organized_contracts/0d/0d0818ec33b9d8556445429fd64331c82bbd09c58fc973a84fd5a9d048c9d32a/contract.json

{
  "language": "Solidity",
  "sources": {
    "contracts/JigenGenesis.sol": {
      "content": "// SPDX-License-Identifier: MIT OR Apache-2.0\r\npragma solidity ^0.8.10;\r\nimport \"@openzeppelin/contracts/token/ERC721/extensions/ERC721Enumerable.sol\";\r\nimport \"@openzeppelin/contracts/access/Ownable.sol\";\r\nimport \"@openzeppelin/contracts/utils/Strings.sol\";\r\nimport \"operator-filter-registry/src/DefaultOperatorFilterer.sol\";\r\n\r\ncontract JigenGenesis is ERC721Enumerable, Ownable, DefaultOperatorFilterer {\r\n    using Strings for uint256;\r\n\r\n    uint256 public supply;\r\n    uint256 public maxTokens = 500;\r\n    uint256 public metalockLockPeriod = 28 days;\r\n    uint256 public redeemPrice = 0.03 ether;\r\n    uint256 public maxAmountOwner;\r\n    bool public isRedeemPeriod;\r\n    bool public isRevealed;\r\n    bool public isPaused = true;\r\n    bool public isPublicMint;\r\n    bool public isFrozenMetadata;\r\n    string hiddenUri;\r\n    string baseUri;\r\n\r\n    mapping(address => bool) public whitelisted;\r\n    mapping(address => bool) public hasMinted;\r\n    mapping(uint256 => bool) public isRedeemed;\r\n    mapping(uint256 => uint256) metalockStarted;\r\n    mapping(uint256 => uint256) metalockTotal;\r\n    mapping(address => uint256) public adminMint;\r\n\r\n    event TokenRedeemed(uint256 tokenId, address redeemer);\r\n    event MetalockStarted(uint256 tokenId);\r\n    event MetalockEnded(uint256 tokenId);\r\n    event TokenExpelled(uint256 tokenId);\r\n    event MetadataUpdate(uint256 _tokenId);\r\n    event BatchMetadataUpdate(uint256 _fromTokenId, uint256 _toTokenId);\r\n\r\n    modifier onlyUnpaused() {\r\n        require(!isPaused, \"Contract is paused\");\r\n        _;\r\n    }\r\n\r\n    constructor(\r\n        string memory name_,\r\n        string memory symbol_,\r\n        string memory _hiddenUri,\r\n        uint256 _maxAmountOwner\r\n    ) ERC721(name_, symbol_) {\r\n        hiddenUri = _hiddenUri;\r\n        maxAmountOwner = _maxAmountOwner;\r\n    }\r\n\r\n    //owner-restricted function\r\n    function addWhitelist(address[] memory whitelist) public onlyOwner {\r\n        for (uint256 i = 0; i < whitelist.length; ) {\r\n            whitelisted[whitelist[i]] = true;\r\n            unchecked {\r\n                i++;\r\n            }\r\n        }\r\n    }\r\n\r\n    function reveal(string memory _baseUri) public onlyOwner {\r\n        require(!isRevealed, \"Already revealed\");\r\n        baseUri = _baseUri;\r\n        isRevealed = true;\r\n        emit BatchMetadataUpdate(0, supply);\r\n    }\r\n\r\n    function startRedeemPeriod() public onlyOwner {\r\n        isRedeemPeriod = true;\r\n    }\r\n\r\n    function endRedeemPeriod(string memory _baseUri) public onlyOwner {\r\n        require(!isFrozenMetadata, \"Metadata is frozen\");\r\n        isRedeemPeriod = false;\r\n        baseUri = _baseUri;\r\n        emit BatchMetadataUpdate(0, supply);\r\n    }\r\n\r\n    function freezeMetadata() public onlyOwner {\r\n        isFrozenMetadata = true;\r\n    }\r\n\r\n    function changeUri(string memory _baseUri) public onlyOwner {\r\n        require(!isFrozenMetadata, \"Metadata is frozen\");\r\n        baseUri = _baseUri;\r\n        emit BatchMetadataUpdate(0, supply);\r\n    }\r\n\r\n    function togglePause() public onlyOwner {\r\n        isPaused = !isPaused;\r\n    }\r\n\r\n    function togglePublicMint() public onlyOwner {\r\n        isPublicMint = !isPublicMint;\r\n    }\r\n\r\n    function withdraw(address payable to) public onlyOwner {\r\n        to.transfer(address(this).balance);\r\n    }\r\n\r\n    function changeRedeemPrice(uint256 newPrice) public onlyOwner {\r\n        redeemPrice = newPrice;\r\n    }\r\n\r\n    function changeMetalockLockPeriod(uint256 newMetalockLockPeriod) public onlyOwner {\r\n        metalockLockPeriod = newMetalockLockPeriod;\r\n    }\r\n\r\n    function safeTransferMetalocked(\r\n        address from,\r\n        address to,\r\n        uint256 tokenId\r\n    ) public onlyOwner {\r\n        super._safeTransfer(from, to, tokenId, \"\");\r\n    }\r\n\r\n    //function for owner to mint\r\n    function ownerMint(uint256 amount) public onlyOwner returns (bool) {\r\n        uint256 adminMintStore = adminMint[msg.sender] + amount;\r\n        require(adminMintStore <= maxAmountOwner, \"Admin mint limit exceeded\");\r\n        require(supply < maxTokens, \"Maximum amount of tokens minted\");\r\n        adminMint[msg.sender] = adminMintStore;\r\n        for (uint i = 0; i < amount; i++) {\r\n            _mint(msg.sender, supply);\r\n            supply++;\r\n        }\r\n        return true;\r\n    }\r\n\r\n    //public functions\r\n    function mint() public returns (bool) {\r\n        require(!isPaused, \"Contract is paused\");\r\n        require(supply < maxTokens, \"Maximum amount of tokens minted\");\r\n        require(!hasMinted[msg.sender], \"One mint per address\");\r\n\r\n        if (!isPublicMint) {\r\n            require(\r\n                whitelisted[msg.sender],\r\n                \"Function restricted to whitelisted accounts\"\r\n            );\r\n        }\r\n\r\n        hasMinted[msg.sender] = true;\r\n        _mint(msg.sender, supply);\r\n        supply++;\r\n\r\n        return true;\r\n    }\r\n\r\n    function toggleMetalock(uint256 tokenId) public onlyUnpaused {\r\n        require(ownerOf(tokenId) == msg.sender, \"Not owner of token\");\r\n        if (metalockStarted[tokenId] == 0) {\r\n            metalockStarted[tokenId] = block.timestamp;\r\n            emit MetalockStarted(tokenId);\r\n        } else {\r\n            metalockTotal[tokenId] +=\r\n                block.timestamp -\r\n                metalockStarted[tokenId];\r\n            metalockStarted[tokenId] = 0;\r\n            emit MetalockEnded(tokenId);\r\n        }\r\n    }\r\n\r\n    function expel(uint256 tokenId) public onlyOwner {\r\n        require(metalockStarted[tokenId] != 0, \"Token not metalocked\");\r\n        metalockTotal[tokenId] += block.timestamp - metalockStarted[tokenId];\r\n        metalockStarted[tokenId] = 0;\r\n        emit TokenExpelled(tokenId);\r\n    }\r\n\r\n    function redeem(uint256 tokenId) public payable onlyUnpaused {\r\n        require(isRedeemPeriod, \"Can't redeem right now\");\r\n        require(\r\n            block.timestamp - metalockStarted[tokenId] >= metalockLockPeriod,\r\n            \"Metalock period is not over\"\r\n        );\r\n        require(\r\n            ownerOf(tokenId) == msg.sender,\r\n            \"Function restricted to token owner\"\r\n        );\r\n        require(metalockStarted[tokenId] != 0, \"Token not metalocked\");\r\n        require(!isRedeemed[tokenId], \"Token already redeemed\");\r\n        require(msg.value == redeemPrice, \"Insufficient ETH provided\");\r\n        isRedeemed[tokenId] = true;\r\n        emit TokenRedeemed(tokenId, msg.sender);\r\n        emit MetadataUpdate(tokenId);\r\n    }\r\n\r\n    modifier isTransferable(uint256 tokenId) {\r\n        require(metalockStarted[tokenId] == 0, \"Token currently metalocked\");\r\n        _;\r\n    }\r\n\r\n    function transferFrom(\r\n        address from,\r\n        address to,\r\n        uint256 tokenId\r\n    ) public override(ERC721, IERC721) isTransferable(tokenId) onlyAllowedOperator(from){\r\n        super.transferFrom(from, to, tokenId);\r\n    }\r\n\r\n    function safeTransferFrom(\r\n        address from,\r\n        address to,\r\n        uint256 tokenId\r\n    ) public override(ERC721, IERC721) isTransferable(tokenId) onlyAllowedOperator(from){\r\n        super.safeTransferFrom(from, to, tokenId);\r\n    }\r\n\r\n    function safeTransferFrom(\r\n        address from,\r\n        address to,\r\n        uint256 tokenId,\r\n        bytes memory data\r\n    ) public override(ERC721, IERC721) isTransferable(tokenId) onlyAllowedOperator(from){\r\n        super.safeTransferFrom(from, to, tokenId, data);\r\n    }\r\n\r\n    function setApprovalForAll(address operator, bool approved) public override(ERC721, IERC721) onlyAllowedOperatorApproval(operator) {\r\n        super.setApprovalForAll(operator, approved);\r\n    }\r\n\r\n    function approve(address operator, uint256 tokenId) public override(ERC721, IERC721) onlyAllowedOperatorApproval(operator) {\r\n        super.approve(operator, tokenId);\r\n    }\r\n\r\n    //view functions\r\n    function tokenURI(uint256 tokenId)\r\n        public\r\n        view\r\n        override\r\n        returns (string memory)\r\n    {\r\n        require(_exists(tokenId), \"URI query for nonexistent token\");\r\n        //revealed\r\n        if (isRevealed) {\r\n            return _tokenURI(tokenId);\r\n            //before reveal\r\n        } else {\r\n            return hiddenUri;\r\n        }\r\n    }\r\n\r\n    function getTokensOfAddress(address account)\r\n        public\r\n        view\r\n        returns (uint256[] memory)\r\n    {\r\n        uint256 balance = balanceOf(account);\r\n        uint256[] memory ids = new uint256[](balance);\r\n        for (uint256 i = 0; i < balance; i++) {\r\n            ids[i] = tokenOfOwnerByIndex(account, i);\r\n        }\r\n        return ids;\r\n    }\r\n\r\n    function metalockPeriod(uint256 tokenId)\r\n        external\r\n        view\r\n        returns (\r\n            bool metalock,\r\n            uint256 current,\r\n            uint256 total\r\n        )\r\n    {\r\n        uint256 start = metalockStarted[tokenId];\r\n        if (start != 0) {\r\n            metalock = true;\r\n            current = block.timestamp - start;\r\n        }\r\n        total = current + metalockTotal[tokenId];\r\n    }\r\n\r\n    //internals\r\n    function _tokenURI(uint256 tokenId) internal view returns (string memory) {\r\n        //unlocked redeemed\r\n        if (isRedeemed[tokenId] && !isRedeemPeriod) {\r\n            return\r\n                string(\r\n                    abi.encodePacked(baseUri, \"r\", tokenId.toString(), \".json\")\r\n                );\r\n            //censored redeemed\r\n        } else if (isRedeemed[tokenId]) {\r\n            return\r\n                string(\r\n                    abi.encodePacked(baseUri, \"c\", tokenId.toString(), \".json\")\r\n                );\r\n            //revealed\r\n        } else {\r\n            return\r\n                string(abi.encodePacked(baseUri, tokenId.toString(), \".json\"));\r\n        }\r\n    }\r\n}\r\n"
    },
    "@openzeppelin/contracts/token/ERC721/extensions/ERC721Enumerable.sol": {
      "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.8.0) (token/ERC721/extensions/ERC721Enumerable.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../ERC721.sol\";\nimport \"./IERC721Enumerable.sol\";\n\n/**\n * @dev This implements an optional extension of {ERC721} defined in the EIP that adds\n * enumerability of all the token ids in the contract as well as all token ids owned by each\n * account.\n */\nabstract contract ERC721Enumerable is ERC721, IERC721Enumerable {\n    // Mapping from owner to list of owned token IDs\n    mapping(address => mapping(uint256 => uint256)) private _ownedTokens;\n\n    // Mapping from token ID to index of the owner tokens list\n    mapping(uint256 => uint256) private _ownedTokensIndex;\n\n    // Array with all token ids, used for enumeration\n    uint256[] private _allTokens;\n\n    // Mapping from token id to position in the allTokens array\n    mapping(uint256 => uint256) private _allTokensIndex;\n\n    /**\n     * @dev See {IERC165-supportsInterface}.\n     */\n    function supportsInterface(bytes4 interfaceId) public view virtual override(IERC165, ERC721) returns (bool) {\n        return interfaceId == type(IERC721Enumerable).interfaceId || super.supportsInterface(interfaceId);\n    }\n\n    /**\n     * @dev See {IERC721Enumerable-tokenOfOwnerByIndex}.\n     */\n    function tokenOfOwnerByIndex(address owner, uint256 index) public view virtual override returns (uint256) {\n        require(index < ERC721.balanceOf(owner), \"ERC721Enumerable: owner index out of bounds\");\n        return _ownedTokens[owner][index];\n    }\n\n    /**\n     * @dev See {IERC721Enumerable-totalSupply}.\n     */\n    function totalSupply() public view virtual override returns (uint256) {\n        return _allTokens.length;\n    }\n\n    /**\n     * @dev See {IERC721Enumerable-tokenByIndex}.\n     */\n    function tokenByIndex(uint256 index) public view virtual override returns (uint256) {\n        require(index < ERC721Enumerable.totalSupply(), \"ERC721Enumerable: global index out of bounds\");\n        return _allTokens[index];\n    }\n\n    /**\n     * @dev See {ERC721-_beforeTokenTransfer}.\n     */\n    function _beforeTokenTransfer(\n        address from,\n        address to,\n        uint256 firstTokenId,\n        uint256 batchSize\n    ) internal virtual override {\n        super._beforeTokenTransfer(from, to, firstTokenId, batchSize);\n\n        if (batchSize > 1) {\n            // Will only trigger during construction. Batch transferring (minting) is not available afterwards.\n            revert(\"ERC721Enumerable: consecutive transfers not supported\");\n        }\n\n        uint256 tokenId = firstTokenId;\n\n        if (from == address(0)) {\n            _addTokenToAllTokensEnumeration(tokenId);\n        } else if (from != to) {\n            _removeTokenFromOwnerEnumeration(from, tokenId);\n        }\n        if (to == address(0)) {\n            _removeTokenFromAllTokensEnumeration(tokenId);\n        } else if (to != from) {\n            _addTokenToOwnerEnumeration(to, tokenId);\n        }\n    }\n\n    /**\n     * @dev Private function to add a token to this extension's ownership-tracking data structures.\n     * @param to address representing the new owner of the given token ID\n     * @param tokenId uint256 ID of the token to be added to the tokens list of the given address\n     */\n    function _addTokenToOwnerEnumeration(address to, uint256 tokenId) private {\n        uint256 length = ERC721.balanceOf(to);\n        _ownedTokens[to][length] = tokenId;\n        _ownedTokensIndex[tokenId] = length;\n    }\n\n    /**\n     * @dev Private function to add a token to this extension's token tracking data structures.\n     * @param tokenId uint256 ID of the token to be added to the tokens list\n     */\n    function _addTokenToAllTokensEnumeration(uint256 tokenId) private {\n        _allTokensIndex[tokenId] = _allTokens.length;\n        _allTokens.push(tokenId);\n    }\n\n    /**\n     * @dev Private function to remove a token from this extension's ownership-tracking data structures. Note that\n     * while the token is not assigned a new owner, the `_ownedTokensIndex` mapping is _not_ updated: this allows for\n     * gas optimizations e.g. when performing a transfer operation (avoiding double writes).\n     * This has O(1) time complexity, but alters the order of the _ownedTokens array.\n     * @param from address representing the previous owner of the given token ID\n     * @param tokenId uint256 ID of the token to be removed from the tokens list of the given address\n     */\n    function _removeTokenFromOwnerEnumeration(address from, uint256 tokenId) private {\n        // To prevent a gap in from's tokens array, we store the last token in the index of the token to delete, and\n        // then delete the last slot (swap and pop).\n\n        uint256 lastTokenIndex = ERC721.balanceOf(from) - 1;\n        uint256 tokenIndex = _ownedTokensIndex[tokenId];\n\n        // When the token to delete is the last token, the swap operation is unnecessary\n        if (tokenIndex != lastTokenIndex) {\n            uint256 lastTokenId = _ownedTokens[from][lastTokenIndex];\n\n            _ownedTokens[from][tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token\n            _ownedTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index\n        }\n\n        // This also deletes the contents at the last position of the array\n        delete _ownedTokensIndex[tokenId];\n        delete _ownedTokens[from][lastTokenIndex];\n    }\n\n    /**\n     * @dev Private function to remove a token from this extension's token tracking data structures.\n     * This has O(1) time complexity, but alters the order of the _allTokens array.\n     * @param tokenId uint256 ID of the token to be removed from the tokens list\n     */\n    function _removeTokenFromAllTokensEnumeration(uint256 tokenId) private {\n        // To prevent a gap in the tokens array, we store the last token in the index of the token to delete, and\n        // then delete the last slot (swap and pop).\n\n        uint256 lastTokenIndex = _allTokens.length - 1;\n        uint256 tokenIndex = _allTokensIndex[tokenId];\n\n        // When the token to delete is the last token, the swap operation is unnecessary. However, since this occurs so\n        // rarely (when the last minted token is burnt) that we still do the swap here to avoid the gas cost of adding\n        // an 'if' statement (like in _removeTokenFromOwnerEnumeration)\n        uint256 lastTokenId = _allTokens[lastTokenIndex];\n\n        _allTokens[tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token\n        _allTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index\n\n        // This also deletes the contents at the last position of the array\n        delete _allTokensIndex[tokenId];\n        _allTokens.pop();\n    }\n}\n"
    },
    "@openzeppelin/contracts/access/Ownable.sol": {
      "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.7.0) (access/Ownable.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../utils/Context.sol\";\n\n/**\n * @dev Contract module which provides a basic access control mechanism, where\n * there is an account (an owner) that can be granted exclusive access to\n * specific functions.\n *\n * By default, the owner account will be the one that deploys the contract. This\n * can later be changed with {transferOwnership}.\n *\n * This module is used through inheritance. It will make available the modifier\n * `onlyOwner`, which can be applied to your functions to restrict their use to\n * the owner.\n */\nabstract contract Ownable is Context {\n    address private _owner;\n\n    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);\n\n    /**\n     * @dev Initializes the contract setting the deployer as the initial owner.\n     */\n    constructor() {\n        _transferOwnership(_msgSender());\n    }\n\n    /**\n     * @dev Throws if called by any account other than the owner.\n     */\n    modifier onlyOwner() {\n        _checkOwner();\n        _;\n    }\n\n    /**\n     * @dev Returns the address of the current owner.\n     */\n    function owner() public view virtual returns (address) {\n        return _owner;\n    }\n\n    /**\n     * @dev Throws if the sender is not the owner.\n     */\n    function _checkOwner() internal view virtual {\n        require(owner() == _msgSender(), \"Ownable: caller is not the owner\");\n    }\n\n    /**\n     * @dev Leaves the contract without owner. It will not be possible to call\n     * `onlyOwner` functions anymore. Can only be called by the current owner.\n     *\n     * NOTE: Renouncing ownership will leave the contract without an owner,\n     * thereby removing any functionality that is only available to the owner.\n     */\n    function renounceOwnership() public virtual onlyOwner {\n        _transferOwnership(address(0));\n    }\n\n    /**\n     * @dev Transfers ownership of the contract to a new account (`newOwner`).\n     * Can only be called by the current owner.\n     */\n    function transferOwnership(address newOwner) public virtual onlyOwner {\n        require(newOwner != address(0), \"Ownable: new owner is the zero address\");\n        _transferOwnership(newOwner);\n    }\n\n    /**\n     * @dev Transfers ownership of the contract to a new account (`newOwner`).\n     * Internal function without access restriction.\n     */\n    function _transferOwnership(address newOwner) internal virtual {\n        address oldOwner = _owner;\n        _owner = newOwner;\n        emit OwnershipTransferred(oldOwner, newOwner);\n    }\n}\n"
    },
    "@openzeppelin/contracts/utils/Strings.sol": {
      "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.8.0) (utils/Strings.sol)\n\npragma solidity ^0.8.0;\n\nimport \"./math/Math.sol\";\n\n/**\n * @dev String operations.\n */\nlibrary Strings {\n    bytes16 private constant _SYMBOLS = \"0123456789abcdef\";\n    uint8 private constant _ADDRESS_LENGTH = 20;\n\n    /**\n     * @dev Converts a `uint256` to its ASCII `string` decimal representation.\n     */\n    function toString(uint256 value) internal pure returns (string memory) {\n        unchecked {\n            uint256 length = Math.log10(value) + 1;\n            string memory buffer = new string(length);\n            uint256 ptr;\n            /// @solidity memory-safe-assembly\n            assembly {\n                ptr := add(buffer, add(32, length))\n            }\n            while (true) {\n                ptr--;\n                /// @solidity memory-safe-assembly\n                assembly {\n                    mstore8(ptr, byte(mod(value, 10), _SYMBOLS))\n                }\n                value /= 10;\n                if (value == 0) break;\n            }\n            return buffer;\n        }\n    }\n\n    /**\n     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.\n     */\n    function toHexString(uint256 value) internal pure returns (string memory) {\n        unchecked {\n            return toHexString(value, Math.log256(value) + 1);\n        }\n    }\n\n    /**\n     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.\n     */\n    function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {\n        bytes memory buffer = new bytes(2 * length + 2);\n        buffer[0] = \"0\";\n        buffer[1] = \"x\";\n        for (uint256 i = 2 * length + 1; i > 1; --i) {\n            buffer[i] = _SYMBOLS[value & 0xf];\n            value >>= 4;\n        }\n        require(value == 0, \"Strings: hex length insufficient\");\n        return string(buffer);\n    }\n\n    /**\n     * @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal representation.\n     */\n    function toHexString(address addr) internal pure returns (string memory) {\n        return toHexString(uint256(uint160(addr)), _ADDRESS_LENGTH);\n    }\n}\n"
    },
    "operator-filter-registry/src/DefaultOperatorFilterer.sol": {
      "content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.13;\n\nimport {OperatorFilterer} from \"./OperatorFilterer.sol\";\nimport {CANONICAL_CORI_SUBSCRIPTION} from \"./lib/Constants.sol\";\n/**\n * @title  DefaultOperatorFilterer\n * @notice Inherits from OperatorFilterer and automatically subscribes to the default OpenSea subscription.\n * @dev    Please note that if your token contract does not provide an owner with EIP-173, it must provide\n *         administration methods on the contract itself to interact with the registry otherwise the subscription\n *         will be locked to the options set during construction.\n */\n\nabstract contract DefaultOperatorFilterer is OperatorFilterer {\n    /// @dev The constructor that is called when the contract is being deployed.\n    constructor() OperatorFilterer(CANONICAL_CORI_SUBSCRIPTION, true) {}\n}\n"
    },
    "@openzeppelin/contracts/token/ERC721/ERC721.sol": {
      "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.8.0) (token/ERC721/ERC721.sol)\n\npragma solidity ^0.8.0;\n\nimport \"./IERC721.sol\";\nimport \"./IERC721Receiver.sol\";\nimport \"./extensions/IERC721Metadata.sol\";\nimport \"../../utils/Address.sol\";\nimport \"../../utils/Context.sol\";\nimport \"../../utils/Strings.sol\";\nimport \"../../utils/introspection/ERC165.sol\";\n\n/**\n * @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including\n * the Metadata extension, but not including the Enumerable extension, which is available separately as\n * {ERC721Enumerable}.\n */\ncontract ERC721 is Context, ERC165, IERC721, IERC721Metadata {\n    using Address for address;\n    using Strings for uint256;\n\n    // Token name\n    string private _name;\n\n    // Token symbol\n    string private _symbol;\n\n    // Mapping from token ID to owner address\n    mapping(uint256 => address) private _owners;\n\n    // Mapping owner address to token count\n    mapping(address => uint256) private _balances;\n\n    // Mapping from token ID to approved address\n    mapping(uint256 => address) private _tokenApprovals;\n\n    // Mapping from owner to operator approvals\n    mapping(address => mapping(address => bool)) private _operatorApprovals;\n\n    /**\n     * @dev Initializes the contract by setting a `name` and a `symbol` to the token collection.\n     */\n    constructor(string memory name_, string memory symbol_) {\n        _name = name_;\n        _symbol = symbol_;\n    }\n\n    /**\n     * @dev See {IERC165-supportsInterface}.\n     */\n    function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) {\n        return\n            interfaceId == type(IERC721).interfaceId ||\n            interfaceId == type(IERC721Metadata).interfaceId ||\n            super.supportsInterface(interfaceId);\n    }\n\n    /**\n     * @dev See {IERC721-balanceOf}.\n     */\n    function balanceOf(address owner) public view virtual override returns (uint256) {\n        require(owner != address(0), \"ERC721: address zero is not a valid owner\");\n        return _balances[owner];\n    }\n\n    /**\n     * @dev See {IERC721-ownerOf}.\n     */\n    function ownerOf(uint256 tokenId) public view virtual override returns (address) {\n        address owner = _ownerOf(tokenId);\n        require(owner != address(0), \"ERC721: invalid token ID\");\n        return owner;\n    }\n\n    /**\n     * @dev See {IERC721Metadata-name}.\n     */\n    function name() public view virtual override returns (string memory) {\n        return _name;\n    }\n\n    /**\n     * @dev See {IERC721Metadata-symbol}.\n     */\n    function symbol() public view virtual override returns (string memory) {\n        return _symbol;\n    }\n\n    /**\n     * @dev See {IERC721Metadata-tokenURI}.\n     */\n    function tokenURI(uint256 tokenId) public view virtual override returns (string memory) {\n        _requireMinted(tokenId);\n\n        string memory baseURI = _baseURI();\n        return bytes(baseURI).length > 0 ? string(abi.encodePacked(baseURI, tokenId.toString())) : \"\";\n    }\n\n    /**\n     * @dev Base URI for computing {tokenURI}. If set, the resulting URI for each\n     * token will be the concatenation of the `baseURI` and the `tokenId`. Empty\n     * by default, can be overridden in child contracts.\n     */\n    function _baseURI() internal view virtual returns (string memory) {\n        return \"\";\n    }\n\n    /**\n     * @dev See {IERC721-approve}.\n     */\n    function approve(address to, uint256 tokenId) public virtual override {\n        address owner = ERC721.ownerOf(tokenId);\n        require(to != owner, \"ERC721: approval to current owner\");\n\n        require(\n            _msgSender() == owner || isApprovedForAll(owner, _msgSender()),\n            \"ERC721: approve caller is not token owner or approved for all\"\n        );\n\n        _approve(to, tokenId);\n    }\n\n    /**\n     * @dev See {IERC721-getApproved}.\n     */\n    function getApproved(uint256 tokenId) public view virtual override returns (address) {\n        _requireMinted(tokenId);\n\n        return _tokenApprovals[tokenId];\n    }\n\n    /**\n     * @dev See {IERC721-setApprovalForAll}.\n     */\n    function setApprovalForAll(address operator, bool approved) public virtual override {\n        _setApprovalForAll(_msgSender(), operator, approved);\n    }\n\n    /**\n     * @dev See {IERC721-isApprovedForAll}.\n     */\n    function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) {\n        return _operatorApprovals[owner][operator];\n    }\n\n    /**\n     * @dev See {IERC721-transferFrom}.\n     */\n    function transferFrom(\n        address from,\n        address to,\n        uint256 tokenId\n    ) public virtual override {\n        //solhint-disable-next-line max-line-length\n        require(_isApprovedOrOwner(_msgSender(), tokenId), \"ERC721: caller is not token owner or approved\");\n\n        _transfer(from, to, tokenId);\n    }\n\n    /**\n     * @dev See {IERC721-safeTransferFrom}.\n     */\n    function safeTransferFrom(\n        address from,\n        address to,\n        uint256 tokenId\n    ) public virtual override {\n        safeTransferFrom(from, to, tokenId, \"\");\n    }\n\n    /**\n     * @dev See {IERC721-safeTransferFrom}.\n     */\n    function safeTransferFrom(\n        address from,\n        address to,\n        uint256 tokenId,\n        bytes memory data\n    ) public virtual override {\n        require(_isApprovedOrOwner(_msgSender(), tokenId), \"ERC721: caller is not token owner or approved\");\n        _safeTransfer(from, to, tokenId, data);\n    }\n\n    /**\n     * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients\n     * are aware of the ERC721 protocol to prevent tokens from being forever locked.\n     *\n     * `data` is additional data, it has no specified format and it is sent in call to `to`.\n     *\n     * This internal function is equivalent to {safeTransferFrom}, and can be used to e.g.\n     * implement alternative mechanisms to perform token transfer, such as signature-based.\n     *\n     * Requirements:\n     *\n     * - `from` cannot be the zero address.\n     * - `to` cannot be the zero address.\n     * - `tokenId` token must exist and be owned by `from`.\n     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\n     *\n     * Emits a {Transfer} event.\n     */\n    function _safeTransfer(\n        address from,\n        address to,\n        uint256 tokenId,\n        bytes memory data\n    ) internal virtual {\n        _transfer(from, to, tokenId);\n        require(_checkOnERC721Received(from, to, tokenId, data), \"ERC721: transfer to non ERC721Receiver implementer\");\n    }\n\n    /**\n     * @dev Returns the owner of the `tokenId`. Does NOT revert if token doesn't exist\n     */\n    function _ownerOf(uint256 tokenId) internal view virtual returns (address) {\n        return _owners[tokenId];\n    }\n\n    /**\n     * @dev Returns whether `tokenId` exists.\n     *\n     * Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.\n     *\n     * Tokens start existing when they are minted (`_mint`),\n     * and stop existing when they are burned (`_burn`).\n     */\n    function _exists(uint256 tokenId) internal view virtual returns (bool) {\n        return _ownerOf(tokenId) != address(0);\n    }\n\n    /**\n     * @dev Returns whether `spender` is allowed to manage `tokenId`.\n     *\n     * Requirements:\n     *\n     * - `tokenId` must exist.\n     */\n    function _isApprovedOrOwner(address spender, uint256 tokenId) internal view virtual returns (bool) {\n        address owner = ERC721.ownerOf(tokenId);\n        return (spender == owner || isApprovedForAll(owner, spender) || getApproved(tokenId) == spender);\n    }\n\n    /**\n     * @dev Safely mints `tokenId` and transfers it to `to`.\n     *\n     * Requirements:\n     *\n     * - `tokenId` must not exist.\n     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\n     *\n     * Emits a {Transfer} event.\n     */\n    function _safeMint(address to, uint256 tokenId) internal virtual {\n        _safeMint(to, tokenId, \"\");\n    }\n\n    /**\n     * @dev Same as {xref-ERC721-_safeMint-address-uint256-}[`_safeMint`], with an additional `data` parameter which is\n     * forwarded in {IERC721Receiver-onERC721Received} to contract recipients.\n     */\n    function _safeMint(\n        address to,\n        uint256 tokenId,\n        bytes memory data\n    ) internal virtual {\n        _mint(to, tokenId);\n        require(\n            _checkOnERC721Received(address(0), to, tokenId, data),\n            \"ERC721: transfer to non ERC721Receiver implementer\"\n        );\n    }\n\n    /**\n     * @dev Mints `tokenId` and transfers it to `to`.\n     *\n     * WARNING: Usage of this method is discouraged, use {_safeMint} whenever possible\n     *\n     * Requirements:\n     *\n     * - `tokenId` must not exist.\n     * - `to` cannot be the zero address.\n     *\n     * Emits a {Transfer} event.\n     */\n    function _mint(address to, uint256 tokenId) internal virtual {\n        require(to != address(0), \"ERC721: mint to the zero address\");\n        require(!_exists(tokenId), \"ERC721: token already minted\");\n\n        _beforeTokenTransfer(address(0), to, tokenId, 1);\n\n        // Check that tokenId was not minted by `_beforeTokenTransfer` hook\n        require(!_exists(tokenId), \"ERC721: token already minted\");\n\n        unchecked {\n            // Will not overflow unless all 2**256 token ids are minted to the same owner.\n            // Given that tokens are minted one by one, it is impossible in practice that\n            // this ever happens. Might change if we allow batch minting.\n            // The ERC fails to describe this case.\n            _balances[to] += 1;\n        }\n\n        _owners[tokenId] = to;\n\n        emit Transfer(address(0), to, tokenId);\n\n        _afterTokenTransfer(address(0), to, tokenId, 1);\n    }\n\n    /**\n     * @dev Destroys `tokenId`.\n     * The approval is cleared when the token is burned.\n     * This is an internal function that does not check if the sender is authorized to operate on the token.\n     *\n     * Requirements:\n     *\n     * - `tokenId` must exist.\n     *\n     * Emits a {Transfer} event.\n     */\n    function _burn(uint256 tokenId) internal virtual {\n        address owner = ERC721.ownerOf(tokenId);\n\n        _beforeTokenTransfer(owner, address(0), tokenId, 1);\n\n        // Update ownership in case tokenId was transferred by `_beforeTokenTransfer` hook\n        owner = ERC721.ownerOf(tokenId);\n\n        // Clear approvals\n        delete _tokenApprovals[tokenId];\n\n        unchecked {\n            // Cannot overflow, as that would require more tokens to be burned/transferred\n            // out than the owner initially received through minting and transferring in.\n            _balances[owner] -= 1;\n        }\n        delete _owners[tokenId];\n\n        emit Transfer(owner, address(0), tokenId);\n\n        _afterTokenTransfer(owner, address(0), tokenId, 1);\n    }\n\n    /**\n     * @dev Transfers `tokenId` from `from` to `to`.\n     *  As opposed to {transferFrom}, this imposes no restrictions on msg.sender.\n     *\n     * Requirements:\n     *\n     * - `to` cannot be the zero address.\n     * - `tokenId` token must be owned by `from`.\n     *\n     * Emits a {Transfer} event.\n     */\n    function _transfer(\n        address from,\n        address to,\n        uint256 tokenId\n    ) internal virtual {\n        require(ERC721.ownerOf(tokenId) == from, \"ERC721: transfer from incorrect owner\");\n        require(to != address(0), \"ERC721: transfer to the zero address\");\n\n        _beforeTokenTransfer(from, to, tokenId, 1);\n\n        // Check that tokenId was not transferred by `_beforeTokenTransfer` hook\n        require(ERC721.ownerOf(tokenId) == from, \"ERC721: transfer from incorrect owner\");\n\n        // Clear approvals from the previous owner\n        delete _tokenApprovals[tokenId];\n\n        unchecked {\n            // `_balances[from]` cannot overflow for the same reason as described in `_burn`:\n            // `from`'s balance is the number of token held, which is at least one before the current\n            // transfer.\n            // `_balances[to]` could overflow in the conditions described in `_mint`. That would require\n            // all 2**256 token ids to be minted, which in practice is impossible.\n            _balances[from] -= 1;\n            _balances[to] += 1;\n        }\n        _owners[tokenId] = to;\n\n        emit Transfer(from, to, tokenId);\n\n        _afterTokenTransfer(from, to, tokenId, 1);\n    }\n\n    /**\n     * @dev Approve `to` to operate on `tokenId`\n     *\n     * Emits an {Approval} event.\n     */\n    function _approve(address to, uint256 tokenId) internal virtual {\n        _tokenApprovals[tokenId] = to;\n        emit Approval(ERC721.ownerOf(tokenId), to, tokenId);\n    }\n\n    /**\n     * @dev Approve `operator` to operate on all of `owner` tokens\n     *\n     * Emits an {ApprovalForAll} event.\n     */\n    function _setApprovalForAll(\n        address owner,\n        address operator,\n        bool approved\n    ) internal virtual {\n        require(owner != operator, \"ERC721: approve to caller\");\n        _operatorApprovals[owner][operator] = approved;\n        emit ApprovalForAll(owner, operator, approved);\n    }\n\n    /**\n     * @dev Reverts if the `tokenId` has not been minted yet.\n     */\n    function _requireMinted(uint256 tokenId) internal view virtual {\n        require(_exists(tokenId), \"ERC721: invalid token ID\");\n    }\n\n    /**\n     * @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address.\n     * The call is not executed if the target address is not a contract.\n     *\n     * @param from address representing the previous owner of the given token ID\n     * @param to target address that will receive the tokens\n     * @param tokenId uint256 ID of the token to be transferred\n     * @param data bytes optional data to send along with the call\n     * @return bool whether the call correctly returned the expected magic value\n     */\n    function _checkOnERC721Received(\n        address from,\n        address to,\n        uint256 tokenId,\n        bytes memory data\n    ) private returns (bool) {\n        if (to.isContract()) {\n            try IERC721Receiver(to).onERC721Received(_msgSender(), from, tokenId, data) returns (bytes4 retval) {\n                return retval == IERC721Receiver.onERC721Received.selector;\n            } catch (bytes memory reason) {\n                if (reason.length == 0) {\n                    revert(\"ERC721: transfer to non ERC721Receiver implementer\");\n                } else {\n                    /// @solidity memory-safe-assembly\n                    assembly {\n                        revert(add(32, reason), mload(reason))\n                    }\n                }\n            }\n        } else {\n            return true;\n        }\n    }\n\n    /**\n     * @dev Hook that is called before any token transfer. This includes minting and burning. If {ERC721Consecutive} is\n     * used, the hook may be called as part of a consecutive (batch) mint, as indicated by `batchSize` greater than 1.\n     *\n     * Calling conditions:\n     *\n     * - When `from` and `to` are both non-zero, ``from``'s tokens will be transferred to `to`.\n     * - When `from` is zero, the tokens will be minted for `to`.\n     * - When `to` is zero, ``from``'s tokens will be burned.\n     * - `from` and `to` are never both zero.\n     * - `batchSize` is non-zero.\n     *\n     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].\n     */\n    function _beforeTokenTransfer(\n        address from,\n        address to,\n        uint256, /* firstTokenId */\n        uint256 batchSize\n    ) internal virtual {\n        if (batchSize > 1) {\n            if (from != address(0)) {\n                _balances[from] -= batchSize;\n            }\n            if (to != address(0)) {\n                _balances[to] += batchSize;\n            }\n        }\n    }\n\n    /**\n     * @dev Hook that is called after any token transfer. This includes minting and burning. If {ERC721Consecutive} is\n     * used, the hook may be called as part of a consecutive (batch) mint, as indicated by `batchSize` greater than 1.\n     *\n     * Calling conditions:\n     *\n     * - When `from` and `to` are both non-zero, ``from``'s tokens were transferred to `to`.\n     * - When `from` is zero, the tokens were minted for `to`.\n     * - When `to` is zero, ``from``'s tokens were burned.\n     * - `from` and `to` are never both zero.\n     * - `batchSize` is non-zero.\n     *\n     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].\n     */\n    function _afterTokenTransfer(\n        address from,\n        address to,\n        uint256 firstTokenId,\n        uint256 batchSize\n    ) internal virtual {}\n}\n"
    },
    "@openzeppelin/contracts/token/ERC721/extensions/IERC721Enumerable.sol": {
      "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.5.0) (token/ERC721/extensions/IERC721Enumerable.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../IERC721.sol\";\n\n/**\n * @title ERC-721 Non-Fungible Token Standard, optional enumeration extension\n * @dev See https://eips.ethereum.org/EIPS/eip-721\n */\ninterface IERC721Enumerable is IERC721 {\n    /**\n     * @dev Returns the total amount of tokens stored by the contract.\n     */\n    function totalSupply() external view returns (uint256);\n\n    /**\n     * @dev Returns a token ID owned by `owner` at a given `index` of its token list.\n     * Use along with {balanceOf} to enumerate all of ``owner``'s tokens.\n     */\n    function tokenOfOwnerByIndex(address owner, uint256 index) external view returns (uint256);\n\n    /**\n     * @dev Returns a token ID at a given `index` of all the tokens stored by the contract.\n     * Use along with {totalSupply} to enumerate all tokens.\n     */\n    function tokenByIndex(uint256 index) external view returns (uint256);\n}\n"
    },
    "@openzeppelin/contracts/token/ERC721/IERC721.sol": {
      "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.8.0) (token/ERC721/IERC721.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../../utils/introspection/IERC165.sol\";\n\n/**\n * @dev Required interface of an ERC721 compliant contract.\n */\ninterface IERC721 is IERC165 {\n    /**\n     * @dev Emitted when `tokenId` token is transferred from `from` to `to`.\n     */\n    event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);\n\n    /**\n     * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.\n     */\n    event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);\n\n    /**\n     * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.\n     */\n    event ApprovalForAll(address indexed owner, address indexed operator, bool approved);\n\n    /**\n     * @dev Returns the number of tokens in ``owner``'s account.\n     */\n    function balanceOf(address owner) external view returns (uint256 balance);\n\n    /**\n     * @dev Returns the owner of the `tokenId` token.\n     *\n     * Requirements:\n     *\n     * - `tokenId` must exist.\n     */\n    function ownerOf(uint256 tokenId) external view returns (address owner);\n\n    /**\n     * @dev Safely transfers `tokenId` token from `from` to `to`.\n     *\n     * Requirements:\n     *\n     * - `from` cannot be the zero address.\n     * - `to` cannot be the zero address.\n     * - `tokenId` token must exist and be owned by `from`.\n     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.\n     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\n     *\n     * Emits a {Transfer} event.\n     */\n    function safeTransferFrom(\n        address from,\n        address to,\n        uint256 tokenId,\n        bytes calldata data\n    ) external;\n\n    /**\n     * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients\n     * are aware of the ERC721 protocol to prevent tokens from being forever locked.\n     *\n     * Requirements:\n     *\n     * - `from` cannot be the zero address.\n     * - `to` cannot be the zero address.\n     * - `tokenId` token must exist and be owned by `from`.\n     * - If the caller is not `from`, it must have been allowed to move this token by either {approve} or {setApprovalForAll}.\n     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\n     *\n     * Emits a {Transfer} event.\n     */\n    function safeTransferFrom(\n        address from,\n        address to,\n        uint256 tokenId\n    ) external;\n\n    /**\n     * @dev Transfers `tokenId` token from `from` to `to`.\n     *\n     * WARNING: Note that the caller is responsible to confirm that the recipient is capable of receiving ERC721\n     * or else they may be permanently lost. Usage of {safeTransferFrom} prevents loss, though the caller must\n     * understand this adds an external call which potentially creates a reentrancy vulnerability.\n     *\n     * Requirements:\n     *\n     * - `from` cannot be the zero address.\n     * - `to` cannot be the zero address.\n     * - `tokenId` token must be owned by `from`.\n     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.\n     *\n     * Emits a {Transfer} event.\n     */\n    function transferFrom(\n        address from,\n        address to,\n        uint256 tokenId\n    ) external;\n\n    /**\n     * @dev Gives permission to `to` to transfer `tokenId` token to another account.\n     * The approval is cleared when the token is transferred.\n     *\n     * Only a single account can be approved at a time, so approving the zero address clears previous approvals.\n     *\n     * Requirements:\n     *\n     * - The caller must own the token or be an approved operator.\n     * - `tokenId` must exist.\n     *\n     * Emits an {Approval} event.\n     */\n    function approve(address to, uint256 tokenId) external;\n\n    /**\n     * @dev Approve or remove `operator` as an operator for the caller.\n     * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.\n     *\n     * Requirements:\n     *\n     * - The `operator` cannot be the caller.\n     *\n     * Emits an {ApprovalForAll} event.\n     */\n    function setApprovalForAll(address operator, bool _approved) external;\n\n    /**\n     * @dev Returns the account approved for `tokenId` token.\n     *\n     * Requirements:\n     *\n     * - `tokenId` must exist.\n     */\n    function getApproved(uint256 tokenId) external view returns (address operator);\n\n    /**\n     * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.\n     *\n     * See {setApprovalForAll}\n     */\n    function isApprovedForAll(address owner, address operator) external view returns (bool);\n}\n"
    },
    "@openzeppelin/contracts/token/ERC721/IERC721Receiver.sol": {
      "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC721/IERC721Receiver.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @title ERC721 token receiver interface\n * @dev Interface for any contract that wants to support safeTransfers\n * from ERC721 asset contracts.\n */\ninterface IERC721Receiver {\n    /**\n     * @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom}\n     * by `operator` from `from`, this function is called.\n     *\n     * It must return its Solidity selector to confirm the token transfer.\n     * If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted.\n     *\n     * The selector can be obtained in Solidity with `IERC721Receiver.onERC721Received.selector`.\n     */\n    function onERC721Received(\n        address operator,\n        address from,\n        uint256 tokenId,\n        bytes calldata data\n    ) external returns (bytes4);\n}\n"
    },
    "@openzeppelin/contracts/token/ERC721/extensions/IERC721Metadata.sol": {
      "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/IERC721Metadata.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../IERC721.sol\";\n\n/**\n * @title ERC-721 Non-Fungible Token Standard, optional metadata extension\n * @dev See https://eips.ethereum.org/EIPS/eip-721\n */\ninterface IERC721Metadata is IERC721 {\n    /**\n     * @dev Returns the token collection name.\n     */\n    function name() external view returns (string memory);\n\n    /**\n     * @dev Returns the token collection symbol.\n     */\n    function symbol() external view returns (string memory);\n\n    /**\n     * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token.\n     */\n    function tokenURI(uint256 tokenId) external view returns (string memory);\n}\n"
    },
    "@openzeppelin/contracts/utils/Address.sol": {
      "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.8.0) (utils/Address.sol)\n\npragma solidity ^0.8.1;\n\n/**\n * @dev Collection of functions related to the address type\n */\nlibrary Address {\n    /**\n     * @dev Returns true if `account` is a contract.\n     *\n     * [IMPORTANT]\n     * ====\n     * It is unsafe to assume that an address for which this function returns\n     * false is an externally-owned account (EOA) and not a contract.\n     *\n     * Among others, `isContract` will return false for the following\n     * types of addresses:\n     *\n     *  - an externally-owned account\n     *  - a contract in construction\n     *  - an address where a contract will be created\n     *  - an address where a contract lived, but was destroyed\n     * ====\n     *\n     * [IMPORTANT]\n     * ====\n     * You shouldn't rely on `isContract` to protect against flash loan attacks!\n     *\n     * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets\n     * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract\n     * constructor.\n     * ====\n     */\n    function isContract(address account) internal view returns (bool) {\n        // This method relies on extcodesize/address.code.length, which returns 0\n        // for contracts in construction, since the code is only stored at the end\n        // of the constructor execution.\n\n        return account.code.length > 0;\n    }\n\n    /**\n     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to\n     * `recipient`, forwarding all available gas and reverting on errors.\n     *\n     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost\n     * of certain opcodes, possibly making contracts go over the 2300 gas limit\n     * imposed by `transfer`, making them unable to receive funds via\n     * `transfer`. {sendValue} removes this limitation.\n     *\n     * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].\n     *\n     * IMPORTANT: because control is transferred to `recipient`, care must be\n     * taken to not create reentrancy vulnerabilities. Consider using\n     * {ReentrancyGuard} or the\n     * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].\n     */\n    function sendValue(address payable recipient, uint256 amount) internal {\n        require(address(this).balance >= amount, \"Address: insufficient balance\");\n\n        (bool success, ) = recipient.call{value: amount}(\"\");\n        require(success, \"Address: unable to send value, recipient may have reverted\");\n    }\n\n    /**\n     * @dev Performs a Solidity function call using a low level `call`. A\n     * plain `call` is an unsafe replacement for a function call: use this\n     * function instead.\n     *\n     * If `target` reverts with a revert reason, it is bubbled up by this\n     * function (like regular Solidity function calls).\n     *\n     * Returns the raw returned data. To convert to the expected return value,\n     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].\n     *\n     * Requirements:\n     *\n     * - `target` must be a contract.\n     * - calling `target` with `data` must not revert.\n     *\n     * _Available since v3.1._\n     */\n    function functionCall(address target, bytes memory data) internal returns (bytes memory) {\n        return functionCallWithValue(target, data, 0, \"Address: low-level call failed\");\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with\n     * `errorMessage` as a fallback revert reason when `target` reverts.\n     *\n     * _Available since v3.1._\n     */\n    function functionCall(\n        address target,\n        bytes memory data,\n        string memory errorMessage\n    ) internal returns (bytes memory) {\n        return functionCallWithValue(target, data, 0, errorMessage);\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n     * but also transferring `value` wei to `target`.\n     *\n     * Requirements:\n     *\n     * - the calling contract must have an ETH balance of at least `value`.\n     * - the called Solidity function must be `payable`.\n     *\n     * _Available since v3.1._\n     */\n    function functionCallWithValue(\n        address target,\n        bytes memory data,\n        uint256 value\n    ) internal returns (bytes memory) {\n        return functionCallWithValue(target, data, value, \"Address: low-level call with value failed\");\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but\n     * with `errorMessage` as a fallback revert reason when `target` reverts.\n     *\n     * _Available since v3.1._\n     */\n    function functionCallWithValue(\n        address target,\n        bytes memory data,\n        uint256 value,\n        string memory errorMessage\n    ) internal returns (bytes memory) {\n        require(address(this).balance >= value, \"Address: insufficient balance for call\");\n        (bool success, bytes memory returndata) = target.call{value: value}(data);\n        return verifyCallResultFromTarget(target, success, returndata, errorMessage);\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n     * but performing a static call.\n     *\n     * _Available since v3.3._\n     */\n    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {\n        return functionStaticCall(target, data, \"Address: low-level static call failed\");\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\n     * but performing a static call.\n     *\n     * _Available since v3.3._\n     */\n    function functionStaticCall(\n        address target,\n        bytes memory data,\n        string memory errorMessage\n    ) internal view returns (bytes memory) {\n        (bool success, bytes memory returndata) = target.staticcall(data);\n        return verifyCallResultFromTarget(target, success, returndata, errorMessage);\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n     * but performing a delegate call.\n     *\n     * _Available since v3.4._\n     */\n    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {\n        return functionDelegateCall(target, data, \"Address: low-level delegate call failed\");\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\n     * but performing a delegate call.\n     *\n     * _Available since v3.4._\n     */\n    function functionDelegateCall(\n        address target,\n        bytes memory data,\n        string memory errorMessage\n    ) internal returns (bytes memory) {\n        (bool success, bytes memory returndata) = target.delegatecall(data);\n        return verifyCallResultFromTarget(target, success, returndata, errorMessage);\n    }\n\n    /**\n     * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling\n     * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.\n     *\n     * _Available since v4.8._\n     */\n    function verifyCallResultFromTarget(\n        address target,\n        bool success,\n        bytes memory returndata,\n        string memory errorMessage\n    ) internal view returns (bytes memory) {\n        if (success) {\n            if (returndata.length == 0) {\n                // only check isContract if the call was successful and the return data is empty\n                // otherwise we already know that it was a contract\n                require(isContract(target), \"Address: call to non-contract\");\n            }\n            return returndata;\n        } else {\n            _revert(returndata, errorMessage);\n        }\n    }\n\n    /**\n     * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the\n     * revert reason or using the provided one.\n     *\n     * _Available since v4.3._\n     */\n    function verifyCallResult(\n        bool success,\n        bytes memory returndata,\n        string memory errorMessage\n    ) internal pure returns (bytes memory) {\n        if (success) {\n            return returndata;\n        } else {\n            _revert(returndata, errorMessage);\n        }\n    }\n\n    function _revert(bytes memory returndata, string memory errorMessage) private pure {\n        // Look for revert reason and bubble it up if present\n        if (returndata.length > 0) {\n            // The easiest way to bubble the revert reason is using memory via assembly\n            /// @solidity memory-safe-assembly\n            assembly {\n                let returndata_size := mload(returndata)\n                revert(add(32, returndata), returndata_size)\n            }\n        } else {\n            revert(errorMessage);\n        }\n    }\n}\n"
    },
    "@openzeppelin/contracts/utils/Context.sol": {
      "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Provides information about the current execution context, including the\n * sender of the transaction and its data. While these are generally available\n * via msg.sender and msg.data, they should not be accessed in such a direct\n * manner, since when dealing with meta-transactions the account sending and\n * paying for execution may not be the actual sender (as far as an application\n * is concerned).\n *\n * This contract is only required for intermediate, library-like contracts.\n */\nabstract contract Context {\n    function _msgSender() internal view virtual returns (address) {\n        return msg.sender;\n    }\n\n    function _msgData() internal view virtual returns (bytes calldata) {\n        return msg.data;\n    }\n}\n"
    },
    "@openzeppelin/contracts/utils/introspection/ERC165.sol": {
      "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol)\n\npragma solidity ^0.8.0;\n\nimport \"./IERC165.sol\";\n\n/**\n * @dev Implementation of the {IERC165} interface.\n *\n * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check\n * for the additional interface id that will be supported. For example:\n *\n * ```solidity\n * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {\n *     return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);\n * }\n * ```\n *\n * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation.\n */\nabstract contract ERC165 is IERC165 {\n    /**\n     * @dev See {IERC165-supportsInterface}.\n     */\n    function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {\n        return interfaceId == type(IERC165).interfaceId;\n    }\n}\n"
    },
    "@openzeppelin/contracts/utils/introspection/IERC165.sol": {
      "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Interface of the ERC165 standard, as defined in the\n * https://eips.ethereum.org/EIPS/eip-165[EIP].\n *\n * Implementers can declare support of contract interfaces, which can then be\n * queried by others ({ERC165Checker}).\n *\n * For an implementation, see {ERC165}.\n */\ninterface IERC165 {\n    /**\n     * @dev Returns true if this contract implements the interface defined by\n     * `interfaceId`. See the corresponding\n     * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]\n     * to learn more about how these ids are created.\n     *\n     * This function call must use less than 30 000 gas.\n     */\n    function supportsInterface(bytes4 interfaceId) external view returns (bool);\n}\n"
    },
    "@openzeppelin/contracts/utils/math/Math.sol": {
      "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.8.0) (utils/math/Math.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Standard math utilities missing in the Solidity language.\n */\nlibrary Math {\n    enum Rounding {\n        Down, // Toward negative infinity\n        Up, // Toward infinity\n        Zero // Toward zero\n    }\n\n    /**\n     * @dev Returns the largest of two numbers.\n     */\n    function max(uint256 a, uint256 b) internal pure returns (uint256) {\n        return a > b ? a : b;\n    }\n\n    /**\n     * @dev Returns the smallest of two numbers.\n     */\n    function min(uint256 a, uint256 b) internal pure returns (uint256) {\n        return a < b ? a : b;\n    }\n\n    /**\n     * @dev Returns the average of two numbers. The result is rounded towards\n     * zero.\n     */\n    function average(uint256 a, uint256 b) internal pure returns (uint256) {\n        // (a + b) / 2 can overflow.\n        return (a & b) + (a ^ b) / 2;\n    }\n\n    /**\n     * @dev Returns the ceiling of the division of two numbers.\n     *\n     * This differs from standard division with `/` in that it rounds up instead\n     * of rounding down.\n     */\n    function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) {\n        // (a + b - 1) / b can overflow on addition, so we distribute.\n        return a == 0 ? 0 : (a - 1) / b + 1;\n    }\n\n    /**\n     * @notice Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or denominator == 0\n     * @dev Original credit to Remco Bloemen under MIT license (https://xn--2-umb.com/21/muldiv)\n     * with further edits by Uniswap Labs also under MIT license.\n     */\n    function mulDiv(\n        uint256 x,\n        uint256 y,\n        uint256 denominator\n    ) internal pure returns (uint256 result) {\n        unchecked {\n            // 512-bit multiply [prod1 prod0] = x * y. Compute the product mod 2^256 and mod 2^256 - 1, then use\n            // use the Chinese Remainder Theorem to reconstruct the 512 bit result. The result is stored in two 256\n            // variables such that product = prod1 * 2^256 + prod0.\n            uint256 prod0; // Least significant 256 bits of the product\n            uint256 prod1; // Most significant 256 bits of the product\n            assembly {\n                let mm := mulmod(x, y, not(0))\n                prod0 := mul(x, y)\n                prod1 := sub(sub(mm, prod0), lt(mm, prod0))\n            }\n\n            // Handle non-overflow cases, 256 by 256 division.\n            if (prod1 == 0) {\n                return prod0 / denominator;\n            }\n\n            // Make sure the result is less than 2^256. Also prevents denominator == 0.\n            require(denominator > prod1);\n\n            ///////////////////////////////////////////////\n            // 512 by 256 division.\n            ///////////////////////////////////////////////\n\n            // Make division exact by subtracting the remainder from [prod1 prod0].\n            uint256 remainder;\n            assembly {\n                // Compute remainder using mulmod.\n                remainder := mulmod(x, y, denominator)\n\n                // Subtract 256 bit number from 512 bit number.\n                prod1 := sub(prod1, gt(remainder, prod0))\n                prod0 := sub(prod0, remainder)\n            }\n\n            // Factor powers of two out of denominator and compute largest power of two divisor of denominator. Always >= 1.\n            // See https://cs.stackexchange.com/q/138556/92363.\n\n            // Does not overflow because the denominator cannot be zero at this stage in the function.\n            uint256 twos = denominator & (~denominator + 1);\n            assembly {\n                // Divide denominator by twos.\n                denominator := div(denominator, twos)\n\n                // Divide [prod1 prod0] by twos.\n                prod0 := div(prod0, twos)\n\n                // Flip twos such that it is 2^256 / twos. If twos is zero, then it becomes one.\n                twos := add(div(sub(0, twos), twos), 1)\n            }\n\n            // Shift in bits from prod1 into prod0.\n            prod0 |= prod1 * twos;\n\n            // Invert denominator mod 2^256. Now that denominator is an odd number, it has an inverse modulo 2^256 such\n            // that denominator * inv = 1 mod 2^256. Compute the inverse by starting with a seed that is correct for\n            // four bits. That is, denominator * inv = 1 mod 2^4.\n            uint256 inverse = (3 * denominator) ^ 2;\n\n            // Use the Newton-Raphson iteration to improve the precision. Thanks to Hensel's lifting lemma, this also works\n            // in modular arithmetic, doubling the correct bits in each step.\n            inverse *= 2 - denominator * inverse; // inverse mod 2^8\n            inverse *= 2 - denominator * inverse; // inverse mod 2^16\n            inverse *= 2 - denominator * inverse; // inverse mod 2^32\n            inverse *= 2 - denominator * inverse; // inverse mod 2^64\n            inverse *= 2 - denominator * inverse; // inverse mod 2^128\n            inverse *= 2 - denominator * inverse; // inverse mod 2^256\n\n            // Because the division is now exact we can divide by multiplying with the modular inverse of denominator.\n            // This will give us the correct result modulo 2^256. Since the preconditions guarantee that the outcome is\n            // less than 2^256, this is the final result. We don't need to compute the high bits of the result and prod1\n            // is no longer required.\n            result = prod0 * inverse;\n            return result;\n        }\n    }\n\n    /**\n     * @notice Calculates x * y / denominator with full precision, following the selected rounding direction.\n     */\n    function mulDiv(\n        uint256 x,\n        uint256 y,\n        uint256 denominator,\n        Rounding rounding\n    ) internal pure returns (uint256) {\n        uint256 result = mulDiv(x, y, denominator);\n        if (rounding == Rounding.Up && mulmod(x, y, denominator) > 0) {\n            result += 1;\n        }\n        return result;\n    }\n\n    /**\n     * @dev Returns the square root of a number. If the number is not a perfect square, the value is rounded down.\n     *\n     * Inspired by Henry S. Warren, Jr.'s \"Hacker's Delight\" (Chapter 11).\n     */\n    function sqrt(uint256 a) internal pure returns (uint256) {\n        if (a == 0) {\n            return 0;\n        }\n\n        // For our first guess, we get the biggest power of 2 which is smaller than the square root of the target.\n        //\n        // We know that the \"msb\" (most significant bit) of our target number `a` is a power of 2 such that we have\n        // `msb(a) <= a < 2*msb(a)`. This value can be written `msb(a)=2**k` with `k=log2(a)`.\n        //\n        // This can be rewritten `2**log2(a) <= a < 2**(log2(a) + 1)`\n        // → `sqrt(2**k) <= sqrt(a) < sqrt(2**(k+1))`\n        // → `2**(k/2) <= sqrt(a) < 2**((k+1)/2) <= 2**(k/2 + 1)`\n        //\n        // Consequently, `2**(log2(a) / 2)` is a good first approximation of `sqrt(a)` with at least 1 correct bit.\n        uint256 result = 1 << (log2(a) >> 1);\n\n        // At this point `result` is an estimation with one bit of precision. We know the true value is a uint128,\n        // since it is the square root of a uint256. Newton's method converges quadratically (precision doubles at\n        // every iteration). We thus need at most 7 iteration to turn our partial result with one bit of precision\n        // into the expected uint128 result.\n        unchecked {\n            result = (result + a / result) >> 1;\n            result = (result + a / result) >> 1;\n            result = (result + a / result) >> 1;\n            result = (result + a / result) >> 1;\n            result = (result + a / result) >> 1;\n            result = (result + a / result) >> 1;\n            result = (result + a / result) >> 1;\n            return min(result, a / result);\n        }\n    }\n\n    /**\n     * @notice Calculates sqrt(a), following the selected rounding direction.\n     */\n    function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) {\n        unchecked {\n            uint256 result = sqrt(a);\n            return result + (rounding == Rounding.Up && result * result < a ? 1 : 0);\n        }\n    }\n\n    /**\n     * @dev Return the log in base 2, rounded down, of a positive value.\n     * Returns 0 if given 0.\n     */\n    function log2(uint256 value) internal pure returns (uint256) {\n        uint256 result = 0;\n        unchecked {\n            if (value >> 128 > 0) {\n                value >>= 128;\n                result += 128;\n            }\n            if (value >> 64 > 0) {\n                value >>= 64;\n                result += 64;\n            }\n            if (value >> 32 > 0) {\n                value >>= 32;\n                result += 32;\n            }\n            if (value >> 16 > 0) {\n                value >>= 16;\n                result += 16;\n            }\n            if (value >> 8 > 0) {\n                value >>= 8;\n                result += 8;\n            }\n            if (value >> 4 > 0) {\n                value >>= 4;\n                result += 4;\n            }\n            if (value >> 2 > 0) {\n                value >>= 2;\n                result += 2;\n            }\n            if (value >> 1 > 0) {\n                result += 1;\n            }\n        }\n        return result;\n    }\n\n    /**\n     * @dev Return the log in base 2, following the selected rounding direction, of a positive value.\n     * Returns 0 if given 0.\n     */\n    function log2(uint256 value, Rounding rounding) internal pure returns (uint256) {\n        unchecked {\n            uint256 result = log2(value);\n            return result + (rounding == Rounding.Up && 1 << result < value ? 1 : 0);\n        }\n    }\n\n    /**\n     * @dev Return the log in base 10, rounded down, of a positive value.\n     * Returns 0 if given 0.\n     */\n    function log10(uint256 value) internal pure returns (uint256) {\n        uint256 result = 0;\n        unchecked {\n            if (value >= 10**64) {\n                value /= 10**64;\n                result += 64;\n            }\n            if (value >= 10**32) {\n                value /= 10**32;\n                result += 32;\n            }\n            if (value >= 10**16) {\n                value /= 10**16;\n                result += 16;\n            }\n            if (value >= 10**8) {\n                value /= 10**8;\n                result += 8;\n            }\n            if (value >= 10**4) {\n                value /= 10**4;\n                result += 4;\n            }\n            if (value >= 10**2) {\n                value /= 10**2;\n                result += 2;\n            }\n            if (value >= 10**1) {\n                result += 1;\n            }\n        }\n        return result;\n    }\n\n    /**\n     * @dev Return the log in base 10, following the selected rounding direction, of a positive value.\n     * Returns 0 if given 0.\n     */\n    function log10(uint256 value, Rounding rounding) internal pure returns (uint256) {\n        unchecked {\n            uint256 result = log10(value);\n            return result + (rounding == Rounding.Up && 10**result < value ? 1 : 0);\n        }\n    }\n\n    /**\n     * @dev Return the log in base 256, rounded down, of a positive value.\n     * Returns 0 if given 0.\n     *\n     * Adding one to the result gives the number of pairs of hex symbols needed to represent `value` as a hex string.\n     */\n    function log256(uint256 value) internal pure returns (uint256) {\n        uint256 result = 0;\n        unchecked {\n            if (value >> 128 > 0) {\n                value >>= 128;\n                result += 16;\n            }\n            if (value >> 64 > 0) {\n                value >>= 64;\n                result += 8;\n            }\n            if (value >> 32 > 0) {\n                value >>= 32;\n                result += 4;\n            }\n            if (value >> 16 > 0) {\n                value >>= 16;\n                result += 2;\n            }\n            if (value >> 8 > 0) {\n                result += 1;\n            }\n        }\n        return result;\n    }\n\n    /**\n     * @dev Return the log in base 10, following the selected rounding direction, of a positive value.\n     * Returns 0 if given 0.\n     */\n    function log256(uint256 value, Rounding rounding) internal pure returns (uint256) {\n        unchecked {\n            uint256 result = log256(value);\n            return result + (rounding == Rounding.Up && 1 << (result * 8) < value ? 1 : 0);\n        }\n    }\n}\n"
    },
    "operator-filter-registry/src/OperatorFilterer.sol": {
      "content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.13;\n\nimport {IOperatorFilterRegistry} from \"./IOperatorFilterRegistry.sol\";\nimport {CANONICAL_OPERATOR_FILTER_REGISTRY_ADDRESS} from \"./lib/Constants.sol\";\n/**\n * @title  OperatorFilterer\n * @notice Abstract contract whose constructor automatically registers and optionally subscribes to or copies another\n *         registrant's entries in the OperatorFilterRegistry.\n * @dev    This smart contract is meant to be inherited by token contracts so they can use the following:\n *         - `onlyAllowedOperator` modifier for `transferFrom` and `safeTransferFrom` methods.\n *         - `onlyAllowedOperatorApproval` modifier for `approve` and `setApprovalForAll` methods.\n *         Please note that if your token contract does not provide an owner with EIP-173, it must provide\n *         administration methods on the contract itself to interact with the registry otherwise the subscription\n *         will be locked to the options set during construction.\n */\n\nabstract contract OperatorFilterer {\n    /// @dev Emitted when an operator is not allowed.\n    error OperatorNotAllowed(address operator);\n\n    IOperatorFilterRegistry public constant OPERATOR_FILTER_REGISTRY =\n        IOperatorFilterRegistry(CANONICAL_OPERATOR_FILTER_REGISTRY_ADDRESS);\n\n    /// @dev The constructor that is called when the contract is being deployed.\n    constructor(address subscriptionOrRegistrantToCopy, bool subscribe) {\n        // If an inheriting token contract is deployed to a network without the registry deployed, the modifier\n        // will not revert, but the contract will need to be registered with the registry once it is deployed in\n        // order for the modifier to filter addresses.\n        if (address(OPERATOR_FILTER_REGISTRY).code.length > 0) {\n            if (subscribe) {\n                OPERATOR_FILTER_REGISTRY.registerAndSubscribe(address(this), subscriptionOrRegistrantToCopy);\n            } else {\n                if (subscriptionOrRegistrantToCopy != address(0)) {\n                    OPERATOR_FILTER_REGISTRY.registerAndCopyEntries(address(this), subscriptionOrRegistrantToCopy);\n                } else {\n                    OPERATOR_FILTER_REGISTRY.register(address(this));\n                }\n            }\n        }\n    }\n\n    /**\n     * @dev A helper function to check if an operator is allowed.\n     */\n    modifier onlyAllowedOperator(address from) virtual {\n        // Allow spending tokens from addresses with balance\n        // Note that this still allows listings and marketplaces with escrow to transfer tokens if transferred\n        // from an EOA.\n        if (from != msg.sender) {\n            _checkFilterOperator(msg.sender);\n        }\n        _;\n    }\n\n    /**\n     * @dev A helper function to check if an operator approval is allowed.\n     */\n    modifier onlyAllowedOperatorApproval(address operator) virtual {\n        _checkFilterOperator(operator);\n        _;\n    }\n\n    /**\n     * @dev A helper function to check if an operator is allowed.\n     */\n    function _checkFilterOperator(address operator) internal view virtual {\n        // Check registry code length to facilitate testing in environments without a deployed registry.\n        if (address(OPERATOR_FILTER_REGISTRY).code.length > 0) {\n            // under normal circumstances, this function will revert rather than return false, but inheriting contracts\n            // may specify their own OperatorFilterRegistry implementations, which may behave differently\n            if (!OPERATOR_FILTER_REGISTRY.isOperatorAllowed(address(this), operator)) {\n                revert OperatorNotAllowed(operator);\n            }\n        }\n    }\n}\n"
    },
    "operator-filter-registry/src/lib/Constants.sol": {
      "content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.17;\n\naddress constant CANONICAL_OPERATOR_FILTER_REGISTRY_ADDRESS = 0x000000000000AAeB6D7670E522A718067333cd4E;\naddress constant CANONICAL_CORI_SUBSCRIPTION = 0x3cc6CddA760b79bAfa08dF41ECFA224f810dCeB6;\n"
    },
    "operator-filter-registry/src/IOperatorFilterRegistry.sol": {
      "content": "// SPDX-License-Identifier: MIT\npragma solidity ^0.8.13;\n\ninterface IOperatorFilterRegistry {\n    /**\n     * @notice Returns true if operator is not filtered for a given token, either by address or codeHash. Also returns\n     *         true if supplied registrant address is not registered.\n     */\n    function isOperatorAllowed(address registrant, address operator) external view returns (bool);\n\n    /**\n     * @notice Registers an address with the registry. May be called by address itself or by EIP-173 owner.\n     */\n    function register(address registrant) external;\n\n    /**\n     * @notice Registers an address with the registry and \"subscribes\" to another address's filtered operators and codeHashes.\n     */\n    function registerAndSubscribe(address registrant, address subscription) external;\n\n    /**\n     * @notice Registers an address with the registry and copies the filtered operators and codeHashes from another\n     *         address without subscribing.\n     */\n    function registerAndCopyEntries(address registrant, address registrantToCopy) external;\n\n    /**\n     * @notice Unregisters an address with the registry and removes its subscription. May be called by address itself or by EIP-173 owner.\n     *         Note that this does not remove any filtered addresses or codeHashes.\n     *         Also note that any subscriptions to this registrant will still be active and follow the existing filtered addresses and codehashes.\n     */\n    function unregister(address addr) external;\n\n    /**\n     * @notice Update an operator address for a registered address - when filtered is true, the operator is filtered.\n     */\n    function updateOperator(address registrant, address operator, bool filtered) external;\n\n    /**\n     * @notice Update multiple operators for a registered address - when filtered is true, the operators will be filtered. Reverts on duplicates.\n     */\n    function updateOperators(address registrant, address[] calldata operators, bool filtered) external;\n\n    /**\n     * @notice Update a codeHash for a registered address - when filtered is true, the codeHash is filtered.\n     */\n    function updateCodeHash(address registrant, bytes32 codehash, bool filtered) external;\n\n    /**\n     * @notice Update multiple codeHashes for a registered address - when filtered is true, the codeHashes will be filtered. Reverts on duplicates.\n     */\n    function updateCodeHashes(address registrant, bytes32[] calldata codeHashes, bool filtered) external;\n\n    /**\n     * @notice Subscribe an address to another registrant's filtered operators and codeHashes. Will remove previous\n     *         subscription if present.\n     *         Note that accounts with subscriptions may go on to subscribe to other accounts - in this case,\n     *         subscriptions will not be forwarded. Instead the former subscription's existing entries will still be\n     *         used.\n     */\n    function subscribe(address registrant, address registrantToSubscribe) external;\n\n    /**\n     * @notice Unsubscribe an address from its current subscribed registrant, and optionally copy its filtered operators and codeHashes.\n     */\n    function unsubscribe(address registrant, bool copyExistingEntries) external;\n\n    /**\n     * @notice Get the subscription address of a given registrant, if any.\n     */\n    function subscriptionOf(address addr) external returns (address registrant);\n\n    /**\n     * @notice Get the set of addresses subscribed to a given registrant.\n     *         Note that order is not guaranteed as updates are made.\n     */\n    function subscribers(address registrant) external returns (address[] memory);\n\n    /**\n     * @notice Get the subscriber at a given index in the set of addresses subscribed to a given registrant.\n     *         Note that order is not guaranteed as updates are made.\n     */\n    function subscriberAt(address registrant, uint256 index) external returns (address);\n\n    /**\n     * @notice Copy filtered operators and codeHashes from a different registrantToCopy to addr.\n     */\n    function copyEntriesOf(address registrant, address registrantToCopy) external;\n\n    /**\n     * @notice Returns true if operator is filtered by a given address or its subscription.\n     */\n    function isOperatorFiltered(address registrant, address operator) external returns (bool);\n\n    /**\n     * @notice Returns true if the hash of an address's code is filtered by a given address or its subscription.\n     */\n    function isCodeHashOfFiltered(address registrant, address operatorWithCode) external returns (bool);\n\n    /**\n     * @notice Returns true if a codeHash is filtered by a given address or its subscription.\n     */\n    function isCodeHashFiltered(address registrant, bytes32 codeHash) external returns (bool);\n\n    /**\n     * @notice Returns a list of filtered operators for a given address or its subscription.\n     */\n    function filteredOperators(address addr) external returns (address[] memory);\n\n    /**\n     * @notice Returns the set of filtered codeHashes for a given address or its subscription.\n     *         Note that order is not guaranteed as updates are made.\n     */\n    function filteredCodeHashes(address addr) external returns (bytes32[] memory);\n\n    /**\n     * @notice Returns the filtered operator at the given index of the set of filtered operators for a given address or\n     *         its subscription.\n     *         Note that order is not guaranteed as updates are made.\n     */\n    function filteredOperatorAt(address registrant, uint256 index) external returns (address);\n\n    /**\n     * @notice Returns the filtered codeHash at the given index of the list of filtered codeHashes for a given address or\n     *         its subscription.\n     *         Note that order is not guaranteed as updates are made.\n     */\n    function filteredCodeHashAt(address registrant, uint256 index) external returns (bytes32);\n\n    /**\n     * @notice Returns true if an address has registered\n     */\n    function isRegistered(address addr) external returns (bool);\n\n    /**\n     * @dev Convenience method to compute the code hash of an arbitrary contract\n     */\n    function codeHashOf(address addr) external returns (bytes32);\n}\n"
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