// File: contracts/MarketPlace.sol



// SPDX-License-Identifier: MIT

pragma solidity ^0.8.9;

import "@openzeppelin/contracts/utils/introspection/IERC165.sol";
import "@openzeppelin/contracts/token/ERC721/IERC721.sol";
import "@openzeppelin/contracts/token/ERC1155/IERC1155.sol";
import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
import "@openzeppelin/contracts/utils/math/SafeMath.sol";
import "@openzeppelin/contracts/utils/Context.sol";
import "@openzeppelin/contracts/utils/Address.sol";
import "@openzeppelin/contracts/security/ReentrancyGuard.sol";
import "@openzeppelin/contracts/access/Ownable.sol";

interface IFomoNFT1155 {
    function creators(uint256) external returns (address);
}

contract MarketPlace is Ownable, ReentrancyGuard {
    using SafeMath for uint256;
    using Address for address payable;
    using SafeERC20 for IERC20;

    /// @notice Events for the contract
    event ItemListed(
        address indexed owner,
        address indexed nft,
        uint256 tokenId,
        uint256 quantity,
        uint256 pricePerItem,
        uint256 startingTime,
        bool isPrivate,
        address allowedAddress
    );
    event ItemSold(
        address seller,
        address buyer,
        address payToken,
        address nft,
        uint256 tokenId,
        uint256 quantity,
        uint256 price,
        bool nftType721
    );
    event ItemUpdated(
        address indexed owner,
        address indexed nft,
        uint256 tokenId,
        uint256 newPrice
    );
    event ItemCanceled(
        address indexed owner,
        address indexed nft,
        uint256 tokenId
    );
    event OfferCreated(
        address indexed creator,
        address indexed nft,
        uint256 tokenId,
        address payToken,
        uint256 quantity,
        uint256 pricePerItem,
        uint256 deadline
    );
    event OfferCanceled(
        address indexed creator,
        address indexed nft,
        uint256 tokenId
    );
    event UpdatePlatformFee(uint256 platformFee);
    event UpdatePlatformFeeRecipient(address payable platformFeeRecipient);

    /// @notice Structure for listed items
    struct Listing {
        IERC20 payToken;
        uint256 quantity;
        uint256 pricePerItem;
        uint256 startingTime;
        address allowedAddress;
    }

    /// @notice Structure for offer
    struct Offer {
        IERC20 payToken;
        uint256 quantity;
        uint256 pricePerItem;
        uint256 deadline;
    }

    bytes4 private constant INTERFACE_ID_ERC721 = 0x80ac58cd;
    bytes4 private constant INTERFACE_ID_ERC1155 = 0xd9b67a26;

    /// @notice NftAddress -> Token ID -> Minter
    mapping(address => mapping(uint256 => address)) public minters;

    /// @notice NftAddress -> Token ID -> Royalty
    mapping(address => mapping(uint256 => uint8)) public royalties;

    /// @notice NftAddress -> Token ID -> Owner -> Listing item
    mapping(address => mapping(uint256 => mapping(address => Listing)))
        public listings;

    /// @notice NftAddress -> Token ID -> Offerer -> Offer
    mapping(address => mapping(uint256 => mapping(address => Offer)))
        public offers;

    /// @notice Platform fee

    uint256 public platformFee       = 250;
    uint256 public avenueTreasuryFee = 125;  // 1.25%
    uint256 public rewardsWalletFee  = 100;  // 1.00%
    uint256 public paybackBuyerFee   = 10;   // 0.1 %
    uint256 public paybackSellerFee  = 15;   // 0.15%

//     2.5% Fee is taken on buying NFT:

// 50% To Avenue Treasury (1.25%)

// 1% is going to the Rewards Wallet 

// 0.1% Of Fee paid back to buyer.

// 0.15% of Fee Paid back to seller.



    /// @notice Listing fee
    uint256 public listingFee;

    /// @notice Platform fee receipient
    address payable public feeReceipient;
    address payable public rewardsWallet;

    /// @notice Fomo721 contract
    address public fomo721;

    /// @notice listingFeeToken address
    address public listingFeeToken;

    uint8 public constant MAX_ROYALTY_FEE = 10;

    /// @notice Contract constructor
    constructor (
        address _listingFeeToken,
        uint256 _listingFee,
        address payable _feeRecipient,
        address payable _rewardsWallet
        // uint256 _platformFee
    )  {
      //  platformFee = _platformFee;
      
        listingFeeToken = _listingFeeToken;
        listingFee = _listingFee;

        feeReceipient = _feeRecipient;
        rewardsWallet = _rewardsWallet;

    }

    /// @notice Method for listing NFT
    /// @param _nftAddress Address of NFT contract
    /// @param _tokenId Token ID of NFT
    /// @param _quantity token amount to list (needed for ERC-1155 NFTs, set as 1 for ERC-721)
    /// @param _pricePerItem sale price for each iteam
    /// @param _startingTime scheduling for a future sale
    /// @param _allowedAddress optional param for private sale

    function listItem(
        address _nftAddress,
        uint256 _tokenId,
        IERC20 _payToken,
        uint256 _quantity,
        uint256 _pricePerItem,
        uint256 _startingTime,
        address _allowedAddress
    ) external {
        if (_supportERC721(_nftAddress)) {
            IERC721 nft = IERC721(_nftAddress);
            require(
                nft.ownerOf(_tokenId) == _msgSender(),
                "Must be owner of NFT."
            );
            require(
                nft.isApprovedForAll(_msgSender(), address(this)),
                "Must be approved before list."
            );
        } else if (_supportERC1155(_nftAddress)) {
            IERC1155 nft = IERC1155(_nftAddress);
            require(
                nft.balanceOf(_msgSender(), _tokenId) >= _quantity,
                "Must hold enough NFTs."
            );
            require(
                nft.isApprovedForAll(_msgSender(), address(this)),
                "Must be approved before list."
            );
        } else {
            revert("Invalid NFT address.");
        }

        // Send ListingFee to receipient address
        IERC20(listingFeeToken).transferFrom(
            _msgSender(),
            feeReceipient,
            listingFee
        );

        listings[_nftAddress][_tokenId][_msgSender()] = Listing(
            _payToken,
            _quantity,
            _pricePerItem,
            _getNow(),
            _allowedAddress
        );

        emit ItemListed(
            _msgSender(),
            _nftAddress,
            _tokenId,
            _quantity,
            _pricePerItem,
            _startingTime,
            _allowedAddress == address(0x0),
            _allowedAddress
        );
    }

    /// @notice Method for canceling listed NFT
    function cancelListing(address _nftAddress, uint256 _tokenId)
        external
        nonReentrant
    {
        require(
            listings[_nftAddress][_tokenId][_msgSender()].quantity > 0,
            "Not listed item."
        );
        _cancelListing(_nftAddress, _tokenId, _msgSender());
    }

    /// @notice Method for canceling listed NFT
    function getListing(address _nftAddress, uint256 _tokenId, address _nftOwner)
        public
        view returns (uint256)
    {
        return listings[_nftAddress][_tokenId][_nftOwner].quantity;
    }

    /// @notice Method for updating listed NFT
    /// @param _nftAddress Address of NFT contract
    /// @param _tokenId Token ID of NFT
    /// @param _newPrice New sale price for each iteam
    function updateListing(
        address _nftAddress,
        uint256 _tokenId,
        uint256 _newPrice
    ) external nonReentrant {
        Listing storage listedItem = listings[_nftAddress][_tokenId][
            _msgSender()
        ];
        require(listedItem.quantity > 0, "Not listed item.");
        if (_supportERC721(_nftAddress)) {
            IERC721 nft = IERC721(_nftAddress);
            require(
                nft.ownerOf(_tokenId) == _msgSender(),
                "Not owning the item."
            );
        } else if (_supportERC1155(_nftAddress)) {
            IERC1155 nft = IERC1155(_nftAddress);
            require(
                nft.balanceOf(_msgSender(), _tokenId) >= listedItem.quantity,
                "Not owning the item."
            );
        } else {
            revert("Invalid NFT address.");
        }

        listedItem.pricePerItem = _newPrice;
        emit ItemUpdated(_msgSender(), _nftAddress, _tokenId, _newPrice);
    }

    /// @notice Method for buying listed NFT
    /// @param _nftAddress NFT contract address
    /// @param _tokenId TokenId
    function buyItem(
        address _nftAddress,
        uint256 _tokenId,
        uint256 _tokenQty,
        uint256 _tokenAmount,
        address payable _owner
    ) external payable nonReentrant {

        bool nftType721; 

        Listing memory listedItem = listings[_nftAddress][_tokenId][_owner];
        require(listedItem.quantity > 0, "Not listed item.");
        if (_supportERC721(_nftAddress)) {
            IERC721 nft = IERC721(_nftAddress);
            nftType721 = true;
            require(nft.ownerOf(_tokenId) == _owner, "Not owning the item.");
        } else if (_supportERC1155(_nftAddress)) {
            IERC1155 nft = IERC1155(_nftAddress);
            nftType721 = false;
            require(
                nft.balanceOf(_owner, _tokenId) >= listedItem.quantity,
                "Not owning the item."
            );
        } else {
            revert("Invalid NFT address.");
        }
        require(
            _getNow() >= listedItem.startingTime,
            "Item is not buyable yet."
        );
        require(
            // _tokenAmount >= listedItem.pricePerItem.mul(listedItem.quantity),
             _tokenAmount >= listedItem.pricePerItem.mul(_tokenQty),
            "Not enough amount to buy item."
        );
        if (listedItem.allowedAddress != address(0)) {
            require(
                listedItem.allowedAddress == _msgSender(),
                "You are not eligable to buy item."
            );
        }

        uint256 feeAmount = _tokenAmount.mul(platformFee).div(10000);


        // listedItem.payToken.safeTransferFrom(
        //     _msgSender(),
        //     feeReceipient,
        //     feeAmount
        // );
        
     

        listedItem.payToken.safeTransferFrom(
            _msgSender(),
            feeReceipient,
            _tokenAmount.mul(avenueTreasuryFee).div(10000)
        );

        // uint256 rewardsWalletAmount = _tokenAmount.mul(rewardsWalletFee).div(1000);
      
        listedItem.payToken.safeTransferFrom(
            _msgSender(),
            rewardsWallet,
            _tokenAmount.mul(rewardsWalletFee).div(10000)
        );

     // uint256 paybackBuyerAmount = _tokenAmount.mul(paybackBuyerFee).div(1000);
      listedItem.payToken.safeTransferFrom(
            _msgSender(),
            _msgSender(),
            _tokenAmount.mul(paybackBuyerFee).div(10000)
        );

       // uint256 paybackSellerAmount = _tokenAmount.mul(paybackSellerFee).div(1000);
        listedItem.payToken.safeTransferFrom(
            _msgSender(),
            _owner,
            _tokenAmount.mul(paybackSellerFee).div(10000)
        );

        // (bool feeTransferSuccess, ) = feeReceipient.call{value: feeAmount}("");
        // require(feeTransferSuccess, "FomoMarketplace: Fee transfer failed");

                if (
                    minters[_nftAddress][_tokenId] != address(0) &&
                    royalties[_nftAddress][_tokenId] != uint8(0)
                ) {
                    uint256 royaltyFee = _tokenAmount
                        .sub(feeAmount)
                        .mul(royalties[_nftAddress][_tokenId])
                        .div(100);

                    listedItem.payToken.safeTransferFrom(
                        _msgSender(),
                        minters[_nftAddress][_tokenId],
                        royaltyFee
                    );
                    
                    feeAmount = feeAmount.add(royaltyFee);

                    // (bool royaltyTransferSuccess, ) = payable(
                    //     minters[_nftAddress][_tokenId]
                    // ).call{value: royaltyFee}("");
                    // require(
                    //     royaltyTransferSuccess,
                    //     "FomoMarketplace: Royalty fee transfer failed"
                    // );
                }

        listedItem.payToken.safeTransferFrom(
            _msgSender(),
            _owner,
            _tokenAmount.sub(feeAmount)
        );

        // (bool ownerTransferSuccess, ) = _owner.call{
        //     value: msg.value.sub(feeAmount)
        // }("");
        // require(ownerTransferSuccess, "FomoMarketplace: Owner transfer failed");

        // Transfer NFT to buyer
        if (_supportERC721(_nftAddress)) {
            IERC721(_nftAddress).safeTransferFrom(
                _owner,
                _msgSender(),
                _tokenId
            );
        } else {
            IERC1155(_nftAddress).safeTransferFrom(
                _owner,
                _msgSender(),
                _tokenId,
                // listedItem.quantity,
                _tokenQty,
                bytes("")
            );
        }

        emit ItemSold(
            _owner,
            _msgSender(),
            address(listedItem.payToken),
            _nftAddress,
            _tokenId,
            // listedItem.quantity,
            _tokenQty,
            // _tokenAmount.div(listedItem.quantity)
            _tokenAmount.div(_tokenQty),
            nftType721
        );

        listings[_nftAddress][_tokenId][_owner].quantity = listings[_nftAddress][_tokenId][_owner].quantity -  _tokenQty; 
        // delete (listings[_nftAddress][_tokenId][_owner]);
            // _tokenQty,
    }

    /// @notice Method for canceling listed NFT
    function getOffer(address _nftAddress, uint256 _tokenId, address _nftOwner)
        public
        view returns (uint256)
    {
        return offers[_nftAddress][_tokenId][_nftOwner].quantity;
    }


    /// @notice Method for offering item
    /// @param _nftAddress NFT contract address
    /// @param _tokenId TokenId
    /// @param _payToken Paying token
    /// @param _quantity Quantity of items
    /// @param _pricePerItem Price per item
    /// @param _deadline Offer expiration

    function createOffer(
        address _nftAddress,
        uint256 _tokenId,
        IERC20 _payToken,
        uint256 _quantity,
        uint256 _pricePerItem,
        uint256 _deadline
    ) external {
        require(
            _supportERC721(_nftAddress) || _supportERC1155(_nftAddress),
            "Invalid NFT address."
        );
        require(_deadline > _getNow(), "Invalid expiration");

        offers[_nftAddress][_tokenId][_msgSender()] = Offer(
            _payToken,
            _quantity,
            _pricePerItem,
            _deadline
        );

        emit OfferCreated(
            _msgSender(),
            _nftAddress,
            _tokenId,
            address(_payToken),
            _quantity,
            _pricePerItem,
            _deadline
        );
    }

    /// @notice Method for canceling the offer
    /// @param _nftAddress NFT contract address
    /// @param _tokenId TokenId

    function cancelOffer(address _nftAddress, uint256 _tokenId) external {
        delete (offers[_nftAddress][_tokenId][_msgSender()]);
        emit OfferCanceled(_msgSender(), _nftAddress, _tokenId);
    }

    /// @notice Method for accepting the offer
    /// @param _nftAddress NFT contract address
    /// @param _tokenId TokenId
    /// @param _creator Offer creator address

    function acceptOffer(
        address _nftAddress,
        uint256 _tokenId,
        address _creator
    ) external nonReentrant {
        Offer memory offer = offers[_nftAddress][_tokenId][_creator];
        bool nftType721; 

        if (_supportERC721(_nftAddress)) {
            IERC721 nft = IERC721(_nftAddress);
            nftType721 = true;
            require(
                nft.ownerOf(_tokenId) == _msgSender(),
                "Not owning the item."
            );
        } else if (_supportERC1155(_nftAddress)) {
            IERC1155 nft = IERC1155(_nftAddress);
            nftType721 = false;
            require(
                nft.balanceOf(_msgSender(), _tokenId) >= offer.quantity,
                "Not owning the item."
            );
        } else {
            revert("Invalid NFT address.");
        }
        require(
            offer.pricePerItem > 0 && offer.quantity > 0,
            "Offer doesn't exist."
        );

        uint256 price = offer.pricePerItem.mul(offer.quantity);
        uint256 feeAmount = price.mul(platformFee).div(1e3);
        uint256 royaltyFee;

        if (
            _nftAddress == fomo721 &&
            minters[_nftAddress][_tokenId] != address(0) &&
            royalties[_nftAddress][_tokenId] != uint8(0)
        ) {
            royaltyFee = price
                .sub(feeAmount)
                .mul(royalties[_nftAddress][_tokenId])
                .div(100);

            offer.payToken.safeTransferFrom(
                _creator,
                minters[_nftAddress][_tokenId],
                royaltyFee
            );

            feeAmount = feeAmount.add(royaltyFee);
        }

        offer.payToken.safeTransferFrom(_creator, feeReceipient, feeAmount);
        offer.payToken.safeTransferFrom(
            _creator,
            _msgSender(),
            price.sub(feeAmount)
        );

        // Transfer NFT to buyer
        if (_supportERC721(_nftAddress)) {
            IERC721(_nftAddress).safeTransferFrom(
                _msgSender(),
                _creator,
                _tokenId
            );
        } else {
            IERC1155(_nftAddress).safeTransferFrom(
                _msgSender(),
                _creator,
                _tokenId,
                offer.quantity,
                bytes("")
            );
        }
        delete (listings[_nftAddress][_tokenId][_msgSender()]);
        delete (offers[_nftAddress][_tokenId][_creator]);

        emit ItemSold(
            _msgSender(),
            _creator,
            address(offer.payToken),
            _nftAddress,
            _tokenId,
            offer.quantity,
            offer.pricePerItem,
            nftType721
        );
        emit OfferCanceled(_creator, _nftAddress, _tokenId);
    }

    /// @notice Method for setting royalty
    /// @param _tokenId TokenId
    /// @param _royalty Royalty
    function registerRoyalty(
        address _nftAddress,
        uint256 _tokenId,
        uint8 _royalty
    ) external {
        require(_royalty <= MAX_ROYALTY_FEE, "invalid royalty fee");
        if (_supportERC721(_nftAddress)) {
            require(
                IERC721(fomo721).ownerOf(_tokenId) == _msgSender(),
                "Not owning the item."
            );
        } else if (_supportERC1155(_nftAddress)) {
            require(
                IFomoNFT1155(_nftAddress).creators(_tokenId) == _msgSender(),
                "Not owning the item."
            );
        } else {
            revert("Invalid NFT address.");
        }

        require(
            minters[_nftAddress][_tokenId] == address(0),
            "Royalty already set"
        );
        minters[_nftAddress][_tokenId] = _msgSender();
        royalties[_nftAddress][_tokenId] = _royalty;
    }

    /**
     @notice Method for updating platform fee
     @dev Only admin
     @param _platformFee uint256 the platform fee to set
     */
    function updatePlatformFee(uint256 _platformFee) external onlyOwner {
        platformFee = _platformFee;
        emit UpdatePlatformFee(_platformFee);
    }

    /**
     @notice Update Fomo721 contract
     @dev Only admin
     */
    function updateFomo721(address _fomo721) external onlyOwner {
        require(
            IERC165(_fomo721).supportsInterface(INTERFACE_ID_ERC721),
            "Not ERC721"
        );
        fomo721 = _fomo721;
    }

    /**
     @notice Update ListingFee Token
     @dev Only admin
     */
    function updateListingFeeToken(address _listingFeeToken)
        external
        onlyOwner
    {
        require(_listingFeeToken != address(0), "Invalid Address");
        listingFeeToken = _listingFeeToken;
    }

    /**
     @notice Update ListingFee
     @dev Only admin
     */
    function updateListingFee(uint256 _listingFee) external onlyOwner {
        listingFee = _listingFee;
    }

    /**
     @notice Method for updating platform fee address
     @dev Only admin
     @param _platformFeeRecipient payable address the address to sends the funds to
     */
    function updatePlatformFeeRecipient(address payable _platformFeeRecipient)
        external
        onlyOwner
    {
        feeReceipient = _platformFeeRecipient;
        emit UpdatePlatformFeeRecipient(_platformFeeRecipient);
    }

    ////////////////////////////
    /// Internal and Private ///
    ////////////////////////////

    function _getNow() internal view virtual returns (uint256) {
        return block.timestamp;
    }

    function _cancelListing(
        address _nftAddress,
        uint256 _tokenId,
        address _owner
    ) private {
        Listing memory listedItem = listings[_nftAddress][_tokenId][_owner];
        if (_supportERC721(_nftAddress)) {
            IERC721 nft = IERC721(_nftAddress);
            require(nft.ownerOf(_tokenId) == _owner, "Not owning the item.");
        } else if (_supportERC1155(_nftAddress)) {
            IERC1155 nft = IERC1155(_nftAddress);
            require(
                nft.balanceOf(_msgSender(), _tokenId) >= listedItem.quantity,
                "Not owning the item."
            );
        } else {
            revert("Invalid NFT address.");
        }

        delete (listings[_nftAddress][_tokenId][_owner]);
        emit ItemCanceled(_owner, _nftAddress, _tokenId);
    }

    function _supportERC721(address _nftAddress) private view returns (bool) {
        return IERC165(_nftAddress).supportsInterface(INTERFACE_ID_ERC721);
    }

    function _supportERC1155(address _nftAddress) private view returns (bool) {
        return IERC165(_nftAddress).supportsInterface(INTERFACE_ID_ERC1155);
    }
}
// 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 (last updated v4.7.0) (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`.
     *
     * 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;

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

    /**
     * @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);
}

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



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (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 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: @openzeppelin/contracts/token/ERC20/IERC20.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.0;

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

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

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

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

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

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

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

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

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



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (token/ERC20/utils/SafeERC20.sol)

pragma solidity ^0.8.0;

import "../IERC20.sol";
import "../extensions/draft-IERC20Permit.sol";
import "../../../utils/Address.sol";

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

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

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

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

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

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

    function safePermit(
        IERC20Permit token,
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) internal {
        uint256 nonceBefore = token.nonces(owner);
        token.permit(owner, spender, value, deadline, v, r, s);
        uint256 nonceAfter = token.nonces(owner);
        require(nonceAfter == nonceBefore + 1, "SafeERC20: permit did not succeed");
    }

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

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

// File: @openzeppelin/contracts/utils/math/SafeMath.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (utils/math/SafeMath.sol)

pragma solidity ^0.8.0;

// CAUTION
// This version of SafeMath should only be used with Solidity 0.8 or later,
// because it relies on the compiler's built in overflow checks.

/**
 * @dev Wrappers over Solidity's arithmetic operations.
 *
 * NOTE: `SafeMath` is generally not needed starting with Solidity 0.8, since the compiler
 * now has built in overflow checking.
 */
library SafeMath {
    /**
     * @dev Returns the addition of two unsigned integers, with an overflow flag.
     *
     * _Available since v3.4._
     */
    function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            uint256 c = a + b;
            if (c < a) return (false, 0);
            return (true, c);
        }
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, with an overflow flag.
     *
     * _Available since v3.4._
     */
    function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            if (b > a) return (false, 0);
            return (true, a - b);
        }
    }

    /**
     * @dev Returns the multiplication of two unsigned integers, with an overflow flag.
     *
     * _Available since v3.4._
     */
    function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            // Gas optimization: this is cheaper than requiring 'a' not being zero, but the
            // benefit is lost if 'b' is also tested.
            // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
            if (a == 0) return (true, 0);
            uint256 c = a * b;
            if (c / a != b) return (false, 0);
            return (true, c);
        }
    }

    /**
     * @dev Returns the division of two unsigned integers, with a division by zero flag.
     *
     * _Available since v3.4._
     */
    function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            if (b == 0) return (false, 0);
            return (true, a / b);
        }
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag.
     *
     * _Available since v3.4._
     */
    function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            if (b == 0) return (false, 0);
            return (true, a % b);
        }
    }

    /**
     * @dev Returns the addition of two unsigned integers, reverting on
     * overflow.
     *
     * Counterpart to Solidity's `+` operator.
     *
     * Requirements:
     *
     * - Addition cannot overflow.
     */
    function add(uint256 a, uint256 b) internal pure returns (uint256) {
        return a + b;
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting on
     * overflow (when the result is negative).
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     *
     * - Subtraction cannot overflow.
     */
    function sub(uint256 a, uint256 b) internal pure returns (uint256) {
        return a - b;
    }

    /**
     * @dev Returns the multiplication of two unsigned integers, reverting on
     * overflow.
     *
     * Counterpart to Solidity's `*` operator.
     *
     * Requirements:
     *
     * - Multiplication cannot overflow.
     */
    function mul(uint256 a, uint256 b) internal pure returns (uint256) {
        return a * b;
    }

    /**
     * @dev Returns the integer division of two unsigned integers, reverting on
     * division by zero. The result is rounded towards zero.
     *
     * Counterpart to Solidity's `/` operator.
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function div(uint256 a, uint256 b) internal pure returns (uint256) {
        return a / b;
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * reverting when dividing by zero.
     *
     * Counterpart to Solidity's `%` operator. This function uses a `revert`
     * opcode (which leaves remaining gas untouched) while Solidity uses an
     * invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function mod(uint256 a, uint256 b) internal pure returns (uint256) {
        return a % b;
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting with custom message on
     * overflow (when the result is negative).
     *
     * CAUTION: This function is deprecated because it requires allocating memory for the error
     * message unnecessarily. For custom revert reasons use {trySub}.
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     *
     * - Subtraction cannot overflow.
     */
    function sub(
        uint256 a,
        uint256 b,
        string memory errorMessage
    ) internal pure returns (uint256) {
        unchecked {
            require(b <= a, errorMessage);
            return a - b;
        }
    }

    /**
     * @dev Returns the integer division of two unsigned integers, reverting with custom message on
     * division by zero. The result is rounded towards zero.
     *
     * Counterpart to Solidity's `/` operator. Note: this function uses a
     * `revert` opcode (which leaves remaining gas untouched) while Solidity
     * uses an invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function div(
        uint256 a,
        uint256 b,
        string memory errorMessage
    ) internal pure returns (uint256) {
        unchecked {
            require(b > 0, errorMessage);
            return a / b;
        }
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * reverting with custom message when dividing by zero.
     *
     * CAUTION: This function is deprecated because it requires allocating memory for the error
     * message unnecessarily. For custom revert reasons use {tryMod}.
     *
     * Counterpart to Solidity's `%` operator. This function uses a `revert`
     * opcode (which leaves remaining gas untouched) while Solidity uses an
     * invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function mod(
        uint256 a,
        uint256 b,
        string memory errorMessage
    ) internal pure returns (uint256) {
        unchecked {
            require(b > 0, errorMessage);
            return a % b;
        }
    }
}

// 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/utils/Address.sol



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

pragma solidity ^0.8.1;

/**
 * @dev Collection of functions related to the address type
 */
library Address {
    /**
     * @dev Returns true if `account` is a contract.
     *
     * [IMPORTANT]
     * ====
     * It is unsafe to assume that an address for which this function returns
     * false is an externally-owned account (EOA) and not a contract.
     *
     * Among others, `isContract` will return false for the following
     * types of addresses:
     *
     *  - an externally-owned account
     *  - a contract in construction
     *  - an address where a contract will be created
     *  - an address where a contract lived, but was destroyed
     * ====
     *
     * [IMPORTANT]
     * ====
     * You shouldn't rely on `isContract` to protect against flash loan attacks!
     *
     * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
     * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
     * constructor.
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // This method relies on extcodesize/address.code.length, which returns 0
        // for contracts in construction, since the code is only stored at the end
        // of the constructor execution.

        return account.code.length > 0;
    }

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

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

    /**
     * @dev Performs a Solidity function call using a low level `call`. A
     * plain `call` is an unsafe replacement for a function call: use this
     * function instead.
     *
     * If `target` reverts with a revert reason, it is bubbled up by this
     * function (like regular Solidity function calls).
     *
     * Returns the raw returned data. To convert to the expected return value,
     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
     *
     * Requirements:
     *
     * - `target` must be a contract.
     * - calling `target` with `data` must not revert.
     *
     * _Available since v3.1._
     */
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
        return 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
                /// @solidity memory-safe-assembly
                assembly {
                    let returndata_size := mload(returndata)
                    revert(add(32, returndata), returndata_size)
                }
            } else {
                revert(errorMessage);
            }
        }
    }
}

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



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (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 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/token/ERC20/extensions/draft-IERC20Permit.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/draft-IERC20Permit.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in
 * https://eips.ethereum.org/EIPS/eip-2612[EIP-2612].
 *
 * Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by
 * presenting a message signed by the account. By not relying on {IERC20-approve}, the token holder account doesn't
 * need to send a transaction, and thus is not required to hold Ether at all.
 */
interface IERC20Permit {
    /**
     * @dev Sets `value` as the allowance of `spender` over ``owner``'s tokens,
     * given ``owner``'s signed approval.
     *
     * IMPORTANT: The same issues {IERC20-approve} has related to transaction
     * ordering also apply here.
     *
     * Emits an {Approval} event.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     * - `deadline` must be a timestamp in the future.
     * - `v`, `r` and `s` must be a valid `secp256k1` signature from `owner`
     * over the EIP712-formatted function arguments.
     * - the signature must use ``owner``'s current nonce (see {nonces}).
     *
     * For more information on the signature format, see the
     * https://eips.ethereum.org/EIPS/eip-2612#specification[relevant EIP
     * section].
     */
    function permit(
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external;

    /**
     * @dev Returns the current nonce for `owner`. This value must be
     * included whenever a signature is generated for {permit}.
     *
     * Every successful call to {permit} increases ``owner``'s nonce by one. This
     * prevents a signature from being used multiple times.
     */
    function nonces(address owner) external view returns (uint256);

    /**
     * @dev Returns the domain separator used in the encoding of the signature for {permit}, as defined by {EIP712}.
     */
    // solhint-disable-next-line func-name-mixedcase
    function DOMAIN_SEPARATOR() external view returns (bytes32);
}