creation_sourcecode: {{
    "language": "Solidity",
    "sources": {
      "src/B2B/MaisonMargiela/MaisonMargielaVaultManager.sol": {
        "content": "// Vault Manager contract for Maison Margiela.\n// Used to transfer MM NFTs from the vault to the recipient and relay data to FE.\n// A 'dummy' NFT must be minted in order to integrate with Crossmint payments.\n\n// SPDX-License-Identifier: MIT\n\npragma solidity ^0.8.0;\n\nimport \"lib/openzeppelin-contracts/contracts/access/Ownable.sol\";\nimport \"lib/openzeppelin-contracts/contracts/security/ReentrancyGuard.sol\";\nimport \"lib/openzeppelin-contracts/contracts/security/Pausable.sol\";\nimport \"lib/openzeppelin-contracts/contracts/utils/Strings.sol\";\nimport \"lib/openzeppelin-contracts/contracts/token/common/ERC2981.sol\";\n\nimport \"../../lib/token/ERC721A.sol\";\nimport \"../../lib/token/metadata/TFMetadata.sol\";\n\nimport \"../../lib/interfaces/AuraInterface.sol\";\n\n/// @title MaisonMargielaVaultManager\n/// @author The Fabricant (phill@thefabricant.com, fullstackpho@protonmail.com)\n/// @notice MaisonMargielaVaultManager\ncontract MaisonMargielaVaultManager is Ownable, Pausable, ERC721A, ERC2981, ReentrancyGuard, TFMetadata {\n    using Strings for uint32;\n\n    /*//////////////////////////////////////////////////////////////\n                            EVENTS\n    //////////////////////////////////////////////////////////////*/\n\n    /// @notice Event emitted when the access list is updated\n    /// @param addresses Array of addresses to update\n    /// @param allowed Array of booleans indicating if the address is allowed to mint\n    event AccessListUpdated(address[] addresses, bool[] allowed);\n\n    /// @notice Event emitted when the base URI is updated\n    /// @param baseURI New base URI\n    event BaseURIUpdated(string baseURI);\n\n    /// @notice Event emitted when the default royalty receiver and fee are updated\n    /// @param receiver Address to receive royalties\n    /// @param feeNumerator Numerator of the royalty fee\n    event DefaultRoyaltyUpdated(address receiver, uint96 feeNumerator);\n\n    /// @notice Event emitted when the sale is opened or closed\n    /// @param isOpen Boolean indicating if the sale is open or closed\n    event SaleIsOpenUpdated(bool isOpen);\n\n    /// @notice Event emitted when the dev minting phase is opened or closed\n    /// @param isOpen Boolean indicating if the dev minting phase is open or closed\n    event DevMintIsOpenUpdated(bool isOpen);\n\n    /// @notice Event emitted when a payment is withdrawn\n    /// @param receiver Address to receive mint royalties\n    /// @param amount Amount withdrawn\n    event PaymentWithdrawn(address receiver, uint256 amount);\n\n    /// @notice Event emitted when the price of a variant is updated\n    /// @param variantId Variant ID of the variant to set the price for\n    /// @param price Price to set for the variant\n    event VariantPriceUpdated(uint32 indexed variantId, uint256 price);\n\n    /// @notice Event emitted when an NFT is minted\n    /// @param tokenId Token ID of the NFT minted\n    /// @param variantId Variant ID of the NFT minted\n    /// @param receiver Address that received the NFT\n    event NftMinted(uint256 indexed tokenId, uint32 indexed variantId, address indexed receiver);\n\n    /*//////////////////////////////////////////////////////////////\n                            DATA STRUCTURES\n    //////////////////////////////////////////////////////////////*/\n\n    /// @notice Used by contract to keep track of sale\n    struct SaleConfig {\n        bool isOpen; // Minting is open/closed\n        bool devMintIsOpen; // Dev minting is open/closed\n        uint16 maxBatchSize; // Max number of tokens that can be minted in a single transaction\n    }\n\n    /// @notice Used to get Sale data off-chain\n    struct SaleData {\n        bool isOpen; // Minting is open/closed\n        uint16 maxBatchSize; // max number of nfts that can be minted in a single batch\n        uint32 totalSupply; // total number sold\n        uint32[] allowedVariants; // Array of variant IDs that are allowed to be minted\n        uint16[] unitsSold; // Number sold of each variant\n        uint256[] variantPrices; // Prices of each variant\n    }\n\n    /// @notice Used by contract to get variant data\n    struct VariantData {\n        bool isSet; // Indicates if variantData is set for this position in the _variantData mapping\n        uint32 variantId; // id of the variant\n        uint16 unitsSold; // number of nfts minted for this variant\n        uint256 maxSupply; // max number of nfts that can be minted for this variant\n        uint256 price; // price of the variant in wei\n        string variantName; // name of the variant\n        string description; // desc of the variant\n    }\n\n    /*//////////////////////////////////////////////////////////////\n                            STATE VARIABLES\n    //////////////////////////////////////////////////////////////*/\n\n    /// @notice Configuration settings for the sale\n    SaleConfig public saleConfig;\n\n    /// @notice Used internally to track settings for each variant and check if a variant can be minted\n    /// @dev Maps variant IDs to their respective VariantData\n    mapping(uint32 => VariantData) internal _variantData;\n\n    /// @notice Access list for addresses allowed to mint in dev minting phase\n    /// @dev Used exclusively for dev minting, mapping an address to a bool indicating allowed access\n    mapping(address => bool) public accessList;\n\n    /// @notice Address designated to receive minting royalties\n    /// @dev Public address that is set to receive royalties from minting\n    address public mintRoyaltyReceiver;\n\n    AuraInterface public auraContract;\n\n    /// @notice This is the address where all the MM NFTs were minted to\n    address public mmVaultAddress;\n\n    /// @notice Used during minting to determine where the variant2 tokenIds start in the Aura contract\n    uint256 public immutable VARIANT_1_MAX_SUPPLY;\n\n    /*//////////////////////////////////////////////////////////////\n                            CONSTRUCTOR\n    //////////////////////////////////////////////////////////////*/\n\n    /// @notice Constructor for MaisonMargielaVaultManager\n    /// @param _baseURIString Base URI for token metadata\n    /// @param _royaltyBasisPoints Royalty basis points for minting\n    constructor(\n        string memory _baseURIString,\n        uint96 _royaltyBasisPoints,\n        address _auraContractAddress,\n        address _mmVaultAddress\n    ) ERC721A(\"MintToken\", \"MT\") {\n        // Set VariantData\n        // Variant 1\n        VariantData memory v1 = VariantData({\n            isSet: true,\n            price: 2.37 ether,\n            variantId: 1,\n            unitsSold: 0,\n            maxSupply: 15,\n            variantName: \"Tier 1\",\n            description: \"T1 D\"\n        });\n        _variantData[1] = v1;\n\n        // Variant 2\n        VariantData memory v2 = VariantData({\n            isSet: true,\n            price: 0.18 ether,\n            variantId: 2,\n            unitsSold: 0,\n            maxSupply: 1500,\n            variantName: \"Tier 2\",\n            description: \"T2 D\"\n        });\n        _variantData[2] = v2;\n        // Set SaleConfig\n        SaleConfig memory saleConf = SaleConfig({isOpen: false, devMintIsOpen: false, maxBatchSize: 5});\n        saleConfig = saleConf;\n        // Set marketplace royalty\n        _setDefaultRoyalty(0xf5f916a3E4C449Ac8Ae39fDAEF7ac3D169faa87A, uint96(_royaltyBasisPoints));\n        // Set mint royalty receiver\n        mintRoyaltyReceiver = 0x14A497f025EE0cF56de15409d8Aec885cC220839;\n        // Set collection name and baseURI\n        _setCollectionName(\"MintToken\");\n        setBaseURI(_baseURIString);\n\n        // Set Aura contract\n        auraContract = AuraInterface(_auraContractAddress);\n        mmVaultAddress = _mmVaultAddress;\n\n        // Set variant 1 max supply constant\n        VARIANT_1_MAX_SUPPLY = _variantData[1].maxSupply;\n    }\n\n    /*//////////////////////////////////////////////////////////////\n                            INTERNAL FUNCTIONS\n    //////////////////////////////////////////////////////////////*/\n\n    /// @notice Internal function that returns the baseURI\n    function _baseURI() internal view virtual override returns (string memory) {\n        return _baseTokenURI;\n    }\n\n    // @notice Internal override function that defines the starting tokenId\n    function _startTokenId() internal pure override returns (uint256) {\n        return 1;\n    }\n\n    /*//////////////////////////////////////////////////////////////\n                EXTERNAL/PUBLIC STATE-CHANGING FUNCTIONS\n    //////////////////////////////////////////////////////////////*/\n\n    /// @notice External function to mint tokens\n    /// @param _to Address to mint tokens to\n    /// @param _quantity Number of tokens to mint\n    /// @param _variantId Variant ID of the token to mint\n    /// @dev Users can only mint if the sale is open, the batchSize (quantity) is less than 5 but not 0, and the variantId is between 1 and 7. They must also send the correct payment amount.\n    function mint(address _to, uint256 _quantity, uint32 _variantId) external payable nonReentrant whenNotPaused {\n        SaleConfig storage saleC = saleConfig;\n        VariantData storage variant = _variantData[_variantId];\n\n        require(_to != address(0), \"MaisonMargielaVaultManager::mint:Cannot mint to 0 address\");\n        require(saleC.isOpen, \"MaisonMargielaVaultManager::mint:Mint closed\");\n        require(\n            _quantity <= saleC.maxBatchSize && _quantity != 0, \"MaisonMargielaVaultManager::mint:Unsupported quantity\"\n        );\n        require(variant.isSet, \"MaisonMargielaVaultManager::mint:Variant ID not set\");\n        require(\n            msg.value >= _quantity * variant.price, (\"MaisonMargielaVaultManager::mint:Ether value sent is incorrect\")\n        );\n        require(\n            variant.unitsSold + _quantity <= variant.maxSupply, \"MaisonMargielaVaultManager::mint:Max supply reached\"\n        );\n\n        // keeps track of the MM NFT to transfer from the aura contract\n        uint256 startingNftToTransfer;\n        // Calculate which NFT to transfer\n        if (_variantId == 1) {\n            // If variantId is 1, then the starting NFT to transfer is the number of units sold + 1\n            startingNftToTransfer = variant.unitsSold + 1;\n        } else {\n            uint256 variant1MaxSupply = VARIANT_1_MAX_SUPPLY;\n            // If variantId is 2, then the starting NFT to transfer is variant1 maxSupply (15) + 1, then add the number of v2 units sold\n            startingNftToTransfer = variant1MaxSupply + 1 + variant.unitsSold;\n        }\n\n        for (uint256 j = startingNftToTransfer; j < (_quantity + startingNftToTransfer); j++) {\n            // Transfer MM NFTs from the vault address to the _to address\n            auraContract.safeTransferFrom(mmVaultAddress, _to, j);\n\n            // Emit NFTMinted event for Aura NFT transfer\n            // This event tracks the Aura NFT tokenId and the associated variantId\n            emit NftMinted(j, _variantId, _to);\n        }\n\n        // Increment the number of units sold for the variant\n        variant.unitsSold += uint16(_quantity);\n\n        // Mint the dummy NFT to satisfy Crossmint payment requirements\n        _safeMint(_to, _quantity);\n    }\n\n    /// @notice External admin function to mint tokens\n    /// @param _to Address to mint tokens to\n    /// @param _quantity Number of tokens to mint\n    /// @param _variantId Variant ID of the token to mint\n    /// @dev Users can only mint if isOpen or devMintIsOpen is true, the batchSize (quantity) is less than 5 but not 0, and the variantId is between 1 and 7. The caller must not send payment\n    function adminMint(address _to, uint256 _quantity, uint32 _variantId)\n        external\n        payable\n        nonReentrant\n        whenNotPaused\n        onlyOwner\n    {\n        SaleConfig memory saleC = saleConfig;\n        VariantData storage variant = _variantData[_variantId];\n\n        require(_to != address(0), \"MaisonMargielaVaultManager::adminMint:Cannot mint to 0 address\");\n        require(saleC.isOpen || saleC.devMintIsOpen, \"MaisonMargielaVaultManager::adminMint:Mint closed\");\n        require(\n            _quantity <= saleC.maxBatchSize && _quantity != 0,\n            \"MaisonMargielaVaultManager::adminMint:Unsupported quantity\"\n        );\n        require(variant.isSet, \"MaisonMargielaVaultManager::adminMint:Variant ID not set\");\n        require(msg.value == 0, (\"MaisonMargielaVaultManager::adminMint:Cannot accept payment\"));\n        require(\n            variant.unitsSold + _quantity <= variant.maxSupply,\n            \"MaisonMargielaVaultManager::adminMint:Max supply reached\"\n        );\n\n        // keeps track of the MM NFT to transfer from the aura contract\n        uint256 startingNftToTransfer;\n        // Calculate which NFT to transfer\n        if (_variantId == 1) {\n            // If variantId is 1, then the starting NFT to transfer is the number of units sold + 1\n            startingNftToTransfer = variant.unitsSold + 1;\n        } else {\n            uint256 variant1MaxSupply = VARIANT_1_MAX_SUPPLY;\n            // If variantId is 2, then the starting NFT to transfer is variant1 maxSupply (15) + 1, then add the number of v2 units sold\n            startingNftToTransfer = variant1MaxSupply + 1 + variant.unitsSold;\n        }\n\n        for (uint256 j = startingNftToTransfer; j < (_quantity + startingNftToTransfer); j++) {\n            // Transfer MM NFTs from the admin address to the _to address\n            auraContract.safeTransferFrom(mmVaultAddress, _to, j);\n\n            emit NftMinted(j, _variantId, _to);\n        }\n\n        variant.unitsSold += uint16(_quantity);\n\n        _safeMint(_to, _quantity);\n    }\n\n    /// @notice External function to mint tokens using the access list. Only address on the access list can mint\n    /// @param _to Address to mint tokens to\n    /// @param _quantity Number of tokens to mint\n    /// @param _variantId Variant ID of the token to mint\n    /// @dev Users can only mint if the dev mint sale is open, the batchSize (quantity) is less than 5 but not 0, and the variantId is between 1 and 7. Used for treasury minting, so there is no associated payment fee.\n    function accessListMint(address _to, uint256 _quantity, uint32 _variantId)\n        external\n        payable\n        nonReentrant\n        whenNotPaused\n    {\n        require(accessList[msg.sender], \"MaisonMargielaVaultManager::accessListMint:Sender not on access list\");\n\n        SaleConfig memory saleC = saleConfig;\n        VariantData storage variant = _variantData[_variantId];\n\n        require(_to != address(0), \"MaisonMargielaVaultManager::accessListMint:Cannot mint to 0 address\");\n        require(saleC.devMintIsOpen, \"MaisonMargielaVaultManager::accessListMint:Dev mint closed\");\n        require(\n            _quantity <= saleC.maxBatchSize && _quantity != 0,\n            \"MaisonMargielaVaultManager::accessListMint:Unsupported quantity\"\n        );\n        require(variant.isSet, \"MaisonMargielaVaultManager::accessListMint:Variant ID not set\");\n        require(\n            variant.unitsSold + _quantity <= variant.maxSupply, \"MaisonMargielaVaultManager::mint:Max supply reached\"\n        );\n\n        // keeps track of the MM NFT to transfer from the aura contract\n        uint256 startingNftToTransfer;\n        // Calculate which NFT to transfer\n        if (_variantId == 1) {\n            // If variantId is 1, then the starting NFT to transfer is the number of units sold + 1\n            startingNftToTransfer = variant.unitsSold + 1;\n        } else {\n            uint256 variant1MaxSupply = VARIANT_1_MAX_SUPPLY;\n            // If variantId is 2, then the starting NFT to transfer is variant1 maxSupply (15) + 1, then add the number of v2 units sold\n            startingNftToTransfer = variant1MaxSupply + 1 + variant.unitsSold;\n        }\n\n        for (uint256 j = startingNftToTransfer; j < (_quantity + startingNftToTransfer); j++) {\n            // Transfer MM NFTs from the admin address to the _to address\n            auraContract.safeTransferFrom(mmVaultAddress, _to, j);\n\n            emit NftMinted(j, _variantId, _to);\n        }\n\n        variant.unitsSold += uint16(_quantity);\n\n        _safeMint(_to, _quantity);\n    }\n\n    /// @notice Sets the maximum supply for a specific variant.\n    /// @dev Can only be called by the contract owner.\n    /// @param _variantId The ID of the variant for which to set the maximum supply.\n    /// @param _maxSupply The new maximum supply to set for the specified variant.\n    function setVariantMaxSupply(uint32 _variantId, uint16 _maxSupply) external onlyOwner {\n        _variantData[_variantId].maxSupply = _maxSupply;\n    }\n\n    /// @notice Updates the address of the Aura contract.\n    /// @dev Sets the `_auraContractAddress` as the new address for the Aura contract interface\n    /// @param _auraContractAddress The new address of the Aura contract.\n    function setAuraContractAddress(address _auraContractAddress) external onlyOwner {\n        auraContract = AuraInterface(_auraContractAddress);\n    }\n\n    /// @notice Updates the address of the Market Making (MM) Vault.\n    /// @dev Sets the `_mmVaultAddress` as the new address for the Market Making Vault.\n    /// @param _mmVaultAddress The new address for the Market Making Vault.\n    function setMMVaultAddress(address _mmVaultAddress) external onlyOwner {\n        mmVaultAddress = _mmVaultAddress;\n    }\n\n    /// @notice External function to set the default royalty receiver and fee\n    /// @param _receiver Address to receive royalties\n    /// @param _feeNumerator Numerator of the royalty fee\n    function setDefaultRoyalty(address _receiver, uint96 _feeNumerator) external onlyOwner whenNotPaused {\n        _setDefaultRoyalty(_receiver, _feeNumerator);\n\n        emit DefaultRoyaltyUpdated(_receiver, _feeNumerator);\n    }\n\n    /// @notice External function to set the mint royalty receiver\n    /// @param _receiver Address to receive royalties\n    function setMintRoyaltyReceiver(address _receiver) external onlyOwner whenNotPaused {\n        require(\n            _receiver != address(0), \"MaisonMargielaVaultManager::setMintRoyaltyReceiver:Receiver cannot be 0 address\"\n        );\n        mintRoyaltyReceiver = _receiver;\n    }\n\n    /// @notice External function to set the sale to open or closed\n    /// @param _isOpen Boolean indicating if the sale is open or closed\n    function setIsOpen(bool _isOpen) external onlyOwner whenNotPaused {\n        saleConfig.isOpen = _isOpen;\n\n        emit SaleIsOpenUpdated(_isOpen);\n    }\n\n    /// @notice External function to set the dev minting to open or closed\n    /// @param _isOpen Boolean indicating if the dev minting is open or closed\n    function setDevMintIsOpen(bool _isOpen) external onlyOwner whenNotPaused {\n        saleConfig.devMintIsOpen = _isOpen;\n\n        emit DevMintIsOpenUpdated(_isOpen);\n    }\n\n    /// @notice External function to set the price of a single variant\n    /// @param _variantId Variant ID of the variant to set the price for\n    /// @param _price Price to set for the variant\n    function setVariantPrice(uint32 _variantId, uint256 _price) external onlyOwner whenNotPaused {\n        require(_variantData[_variantId].isSet, \"MaisonMargielaVaultManager::setVariantPrice:Variant ID not set\");\n        _variantData[_variantId].price = _price;\n\n        emit VariantPriceUpdated(_variantId, _price);\n    }\n\n    /// @notice External function to update the access list\n    /// @param _addresses Array of addresses to update\n    /// @param _allowed Array of booleans indicating if the address is allowed to mint\n    /// @dev Access list for dev/treasury minting should be small to keep gas costs low when calling. 5 addresses or less is ideal\n    function updateAccessList(address[] memory _addresses, bool[] memory _allowed) external onlyOwner whenNotPaused {\n        require(\n            _addresses.length == _allowed.length,\n            \"MaisonMargielaVaultManager::updateAccessList:Array lengths do not match\"\n        );\n        for (uint256 i = 0; i < _addresses.length; i++) {\n            accessList[_addresses[i]] = _allowed[i];\n        }\n\n        emit AccessListUpdated(_addresses, _allowed);\n    }\n\n    /// @notice External function to update the base URI\n    /// @param _uri New base URI\n    function setBaseURI(string memory _uri) public onlyOwner whenNotPaused {\n        _baseTokenURI = _uri;\n\n        emit BaseURIUpdated(_uri);\n    }\n\n    /// @notice External function to pause the contract\n    function pause() external onlyOwner {\n        _pause();\n    }\n\n    /// @notice External function to unpause the contract\n    function unpause() external onlyOwner {\n        _unpause();\n    }\n\n    /// @notice External function to withdraw payments\n    function withdrawPayment() external onlyOwner nonReentrant whenNotPaused {\n        uint256 contractBalance = address(this).balance;\n        (bool success,) = mintRoyaltyReceiver.call{value: address(this).balance}(\"\");\n        require(success, \"MaisonMargielaVaultManager::withdrawPayment:Transfer failed.\");\n\n        emit PaymentWithdrawn(mintRoyaltyReceiver, contractBalance);\n    }\n\n    /*//////////////////////////////////////////////////////////////\n                    EXTERNAL/PUBLIC VIEW FUNCTIONS\n    //////////////////////////////////////////////////////////////*/\n\n    /// @notice External function to get the owner of a MM NFT, NOT the dummy NFT\n    function ownerOf(uint256 tokenId) public view override returns (address) {\n        return auraContract.ownerOf(tokenId);\n    }\n\n    /// @notice External function to get the base URI\n    function baseURI() external view returns (string memory) {\n        return _baseURI();\n    }\n\n    /// @notice External function to get the current saleData\n    /// @dev Returns a SaleData struct\n    /// @dev Number of variants is 7\n    function saleData() external view returns (SaleData memory) {\n        // Calculate variantData mapping length\n        // i = 1: variantIds always start from 1\n        // .isSet indicates if variantData is set for that variantId. Break if it isn't.\n        uint32 variantDataLength;\n        for (uint8 i = 1; i < type(uint8).max; i++) {\n            if (_variantData[i].isSet) {\n                variantDataLength++;\n            } else {\n                break;\n            }\n        }\n\n        SaleData memory _saleData;\n\n        _saleData.isOpen = saleConfig.isOpen;\n        _saleData.maxBatchSize = maxBatchSize();\n\n        _saleData.totalSupply = uint32(totalSupply());\n\n        // Set array lengths for _saleData\n        _saleData.allowedVariants = new uint32[](variantDataLength);\n        _saleData.variantPrices = new uint256[](variantDataLength);\n        _saleData.unitsSold = new uint16[](variantDataLength);\n\n        for (uint8 i = 0; i < variantDataLength; i++) {\n            // variantData starts at index 1 as the variantId matches the key in the mapping\n            uint8 variantKey = i + 1;\n            VariantData memory variant = _variantData[variantKey];\n\n            if (!variant.isSet) break;\n\n            _saleData.allowedVariants[i] = variant.variantId;\n            _saleData.variantPrices[i] = variant.price;\n            _saleData.unitsSold[i] = variant.unitsSold;\n        }\n\n        return _saleData;\n    }\n\n    /// @notice External function to get the tokenURI for a given variantId\n    /// @param _tokenId Token ID to get the uri for\n    /// @dev returns an empty string as the dummy NFTs are not used!\n    /// @dev use the tokenURI() on aura contract to get aura NFT URI!\n    function tokenURI(uint256 _tokenId) public view override returns (string memory) {\n        // A dummy NFT has to have been minted to get the MM NFT tokenURI\n        require(_exists(_tokenId), \"MaisonMargielaVaultManager::tokeURI:ERC721Metadata:URI query for nonexistent token\");\n\n        return \"\";\n    }\n\n    /// @notice External function to get the number of tokens minted for a given address\n    /// @param _owner Address to get the number of tokens minted for\n    function numberMinted(address _owner) public view returns (uint256) {\n        return _numberMinted(_owner);\n    }\n\n    /// @notice External function to get the maxBatchSize\n    function maxBatchSize() public view returns (uint16) {\n        return saleConfig.maxBatchSize;\n    }\n\n    /// @notice External function to get the variantData for a given variantId\n    /// @param _variantId Variant ID to get the variantData for\n    function variantData(uint32 _variantId) public view returns (VariantData memory) {\n        require(_variantData[_variantId].isSet, \"MaisonMargielaVaultManager::variantData:Variant ID not set\");\n        return _variantData[_variantId];\n    }\n\n    /// @notice External function to indicate which interfaces are supported\n    /// @param interfaceId Interface ID to check if supported\n    function supportsInterface(bytes4 interfaceId) public view virtual override(ERC721A, ERC2981) returns (bool) {\n        // Supports the following `interfaceId`s:\n        // - IERC165: 0x01ffc9a7\n        // - IERC721: 0x80ac58cd\n        // - IERC721Metadata: 0x5b5e139f\n        // - IERC2981: 0x2a55205a\n        return ERC721A.supportsInterface(interfaceId) || ERC2981.supportsInterface(interfaceId);\n    }\n}\n"
      },
      "lib/openzeppelin-contracts/contracts/access/Ownable.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (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. Can only be called by the current owner.\n     *\n     * NOTE: Renouncing ownership will leave the contract without an owner,\n     * thereby disabling 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"
      },
      "lib/openzeppelin-contracts/contracts/security/ReentrancyGuard.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (security/ReentrancyGuard.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Contract module that helps prevent reentrant calls to a function.\n *\n * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier\n * available, which can be applied to functions to make sure there are no nested\n * (reentrant) calls to them.\n *\n * Note that because there is a single `nonReentrant` guard, functions marked as\n * `nonReentrant` may not call one another. This can be worked around by making\n * those functions `private`, and then adding `external` `nonReentrant` entry\n * points to them.\n *\n * TIP: If you would like to learn more about reentrancy and alternative ways\n * to protect against it, check out our blog post\n * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].\n */\nabstract contract ReentrancyGuard {\n    // Booleans are more expensive than uint256 or any type that takes up a full\n    // word because each write operation emits an extra SLOAD to first read the\n    // slot's contents, replace the bits taken up by the boolean, and then write\n    // back. This is the compiler's defense against contract upgrades and\n    // pointer aliasing, and it cannot be disabled.\n\n    // The values being non-zero value makes deployment a bit more expensive,\n    // but in exchange the refund on every call to nonReentrant will be lower in\n    // amount. Since refunds are capped to a percentage of the total\n    // transaction's gas, it is best to keep them low in cases like this one, to\n    // increase the likelihood of the full refund coming into effect.\n    uint256 private constant _NOT_ENTERED = 1;\n    uint256 private constant _ENTERED = 2;\n\n    uint256 private _status;\n\n    constructor() {\n        _status = _NOT_ENTERED;\n    }\n\n    /**\n     * @dev Prevents a contract from calling itself, directly or indirectly.\n     * Calling a `nonReentrant` function from another `nonReentrant`\n     * function is not supported. It is possible to prevent this from happening\n     * by making the `nonReentrant` function external, and making it call a\n     * `private` function that does the actual work.\n     */\n    modifier nonReentrant() {\n        _nonReentrantBefore();\n        _;\n        _nonReentrantAfter();\n    }\n\n    function _nonReentrantBefore() private {\n        // On the first call to nonReentrant, _status will be _NOT_ENTERED\n        require(_status != _ENTERED, \"ReentrancyGuard: reentrant call\");\n\n        // Any calls to nonReentrant after this point will fail\n        _status = _ENTERED;\n    }\n\n    function _nonReentrantAfter() private {\n        // By storing the original value once again, a refund is triggered (see\n        // https://eips.ethereum.org/EIPS/eip-2200)\n        _status = _NOT_ENTERED;\n    }\n\n    /**\n     * @dev Returns true if the reentrancy guard is currently set to \"entered\", which indicates there is a\n     * `nonReentrant` function in the call stack.\n     */\n    function _reentrancyGuardEntered() internal view returns (bool) {\n        return _status == _ENTERED;\n    }\n}\n"
      },
      "lib/openzeppelin-contracts/contracts/security/Pausable.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.7.0) (security/Pausable.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../utils/Context.sol\";\n\n/**\n * @dev Contract module which allows children to implement an emergency stop\n * mechanism that can be triggered by an authorized account.\n *\n * This module is used through inheritance. It will make available the\n * modifiers `whenNotPaused` and `whenPaused`, which can be applied to\n * the functions of your contract. Note that they will not be pausable by\n * simply including this module, only once the modifiers are put in place.\n */\nabstract contract Pausable is Context {\n    /**\n     * @dev Emitted when the pause is triggered by `account`.\n     */\n    event Paused(address account);\n\n    /**\n     * @dev Emitted when the pause is lifted by `account`.\n     */\n    event Unpaused(address account);\n\n    bool private _paused;\n\n    /**\n     * @dev Initializes the contract in unpaused state.\n     */\n    constructor() {\n        _paused = false;\n    }\n\n    /**\n     * @dev Modifier to make a function callable only when the contract is not paused.\n     *\n     * Requirements:\n     *\n     * - The contract must not be paused.\n     */\n    modifier whenNotPaused() {\n        _requireNotPaused();\n        _;\n    }\n\n    /**\n     * @dev Modifier to make a function callable only when the contract is paused.\n     *\n     * Requirements:\n     *\n     * - The contract must be paused.\n     */\n    modifier whenPaused() {\n        _requirePaused();\n        _;\n    }\n\n    /**\n     * @dev Returns true if the contract is paused, and false otherwise.\n     */\n    function paused() public view virtual returns (bool) {\n        return _paused;\n    }\n\n    /**\n     * @dev Throws if the contract is paused.\n     */\n    function _requireNotPaused() internal view virtual {\n        require(!paused(), \"Pausable: paused\");\n    }\n\n    /**\n     * @dev Throws if the contract is not paused.\n     */\n    function _requirePaused() internal view virtual {\n        require(paused(), \"Pausable: not paused\");\n    }\n\n    /**\n     * @dev Triggers stopped state.\n     *\n     * Requirements:\n     *\n     * - The contract must not be paused.\n     */\n    function _pause() internal virtual whenNotPaused {\n        _paused = true;\n        emit Paused(_msgSender());\n    }\n\n    /**\n     * @dev Returns to normal state.\n     *\n     * Requirements:\n     *\n     * - The contract must be paused.\n     */\n    function _unpause() internal virtual whenPaused {\n        _paused = false;\n        emit Unpaused(_msgSender());\n    }\n}\n"
      },
      "lib/openzeppelin-contracts/contracts/utils/Strings.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (utils/Strings.sol)\n\npragma solidity ^0.8.0;\n\nimport \"./math/Math.sol\";\nimport \"./math/SignedMath.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 `int256` to its ASCII `string` decimal representation.\n     */\n    function toString(int256 value) internal pure returns (string memory) {\n        return string(abi.encodePacked(value < 0 ? \"-\" : \"\", toString(SignedMath.abs(value))));\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    /**\n     * @dev Returns true if the two strings are equal.\n     */\n    function equal(string memory a, string memory b) internal pure returns (bool) {\n        return keccak256(bytes(a)) == keccak256(bytes(b));\n    }\n}\n"
      },
      "lib/openzeppelin-contracts/contracts/token/common/ERC2981.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (token/common/ERC2981.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../../interfaces/IERC2981.sol\";\nimport \"../../utils/introspection/ERC165.sol\";\n\n/**\n * @dev Implementation of the NFT Royalty Standard, a standardized way to retrieve royalty payment information.\n *\n * Royalty information can be specified globally for all token ids via {_setDefaultRoyalty}, and/or individually for\n * specific token ids via {_setTokenRoyalty}. The latter takes precedence over the first.\n *\n * Royalty is specified as a fraction of sale price. {_feeDenominator} is overridable but defaults to 10000, meaning the\n * fee is specified in basis points by default.\n *\n * IMPORTANT: ERC-2981 only specifies a way to signal royalty information and does not enforce its payment. See\n * https://eips.ethereum.org/EIPS/eip-2981#optional-royalty-payments[Rationale] in the EIP. Marketplaces are expected to\n * voluntarily pay royalties together with sales, but note that this standard is not yet widely supported.\n *\n * _Available since v4.5._\n */\nabstract contract ERC2981 is IERC2981, ERC165 {\n    struct RoyaltyInfo {\n        address receiver;\n        uint96 royaltyFraction;\n    }\n\n    RoyaltyInfo private _defaultRoyaltyInfo;\n    mapping(uint256 => RoyaltyInfo) private _tokenRoyaltyInfo;\n\n    /**\n     * @dev See {IERC165-supportsInterface}.\n     */\n    function supportsInterface(bytes4 interfaceId) public view virtual override(IERC165, ERC165) returns (bool) {\n        return interfaceId == type(IERC2981).interfaceId || super.supportsInterface(interfaceId);\n    }\n\n    /**\n     * @inheritdoc IERC2981\n     */\n    function royaltyInfo(uint256 tokenId, uint256 salePrice) public view virtual override returns (address, uint256) {\n        RoyaltyInfo memory royalty = _tokenRoyaltyInfo[tokenId];\n\n        if (royalty.receiver == address(0)) {\n            royalty = _defaultRoyaltyInfo;\n        }\n\n        uint256 royaltyAmount = (salePrice * royalty.royaltyFraction) / _feeDenominator();\n\n        return (royalty.receiver, royaltyAmount);\n    }\n\n    /**\n     * @dev The denominator with which to interpret the fee set in {_setTokenRoyalty} and {_setDefaultRoyalty} as a\n     * fraction of the sale price. Defaults to 10000 so fees are expressed in basis points, but may be customized by an\n     * override.\n     */\n    function _feeDenominator() internal pure virtual returns (uint96) {\n        return 10000;\n    }\n\n    /**\n     * @dev Sets the royalty information that all ids in this contract will default to.\n     *\n     * Requirements:\n     *\n     * - `receiver` cannot be the zero address.\n     * - `feeNumerator` cannot be greater than the fee denominator.\n     */\n    function _setDefaultRoyalty(address receiver, uint96 feeNumerator) internal virtual {\n        require(feeNumerator <= _feeDenominator(), \"ERC2981: royalty fee will exceed salePrice\");\n        require(receiver != address(0), \"ERC2981: invalid receiver\");\n\n        _defaultRoyaltyInfo = RoyaltyInfo(receiver, feeNumerator);\n    }\n\n    /**\n     * @dev Removes default royalty information.\n     */\n    function _deleteDefaultRoyalty() internal virtual {\n        delete _defaultRoyaltyInfo;\n    }\n\n    /**\n     * @dev Sets the royalty information for a specific token id, overriding the global default.\n     *\n     * Requirements:\n     *\n     * - `receiver` cannot be the zero address.\n     * - `feeNumerator` cannot be greater than the fee denominator.\n     */\n    function _setTokenRoyalty(uint256 tokenId, address receiver, uint96 feeNumerator) internal virtual {\n        require(feeNumerator <= _feeDenominator(), \"ERC2981: royalty fee will exceed salePrice\");\n        require(receiver != address(0), \"ERC2981: Invalid parameters\");\n\n        _tokenRoyaltyInfo[tokenId] = RoyaltyInfo(receiver, feeNumerator);\n    }\n\n    /**\n     * @dev Resets royalty information for the token id back to the global default.\n     */\n    function _resetTokenRoyalty(uint256 tokenId) internal virtual {\n        delete _tokenRoyaltyInfo[tokenId];\n    }\n}\n"
      },
      "src/lib/token/ERC721A.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// ERC721A Contracts v4.2.3\n// Creator: Chiru Labs\n\npragma solidity ^0.8.4;\n\nimport \"../interfaces/IERC721A.sol\";\n\n/**\n * @dev Interface of ERC721 token receiver.\n */\ninterface ERC721A__IERC721Receiver {\n    function onERC721Received(address operator, address from, uint256 tokenId, bytes calldata data)\n        external\n        returns (bytes4);\n}\n\n/**\n * @title ERC721A\n *\n * @dev Implementation of the [ERC721](https://eips.ethereum.org/EIPS/eip-721)\n * Non-Fungible Token Standard, including the Metadata extension.\n * Optimized for lower gas during batch mints.\n *\n * Token IDs are minted in sequential order (e.g. 0, 1, 2, 3, ...)\n * starting from `_startTokenId()`.\n *\n * Assumptions:\n *\n * - An owner cannot have more than 2**64 - 1 (max value of uint64) of supply.\n * - The maximum token ID cannot exceed 2**256 - 1 (max value of uint256).\n */\ncontract ERC721A is IERC721A {\n    // Bypass for a `--via-ir` bug (https://github.com/chiru-labs/ERC721A/pull/364).\n    struct TokenApprovalRef {\n        address value;\n    }\n\n    // =============================================================\n    //                           CONSTANTS\n    // =============================================================\n\n    // Mask of an entry in packed address data.\n    uint256 private constant _BITMASK_ADDRESS_DATA_ENTRY = (1 << 64) - 1;\n\n    // The bit position of `numberMinted` in packed address data.\n    uint256 private constant _BITPOS_NUMBER_MINTED = 64;\n\n    // The bit position of `numberBurned` in packed address data.\n    uint256 private constant _BITPOS_NUMBER_BURNED = 128;\n\n    // The bit position of `aux` in packed address data.\n    uint256 private constant _BITPOS_AUX = 192;\n\n    // Mask of all 256 bits in packed address data except the 64 bits for `aux`.\n    uint256 private constant _BITMASK_AUX_COMPLEMENT = (1 << 192) - 1;\n\n    // The bit position of `startTimestamp` in packed ownership.\n    uint256 private constant _BITPOS_START_TIMESTAMP = 160;\n\n    // The bit mask of the `burned` bit in packed ownership.\n    uint256 private constant _BITMASK_BURNED = 1 << 224;\n\n    // The bit position of the `nextInitialized` bit in packed ownership.\n    uint256 private constant _BITPOS_NEXT_INITIALIZED = 225;\n\n    // The bit mask of the `nextInitialized` bit in packed ownership.\n    uint256 private constant _BITMASK_NEXT_INITIALIZED = 1 << 225;\n\n    // The bit position of `extraData` in packed ownership.\n    uint256 private constant _BITPOS_EXTRA_DATA = 232;\n\n    // Mask of all 256 bits in a packed ownership except the 24 bits for `extraData`.\n    uint256 private constant _BITMASK_EXTRA_DATA_COMPLEMENT = (1 << 232) - 1;\n\n    // The mask of the lower 160 bits for addresses.\n    uint256 private constant _BITMASK_ADDRESS = (1 << 160) - 1;\n\n    // The maximum `quantity` that can be minted with {_mintERC2309}.\n    // This limit is to prevent overflows on the address data entries.\n    // For a limit of 5000, a total of 3.689e15 calls to {_mintERC2309}\n    // is required to cause an overflow, which is unrealistic.\n    uint256 private constant _MAX_MINT_ERC2309_QUANTITY_LIMIT = 5000;\n\n    // The `Transfer` event signature is given by:\n    // `keccak256(bytes(\"Transfer(address,address,uint256)\"))`.\n    bytes32 private constant _TRANSFER_EVENT_SIGNATURE =\n        0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef;\n\n    // =============================================================\n    //                            STORAGE\n    // =============================================================\n\n    // The next token ID to be minted.\n    uint256 private _currentIndex;\n\n    // The number of tokens burned.\n    uint256 private _burnCounter;\n\n    // Token name\n    string private _name;\n\n    // Token symbol\n    string private _symbol;\n\n    // Mapping from token ID to ownership details\n    // An empty struct value does not necessarily mean the token is unowned.\n    // See {_packedOwnershipOf} implementation for details.\n    //\n    // Bits Layout:\n    // - [0..159]   `addr`\n    // - [160..223] `startTimestamp`\n    // - [224]      `burned`\n    // - [225]      `nextInitialized`\n    // - [232..255] `extraData`\n    mapping(uint256 => uint256) private _packedOwnerships;\n\n    // Mapping owner address to address data.\n    //\n    // Bits Layout:\n    // - [0..63]    `balance`\n    // - [64..127]  `numberMinted`\n    // - [128..191] `numberBurned`\n    // - [192..255] `aux`\n    mapping(address => uint256) private _packedAddressData;\n\n    // Mapping from token ID to approved address.\n    mapping(uint256 => TokenApprovalRef) private _tokenApprovals;\n\n    // Mapping from owner to operator approvals\n    mapping(address => mapping(address => bool)) private _operatorApprovals;\n\n    // =============================================================\n    //                          CONSTRUCTOR\n    // =============================================================\n\n    constructor(string memory name_, string memory symbol_) {\n        _name = name_;\n        _symbol = symbol_;\n        _currentIndex = _startTokenId();\n    }\n\n    // =============================================================\n    //                   TOKEN COUNTING OPERATIONS\n    // =============================================================\n\n    /**\n     * @dev Returns the starting token ID.\n     * To change the starting token ID, please override this function.\n     */\n    function _startTokenId() internal view virtual returns (uint256) {\n        return 0;\n    }\n\n    /**\n     * @dev Returns the next token ID to be minted.\n     */\n    function _nextTokenId() internal view virtual returns (uint256) {\n        return _currentIndex;\n    }\n\n    /**\n     * @dev Returns the total number of tokens in existence.\n     * Burned tokens will reduce the count.\n     * To get the total number of tokens minted, please see {_totalMinted}.\n     */\n    function totalSupply() public view virtual override returns (uint256) {\n        // Counter underflow is impossible as _burnCounter cannot be incremented\n        // more than `_currentIndex - _startTokenId()` times.\n        unchecked {\n            return _currentIndex - _burnCounter - _startTokenId();\n        }\n    }\n\n    /**\n     * @dev Returns the total amount of tokens minted in the contract.\n     */\n    function _totalMinted() internal view virtual returns (uint256) {\n        // Counter underflow is impossible as `_currentIndex` does not decrement,\n        // and it is initialized to `_startTokenId()`.\n        unchecked {\n            return _currentIndex - _startTokenId();\n        }\n    }\n\n    /**\n     * @dev Returns the total number of tokens burned.\n     */\n    function _totalBurned() internal view virtual returns (uint256) {\n        return _burnCounter;\n    }\n\n    // =============================================================\n    //                    ADDRESS DATA OPERATIONS\n    // =============================================================\n\n    /**\n     * @dev Returns the number of tokens in `owner`'s account.\n     */\n    function balanceOf(address owner) public view virtual override returns (uint256) {\n        if (owner == address(0)) _revert(BalanceQueryForZeroAddress.selector);\n        return _packedAddressData[owner] & _BITMASK_ADDRESS_DATA_ENTRY;\n    }\n\n    /**\n     * Returns the number of tokens minted by `owner`.\n     */\n    function _numberMinted(address owner) internal view returns (uint256) {\n        return (_packedAddressData[owner] >> _BITPOS_NUMBER_MINTED) & _BITMASK_ADDRESS_DATA_ENTRY;\n    }\n\n    /**\n     * Returns the number of tokens burned by or on behalf of `owner`.\n     */\n    function _numberBurned(address owner) internal view returns (uint256) {\n        return (_packedAddressData[owner] >> _BITPOS_NUMBER_BURNED) & _BITMASK_ADDRESS_DATA_ENTRY;\n    }\n\n    /**\n     * Returns the auxiliary data for `owner`. (e.g. number of whitelist mint slots used).\n     */\n    function _getAux(address owner) internal view returns (uint64) {\n        return uint64(_packedAddressData[owner] >> _BITPOS_AUX);\n    }\n\n    /**\n     * Sets the auxiliary data for `owner`. (e.g. number of whitelist mint slots used).\n     * If there are multiple variables, please pack them into a uint64.\n     */\n    function _setAux(address owner, uint64 aux) internal virtual {\n        uint256 packed = _packedAddressData[owner];\n        uint256 auxCasted;\n        // Cast `aux` with assembly to avoid redundant masking.\n        assembly {\n            auxCasted := aux\n        }\n        packed = (packed & _BITMASK_AUX_COMPLEMENT) | (auxCasted << _BITPOS_AUX);\n        _packedAddressData[owner] = packed;\n    }\n\n    // =============================================================\n    //                            IERC165\n    // =============================================================\n\n    /**\n     * @dev Returns true if this contract implements the interface defined by\n     * `interfaceId`. See the corresponding\n     * [EIP section](https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified)\n     * to learn more about how these ids are created.\n     *\n     * This function call must use less than 30000 gas.\n     */\n    function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {\n        // The interface IDs are constants representing the first 4 bytes\n        // of the XOR of all function selectors in the interface.\n        // See: [ERC165](https://eips.ethereum.org/EIPS/eip-165)\n        // (e.g. `bytes4(i.functionA.selector ^ i.functionB.selector ^ ...)`)\n        return interfaceId == 0x01ffc9a7 // ERC165 interface ID for ERC165.\n            || interfaceId == 0x80ac58cd // ERC165 interface ID for ERC721.\n            || interfaceId == 0x5b5e139f; // ERC165 interface ID for ERC721Metadata.\n    }\n\n    // =============================================================\n    //                        IERC721Metadata\n    // =============================================================\n\n    /**\n     * @dev Returns the token collection name.\n     */\n    function name() public view virtual override returns (string memory) {\n        return _name;\n    }\n\n    /**\n     * @dev Returns the token collection symbol.\n     */\n    function symbol() public view virtual override returns (string memory) {\n        return _symbol;\n    }\n\n    /**\n     * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token.\n     */\n    function tokenURI(uint256 tokenId) public view virtual override returns (string memory) {\n        if (!_exists(tokenId)) _revert(URIQueryForNonexistentToken.selector);\n\n        string memory baseURI = _baseURI();\n        return bytes(baseURI).length != 0 ? string(abi.encodePacked(baseURI, _toString(tokenId))) : \"\";\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, it can be overridden in child contracts.\n     */\n    function _baseURI() internal view virtual returns (string memory) {\n        return \"\";\n    }\n\n    // =============================================================\n    //                     OWNERSHIPS OPERATIONS\n    // =============================================================\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) public view virtual override returns (address) {\n        return address(uint160(_packedOwnershipOf(tokenId)));\n    }\n\n    /**\n     * @dev Gas spent here starts off proportional to the maximum mint batch size.\n     * It gradually moves to O(1) as tokens get transferred around over time.\n     */\n    function _ownershipOf(uint256 tokenId) internal view virtual returns (TokenOwnership memory) {\n        return _unpackedOwnership(_packedOwnershipOf(tokenId));\n    }\n\n    /**\n     * @dev Returns the unpacked `TokenOwnership` struct at `index`.\n     */\n    function _ownershipAt(uint256 index) internal view virtual returns (TokenOwnership memory) {\n        return _unpackedOwnership(_packedOwnerships[index]);\n    }\n\n    /**\n     * @dev Returns whether the ownership slot at `index` is initialized.\n     * An uninitialized slot does not necessarily mean that the slot has no owner.\n     */\n    function _ownershipIsInitialized(uint256 index) internal view virtual returns (bool) {\n        return _packedOwnerships[index] != 0;\n    }\n\n    /**\n     * @dev Initializes the ownership slot minted at `index` for efficiency purposes.\n     */\n    function _initializeOwnershipAt(uint256 index) internal virtual {\n        if (_packedOwnerships[index] == 0) {\n            _packedOwnerships[index] = _packedOwnershipOf(index);\n        }\n    }\n\n    /**\n     * Returns the packed ownership data of `tokenId`.\n     */\n    function _packedOwnershipOf(uint256 tokenId) private view returns (uint256 packed) {\n        if (_startTokenId() <= tokenId) {\n            packed = _packedOwnerships[tokenId];\n            // If the data at the starting slot does not exist, start the scan.\n            if (packed == 0) {\n                if (tokenId >= _currentIndex) _revert(OwnerQueryForNonexistentToken.selector);\n                // Invariant:\n                // There will always be an initialized ownership slot\n                // (i.e. `ownership.addr != address(0) && ownership.burned == false`)\n                // before an unintialized ownership slot\n                // (i.e. `ownership.addr == address(0) && ownership.burned == false`)\n                // Hence, `tokenId` will not underflow.\n                //\n                // We can directly compare the packed value.\n                // If the address is zero, packed will be zero.\n                for (;;) {\n                    unchecked {\n                        packed = _packedOwnerships[--tokenId];\n                    }\n                    if (packed == 0) continue;\n                    if (packed & _BITMASK_BURNED == 0) return packed;\n                    // Otherwise, the token is burned, and we must revert.\n                    // This handles the case of batch burned tokens, where only the burned bit\n                    // of the starting slot is set, and remaining slots are left uninitialized.\n                    _revert(OwnerQueryForNonexistentToken.selector);\n                }\n            }\n            // Otherwise, the data exists and we can skip the scan.\n            // This is possible because we have already achieved the target condition.\n            // This saves 2143 gas on transfers of initialized tokens.\n            // If the token is not burned, return `packed`. Otherwise, revert.\n            if (packed & _BITMASK_BURNED == 0) return packed;\n        }\n        _revert(OwnerQueryForNonexistentToken.selector);\n    }\n\n    /**\n     * @dev Returns the unpacked `TokenOwnership` struct from `packed`.\n     */\n    function _unpackedOwnership(uint256 packed) private pure returns (TokenOwnership memory ownership) {\n        ownership.addr = address(uint160(packed));\n        ownership.startTimestamp = uint64(packed >> _BITPOS_START_TIMESTAMP);\n        ownership.burned = packed & _BITMASK_BURNED != 0;\n        ownership.extraData = uint24(packed >> _BITPOS_EXTRA_DATA);\n    }\n\n    /**\n     * @dev Packs ownership data into a single uint256.\n     */\n    function _packOwnershipData(address owner, uint256 flags) private view returns (uint256 result) {\n        assembly {\n            // Mask `owner` to the lower 160 bits, in case the upper bits somehow aren't clean.\n            owner := and(owner, _BITMASK_ADDRESS)\n            // `owner | (block.timestamp << _BITPOS_START_TIMESTAMP) | flags`.\n            result := or(owner, or(shl(_BITPOS_START_TIMESTAMP, timestamp()), flags))\n        }\n    }\n\n    /**\n     * @dev Returns the `nextInitialized` flag set if `quantity` equals 1.\n     */\n    function _nextInitializedFlag(uint256 quantity) private pure returns (uint256 result) {\n        // For branchless setting of the `nextInitialized` flag.\n        assembly {\n            // `(quantity == 1) << _BITPOS_NEXT_INITIALIZED`.\n            result := shl(_BITPOS_NEXT_INITIALIZED, eq(quantity, 1))\n        }\n    }\n\n    // =============================================================\n    //                      APPROVAL OPERATIONS\n    // =============================================================\n\n    /**\n     * @dev Gives permission to `to` to transfer `tokenId` token to another account. See {ERC721A-_approve}.\n     *\n     * Requirements:\n     *\n     * - The caller must own the token or be an approved operator.\n     */\n    function approve(address to, uint256 tokenId) public payable virtual override {\n        _approve(to, tokenId, true);\n    }\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) public view virtual override returns (address) {\n        if (!_exists(tokenId)) _revert(ApprovalQueryForNonexistentToken.selector);\n\n        return _tokenApprovals[tokenId].value;\n    }\n\n    /**\n     * @dev Approve or remove `operator` as an operator for the caller.\n     * Operators can call {transferFrom} or {safeTransferFrom}\n     * 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) public virtual override {\n        _operatorApprovals[_msgSenderERC721A()][operator] = approved;\n        emit ApprovalForAll(_msgSenderERC721A(), operator, approved);\n    }\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) public view virtual override returns (bool) {\n        return _operatorApprovals[owner][operator];\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. See {_mint}.\n     */\n    function _exists(uint256 tokenId) internal view virtual returns (bool result) {\n        if (_startTokenId() <= tokenId) {\n            if (tokenId < _currentIndex) {\n                uint256 packed;\n                while ((packed = _packedOwnerships[tokenId]) == 0) --tokenId;\n                result = packed & _BITMASK_BURNED == 0;\n            }\n        }\n    }\n\n    /**\n     * @dev Returns whether `msgSender` is equal to `approvedAddress` or `owner`.\n     */\n    function _isSenderApprovedOrOwner(address approvedAddress, address owner, address msgSender)\n        private\n        pure\n        returns (bool result)\n    {\n        assembly {\n            // Mask `owner` to the lower 160 bits, in case the upper bits somehow aren't clean.\n            owner := and(owner, _BITMASK_ADDRESS)\n            // Mask `msgSender` to the lower 160 bits, in case the upper bits somehow aren't clean.\n            msgSender := and(msgSender, _BITMASK_ADDRESS)\n            // `msgSender == owner || msgSender == approvedAddress`.\n            result := or(eq(msgSender, owner), eq(msgSender, approvedAddress))\n        }\n    }\n\n    /**\n     * @dev Returns the storage slot and value for the approved address of `tokenId`.\n     */\n    function _getApprovedSlotAndAddress(uint256 tokenId)\n        private\n        view\n        returns (uint256 approvedAddressSlot, address approvedAddress)\n    {\n        TokenApprovalRef storage tokenApproval = _tokenApprovals[tokenId];\n        // The following is equivalent to `approvedAddress = _tokenApprovals[tokenId].value`.\n        assembly {\n            approvedAddressSlot := tokenApproval.slot\n            approvedAddress := sload(approvedAddressSlot)\n        }\n    }\n\n    // =============================================================\n    //                      TRANSFER OPERATIONS\n    // =============================================================\n\n    /**\n     * @dev Transfers `tokenId` 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 be owned by `from`.\n     * - If the caller is not `from`, it must be approved to move this token\n     * by either {approve} or {setApprovalForAll}.\n     *\n     * Emits a {Transfer} event.\n     */\n    function transferFrom(address from, address to, uint256 tokenId) public payable virtual override {\n        uint256 prevOwnershipPacked = _packedOwnershipOf(tokenId);\n\n        // Mask `from` to the lower 160 bits, in case the upper bits somehow aren't clean.\n        from = address(uint160(uint256(uint160(from)) & _BITMASK_ADDRESS));\n\n        if (address(uint160(prevOwnershipPacked)) != from) _revert(TransferFromIncorrectOwner.selector);\n\n        (uint256 approvedAddressSlot, address approvedAddress) = _getApprovedSlotAndAddress(tokenId);\n\n        // The nested ifs save around 20+ gas over a compound boolean condition.\n        if (!_isSenderApprovedOrOwner(approvedAddress, from, _msgSenderERC721A())) {\n            if (!isApprovedForAll(from, _msgSenderERC721A())) _revert(TransferCallerNotOwnerNorApproved.selector);\n        }\n\n        _beforeTokenTransfers(from, to, tokenId, 1);\n\n        // Clear approvals from the previous owner.\n        assembly {\n            if approvedAddress {\n                // This is equivalent to `delete _tokenApprovals[tokenId]`.\n                sstore(approvedAddressSlot, 0)\n            }\n        }\n\n        // Underflow of the sender's balance is impossible because we check for\n        // ownership above and the recipient's balance can't realistically overflow.\n        // Counter overflow is incredibly unrealistic as `tokenId` would have to be 2**256.\n        unchecked {\n            // We can directly increment and decrement the balances.\n            --_packedAddressData[from]; // Updates: `balance -= 1`.\n            ++_packedAddressData[to]; // Updates: `balance += 1`.\n\n            // Updates:\n            // - `address` to the next owner.\n            // - `startTimestamp` to the timestamp of transfering.\n            // - `burned` to `false`.\n            // - `nextInitialized` to `true`.\n            _packedOwnerships[tokenId] =\n                _packOwnershipData(to, _BITMASK_NEXT_INITIALIZED | _nextExtraData(from, to, prevOwnershipPacked));\n\n            // If the next slot may not have been initialized (i.e. `nextInitialized == false`) .\n            if (prevOwnershipPacked & _BITMASK_NEXT_INITIALIZED == 0) {\n                uint256 nextTokenId = tokenId + 1;\n                // If the next slot's address is zero and not burned (i.e. packed value is zero).\n                if (_packedOwnerships[nextTokenId] == 0) {\n                    // If the next slot is within bounds.\n                    if (nextTokenId != _currentIndex) {\n                        // Initialize the next slot to maintain correctness for `ownerOf(tokenId + 1)`.\n                        _packedOwnerships[nextTokenId] = prevOwnershipPacked;\n                    }\n                }\n            }\n        }\n\n        // Mask `to` to the lower 160 bits, in case the upper bits somehow aren't clean.\n        uint256 toMasked = uint256(uint160(to)) & _BITMASK_ADDRESS;\n        assembly {\n            // Emit the `Transfer` event.\n            log4(\n                0, // Start of data (0, since no data).\n                0, // End of data (0, since no data).\n                _TRANSFER_EVENT_SIGNATURE, // Signature.\n                from, // `from`.\n                toMasked, // `to`.\n                tokenId // `tokenId`.\n            )\n        }\n        if (toMasked == 0) _revert(TransferToZeroAddress.selector);\n\n        _afterTokenTransfers(from, to, tokenId, 1);\n    }\n\n    /**\n     * @dev Equivalent to `safeTransferFrom(from, to, tokenId, '')`.\n     */\n    function safeTransferFrom(address from, address to, uint256 tokenId) public payable virtual override {\n        safeTransferFrom(from, to, tokenId, \"\");\n    }\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\n     * by either {approve} or {setApprovalForAll}.\n     * - If `to` refers to a smart contract, it must implement\n     * {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\n     *\n     * Emits a {Transfer} event.\n     */\n    function safeTransferFrom(address from, address to, uint256 tokenId, bytes memory _data)\n        public\n        payable\n        virtual\n        override\n    {\n        transferFrom(from, to, tokenId);\n        if (to.code.length != 0) {\n            if (!_checkContractOnERC721Received(from, to, tokenId, _data)) {\n                _revert(TransferToNonERC721ReceiverImplementer.selector);\n            }\n        }\n    }\n\n    /**\n     * @dev Hook that is called before a set of serially-ordered token IDs\n     * are about to be transferred. This includes minting.\n     * And also called before burning one token.\n     *\n     * `startTokenId` - the first token ID to be transferred.\n     * `quantity` - the amount to be transferred.\n     *\n     * Calling conditions:\n     *\n     * - When `from` and `to` are both non-zero, `from`'s `tokenId` will be\n     * transferred to `to`.\n     * - When `from` is zero, `tokenId` will be minted for `to`.\n     * - When `to` is zero, `tokenId` will be burned by `from`.\n     * - `from` and `to` are never both zero.\n     */\n    function _beforeTokenTransfers(address from, address to, uint256 startTokenId, uint256 quantity) internal virtual {}\n\n    /**\n     * @dev Hook that is called after a set of serially-ordered token IDs\n     * have been transferred. This includes minting.\n     * And also called after one token has been burned.\n     *\n     * `startTokenId` - the first token ID to be transferred.\n     * `quantity` - the amount to be transferred.\n     *\n     * Calling conditions:\n     *\n     * - When `from` and `to` are both non-zero, `from`'s `tokenId` has been\n     * transferred to `to`.\n     * - When `from` is zero, `tokenId` has been minted for `to`.\n     * - When `to` is zero, `tokenId` has been burned by `from`.\n     * - `from` and `to` are never both zero.\n     */\n    function _afterTokenTransfers(address from, address to, uint256 startTokenId, uint256 quantity) internal virtual {}\n\n    /**\n     * @dev Private function to invoke {IERC721Receiver-onERC721Received} on a target contract.\n     *\n     * `from` - Previous owner of the given token ID.\n     * `to` - Target address that will receive the token.\n     * `tokenId` - Token ID to be transferred.\n     * `_data` - Optional data to send along with the call.\n     *\n     * Returns whether the call correctly returned the expected magic value.\n     */\n    function _checkContractOnERC721Received(address from, address to, uint256 tokenId, bytes memory _data)\n        private\n        returns (bool)\n    {\n        try ERC721A__IERC721Receiver(to).onERC721Received(_msgSenderERC721A(), from, tokenId, _data) returns (\n            bytes4 retval\n        ) {\n            return retval == ERC721A__IERC721Receiver(to).onERC721Received.selector;\n        } catch (bytes memory reason) {\n            if (reason.length == 0) {\n                _revert(TransferToNonERC721ReceiverImplementer.selector);\n            }\n            assembly {\n                revert(add(32, reason), mload(reason))\n            }\n        }\n    }\n\n    // =============================================================\n    //                        MINT OPERATIONS\n    // =============================================================\n\n    /**\n     * @dev Mints `quantity` tokens and transfers them to `to`.\n     *\n     * Requirements:\n     *\n     * - `to` cannot be the zero address.\n     * - `quantity` must be greater than 0.\n     *\n     * Emits a {Transfer} event for each mint.\n     */\n    function _mint(address to, uint256 quantity) internal virtual {\n        uint256 startTokenId = _currentIndex;\n        if (quantity == 0) _revert(MintZeroQuantity.selector);\n\n        _beforeTokenTransfers(address(0), to, startTokenId, quantity);\n\n        // Overflows are incredibly unrealistic.\n        // `balance` and `numberMinted` have a maximum limit of 2**64.\n        // `tokenId` has a maximum limit of 2**256.\n        unchecked {\n            // Updates:\n            // - `address` to the owner.\n            // - `startTimestamp` to the timestamp of minting.\n            // - `burned` to `false`.\n            // - `nextInitialized` to `quantity == 1`.\n            _packedOwnerships[startTokenId] =\n                _packOwnershipData(to, _nextInitializedFlag(quantity) | _nextExtraData(address(0), to, 0));\n\n            // Updates:\n            // - `balance += quantity`.\n            // - `numberMinted += quantity`.\n            //\n            // We can directly add to the `balance` and `numberMinted`.\n            _packedAddressData[to] += quantity * ((1 << _BITPOS_NUMBER_MINTED) | 1);\n\n            // Mask `to` to the lower 160 bits, in case the upper bits somehow aren't clean.\n            uint256 toMasked = uint256(uint160(to)) & _BITMASK_ADDRESS;\n\n            if (toMasked == 0) _revert(MintToZeroAddress.selector);\n\n            uint256 end = startTokenId + quantity;\n            uint256 tokenId = startTokenId;\n\n            do {\n                assembly {\n                    // Emit the `Transfer` event.\n                    log4(\n                        0, // Start of data (0, since no data).\n                        0, // End of data (0, since no data).\n                        _TRANSFER_EVENT_SIGNATURE, // Signature.\n                        0, // `address(0)`.\n                        toMasked, // `to`.\n                        tokenId // `tokenId`.\n                    )\n                }\n                // The `!=` check ensures that large values of `quantity`\n                // that overflows uint256 will make the loop run out of gas.\n            } while (++tokenId != end);\n\n            _currentIndex = end;\n        }\n        _afterTokenTransfers(address(0), to, startTokenId, quantity);\n    }\n\n    /**\n     * @dev Mints `quantity` tokens and transfers them to `to`.\n     *\n     * This function is intended for efficient minting only during contract creation.\n     *\n     * It emits only one {ConsecutiveTransfer} as defined in\n     * [ERC2309](https://eips.ethereum.org/EIPS/eip-2309),\n     * instead of a sequence of {Transfer} event(s).\n     *\n     * Calling this function outside of contract creation WILL make your contract\n     * non-compliant with the ERC721 standard.\n     * For full ERC721 compliance, substituting ERC721 {Transfer} event(s) with the ERC2309\n     * {ConsecutiveTransfer} event is only permissible during contract creation.\n     *\n     * Requirements:\n     *\n     * - `to` cannot be the zero address.\n     * - `quantity` must be greater than 0.\n     *\n     * Emits a {ConsecutiveTransfer} event.\n     */\n    function _mintERC2309(address to, uint256 quantity) internal virtual {\n        uint256 startTokenId = _currentIndex;\n        if (to == address(0)) _revert(MintToZeroAddress.selector);\n        if (quantity == 0) _revert(MintZeroQuantity.selector);\n        if (quantity > _MAX_MINT_ERC2309_QUANTITY_LIMIT) _revert(MintERC2309QuantityExceedsLimit.selector);\n\n        _beforeTokenTransfers(address(0), to, startTokenId, quantity);\n\n        // Overflows are unrealistic due to the above check for `quantity` to be below the limit.\n        unchecked {\n            // Updates:\n            // - `balance += quantity`.\n            // - `numberMinted += quantity`.\n            //\n            // We can directly add to the `balance` and `numberMinted`.\n            _packedAddressData[to] += quantity * ((1 << _BITPOS_NUMBER_MINTED) | 1);\n\n            // Updates:\n            // - `address` to the owner.\n            // - `startTimestamp` to the timestamp of minting.\n            // - `burned` to `false`.\n            // - `nextInitialized` to `quantity == 1`.\n            _packedOwnerships[startTokenId] =\n                _packOwnershipData(to, _nextInitializedFlag(quantity) | _nextExtraData(address(0), to, 0));\n\n            emit ConsecutiveTransfer(startTokenId, startTokenId + quantity - 1, address(0), to);\n\n            _currentIndex = startTokenId + quantity;\n        }\n        _afterTokenTransfers(address(0), to, startTokenId, quantity);\n    }\n\n    /**\n     * @dev Safely mints `quantity` tokens and transfers them to `to`.\n     *\n     * Requirements:\n     *\n     * - If `to` refers to a smart contract, it must implement\n     * {IERC721Receiver-onERC721Received}, which is called for each safe transfer.\n     * - `quantity` must be greater than 0.\n     *\n     * See {_mint}.\n     *\n     * Emits a {Transfer} event for each mint.\n     */\n    function _safeMint(address to, uint256 quantity, bytes memory _data) internal virtual {\n        _mint(to, quantity);\n\n        unchecked {\n            if (to.code.length != 0) {\n                uint256 end = _currentIndex;\n                uint256 index = end - quantity;\n                do {\n                    if (!_checkContractOnERC721Received(address(0), to, index++, _data)) {\n                        _revert(TransferToNonERC721ReceiverImplementer.selector);\n                    }\n                } while (index < end);\n                // Reentrancy protection.\n                if (_currentIndex != end) _revert(bytes4(0));\n            }\n        }\n    }\n\n    /**\n     * @dev Equivalent to `_safeMint(to, quantity, '')`.\n     */\n    function _safeMint(address to, uint256 quantity) internal virtual {\n        _safeMint(to, quantity, \"\");\n    }\n\n    // =============================================================\n    //                       APPROVAL OPERATIONS\n    // =============================================================\n\n    /**\n     * @dev Equivalent to `_approve(to, tokenId, false)`.\n     */\n    function _approve(address to, uint256 tokenId) internal virtual {\n        _approve(to, tokenId, false);\n    }\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\n     * zero address clears previous approvals.\n     *\n     * Requirements:\n     *\n     * - `tokenId` must exist.\n     *\n     * Emits an {Approval} event.\n     */\n    function _approve(address to, uint256 tokenId, bool approvalCheck) internal virtual {\n        address owner = ownerOf(tokenId);\n\n        if (approvalCheck && _msgSenderERC721A() != owner) {\n            if (!isApprovedForAll(owner, _msgSenderERC721A())) {\n                _revert(ApprovalCallerNotOwnerNorApproved.selector);\n            }\n        }\n\n        _tokenApprovals[tokenId].value = to;\n        emit Approval(owner, to, tokenId);\n    }\n\n    // =============================================================\n    //                        BURN OPERATIONS\n    // =============================================================\n\n    /**\n     * @dev Equivalent to `_burn(tokenId, false)`.\n     */\n    function _burn(uint256 tokenId) internal virtual {\n        _burn(tokenId, false);\n    }\n\n    /**\n     * @dev Destroys `tokenId`.\n     * The approval is cleared when the token is burned.\n     *\n     * Requirements:\n     *\n     * - `tokenId` must exist.\n     *\n     * Emits a {Transfer} event.\n     */\n    function _burn(uint256 tokenId, bool approvalCheck) internal virtual {\n        uint256 prevOwnershipPacked = _packedOwnershipOf(tokenId);\n\n        address from = address(uint160(prevOwnershipPacked));\n\n        (uint256 approvedAddressSlot, address approvedAddress) = _getApprovedSlotAndAddress(tokenId);\n\n        if (approvalCheck) {\n            // The nested ifs save around 20+ gas over a compound boolean condition.\n            if (!_isSenderApprovedOrOwner(approvedAddress, from, _msgSenderERC721A())) {\n                if (!isApprovedForAll(from, _msgSenderERC721A())) _revert(TransferCallerNotOwnerNorApproved.selector);\n            }\n        }\n\n        _beforeTokenTransfers(from, address(0), tokenId, 1);\n\n        // Clear approvals from the previous owner.\n        assembly {\n            if approvedAddress {\n                // This is equivalent to `delete _tokenApprovals[tokenId]`.\n                sstore(approvedAddressSlot, 0)\n            }\n        }\n\n        // Underflow of the sender's balance is impossible because we check for\n        // ownership above and the recipient's balance can't realistically overflow.\n        // Counter overflow is incredibly unrealistic as `tokenId` would have to be 2**256.\n        unchecked {\n            // Updates:\n            // - `balance -= 1`.\n            // - `numberBurned += 1`.\n            //\n            // We can directly decrement the balance, and increment the number burned.\n            // This is equivalent to `packed -= 1; packed += 1 << _BITPOS_NUMBER_BURNED;`.\n            _packedAddressData[from] += (1 << _BITPOS_NUMBER_BURNED) - 1;\n\n            // Updates:\n            // - `address` to the last owner.\n            // - `startTimestamp` to the timestamp of burning.\n            // - `burned` to `true`.\n            // - `nextInitialized` to `true`.\n            _packedOwnerships[tokenId] = _packOwnershipData(\n                from,\n                (_BITMASK_BURNED | _BITMASK_NEXT_INITIALIZED) | _nextExtraData(from, address(0), prevOwnershipPacked)\n            );\n\n            // If the next slot may not have been initialized (i.e. `nextInitialized == false`) .\n            if (prevOwnershipPacked & _BITMASK_NEXT_INITIALIZED == 0) {\n                uint256 nextTokenId = tokenId + 1;\n                // If the next slot's address is zero and not burned (i.e. packed value is zero).\n                if (_packedOwnerships[nextTokenId] == 0) {\n                    // If the next slot is within bounds.\n                    if (nextTokenId != _currentIndex) {\n                        // Initialize the next slot to maintain correctness for `ownerOf(tokenId + 1)`.\n                        _packedOwnerships[nextTokenId] = prevOwnershipPacked;\n                    }\n                }\n            }\n        }\n\n        emit Transfer(from, address(0), tokenId);\n        _afterTokenTransfers(from, address(0), tokenId, 1);\n\n        // Overflow not possible, as _burnCounter cannot be exceed _currentIndex times.\n        unchecked {\n            _burnCounter++;\n        }\n    }\n\n    // =============================================================\n    //                     EXTRA DATA OPERATIONS\n    // =============================================================\n\n    /**\n     * @dev Directly sets the extra data for the ownership data `index`.\n     */\n    function _setExtraDataAt(uint256 index, uint24 extraData) internal virtual {\n        uint256 packed = _packedOwnerships[index];\n        if (packed == 0) _revert(OwnershipNotInitializedForExtraData.selector);\n        uint256 extraDataCasted;\n        // Cast `extraData` with assembly to avoid redundant masking.\n        assembly {\n            extraDataCasted := extraData\n        }\n        packed = (packed & _BITMASK_EXTRA_DATA_COMPLEMENT) | (extraDataCasted << _BITPOS_EXTRA_DATA);\n        _packedOwnerships[index] = packed;\n    }\n\n    /**\n     * @dev Called during each token transfer to set the 24bit `extraData` field.\n     * Intended to be overridden by the cosumer contract.\n     *\n     * `previousExtraData` - the value of `extraData` before transfer.\n     *\n     * Calling conditions:\n     *\n     * - When `from` and `to` are both non-zero, `from`'s `tokenId` will be\n     * transferred to `to`.\n     * - When `from` is zero, `tokenId` will be minted for `to`.\n     * - When `to` is zero, `tokenId` will be burned by `from`.\n     * - `from` and `to` are never both zero.\n     */\n    function _extraData(address from, address to, uint24 previousExtraData) internal view virtual returns (uint24) {}\n\n    /**\n     * @dev Returns the next extra data for the packed ownership data.\n     * The returned result is shifted into position.\n     */\n    function _nextExtraData(address from, address to, uint256 prevOwnershipPacked) private view returns (uint256) {\n        uint24 extraData = uint24(prevOwnershipPacked >> _BITPOS_EXTRA_DATA);\n        return uint256(_extraData(from, to, extraData)) << _BITPOS_EXTRA_DATA;\n    }\n\n    // =============================================================\n    //                       OTHER OPERATIONS\n    // =============================================================\n\n    /**\n     * @dev Returns the message sender (defaults to `msg.sender`).\n     *\n     * If you are writing GSN compatible contracts, you need to override this function.\n     */\n    function _msgSenderERC721A() internal view virtual returns (address) {\n        return msg.sender;\n    }\n\n    /**\n     * @dev Converts a uint256 to its ASCII string decimal representation.\n     */\n    function _toString(uint256 value) internal pure virtual returns (string memory str) {\n        assembly {\n            // The maximum value of a uint256 contains 78 digits (1 byte per digit), but\n            // we allocate 0xa0 bytes to keep the free memory pointer 32-byte word aligned.\n            // We will need 1 word for the trailing zeros padding, 1 word for the length,\n            // and 3 words for a maximum of 78 digits. Total: 5 * 0x20 = 0xa0.\n            let m := add(mload(0x40), 0xa0)\n            // Update the free memory pointer to allocate.\n            mstore(0x40, m)\n            // Assign the `str` to the end.\n            str := sub(m, 0x20)\n            // Zeroize the slot after the string.\n            mstore(str, 0)\n\n            // Cache the end of the memory to calculate the length later.\n            let end := str\n\n            // We write the string from rightmost digit to leftmost digit.\n            // The following is essentially a do-while loop that also handles the zero case.\n            // prettier-ignore\n            for { let temp := value } 1 {} {\n                str := sub(str, 1)\n                // Write the character to the pointer.\n                // The ASCII index of the '0' character is 48.\n                mstore8(str, add(48, mod(temp, 10)))\n                // Keep dividing `temp` until zero.\n                temp := div(temp, 10)\n                // prettier-ignore\n                if iszero(temp) { break }\n            }\n\n            let length := sub(end, str)\n            // Move the pointer 32 bytes leftwards to make room for the length.\n            str := sub(str, 0x20)\n            // Store the length.\n            mstore(str, length)\n        }\n    }\n\n    /**\n     * @dev For more efficient reverts.\n     */\n    function _revert(bytes4 errorSelector) internal pure {\n        assembly {\n            mstore(0x00, errorSelector)\n            revert(0x00, 0x04)\n        }\n    }\n}\n"
      },
      "src/lib/token/metadata/TFMetadata.sol": {
        "content": "pragma solidity ^0.8.13;\n\nabstract contract TFMetadata {\n    /// @notice Base URI for computing {tokenURI}.\n    string internal _baseTokenURI;\n    /// @notice Name of the collection\n    string internal _collectionName;\n\n    /// @notice Internal function that sets the collection name for computing {tokenURI}.\n    /// @param _collectionNameString The collection name to set.\n    function _setCollectionName(string memory _collectionNameString) internal {\n        _collectionName = _collectionNameString;\n    }\n\n    /// @notice Internal function used to create media strings\n    /// @param _variantId  The variant id to use in the media string\n    /// @param _fileExtension The file extension to use in the media string\n    function _createMediaString(string memory _variantId, string memory _fileExtension)\n        internal\n        view\n        returns (string memory)\n    {\n        return string.concat(_baseTokenURI, _variantId, _fileExtension);\n    }\n\n    /// @notice Internal function used to create metadata strings.\n    /// @param _tokenId The token id to use in the metadata string\n    /// @param _variantId The variant id to use in the metadata string\n    /// @param _variantName The variant name to use in the metadata string\n    /// @param _variantDescription The variant description to use in the metadata string\n    function _createMetadataString(\n        string memory _tokenId,\n        string memory _variantId,\n        string memory _variantName,\n        string memory _variantDescription\n    ) internal view returns (string memory) {\n        string memory pngString = _createMediaString(_variantId, \".png\");\n        string memory mp4String = _createMediaString(_variantId, \".mp4\");\n\n        return string.concat(\n            '{\"id\":\"',\n            _tokenId,\n            '\",\"name\":\"',\n            _variantName,\n            \" #\",\n            _tokenId,\n            '\",\"variantId\":\"',\n            _variantId,\n            '\",\"collection\":\"',\n            _collectionName,\n            '\",\"description\":\"',\n            _variantDescription,\n            '\",\"image\":\"',\n            pngString,\n            '\",\"animation_url\":\"',\n            mp4String,\n            '\", \"creator\": \"The Fabricant',\n            '\"}'\n        );\n    }\n}\n"
      },
      "src/lib/interfaces/AuraInterface.sol": {
        "content": "// Interface PoC for Aura contract\n\npragma solidity ^0.8.0;\n\ninterface AuraInterface{\n    event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);\n\n    function name() external view returns (string memory);\n    function symbol() external view returns (string memory);\n    function balanceOf(address owner) external view returns (uint256);\n    function owner() external view returns (address); \n    function ownerOf(uint256 tokenId) external view returns (address);\n    function setURI(uint256 _id, string memory _uri) external;\n    function tokenURI(uint256 tokenId) external view returns (string memory);\n    // function mint(address recipient, string memory tokenURIPath, uint256 tokenId) external;\n    function mintBatch(address[] memory _addressArray, string[] memory _tokenURIs, uint256[] memory _ids) external;\n    function transferFrom(address from, address to, uint256 tokenId) external;\n    function safeTransferFrom(address from, address to, uint256 tokenId) external;\n    function setTransferable(bool _transferable) external;\n    function setApprovalForAll(address account, bool _approveForAll) external;\n    function transferOwnership(address newOwner) external;\n    function burn(uint256 tokenId) external;\n}\n"
      },
      "lib/openzeppelin-contracts/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"
      },
      "lib/openzeppelin-contracts/contracts/utils/math/Math.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (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(uint256 x, uint256 y, uint256 denominator) 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                // Solidity will revert if denominator == 0, unlike the div opcode on its own.\n                // The surrounding unchecked block does not change this fact.\n                // See https://docs.soliditylang.org/en/latest/control-structures.html#checked-or-unchecked-arithmetic.\n                return prod0 / denominator;\n            }\n\n            // Make sure the result is less than 2^256. Also prevents denominator == 0.\n            require(denominator > prod1, \"Math: mulDiv overflow\");\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(uint256 x, uint256 y, uint256 denominator, Rounding rounding) 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 256, 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 << 3) < value ? 1 : 0);\n        }\n    }\n}\n"
      },
      "lib/openzeppelin-contracts/contracts/utils/math/SignedMath.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.8.0) (utils/math/SignedMath.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Standard signed math utilities missing in the Solidity language.\n */\nlibrary SignedMath {\n    /**\n     * @dev Returns the largest of two signed numbers.\n     */\n    function max(int256 a, int256 b) internal pure returns (int256) {\n        return a > b ? a : b;\n    }\n\n    /**\n     * @dev Returns the smallest of two signed numbers.\n     */\n    function min(int256 a, int256 b) internal pure returns (int256) {\n        return a < b ? a : b;\n    }\n\n    /**\n     * @dev Returns the average of two signed numbers without overflow.\n     * The result is rounded towards zero.\n     */\n    function average(int256 a, int256 b) internal pure returns (int256) {\n        // Formula from the book \"Hacker's Delight\"\n        int256 x = (a & b) + ((a ^ b) >> 1);\n        return x + (int256(uint256(x) >> 255) & (a ^ b));\n    }\n\n    /**\n     * @dev Returns the absolute unsigned value of a signed value.\n     */\n    function abs(int256 n) internal pure returns (uint256) {\n        unchecked {\n            // must be unchecked in order to support `n = type(int256).min`\n            return uint256(n >= 0 ? n : -n);\n        }\n    }\n}\n"
      },
      "lib/openzeppelin-contracts/contracts/interfaces/IERC2981.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.9.0) (interfaces/IERC2981.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../utils/introspection/IERC165.sol\";\n\n/**\n * @dev Interface for the NFT Royalty Standard.\n *\n * A standardized way to retrieve royalty payment information for non-fungible tokens (NFTs) to enable universal\n * support for royalty payments across all NFT marketplaces and ecosystem participants.\n *\n * _Available since v4.5._\n */\ninterface IERC2981 is IERC165 {\n    /**\n     * @dev Returns how much royalty is owed and to whom, based on a sale price that may be denominated in any unit of\n     * exchange. The royalty amount is denominated and should be paid in that same unit of exchange.\n     */\n    function royaltyInfo(\n        uint256 tokenId,\n        uint256 salePrice\n    ) external view returns (address receiver, uint256 royaltyAmount);\n}\n"
      },
      "lib/openzeppelin-contracts/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"
      },
      "src/lib/interfaces/IERC721A.sol": {
        "content": "// SPDX-License-Identifier: MIT\n// ERC721A Contracts v4.2.3\n// Creator: Chiru Labs\n\npragma solidity ^0.8.4;\n\n/**\n * @dev Interface of ERC721A.\n */\ninterface IERC721A {\n    /**\n     * The caller must own the token or be an approved operator.\n     */\n    error ApprovalCallerNotOwnerNorApproved();\n\n    /**\n     * The token does not exist.\n     */\n    error ApprovalQueryForNonexistentToken();\n\n    /**\n     * Cannot query the balance for the zero address.\n     */\n    error BalanceQueryForZeroAddress();\n\n    /**\n     * Cannot mint to the zero address.\n     */\n    error MintToZeroAddress();\n\n    /**\n     * The quantity of tokens minted must be more than zero.\n     */\n    error MintZeroQuantity();\n\n    /**\n     * The token does not exist.\n     */\n    error OwnerQueryForNonexistentToken();\n\n    /**\n     * The caller must own the token or be an approved operator.\n     */\n    error TransferCallerNotOwnerNorApproved();\n\n    /**\n     * The token must be owned by `from`.\n     */\n    error TransferFromIncorrectOwner();\n\n    /**\n     * Cannot safely transfer to a contract that does not implement the\n     * ERC721Receiver interface.\n     */\n    error TransferToNonERC721ReceiverImplementer();\n\n    /**\n     * Cannot transfer to the zero address.\n     */\n    error TransferToZeroAddress();\n\n    /**\n     * The token does not exist.\n     */\n    error URIQueryForNonexistentToken();\n\n    /**\n     * The `quantity` minted with ERC2309 exceeds the safety limit.\n     */\n    error MintERC2309QuantityExceedsLimit();\n\n    /**\n     * The `extraData` cannot be set on an unintialized ownership slot.\n     */\n    error OwnershipNotInitializedForExtraData();\n\n    // =============================================================\n    //                            STRUCTS\n    // =============================================================\n\n    struct TokenOwnership {\n        // The address of the owner.\n        address addr;\n        // Stores the start time of ownership with minimal overhead for tokenomics.\n        uint64 startTimestamp;\n        // Whether the token has been burned.\n        bool burned;\n        // Arbitrary data similar to `startTimestamp` that can be set via {_extraData}.\n        uint24 extraData;\n    }\n\n    // =============================================================\n    //                         TOKEN COUNTERS\n    // =============================================================\n\n    /**\n     * @dev Returns the total number of tokens in existence.\n     * Burned tokens will reduce the count.\n     * To get the total number of tokens minted, please see {_totalMinted}.\n     */\n    function totalSupply() external view returns (uint256);\n\n    // =============================================================\n    //                            IERC165\n    // =============================================================\n\n    /**\n     * @dev Returns true if this contract implements the interface defined by\n     * `interfaceId`. See the corresponding\n     * [EIP section](https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified)\n     * to learn more about how these ids are created.\n     *\n     * This function call must use less than 30000 gas.\n     */\n    function supportsInterface(bytes4 interfaceId) external view returns (bool);\n\n    // =============================================================\n    //                            IERC721\n    // =============================================================\n\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\n     * (`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     * checking first that contract recipients are aware of the ERC721 protocol\n     * 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 be have been allowed to move\n     * this token by either {approve} or {setApprovalForAll}.\n     * - If `to` refers to a smart contract, it must implement\n     * {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.\n     *\n     * Emits a {Transfer} event.\n     */\n    function safeTransferFrom(address from, address to, uint256 tokenId, bytes calldata data) external payable;\n\n    /**\n     * @dev Equivalent to `safeTransferFrom(from, to, tokenId, '')`.\n     */\n    function safeTransferFrom(address from, address to, uint256 tokenId) external payable;\n\n    /**\n     * @dev Transfers `tokenId` from `from` to `to`.\n     *\n     * WARNING: Usage of this method is discouraged, use {safeTransferFrom}\n     * whenever possible.\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\n     * by either {approve} or {setApprovalForAll}.\n     *\n     * Emits a {Transfer} event.\n     */\n    function transferFrom(address from, address to, uint256 tokenId) external payable;\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\n     * 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 payable;\n\n    /**\n     * @dev Approve or remove `operator` as an operator for the caller.\n     * Operators can call {transferFrom} or {safeTransferFrom}\n     * 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    // =============================================================\n    //                        IERC721Metadata\n    // =============================================================\n\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    // =============================================================\n    //                           IERC2309\n    // =============================================================\n\n    /**\n     * @dev Emitted when tokens in `fromTokenId` to `toTokenId`\n     * (inclusive) is transferred from `from` to `to`, as defined in the\n     * [ERC2309](https://eips.ethereum.org/EIPS/eip-2309) standard.\n     *\n     * See {_mintERC2309} for more details.\n     */\n    event ConsecutiveTransfer(uint256 indexed fromTokenId, uint256 toTokenId, address indexed from, address indexed to);\n}\n"
      },
      "lib/openzeppelin-contracts/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"
      }
    },
    "settings": {
      "remappings": [
        "ds-test/=lib/forge-std/lib/ds-test/src/",
        "erc4626-tests/=lib/openzeppelin-contracts/lib/erc4626-tests/",
        "forge-std/=lib/forge-std/src/",
        "openzeppelin-contracts/=lib/openzeppelin-contracts/",
        "openzeppelin/=lib/openzeppelin-contracts/contracts/"
      ],
      "optimizer": {
        "enabled": true,
        "runs": 200
      },
      "metadata": {
        "useLiteralContent": false,
        "bytecodeHash": "ipfs",
        "appendCBOR": true
      },
      "outputSelection": {
        "*": {
          "*": [
            "evm.bytecode",
            "evm.deployedBytecode",
            "devdoc",
            "userdoc",
            "metadata",
            "abi"
          ]
        }
      },
      "evmVersion": "paris",
      "viaIR": false,
      "libraries": {}
    }
  }}