
            payAmount
        );
        IERC20(payToken).safeApprove(OPENSEA_CONDUIT, payAmount);
        //IERC721(tokenAddress).setApprovalForAll(address(0x1E0049783F008A0085193E00003D00cd54003c71),true);
        address payable seaport = payable(
            OPENSEA_SEAPORT
        );

        (bool success, ) =  seaport.call(_calldata);

        require(success, "Seaport buy failed");
        // revoke approval
        IERC20(payToken).safeApprove(OPENSEA_CONDUIT, 0);
    }


    function takeOfferForERC20(
        bytes memory _calldata,
        address tokenAddress,
        uint256 tokenId,
        uint256 amount,
        address payToken,
        uint256 tradeType
    ) internal {

        address payable seaport = payable(
            OPENSEA_SEAPORT
        );

        _tranferNFT(tokenAddress, msg.sender, address(this), tokenId, amount,TradeType(tradeType));
        // both ERC721 and ERC1155 share the same `setApprovalForAll` method.
        IERC721(tokenAddress).setApprovalForAll(OPENSEA_CONDUIT, true);
        IERC20(payToken).safeApprove(OPENSEA_CONDUIT, type(uint256).max);

        (bool success, ) = seaport.call(_calldata);

        require(success, "Seaport accept offer failed");

        SafeERC20.safeTransfer(
            IERC20(payToken),
            msg.sender,
            IERC20(payToken).balanceOf(address(this))
        );

        // revoke approval.
        IERC721(tokenAddress).setApprovalForAll(OPENSEA_CONDUIT, false);
        IERC20(payToken).safeApprove(OPENSEA_CONDUIT, 0);

    }

    function _tranferNFT(
        address tokenAddress,
        address from,
        address recipient,
        uint256 tokenId,
        uint256 amount,
        TradeType tradeType
    ) internal {

        if (TradeType.ERC1155 == tradeType) {
            IERC1155(tokenAddress).safeTransferFrom(
                from,
                recipient,
                tokenId,
                amount,
                ""
            );
        }else if (TradeType.ERC721 == tradeType) {
            IERC721(tokenAddress).safeTransferFrom(
                from,
                recipient,
                tokenId
            );
        } else {
            revert("Unsupported interface");
        }
    }

}

// File: @openzeppelin/contracts/access/Ownable.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (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 Returns the address of the current owner.
     */
    function owner() public view virtual returns (address) {
        return _owner;
    }

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        require(owner() == _msgSender(), "Ownable: caller is not the owner");
        _;
    }

    /**
     * @dev Leaves the contract without owner. It will not be possible to call
     * `onlyOwner` functions anymore. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby removing 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);
    }
}

// File: @openzeppelin/contracts/utils/Address.sol



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

pragma solidity ^0.8.0;

/**
 * @dev Collection of functions related to the address type
 */
library Address {
    /**
     * @dev Returns true if `account` is a contract.
     *
     * [IMPORTANT]
     * ====
     * It is unsafe to assume that an address for which this function returns
     * false is an externally-owned account (EOA) and not a contract.
     *
     * Among others, `isContract` will return false for the following
     * types of addresses:
     *
     *  - an externally-owned account
     *  - a contract in construction
     *  - an address where a contract will be created
     *  - an address where a contract lived, but was destroyed
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // This method relies on extcodesize, which returns 0 for contracts in
        // construction, since the code is only stored at the end of the
        // constructor execution.

        uint256 size;
        assembly {
            size := extcodesize(account)
        }
        return size > 0;
    }

    /**
     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
     * `recipient`, forwarding all available gas and reverting on errors.
     *
     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
     * of certain opcodes, possibly making contracts go over the 2300 gas limit
     * imposed by `transfer`, making them unable to receive funds via
     * `transfer`. {sendValue} removes this limitation.
     *
     * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
     *
     * IMPORTANT: because control is transferred to `recipient`, care must be
     * taken to not create reentrancy vulnerabilities. Consider using
     * {ReentrancyGuard} or the
     * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
     */
    function sendValue(address payable recipient, uint256 amount) internal {
        require(address(this).balance >= amount, "Address: insufficient balance");

        (bool success, ) = recipient.call{value: amount}("");
        require(success, "Address: unable to send value, recipient may have reverted");
    }

    /**
     * @dev Performs a Solidity function call using a low level `call`. A
     * plain `call` is an unsafe replacement for a function call: use this
     * function instead.
     *
     * If `target` reverts with a revert reason, it is bubbled up by this
     * function (like regular Solidity function calls).
     *
     * Returns the raw returned data. To convert to the expected return value,
     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
     *
     * Requirements:
     *
     * - `target` must be a contract.
     * - calling `target` with `data` must not revert.
     *
     * _Available since v3.1._
     */
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionCall(target, data, "Address: low-level call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
     * `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but also transferring `value` wei to `target`.
     *
     * Requirements:
     *
     * - the calling contract must have an ETH balance of at least `value`.
     * - the called Solidity function must be `payable`.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(
        address target,
        bytes memory data,
        uint256 value
    ) internal returns (bytes memory) {
        return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
    }

    /**
     * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
     * with `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(
        address target,
        bytes memory data,
        uint256 value,
        string memory errorMessage
    ) internal returns (bytes memory) {
        require(address(this).balance >= value, "Address: insufficient balance for call");
        require(isContract(target), "Address: call to non-contract");

        (bool success, bytes memory returndata) = target.call{value: value}(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
        return functionStaticCall(target, data, "Address: low-level static call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal view returns (bytes memory) {
        require(isContract(target), "Address: static call to non-contract");

        (bool success, bytes memory returndata) = target.staticcall(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionDelegateCall(target, data, "Address: low-level delegate call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        require(isContract(target), "Address: delegate call to non-contract");

        (bool success, bytes memory returndata) = target.delegatecall(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the
     * revert reason using the provided one.
     *
     * _Available since v4.3._
     */
    function verifyCallResult(
        bool success,
        bytes memory returndata,
        string memory errorMessage
    ) internal pure returns (bytes memory) {
        if (success) {
            return returndata;
        } else {
            // Look for revert reason and bubble it up if present
            if (returndata.length > 0) {
                // The easiest way to bubble the revert reason is using memory via assembly

                assembly {
                    let returndata_size := mload(returndata)
                    revert(add(32, returndata), returndata_size)
                }
            } else {
                revert(errorMessage);
            }
        }
    }
}

// File: @openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC20/utils/SafeERC20.sol)

pragma solidity ^0.8.0;

import "../IERC20.sol";
import "../../../utils/Address.sol";

/**
 * @title SafeERC20
 * @dev Wrappers around ERC20 operations that throw on failure (when the token
 * contract returns false). Tokens that return no value (and instead revert or
 * throw on failure) are also supported, non-reverting calls are assumed to be
 * successful.
 * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,
 * which allows you to call the safe operations as `token.safeTransfer(...)`, etc.
 */
library SafeERC20 {
    using Address for address;

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

    function safeTransferFrom(
        IERC20 token,
        address from,
        address to,
        uint256 value
    ) internal {
        _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));
    }

    /**
     * @dev Deprecated. This function has issues similar to the ones found in
     * {IERC20-approve}, and its usage is discouraged.
     *
     * Whenever possible, use {safeIncreaseAllowance} and
     * {safeDecreaseAllowance} instead.
     */
    function safeApprove(
        IERC20 token,
        address spender,
        uint256 value
    ) internal {
        // safeApprove should only be called when setting an initial allowance,
        // or when resetting it to zero. To increase and decrease it, use
        // 'safeIncreaseAllowance' and 'safeDecreaseAllowance'
        require(
            (value == 0) || (token.allowance(address(this), spender) == 0),
            "SafeERC20: approve from non-zero to non-zero allowance"
        );
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));
    }

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

    function safeDecreaseAllowance(
        IERC20 token,
        address spender,
        uint256 value
    ) internal {
        unchecked {
            uint256 oldAllowance = token.allowance(address(this), spender);
            require(oldAllowance >= value, "SafeERC20: decreased allowance below zero");
            uint256 newAllowance = oldAllowance - value;
            _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
        }
    }

    /**
     * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
     * on the return value: the return value is optional (but if data is returned, it must not be false).
     * @param token The token targeted by the call.
     * @param data The call data (encoded using abi.encode or one of its variants).
     */
    function _callOptionalReturn(IERC20 token, bytes memory data) private {
        // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
        // we're implementing it ourselves. We use {Address.functionCall} to perform this call, which verifies that
        // the target address contains contract code and also asserts for success in the low-level call.

        bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed");
        if (returndata.length > 0) {
            // Return data is optional
            require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
        }
    }
}

// File: @openzeppelin/contracts/utils/Context.sol



// 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;
    }
}

// File: @openzeppelin/contracts/token/ERC20/IERC20.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC20/IERC20.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
    /**
     * @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 `recipient`.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transfer(address recipient, 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 `sender` to `recipient` 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 sender,
        address recipient,
        uint256 amount
    ) external returns (bool);

    /**
     * @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);
}

// File: @openzeppelin/contracts/token/ERC721/IERC721Receiver.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC721/IERC721Receiver.sol)

pragma solidity ^0.8.0;

/**
 * @title ERC721 token receiver interface
 * @dev Interface for any contract that wants to support safeTransfers
 * from ERC721 asset contracts.
 */
interface IERC721Receiver {
    /**
     * @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom}
     * by `operator` from `from`, this function is called.
     *
     * It must return its Solidity selector to confirm the token transfer.
     * If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted.
     *
     * The selector can be obtained in Solidity with `IERC721.onERC721Received.selector`.
     */
    function onERC721Received(
        address operator,
        address from,
        uint256 tokenId,
        bytes calldata data
    ) external returns (bytes4);
}

// File: @openzeppelin/contracts/token/ERC1155/utils/ERC1155Receiver.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC1155/utils/ERC1155Receiver.sol)

pragma solidity ^0.8.0;

import "../IERC1155Receiver.sol";
import "../../../utils/introspection/ERC165.sol";

/**
 * @dev _Available since v3.1._
 */
abstract contract ERC1155Receiver is ERC165, IERC1155Receiver {
    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) {
        return interfaceId == type(IERC1155Receiver).interfaceId || super.supportsInterface(interfaceId);
    }
}

// File: @openzeppelin/contracts/token/ERC1155/IERC1155Receiver.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC1155/IERC1155Receiver.sol)

pragma solidity ^0.8.0;

import "../../utils/introspection/IERC165.sol";

/**
 * @dev _Available since v3.1._
 */
interface IERC1155Receiver is IERC165 {
    /**
        @dev Handles the receipt of a single ERC1155 token type. This function is
        called at the end of a `safeTransferFrom` after the balance has been updated.
        To accept the transfer, this must return
        `bytes4(keccak256("onERC1155Received(address,address,uint256,uint256,bytes)"))`
        (i.e. 0xf23a6e61, or its own function selector).
        @param operator The address which initiated the transfer (i.e. msg.sender)
        @param from The address which previously owned the token
        @param id The ID of the token being transferred
        @param value The amount of tokens being transferred
        @param data Additional data with no specified format
        @return `bytes4(keccak256("onERC1155Received(address,address,uint256,uint256,bytes)"))` if transfer is allowed
    */
    function onERC1155Received(
        address operator,
        address from,
        uint256 id,
        uint256 value,
        bytes calldata data
    ) external returns (bytes4);

    /**
        @dev Handles the receipt of a multiple ERC1155 token types. This function
        is called at the end of a `safeBatchTransferFrom` after the balances have
        been updated. To accept the transfer(s), this must return
        `bytes4(keccak256("onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)"))`
        (i.e. 0xbc197c81, or its own function selector).
        @param operator The address which initiated the batch transfer (i.e. msg.sender)
        @param from The address which previously owned the token
        @param ids An array containing ids of each token being transferred (order and length must match values array)
        @param values An array containing amounts of each token being transferred (order and length must match ids array)
        @param data Additional data with no specified format
        @return `bytes4(keccak256("onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)"))` if transfer is allowed
    */
    function onERC1155BatchReceived(
        address operator,
        address from,
        uint256[] calldata ids,
        uint256[] calldata values,
        bytes calldata data
    ) external returns (bytes4);
}

// File: @openzeppelin/contracts/utils/introspection/ERC165.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol)

pragma solidity ^0.8.0;

import "./IERC165.sol";

/**
 * @dev Implementation of the {IERC165} interface.
 *
 * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check
 * for the additional interface id that will be supported. For example:
 *
 * ```solidity
 * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
 *     return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);
 * }
 * ```
 *
 * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation.
 */
abstract contract ERC165 is IERC165 {
    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
        return interfaceId == type(IERC165).interfaceId;
    }
}

// File: @openzeppelin/contracts/utils/introspection/IERC165.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC165 standard, as defined in the
 * https://eips.ethereum.org/EIPS/eip-165[EIP].
 *
 * 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[EIP 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);
}

// File: @openzeppelin/contracts/token/ERC721/IERC721.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC721/IERC721.sol)

pragma solidity ^0.8.0;

import "../../utils/introspection/IERC165.sol";

/**
 * @dev Required interface of an ERC721 compliant contract.
 */
interface IERC721 is IERC165 {
    /**
     * @dev Emitted when `tokenId` token is transferred from `from` to `to`.
     */
    event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);

    /**
     * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.
     */
    event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);

    /**
     * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.
     */
    event ApprovalForAll(address indexed owner, address indexed operator, bool approved);

    /**
     * @dev Returns the number of tokens in ``owner``'s account.
     */
    function balanceOf(address owner) external view returns (uint256 balance);

    /**
     * @dev Returns the owner of the `tokenId` token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function ownerOf(uint256 tokenId) external view returns (address owner);

    /**
     * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
     * are aware of the ERC721 protocol to prevent tokens from being forever locked.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must exist and be owned by `from`.
     * - If the caller is not `from`, it must be have been allowed to move this token by either {approve} or {setApprovalForAll}.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId
    ) external;

    /**
     * @dev Transfers `tokenId` token from `from` to `to`.
     *
     * WARNING: Usage of this method is discouraged, use {safeTransferFrom} whenever possible.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must be owned by `from`.
     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(
        address from,
        address to,
        uint256 tokenId
    ) external;

    /**
     * @dev Gives permission to `to` to transfer `tokenId` token to another account.
     * The approval is cleared when the token is transferred.
     *
     * Only a single account can be approved at a time, so approving the zero address clears previous approvals.
     *
     * Requirements:
     *
     * - The caller must own the token or be an approved operator.
     * - `tokenId` must exist.
     *
     * Emits an {Approval} event.
     */
    function approve(address to, uint256 tokenId) external;

    /**
     * @dev Returns the account approved for `tokenId` token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function getApproved(uint256 tokenId) external view returns (address operator);

    /**
     * @dev Approve or remove `operator` as an operator for the caller.
     * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.
     *
     * Requirements:
     *
     * - The `operator` cannot be the caller.
     *
     * Emits an {ApprovalForAll} event.
     */
    function setApprovalForAll(address operator, bool _approved) external;

    /**
     * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.
     *
     * See {setApprovalForAll}
     */
    function isApprovedForAll(address owner, address operator) external view returns (bool);

    /**
     * @dev Safely transfers `tokenId` token from `from` to `to`.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must exist and be owned by `from`.
     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId,
        bytes calldata data
    ) external;
}

// File: @openzeppelin/contracts/token/ERC1155/IERC1155.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC1155/IERC1155.sol)

pragma solidity ^0.8.0;

import "../../utils/introspection/IERC165.sol";

/**
 * @dev Required interface of an ERC1155 compliant contract, as defined in the
 * https://eips.ethereum.org/EIPS/eip-1155[EIP].
 *
 * _Available since v3.1._
 */
interface IERC1155 is IERC165 {
    /**
     * @dev Emitted when `value` tokens of token type `id` are transferred from `from` to `to` by `operator`.
     */
    event TransferSingle(address indexed operator, address indexed from, address indexed to, uint256 id, uint256 value);

    /**
     * @dev Equivalent to multiple {TransferSingle} events, where `operator`, `from` and `to` are the same for all
     * transfers.
     */
    event TransferBatch(
        address indexed operator,
        address indexed from,
        address indexed to,
        uint256[] ids,
        uint256[] values
    );

    /**
     * @dev Emitted when `account` grants or revokes permission to `operator` to transfer their tokens, according to
     * `approved`.
     */
    event ApprovalForAll(address indexed account, address indexed operator, bool approved);

    /**
     * @dev Emitted when the URI for token type `id` changes to `value`, if it is a non-programmatic URI.
     *
     * If an {URI} event was emitted for `id`, the standard
     * https://eips.ethereum.org/EIPS/eip-1155#metadata-extensions[guarantees] that `value` will equal the value
     * returned by {IERC1155MetadataURI-uri}.
     */
    event URI(string value, uint256 indexed id);

    /**
     * @dev Returns the amount of tokens of token type `id` owned by `account`.
     *
     * Requirements:
     *
     * - `account` cannot be the zero address.
     */
    function balanceOf(address account, uint256 id) external view returns (uint256);

    /**
     * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {balanceOf}.
     *
     * Requirements:
     *
     * - `accounts` and `ids` must have the same length.
     */
    function balanceOfBatch(address[] calldata accounts, uint256[] calldata ids)
        external
        view
        returns (uint256[] memory);

    /**
     * @dev Grants or revokes permission to `operator` to transfer the caller's tokens, according to `approved`,
     *
     * Emits an {ApprovalForAll} event.
     *
     * Requirements:
     *
     * - `operator` cannot be the caller.
     */
    function setApprovalForAll(address operator, bool approved) external;

    /**
     * @dev Returns true if `operator` is approved to transfer ``account``'s tokens.
     *
     * See {setApprovalForAll}.
     */
    function isApprovedForAll(address account, address operator) external view returns (bool);

    /**
     * @dev Transfers `amount` tokens of token type `id` from `from` to `to`.
     *
     * Emits a {TransferSingle} event.
     *
     * Requirements:
     *
     * - `to` cannot be the zero address.
     * - If the caller is not `from`, it must be have been approved to spend ``from``'s tokens via {setApprovalForAll}.
     * - `from` must have a balance of tokens of type `id` of at least `amount`.
     * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155Received} and return the
     * acceptance magic value.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 id,
        uint256 amount,
        bytes calldata data
    ) external;

    /**
     * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {safeTransferFrom}.
     *
     * Emits a {TransferBatch} event.
     *
     * Requirements:
     *
     * - `ids` and `amounts` must have the same length.
     * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155BatchReceived} and return the
     * acceptance magic value.
     */
    function safeBatchTransferFrom(
        address from,
        address to,
        uint256[] calldata ids,
        uint256[] calldata amounts,
        bytes calldata data
    ) external;
}

// File: contracts/Adapters/libs/TradeType.sol



pragma solidity ^0.8.4;

    enum TradeType {
        // 0: ETH on mainnet, MATIC on polygon, etc.
        NATIVE,

        // 1: ERC721 items
        ERC721,

        // 2: ERC1155 items
        ERC1155,

        // 3: ERC721 items where a number of tokenIds are supported
        ERC721_WITH_CRITERIA,

        // 4: ERC1155 items where a number of ids are supported
        ERC1155_WITH_CRITERIA,

        // 5: ERC20 items (ERC777 and ERC20 analogues could also technically work)
        ERC20
    }