false
false
0

Contract Address Details

0x08E482A860799890639711446cf284918f210315

Contract Name
Marketplace
Creator
0xb80042–1c51ab at 0xfa8669–f71ca4
Balance
Loading balance...
Tokens
Fetching tokens...
Transactions
0 Transactions
Transfers
0 Transfers
Gas Used
Fetching gas used...
Last Balance Update
9571042
Warning! Contract bytecode has been changed and doesn't match the verified one. Therefore, interaction with this smart contract may be risky.
Contract name:
Marketplace




Optimization enabled
true
Compiler version
v0.8.9+commit.e5eed63a




Optimization runs
200
EVM Version
default




Verified at
2024-04-28T07:47:53.062914Z

Contract source code

// Sources flattened with hardhat v2.10.1 https://hardhat.org

// File openzeppelin-contracts-upgradeable/utils/CountersUpgradeable.sol


// OpenZeppelin Contracts v4.4.0 (utils/Counters.sol)

pragma solidity ^0.8.0;

/**
 * @title Counters
 * @author Matt Condon (@shrugs)
 * @dev Provides counters that can only be incremented, decremented or reset. This can be used e.g. to track the number
 * of elements in a mapping, issuing ERC721 ids, or counting request ids.
 *
 * Include with `using Counters for Counters.Counter;`
 */
library CountersUpgradeable {
    struct Counter {
        // This variable should never be directly accessed by users of the library: interactions must be restricted to
        // the library's function. As of Solidity v0.5.2, this cannot be enforced, though there is a proposal to add
        // this feature: see https://github.com/ethereum/solidity/issues/4637
        uint256 _value; // default: 0
    }

    function current(Counter storage counter) internal view returns (uint256) {
        return counter._value;
    }

    function increment(Counter storage counter) internal {
        unchecked {
            counter._value += 1;
        }
    }

    function decrement(Counter storage counter) internal {
        uint256 value = counter._value;
        require(value > 0, "Counter: decrement overflow");
        unchecked {
            counter._value = value - 1;
        }
    }

    function reset(Counter storage counter) internal {
        counter._value = 0;
    }
}


// File openzeppelin-contracts-upgradeable/utils/introspection/IERC165Upgradeable.sol


// OpenZeppelin Contracts v4.4.0 (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 IERC165Upgradeable {
    /**
     * @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-upgradeable/token/ERC721/IERC721Upgradeable.sol


// OpenZeppelin Contracts v4.4.0 (token/ERC721/IERC721.sol)

pragma solidity ^0.8.0;

/**
 * @dev Required interface of an ERC721 compliant contract.
 */
interface IERC721Upgradeable is IERC165Upgradeable {
    /**
     * @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-upgradeable/token/ERC721/IERC721ReceiverUpgradeable.sol


// OpenZeppelin Contracts v4.4.0 (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 IERC721ReceiverUpgradeable {
    /**
     * @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-upgradeable/token/ERC721/extensions/IERC721MetadataUpgradeable.sol


// OpenZeppelin Contracts v4.4.0 (token/ERC721/extensions/IERC721Metadata.sol)

pragma solidity ^0.8.0;

/**
 * @title ERC-721 Non-Fungible Token Standard, optional metadata extension
 * @dev See https://eips.ethereum.org/EIPS/eip-721
 */
interface IERC721MetadataUpgradeable is IERC721Upgradeable {
    /**
     * @dev Returns the token collection name.
     */
    function name() external view returns (string memory);

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

    /**
     * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token.
     */
    function tokenURI(uint256 tokenId) external view returns (string memory);
}


// File openzeppelin-contracts-upgradeable/utils/AddressUpgradeable.sol


// OpenZeppelin Contracts v4.4.0 (utils/Address.sol)

pragma solidity ^0.8.0;

/**
 * @dev Collection of functions related to the address type
 */
library AddressUpgradeable {
    /**
     * @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 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-upgradeable/proxy/utils/Initializable.sol


// OpenZeppelin Contracts v4.4.0 (proxy/utils/Initializable.sol)

pragma solidity ^0.8.0;

/**
 * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed
 * behind a proxy. Since a proxied contract can't have a constructor, it's common to move constructor logic to an
 * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer
 * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.
 *
 * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as
 * possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}.
 *
 * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure
 * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.
 *
 * [CAUTION]
 * ====
 * Avoid leaving a contract uninitialized.
 *
 * An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation
 * contract, which may impact the proxy. To initialize the implementation contract, you can either invoke the
 * initializer manually, or you can include a constructor to automatically mark it as initialized when it is deployed:
 *
 * [.hljs-theme-light.nopadding]
 * ```
 * /// @custom:oz-upgrades-unsafe-allow constructor
 * constructor() initializer {}
 * ```
 * ====
 */
abstract contract Initializable {
    /**
     * @dev Indicates that the contract has been initialized.
     */
    bool private _initialized;

    /**
     * @dev Indicates that the contract is in the process of being initialized.
     */
    bool private _initializing;

    /**
     * @dev Modifier to protect an initializer function from being invoked twice.
     */
    modifier initializer() {
        require(_initializing || !_initialized, "Initializable: contract is already initialized");

        bool isTopLevelCall = !_initializing;
        if (isTopLevelCall) {
            _initializing = true;
            _initialized = true;
        }

        _;

        if (isTopLevelCall) {
            _initializing = false;
        }
    }
}


// File openzeppelin-contracts-upgradeable/utils/ContextUpgradeable.sol


// OpenZeppelin Contracts v4.4.0 (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 ContextUpgradeable is Initializable {
    function __Context_init() internal initializer {
        __Context_init_unchained();
    }

    function __Context_init_unchained() internal initializer {
    }
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes calldata) {
        return msg.data;
    }
    uint256[50] private __gap;
}


// File openzeppelin-contracts-upgradeable/utils/StringsUpgradeable.sol


// OpenZeppelin Contracts v4.4.0 (utils/Strings.sol)

pragma solidity ^0.8.0;

/**
 * @dev String operations.
 */
library StringsUpgradeable {
    bytes16 private constant _HEX_SYMBOLS = "0123456789abcdef";

    /**
     * @dev Converts a `uint256` to its ASCII `string` decimal representation.
     */
    function toString(uint256 value) internal pure returns (string memory) {
        // Inspired by OraclizeAPI's implementation - MIT licence
        // https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol

        if (value == 0) {
            return "0";
        }
        uint256 temp = value;
        uint256 digits;
        while (temp != 0) {
            digits++;
            temp /= 10;
        }
        bytes memory buffer = new bytes(digits);
        while (value != 0) {
            digits -= 1;
            buffer[digits] = bytes1(uint8(48 + uint256(value % 10)));
            value /= 10;
        }
        return string(buffer);
    }

    /**
     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
     */
    function toHexString(uint256 value) internal pure returns (string memory) {
        if (value == 0) {
            return "0x00";
        }
        uint256 temp = value;
        uint256 length = 0;
        while (temp != 0) {
            length++;
            temp >>= 8;
        }
        return toHexString(value, length);
    }

    /**
     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.
     */
    function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {
        bytes memory buffer = new bytes(2 * length + 2);
        buffer[0] = "0";
        buffer[1] = "x";
        for (uint256 i = 2 * length + 1; i > 1; --i) {
            buffer[i] = _HEX_SYMBOLS[value & 0xf];
            value >>= 4;
        }
        require(value == 0, "Strings: hex length insufficient");
        return string(buffer);
    }
}


// File openzeppelin-contracts-upgradeable/utils/introspection/ERC165Upgradeable.sol


// OpenZeppelin Contracts v4.4.0 (utils/introspection/ERC165.sol)

pragma solidity ^0.8.0;


/**
 * @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 ERC165Upgradeable is Initializable, IERC165Upgradeable {
    function __ERC165_init() internal initializer {
        __ERC165_init_unchained();
    }

    function __ERC165_init_unchained() internal initializer {
    }
    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
        return interfaceId == type(IERC165Upgradeable).interfaceId;
    }
    uint256[50] private __gap;
}


// File openzeppelin-contracts-upgradeable/token/ERC721/ERC721Upgradeable.sol


// OpenZeppelin Contracts v4.4.0 (token/ERC721/ERC721.sol)

pragma solidity ^0.8.0;








/**
 * @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including
 * the Metadata extension, but not including the Enumerable extension, which is available separately as
 * {ERC721Enumerable}.
 */
contract ERC721Upgradeable is Initializable, ContextUpgradeable, ERC165Upgradeable, IERC721Upgradeable, IERC721MetadataUpgradeable {
    using AddressUpgradeable for address;
    using StringsUpgradeable for uint256;

    // Token name
    string private _name;

    // Token symbol
    string private _symbol;

    // Mapping from token ID to owner address
    mapping(uint256 => address) private _owners;

    // Mapping owner address to token count
    mapping(address => uint256) private _balances;

    // Mapping from token ID to approved address
    mapping(uint256 => address) private _tokenApprovals;

    // Mapping from owner to operator approvals
    mapping(address => mapping(address => bool)) private _operatorApprovals;

    /**
     * @dev Initializes the contract by setting a `name` and a `symbol` to the token collection.
     */
    function __ERC721_init(string memory name_, string memory symbol_) internal initializer {
        __Context_init_unchained();
        __ERC165_init_unchained();
        __ERC721_init_unchained(name_, symbol_);
    }

    function __ERC721_init_unchained(string memory name_, string memory symbol_) internal initializer {
        _name = name_;
        _symbol = symbol_;
    }

    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165Upgradeable, IERC165Upgradeable) returns (bool) {
        return
            interfaceId == type(IERC721Upgradeable).interfaceId ||
            interfaceId == type(IERC721MetadataUpgradeable).interfaceId ||
            super.supportsInterface(interfaceId);
    }

    /**
     * @dev See {IERC721-balanceOf}.
     */
    function balanceOf(address owner) public view virtual override returns (uint256) {
        require(owner != address(0), "ERC721: balance query for the zero address");
        return _balances[owner];
    }

    /**
     * @dev See {IERC721-ownerOf}.
     */
    function ownerOf(uint256 tokenId) public view virtual override returns (address) {
        address owner = _owners[tokenId];
        require(owner != address(0), "ERC721: owner query for nonexistent token");
        return owner;
    }

    /**
     * @dev See {IERC721Metadata-name}.
     */
    function name() public view virtual override returns (string memory) {
        return _name;
    }

    /**
     * @dev See {IERC721Metadata-symbol}.
     */
    function symbol() public view virtual override returns (string memory) {
        return _symbol;
    }

    /**
     * @dev See {IERC721Metadata-tokenURI}.
     */
    function tokenURI(uint256 tokenId) public view virtual override returns (string memory) {
        require(_exists(tokenId), "ERC721Metadata: URI query for nonexistent token");

        string memory baseURI = _baseURI();
        return bytes(baseURI).length > 0 ? string(abi.encodePacked(baseURI, tokenId.toString())) : "";
    }

    /**
     * @dev Base URI for computing {tokenURI}. If set, the resulting URI for each
     * token will be the concatenation of the `baseURI` and the `tokenId`. Empty
     * by default, can be overriden in child contracts.
     */
    function _baseURI() internal view virtual returns (string memory) {
        return "";
    }

    /**
     * @dev See {IERC721-approve}.
     */
    function approve(address to, uint256 tokenId) public virtual override {
        address owner = ERC721Upgradeable.ownerOf(tokenId);
        require(to != owner, "ERC721: approval to current owner");

        require(
            _msgSender() == owner || isApprovedForAll(owner, _msgSender()),
            "ERC721: approve caller is not owner nor approved for all"
        );

        _approve(to, tokenId);
    }

    /**
     * @dev See {IERC721-getApproved}.
     */
    function getApproved(uint256 tokenId) public view virtual override returns (address) {
        require(_exists(tokenId), "ERC721: approved query for nonexistent token");

        return _tokenApprovals[tokenId];
    }

    /**
     * @dev See {IERC721-setApprovalForAll}.
     */
    function setApprovalForAll(address operator, bool approved) public virtual override {
        _setApprovalForAll(_msgSender(), operator, approved);
    }

    /**
     * @dev See {IERC721-isApprovedForAll}.
     */
    function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) {
        return _operatorApprovals[owner][operator];
    }

    /**
     * @dev See {IERC721-transferFrom}.
     */
    function transferFrom(
        address from,
        address to,
        uint256 tokenId
    ) public virtual override {
        //solhint-disable-next-line max-line-length
        require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: transfer caller is not owner nor approved");

        _transfer(from, to, tokenId);
    }

    /**
     * @dev See {IERC721-safeTransferFrom}.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId
    ) public virtual override {
        safeTransferFrom(from, to, tokenId, "");
    }

    /**
     * @dev See {IERC721-safeTransferFrom}.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId,
        bytes memory _data
    ) public virtual override {
        require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: transfer caller is not owner nor approved");
        _safeTransfer(from, to, tokenId, _data);
    }

    /**
     * @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.
     *
     * `_data` is additional data, it has no specified format and it is sent in call to `to`.
     *
     * This internal function is equivalent to {safeTransferFrom}, and can be used to e.g.
     * implement alternative mechanisms to perform token transfer, such as signature-based.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must exist and be owned by `from`.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function _safeTransfer(
        address from,
        address to,
        uint256 tokenId,
        bytes memory _data
    ) internal virtual {
        _transfer(from, to, tokenId);
        require(_checkOnERC721Received(from, to, tokenId, _data), "ERC721: transfer to non ERC721Receiver implementer");
    }

    /**
     * @dev Returns whether `tokenId` exists.
     *
     * Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.
     *
     * Tokens start existing when they are minted (`_mint`),
     * and stop existing when they are burned (`_burn`).
     */
    function _exists(uint256 tokenId) internal view virtual returns (bool) {
        return _owners[tokenId] != address(0);
    }

    /**
     * @dev Returns whether `spender` is allowed to manage `tokenId`.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function _isApprovedOrOwner(address spender, uint256 tokenId) internal view virtual returns (bool) {
        require(_exists(tokenId), "ERC721: operator query for nonexistent token");
        address owner = ERC721Upgradeable.ownerOf(tokenId);
        return (spender == owner || getApproved(tokenId) == spender || isApprovedForAll(owner, spender));
    }

    /**
     * @dev Safely mints `tokenId` and transfers it to `to`.
     *
     * Requirements:
     *
     * - `tokenId` must not exist.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function _safeMint(address to, uint256 tokenId) internal virtual {
        _safeMint(to, tokenId, "");
    }

    /**
     * @dev Same as {xref-ERC721-_safeMint-address-uint256-}[`_safeMint`], with an additional `data` parameter which is
     * forwarded in {IERC721Receiver-onERC721Received} to contract recipients.
     */
    function _safeMint(
        address to,
        uint256 tokenId,
        bytes memory _data
    ) internal virtual {
        _mint(to, tokenId);
        require(
            _checkOnERC721Received(address(0), to, tokenId, _data),
            "ERC721: transfer to non ERC721Receiver implementer"
        );
    }

    /**
     * @dev Mints `tokenId` and transfers it to `to`.
     *
     * WARNING: Usage of this method is discouraged, use {_safeMint} whenever possible
     *
     * Requirements:
     *
     * - `tokenId` must not exist.
     * - `to` cannot be the zero address.
     *
     * Emits a {Transfer} event.
     */
    function _mint(address to, uint256 tokenId) internal virtual {
        require(to != address(0), "ERC721: mint to the zero address");
        require(!_exists(tokenId), "ERC721: token already minted");

        _beforeTokenTransfer(address(0), to, tokenId);

        _balances[to] += 1;
        _owners[tokenId] = to;

        emit Transfer(address(0), to, tokenId);
    }

    /**
     * @dev Destroys `tokenId`.
     * The approval is cleared when the token is burned.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     *
     * Emits a {Transfer} event.
     */
    function _burn(uint256 tokenId) internal virtual {
        address owner = ERC721Upgradeable.ownerOf(tokenId);

        _beforeTokenTransfer(owner, address(0), tokenId);

        // Clear approvals
        _approve(address(0), tokenId);

        _balances[owner] -= 1;
        delete _owners[tokenId];

        emit Transfer(owner, address(0), tokenId);
    }

    /**
     * @dev Transfers `tokenId` from `from` to `to`.
     *  As opposed to {transferFrom}, this imposes no restrictions on msg.sender.
     *
     * Requirements:
     *
     * - `to` cannot be the zero address.
     * - `tokenId` token must be owned by `from`.
     *
     * Emits a {Transfer} event.
     */
    function _transfer(
        address from,
        address to,
        uint256 tokenId
    ) internal virtual {
        require(ERC721Upgradeable.ownerOf(tokenId) == from, "ERC721: transfer of token that is not own");
        require(to != address(0), "ERC721: transfer to the zero address");

        _beforeTokenTransfer(from, to, tokenId);

        // Clear approvals from the previous owner
        _approve(address(0), tokenId);

        _balances[from] -= 1;
        _balances[to] += 1;
        _owners[tokenId] = to;

        emit Transfer(from, to, tokenId);
    }

    /**
     * @dev Approve `to` to operate on `tokenId`
     *
     * Emits a {Approval} event.
     */
    function _approve(address to, uint256 tokenId) internal virtual {
        _tokenApprovals[tokenId] = to;
        emit Approval(ERC721Upgradeable.ownerOf(tokenId), to, tokenId);
    }

    /**
     * @dev Approve `operator` to operate on all of `owner` tokens
     *
     * Emits a {ApprovalForAll} event.
     */
    function _setApprovalForAll(
        address owner,
        address operator,
        bool approved
    ) internal virtual {
        require(owner != operator, "ERC721: approve to caller");
        _operatorApprovals[owner][operator] = approved;
        emit ApprovalForAll(owner, operator, approved);
    }

    /**
     * @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address.
     * The call is not executed if the target address is not a contract.
     *
     * @param from address representing the previous owner of the given token ID
     * @param to target address that will receive the tokens
     * @param tokenId uint256 ID of the token to be transferred
     * @param _data bytes optional data to send along with the call
     * @return bool whether the call correctly returned the expected magic value
     */
    function _checkOnERC721Received(
        address from,
        address to,
        uint256 tokenId,
        bytes memory _data
    ) private returns (bool) {
        if (to.isContract()) {
            try IERC721ReceiverUpgradeable(to).onERC721Received(_msgSender(), from, tokenId, _data) returns (bytes4 retval) {
                return retval == IERC721ReceiverUpgradeable.onERC721Received.selector;
            } catch (bytes memory reason) {
                if (reason.length == 0) {
                    revert("ERC721: transfer to non ERC721Receiver implementer");
                } else {
                    assembly {
                        revert(add(32, reason), mload(reason))
                    }
                }
            }
        } else {
            return true;
        }
    }

    /**
     * @dev Hook that is called before any token transfer. This includes minting
     * and burning.
     *
     * Calling conditions:
     *
     * - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be
     * transferred to `to`.
     * - When `from` is zero, `tokenId` will be minted for `to`.
     * - When `to` is zero, ``from``'s `tokenId` will be burned.
     * - `from` and `to` are never both zero.
     *
     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
     */
    function _beforeTokenTransfer(
        address from,
        address to,
        uint256 tokenId
    ) internal virtual {}
    uint256[44] private __gap;
}


// File openzeppelin-contracts-upgradeable/utils/cryptography/ECDSAUpgradeable.sol


// OpenZeppelin Contracts v4.4.0 (utils/cryptography/ECDSA.sol)

pragma solidity ^0.8.0;

/**
 * @dev Elliptic Curve Digital Signature Algorithm (ECDSA) operations.
 *
 * These functions can be used to verify that a message was signed by the holder
 * of the private keys of a given address.
 */
library ECDSAUpgradeable {
    enum RecoverError {
        NoError,
        InvalidSignature,
        InvalidSignatureLength,
        InvalidSignatureS,
        InvalidSignatureV
    }

    function _throwError(RecoverError error) private pure {
        if (error == RecoverError.NoError) {
            return; // no error: do nothing
        } else if (error == RecoverError.InvalidSignature) {
            revert("ECDSA: invalid signature");
        } else if (error == RecoverError.InvalidSignatureLength) {
            revert("ECDSA: invalid signature length");
        } else if (error == RecoverError.InvalidSignatureS) {
            revert("ECDSA: invalid signature 's' value");
        } else if (error == RecoverError.InvalidSignatureV) {
            revert("ECDSA: invalid signature 'v' value");
        }
    }

    /**
     * @dev Returns the address that signed a hashed message (`hash`) with
     * `signature` or error string. This address can then be used for verification purposes.
     *
     * The `ecrecover` EVM opcode allows for malleable (non-unique) signatures:
     * this function rejects them by requiring the `s` value to be in the lower
     * half order, and the `v` value to be either 27 or 28.
     *
     * IMPORTANT: `hash` _must_ be the result of a hash operation for the
     * verification to be secure: it is possible to craft signatures that
     * recover to arbitrary addresses for non-hashed data. A safe way to ensure
     * this is by receiving a hash of the original message (which may otherwise
     * be too long), and then calling {toEthSignedMessageHash} on it.
     *
     * Documentation for signature generation:
     * - with https://web3js.readthedocs.io/en/v1.3.4/web3-eth-accounts.html#sign[Web3.js]
     * - with https://docs.ethers.io/v5/api/signer/#Signer-signMessage[ethers]
     *
     * _Available since v4.3._
     */
    function tryRecover(bytes32 hash, bytes memory signature) internal pure returns (address, RecoverError) {
        // Check the signature length
        // - case 65: r,s,v signature (standard)
        // - case 64: r,vs signature (cf https://eips.ethereum.org/EIPS/eip-2098) _Available since v4.1._
        if (signature.length == 65) {
            bytes32 r;
            bytes32 s;
            uint8 v;
            // ecrecover takes the signature parameters, and the only way to get them
            // currently is to use assembly.
            assembly {
                r := mload(add(signature, 0x20))
                s := mload(add(signature, 0x40))
                v := byte(0, mload(add(signature, 0x60)))
            }
            return tryRecover(hash, v, r, s);
        } else if (signature.length == 64) {
            bytes32 r;
            bytes32 vs;
            // ecrecover takes the signature parameters, and the only way to get them
            // currently is to use assembly.
            assembly {
                r := mload(add(signature, 0x20))
                vs := mload(add(signature, 0x40))
            }
            return tryRecover(hash, r, vs);
        } else {
            return (address(0), RecoverError.InvalidSignatureLength);
        }
    }

    /**
     * @dev Returns the address that signed a hashed message (`hash`) with
     * `signature`. This address can then be used for verification purposes.
     *
     * The `ecrecover` EVM opcode allows for malleable (non-unique) signatures:
     * this function rejects them by requiring the `s` value to be in the lower
     * half order, and the `v` value to be either 27 or 28.
     *
     * IMPORTANT: `hash` _must_ be the result of a hash operation for the
     * verification to be secure: it is possible to craft signatures that
     * recover to arbitrary addresses for non-hashed data. A safe way to ensure
     * this is by receiving a hash of the original message (which may otherwise
     * be too long), and then calling {toEthSignedMessageHash} on it.
     */
    function recover(bytes32 hash, bytes memory signature) internal pure returns (address) {
        (address recovered, RecoverError error) = tryRecover(hash, signature);
        _throwError(error);
        return recovered;
    }

    /**
     * @dev Overload of {ECDSA-tryRecover} that receives the `r` and `vs` short-signature fields separately.
     *
     * See https://eips.ethereum.org/EIPS/eip-2098[EIP-2098 short signatures]
     *
     * _Available since v4.3._
     */
    function tryRecover(
        bytes32 hash,
        bytes32 r,
        bytes32 vs
    ) internal pure returns (address, RecoverError) {
        bytes32 s;
        uint8 v;
        assembly {
            s := and(vs, 0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff)
            v := add(shr(255, vs), 27)
        }
        return tryRecover(hash, v, r, s);
    }

    /**
     * @dev Overload of {ECDSA-recover} that receives the `r and `vs` short-signature fields separately.
     *
     * _Available since v4.2._
     */
    function recover(
        bytes32 hash,
        bytes32 r,
        bytes32 vs
    ) internal pure returns (address) {
        (address recovered, RecoverError error) = tryRecover(hash, r, vs);
        _throwError(error);
        return recovered;
    }

    /**
     * @dev Overload of {ECDSA-tryRecover} that receives the `v`,
     * `r` and `s` signature fields separately.
     *
     * _Available since v4.3._
     */
    function tryRecover(
        bytes32 hash,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) internal pure returns (address, RecoverError) {
        // EIP-2 still allows signature malleability for ecrecover(). Remove this possibility and make the signature
        // unique. Appendix F in the Ethereum Yellow paper (https://ethereum.github.io/yellowpaper/paper.pdf), defines
        // the valid range for s in (301): 0 < s < secp256k1n ÷ 2 + 1, and for v in (302): v ∈ {27, 28}. Most
        // signatures from current libraries generate a unique signature with an s-value in the lower half order.
        //
        // If your library generates malleable signatures, such as s-values in the upper range, calculate a new s-value
        // with 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141 - s1 and flip v from 27 to 28 or
        // vice versa. If your library also generates signatures with 0/1 for v instead 27/28, add 27 to v to accept
        // these malleable signatures as well.
        if (uint256(s) > 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF5D576E7357A4501DDFE92F46681B20A0) {
            return (address(0), RecoverError.InvalidSignatureS);
        }
        if (v != 27 && v != 28) {
            return (address(0), RecoverError.InvalidSignatureV);
        }

        // If the signature is valid (and not malleable), return the signer address
        address signer = ecrecover(hash, v, r, s);
        if (signer == address(0)) {
            return (address(0), RecoverError.InvalidSignature);
        }

        return (signer, RecoverError.NoError);
    }

    /**
     * @dev Overload of {ECDSA-recover} that receives the `v`,
     * `r` and `s` signature fields separately.
     */
    function recover(
        bytes32 hash,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) internal pure returns (address) {
        (address recovered, RecoverError error) = tryRecover(hash, v, r, s);
        _throwError(error);
        return recovered;
    }

    /**
     * @dev Returns an Ethereum Signed Message, created from a `hash`. This
     * produces hash corresponding to the one signed with the
     * https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`]
     * JSON-RPC method as part of EIP-191.
     *
     * See {recover}.
     */
    function toEthSignedMessageHash(bytes32 hash) internal pure returns (bytes32) {
        // 32 is the length in bytes of hash,
        // enforced by the type signature above
        return keccak256(abi.encodePacked("\x19Ethereum Signed Message:\n32", hash));
    }

    /**
     * @dev Returns an Ethereum Signed Message, created from `s`. This
     * produces hash corresponding to the one signed with the
     * https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`]
     * JSON-RPC method as part of EIP-191.
     *
     * See {recover}.
     */
    function toEthSignedMessageHash(bytes memory s) internal pure returns (bytes32) {
        return keccak256(abi.encodePacked("\x19Ethereum Signed Message:\n", StringsUpgradeable.toString(s.length), s));
    }

    /**
     * @dev Returns an Ethereum Signed Typed Data, created from a
     * `domainSeparator` and a `structHash`. This produces hash corresponding
     * to the one signed with the
     * https://eips.ethereum.org/EIPS/eip-712[`eth_signTypedData`]
     * JSON-RPC method as part of EIP-712.
     *
     * See {recover}.
     */
    function toTypedDataHash(bytes32 domainSeparator, bytes32 structHash) internal pure returns (bytes32) {
        return keccak256(abi.encodePacked("\x19\x01", domainSeparator, structHash));
    }
}


// File openzeppelin-contracts-upgradeable/utils/cryptography/draft-EIP712Upgradeable.sol


// OpenZeppelin Contracts v4.4.0 (utils/cryptography/draft-EIP712.sol)

pragma solidity ^0.8.0;


/**
 * @dev https://eips.ethereum.org/EIPS/eip-712[EIP 712] is a standard for hashing and signing of typed structured data.
 *
 * The encoding specified in the EIP is very generic, and such a generic implementation in Solidity is not feasible,
 * thus this contract does not implement the encoding itself. Protocols need to implement the type-specific encoding
 * they need in their contracts using a combination of `abi.encode` and `keccak256`.
 *
 * This contract implements the EIP 712 domain separator ({_domainSeparatorV4}) that is used as part of the encoding
 * scheme, and the final step of the encoding to obtain the message digest that is then signed via ECDSA
 * ({_hashTypedDataV4}).
 *
 * The implementation of the domain separator was designed to be as efficient as possible while still properly updating
 * the chain id to protect against replay attacks on an eventual fork of the chain.
 *
 * NOTE: This contract implements the version of the encoding known as "v4", as implemented by the JSON RPC method
 * https://docs.metamask.io/guide/signing-data.html[`eth_signTypedDataV4` in MetaMask].
 *
 * _Available since v3.4._
 */
abstract contract EIP712Upgradeable is Initializable {
    /* solhint-disable var-name-mixedcase */
    bytes32 private _HASHED_NAME;
    bytes32 private _HASHED_VERSION;
    bytes32 private constant _TYPE_HASH = keccak256("EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)");

    /* solhint-enable var-name-mixedcase */

    /**
     * @dev Initializes the domain separator and parameter caches.
     *
     * The meaning of `name` and `version` is specified in
     * https://eips.ethereum.org/EIPS/eip-712#definition-of-domainseparator[EIP 712]:
     *
     * - `name`: the user readable name of the signing domain, i.e. the name of the DApp or the protocol.
     * - `version`: the current major version of the signing domain.
     *
     * NOTE: These parameters cannot be changed except through a xref:learn::upgrading-smart-contracts.adoc[smart
     * contract upgrade].
     */
    function __EIP712_init(string memory name, string memory version) internal initializer {
        __EIP712_init_unchained(name, version);
    }

    function __EIP712_init_unchained(string memory name, string memory version) internal initializer {
        bytes32 hashedName = keccak256(bytes(name));
        bytes32 hashedVersion = keccak256(bytes(version));
        _HASHED_NAME = hashedName;
        _HASHED_VERSION = hashedVersion;
    }

    /**
     * @dev Returns the domain separator for the current chain.
     */
    function _domainSeparatorV4() internal view returns (bytes32) {
        return _buildDomainSeparator(_TYPE_HASH, _EIP712NameHash(), _EIP712VersionHash());
    }

    function _buildDomainSeparator(
        bytes32 typeHash,
        bytes32 nameHash,
        bytes32 versionHash
    ) private view returns (bytes32) {
        return keccak256(abi.encode(typeHash, nameHash, versionHash, block.chainid, address(this)));
    }

    /**
     * @dev Given an already https://eips.ethereum.org/EIPS/eip-712#definition-of-hashstruct[hashed struct], this
     * function returns the hash of the fully encoded EIP712 message for this domain.
     *
     * This hash can be used together with {ECDSA-recover} to obtain the signer of a message. For example:
     *
     * ```solidity
     * bytes32 digest = _hashTypedDataV4(keccak256(abi.encode(
     *     keccak256("Mail(address to,string contents)"),
     *     mailTo,
     *     keccak256(bytes(mailContents))
     * )));
     * address signer = ECDSA.recover(digest, signature);
     * ```
     */
    function _hashTypedDataV4(bytes32 structHash) internal view virtual returns (bytes32) {
        return ECDSAUpgradeable.toTypedDataHash(_domainSeparatorV4(), structHash);
    }

    /**
     * @dev The hash of the name parameter for the EIP712 domain.
     *
     * NOTE: This function reads from storage by default, but can be redefined to return a constant value if gas costs
     * are a concern.
     */
    function _EIP712NameHash() internal virtual view returns (bytes32) {
        return _HASHED_NAME;
    }

    /**
     * @dev The hash of the version parameter for the EIP712 domain.
     *
     * NOTE: This function reads from storage by default, but can be redefined to return a constant value if gas costs
     * are a concern.
     */
    function _EIP712VersionHash() internal virtual view returns (bytes32) {
        return _HASHED_VERSION;
    }
    uint256[50] private __gap;
}


// File contracts/utils/EIP712Custom.sol

// contracts/Market.sol

pragma solidity ^0.8.0;

/// @title Contract for game Item sale
/// @notice User can use this contract for selling and buying game Items
/// @dev this's an upgradeable contract with creating item for sale, selling and unlisting gameItem from sale 
/// @dev Marketplace is inheriting from IMarketplace and EIP712Upgradeable
contract EIP712Custom is EIP712Upgradeable {

    error IncorrectSigner(address signer);

    error DeadlineExpired(uint256 deadline, uint256 currentTimestamp);

}


// File contracts/interfaces/IGameItem.sol


pragma solidity ^0.8.0;

/// @notice Interface for GameItemContract
interface IGameItem {
    /// @notice this event is emitted when NFT GameItem is minted
    /// @param to new owner of GameItem
    /// @param tokenID id ow new GameItem
    /// @param quality quality(0-4) of new GameItem
    /// @param seasonID BattlePass season of new GameItem
    /// @param hacker the hacker who minted this item
    event Minted(
        address indexed to,
        uint256 indexed tokenID,
        uint8 quality,
        uint256 seasonID,
        address hacker);

    event MintedForUser(
        address indexed to,
        uint256 indexed tokenID,
        uint8 quality,
        uint256 financialWalletPayment,
        uint256 seasonID,
        address hacker);

    function version() external view returns (uint32);


    /// @notice gets creator's address of specific GameItem
    /// @param _tokenID token id of specific GameItem
    /// @return minter's address 
    function getItemCreator(uint256 _tokenID) external view returns(address);
    /// @notice gets (hacker) address of specific GameItem
    /// @param _tokenID token id of specific GameItem
    /// @return hacker's address 
    function getItemHacker(uint256 _tokenID) external view returns(address);
    /// @notice gets validator's(hacker) address of specific GameItem
    /// @param _tokenID token id of specific GameItem
    /// @return validator's address 
    function getItemValidator(uint256 _tokenID) external view returns(uint256);
    /// @notice gets quality of specific GameItem
    /// @param _tokenID token id of specific GameItem
    /// @return uint8 parameter. quality of GameItem 
    function getItemQuality(uint256 _tokenID) external view returns(uint8);
    /// @notice gets season of specific GameItem
    /// @param _tokenID token id of specific GameItem
    /// @return uint256 parameter. season id
    function getItemSeason(uint256 _tokenID) external view returns(uint256);
    /// @notice gets market state of specific GameItem
    /// @param _tokenID token id of specific GameItem
    /// @return uint8 parameter. Market state of GameItem 
    function getItemState(uint256 _tokenID) external view returns(uint8);
    /// @notice changes market state of specific GameItem
    /// @param _tokenID token id of specific GameItem
    /// @param _state (0-2) new item state
    function changeItemState(uint256 _tokenID, uint8 _state) external;

    /// @notice mints new GameItem
    /// @dev can be called only via DataCubeContract or ValidatorLicenseContract
    /// @dev emits "Minted" event
    /// @param _receiver receiver's address of new GameItem
    /// @param _VLTokenID token id of specific ValidatorLicense
    /// @param _seasonID token id of season
    /// @param _DCQuality quality of new GameItem
    /// @param _metadataURL URL to metadata storage
    function mintFromCube(
        address _receiver, 
        uint256 _VLTokenID, 
        uint256 _seasonID, 
        uint8 _DCQuality, 
        string memory _metadataURL) external;

    /// @notice mints new GameItem
    /// @dev can be called by user, with signature
    /// @dev sends GUNs to this contract address
    /// @param _VLTokenID token id of specific ValidatorLicense
    /// @param _seasonID token id of season
    /// @param _quality quality of new GameItem
    /// @param _price price(in GUNs) od DataCube decoding
    /// @param _metadataURL URL to metadata storage
    function mintForUser(
        uint256 _VLTokenID,
        uint256 _seasonID,
        uint8 _quality,
        uint256 _price,
        string memory _metadataURL,
        address receiver) payable external;

    function burn(uint256 _tokenID) external;

    function bridgeBurn(uint256 _tokenID) external;
    
    function bridgeMint(address to, uint256 _tokenID) external;
}


// File contracts/interfaces/IMarketplace.sol


pragma solidity ^0.8.0;


/// @notice Interface for Marketplace
interface IMarketplace {


    function version() external view returns (uint32);


    /// @notice the user creates MarketItem and set gameItem for sale
    /// @dev Emits "MarketItemCreated" event. Requirements: price must be more or equal to floorPrice; msg.value must be equal to itemCreateFee; the signer must have BACKEND_ROLE
    /// @dev if _battlePassFlag is false then floorPrice must be more or equal to battlePassFee
    /// @dev calls transferFrom function from ERC721Upgradeable contract
    /// @param _tokenId Id of NFT in the gameItemContract
    /// @param _price The price of item
    /// @param _floorPrice Floor price calculation includes all costs related to the item placed on the marketplace.
    /// @param _payer The lever which controls if the price includes fee or it must be paid above
    /// @param _battlePassFlag Value that shows if the item was created with battlePass or not
    /// @param _saleDuration duration of the sale of the item(in unix time)
    /// @param _deadline date of expiring signature(in unix time)
    /// @param _signature The signature that verifies all the data above by BACKEND signer
    function createMarketItem(
        uint256 _tokenId,
        uint256 _price,
        uint256 _floorPrice,
        bool _payer,
        bool _battlePassFlag,
        uint256 _saleDuration,
        uint256 _deadline,
        bytes memory _signature) external payable;

    /// @notice the user unlist Item from sale
    /// @dev Requirements: the caller of this function must be the seller or the admin; the signer must have BACKEND_ROLE
    /// @dev calls transferFrom function from ERC721Upgradeable contract
    /// @param _itemId Id of MarketItem.
    /// @param _deadline date of expiring signature(in unix time)
    /// @param _signature The signature that verifies all the data above by BACKEND signer
    function unlistMarketItem(
    uint256 _itemId,
    uint256 _deadline,
    bytes memory _signature
    ) external;


    /// @notice the user buy the Item 
    /// @dev Emits "MarketItemSale" event. Requirements: the signer must have BACKEND_ROLE
    /// @dev calls _makeFeePayment function from Marketplace contract; calls _createMarketTransfer function from Marketplace contract
    /// @param _itemId Id of MarketItem.
    /// @param _deadline date of expiring signature(in unix time)
    /// @param _signature The signature that verifies all the data above by BACKEND signer
    function createMarketSale(
    uint256 _itemId,
    uint256 _deadline,
    bytes memory _signature
    ) external payable;

}


// File openzeppelin-contracts-upgradeable/access/IAccessControlUpgradeable.sol


// OpenZeppelin Contracts v4.4.0 (access/IAccessControl.sol)

pragma solidity ^0.8.0;

/**
 * @dev External interface of AccessControl declared to support ERC165 detection.
 */
interface IAccessControlUpgradeable {
    /**
     * @dev Emitted when `newAdminRole` is set as ``role``'s admin role, replacing `previousAdminRole`
     *
     * `DEFAULT_ADMIN_ROLE` is the starting admin for all roles, despite
     * {RoleAdminChanged} not being emitted signaling this.
     *
     * _Available since v3.1._
     */
    event RoleAdminChanged(bytes32 indexed role, bytes32 indexed previousAdminRole, bytes32 indexed newAdminRole);

    /**
     * @dev Emitted when `account` is granted `role`.
     *
     * `sender` is the account that originated the contract call, an admin role
     * bearer except when using {AccessControl-_setupRole}.
     */
    event RoleGranted(bytes32 indexed role, address indexed account, address indexed sender);

    /**
     * @dev Emitted when `account` is revoked `role`.
     *
     * `sender` is the account that originated the contract call:
     *   - if using `revokeRole`, it is the admin role bearer
     *   - if using `renounceRole`, it is the role bearer (i.e. `account`)
     */
    event RoleRevoked(bytes32 indexed role, address indexed account, address indexed sender);

    /**
     * @dev Returns `true` if `account` has been granted `role`.
     */
    function hasRole(bytes32 role, address account) external view returns (bool);

    /**
     * @dev Returns the admin role that controls `role`. See {grantRole} and
     * {revokeRole}.
     *
     * To change a role's admin, use {AccessControl-_setRoleAdmin}.
     */
    function getRoleAdmin(bytes32 role) external view returns (bytes32);

    /**
     * @dev Grants `role` to `account`.
     *
     * If `account` had not been already granted `role`, emits a {RoleGranted}
     * event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     */
    function grantRole(bytes32 role, address account) external;

    /**
     * @dev Revokes `role` from `account`.
     *
     * If `account` had been granted `role`, emits a {RoleRevoked} event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     */
    function revokeRole(bytes32 role, address account) external;

    /**
     * @dev Revokes `role` from the calling account.
     *
     * Roles are often managed via {grantRole} and {revokeRole}: this function's
     * purpose is to provide a mechanism for accounts to lose their privileges
     * if they are compromised (such as when a trusted device is misplaced).
     *
     * If the calling account had been granted `role`, emits a {RoleRevoked}
     * event.
     *
     * Requirements:
     *
     * - the caller must be `account`.
     */
    function renounceRole(bytes32 role, address account) external;
}


// File openzeppelin-contracts-upgradeable/access/AccessControlUpgradeable.sol


// OpenZeppelin Contracts v4.4.0 (access/AccessControl.sol)

pragma solidity ^0.8.0;





/**
 * @dev Contract module that allows children to implement role-based access
 * control mechanisms. This is a lightweight version that doesn't allow enumerating role
 * members except through off-chain means by accessing the contract event logs. Some
 * applications may benefit from on-chain enumerability, for those cases see
 * {AccessControlEnumerable}.
 *
 * Roles are referred to by their `bytes32` identifier. These should be exposed
 * in the external API and be unique. The best way to achieve this is by
 * using `public constant` hash digests:
 *
 * ```
 * bytes32 public constant MY_ROLE = keccak256("MY_ROLE");
 * ```
 *
 * Roles can be used to represent a set of permissions. To restrict access to a
 * function call, use {hasRole}:
 *
 * ```
 * function foo() public {
 *     require(hasRole(MY_ROLE, msg.sender));
 *     ...
 * }
 * ```
 *
 * Roles can be granted and revoked dynamically via the {grantRole} and
 * {revokeRole} functions. Each role has an associated admin role, and only
 * accounts that have a role's admin role can call {grantRole} and {revokeRole}.
 *
 * By default, the admin role for all roles is `DEFAULT_ADMIN_ROLE`, which means
 * that only accounts with this role will be able to grant or revoke other
 * roles. More complex role relationships can be created by using
 * {_setRoleAdmin}.
 *
 * WARNING: The `DEFAULT_ADMIN_ROLE` is also its own admin: it has permission to
 * grant and revoke this role. Extra precautions should be taken to secure
 * accounts that have been granted it.
 */
abstract contract AccessControlUpgradeable is Initializable, ContextUpgradeable, IAccessControlUpgradeable, ERC165Upgradeable {
    function __AccessControl_init() internal initializer {
        __Context_init_unchained();
        __ERC165_init_unchained();
        __AccessControl_init_unchained();
    }

    function __AccessControl_init_unchained() internal initializer {
    }
    struct RoleData {
        mapping(address => bool) members;
        bytes32 adminRole;
    }

    mapping(bytes32 => RoleData) private _roles;

    bytes32 public constant DEFAULT_ADMIN_ROLE = 0x00;

    /**
     * @dev Modifier that checks that an account has a specific role. Reverts
     * with a standardized message including the required role.
     *
     * The format of the revert reason is given by the following regular expression:
     *
     *  /^AccessControl: account (0x[0-9a-f]{40}) is missing role (0x[0-9a-f]{64})$/
     *
     * _Available since v4.1._
     */
    modifier onlyRole(bytes32 role) {
        _checkRole(role, _msgSender());
        _;
    }

    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
        return interfaceId == type(IAccessControlUpgradeable).interfaceId || super.supportsInterface(interfaceId);
    }

    /**
     * @dev Returns `true` if `account` has been granted `role`.
     */
    function hasRole(bytes32 role, address account) public view override returns (bool) {
        return _roles[role].members[account];
    }

    /**
     * @dev Revert with a standard message if `account` is missing `role`.
     *
     * The format of the revert reason is given by the following regular expression:
     *
     *  /^AccessControl: account (0x[0-9a-f]{40}) is missing role (0x[0-9a-f]{64})$/
     */
    function _checkRole(bytes32 role, address account) internal view {
        if (!hasRole(role, account)) {
            revert(
                string(
                    abi.encodePacked(
                        "AccessControl: account ",
                        StringsUpgradeable.toHexString(uint160(account), 20),
                        " is missing role ",
                        StringsUpgradeable.toHexString(uint256(role), 32)
                    )
                )
            );
        }
    }

    /**
     * @dev Returns the admin role that controls `role`. See {grantRole} and
     * {revokeRole}.
     *
     * To change a role's admin, use {_setRoleAdmin}.
     */
    function getRoleAdmin(bytes32 role) public view override returns (bytes32) {
        return _roles[role].adminRole;
    }

    /**
     * @dev Grants `role` to `account`.
     *
     * If `account` had not been already granted `role`, emits a {RoleGranted}
     * event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     */
    function grantRole(bytes32 role, address account) public virtual override onlyRole(getRoleAdmin(role)) {
        _grantRole(role, account);
    }

    /**
     * @dev Revokes `role` from `account`.
     *
     * If `account` had been granted `role`, emits a {RoleRevoked} event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     */
    function revokeRole(bytes32 role, address account) public virtual override onlyRole(getRoleAdmin(role)) {
        _revokeRole(role, account);
    }

    /**
     * @dev Revokes `role` from the calling account.
     *
     * Roles are often managed via {grantRole} and {revokeRole}: this function's
     * purpose is to provide a mechanism for accounts to lose their privileges
     * if they are compromised (such as when a trusted device is misplaced).
     *
     * If the calling account had been revoked `role`, emits a {RoleRevoked}
     * event.
     *
     * Requirements:
     *
     * - the caller must be `account`.
     */
    function renounceRole(bytes32 role, address account) public virtual override {
        require(account == _msgSender(), "AccessControl: can only renounce roles for self");

        _revokeRole(role, account);
    }

    /**
     * @dev Grants `role` to `account`.
     *
     * If `account` had not been already granted `role`, emits a {RoleGranted}
     * event. Note that unlike {grantRole}, this function doesn't perform any
     * checks on the calling account.
     *
     * [WARNING]
     * ====
     * This function should only be called from the constructor when setting
     * up the initial roles for the system.
     *
     * Using this function in any other way is effectively circumventing the admin
     * system imposed by {AccessControl}.
     * ====
     *
     * NOTE: This function is deprecated in favor of {_grantRole}.
     */
    function _setupRole(bytes32 role, address account) internal virtual {
        _grantRole(role, account);
    }

    /**
     * @dev Sets `adminRole` as ``role``'s admin role.
     *
     * Emits a {RoleAdminChanged} event.
     */
    function _setRoleAdmin(bytes32 role, bytes32 adminRole) internal virtual {
        bytes32 previousAdminRole = getRoleAdmin(role);
        _roles[role].adminRole = adminRole;
        emit RoleAdminChanged(role, previousAdminRole, adminRole);
    }

    /**
     * @dev Grants `role` to `account`.
     *
     * Internal function without access restriction.
     */
    function _grantRole(bytes32 role, address account) internal virtual {
        if (!hasRole(role, account)) {
            _roles[role].members[account] = true;
            emit RoleGranted(role, account, _msgSender());
        }
    }

    /**
     * @dev Revokes `role` from `account`.
     *
     * Internal function without access restriction.
     */
    function _revokeRole(bytes32 role, address account) internal virtual {
        if (hasRole(role, account)) {
            _roles[role].members[account] = false;
            emit RoleRevoked(role, account, _msgSender());
        }
    }
    uint256[49] private __gap;
}


// File openzeppelin-contracts-upgradeable/security/PausableUpgradeable.sol


// OpenZeppelin Contracts v4.4.0 (security/Pausable.sol)

pragma solidity ^0.8.0;


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

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

    bool private _paused;

    /**
     * @dev Initializes the contract in unpaused state.
     */
    function __Pausable_init() internal initializer {
        __Context_init_unchained();
        __Pausable_init_unchained();
    }

    function __Pausable_init_unchained() internal initializer {
        _paused = false;
    }

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

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

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

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

    /**
     * @dev Returns to normal state.
     *
     * Requirements:
     *
     * - The contract must be paused.
     */
    function _unpause() internal virtual whenPaused {
        _paused = false;
        emit Unpaused(_msgSender());
    }
    uint256[49] private __gap;
}


// File contracts/PlatformSettings.sol

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



/// @title A platform settings for OTG contracts
/// @notice Admin can use this contract for granting and revoking roles, pause and unpause platform, set new wallets for fee receiving
/// @dev This contract inherits 'Initializable', 'AccessControlUpgradeable', 'PausableUpgradeable' contracts form openzeppelin library
contract PlatformSettings is Initializable, AccessControlUpgradeable, PausableUpgradeable{
    bytes32 public constant SECONDARY_ADMIN_ROLE = keccak256("SECONDARY_ADMIN_ROLE");
    bytes32 public constant BACKEND_ROLE = keccak256("BACKEND_ROLE");
    uint256 public constant gunDecimals = 10**18;
    uint256 public constant PERCENT_DENOMINATOR = 100;

    // address of main admin
    address public initialAdmin;
    // address of financial wallet (withdraws GUNs from contract)
    address payable public financialWallet;

    // percentage that represents validator fee during decoding process
    uint256 public validatorFeePercentageForDecoding;
    // percentage that represents platform fee during decoding process
    uint256 public platformFeePercentageForDecoding;


    bytes32 public constant BRIDGE_ROLE = keccak256("BRIDGE_ROLE");

    /// @notice this event is emitted when new financial wallet is set
    /// @param newWallet address of new financial wallet
    event newFinancialWallet(
        address indexed newWallet
    );


    error InvalidRole(address caller, bytes32 role);

    error IncorrectFeeDistribution();


    error AlreadyHasRole(address account, bytes32 role);


    error AlreadyHasNotRole(address account, bytes32 role);


    /// @notice A disposable function for initializing contract
    /// @param _admin address of initial admin of contract
    /// @dev Grants caller with admin role
    /// @dev Also calls initializers of AccessControl and Pausable contracts.
    /// @dev Sets caller as an initialAdmin and financeWallet(wallet for receiving fees and royalties)
    /// @dev Sets initial fee percentage for decoding process
    function initialize(
        address _admin
    )public initializer{
        __AccessControl_init();
        __Pausable_init_unchained();
        _setupRole(DEFAULT_ADMIN_ROLE, _admin);
        initialAdmin = _admin;
        financialWallet = payable(msg.sender);
        validatorFeePercentageForDecoding = 50;
        platformFeePercentageForDecoding = 50;
    }
// *********************** MODIFIERS *********************************************
    /// @notice verifies if message sender is an admin or secondary admin
    modifier onlyAdmin{
        if(!(hasRole(DEFAULT_ADMIN_ROLE, msg.sender) || hasRole(SECONDARY_ADMIN_ROLE,msg.sender))){
            revert InvalidRole(msg.sender, SECONDARY_ADMIN_ROLE);
        }
        _;
    }

    // *********************** VIEW FUNCTIONS *********************************************
    /// TODO restrict function visibility from view to pure
    function version() public pure returns (uint32){
        //version in format aaa.bbb.ccc => aaa*1E6+bbb*1E3+ccc;
        return uint32(1000001);
    }

// *********************** FUNCTIONS *********************************************
    /// @notice checks account for admin roles
    function isAdmin(address account) public view returns(bool){
        return (hasRole(DEFAULT_ADMIN_ROLE, account)||hasRole(SECONDARY_ADMIN_ROLE, account));
    }

    /// @notice checks account for backend role
    function isBackendRole(address account) public view returns(bool){
        return hasRole(BACKEND_ROLE, account);
    }

    function isBridgeRole(address account) public view returns(bool){
        return hasRole(BRIDGE_ROLE, account);
    }

    /// @notice checks account for admin roles or if platform is not paused
    function isAdminOrNotPaused(address caller) public view returns(bool){
        return(!paused()||hasRole(DEFAULT_ADMIN_ROLE,caller)||hasRole(SECONDARY_ADMIN_ROLE,caller));
    }

    /// TODO check if this function must exist
    /// @notice returns a number, that represents amount of fee, which validator will receive after decoding process
    function getValidatorFeeForDecoding(uint256 _price)public view returns(uint256){
        if((platformFeePercentageForDecoding + validatorFeePercentageForDecoding)!=100){
            revert IncorrectFeeDistribution();
        }
        return (_price* gunDecimals * validatorFeePercentageForDecoding)/PERCENT_DENOMINATOR;
    }

    /// TODO check if this function must exist
    /// @notice returns a number, that represents amount of fee, which financialWallet will receive after decoding process
    function getPlatformFeeForDecoding(uint256 _price)public view returns(uint256){
        if((platformFeePercentageForDecoding + validatorFeePercentageForDecoding)!=100){
            revert IncorrectFeeDistribution();
        }
        return (_price* gunDecimals * platformFeePercentageForDecoding)/PERCENT_DENOMINATOR;
    }
    /// @notice suspends most functions in contracts
    /// @dev Caller must be admin
    function pause() public onlyAdmin{
        _pause();
    }

    /// @notice restores most functions in contracts
    /// @dev Caller must be admin
    function unpause() public onlyAdmin{
        _unpause();
    }

    /// @notice sets new address as a payable financialWallet
    /// @dev caller must be admin, emits 'newFinancialWallet' 
    function setNewFinancialWallet(address _newWalletAddress) public onlyAdmin{
        financialWallet = payable(_newWalletAddress);
        emit newFinancialWallet(_newWalletAddress);
    }

    /// @notice granting secondary admin role to a specific address
    /// @param account address of a specific account 
    function grantSecondaryAdminRole(address account) public onlyRole(DEFAULT_ADMIN_ROLE){
        if(hasRole(SECONDARY_ADMIN_ROLE, account)){
            revert AlreadyHasRole(account, SECONDARY_ADMIN_ROLE); 
        }
        grantRole(SECONDARY_ADMIN_ROLE, account);
    }

    /// @notice revoking secondary admin role from a specific address
    /// @param account address of a specific account
    function revokeSecondaryAdminRole(address account) public onlyRole(DEFAULT_ADMIN_ROLE){
        if(!hasRole(SECONDARY_ADMIN_ROLE, account)){
            revert AlreadyHasNotRole(account, SECONDARY_ADMIN_ROLE); 
        }
        revokeRole(SECONDARY_ADMIN_ROLE, account);
    }

    /// @notice granting backend admin role from a specific address
    /// @param account address of a specific account 
    function grantBackendRole(address account) public onlyRole(DEFAULT_ADMIN_ROLE){
        if(hasRole(BACKEND_ROLE, account)){
            revert AlreadyHasRole(account, BACKEND_ROLE); 
        }
        grantRole(BACKEND_ROLE, account);
    }

    /// @notice revoking backend admin role from a specific address
    /// @param account address of a specific account 
    function revokeBackendRole(address account) public onlyRole(DEFAULT_ADMIN_ROLE){
        if(!hasRole(BACKEND_ROLE, account)){
            revert AlreadyHasNotRole(account, BACKEND_ROLE); 
        }
        revokeRole(BACKEND_ROLE, account);
    }

    function grantBridgeRole(address account) public onlyRole(DEFAULT_ADMIN_ROLE){
        if(hasRole(BRIDGE_ROLE, account)){
            revert AlreadyHasRole(account, BRIDGE_ROLE); 
        }
        grantRole(BRIDGE_ROLE, account);
    }

    function revokeBridgeRole(address account) public onlyRole(DEFAULT_ADMIN_ROLE){
        if(!hasRole(BRIDGE_ROLE, account)){
            revert AlreadyHasNotRole(account, BRIDGE_ROLE); 
        }
        revokeRole(BRIDGE_ROLE, account);
    }

    /// TODO maybe it will be better, to set validatorFeePercentageForDecoding and platformFeePercentageForDecoding with one function
    /// @notice Sets a number, that represents amount of fee, which validator will receive after 
    /// @dev caller must be admin
    function setValidatorFeePercentageForDecoding(uint256 _percentage) public onlyAdmin{
        validatorFeePercentageForDecoding = _percentage;
    }
    
    /// @notice Sets a number, that represents amount of fee, which financialWallet will receive after 
    /// @dev caller must be admin
    function setPlatformFeePercentageForDecoding(uint256 _percentage) public onlyAdmin{
        platformFeePercentageForDecoding = _percentage;
    }

    // TODO DEPRECATED, will be deleted sooner
    function getValidatorFeePercentageForDecoding() external view returns(uint256){
        return(validatorFeePercentageForDecoding);
    }

    // TODO DEPRECATED, will be deleted sooner
    function getPlatformFeePercentageForDecoding() external view returns(uint256){
        return(platformFeePercentageForDecoding);
    }
}


// File contracts/Marketplace.sol

// contracts/Market.sol

pragma solidity ^0.8.0;






/// @title Contract for game Item sale
/// @notice User can use this contract for selling and buying game Items
/// @dev this's an upgradeable contract with creating item for sale, selling and unlisting gameItem from sale 
/// @dev Marketplace is inheriting from IMarketplace and EIP712Upgradeable
contract Marketplace is IMarketplace, EIP712Custom {

    using CountersUpgradeable for CountersUpgradeable.Counter;

    // address for GameItem contract
    address public gameItem;
    // address for validatorLicenseContract
    address public validatorLicenseContract;
    // address for platformSettingsContractAddress
    address public platformSettingsContractAddress;

    // % fee for sale Item and it sends to financialWallet
    uint256 public marketFee;
    // % fee for sale Item and it sends to the validator
    uint256 public validatorFee;
    // % fee for sale Item and it sends to user who created item
    uint256 public firstMinterFee;
    // fee for create Item for sale and it sends to financialWallet
    uint256 public itemCreateFee;
    // fee for sale Item which was created without battlePass and it sends to the validator
    uint256 public battlePassFee;
    // variable that controls fee percentages 
    uint256 public percentage;

    // variable that lists the items that were created for sale
    CountersUpgradeable.Counter private _itemIds;

    // structure of MarketItem 
    // itemId - id of MarketItem, nftContract - address of NFT item, tokenId - id of NFT, seller - the seller's address, owner - the address of item owner, price - the price of item, sold - value that shows if the sale was made or not, payer - the lever which controls if the price includes fee or it must be paid above, battlePassFlag - value that shows if the item was created with battlePass or not
    struct MarketItem {
        uint256 itemId;
        address nftContract;
        uint256 tokenId;
        address payable seller;
        address owner;
        uint256 price;
        bool sold;
        bool payer;
        bool battlePassFlag;
        uint256 deadline;
    }

    // uint to MarketItem 
    mapping(uint256 => MarketItem) private idToMarketItem;

    /// @notice This event is emitted when a marketItem are created.
    /// @param itemId Id of MarketItem.
    /// @param nftContract The address of NFT item.
    /// @param tokenId Id of NFT.
    /// @param seller The seller's address.
    /// @param owner The address of item owner.
    /// @param price The price of item.
    /// @param sold Value that shows if the sale was made or not.
    /// @param payer The lever which controls if the price includes fee or it must be paid above.
    /// @param battlePassFlag Value that shows if the item was created with battlePass or not.
    /// @param saleDeadline The deadline of the item sale(in unix time)
    /// @param itemCreateFee fee that payed for item creation to the financialWallet

    event MarketItemCreated (
        uint256 indexed itemId,
        address indexed nftContract,
        uint256 indexed tokenId,
        address seller,
        address owner,
        uint256 price,
        bool sold,
        bool payer,
        bool battlePassFlag,
        uint256 saleDeadline,
        uint256 itemCreateFee
    );

    /// DEPRECATED WILL BE DELETED
    event MarketItemChangePrice (
        address indexed nftContract,
        uint256 indexed itemId,
        uint256 newPrice
    );

    /// @notice This event is emitted when a gameItem was sold.
    /// @param nftContract The address of NFT item.
    /// @param itemId Id of MarketItem.
    /// @param buyer The buyer's address.
    /// @param price The price of item.
    event MarketItemSale (
        address indexed nftContract,
        uint256 indexed itemId,
        address buyer,
        uint256 price
    );

    event FeePaymentForSale (
        address financialWallet,
        uint256 marketPayment,
        address validator,
        uint256 validatorPayment,
        address itemCreator,
        uint256 itemCreatorPayment,
        address seller,
        uint256 sellerPayment
    );


    error InvalidRole(address caller, bytes32 role);

    error IncorrectFloorPrice(uint256 floorPrice, uint256 minValue);

    error IncorrectPrice(uint256 price, uint256 floorPrice);

    error IncorrectValue(uint256 value, uint256 price);

    error UnsuccessfulPayment(address from, address to, uint256 amount);

    error IncorrectCaller(address caller);

    error ItemDeadlineExpired(uint256 deadline, uint256 currentTimestamp);

    error ItemSold();

    error IncorrectFeeDistribution();




    /// @notice A disposable function for initializing contract
    /// @param _gameItem address of GameItemContract
    /// @param _platformSettingsContractAddress address of PlatformSettings contract
    /// @param _validatorLicenseContract address of ValidatorLicenseContract contract
    /// @param _marketFee % fee for sale Item and it sends to financialWallet(it must be given relative to the percentage)
    /// @param _validatorFee % fee for sale Item and it sends to the validator(it must be given relative to the percentage)
    /// @param _firstMinterFee % fee for sale Item and it sends to user who created item(it must be given relative to the percentage)
    /// @param _itemCreateFee fee for create Item for sale and it sends to financialWallet
    /// @param _battlePassFee fee for sale Item which was created without battlePass and it sends to the validator
    function initialize(
        address _gameItem, 
        address _platformSettingsContractAddress,
        address _validatorLicenseContract, 
        uint256 _marketFee, 
        uint256 _validatorFee, 
        uint256 _firstMinterFee, 
        uint256 _itemCreateFee,
        uint256 _battlePassFee
    ) public initializer {
        __EIP712_init_unchained('Marketplace','1');

        gameItem = _gameItem;
        platformSettingsContractAddress = _platformSettingsContractAddress;
        validatorLicenseContract = _validatorLicenseContract;
        marketFee = _marketFee;
        validatorFee = _validatorFee;
        firstMinterFee = _firstMinterFee;
        itemCreateFee = _itemCreateFee;
        battlePassFee = _battlePassFee;
        percentage = 1000;
  }


    // *********************** MODIFIERS *********************************************

    /// @notice verifies if message sender is an admin or secondary admin
    modifier onlyAdmin{
        if(!(PlatformSettings(platformSettingsContractAddress).hasRole(PlatformSettings(platformSettingsContractAddress).DEFAULT_ADMIN_ROLE(),msg.sender)||PlatformSettings(platformSettingsContractAddress).hasRole(PlatformSettings(platformSettingsContractAddress).SECONDARY_ADMIN_ROLE(),msg.sender))){
            revert InvalidRole(msg.sender, PlatformSettings(platformSettingsContractAddress).SECONDARY_ADMIN_ROLE());
        }
        _;
    }

    // *********************** VIEW FUNCTIONS *********************************************

    function version() public override pure returns (uint32){
        //version in format aaa.bbb.ccc => aaa*1E6+bbb*1E3+ccc;
        return uint32(1000000);
    }
    
    /// @notice gets NFT id of GameItem
    /// @param _itemId Id of MarketItem.
    function getTokenId(uint256 _itemId) public view returns(uint256){
        return idToMarketItem[_itemId].tokenId;
    }

    /// @notice gets price of GameItem
    /// @param _itemId Id of MarketItem.
    function getItemPrice(uint256 _itemId) public view returns(uint256){
        return idToMarketItem[_itemId].price;
    }

    /// @notice gets address of item seller
    /// @param _itemId Id of MarketItem.
    function getItemSeller(uint256 _itemId) public view returns(address){
        return idToMarketItem[_itemId].seller;
    }

    /// @notice gets address of item owner
    /// @param _itemId Id of MarketItem.
    function getItemOwner(uint256 _itemId) public view returns(address){
        return idToMarketItem[_itemId].owner;
    }
    
    /// @notice gets address of GameItem contract
    /// @param _itemId Id of MarketItem.
    function getItemNFTContract(uint256 _itemId) public view returns(address){
        return idToMarketItem[_itemId].nftContract;
    }

    /// @notice gets deadline of item for sale
    /// @param _itemId Id of MarketItem.
    function getItemDeadline(uint256 _itemId) public view returns(uint256){
        return idToMarketItem[_itemId].deadline;
    }

    /// @notice gets the full price of the item it depends by payer
    /// @param _itemId Id of MarketItem.
    function getItemFullPrice(uint256 _itemId) public view returns(uint256){
        if (idToMarketItem[_itemId].payer){
          return idToMarketItem[_itemId].price;
        } else {
          uint256 price = idToMarketItem[_itemId].price;
          uint256 marketPayment = (price * marketFee)/percentage;
          uint256 validatorPayment = (price * validatorFee)/percentage;
          uint256 itemCreatorPayment = (price * firstMinterFee)/percentage;
          return price + (marketPayment + validatorPayment + itemCreatorPayment);
        }
    }

    // *********************** FUNCTIONS *********************************************

    /// @notice Admin sets new marketFee
    function setMarketFee(uint256 _marketFee) public onlyAdmin{
        marketFee = _marketFee;
    }
    
    /// @notice Admin sets new validatorFee
    function setValidatorFee(uint256 _validatorFee) public onlyAdmin{
        validatorFee = _validatorFee;
    }

    /// @notice Admin sets new firstMinterFee
    function setFirstMinterFee(uint256 _firstMinterFee) public onlyAdmin{
        firstMinterFee = _firstMinterFee;
    }

    /// @notice Admin sets new itemCreateFee
    function setItemCreateFee(uint256 _itemCreateFee) public onlyAdmin{
        itemCreateFee = _itemCreateFee;
    }

    /// @notice Admin sets new percentage
    function setPercentage(uint256 _percentage) public onlyAdmin{
        percentage = _percentage;
    }

    /// @notice Admin sets new battlePassFee
    function setBattlePassFee(uint256 _battlePassFee) public onlyAdmin{
        battlePassFee = _battlePassFee;
    }


 

    /// @notice the user creates MarketItem and set gameItem for sale
    /// @dev Emits "MarketItemCreated" event. Requirements: price must be more or equal to floorPrice; msg.value must be equal to itemCreateFee; the signer must have BACKEND_ROLE
    /// @dev if _battlePassFlag is false then floorPrice must be more or equal to battlePassFee
    /// @dev calls transferFrom function from ERC721Upgradeable contract
    /// @param _tokenId Id of NFT in the gameItemContract
    /// @param _price The price of item
    /// @param _floorPrice Floor price calculation includes all costs related to the item placed on the marketplace.
    /// @param _payer The lever which controls if the price includes fee or it must be paid above
    /// @param _battlePassFlag Value that shows if the item was created with battlePass or not
    /// @param _saleDuration duration of the sale of the item(in unix time)
    /// @param _deadline date of expiring signature(in unix time)
    /// @param _signature The signature that verifies all the data above by BACKEND signer
    function createMarketItem(
        uint256 _tokenId,
        uint256 _price,
        uint256 _floorPrice,
        bool _payer,
        bool _battlePassFlag,
        uint256 _saleDuration,
        uint256 _deadline,
        bytes memory _signature
    ) public override payable {

        bytes32 __digest = _hashTypedDataV4(
            keccak256(
                abi.encode(
                    keccak256("CreateMarketItem(uint256 _tokenId,uint256 _price,uint256 _floorPrice,bool _payer,bool _battlePassFlag,uint256 _saleDuration,uint256 _deadline)"),
                    _tokenId,
                    _price,
                    _floorPrice,
                    _payer,
                    _battlePassFlag,
                    _saleDuration,
                    _deadline
                )
            )
        );
      
        address __signer = ECDSAUpgradeable.recover(__digest,_signature);

        if(!PlatformSettings(platformSettingsContractAddress).isBackendRole(__signer)){
            revert IncorrectSigner(__signer);
        }
        if(block.timestamp > _deadline){
            revert DeadlineExpired(_deadline, block.timestamp);
        }
        if(!_battlePassFlag && _floorPrice < battlePassFee){
            revert IncorrectFloorPrice(_floorPrice, battlePassFee);
        }

        if(_price < _floorPrice){
            revert IncorrectPrice(_price, _floorPrice);
        }
        
        _itemIds.increment();
        uint256 itemId = _itemIds.current();

        uint256 saleDeadline = block.timestamp + _saleDuration;
        
        {
            
            if(msg.value != itemCreateFee){
                revert IncorrectValue(msg.value, itemCreateFee);
            }

            address payable financialWallet = PlatformSettings(platformSettingsContractAddress).financialWallet(); 
        
            (bool success,) = financialWallet.call{value: msg.value}("");
            if(!success){
                revert UnsuccessfulPayment(address(this), financialWallet, msg.value);
            }

            
        }
        IERC721Upgradeable(gameItem).transferFrom(msg.sender, address(this), _tokenId);

        _createMarketItem(itemId, _tokenId, _price, _payer, _battlePassFlag, saleDeadline);

  }


    /// @notice the user unlist Item from sale
    /// @dev Requirements: the caller of this function must be the seller or the admin; the signer must have BACKEND_ROLE
    /// @dev calls transferFrom function from ERC721Upgradeable contract
    /// @param _itemId Id of MarketItem.
    /// @param _deadline date of expiring signature(in unix time)
    /// @param _signature The signature that verifies all the data above by BACKEND signer
    function unlistMarketItem(
        uint256 _itemId,
        uint256 _deadline,
        bytes memory _signature
    ) public override {
        bytes32 __digest = _hashTypedDataV4(
            keccak256(
                abi.encode(
                    keccak256("UnlistMarketItem(uint256 _itemId,uint256 _deadline)"),
                    _itemId,
                    _deadline
                )
            )
        );
    
        address __signer = ECDSAUpgradeable.recover(__digest,_signature);

        if(!PlatformSettings(platformSettingsContractAddress).isBackendRole(__signer)){
            revert IncorrectSigner(__signer);
        }
        if(block.timestamp > _deadline){
            revert DeadlineExpired(_deadline, block.timestamp);
        }
        if(
            msg.sender != idToMarketItem[_itemId].seller && 
            !PlatformSettings(platformSettingsContractAddress).hasRole(PlatformSettings(platformSettingsContractAddress).DEFAULT_ADMIN_ROLE(),msg.sender) && 
            !PlatformSettings(platformSettingsContractAddress).hasRole(PlatformSettings(platformSettingsContractAddress).SECONDARY_ADMIN_ROLE(), msg.sender)
        ){
            revert IncorrectCaller(msg.sender);
        }
        if(idToMarketItem[_itemId].sold == true){
            revert ItemSold();
        }
        uint256 tokenId = idToMarketItem[_itemId].tokenId;
        idToMarketItem[_itemId].owner = idToMarketItem[_itemId].seller;


        IERC721Upgradeable(gameItem).transferFrom(address(this), idToMarketItem[_itemId].seller , tokenId);
  }

    /// @notice the user buy the Item 
    /// @dev Emits "MarketItemSale" event. Requirements: the signer must have BACKEND_ROLE
    /// @dev calls _makeFeePayment function from Marketplace contract; calls _createMarketTransfer function from Marketplace contract
    /// @param _itemId Id of MarketItem.
    /// @param _deadline date of expiring signature(in unix time)
    /// @param _signature The signature that verifies all the data above by BACKEND signer
    function createMarketSale(
        uint256 _itemId,
        uint256 _deadline,
        bytes memory _signature
    ) public override payable {

        bytes32 __digest = _hashTypedDataV4(
            keccak256(
                abi.encode(
                    keccak256("createMarketSale(uint256 _itemId,uint256 _deadline)"),
                    _itemId,
                    _deadline
                )
            )
        );
      
        address __signer = ECDSAUpgradeable.recover(__digest,_signature);
        if(!PlatformSettings(platformSettingsContractAddress).isBackendRole(__signer)){
            revert IncorrectSigner(__signer);
        }
        if(block.timestamp > _deadline){
            revert DeadlineExpired(_deadline, block.timestamp);
        }
        MarketItem memory item = idToMarketItem[_itemId];
        uint256 tokenId = item.tokenId;
        uint256 price = item.price;
        bool battlePassFlag = item.battlePassFlag;
        if(block.timestamp > item.deadline){
            revert ItemDeadlineExpired(item.deadline, block.timestamp);
        }

        if(item.owner != address(this)){
            revert ItemSold();
        }
        address buyer = msg.sender;
        
        _makeFeePayment(item, tokenId, price, battlePassFlag);

        _createMarketTransfer(_itemId, buyer);

        emit MarketItemSale(
            gameItem, 
            _itemId, 
            buyer, 
            price
        );

    }
 
    /// @dev transfer gameItem from seller to buyer
    /// @dev calls transferFrom function from Marketplace contract; calls _createMarketTransfer function from Marketplace contract
    /// @param _itemId Id of MarketItem.
    /// @param _buyer The buyer's address.
    function _createMarketTransfer(
        uint256 _itemId,
        address _buyer
    ) internal virtual {
        MarketItem memory item = idToMarketItem[_itemId];
        uint256 tokenId = item.tokenId;

        IERC721Upgradeable(gameItem).transferFrom(address(this), msg.sender, tokenId);

        idToMarketItem[_itemId].owner = _buyer;
        idToMarketItem[_itemId].sold = true;
    }

    /// @dev buyer pays fee and price for the item
    /// @dev Requirements: msg.value must be equal to price if payer is true if else then msg.value must be equal to price + marketPayment + validatorPayment + itemCreatorPayment
    /// @dev calls transferFrom function from Marketplace contract; calls _createMarketTransfer function from Marketplace contract
    /// @dev _battlePassFlag is false then seller pays from price battlePassFee to the validator
    /// @param _item MarketItem.
    /// @param _tokenId Id of NFT in the gameItemContract
    /// @param _price The price of item
    /// @param _battlePassFlag Value that shows if the item was created with battlePass or not
    function _makeFeePayment(
        MarketItem memory _item,
        uint256 _tokenId,
        uint256 _price,
        bool _battlePassFlag
    ) internal virtual {
        
        address payable seller = _item.seller;


        address payable itemCreator = payable (IGameItem(gameItem).getItemCreator(_tokenId));
        address payable validator = payable (IGameItem(gameItem).getItemHacker(_tokenId));
        address payable financialWallet = PlatformSettings(platformSettingsContractAddress).financialWallet(); 
        
        {
            uint256 marketPayment = (_price * marketFee)/percentage;
            uint256 validatorPayment = (_price * validatorFee)/percentage;
            uint256 itemCreatorPayment = (_price * firstMinterFee)/percentage;
            if(_price < (marketPayment + validatorPayment + itemCreatorPayment)){
                revert IncorrectFeeDistribution();
            }
            uint256 sellerPayment = _price;

            
            if(_item.payer){
                sellerPayment = sellerPayment - (marketPayment + validatorPayment + itemCreatorPayment);
            }
            if(msg.value != sellerPayment + marketPayment + validatorPayment + itemCreatorPayment){
                revert IncorrectValue(msg.value, sellerPayment + marketPayment + validatorPayment + itemCreatorPayment); 
            }
            bool success;
            if(!_battlePassFlag){
                sellerPayment = sellerPayment - battlePassFee;
                (success,) = financialWallet.call{value: battlePassFee}("");
                if(!success){
                    revert UnsuccessfulPayment(address(this), financialWallet, battlePassFee);
                }
            }

            (success,) = seller.call{value: sellerPayment}("");
            if(!success){
                revert UnsuccessfulPayment(address(this), seller, sellerPayment);
            }
            (success,) = validator.call{value: validatorPayment}("");
            if(!success){
                revert UnsuccessfulPayment(address(this), validator, validatorPayment);
            }
            (success,) = financialWallet.call{value: marketPayment}("");
            if(!success){
                revert UnsuccessfulPayment(address(this), financialWallet, marketPayment);
            }
            (success,) = itemCreator.call{value: itemCreatorPayment}("");
            if(!success){
                revert UnsuccessfulPayment(address(this), itemCreator, itemCreatorPayment);
            }

            if(!_battlePassFlag){
                marketPayment += battlePassFee;
            }
            emit FeePaymentForSale(
                financialWallet,
                marketPayment,
                validator,
                validatorPayment,
                itemCreator,
                itemCreatorPayment,
                seller,
                sellerPayment
            );
        }
    }

    function _createMarketItem(
        uint256 _itemId,
        uint256 _tokenId,
        uint256 _price,
        bool _payer,
        bool _battlePassFlag,
        uint256 _saleDeadline
    ) internal virtual {
        
        idToMarketItem[_itemId] =  MarketItem(
            _itemId,
            gameItem,
            _tokenId,
            payable (msg.sender),
            address(this),
            _price,
            false,
            _payer,
            _battlePassFlag,
            _saleDeadline
        );

        emit MarketItemCreated(
            _itemId,
            gameItem,
            _tokenId,
            msg.sender,
            address(this),
            _price,
            false,
            _payer,
            _battlePassFlag,
            _saleDeadline,
            itemCreateFee
        );

    }


}
        

Contract ABI

[{"type":"error","name":"DeadlineExpired","inputs":[{"type":"uint256","name":"deadline","internalType":"uint256"},{"type":"uint256","name":"currentTimestamp","internalType":"uint256"}]},{"type":"error","name":"IncorrectCaller","inputs":[{"type":"address","name":"caller","internalType":"address"}]},{"type":"error","name":"IncorrectFeeDistribution","inputs":[]},{"type":"error","name":"IncorrectFloorPrice","inputs":[{"type":"uint256","name":"floorPrice","internalType":"uint256"},{"type":"uint256","name":"minValue","internalType":"uint256"}]},{"type":"error","name":"IncorrectPrice","inputs":[{"type":"uint256","name":"price","internalType":"uint256"},{"type":"uint256","name":"floorPrice","internalType":"uint256"}]},{"type":"error","name":"IncorrectSigner","inputs":[{"type":"address","name":"signer","internalType":"address"}]},{"type":"error","name":"IncorrectValue","inputs":[{"type":"uint256","name":"value","internalType":"uint256"},{"type":"uint256","name":"price","internalType":"uint256"}]},{"type":"error","name":"InvalidRole","inputs":[{"type":"address","name":"caller","internalType":"address"},{"type":"bytes32","name":"role","internalType":"bytes32"}]},{"type":"error","name":"ItemDeadlineExpired","inputs":[{"type":"uint256","name":"deadline","internalType":"uint256"},{"type":"uint256","name":"currentTimestamp","internalType":"uint256"}]},{"type":"error","name":"ItemSold","inputs":[]},{"type":"error","name":"UnsuccessfulPayment","inputs":[{"type":"address","name":"from","internalType":"address"},{"type":"address","name":"to","internalType":"address"},{"type":"uint256","name":"amount","internalType":"uint256"}]},{"type":"event","name":"FeePaymentForSale","inputs":[{"type":"address","name":"financialWallet","internalType":"address","indexed":false},{"type":"uint256","name":"marketPayment","internalType":"uint256","indexed":false},{"type":"address","name":"validator","internalType":"address","indexed":false},{"type":"uint256","name":"validatorPayment","internalType":"uint256","indexed":false},{"type":"address","name":"itemCreator","internalType":"address","indexed":false},{"type":"uint256","name":"itemCreatorPayment","internalType":"uint256","indexed":false},{"type":"address","name":"seller","internalType":"address","indexed":false},{"type":"uint256","name":"sellerPayment","internalType":"uint256","indexed":false}],"anonymous":false},{"type":"event","name":"MarketItemChangePrice","inputs":[{"type":"address","name":"nftContract","internalType":"address","indexed":true},{"type":"uint256","name":"itemId","internalType":"uint256","indexed":true},{"type":"uint256","name":"newPrice","internalType":"uint256","indexed":false}],"anonymous":false},{"type":"event","name":"MarketItemCreated","inputs":[{"type":"uint256","name":"itemId","internalType":"uint256","indexed":true},{"type":"address","name":"nftContract","internalType":"address","indexed":true},{"type":"uint256","name":"tokenId","internalType":"uint256","indexed":true},{"type":"address","name":"seller","internalType":"address","indexed":false},{"type":"address","name":"owner","internalType":"address","indexed":false},{"type":"uint256","name":"price","internalType":"uint256","indexed":false},{"type":"bool","name":"sold","internalType":"bool","indexed":false},{"type":"bool","name":"payer","internalType":"bool","indexed":false},{"type":"bool","name":"battlePassFlag","internalType":"bool","indexed":false},{"type":"uint256","name":"saleDeadline","internalType":"uint256","indexed":false},{"type":"uint256","name":"itemCreateFee","internalType":"uint256","indexed":false}],"anonymous":false},{"type":"event","name":"MarketItemSale","inputs":[{"type":"address","name":"nftContract","internalType":"address","indexed":true},{"type":"uint256","name":"itemId","internalType":"uint256","indexed":true},{"type":"address","name":"buyer","internalType":"address","indexed":false},{"type":"uint256","name":"price","internalType":"uint256","indexed":false}],"anonymous":false},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"battlePassFee","inputs":[]},{"type":"function","stateMutability":"payable","outputs":[],"name":"createMarketItem","inputs":[{"type":"uint256","name":"_tokenId","internalType":"uint256"},{"type":"uint256","name":"_price","internalType":"uint256"},{"type":"uint256","name":"_floorPrice","internalType":"uint256"},{"type":"bool","name":"_payer","internalType":"bool"},{"type":"bool","name":"_battlePassFlag","internalType":"bool"},{"type":"uint256","name":"_saleDuration","internalType":"uint256"},{"type":"uint256","name":"_deadline","internalType":"uint256"},{"type":"bytes","name":"_signature","internalType":"bytes"}]},{"type":"function","stateMutability":"payable","outputs":[],"name":"createMarketSale","inputs":[{"type":"uint256","name":"_itemId","internalType":"uint256"},{"type":"uint256","name":"_deadline","internalType":"uint256"},{"type":"bytes","name":"_signature","internalType":"bytes"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"firstMinterFee","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"address","name":"","internalType":"address"}],"name":"gameItem","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"getItemDeadline","inputs":[{"type":"uint256","name":"_itemId","internalType":"uint256"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"getItemFullPrice","inputs":[{"type":"uint256","name":"_itemId","internalType":"uint256"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"address","name":"","internalType":"address"}],"name":"getItemNFTContract","inputs":[{"type":"uint256","name":"_itemId","internalType":"uint256"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"address","name":"","internalType":"address"}],"name":"getItemOwner","inputs":[{"type":"uint256","name":"_itemId","internalType":"uint256"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"getItemPrice","inputs":[{"type":"uint256","name":"_itemId","internalType":"uint256"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"address","name":"","internalType":"address"}],"name":"getItemSeller","inputs":[{"type":"uint256","name":"_itemId","internalType":"uint256"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"getTokenId","inputs":[{"type":"uint256","name":"_itemId","internalType":"uint256"}]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"initialize","inputs":[{"type":"address","name":"_gameItem","internalType":"address"},{"type":"address","name":"_platformSettingsContractAddress","internalType":"address"},{"type":"address","name":"_validatorLicenseContract","internalType":"address"},{"type":"uint256","name":"_marketFee","internalType":"uint256"},{"type":"uint256","name":"_validatorFee","internalType":"uint256"},{"type":"uint256","name":"_firstMinterFee","internalType":"uint256"},{"type":"uint256","name":"_itemCreateFee","internalType":"uint256"},{"type":"uint256","name":"_battlePassFee","internalType":"uint256"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"itemCreateFee","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"marketFee","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"percentage","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"address","name":"","internalType":"address"}],"name":"platformSettingsContractAddress","inputs":[]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"setBattlePassFee","inputs":[{"type":"uint256","name":"_battlePassFee","internalType":"uint256"}]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"setFirstMinterFee","inputs":[{"type":"uint256","name":"_firstMinterFee","internalType":"uint256"}]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"setItemCreateFee","inputs":[{"type":"uint256","name":"_itemCreateFee","internalType":"uint256"}]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"setMarketFee","inputs":[{"type":"uint256","name":"_marketFee","internalType":"uint256"}]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"setPercentage","inputs":[{"type":"uint256","name":"_percentage","internalType":"uint256"}]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"setValidatorFee","inputs":[{"type":"uint256","name":"_validatorFee","internalType":"uint256"}]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"unlistMarketItem","inputs":[{"type":"uint256","name":"_itemId","internalType":"uint256"},{"type":"uint256","name":"_deadline","internalType":"uint256"},{"type":"bytes","name":"_signature","internalType":"bytes"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"validatorFee","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"address","name":"","internalType":"address"}],"name":"validatorLicenseContract","inputs":[]},{"type":"function","stateMutability":"pure","outputs":[{"type":"uint32","name":"","internalType":"uint32"}],"name":"version","inputs":[]}]
              

Contract Creation Code

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