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// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/// @author: manifold.xyz

import "@openzeppelin/contracts-upgradeable/token/ERC1155/ERC1155Upgradeable.sol";
import "@manifoldxyz/libraries-solidity/contracts/access/AdminControlUpgradeable.sol";

import "./core/ERC1155CreatorCore.sol";

/**
 * @dev ERC1155Creator implementation
 */
contract ERC1155CreatorImplementation is AdminControlUpgradeable, ERC1155Upgradeable, ERC1155CreatorCore {

    mapping(uint256 => uint256) private _totalSupply;

    /**
     * Initializer
     */
    function initialize(string memory _name, string memory _symbol) public initializer {
        __ERC1155_init("");
        __Ownable_init();
        name = _name;
        symbol = _symbol;
    }

    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override(ERC1155Upgradeable, ERC1155CreatorCore, AdminControlUpgradeable) returns (bool) {
        return ERC1155CreatorCore.supportsInterface(interfaceId) || ERC1155Upgradeable.supportsInterface(interfaceId) || AdminControlUpgradeable.supportsInterface(interfaceId);
    }

    function _beforeTokenTransfer(address, address from, address to, uint256[] memory ids, uint256[] memory amounts, bytes memory) internal virtual override {
        _approveTransfer(from, to, ids, amounts);
    }

    /**
     * @dev See {ICreatorCore-registerExtension}.
     */
    function registerExtension(address extension, string calldata baseURI) external override adminRequired {
        requireNonBlacklist(extension);
        _registerExtension(extension, baseURI, false);
    }

    /**
     * @dev See {ICreatorCore-registerExtension}.
     */
    function registerExtension(address extension, string calldata baseURI, bool baseURIIdentical) external override adminRequired {
        requireNonBlacklist(extension);
        _registerExtension(extension, baseURI, baseURIIdentical);
    }


    /**
     * @dev See {ICreatorCore-unregisterExtension}.
     */
    function unregisterExtension(address extension) external override adminRequired {
        _unregisterExtension(extension);
    }

    /**
     * @dev See {ICreatorCore-blacklistExtension}.
     */
    function blacklistExtension(address extension) external override adminRequired {
        _blacklistExtension(extension);
    }

    /**
     * @dev See {ICreatorCore-setBaseTokenURIExtension}.
     */
    function setBaseTokenURIExtension(string calldata uri_) external override {
        requireExtension();
        _setBaseTokenURIExtension(uri_, false);
    }

    /**
     * @dev See {ICreatorCore-setBaseTokenURIExtension}.
     */
    function setBaseTokenURIExtension(string calldata uri_, bool identical) external override {
        requireExtension();
        _setBaseTokenURIExtension(uri_, identical);
    }

    /**
     * @dev See {ICreatorCore-setTokenURIPrefixExtension}.
     */
    function setTokenURIPrefixExtension(string calldata prefix) external override {
        requireExtension();
        _setTokenURIPrefixExtension(prefix);
    }

    /**
     * @dev See {ICreatorCore-setTokenURIExtension}.
     */
    function setTokenURIExtension(uint256 tokenId, string calldata uri_) external override {
        requireExtension();
        _setTokenURIExtension(tokenId, uri_);
    }

    /**
     * @dev See {ICreatorCore-setTokenURIExtension}.
     */
    function setTokenURIExtension(uint256[] memory tokenIds, string[] calldata uris) external override {
        requireExtension();
        require(tokenIds.length == uris.length, "Invalid input");
        for (uint i; i < tokenIds.length;) {
            _setTokenURIExtension(tokenIds[i], uris[i]);
            unchecked { ++i; }
        }
    }

    /**
     * @dev See {ICreatorCore-setBaseTokenURI}.
     */
    function setBaseTokenURI(string calldata uri_) external override adminRequired {
        _setBaseTokenURI(uri_);
    }

    /**
     * @dev See {ICreatorCore-setTokenURIPrefix}.
     */
    function setTokenURIPrefix(string calldata prefix) external override adminRequired {
        _setTokenURIPrefix(prefix);
    }

    /**
     * @dev See {ICreatorCore-setTokenURI}.
     */
    function setTokenURI(uint256 tokenId, string calldata uri_) external override adminRequired {
        _setTokenURI(tokenId, uri_);
    }

    /**
     * @dev See {ICreatorCore-setTokenURI}.
     */
    function setTokenURI(uint256[] memory tokenIds, string[] calldata uris) external override adminRequired {
        require(tokenIds.length == uris.length, "Invalid input");
        for (uint i; i < tokenIds.length;) {
            _setTokenURI(tokenIds[i], uris[i]);
            unchecked { ++i; }
        }
    }

    /**
     * @dev See {ICreatorCore-setMintPermissions}.
     */
    function setMintPermissions(address extension, address permissions) external override adminRequired {
        _setMintPermissions(extension, permissions);
    }

    /**
     * @dev See {IERC1155CreatorCore-mintBaseNew}.
     */
    function mintBaseNew(address[] calldata to, uint256[] calldata amounts, string[] calldata uris) public virtual override nonReentrant adminRequired returns(uint256[] memory) {
        return _mintNew(address(0), to, amounts, uris);
    }

    /**
     * @dev See {IERC1155CreatorCore-mintBaseExisting}.
     */
    function mintBaseExisting(address[] calldata to, uint256[] calldata tokenIds, uint256[] calldata amounts) public virtual override nonReentrant adminRequired {
        for (uint i; i < tokenIds.length;) {
            uint256 tokenId = tokenIds[i];
            require(tokenId > 0 && tokenId <= _tokenCount, "Invalid token");
            require(_tokensExtension[tokenId] == address(0), "Token created by extension");
            unchecked { ++i; }
        }
        _mintExisting(address(0), to, tokenIds, amounts);
    }

    /**
     * @dev See {IERC1155CreatorCore-mintExtensionNew}.
     */
    function mintExtensionNew(address[] calldata to, uint256[] calldata amounts, string[] calldata uris) public virtual override nonReentrant returns(uint256[] memory tokenIds) {
        requireExtension();
        return _mintNew(msg.sender, to, amounts, uris);
    }

    /**
     * @dev See {IERC1155CreatorCore-mintExtensionExisting}.
     */
    function mintExtensionExisting(address[] calldata to, uint256[] calldata tokenIds, uint256[] calldata amounts) public virtual override nonReentrant {
        requireExtension();
        for (uint i; i < tokenIds.length;) {
            require(_tokensExtension[tokenIds[i]] == address(msg.sender), "Token not created by this extension");
            unchecked { ++i; }
        }
        _mintExisting(msg.sender, to, tokenIds, amounts);
    }

    /**
     * @dev Mint new tokens
     */
    function _mintNew(address extension, address[] memory to, uint256[] memory amounts, string[] memory uris) internal returns(uint256[] memory tokenIds) {
        if (to.length > 1) {
            // Multiple receiver.  Give every receiver the same new token
            tokenIds = new uint256[](1);
            require(uris.length <= 1 && (amounts.length == 1 || to.length == amounts.length), "Invalid input");
        } else {
            // Single receiver.  Generating multiple tokens
            tokenIds = new uint256[](amounts.length);
            require(uris.length == 0 || amounts.length == uris.length, "Invalid input");
        }

        // Assign tokenIds
        for (uint i; i < tokenIds.length;) {
            ++_tokenCount;
            tokenIds[i] = _tokenCount;
            // Track the extension that minted the token
            _tokensExtension[_tokenCount] = extension;
            unchecked { ++i; }
        }

        if (extension != address(0)) {
            _checkMintPermissions(to, tokenIds, amounts);
        }

        if (to.length == 1 && tokenIds.length == 1) {
           // Single mint
           _mint(to[0], tokenIds[0], amounts[0], new bytes(0));
        } else if (to.length > 1) {
            // Multiple receivers.  Receiving the same token
            if (amounts.length == 1) {
                // Everyone receiving the same amount
                for (uint i; i < to.length;) {
                    _mint(to[i], tokenIds[0], amounts[0], new bytes(0));
                    unchecked { ++i; }
                }
            } else {
                // Everyone receiving different amounts
                for (uint i; i < to.length;) {
                    _mint(to[i], tokenIds[0], amounts[i], new bytes(0));
                    unchecked { ++i; }
                }
            }
        } else {
            _mintBatch(to[0], tokenIds, amounts, new bytes(0));
        }

        for (uint i; i < tokenIds.length;) {
            if (i < uris.length && bytes(uris[i]).length > 0) {
                _tokenURIs[tokenIds[i]] = uris[i];
            }
            unchecked { ++i; }
        }
    }

    /**
     * @dev Mint existing tokens
     */
    function _mintExisting(address extension, address[] memory to, uint256[] memory tokenIds, uint256[] memory amounts) internal {
        if (extension != address(0)) {
            _checkMintPermissions(to, tokenIds, amounts);
        }

        if (to.length == 1 && tokenIds.length == 1 && amounts.length == 1) {
             // Single mint
            _mint(to[0], tokenIds[0], amounts[0], new bytes(0));            
        } else if (to.length == 1 && tokenIds.length == amounts.length) {
            // Batch mint to same receiver
            _mintBatch(to[0], tokenIds, amounts, new bytes(0));
        } else if (tokenIds.length == 1 && amounts.length == 1) {
            // Mint of the same token/token amounts to various receivers
            for (uint i; i < to.length;) {
                _mint(to[i], tokenIds[0], amounts[0], new bytes(0));
                unchecked { ++i; }
            }
        } else if (tokenIds.length == 1 && to.length == amounts.length) {
            // Mint of the same token with different amounts to different receivers
            for (uint i; i < to.length;) {
                _mint(to[i], tokenIds[0], amounts[i], new bytes(0));
                unchecked { ++i; }
            }
        } else if (to.length == tokenIds.length && to.length == amounts.length) {
            // Mint of different tokens and different amounts to different receivers
            for (uint i; i < to.length;) {
                _mint(to[i], tokenIds[i], amounts[i], new bytes(0));
                unchecked { ++i; }
            }
        } else {
            revert("Invalid input");
        }
    }

    /**
     * @dev See {IERC1155CreatorCore-tokenExtension}.
     */
    function tokenExtension(uint256 tokenId) public view virtual override returns (address) {
        return _tokenExtension(tokenId);
    }

    /**
     * @dev See {IERC1155CreatorCore-burn}.
     */
    function burn(address account, uint256[] memory tokenIds, uint256[] memory amounts) public virtual override nonReentrant {
        require(account == msg.sender || isApprovedForAll(account, msg.sender), "Caller is not owner nor approved");
        require(tokenIds.length == amounts.length, "Invalid input");
        if (tokenIds.length == 1) {
            _burn(account, tokenIds[0], amounts[0]);
        } else {
            _burnBatch(account, tokenIds, amounts);
        }
        _postBurn(account, tokenIds, amounts);
    }

    /**
     * @dev See {ICreatorCore-setRoyalties}.
     */
    function setRoyalties(address payable[] calldata receivers, uint256[] calldata basisPoints) external override adminRequired {
        _setRoyaltiesExtension(address(0), receivers, basisPoints);
    }

    /**
     * @dev See {ICreatorCore-setRoyalties}.
     */
    function setRoyalties(uint256 tokenId, address payable[] calldata receivers, uint256[] calldata basisPoints) external override adminRequired {
        _setRoyalties(tokenId, receivers, basisPoints);
    }

    /**
     * @dev See {ICreatorCore-setRoyaltiesExtension}.
     */
    function setRoyaltiesExtension(address extension, address payable[] calldata receivers, uint256[] calldata basisPoints) external override adminRequired {
        _setRoyaltiesExtension(extension, receivers, basisPoints);
    }

    /**
     * @dev See {ICreatorCore-getRoyalties}.
     */
    function getRoyalties(uint256 tokenId) external view virtual override returns (address payable[] memory, uint256[] memory) {
        return _getRoyalties(tokenId);
    }

    /**
     * @dev See {ICreatorCore-getFees}.
     */
    function getFees(uint256 tokenId) external view virtual override returns (address payable[] memory, uint256[] memory) {
        return _getRoyalties(tokenId);
    }

    /**
     * @dev See {ICreatorCore-getFeeRecipients}.
     */
    function getFeeRecipients(uint256 tokenId) external view virtual override returns (address payable[] memory) {
        return _getRoyaltyReceivers(tokenId);
    }

    /**
     * @dev See {ICreatorCore-getFeeBps}.
     */
    function getFeeBps(uint256 tokenId) external view virtual override returns (uint[] memory) {
        return _getRoyaltyBPS(tokenId);
    }
    
    /**
     * @dev See {ICreatorCore-royaltyInfo}.
     */
    function royaltyInfo(uint256 tokenId, uint256 value) external view virtual override returns (address, uint256) {
        return _getRoyaltyInfo(tokenId, value);
    } 

    /**
     * @dev See {IERC1155-uri}.
     */
    function uri(uint256 tokenId) public view virtual override returns (string memory) {
        return _tokenURI(tokenId);
    }
    
    /**
     * @dev Total amount of tokens in with a given id.
     */
    function totalSupply(uint256 tokenId) external view virtual override returns (uint256) {
        return _totalSupply[tokenId];
    }

    /**
     * @dev See {ERC1155-_mint}.
     */
    function _mint(address account, uint256 id, uint256 amount, bytes memory data) internal virtual override {
        super._mint(account, id, amount, data);
        _totalSupply[id] += amount;
    }

    /**
     * @dev See {ERC1155-_mintBatch}.
     */
    function _mintBatch(address to, uint256[] memory ids, uint256[] memory amounts, bytes memory data) internal virtual override {
        super._mintBatch(to, ids, amounts, data);
        for (uint i; i < ids.length;) {
            _totalSupply[ids[i]] += amounts[i];
            unchecked { ++i; }
        }
    }

    /**
     * @dev See {ERC1155-_burn}.
     */
    function _burn(address account, uint256 id, uint256 amount) internal virtual override {
        super._burn(account, id, amount);
        _totalSupply[id] -= amount;
    }

    /**
     * @dev See {ERC1155-_burnBatch}.
     */
    function _burnBatch(address account, uint256[] memory ids, uint256[] memory amounts) internal virtual override {
        super._burnBatch(account, ids, amounts);
        for (uint i; i < ids.length;) {
            _totalSupply[ids[i]] -= amounts[i];
            unchecked { ++i; }
        }
    }

    /**
     * @dev See {ICreatorCore-setApproveTransfer}.
     */
    function setApproveTransfer(address extension) external override adminRequired {
        _setApproveTransferBase(extension);
    }
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/// @author: manifold.xyz

import "@openzeppelin/contracts/security/ReentrancyGuard.sol";
import "@openzeppelin/contracts/utils/Strings.sol";
import "@openzeppelin/contracts/utils/introspection/ERC165.sol";
import "@openzeppelin/contracts/utils/introspection/ERC165Checker.sol";
import "@openzeppelin/contracts/utils/structs/EnumerableSet.sol";
import "@openzeppelin/contracts-upgradeable/utils/AddressUpgradeable.sol";

import "../extensions/ICreatorExtensionTokenURI.sol";
import "../extensions/ICreatorExtensionRoyalties.sol";

import "./ICreatorCore.sol";

/**
 * @dev Core creator implementation
 */
abstract contract CreatorCore is ReentrancyGuard, ICreatorCore, ERC165 {
    using Strings for uint256;
    using EnumerableSet for EnumerableSet.AddressSet;
    using AddressUpgradeable for address;

    uint256 internal _tokenCount = 0;

    // Base approve transfers address location
    address internal _approveTransferBase;

    // Track registered extensions data
    EnumerableSet.AddressSet internal _extensions;
    EnumerableSet.AddressSet internal _blacklistedExtensions;
    mapping (address => address) internal _extensionPermissions;
    mapping (address => bool) internal _extensionApproveTransfers;
    
    // For tracking which extension a token was minted by
    mapping (uint256 => address) internal _tokensExtension;

    // The baseURI for a given extension
    mapping (address => string) private _extensionBaseURI;
    mapping (address => bool) private _extensionBaseURIIdentical;

    // The prefix for any tokens with a uri configured
    mapping (address => string) private _extensionURIPrefix;

    // Mapping for individual token URIs
    mapping (uint256 => string) internal _tokenURIs;

    // Royalty configurations
    struct RoyaltyConfig {
        address payable receiver;
        uint16 bps;
    }
    mapping (address => RoyaltyConfig[]) internal _extensionRoyalty;
    mapping (uint256 => RoyaltyConfig[]) internal _tokenRoyalty;

    bytes4 private constant _CREATOR_CORE_V1 = 0x28f10a21;

    /**
     * External interface identifiers for royalties
     */

    /**
     *  @dev CreatorCore
     *
     *  bytes4(keccak256('getRoyalties(uint256)')) == 0xbb3bafd6
     *
     *  => 0xbb3bafd6 = 0xbb3bafd6
     */
    bytes4 private constant _INTERFACE_ID_ROYALTIES_CREATORCORE = 0xbb3bafd6;

    /**
     *  @dev Rarible: RoyaltiesV1
     *
     *  bytes4(keccak256('getFeeRecipients(uint256)')) == 0xb9c4d9fb
     *  bytes4(keccak256('getFeeBps(uint256)')) == 0x0ebd4c7f
     *
     *  => 0xb9c4d9fb ^ 0x0ebd4c7f = 0xb7799584
     */
    bytes4 private constant _INTERFACE_ID_ROYALTIES_RARIBLE = 0xb7799584;

    /**
     *  @dev Foundation
     *
     *  bytes4(keccak256('getFees(uint256)')) == 0xd5a06d4c
     *
     *  => 0xd5a06d4c = 0xd5a06d4c
     */
    bytes4 private constant _INTERFACE_ID_ROYALTIES_FOUNDATION = 0xd5a06d4c;

    /**
     *  @dev EIP-2981
     *
     * bytes4(keccak256("royaltyInfo(uint256,uint256)")) == 0x2a55205a
     *
     * => 0x2a55205a = 0x2a55205a
     */
    bytes4 private constant _INTERFACE_ID_ROYALTIES_EIP2981 = 0x2a55205a;

    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) {
        return interfaceId == type(ICreatorCore).interfaceId || interfaceId == _CREATOR_CORE_V1 || super.supportsInterface(interfaceId)
            || interfaceId == _INTERFACE_ID_ROYALTIES_CREATORCORE || interfaceId == _INTERFACE_ID_ROYALTIES_RARIBLE
            || interfaceId == _INTERFACE_ID_ROYALTIES_FOUNDATION || interfaceId == _INTERFACE_ID_ROYALTIES_EIP2981;
    }

    /**
     * @dev Only allows registered extensions to call the specified function
     */
    function requireExtension() internal view {
        require(_extensions.contains(msg.sender), "Must be registered extension");
    }

    /**
     * @dev Only allows non-blacklisted extensions
     */
    function requireNonBlacklist(address extension) internal view {
        require(!_blacklistedExtensions.contains(extension), "Extension blacklisted");
    }   

    /**
     * @dev See {ICreatorCore-getExtensions}.
     */
    function getExtensions() external view override returns (address[] memory extensions) {
        extensions = new address[](_extensions.length());
        for (uint i; i < _extensions.length();) {
            extensions[i] = _extensions.at(i);
            unchecked { ++i; }
        }
        return extensions;
    }

    /**
     * @dev Register an extension
     */
    function _registerExtension(address extension, string calldata baseURI, bool baseURIIdentical) internal {
        require(extension != address(this) && extension.isContract(), "Invalid");
        emit ExtensionRegistered(extension, msg.sender);
        _extensionBaseURI[extension] = baseURI;
        _extensionBaseURIIdentical[extension] = baseURIIdentical;
        _extensions.add(extension);
        _setApproveTransferExtension(extension, true);
    }

    /**
     * @dev See {ICreatorCore-setApproveTransferExtension}.
     */
    function setApproveTransferExtension(bool enabled) external override {
        requireExtension();
        _setApproveTransferExtension(msg.sender, enabled);
    }

    /**
     * @dev Set whether or not tokens minted by the extension defers transfer approvals to the extension
     */
    function _setApproveTransferExtension(address extension, bool enabled) internal virtual;

    /**
     * @dev Unregister an extension
     */
    function _unregisterExtension(address extension) internal {
        emit ExtensionUnregistered(extension, msg.sender);
        _extensions.remove(extension);
    }

    /**
     * @dev Blacklist an extension
     */
    function _blacklistExtension(address extension) internal {
       require(extension != address(0) && extension != address(this), "Cannot blacklist yourself");
       if (_extensions.contains(extension)) {
           emit ExtensionUnregistered(extension, msg.sender);
           _extensions.remove(extension);
       }
       if (!_blacklistedExtensions.contains(extension)) {
           emit ExtensionBlacklisted(extension, msg.sender);
           _blacklistedExtensions.add(extension);
       }
    }

    /**
     * @dev Set base token uri for an extension
     */
    function _setBaseTokenURIExtension(string calldata uri, bool identical) internal {
        _extensionBaseURI[msg.sender] = uri;
        _extensionBaseURIIdentical[msg.sender] = identical;
    }

    /**
     * @dev Set token uri prefix for an extension
     */
    function _setTokenURIPrefixExtension(string calldata prefix) internal {
        _extensionURIPrefix[msg.sender] = prefix;
    }

    /**
     * @dev Set token uri for a token of an extension
     */
    function _setTokenURIExtension(uint256 tokenId, string calldata uri) internal {
        require(_tokensExtension[tokenId] == msg.sender, "Invalid token");
        _tokenURIs[tokenId] = uri;
    }

    /**
     * @dev Set base token uri for tokens with no extension
     */
    function _setBaseTokenURI(string memory uri) internal {
        _extensionBaseURI[address(0)] = uri;
    }

    /**
     * @dev Set token uri prefix for tokens with no extension
     */
    function _setTokenURIPrefix(string calldata prefix) internal {
        _extensionURIPrefix[address(0)] = prefix;
    }


    /**
     * @dev Set token uri for a token with no extension
     */
    function _setTokenURI(uint256 tokenId, string calldata uri) internal {
        require(tokenId > 0 && tokenId <= _tokenCount && _tokensExtension[tokenId] == address(0), "Invalid token");
        _tokenURIs[tokenId] = uri;
    }

    /**
     * @dev Retrieve a token's URI
     */
    function _tokenURI(uint256 tokenId) internal view returns (string memory) {
        require(tokenId > 0 && tokenId <= _tokenCount, "Invalid token");

        address extension = _tokensExtension[tokenId];
        require(!_blacklistedExtensions.contains(extension), "Extension blacklisted");

        if (bytes(_tokenURIs[tokenId]).length != 0) {
            if (bytes(_extensionURIPrefix[extension]).length != 0) {
                return string(abi.encodePacked(_extensionURIPrefix[extension],_tokenURIs[tokenId]));
            }
            return _tokenURIs[tokenId];
        }

        if (ERC165Checker.supportsInterface(extension, type(ICreatorExtensionTokenURI).interfaceId)) {
            return ICreatorExtensionTokenURI(extension).tokenURI(address(this), tokenId);
        }

        if (!_extensionBaseURIIdentical[extension]) {
            return string(abi.encodePacked(_extensionBaseURI[extension], tokenId.toString()));
        } else {
            return _extensionBaseURI[extension];
        }
    }

    /**
     * Get token extension
     */
    function _tokenExtension(uint256 tokenId) internal view returns (address extension) {
        extension = _tokensExtension[tokenId];

        require(extension != address(0), "No extension for token");
        require(!_blacklistedExtensions.contains(extension), "Extension blacklisted");

        return extension;
    }

    /**
     * Helper to get royalties for a token
     */
    function _getRoyalties(uint256 tokenId) view internal returns (address payable[] memory receivers, uint256[] memory bps) {

        // Get token level royalties
        RoyaltyConfig[] memory royalties = _tokenRoyalty[tokenId];
        if (royalties.length == 0) {
            // Get extension specific royalties
            address extension = _tokensExtension[tokenId];
            if (extension != address(0)) {
                if (ERC165Checker.supportsInterface(extension, type(ICreatorExtensionRoyalties).interfaceId)) {
                    (receivers, bps) = ICreatorExtensionRoyalties(extension).getRoyalties(address(this), tokenId);
                    // Extension override exists, just return that
                    if (receivers.length > 0) return (receivers, bps);
                }
                royalties = _extensionRoyalty[extension];
            }
        }
        if (royalties.length == 0) {
            // Get the default royalty
            royalties = _extensionRoyalty[address(0)];
        }
        
        if (royalties.length > 0) {
            receivers = new address payable[](royalties.length);
            bps = new uint256[](royalties.length);
            for (uint i; i < royalties.length;) {
                receivers[i] = royalties[i].receiver;
                bps[i] = royalties[i].bps;
                unchecked { ++i; }
            }
        }
    }

    /**
     * Helper to get royalty receivers for a token
     */
    function _getRoyaltyReceivers(uint256 tokenId) view internal returns (address payable[] memory recievers) {
        (recievers, ) = _getRoyalties(tokenId);
    }

    /**
     * Helper to get royalty basis points for a token
     */
    function _getRoyaltyBPS(uint256 tokenId) view internal returns (uint256[] memory bps) {
        (, bps) = _getRoyalties(tokenId);
    }

    function _getRoyaltyInfo(uint256 tokenId, uint256 value) view internal returns (address receiver, uint256 amount){
        (address payable[] memory receivers, uint256[] memory bps) = _getRoyalties(tokenId);
        require(receivers.length <= 1, "More than 1 royalty receiver");
        
        if (receivers.length == 0) {
            return (address(this), 0);
        }
        return (receivers[0], bps[0]*value/10000);
    }

    /**
     * Set royalties for a token
     */
    function _setRoyalties(uint256 tokenId, address payable[] calldata receivers, uint256[] calldata basisPoints) internal {
       _checkRoyalties(receivers, basisPoints);
        delete _tokenRoyalty[tokenId];
        _setRoyalties(receivers, basisPoints, _tokenRoyalty[tokenId]);
        emit RoyaltiesUpdated(tokenId, receivers, basisPoints);
    }

    /**
     * Set royalties for all tokens of an extension
     */
    function _setRoyaltiesExtension(address extension, address payable[] calldata receivers, uint256[] calldata basisPoints) internal {
        _checkRoyalties(receivers, basisPoints);
        delete _extensionRoyalty[extension];
        _setRoyalties(receivers, basisPoints, _extensionRoyalty[extension]);
        if (extension == address(0)) {
            emit DefaultRoyaltiesUpdated(receivers, basisPoints);
        } else {
            emit ExtensionRoyaltiesUpdated(extension, receivers, basisPoints);
        }
    }

    /**
     * Helper function to check that royalties provided are valid
     */
    function _checkRoyalties(address payable[] calldata receivers, uint256[] calldata basisPoints) private pure {
        require(receivers.length == basisPoints.length, "Invalid input");
        uint256 totalBasisPoints;
        for (uint i; i < basisPoints.length;) {
            totalBasisPoints += basisPoints[i];
            unchecked { ++i; }
        }
        require(totalBasisPoints < 10000, "Invalid total royalties");
    }

    /**
     * Helper function to set royalties
     */
    function _setRoyalties(address payable[] calldata receivers, uint256[] calldata basisPoints, RoyaltyConfig[] storage royalties) private {
        for (uint i; i < basisPoints.length;) {
            royalties.push(
                RoyaltyConfig(
                    {
                        receiver: receivers[i],
                        bps: uint16(basisPoints[i])
                    }
                )
            );
            unchecked { ++i; }
        }
    }

    /**
     * @dev See {ICreatorCore-getApproveTransfer}.
     */
    function getApproveTransfer() external view override returns (address) {
        return _approveTransferBase;
    }
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/// @author: manifold.xyz

import "@openzeppelin/contracts/utils/structs/EnumerableSet.sol";

import "../extensions/ERC1155/IERC1155CreatorExtensionApproveTransfer.sol";
import "../extensions/ERC1155/IERC1155CreatorExtensionBurnable.sol";
import "../permissions/ERC1155/IERC1155CreatorMintPermissions.sol";
import "./IERC1155CreatorCore.sol";
import "./CreatorCore.sol";

/**
 * @dev Core ERC1155 creator implementation
 */
abstract contract ERC1155CreatorCore is CreatorCore, IERC1155CreatorCore {

    uint256 constant public VERSION = 2;

    using EnumerableSet for EnumerableSet.AddressSet;
    string public name;
    string public symbol;

    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override(CreatorCore, IERC165) returns (bool) {
        return interfaceId == type(IERC1155CreatorCore).interfaceId || super.supportsInterface(interfaceId);
    }

    /**
     * @dev See {CreatorCore-_setApproveTransferExtension}
     */
    function _setApproveTransferExtension(address extension, bool enabled) internal override {
        if (ERC165Checker.supportsInterface(extension, type(IERC1155CreatorExtensionApproveTransfer).interfaceId)) {
            _extensionApproveTransfers[extension] = enabled;
            emit ExtensionApproveTransferUpdated(extension, enabled);
        }
    }

    /**
     * @dev Set the base contract's approve transfer contract location
     */
    function _setApproveTransferBase(address extension) internal {
        _approveTransferBase = extension;
        emit ApproveTransferUpdated(extension);
    }

    /**
     * @dev Set mint permissions for an extension
     */
    function _setMintPermissions(address extension, address permissions) internal {
        require(_extensions.contains(extension), "Invalid extension");
        require(permissions == address(0) || ERC165Checker.supportsInterface(permissions, type(IERC1155CreatorMintPermissions).interfaceId), "Invalid address");
        if (_extensionPermissions[extension] != permissions) {
            _extensionPermissions[extension] = permissions;
            emit MintPermissionsUpdated(extension, permissions, msg.sender);
        }
    }

    /**
     * Check if an extension can mint
     */
    function _checkMintPermissions(address[] memory to, uint256[] memory tokenIds, uint256[] memory amounts) internal {
        if (_extensionPermissions[msg.sender] != address(0)) {
            IERC1155CreatorMintPermissions(_extensionPermissions[msg.sender]).approveMint(msg.sender, to, tokenIds, amounts);
        }
    }

    /**
     * Post burn actions
     */
    function _postBurn(address owner, uint256[] memory tokenIds, uint256[] memory amounts) internal virtual {
        require(tokenIds.length > 0, "Invalid input");
        address extension = _tokensExtension[tokenIds[0]];
        for (uint i; i < tokenIds.length;) {
            require(_tokensExtension[tokenIds[i]] == extension, "Mismatched token originators");
            unchecked { ++i; }
        }
        // Callback to originating extension if needed
        if (extension != address(0)) {
           if (ERC165Checker.supportsInterface(extension, type(IERC1155CreatorExtensionBurnable).interfaceId)) {
               IERC1155CreatorExtensionBurnable(extension).onBurn(owner, tokenIds, amounts);
           }
        }
    }

    /**
     * Approve a transfer
     */
    function _approveTransfer(address from, address to, uint256[] memory tokenIds, uint256[] memory amounts) internal {
        require(tokenIds.length > 0, "Invalid input");
        address extension = _tokensExtension[tokenIds[0]];
        for (uint i; i < tokenIds.length;) {
            require(_tokensExtension[tokenIds[i]] == extension, "Mismatched token originators");
            unchecked { ++i; }
        }
        if (_extensionApproveTransfers[extension]) {
            require(IERC1155CreatorExtensionApproveTransfer(extension).approveTransfer(msg.sender, from, to, tokenIds, amounts), "Extension approval failure");
        } else if (_approveTransferBase != address(0)) {
            require(IERC1155CreatorExtensionApproveTransfer(_approveTransferBase).approveTransfer(msg.sender, from, to, tokenIds, amounts), "Extension approval failure");
        }
    }
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/// @author: manifold.xyz

import "@openzeppelin/contracts/utils/introspection/IERC165.sol";

/**
 * @dev Core creator interface
 */
interface ICreatorCore is IERC165 {

    event ExtensionRegistered(address indexed extension, address indexed sender);
    event ExtensionUnregistered(address indexed extension, address indexed sender);
    event ExtensionBlacklisted(address indexed extension, address indexed sender);
    event MintPermissionsUpdated(address indexed extension, address indexed permissions, address indexed sender);
    event RoyaltiesUpdated(uint256 indexed tokenId, address payable[] receivers, uint256[] basisPoints);
    event DefaultRoyaltiesUpdated(address payable[] receivers, uint256[] basisPoints);
    event ApproveTransferUpdated(address extension);
    event ExtensionRoyaltiesUpdated(address indexed extension, address payable[] receivers, uint256[] basisPoints);
    event ExtensionApproveTransferUpdated(address indexed extension, bool enabled);

    /**
     * @dev gets address of all extensions
     */
    function getExtensions() external view returns (address[] memory);

    /**
     * @dev add an extension.  Can only be called by contract owner or admin.
     * extension address must point to a contract implementing ICreatorExtension.
     * Returns True if newly added, False if already added.
     */
    function registerExtension(address extension, string calldata baseURI) external;

    /**
     * @dev add an extension.  Can only be called by contract owner or admin.
     * extension address must point to a contract implementing ICreatorExtension.
     * Returns True if newly added, False if already added.
     */
    function registerExtension(address extension, string calldata baseURI, bool baseURIIdentical) external;

    /**
     * @dev add an extension.  Can only be called by contract owner or admin.
     * Returns True if removed, False if already removed.
     */
    function unregisterExtension(address extension) external;

    /**
     * @dev blacklist an extension.  Can only be called by contract owner or admin.
     * This function will destroy all ability to reference the metadata of any tokens created
     * by the specified extension. It will also unregister the extension if needed.
     * Returns True if removed, False if already removed.
     */
    function blacklistExtension(address extension) external;

    /**
     * @dev set the baseTokenURI of an extension.  Can only be called by extension.
     */
    function setBaseTokenURIExtension(string calldata uri) external;

    /**
     * @dev set the baseTokenURI of an extension.  Can only be called by extension.
     * For tokens with no uri configured, tokenURI will return "uri+tokenId"
     */
    function setBaseTokenURIExtension(string calldata uri, bool identical) external;

    /**
     * @dev set the common prefix of an extension.  Can only be called by extension.
     * If configured, and a token has a uri set, tokenURI will return "prefixURI+tokenURI"
     * Useful if you want to use ipfs/arweave
     */
    function setTokenURIPrefixExtension(string calldata prefix) external;

    /**
     * @dev set the tokenURI of a token extension.  Can only be called by extension that minted token.
     */
    function setTokenURIExtension(uint256 tokenId, string calldata uri) external;

    /**
     * @dev set the tokenURI of a token extension for multiple tokens.  Can only be called by extension that minted token.
     */
    function setTokenURIExtension(uint256[] memory tokenId, string[] calldata uri) external;

    /**
     * @dev set the baseTokenURI for tokens with no extension.  Can only be called by owner/admin.
     * For tokens with no uri configured, tokenURI will return "uri+tokenId"
     */
    function setBaseTokenURI(string calldata uri) external;

    /**
     * @dev set the common prefix for tokens with no extension.  Can only be called by owner/admin.
     * If configured, and a token has a uri set, tokenURI will return "prefixURI+tokenURI"
     * Useful if you want to use ipfs/arweave
     */
    function setTokenURIPrefix(string calldata prefix) external;

    /**
     * @dev set the tokenURI of a token with no extension.  Can only be called by owner/admin.
     */
    function setTokenURI(uint256 tokenId, string calldata uri) external;

    /**
     * @dev set the tokenURI of multiple tokens with no extension.  Can only be called by owner/admin.
     */
    function setTokenURI(uint256[] memory tokenIds, string[] calldata uris) external;

    /**
     * @dev set a permissions contract for an extension.  Used to control minting.
     */
    function setMintPermissions(address extension, address permissions) external;

    /**
     * @dev Configure so transfers of tokens created by the caller (must be extension) gets approval
     * from the extension before transferring
     */
    function setApproveTransferExtension(bool enabled) external;

    /**
     * @dev get the extension of a given token
     */
    function tokenExtension(uint256 tokenId) external view returns (address);

    /**
     * @dev Set default royalties
     */
    function setRoyalties(address payable[] calldata receivers, uint256[] calldata basisPoints) external;

    /**
     * @dev Set royalties of a token
     */
    function setRoyalties(uint256 tokenId, address payable[] calldata receivers, uint256[] calldata basisPoints) external;

    /**
     * @dev Set royalties of an extension
     */
    function setRoyaltiesExtension(address extension, address payable[] calldata receivers, uint256[] calldata basisPoints) external;

    /**
     * @dev Get royalites of a token.  Returns list of receivers and basisPoints
     */
    function getRoyalties(uint256 tokenId) external view returns (address payable[] memory, uint256[] memory);
    
    // Royalty support for various other standards
    function getFeeRecipients(uint256 tokenId) external view returns (address payable[] memory);
    function getFeeBps(uint256 tokenId) external view returns (uint[] memory);
    function getFees(uint256 tokenId) external view returns (address payable[] memory, uint256[] memory);
    function royaltyInfo(uint256 tokenId, uint256 value) external view returns (address, uint256);

    /**
     * @dev Set the default approve transfer contract location.
     */
    function setApproveTransfer(address extension) external; 

    /**
     * @dev Get the default approve transfer contract location.
     */
    function getApproveTransfer() external view returns (address);
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/// @author: manifold.xyz

import "./CreatorCore.sol";

/**
 * @dev Core ERC1155 creator interface
 */
interface IERC1155CreatorCore is ICreatorCore {

    /**
     * @dev mint a token with no extension. Can only be called by an admin.
     *
     * @param to       - Can be a single element array (all tokens go to same address) or multi-element array (single token to many recipients)
     * @param amounts  - Can be a single element array (all recipients get the same amount) or a multi-element array
     * @param uris     - If no elements, all tokens use the default uri.
     *                   If any element is an empty string, the corresponding token uses the default uri.
     *
     *
     * Requirements: If to is a multi-element array, then uris must be empty or single element array
     *               If to is a multi-element array, then amounts must be a single element array or a multi-element array of the same size
     *               If to is a single element array, uris must be empty or the same length as amounts
     *
     * Examples:
     *    mintBaseNew(['0x....1', '0x....2'], [1], [])
     *        Mints a single new token, and gives 1 each to '0x....1' and '0x....2'.  Token uses default uri.
     *    
     *    mintBaseNew(['0x....1', '0x....2'], [1, 2], [])
     *        Mints a single new token, and gives 1 to '0x....1' and 2 to '0x....2'.  Token uses default uri.
     *    
     *    mintBaseNew(['0x....1'], [1, 2], ["", "http://token2.com"])
     *        Mints two new tokens to '0x....1'. 1 of the first token, 2 of the second.  1st token uses default uri, second uses "http://token2.com".
     *    
     * @return Returns list of tokenIds minted
     */
    function mintBaseNew(address[] calldata to, uint256[] calldata amounts, string[] calldata uris) external returns (uint256[] memory);

    /**
     * @dev batch mint existing token with no extension. Can only be called by an admin.
     *
     * @param to        - Can be a single element array (all tokens go to same address) or multi-element array (single token to many recipients)
     * @param tokenIds  - Can be a single element array (all recipients get the same token) or a multi-element array
     * @param amounts   - Can be a single element array (all recipients get the same amount) or a multi-element array
     *
     * Requirements: If any of the parameters are multi-element arrays, they need to be the same length as other multi-element arrays
     *
     * Examples:
     *    mintBaseExisting(['0x....1', '0x....2'], [1], [10])
     *        Mints 10 of tokenId 1 to each of '0x....1' and '0x....2'.
     *    
     *    mintBaseExisting(['0x....1', '0x....2'], [1, 2], [10, 20])
     *        Mints 10 of tokenId 1 to '0x....1' and 20 of tokenId 2 to '0x....2'.
     *    
     *    mintBaseExisting(['0x....1'], [1, 2], [10, 20])
     *        Mints 10 of tokenId 1 and 20 of tokenId 2 to '0x....1'.
     *    
     *    mintBaseExisting(['0x....1', '0x....2'], [1], [10, 20])
     *        Mints 10 of tokenId 1 to '0x....1' and 20 of tokenId 1 to '0x....2'.
     *    
     */
    function mintBaseExisting(address[] calldata to, uint256[] calldata tokenIds, uint256[] calldata amounts) external;

    /**
     * @dev mint a token from an extension. Can only be called by a registered extension.
     *
     * @param to       - Can be a single element array (all tokens go to same address) or multi-element array (single token to many recipients)
     * @param amounts  - Can be a single element array (all recipients get the same amount) or a multi-element array
     * @param uris     - If no elements, all tokens use the default uri.
     *                   If any element is an empty string, the corresponding token uses the default uri.
     *
     *
     * Requirements: If to is a multi-element array, then uris must be empty or single element array
     *               If to is a multi-element array, then amounts must be a single element array or a multi-element array of the same size
     *               If to is a single element array, uris must be empty or the same length as amounts
     *
     * Examples:
     *    mintExtensionNew(['0x....1', '0x....2'], [1], [])
     *        Mints a single new token, and gives 1 each to '0x....1' and '0x....2'.  Token uses default uri.
     *    
     *    mintExtensionNew(['0x....1', '0x....2'], [1, 2], [])
     *        Mints a single new token, and gives 1 to '0x....1' and 2 to '0x....2'.  Token uses default uri.
     *    
     *    mintExtensionNew(['0x....1'], [1, 2], ["", "http://token2.com"])
     *        Mints two new tokens to '0x....1'. 1 of the first token, 2 of the second.  1st token uses default uri, second uses "http://token2.com".
     *    
     * @return Returns list of tokenIds minted
     */
    function mintExtensionNew(address[] calldata to, uint256[] calldata amounts, string[] calldata uris) external returns (uint256[] memory);

    /**
     * @dev batch mint existing token from extension. Can only be called by a registered extension.
     *
     * @param to        - Can be a single element array (all tokens go to same address) or multi-element array (single token to many recipients)
     * @param tokenIds  - Can be a single element array (all recipients get the same token) or a multi-element array
     * @param amounts   - Can be a single element array (all recipients get the same amount) or a multi-element array
     *
     * Requirements: If any of the parameters are multi-element arrays, they need to be the same length as other multi-element arrays
     *
     * Examples:
     *    mintExtensionExisting(['0x....1', '0x....2'], [1], [10])
     *        Mints 10 of tokenId 1 to each of '0x....1' and '0x....2'.
     *    
     *    mintExtensionExisting(['0x....1', '0x....2'], [1, 2], [10, 20])
     *        Mints 10 of tokenId 1 to '0x....1' and 20 of tokenId 2 to '0x....2'.
     *    
     *    mintExtensionExisting(['0x....1'], [1, 2], [10, 20])
     *        Mints 10 of tokenId 1 and 20 of tokenId 2 to '0x....1'.
     *    
     *    mintExtensionExisting(['0x....1', '0x....2'], [1], [10, 20])
     *        Mints 10 of tokenId 1 to '0x....1' and 20 of tokenId 1 to '0x....2'.
     *    
     */
    function mintExtensionExisting(address[] calldata to, uint256[] calldata tokenIds, uint256[] calldata amounts) external;

    /**
     * @dev burn tokens. Can only be called by token owner or approved address.
     * On burn, calls back to the registered extension's onBurn method
     */
    function burn(address account, uint256[] calldata tokenIds, uint256[] calldata amounts) external;

    /**
     * @dev Total amount of tokens in with a given tokenId.
     */
    function totalSupply(uint256 tokenId) external view returns (uint256);
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/// @author: manifold.xyz

import "@openzeppelin/contracts/utils/introspection/IERC165.sol";

/**
 * Implement this if you want your extension to approve a transfer
 */
interface IERC1155CreatorExtensionApproveTransfer is IERC165 {

    /**
     * @dev Set whether or not the creator contract will check the extension for approval of token transfer
     */
    function setApproveTransfer(address creator, bool enabled) external;

    /**
     * @dev Called by creator contract to approve a transfer
     */
    function approveTransfer(address operator, address from, address to, uint256[] calldata tokenIds, uint256[] calldata amounts) external returns (bool);
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/// @author: manifold.xyz

import "@openzeppelin/contracts/utils/introspection/IERC165.sol";

/**
 * @dev Your extension is required to implement this interface if it wishes
 * to receive the onBurn callback whenever a token the extension created is
 * burned
 */
interface IERC1155CreatorExtensionBurnable is IERC165 {
    /**
     * @dev callback handler for burn events
     */
    function onBurn(address owner, uint256[] calldata tokenIds, uint256[] calldata amounts) external;
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/// @author: manifold.xyz

import "@openzeppelin/contracts/utils/introspection/IERC165.sol";

/**
 * @dev Implement this if you want your extension to have overloadable royalties
 */
interface ICreatorExtensionRoyalties is IERC165 {

    /**
     * Get the royalties for a given creator/tokenId
     */
    function getRoyalties(address creator, uint256 tokenId) external view returns (address payable[] memory, uint256[] memory);
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/// @author: manifold.xyz

import "@openzeppelin/contracts/utils/introspection/IERC165.sol";

/**
 * @dev Implement this if you want your extension to have overloadable URI's
 */
interface ICreatorExtensionTokenURI is IERC165 {

    /**
     * Get the uri for a given creator/tokenId
     */
    function tokenURI(address creator, uint256 tokenId) external view returns (string memory);
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/// @author: manifold.xyz

import "@openzeppelin/contracts/utils/introspection/IERC165.sol";

/**
 * @dev Required interface of an ERC1155Creator compliant extension contracts.
 */
interface IERC1155CreatorMintPermissions is IERC165 {

    /**
     * @dev get approval to mint
     */
    function approveMint(address extension, address[] calldata to, uint256[] calldata tokenIds, uint256[] calldata amounts) external;
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/// @author: manifold.xyz

import "@openzeppelin/contracts/utils/structs/EnumerableSet.sol";
import "@openzeppelin/contracts/utils/introspection/ERC165.sol";
import "@openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol";
import "./IAdminControl.sol";

abstract contract AdminControlUpgradeable is OwnableUpgradeable, IAdminControl, ERC165 {
    using EnumerableSet for EnumerableSet.AddressSet;

    // Track registered admins
    EnumerableSet.AddressSet private _admins;

    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) {
        return interfaceId == type(IAdminControl).interfaceId
            || super.supportsInterface(interfaceId);
    }

    /**
     * @dev Only allows approved admins to call the specified function
     */
    modifier adminRequired() {
        require(owner() == msg.sender || _admins.contains(msg.sender), "AdminControl: Must be owner or admin");
        _;
    }   

    /**
     * @dev See {IAdminControl-getAdmins}.
     */
    function getAdmins() external view override returns (address[] memory admins) {
        admins = new address[](_admins.length());
        for (uint i = 0; i < _admins.length(); i++) {
            admins[i] = _admins.at(i);
        }
        return admins;
    }

    /**
     * @dev See {IAdminControl-approveAdmin}.
     */
    function approveAdmin(address admin) external override onlyOwner {
        if (!_admins.contains(admin)) {
            emit AdminApproved(admin, msg.sender);
            _admins.add(admin);
        }
    }

    /**
     * @dev See {IAdminControl-revokeAdmin}.
     */
    function revokeAdmin(address admin) external override onlyOwner {
        if (_admins.contains(admin)) {
            emit AdminRevoked(admin, msg.sender);
            _admins.remove(admin);
        }
    }

    /**
     * @dev See {IAdminControl-isAdmin}.
     */
    function isAdmin(address admin) public override view returns (bool) {
        return (owner() == admin || _admins.contains(admin));
    }

}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/// @author: manifold.xyz

import "@openzeppelin/contracts/utils/introspection/IERC165.sol";

/**
 * @dev Interface for admin control
 */
interface IAdminControl is IERC165 {

    event AdminApproved(address indexed account, address indexed sender);
    event AdminRevoked(address indexed account, address indexed sender);

    /**
     * @dev gets address of all admins
     */
    function getAdmins() external view returns (address[] memory);

    /**
     * @dev add an admin.  Can only be called by contract owner.
     */
    function approveAdmin(address admin) external;

    /**
     * @dev remove an admin.  Can only be called by contract owner.
     */
    function revokeAdmin(address admin) external;

    /**
     * @dev checks whether or not given address is an admin
     * Returns True if they are
     */
    function isAdmin(address admin) external view returns (bool);

}

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

pragma solidity ^0.8.0;

import "../utils/ContextUpgradeable.sol";
import "../proxy/utils/Initializable.sol";

/**
 * @dev Contract module which provides a basic access control mechanism, where
 * there is an account (an owner) that can be granted exclusive access to
 * specific functions.
 *
 * By default, the owner account will be the one that deploys the contract. This
 * can later be changed with {transferOwnership}.
 *
 * This module is used through inheritance. It will make available the modifier
 * `onlyOwner`, which can be applied to your functions to restrict their use to
 * the owner.
 */
abstract contract OwnableUpgradeable is Initializable, ContextUpgradeable {
    address private _owner;

    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    /**
     * @dev Initializes the contract setting the deployer as the initial owner.
     */
    function __Ownable_init() internal onlyInitializing {
        __Ownable_init_unchained();
    }

    function __Ownable_init_unchained() internal onlyInitializing {
        _transferOwnership(_msgSender());
    }

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        _checkOwner();
        _;
    }

    /**
     * @dev Returns the address of the current owner.
     */
    function owner() public view virtual returns (address) {
        return _owner;
    }

    /**
     * @dev Throws if the sender is not the owner.
     */
    function _checkOwner() internal view virtual {
        require(owner() == _msgSender(), "Ownable: caller is not the owner");
    }

    /**
     * @dev Leaves the contract without owner. It will not be possible to call
     * `onlyOwner` functions anymore. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby removing any functionality that is only available to the owner.
     */
    function renounceOwnership() public virtual onlyOwner {
        _transferOwnership(address(0));
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Can only be called by the current owner.
     */
    function transferOwnership(address newOwner) public virtual onlyOwner {
        require(newOwner != address(0), "Ownable: new owner is the zero address");
        _transferOwnership(newOwner);
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Internal function without access restriction.
     */
    function _transferOwnership(address newOwner) internal virtual {
        address oldOwner = _owner;
        _owner = newOwner;
        emit OwnershipTransferred(oldOwner, newOwner);
    }

    /**
     * @dev This empty reserved space is put in place to allow future versions to add new
     * variables without shifting down storage in the inheritance chain.
     * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
     */
    uint256[49] private __gap;
}

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

pragma solidity ^0.8.2;

import "../../utils/AddressUpgradeable.sol";

/**
 * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed
 * behind a proxy. Since proxied contracts do not make use of a constructor, it's common to move constructor logic to an
 * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer
 * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.
 *
 * The initialization functions use a version number. Once a version number is used, it is consumed and cannot be
 * reused. This mechanism prevents re-execution of each "step" but allows the creation of new initialization steps in
 * case an upgrade adds a module that needs to be initialized.
 *
 * For example:
 *
 * [.hljs-theme-light.nopadding]
 * ```
 * contract MyToken is ERC20Upgradeable {
 *     function initialize() initializer public {
 *         __ERC20_init("MyToken", "MTK");
 *     }
 * }
 * contract MyTokenV2 is MyToken, ERC20PermitUpgradeable {
 *     function initializeV2() reinitializer(2) public {
 *         __ERC20Permit_init("MyToken");
 *     }
 * }
 * ```
 *
 * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as
 * possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}.
 *
 * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure
 * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.
 *
 * [CAUTION]
 * ====
 * Avoid leaving a contract uninitialized.
 *
 * An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation
 * contract, which may impact the proxy. To prevent the implementation contract from being used, you should invoke
 * the {_disableInitializers} function in the constructor to automatically lock it when it is deployed:
 *
 * [.hljs-theme-light.nopadding]
 * ```
 * /// @custom:oz-upgrades-unsafe-allow constructor
 * constructor() {
 *     _disableInitializers();
 * }
 * ```
 * ====
 */
abstract contract Initializable {
    /**
     * @dev Indicates that the contract has been initialized.
     * @custom:oz-retyped-from bool
     */
    uint8 private _initialized;

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

    /**
     * @dev Triggered when the contract has been initialized or reinitialized.
     */
    event Initialized(uint8 version);

    /**
     * @dev A modifier that defines a protected initializer function that can be invoked at most once. In its scope,
     * `onlyInitializing` functions can be used to initialize parent contracts. Equivalent to `reinitializer(1)`.
     */
    modifier initializer() {
        bool isTopLevelCall = !_initializing;
        require(
            (isTopLevelCall && _initialized < 1) || (!AddressUpgradeable.isContract(address(this)) && _initialized == 1),
            "Initializable: contract is already initialized"
        );
        _initialized = 1;
        if (isTopLevelCall) {
            _initializing = true;
        }
        _;
        if (isTopLevelCall) {
            _initializing = false;
            emit Initialized(1);
        }
    }

    /**
     * @dev A modifier that defines a protected reinitializer function that can be invoked at most once, and only if the
     * contract hasn't been initialized to a greater version before. In its scope, `onlyInitializing` functions can be
     * used to initialize parent contracts.
     *
     * `initializer` is equivalent to `reinitializer(1)`, so a reinitializer may be used after the original
     * initialization step. This is essential to configure modules that are added through upgrades and that require
     * initialization.
     *
     * Note that versions can jump in increments greater than 1; this implies that if multiple reinitializers coexist in
     * a contract, executing them in the right order is up to the developer or operator.
     */
    modifier reinitializer(uint8 version) {
        require(!_initializing && _initialized < version, "Initializable: contract is already initialized");
        _initialized = version;
        _initializing = true;
        _;
        _initializing = false;
        emit Initialized(version);
    }

    /**
     * @dev Modifier to protect an initialization function so that it can only be invoked by functions with the
     * {initializer} and {reinitializer} modifiers, directly or indirectly.
     */
    modifier onlyInitializing() {
        require(_initializing, "Initializable: contract is not initializing");
        _;
    }

    /**
     * @dev Locks the contract, preventing any future reinitialization. This cannot be part of an initializer call.
     * Calling this in the constructor of a contract will prevent that contract from being initialized or reinitialized
     * to any version. It is recommended to use this to lock implementation contracts that are designed to be called
     * through proxies.
     */
    function _disableInitializers() internal virtual {
        require(!_initializing, "Initializable: contract is initializing");
        if (_initialized < type(uint8).max) {
            _initialized = type(uint8).max;
            emit Initialized(type(uint8).max);
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (token/ERC1155/ERC1155.sol)

pragma solidity ^0.8.0;

import "./IERC1155Upgradeable.sol";
import "./IERC1155ReceiverUpgradeable.sol";
import "./extensions/IERC1155MetadataURIUpgradeable.sol";
import "../../utils/AddressUpgradeable.sol";
import "../../utils/ContextUpgradeable.sol";
import "../../utils/introspection/ERC165Upgradeable.sol";
import "../../proxy/utils/Initializable.sol";

/**
 * @dev Implementation of the basic standard multi-token.
 * See https://eips.ethereum.org/EIPS/eip-1155
 * Originally based on code by Enjin: https://github.com/enjin/erc-1155
 *
 * _Available since v3.1._
 */
contract ERC1155Upgradeable is Initializable, ContextUpgradeable, ERC165Upgradeable, IERC1155Upgradeable, IERC1155MetadataURIUpgradeable {
    using AddressUpgradeable for address;

    // Mapping from token ID to account balances
    mapping(uint256 => mapping(address => uint256)) private _balances;

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

    // Used as the URI for all token types by relying on ID substitution, e.g. https://token-cdn-domain/{id}.json
    string private _uri;

    /**
     * @dev See {_setURI}.
     */
    function __ERC1155_init(string memory uri_) internal onlyInitializing {
        __ERC1155_init_unchained(uri_);
    }

    function __ERC1155_init_unchained(string memory uri_) internal onlyInitializing {
        _setURI(uri_);
    }

    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165Upgradeable, IERC165Upgradeable) returns (bool) {
        return
            interfaceId == type(IERC1155Upgradeable).interfaceId ||
            interfaceId == type(IERC1155MetadataURIUpgradeable).interfaceId ||
            super.supportsInterface(interfaceId);
    }

    /**
     * @dev See {IERC1155MetadataURI-uri}.
     *
     * This implementation returns the same URI for *all* token types. It relies
     * on the token type ID substitution mechanism
     * https://eips.ethereum.org/EIPS/eip-1155#metadata[defined in the EIP].
     *
     * Clients calling this function must replace the `\{id\}` substring with the
     * actual token type ID.
     */
    function uri(uint256) public view virtual override returns (string memory) {
        return _uri;
    }

    /**
     * @dev See {IERC1155-balanceOf}.
     *
     * Requirements:
     *
     * - `account` cannot be the zero address.
     */
    function balanceOf(address account, uint256 id) public view virtual override returns (uint256) {
        require(account != address(0), "ERC1155: address zero is not a valid owner");
        return _balances[id][account];
    }

    /**
     * @dev See {IERC1155-balanceOfBatch}.
     *
     * Requirements:
     *
     * - `accounts` and `ids` must have the same length.
     */
    function balanceOfBatch(address[] memory accounts, uint256[] memory ids)
        public
        view
        virtual
        override
        returns (uint256[] memory)
    {
        require(accounts.length == ids.length, "ERC1155: accounts and ids length mismatch");

        uint256[] memory batchBalances = new uint256[](accounts.length);

        for (uint256 i = 0; i < accounts.length; ++i) {
            batchBalances[i] = balanceOf(accounts[i], ids[i]);
        }

        return batchBalances;
    }

    /**
     * @dev See {IERC1155-setApprovalForAll}.
     */
    function setApprovalForAll(address operator, bool approved) public virtual override {
        _setApprovalForAll(_msgSender(), operator, approved);
    }

    /**
     * @dev See {IERC1155-isApprovedForAll}.
     */
    function isApprovedForAll(address account, address operator) public view virtual override returns (bool) {
        return _operatorApprovals[account][operator];
    }

    /**
     * @dev See {IERC1155-safeTransferFrom}.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 id,
        uint256 amount,
        bytes memory data
    ) public virtual override {
        require(
            from == _msgSender() || isApprovedForAll(from, _msgSender()),
            "ERC1155: caller is not token owner nor approved"
        );
        _safeTransferFrom(from, to, id, amount, data);
    }

    /**
     * @dev See {IERC1155-safeBatchTransferFrom}.
     */
    function safeBatchTransferFrom(
        address from,
        address to,
        uint256[] memory ids,
        uint256[] memory amounts,
        bytes memory data
    ) public virtual override {
        require(
            from == _msgSender() || isApprovedForAll(from, _msgSender()),
            "ERC1155: caller is not token owner nor approved"
        );
        _safeBatchTransferFrom(from, to, ids, amounts, data);
    }

    /**
     * @dev Transfers `amount` tokens of token type `id` from `from` to `to`.
     *
     * Emits a {TransferSingle} event.
     *
     * Requirements:
     *
     * - `to` cannot be the zero address.
     * - `from` must have a balance of tokens of type `id` of at least `amount`.
     * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155Received} and return the
     * acceptance magic value.
     */
    function _safeTransferFrom(
        address from,
        address to,
        uint256 id,
        uint256 amount,
        bytes memory data
    ) internal virtual {
        require(to != address(0), "ERC1155: transfer to the zero address");

        address operator = _msgSender();
        uint256[] memory ids = _asSingletonArray(id);
        uint256[] memory amounts = _asSingletonArray(amount);

        _beforeTokenTransfer(operator, from, to, ids, amounts, data);

        uint256 fromBalance = _balances[id][from];
        require(fromBalance >= amount, "ERC1155: insufficient balance for transfer");
        unchecked {
            _balances[id][from] = fromBalance - amount;
        }
        _balances[id][to] += amount;

        emit TransferSingle(operator, from, to, id, amount);

        _afterTokenTransfer(operator, from, to, ids, amounts, data);

        _doSafeTransferAcceptanceCheck(operator, from, to, id, amount, data);
    }

    /**
     * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {_safeTransferFrom}.
     *
     * Emits a {TransferBatch} event.
     *
     * Requirements:
     *
     * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155BatchReceived} and return the
     * acceptance magic value.
     */
    function _safeBatchTransferFrom(
        address from,
        address to,
        uint256[] memory ids,
        uint256[] memory amounts,
        bytes memory data
    ) internal virtual {
        require(ids.length == amounts.length, "ERC1155: ids and amounts length mismatch");
        require(to != address(0), "ERC1155: transfer to the zero address");

        address operator = _msgSender();

        _beforeTokenTransfer(operator, from, to, ids, amounts, data);

        for (uint256 i = 0; i < ids.length; ++i) {
            uint256 id = ids[i];
            uint256 amount = amounts[i];

            uint256 fromBalance = _balances[id][from];
            require(fromBalance >= amount, "ERC1155: insufficient balance for transfer");
            unchecked {
                _balances[id][from] = fromBalance - amount;
            }
            _balances[id][to] += amount;
        }

        emit TransferBatch(operator, from, to, ids, amounts);

        _afterTokenTransfer(operator, from, to, ids, amounts, data);

        _doSafeBatchTransferAcceptanceCheck(operator, from, to, ids, amounts, data);
    }

    /**
     * @dev Sets a new URI for all token types, by relying on the token type ID
     * substitution mechanism
     * https://eips.ethereum.org/EIPS/eip-1155#metadata[defined in the EIP].
     *
     * By this mechanism, any occurrence of the `\{id\}` substring in either the
     * URI or any of the amounts in the JSON file at said URI will be replaced by
     * clients with the token type ID.
     *
     * For example, the `https://token-cdn-domain/\{id\}.json` URI would be
     * interpreted by clients as
     * `https://token-cdn-domain/000000000000000000000000000000000000000000000000000000000004cce0.json`
     * for token type ID 0x4cce0.
     *
     * See {uri}.
     *
     * Because these URIs cannot be meaningfully represented by the {URI} event,
     * this function emits no events.
     */
    function _setURI(string memory newuri) internal virtual {
        _uri = newuri;
    }

    /**
     * @dev Creates `amount` tokens of token type `id`, and assigns them to `to`.
     *
     * Emits a {TransferSingle} event.
     *
     * Requirements:
     *
     * - `to` cannot be the zero address.
     * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155Received} and return the
     * acceptance magic value.
     */
    function _mint(
        address to,
        uint256 id,
        uint256 amount,
        bytes memory data
    ) internal virtual {
        require(to != address(0), "ERC1155: mint to the zero address");

        address operator = _msgSender();
        uint256[] memory ids = _asSingletonArray(id);
        uint256[] memory amounts = _asSingletonArray(amount);

        _beforeTokenTransfer(operator, address(0), to, ids, amounts, data);

        _balances[id][to] += amount;
        emit TransferSingle(operator, address(0), to, id, amount);

        _afterTokenTransfer(operator, address(0), to, ids, amounts, data);

        _doSafeTransferAcceptanceCheck(operator, address(0), to, id, amount, data);
    }

    /**
     * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {_mint}.
     *
     * Emits a {TransferBatch} event.
     *
     * Requirements:
     *
     * - `ids` and `amounts` must have the same length.
     * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155BatchReceived} and return the
     * acceptance magic value.
     */
    function _mintBatch(
        address to,
        uint256[] memory ids,
        uint256[] memory amounts,
        bytes memory data
    ) internal virtual {
        require(to != address(0), "ERC1155: mint to the zero address");
        require(ids.length == amounts.length, "ERC1155: ids and amounts length mismatch");

        address operator = _msgSender();

        _beforeTokenTransfer(operator, address(0), to, ids, amounts, data);

        for (uint256 i = 0; i < ids.length; i++) {
            _balances[ids[i]][to] += amounts[i];
        }

        emit TransferBatch(operator, address(0), to, ids, amounts);

        _afterTokenTransfer(operator, address(0), to, ids, amounts, data);

        _doSafeBatchTransferAcceptanceCheck(operator, address(0), to, ids, amounts, data);
    }

    /**
     * @dev Destroys `amount` tokens of token type `id` from `from`
     *
     * Emits a {TransferSingle} event.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `from` must have at least `amount` tokens of token type `id`.
     */
    function _burn(
        address from,
        uint256 id,
        uint256 amount
    ) internal virtual {
        require(from != address(0), "ERC1155: burn from the zero address");

        address operator = _msgSender();
        uint256[] memory ids = _asSingletonArray(id);
        uint256[] memory amounts = _asSingletonArray(amount);

        _beforeTokenTransfer(operator, from, address(0), ids, amounts, "");

        uint256 fromBalance = _balances[id][from];
        require(fromBalance >= amount, "ERC1155: burn amount exceeds balance");
        unchecked {
            _balances[id][from] = fromBalance - amount;
        }

        emit TransferSingle(operator, from, address(0), id, amount);

        _afterTokenTransfer(operator, from, address(0), ids, amounts, "");
    }

    /**
     * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {_burn}.
     *
     * Emits a {TransferBatch} event.
     *
     * Requirements:
     *
     * - `ids` and `amounts` must have the same length.
     */
    function _burnBatch(
        address from,
        uint256[] memory ids,
        uint256[] memory amounts
    ) internal virtual {
        require(from != address(0), "ERC1155: burn from the zero address");
        require(ids.length == amounts.length, "ERC1155: ids and amounts length mismatch");

        address operator = _msgSender();

        _beforeTokenTransfer(operator, from, address(0), ids, amounts, "");

        for (uint256 i = 0; i < ids.length; i++) {
            uint256 id = ids[i];
            uint256 amount = amounts[i];

            uint256 fromBalance = _balances[id][from];
            require(fromBalance >= amount, "ERC1155: burn amount exceeds balance");
            unchecked {
                _balances[id][from] = fromBalance - amount;
            }
        }

        emit TransferBatch(operator, from, address(0), ids, amounts);

        _afterTokenTransfer(operator, from, address(0), ids, amounts, "");
    }

    /**
     * @dev Approve `operator` to operate on all of `owner` tokens
     *
     * Emits an {ApprovalForAll} event.
     */
    function _setApprovalForAll(
        address owner,
        address operator,
        bool approved
    ) internal virtual {
        require(owner != operator, "ERC1155: setting approval status for self");
        _operatorApprovals[owner][operator] = approved;
        emit ApprovalForAll(owner, operator, approved);
    }

    /**
     * @dev Hook that is called before any token transfer. This includes minting
     * and burning, as well as batched variants.
     *
     * The same hook is called on both single and batched variants. For single
     * transfers, the length of the `ids` and `amounts` arrays will be 1.
     *
     * Calling conditions (for each `id` and `amount` pair):
     *
     * - When `from` and `to` are both non-zero, `amount` of ``from``'s tokens
     * of token type `id` will be  transferred to `to`.
     * - When `from` is zero, `amount` tokens of token type `id` will be minted
     * for `to`.
     * - when `to` is zero, `amount` of ``from``'s tokens of token type `id`
     * will be burned.
     * - `from` and `to` are never both zero.
     * - `ids` and `amounts` have the same, non-zero length.
     *
     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
     */
    function _beforeTokenTransfer(
        address operator,
        address from,
        address to,
        uint256[] memory ids,
        uint256[] memory amounts,
        bytes memory data
    ) internal virtual {}

    /**
     * @dev Hook that is called after any token transfer. This includes minting
     * and burning, as well as batched variants.
     *
     * The same hook is called on both single and batched variants. For single
     * transfers, the length of the `id` and `amount` arrays will be 1.
     *
     * Calling conditions (for each `id` and `amount` pair):
     *
     * - When `from` and `to` are both non-zero, `amount` of ``from``'s tokens
     * of token type `id` will be  transferred to `to`.
     * - When `from` is zero, `amount` tokens of token type `id` will be minted
     * for `to`.
     * - when `to` is zero, `amount` of ``from``'s tokens of token type `id`
     * will be burned.
     * - `from` and `to` are never both zero.
     * - `ids` and `amounts` have the same, non-zero length.
     *
     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
     */
    function _afterTokenTransfer(
        address operator,
        address from,
        address to,
        uint256[] memory ids,
        uint256[] memory amounts,
        bytes memory data
    ) internal virtual {}

    function _doSafeTransferAcceptanceCheck(
        address operator,
        address from,
        address to,
        uint256 id,
        uint256 amount,
        bytes memory data
    ) private {
        if (to.isContract()) {
            try IERC1155ReceiverUpgradeable(to).onERC1155Received(operator, from, id, amount, data) returns (bytes4 response) {
                if (response != IERC1155ReceiverUpgradeable.onERC1155Received.selector) {
                    revert("ERC1155: ERC1155Receiver rejected tokens");
                }
            } catch Error(string memory reason) {
                revert(reason);
            } catch {
                revert("ERC1155: transfer to non ERC1155Receiver implementer");
            }
        }
    }

    function _doSafeBatchTransferAcceptanceCheck(
        address operator,
        address from,
        address to,
        uint256[] memory ids,
        uint256[] memory amounts,
        bytes memory data
    ) private {
        if (to.isContract()) {
            try IERC1155ReceiverUpgradeable(to).onERC1155BatchReceived(operator, from, ids, amounts, data) returns (
                bytes4 response
            ) {
                if (response != IERC1155ReceiverUpgradeable.onERC1155BatchReceived.selector) {
                    revert("ERC1155: ERC1155Receiver rejected tokens");
                }
            } catch Error(string memory reason) {
                revert(reason);
            } catch {
                revert("ERC1155: transfer to non ERC1155Receiver implementer");
            }
        }
    }

    function _asSingletonArray(uint256 element) private pure returns (uint256[] memory) {
        uint256[] memory array = new uint256[](1);
        array[0] = element;

        return array;
    }

    /**
     * @dev This empty reserved space is put in place to allow future versions to add new
     * variables without shifting down storage in the inheritance chain.
     * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
     */
    uint256[47] private __gap;
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (token/ERC1155/IERC1155Receiver.sol)

pragma solidity ^0.8.0;

import "../../utils/introspection/IERC165Upgradeable.sol";

/**
 * @dev _Available since v3.1._
 */
interface IERC1155ReceiverUpgradeable is IERC165Upgradeable {
    /**
     * @dev Handles the receipt of a single ERC1155 token type. This function is
     * called at the end of a `safeTransferFrom` after the balance has been updated.
     *
     * NOTE: To accept the transfer, this must return
     * `bytes4(keccak256("onERC1155Received(address,address,uint256,uint256,bytes)"))`
     * (i.e. 0xf23a6e61, or its own function selector).
     *
     * @param operator The address which initiated the transfer (i.e. msg.sender)
     * @param from The address which previously owned the token
     * @param id The ID of the token being transferred
     * @param value The amount of tokens being transferred
     * @param data Additional data with no specified format
     * @return `bytes4(keccak256("onERC1155Received(address,address,uint256,uint256,bytes)"))` if transfer is allowed
     */
    function onERC1155Received(
        address operator,
        address from,
        uint256 id,
        uint256 value,
        bytes calldata data
    ) external returns (bytes4);

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

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (token/ERC1155/IERC1155.sol)

pragma solidity ^0.8.0;

import "../../utils/introspection/IERC165Upgradeable.sol";

/**
 * @dev Required interface of an ERC1155 compliant contract, as defined in the
 * https://eips.ethereum.org/EIPS/eip-1155[EIP].
 *
 * _Available since v3.1._
 */
interface IERC1155Upgradeable is IERC165Upgradeable {
    /**
     * @dev Emitted when `value` tokens of token type `id` are transferred from `from` to `to` by `operator`.
     */
    event TransferSingle(address indexed operator, address indexed from, address indexed to, uint256 id, uint256 value);

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

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

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

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

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

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

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

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

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

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC1155/extensions/IERC1155MetadataURI.sol)

pragma solidity ^0.8.0;

import "../IERC1155Upgradeable.sol";

/**
 * @dev Interface of the optional ERC1155MetadataExtension interface, as defined
 * in the https://eips.ethereum.org/EIPS/eip-1155#metadata-extensions[EIP].
 *
 * _Available since v3.1._
 */
interface IERC1155MetadataURIUpgradeable is IERC1155Upgradeable {
    /**
     * @dev Returns the URI for token type `id`.
     *
     * If the `\{id\}` substring is present in the URI, it must be replaced by
     * clients with the actual token type ID.
     */
    function uri(uint256 id) external view returns (string memory);
}

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

pragma solidity ^0.8.1;

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

        return account.code.length > 0;
    }

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

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

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

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

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

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

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

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

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

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

    /**
     * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the
     * revert reason using the provided one.
     *
     * _Available since v4.3._
     */
    function verifyCallResult(
        bool success,
        bytes memory returndata,
        string memory errorMessage
    ) internal pure returns (bytes memory) {
        if (success) {
            return returndata;
        } else {
            // Look for revert reason and bubble it up if present
            if (returndata.length > 0) {
                // The easiest way to bubble the revert reason is using memory via assembly
                /// @solidity memory-safe-assembly
                assembly {
                    let returndata_size := mload(returndata)
                    revert(add(32, returndata), returndata_size)
                }
            } else {
                revert(errorMessage);
            }
        }
    }
}

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

pragma solidity ^0.8.0;
import "../proxy/utils/Initializable.sol";

/**
 * @dev Provides information about the current execution context, including the
 * sender of the transaction and its data. While these are generally available
 * via msg.sender and msg.data, they should not be accessed in such a direct
 * manner, since when dealing with meta-transactions the account sending and
 * paying for execution may not be the actual sender (as far as an application
 * is concerned).
 *
 * This contract is only required for intermediate, library-like contracts.
 */
abstract contract ContextUpgradeable is Initializable {
    function __Context_init() internal onlyInitializing {
    }

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

    function _msgData() internal view virtual returns (bytes calldata) {
        return msg.data;
    }

    /**
     * @dev This empty reserved space is put in place to allow future versions to add new
     * variables without shifting down storage in the inheritance chain.
     * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
     */
    uint256[50] private __gap;
}

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

pragma solidity ^0.8.0;

import "./IERC165Upgradeable.sol";
import "../../proxy/utils/Initializable.sol";

/**
 * @dev Implementation of the {IERC165} interface.
 *
 * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check
 * for the additional interface id that will be supported. For example:
 *
 * ```solidity
 * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
 *     return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);
 * }
 * ```
 *
 * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation.
 */
abstract contract ERC165Upgradeable is Initializable, IERC165Upgradeable {
    function __ERC165_init() internal onlyInitializing {
    }

    function __ERC165_init_unchained() internal onlyInitializing {
    }
    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
        return interfaceId == type(IERC165Upgradeable).interfaceId;
    }

    /**
     * @dev This empty reserved space is put in place to allow future versions to add new
     * variables without shifting down storage in the inheritance chain.
     * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
     */
    uint256[50] private __gap;
}

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

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC165 standard, as defined in the
 * https://eips.ethereum.org/EIPS/eip-165[EIP].
 *
 * Implementers can declare support of contract interfaces, which can then be
 * queried by others ({ERC165Checker}).
 *
 * For an implementation, see {ERC165}.
 */
interface IERC165Upgradeable {
    /**
     * @dev Returns true if this contract implements the interface defined by
     * `interfaceId`. See the corresponding
     * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]
     * to learn more about how these ids are created.
     *
     * This function call must use less than 30 000 gas.
     */
    function supportsInterface(bytes4 interfaceId) external view returns (bool);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (security/ReentrancyGuard.sol)

pragma solidity ^0.8.0;

/**
 * @dev Contract module that helps prevent reentrant calls to a function.
 *
 * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier
 * available, which can be applied to functions to make sure there are no nested
 * (reentrant) calls to them.
 *
 * Note that because there is a single `nonReentrant` guard, functions marked as
 * `nonReentrant` may not call one another. This can be worked around by making
 * those functions `private`, and then adding `external` `nonReentrant` entry
 * points to them.
 *
 * TIP: If you would like to learn more about reentrancy and alternative ways
 * to protect against it, check out our blog post
 * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].
 */
abstract contract ReentrancyGuard {
    // Booleans are more expensive than uint256 or any type that takes up a full
    // word because each write operation emits an extra SLOAD to first read the
    // slot's contents, replace the bits taken up by the boolean, and then write
    // back. This is the compiler's defense against contract upgrades and
    // pointer aliasing, and it cannot be disabled.

    // The values being non-zero value makes deployment a bit more expensive,
    // but in exchange the refund on every call to nonReentrant will be lower in
    // amount. Since refunds are capped to a percentage of the total
    // transaction's gas, it is best to keep them low in cases like this one, to
    // increase the likelihood of the full refund coming into effect.
    uint256 private constant _NOT_ENTERED = 1;
    uint256 private constant _ENTERED = 2;

    uint256 private _status;

    constructor() {
        _status = _NOT_ENTERED;
    }

    /**
     * @dev Prevents a contract from calling itself, directly or indirectly.
     * Calling a `nonReentrant` function from another `nonReentrant`
     * function is not supported. It is possible to prevent this from happening
     * by making the `nonReentrant` function external, and making it call a
     * `private` function that does the actual work.
     */
    modifier nonReentrant() {
        // On the first call to nonReentrant, _notEntered will be true
        require(_status != _ENTERED, "ReentrancyGuard: reentrant call");

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

        _;

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

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

pragma solidity ^0.8.0;

/**
 * @dev String operations.
 */
library Strings {
    bytes16 private constant _HEX_SYMBOLS = "0123456789abcdef";
    uint8 private constant _ADDRESS_LENGTH = 20;

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

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

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

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

    /**
     * @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal representation.
     */
    function toHexString(address addr) internal pure returns (string memory) {
        return toHexString(uint256(uint160(addr)), _ADDRESS_LENGTH);
    }
}

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

pragma solidity ^0.8.0;

import "./IERC165.sol";

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

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.2) (utils/introspection/ERC165Checker.sol)

pragma solidity ^0.8.0;

import "./IERC165.sol";

/**
 * @dev Library used to query support of an interface declared via {IERC165}.
 *
 * Note that these functions return the actual result of the query: they do not
 * `revert` if an interface is not supported. It is up to the caller to decide
 * what to do in these cases.
 */
library ERC165Checker {
    // As per the EIP-165 spec, no interface should ever match 0xffffffff
    bytes4 private constant _INTERFACE_ID_INVALID = 0xffffffff;

    /**
     * @dev Returns true if `account` supports the {IERC165} interface,
     */
    function supportsERC165(address account) internal view returns (bool) {
        // Any contract that implements ERC165 must explicitly indicate support of
        // InterfaceId_ERC165 and explicitly indicate non-support of InterfaceId_Invalid
        return
            _supportsERC165Interface(account, type(IERC165).interfaceId) &&
            !_supportsERC165Interface(account, _INTERFACE_ID_INVALID);
    }

    /**
     * @dev Returns true if `account` supports the interface defined by
     * `interfaceId`. Support for {IERC165} itself is queried automatically.
     *
     * See {IERC165-supportsInterface}.
     */
    function supportsInterface(address account, bytes4 interfaceId) internal view returns (bool) {
        // query support of both ERC165 as per the spec and support of _interfaceId
        return supportsERC165(account) && _supportsERC165Interface(account, interfaceId);
    }

    /**
     * @dev Returns a boolean array where each value corresponds to the
     * interfaces passed in and whether they're supported or not. This allows
     * you to batch check interfaces for a contract where your expectation
     * is that some interfaces may not be supported.
     *
     * See {IERC165-supportsInterface}.
     *
     * _Available since v3.4._
     */
    function getSupportedInterfaces(address account, bytes4[] memory interfaceIds)
        internal
        view
        returns (bool[] memory)
    {
        // an array of booleans corresponding to interfaceIds and whether they're supported or not
        bool[] memory interfaceIdsSupported = new bool[](interfaceIds.length);

        // query support of ERC165 itself
        if (supportsERC165(account)) {
            // query support of each interface in interfaceIds
            for (uint256 i = 0; i < interfaceIds.length; i++) {
                interfaceIdsSupported[i] = _supportsERC165Interface(account, interfaceIds[i]);
            }
        }

        return interfaceIdsSupported;
    }

    /**
     * @dev Returns true if `account` supports all the interfaces defined in
     * `interfaceIds`. Support for {IERC165} itself is queried automatically.
     *
     * Batch-querying can lead to gas savings by skipping repeated checks for
     * {IERC165} support.
     *
     * See {IERC165-supportsInterface}.
     */
    function supportsAllInterfaces(address account, bytes4[] memory interfaceIds) internal view returns (bool) {
        // query support of ERC165 itself
        if (!supportsERC165(account)) {
            return false;
        }

        // query support of each interface in _interfaceIds
        for (uint256 i = 0; i < interfaceIds.length; i++) {
            if (!_supportsERC165Interface(account, interfaceIds[i])) {
                return false;
            }
        }

        // all interfaces supported
        return true;
    }

    /**
     * @notice Query if a contract implements an interface, does not check ERC165 support
     * @param account The address of the contract to query for support of an interface
     * @param interfaceId The interface identifier, as specified in ERC-165
     * @return true if the contract at account indicates support of the interface with
     * identifier interfaceId, false otherwise
     * @dev Assumes that account contains a contract that supports ERC165, otherwise
     * the behavior of this method is undefined. This precondition can be checked
     * with {supportsERC165}.
     * Interface identification is specified in ERC-165.
     */
    function _supportsERC165Interface(address account, bytes4 interfaceId) private view returns (bool) {
        // prepare call
        bytes memory encodedParams = abi.encodeWithSelector(IERC165.supportsInterface.selector, interfaceId);

        // perform static call
        bool success;
        uint256 returnSize;
        uint256 returnValue;
        assembly {
            success := staticcall(30000, account, add(encodedParams, 0x20), mload(encodedParams), 0x00, 0x20)
            returnSize := returndatasize()
            returnValue := mload(0x00)
        }

        return success && returnSize >= 0x20 && returnValue > 0;
    }
}

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

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC165 standard, as defined in the
 * https://eips.ethereum.org/EIPS/eip-165[EIP].
 *
 * Implementers can declare support of contract interfaces, which can then be
 * queried by others ({ERC165Checker}).
 *
 * For an implementation, see {ERC165}.
 */
interface IERC165 {
    /**
     * @dev Returns true if this contract implements the interface defined by
     * `interfaceId`. See the corresponding
     * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]
     * to learn more about how these ids are created.
     *
     * This function call must use less than 30 000 gas.
     */
    function supportsInterface(bytes4 interfaceId) external view returns (bool);
}

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

pragma solidity ^0.8.0;

/**
 * @dev Library for managing
 * https://en.wikipedia.org/wiki/Set_(abstract_data_type)[sets] of primitive
 * types.
 *
 * Sets have the following properties:
 *
 * - Elements are added, removed, and checked for existence in constant time
 * (O(1)).
 * - Elements are enumerated in O(n). No guarantees are made on the ordering.
 *
 * ```
 * contract Example {
 *     // Add the library methods
 *     using EnumerableSet for EnumerableSet.AddressSet;
 *
 *     // Declare a set state variable
 *     EnumerableSet.AddressSet private mySet;
 * }
 * ```
 *
 * As of v3.3.0, sets of type `bytes32` (`Bytes32Set`), `address` (`AddressSet`)
 * and `uint256` (`UintSet`) are supported.
 *
 * [WARNING]
 * ====
 *  Trying to delete such a structure from storage will likely result in data corruption, rendering the structure unusable.
 *  See https://github.com/ethereum/solidity/pull/11843[ethereum/solidity#11843] for more info.
 *
 *  In order to clean an EnumerableSet, you can either remove all elements one by one or create a fresh instance using an array of EnumerableSet.
 * ====
 */
library EnumerableSet {
    // To implement this library for multiple types with as little code
    // repetition as possible, we write it in terms of a generic Set type with
    // bytes32 values.
    // The Set implementation uses private functions, and user-facing
    // implementations (such as AddressSet) are just wrappers around the
    // underlying Set.
    // This means that we can only create new EnumerableSets for types that fit
    // in bytes32.

    struct Set {
        // Storage of set values
        bytes32[] _values;
        // Position of the value in the `values` array, plus 1 because index 0
        // means a value is not in the set.
        mapping(bytes32 => uint256) _indexes;
    }

    /**
     * @dev Add a value to a set. O(1).
     *
     * Returns true if the value was added to the set, that is if it was not
     * already present.
     */
    function _add(Set storage set, bytes32 value) private returns (bool) {
        if (!_contains(set, value)) {
            set._values.push(value);
            // The value is stored at length-1, but we add 1 to all indexes
            // and use 0 as a sentinel value
            set._indexes[value] = set._values.length;
            return true;
        } else {
            return false;
        }
    }

    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the value was removed from the set, that is if it was
     * present.
     */
    function _remove(Set storage set, bytes32 value) private returns (bool) {
        // We read and store the value's index to prevent multiple reads from the same storage slot
        uint256 valueIndex = set._indexes[value];

        if (valueIndex != 0) {
            // Equivalent to contains(set, value)
            // To delete an element from the _values array in O(1), we swap the element to delete with the last one in
            // the array, and then remove the last element (sometimes called as 'swap and pop').
            // This modifies the order of the array, as noted in {at}.

            uint256 toDeleteIndex = valueIndex - 1;
            uint256 lastIndex = set._values.length - 1;

            if (lastIndex != toDeleteIndex) {
                bytes32 lastValue = set._values[lastIndex];

                // Move the last value to the index where the value to delete is
                set._values[toDeleteIndex] = lastValue;
                // Update the index for the moved value
                set._indexes[lastValue] = valueIndex; // Replace lastValue's index to valueIndex
            }

            // Delete the slot where the moved value was stored
            set._values.pop();

            // Delete the index for the deleted slot
            delete set._indexes[value];

            return true;
        } else {
            return false;
        }
    }

    /**
     * @dev Returns true if the value is in the set. O(1).
     */
    function _contains(Set storage set, bytes32 value) private view returns (bool) {
        return set._indexes[value] != 0;
    }

    /**
     * @dev Returns the number of values on the set. O(1).
     */
    function _length(Set storage set) private view returns (uint256) {
        return set._values.length;
    }

    /**
     * @dev Returns the value stored at position `index` in the set. O(1).
     *
     * Note that there are no guarantees on the ordering of values inside the
     * array, and it may change when more values are added or removed.
     *
     * Requirements:
     *
     * - `index` must be strictly less than {length}.
     */
    function _at(Set storage set, uint256 index) private view returns (bytes32) {
        return set._values[index];
    }

    /**
     * @dev Return the entire set in an array
     *
     * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
     * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
     * this function has an unbounded cost, and using it as part of a state-changing function may render the function
     * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
     */
    function _values(Set storage set) private view returns (bytes32[] memory) {
        return set._values;
    }

    // Bytes32Set

    struct Bytes32Set {
        Set _inner;
    }

    /**
     * @dev Add a value to a set. O(1).
     *
     * Returns true if the value was added to the set, that is if it was not
     * already present.
     */
    function add(Bytes32Set storage set, bytes32 value) internal returns (bool) {
        return _add(set._inner, value);
    }

    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the value was removed from the set, that is if it was
     * present.
     */
    function remove(Bytes32Set storage set, bytes32 value) internal returns (bool) {
        return _remove(set._inner, value);
    }

    /**
     * @dev Returns true if the value is in the set. O(1).
     */
    function contains(Bytes32Set storage set, bytes32 value) internal view returns (bool) {
        return _contains(set._inner, value);
    }

    /**
     * @dev Returns the number of values in the set. O(1).
     */
    function length(Bytes32Set storage set) internal view returns (uint256) {
        return _length(set._inner);
    }

    /**
     * @dev Returns the value stored at position `index` in the set. O(1).
     *
     * Note that there are no guarantees on the ordering of values inside the
     * array, and it may change when more values are added or removed.
     *
     * Requirements:
     *
     * - `index` must be strictly less than {length}.
     */
    function at(Bytes32Set storage set, uint256 index) internal view returns (bytes32) {
        return _at(set._inner, index);
    }

    /**
     * @dev Return the entire set in an array
     *
     * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
     * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
     * this function has an unbounded cost, and using it as part of a state-changing function may render the function
     * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
     */
    function values(Bytes32Set storage set) internal view returns (bytes32[] memory) {
        return _values(set._inner);
    }

    // AddressSet

    struct AddressSet {
        Set _inner;
    }

    /**
     * @dev Add a value to a set. O(1).
     *
     * Returns true if the value was added to the set, that is if it was not
     * already present.
     */
    function add(AddressSet storage set, address value) internal returns (bool) {
        return _add(set._inner, bytes32(uint256(uint160(value))));
    }

    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the value was removed from the set, that is if it was
     * present.
     */
    function remove(AddressSet storage set, address value) internal returns (bool) {
        return _remove(set._inner, bytes32(uint256(uint160(value))));
    }

    /**
     * @dev Returns true if the value is in the set. O(1).
     */
    function contains(AddressSet storage set, address value) internal view returns (bool) {
        return _contains(set._inner, bytes32(uint256(uint160(value))));
    }

    /**
     * @dev Returns the number of values in the set. O(1).
     */
    function length(AddressSet storage set) internal view returns (uint256) {
        return _length(set._inner);
    }

    /**
     * @dev Returns the value stored at position `index` in the set. O(1).
     *
     * Note that there are no guarantees on the ordering of values inside the
     * array, and it may change when more values are added or removed.
     *
     * Requirements:
     *
     * - `index` must be strictly less than {length}.
     */
    function at(AddressSet storage set, uint256 index) internal view returns (address) {
        return address(uint160(uint256(_at(set._inner, index))));
    }

    /**
     * @dev Return the entire set in an array
     *
     * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
     * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
     * this function has an unbounded cost, and using it as part of a state-changing function may render the function
     * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
     */
    function values(AddressSet storage set) internal view returns (address[] memory) {
        bytes32[] memory store = _values(set._inner);
        address[] memory result;

        /// @solidity memory-safe-assembly
        assembly {
            result := store
        }

        return result;
    }

    // UintSet

    struct UintSet {
        Set _inner;
    }

    /**
     * @dev Add a value to a set. O(1).
     *
     * Returns true if the value was added to the set, that is if it was not
     * already present.
     */
    function add(UintSet storage set, uint256 value) internal returns (bool) {
        return _add(set._inner, bytes32(value));
    }

    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the value was removed from the set, that is if it was
     * present.
     */
    function remove(UintSet storage set, uint256 value) internal returns (bool) {
        return _remove(set._inner, bytes32(value));
    }

    /**
     * @dev Returns true if the value is in the set. O(1).
     */
    function contains(UintSet storage set, uint256 value) internal view returns (bool) {
        return _contains(set._inner, bytes32(value));
    }

    /**
     * @dev Returns the number of values on the set. O(1).
     */
    function length(UintSet storage set) internal view returns (uint256) {
        return _length(set._inner);
    }

    /**
     * @dev Returns the value stored at position `index` in the set. O(1).
     *
     * Note that there are no guarantees on the ordering of values inside the
     * array, and it may change when more values are added or removed.
     *
     * Requirements:
     *
     * - `index` must be strictly less than {length}.
     */
    function at(UintSet storage set, uint256 index) internal view returns (uint256) {
        return uint256(_at(set._inner, index));
    }

    /**
     * @dev Return the entire set in an array
     *
     * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
     * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
     * this function has an unbounded cost, and using it as part of a state-changing function may render the function
     * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
     */
    function values(UintSet storage set) internal view returns (uint256[] memory) {
        bytes32[] memory store = _values(set._inner);
        uint256[] memory result;

        /// @solidity memory-safe-assembly
        assembly {
            result := store
        }

        return result;
    }
}

// SPDX-License-Identifier: Apache-2.0
pragma solidity ^0.8.0;

import { ERC721A } from "../eip/ERC721AVirtualApprove.sol";

import "../extension/ContractMetadata.sol";
import "../extension/Multicall.sol";
import "../extension/Ownable.sol";
import "../extension/Royalty.sol";
import "../extension/BatchMintMetadata.sol";
import "../extension/PrimarySale.sol";
import "../extension/DropSinglePhase.sol";
import "../extension/LazyMint.sol";
import "../extension/DelayedReveal.sol";
import "../extension/DefaultOperatorFilterer.sol";

import "../lib/TWStrings.sol";
import "../lib/CurrencyTransferLib.sol";

/**
 *      BASE:      ERC721A
 *      EXTENSION: DropSinglePhase
 *
 *  The `ERC721Drop` contract implements the ERC721 NFT standard, along with the ERC721A optimization to the standard.
 *  It includes the following additions to standard ERC721 logic:
 *
 *      - Contract metadata for royalty support on platforms such as OpenSea that use
 *        off-chain information to distribute roaylties.
 *
 *      - Ownership of the contract, with the ability to restrict certain functions to
 *        only be called by the contract's owner.
 *
 *      - Multicall capability to perform multiple actions atomically
 *
 *      - EIP 2981 compliance for royalty support on NFT marketplaces.
 *
 *  The `drop` mechanism in the `DropSinglePhase` extension is a distribution mechanism for lazy minted tokens. It lets
 *  you set restrictions such as a price to charge, an allowlist etc. when an address atttempts to mint lazy minted tokens.
 *
 *  The `ERC721Drop` contract lets you lazy mint tokens, and distribute those lazy minted tokens via the drop mechanism.
 */

contract ERC721Drop is
    ERC721A,
    ContractMetadata,
    Multicall,
    Ownable,
    Royalty,
    BatchMintMetadata,
    PrimarySale,
    LazyMint,
    DelayedReveal,
    DefaultOperatorFilterer,
    DropSinglePhase
{
    using TWStrings for uint256;

    /*///////////////////////////////////////////////////////////////
                            Constructor
    //////////////////////////////////////////////////////////////*/

    constructor(
        string memory _name,
        string memory _symbol,
        address _royaltyRecipient,
        uint128 _royaltyBps,
        address _primarySaleRecipient
    ) ERC721A(_name, _symbol) {
        _setupOwner(msg.sender);
        _setupDefaultRoyaltyInfo(_royaltyRecipient, _royaltyBps);
        _setupPrimarySaleRecipient(_primarySaleRecipient);
        _setOperatorRestriction(true);
    }

    /*//////////////////////////////////////////////////////////////
                            ERC165 Logic
    //////////////////////////////////////////////////////////////*/

    /// @dev See ERC165: https://eips.ethereum.org/EIPS/eip-165
    function supportsInterface(bytes4 interfaceId) public view virtual override(ERC721A, IERC165) returns (bool) {
        return
            interfaceId == 0x01ffc9a7 || // ERC165 Interface ID for ERC165
            interfaceId == 0x80ac58cd || // ERC165 Interface ID for ERC721
            interfaceId == 0x5b5e139f || // ERC165 Interface ID for ERC721Metadata
            interfaceId == type(IERC2981).interfaceId; // ERC165 ID for ERC2981
    }

    /*///////////////////////////////////////////////////////////////
                    Overriden ERC 721 logic
    //////////////////////////////////////////////////////////////*/

    /**
     *  @notice         Returns the metadata URI for an NFT.
     *  @dev            See `BatchMintMetadata` for handling of metadata in this contract.
     *
     *  @param _tokenId The tokenId of an NFT.
     */
    function tokenURI(uint256 _tokenId) public view virtual override returns (string memory) {
        (uint256 batchId, ) = _getBatchId(_tokenId);
        string memory batchUri = _getBaseURI(_tokenId);

        if (isEncryptedBatch(batchId)) {
            return string(abi.encodePacked(batchUri, "0"));
        } else {
            return string(abi.encodePacked(batchUri, _tokenId.toString()));
        }
    }

    /*///////////////////////////////////////////////////////////////
                    Overriden lazy minting logic
    //////////////////////////////////////////////////////////////*/

    /**
     *  @notice                  Lets an authorized address lazy mint a given amount of NFTs.
     *
     *  @param _amount           The number of NFTs to lazy mint.
     *  @param _baseURIForTokens The placeholder base URI for the 'n' number of NFTs being lazy minted, where the
     *                           metadata for each of those NFTs is `${baseURIForTokens}/${tokenId}`.
     *  @param _data             The encrypted base URI + provenance hash for the batch of NFTs being lazy minted.
     *  @return batchId          A unique integer identifier for the batch of NFTs lazy minted together.
     */
    function lazyMint(
        uint256 _amount,
        string calldata _baseURIForTokens,
        bytes calldata _data
    ) public override returns (uint256 batchId) {
        if (_data.length > 0) {
            (bytes memory encryptedURI, bytes32 provenanceHash) = abi.decode(_data, (bytes, bytes32));
            if (encryptedURI.length != 0 && provenanceHash != "") {
                _setEncryptedData(nextTokenIdToLazyMint + _amount, _data);
            }
        }

        return LazyMint.lazyMint(_amount, _baseURIForTokens, _data);
    }

    /// @notice The tokenId assigned to the next new NFT to be lazy minted.
    function nextTokenIdToMint() public view virtual returns (uint256) {
        return nextTokenIdToLazyMint;
    }

    /// @notice The tokenId assigned to the next new NFT to be claimed.
    function nextTokenIdToClaim() public view virtual returns (uint256) {
        return _currentIndex;
    }

    /*///////////////////////////////////////////////////////////////
                        Delayed reveal logic
    //////////////////////////////////////////////////////////////*/

    /**
     *  @notice       Lets an authorized address reveal a batch of delayed reveal NFTs.
     *
     *  @param _index The ID for the batch of delayed-reveal NFTs to reveal.
     *  @param _key   The key with which the base URI for the relevant batch of NFTs was encrypted.
     */
    function reveal(uint256 _index, bytes calldata _key) public virtual override returns (string memory revealedURI) {
        require(_canReveal(), "Not authorized");

        uint256 batchId = getBatchIdAtIndex(_index);
        revealedURI = getRevealURI(batchId, _key);

        _setEncryptedData(batchId, "");
        _setBaseURI(batchId, revealedURI);

        emit TokenURIRevealed(_index, revealedURI);
    }

    /*//////////////////////////////////////////////////////////////
                        Minting/burning logic
    //////////////////////////////////////////////////////////////*/

    /**
     *  @notice         Lets an owner or approved operator burn the NFT of the given tokenId.
     *  @dev            ERC721A's `_burn(uint256,bool)` internally checks for token approvals.
     *
     *  @param _tokenId The tokenId of the NFT to burn.
     */
    function burn(uint256 _tokenId) external virtual {
        _burn(_tokenId, true);
    }

    /*//////////////////////////////////////////////////////////////
                        ERC-721 overrides
    //////////////////////////////////////////////////////////////*/

    /// @dev See {ERC721-setApprovalForAll}.
    function setApprovalForAll(address operator, bool approved)
        public
        override(ERC721A)
        onlyAllowedOperatorApproval(operator)
    {
        super.setApprovalForAll(operator, approved);
    }

    /// @dev See {ERC721-approve}.
    function approve(address operator, uint256 tokenId) public override(ERC721A) onlyAllowedOperatorApproval(operator) {
        super.approve(operator, tokenId);
    }

    /// @dev See {ERC721-_transferFrom}.
    function transferFrom(
        address from,
        address to,
        uint256 tokenId
    ) public override(ERC721A) onlyAllowedOperator(from) {
        super.transferFrom(from, to, tokenId);
    }

    /// @dev See {ERC721-_safeTransferFrom}.
    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId
    ) public override(ERC721A) onlyAllowedOperator(from) {
        super.safeTransferFrom(from, to, tokenId);
    }

    /// @dev See {ERC721-_safeTransferFrom}.
    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId,
        bytes memory data
    ) public override(ERC721A) onlyAllowedOperator(from) {
        super.safeTransferFrom(from, to, tokenId, data);
    }

    /*///////////////////////////////////////////////////////////////
                        Internal functions
    //////////////////////////////////////////////////////////////*/

    /// @dev Runs before every `claim` function call.
    function _beforeClaim(
        address,
        uint256 _quantity,
        address,
        uint256,
        AllowlistProof calldata,
        bytes memory
    ) internal view virtual override {
        if (_currentIndex + _quantity > nextTokenIdToLazyMint) {
            revert("Not enough minted tokens");
        }
    }

    /// @dev Collects and distributes the primary sale value of NFTs being claimed.
    function _collectPriceOnClaim(
        address _primarySaleRecipient,
        uint256 _quantityToClaim,
        address _currency,
        uint256 _pricePerToken
    ) internal virtual override {
        if (_pricePerToken == 0) {
            return;
        }

        uint256 totalPrice = _quantityToClaim * _pricePerToken;

        if (_currency == CurrencyTransferLib.NATIVE_TOKEN) {
            if (msg.value != totalPrice) {
                revert("Must send total price");
            }
        }

        address saleRecipient = _primarySaleRecipient == address(0) ? primarySaleRecipient() : _primarySaleRecipient;
        CurrencyTransferLib.transferCurrency(_currency, msg.sender, saleRecipient, totalPrice);
    }

    /// @dev Transfers the NFTs being claimed.
    function _transferTokensOnClaim(address _to, uint256 _quantityBeingClaimed)
        internal
        virtual
        override
        returns (uint256 startTokenId)
    {
        startTokenId = _currentIndex;
        _safeMint(_to, _quantityBeingClaimed);
    }

    /// @dev Checks whether primary sale recipient can be set in the given execution context.
    function _canSetPrimarySaleRecipient() internal view virtual override returns (bool) {
        return msg.sender == owner();
    }

    /// @dev Checks whether owner can be set in the given execution context.
    function _canSetOwner() internal view virtual override returns (bool) {
        return msg.sender == owner();
    }

    /// @dev Checks whether royalty info can be set in the given execution context.
    function _canSetRoyaltyInfo() internal view virtual override returns (bool) {
        return msg.sender == owner();
    }

    /// @dev Checks whether contract metadata can be set in the given execution context.
    function _canSetContractURI() internal view virtual override returns (bool) {
        return msg.sender == owner();
    }

    /// @dev Checks whether platform fee info can be set in the given execution context.
    function _canSetClaimConditions() internal view virtual override returns (bool) {
        return msg.sender == owner();
    }

    /// @dev Returns whether lazy minting can be done in the given execution context.
    function _canLazyMint() internal view virtual override returns (bool) {
        return msg.sender == owner();
    }

    /// @dev Checks whether NFTs can be revealed in the given execution context.
    function _canReveal() internal view virtual returns (bool) {
        return msg.sender == owner();
    }

    /// @dev Returns whether operator restriction can be set in the given execution context.
    function _canSetOperatorRestriction() internal virtual override returns (bool) {
        return msg.sender == owner();
    }

    /*///////////////////////////////////////////////////////////////
                        Miscellaneous
    //////////////////////////////////////////////////////////////*/

    function _dropMsgSender() internal view virtual override returns (address) {
        return msg.sender;
    }
}

// SPDX-License-Identifier: Apache-2.0
pragma solidity ^0.8.0;

import { ERC721A } from "../eip/ERC721AVirtualApprove.sol";

import "../extension/ContractMetadata.sol";
import "../extension/Multicall.sol";
import "../extension/Ownable.sol";
import "../extension/Royalty.sol";
import "../extension/BatchMintMetadata.sol";
import "../extension/LazyMint.sol";
import "../extension/interface/IClaimableERC721.sol";
import "../extension/DefaultOperatorFilterer.sol";

import "../lib/TWStrings.sol";
import "../openzeppelin-presets/security/ReentrancyGuard.sol";

/**
 *      BASE:      ERC721A
 *      EXTENSION: LazyMint
 *
 *  The `ERC721LazyMint` smart contract implements the ERC721 NFT standard, along with the ERC721A optimization to the standard.
 *  It includes the following additions to standard ERC721 logic:
 *
 *      - Lazy minting
 *
 *      - Contract metadata for royalty support on platforms such as OpenSea that use
 *        off-chain information to distribute roaylties.
 *
 *      - Ownership of the contract, with the ability to restrict certain functions to
 *        only be called by the contract's owner.
 *
 *      - Multicall capability to perform multiple actions atomically
 *
 *      - EIP 2981 compliance for royalty support on NFT marketplaces.
 *
 *  'Lazy minting' means defining the metadata of NFTs without minting it to an address. Regular 'minting'
 *  of  NFTs means actually assigning an owner to an NFT.
 *
 *  As a contract admin, this lets you prepare the metadata for NFTs that will be minted by an external party,
 *  without paying the gas cost for actually minting the NFTs.
 */

contract ERC721LazyMint is
    ERC721A,
    ContractMetadata,
    Multicall,
    Ownable,
    Royalty,
    BatchMintMetadata,
    LazyMint,
    IClaimableERC721,
    DefaultOperatorFilterer,
    ReentrancyGuard
{
    using TWStrings for uint256;

    /*//////////////////////////////////////////////////////////////
                            Constructor
    //////////////////////////////////////////////////////////////*/

    constructor(
        string memory _name,
        string memory _symbol,
        address _royaltyRecipient,
        uint128 _royaltyBps
    ) ERC721A(_name, _symbol) {
        _setupOwner(msg.sender);
        _setupDefaultRoyaltyInfo(_royaltyRecipient, _royaltyBps);
        _setOperatorRestriction(true);
    }

    /*//////////////////////////////////////////////////////////////
                            ERC165 Logic
    //////////////////////////////////////////////////////////////*/

    /// @dev See ERC165: https://eips.ethereum.org/EIPS/eip-165
    function supportsInterface(bytes4 interfaceId) public view virtual override(ERC721A, IERC165) returns (bool) {
        return
            interfaceId == 0x01ffc9a7 || // ERC165 Interface ID for ERC165
            interfaceId == 0x80ac58cd || // ERC165 Interface ID for ERC721
            interfaceId == 0x5b5e139f || // ERC165 Interface ID for ERC721Metadata
            interfaceId == type(IERC2981).interfaceId; // ERC165 ID for ERC2981
    }

    /*//////////////////////////////////////////////////////////////
                        Overriden ERC721 logic
    //////////////////////////////////////////////////////////////*/

    /**
     *  @notice         Returns the metadata URI for an NFT.
     *  @dev            See `BatchMintMetadata` for handling of metadata in this contract.
     *
     *  @param _tokenId The tokenId of an NFT.
     */
    function tokenURI(uint256 _tokenId) public view virtual override returns (string memory) {
        string memory batchUri = _getBaseURI(_tokenId);
        return string(abi.encodePacked(batchUri, _tokenId.toString()));
    }

    /*//////////////////////////////////////////////////////////////
                            Claiming logic
    //////////////////////////////////////////////////////////////*/

    /**
     *  @notice          Lets an address claim multiple lazy minted NFTs at once to a recipient.
     *                   This function prevents any reentrant calls, and is not allowed to be overridden.
     *
     *                   Contract creators should override `verifyClaim` and `transferTokensOnClaim`
     *                   functions to create custom logic for verification and claiming,
     *                   for e.g. price collection, allowlist, max quantity, etc.
     *
     *  @dev             The logic in `verifyClaim` determines whether the caller is authorized to mint NFTs.
     *                   The logic in `transferTokensOnClaim` does actual minting of tokens,
     *                   can also be used to apply other state changes.
     *
     *  @param _receiver  The recipient of the NFT to mint.
     *  @param _quantity  The number of NFTs to mint.
     */
    function claim(address _receiver, uint256 _quantity) public payable nonReentrant {
        require(_currentIndex + _quantity <= nextTokenIdToLazyMint, "Not enough lazy minted tokens.");
        verifyClaim(msg.sender, _quantity); // Add your claim verification logic by overriding this function.

        uint256 startTokenId = _transferTokensOnClaim(_receiver, _quantity); // Mints tokens. Apply any state updates by overriding this function.
        emit TokensClaimed(msg.sender, _receiver, startTokenId, _quantity);
    }

    /**
     *  @notice          Override this function to add logic for claim verification, based on conditions
     *                   such as allowlist, price, max quantity etc.
     *
     *  @dev             Checks a request to claim NFTs against a custom condition.
     *
     *  @param _claimer   Caller of the claim function.
     *  @param _quantity  The number of NFTs being claimed.
     */
    function verifyClaim(address _claimer, uint256 _quantity) public view virtual {}

    /**
     *  @notice         Lets an owner or approved operator burn the NFT of the given tokenId.
     *  @dev            ERC721A's `_burn(uint256,bool)` internally checks for token approvals.
     *
     *  @param _tokenId The tokenId of the NFT to burn.
     */
    function burn(uint256 _tokenId) external virtual {
        _burn(_tokenId, true);
    }

    /// @notice The tokenId assigned to the next new NFT to be lazy minted.
    function nextTokenIdToMint() public view virtual returns (uint256) {
        return nextTokenIdToLazyMint;
    }

    /// @notice The tokenId assigned to the next new NFT to be claimed.
    function nextTokenIdToClaim() public view virtual returns (uint256) {
        return _currentIndex;
    }

    /*//////////////////////////////////////////////////////////////
                        ERC-721 overrides
    //////////////////////////////////////////////////////////////*/

    /// @dev See {ERC721-setApprovalForAll}.
    function setApprovalForAll(address operator, bool approved)
        public
        override(ERC721A)
        onlyAllowedOperatorApproval(operator)
    {
        super.setApprovalForAll(operator, approved);
    }

    /// @dev See {ERC721-approve}.
    function approve(address operator, uint256 tokenId) public override(ERC721A) onlyAllowedOperatorApproval(operator) {
        super.approve(operator, tokenId);
    }

    /// @dev See {ERC721-_transferFrom}.
    function transferFrom(
        address from,
        address to,
        uint256 tokenId
    ) public override(ERC721A) onlyAllowedOperator(from) {
        super.transferFrom(from, to, tokenId);
    }

    /// @dev See {ERC721-_safeTransferFrom}.
    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId
    ) public override(ERC721A) onlyAllowedOperator(from) {
        super.safeTransferFrom(from, to, tokenId);
    }

    /// @dev See {ERC721-_safeTransferFrom}.
    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId,
        bytes memory data
    ) public override(ERC721A) onlyAllowedOperator(from) {
        super.safeTransferFrom(from, to, tokenId, data);
    }

    /*//////////////////////////////////////////////////////////////
                        Internal functions
    //////////////////////////////////////////////////////////////*/

    /**
     *  @notice          Mints tokens to receiver on claim.
     *                   Any state changes related to `claim` must be applied
     *                   here by overriding this function.
     *
     *  @dev             Override this function to add logic for state updation.
     *                   When overriding, apply any state changes before `_safeMint`.
     */
    function _transferTokensOnClaim(address _receiver, uint256 _quantity)
        internal
        virtual
        returns (uint256 startTokenId)
    {
        startTokenId = _currentIndex;
        _safeMint(_receiver, _quantity);
    }

    /// @dev Returns whether lazy minting can be done in the given execution context.
    function _canLazyMint() internal view virtual override returns (bool) {
        return msg.sender == owner();
    }

    /// @dev Returns whether contract metadata can be set in the given execution context.
    function _canSetContractURI() internal view virtual override returns (bool) {
        return msg.sender == owner();
    }

    /// @dev Returns whether owner can be set in the given execution context.
    function _canSetOwner() internal view virtual override returns (bool) {
        return msg.sender == owner();
    }

    /// @dev Returns whether royalty info can be set in the given execution context.
    function _canSetRoyaltyInfo() internal view virtual override returns (bool) {
        return msg.sender == owner();
    }

    /// @dev Returns whether operator restriction can be set in the given execution context.
    function _canSetOperatorRestriction() internal virtual override returns (bool) {
        return msg.sender == owner();
    }
}

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

pragma solidity ^0.8.0;

import "./interface/IERC165.sol";

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

// SPDX-License-Identifier: MIT
// ERC721A Contracts v3.3.0
// Creator: Chiru Labs

pragma solidity ^0.8.4;

////////// CHANGELOG: turn `approve` to virtual //////////

import "./interface/IERC721A.sol";
import "./interface/IERC721Receiver.sol";
import "../lib/TWAddress.sol";
import "../openzeppelin-presets/utils/Context.sol";
import "../lib/TWStrings.sol";
import "./ERC165.sol";

/**
 * @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including
 * the Metadata extension. Built to optimize for lower gas during batch mints.
 *
 * Assumes serials are sequentially minted starting at _startTokenId() (defaults to 0, e.g. 0, 1, 2, 3..).
 *
 * Assumes that an owner cannot have more than 2**64 - 1 (max value of uint64) of supply.
 *
 * Assumes that the maximum token id cannot exceed 2**256 - 1 (max value of uint256).
 */
contract ERC721A is Context, ERC165, IERC721A {
    using TWAddress for address;
    using TWStrings for uint256;

    // The tokenId of the next token to be minted.
    uint256 internal _currentIndex;

    // The number of tokens burned.
    uint256 internal _burnCounter;

    // Token name
    string private _name;

    // Token symbol
    string private _symbol;

    // Mapping from token ID to ownership details
    // An empty struct value does not necessarily mean the token is unowned. See _ownershipOf implementation for details.
    mapping(uint256 => TokenOwnership) internal _ownerships;

    // Mapping owner address to address data
    mapping(address => AddressData) private _addressData;

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

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

    constructor(string memory name_, string memory symbol_) {
        _name = name_;
        _symbol = symbol_;
        _currentIndex = _startTokenId();
    }

    /**
     * To change the starting tokenId, please override this function.
     */
    function _startTokenId() internal view virtual returns (uint256) {
        return 0;
    }

    /**
     * @dev Burned tokens are calculated here, use _totalMinted() if you want to count just minted tokens.
     */
    function totalSupply() public view override returns (uint256) {
        // Counter underflow is impossible as _burnCounter cannot be incremented
        // more than _currentIndex - _startTokenId() times
        unchecked {
            return _currentIndex - _burnCounter - _startTokenId();
        }
    }

    /**
     * Returns the total amount of tokens minted in the contract.
     */
    function _totalMinted() internal view returns (uint256) {
        // Counter underflow is impossible as _currentIndex does not decrement,
        // and it is initialized to _startTokenId()
        unchecked {
            return _currentIndex - _startTokenId();
        }
    }

    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165) returns (bool) {
        return
            interfaceId == type(IERC721).interfaceId ||
            interfaceId == type(IERC721Metadata).interfaceId ||
            super.supportsInterface(interfaceId);
    }

    /**
     * @dev See {IERC721-balanceOf}.
     */
    function balanceOf(address owner) public view override returns (uint256) {
        if (owner == address(0)) revert BalanceQueryForZeroAddress();
        return uint256(_addressData[owner].balance);
    }

    /**
     * Returns the number of tokens minted by `owner`.
     */
    function _numberMinted(address owner) internal view returns (uint256) {
        return uint256(_addressData[owner].numberMinted);
    }

    /**
     * Returns the number of tokens burned by or on behalf of `owner`.
     */
    function _numberBurned(address owner) internal view returns (uint256) {
        return uint256(_addressData[owner].numberBurned);
    }

    /**
     * Returns the auxillary data for `owner`. (e.g. number of whitelist mint slots used).
     */
    function _getAux(address owner) internal view returns (uint64) {
        return _addressData[owner].aux;
    }

    /**
     * Sets the auxillary data for `owner`. (e.g. number of whitelist mint slots used).
     * If there are multiple variables, please pack them into a uint64.
     */
    function _setAux(address owner, uint64 aux) internal {
        _addressData[owner].aux = aux;
    }

    /**
     * Gas spent here starts off proportional to the maximum mint batch size.
     * It gradually moves to O(1) as tokens get transferred around in the collection over time.
     */
    function _ownershipOf(uint256 tokenId) internal view returns (TokenOwnership memory) {
        uint256 curr = tokenId;

        unchecked {
            if (_startTokenId() <= curr)
                if (curr < _currentIndex) {
                    TokenOwnership memory ownership = _ownerships[curr];
                    if (!ownership.burned) {
                        if (ownership.addr != address(0)) {
                            return ownership;
                        }
                        // Invariant:
                        // There will always be an ownership that has an address and is not burned
                        // before an ownership that does not have an address and is not burned.
                        // Hence, curr will not underflow.
                        while (true) {
                            curr--;
                            ownership = _ownerships[curr];
                            if (ownership.addr != address(0)) {
                                return ownership;
                            }
                        }
                    }
                }
        }
        revert OwnerQueryForNonexistentToken();
    }

    /**
     * @dev See {IERC721-ownerOf}.
     */
    function ownerOf(uint256 tokenId) public view override returns (address) {
        return _ownershipOf(tokenId).addr;
    }

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

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

    /**
     * @dev See {IERC721Metadata-tokenURI}.
     */
    function tokenURI(uint256 tokenId) public view virtual override returns (string memory) {
        if (!_exists(tokenId)) revert URIQueryForNonexistentToken();

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

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

    /**
     * @dev See {IERC721-approve}.
     */
    function approve(address to, uint256 tokenId) public virtual override {
        address owner = ERC721A.ownerOf(tokenId);
        if (to == owner) revert ApprovalToCurrentOwner();

        if (_msgSender() != owner)
            if (!isApprovedForAll(owner, _msgSender())) {
                revert ApprovalCallerNotOwnerNorApproved();
            }

        _approve(to, tokenId, owner);
    }

    /**
     * @dev See {IERC721-getApproved}.
     */
    function getApproved(uint256 tokenId) public view override returns (address) {
        if (!_exists(tokenId)) revert ApprovalQueryForNonexistentToken();

        return _tokenApprovals[tokenId];
    }

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

        _operatorApprovals[_msgSender()][operator] = approved;
        emit ApprovalForAll(_msgSender(), operator, approved);
    }

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

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

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

    /**
     * @dev See {IERC721-safeTransferFrom}.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId,
        bytes memory _data
    ) public virtual override {
        _transfer(from, to, tokenId);
        if (to.isContract())
            if (!_checkContractOnERC721Received(from, to, tokenId, _data)) {
                revert TransferToNonERC721ReceiverImplementer();
            }
    }

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

    /**
     * @dev Equivalent to `_safeMint(to, quantity, '')`.
     */
    function _safeMint(address to, uint256 quantity) internal {
        _safeMint(to, quantity, "");
    }

    /**
     * @dev Safely mints `quantity` tokens and transfers them to `to`.
     *
     * Requirements:
     *
     * - If `to` refers to a smart contract, it must implement
     *   {IERC721Receiver-onERC721Received}, which is called for each safe transfer.
     * - `quantity` must be greater than 0.
     *
     * Emits a {Transfer} event.
     */
    function _safeMint(
        address to,
        uint256 quantity,
        bytes memory _data
    ) internal {
        uint256 startTokenId = _currentIndex;
        if (to == address(0)) revert MintToZeroAddress();
        if (quantity == 0) revert MintZeroQuantity();

        _beforeTokenTransfers(address(0), to, startTokenId, quantity);

        // Overflows are incredibly unrealistic.
        // balance or numberMinted overflow if current value of either + quantity > 1.8e19 (2**64) - 1
        // updatedIndex overflows if _currentIndex + quantity > 1.2e77 (2**256) - 1
        unchecked {
            _addressData[to].balance += uint64(quantity);
            _addressData[to].numberMinted += uint64(quantity);

            _ownerships[startTokenId].addr = to;
            _ownerships[startTokenId].startTimestamp = uint64(block.timestamp);

            uint256 updatedIndex = startTokenId;
            uint256 end = updatedIndex + quantity;

            if (to.isContract()) {
                do {
                    emit Transfer(address(0), to, updatedIndex);
                    if (!_checkContractOnERC721Received(address(0), to, updatedIndex++, _data)) {
                        revert TransferToNonERC721ReceiverImplementer();
                    }
                } while (updatedIndex < end);
                // Reentrancy protection
                if (_currentIndex != startTokenId) revert();
            } else {
                do {
                    emit Transfer(address(0), to, updatedIndex++);
                } while (updatedIndex < end);
            }
            _currentIndex = updatedIndex;
        }
        _afterTokenTransfers(address(0), to, startTokenId, quantity);
    }

    /**
     * @dev Mints `quantity` tokens and transfers them to `to`.
     *
     * Requirements:
     *
     * - `to` cannot be the zero address.
     * - `quantity` must be greater than 0.
     *
     * Emits a {Transfer} event.
     */
    function _mint(address to, uint256 quantity) internal {
        uint256 startTokenId = _currentIndex;
        if (to == address(0)) revert MintToZeroAddress();
        if (quantity == 0) revert MintZeroQuantity();

        _beforeTokenTransfers(address(0), to, startTokenId, quantity);

        // Overflows are incredibly unrealistic.
        // balance or numberMinted overflow if current value of either + quantity > 1.8e19 (2**64) - 1
        // updatedIndex overflows if _currentIndex + quantity > 1.2e77 (2**256) - 1
        unchecked {
            _addressData[to].balance += uint64(quantity);
            _addressData[to].numberMinted += uint64(quantity);

            _ownerships[startTokenId].addr = to;
            _ownerships[startTokenId].startTimestamp = uint64(block.timestamp);

            uint256 updatedIndex = startTokenId;
            uint256 end = updatedIndex + quantity;

            do {
                emit Transfer(address(0), to, updatedIndex++);
            } while (updatedIndex < end);

            _currentIndex = updatedIndex;
        }
        _afterTokenTransfers(address(0), to, startTokenId, quantity);
    }

    /**
     * @dev Transfers `tokenId` from `from` to `to`.
     *
     * Requirements:
     *
     * - `to` cannot be the zero address.
     * - `tokenId` token must be owned by `from`.
     *
     * Emits a {Transfer} event.
     */
    function _transfer(
        address from,
        address to,
        uint256 tokenId
    ) private {
        TokenOwnership memory prevOwnership = _ownershipOf(tokenId);

        if (prevOwnership.addr != from) revert TransferFromIncorrectOwner();

        bool isApprovedOrOwner = (_msgSender() == from ||
            isApprovedForAll(from, _msgSender()) ||
            getApproved(tokenId) == _msgSender());

        if (!isApprovedOrOwner) revert TransferCallerNotOwnerNorApproved();
        if (to == address(0)) revert TransferToZeroAddress();

        _beforeTokenTransfers(from, to, tokenId, 1);

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

        // Underflow of the sender's balance is impossible because we check for
        // ownership above and the recipient's balance can't realistically overflow.
        // Counter overflow is incredibly unrealistic as tokenId would have to be 2**256.
        unchecked {
            _addressData[from].balance -= 1;
            _addressData[to].balance += 1;

            TokenOwnership storage currSlot = _ownerships[tokenId];
            currSlot.addr = to;
            currSlot.startTimestamp = uint64(block.timestamp);

            // If the ownership slot of tokenId+1 is not explicitly set, that means the transfer initiator owns it.
            // Set the slot of tokenId+1 explicitly in storage to maintain correctness for ownerOf(tokenId+1) calls.
            uint256 nextTokenId = tokenId + 1;
            TokenOwnership storage nextSlot = _ownerships[nextTokenId];
            if (nextSlot.addr == address(0)) {
                // This will suffice for checking _exists(nextTokenId),
                // as a burned slot cannot contain the zero address.
                if (nextTokenId != _currentIndex) {
                    nextSlot.addr = from;
                    nextSlot.startTimestamp = prevOwnership.startTimestamp;
                }
            }
        }

        emit Transfer(from, to, tokenId);
        _afterTokenTransfers(from, to, tokenId, 1);
    }

    /**
     * @dev Equivalent to `_burn(tokenId, false)`.
     */
    function _burn(uint256 tokenId) internal virtual {
        _burn(tokenId, false);
    }

    /**
     * @dev Destroys `tokenId`.
     * The approval is cleared when the token is burned.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     *
     * Emits a {Transfer} event.
     */
    function _burn(uint256 tokenId, bool approvalCheck) internal virtual {
        TokenOwnership memory prevOwnership = _ownershipOf(tokenId);

        address from = prevOwnership.addr;

        if (approvalCheck) {
            bool isApprovedOrOwner = (_msgSender() == from ||
                isApprovedForAll(from, _msgSender()) ||
                getApproved(tokenId) == _msgSender());

            if (!isApprovedOrOwner) revert TransferCallerNotOwnerNorApproved();
        }

        _beforeTokenTransfers(from, address(0), tokenId, 1);

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

        // Underflow of the sender's balance is impossible because we check for
        // ownership above and the recipient's balance can't realistically overflow.
        // Counter overflow is incredibly unrealistic as tokenId would have to be 2**256.
        unchecked {
            AddressData storage addressData = _addressData[from];
            addressData.balance -= 1;
            addressData.numberBurned += 1;

            // Keep track of who burned the token, and the timestamp of burning.
            TokenOwnership storage currSlot = _ownerships[tokenId];
            currSlot.addr = from;
            currSlot.startTimestamp = uint64(block.timestamp);
            currSlot.burned = true;

            // If the ownership slot of tokenId+1 is not explicitly set, that means the burn initiator owns it.
            // Set the slot of tokenId+1 explicitly in storage to maintain correctness for ownerOf(tokenId+1) calls.
            uint256 nextTokenId = tokenId + 1;
            TokenOwnership storage nextSlot = _ownerships[nextTokenId];
            if (nextSlot.addr == address(0)) {
                // This will suffice for checking _exists(nextTokenId),
                // as a burned slot cannot contain the zero address.
                if (nextTokenId != _currentIndex) {
                    nextSlot.addr = from;
                    nextSlot.startTimestamp = prevOwnership.startTimestamp;
                }
            }
        }

        emit Transfer(from, address(0), tokenId);
        _afterTokenTransfers(from, address(0), tokenId, 1);

        // Overflow not possible, as _burnCounter cannot be exceed _currentIndex times.
        unchecked {
            _burnCounter++;
        }
    }

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

    /**
     * @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target contract.
     *
     * @param from address representing the previous owner of the given token ID
     * @param to target address that will receive the tokens
     * @param tokenId uint256 ID of the token to be transferred
     * @param _data bytes optional data to send along with the call
     * @return bool whether the call correctly returned the expected magic value
     */
    function _checkContractOnERC721Received(
        address from,
        address to,
        uint256 tokenId,
        bytes memory _data
    ) private returns (bool) {
        try IERC721Receiver(to).onERC721Received(_msgSender(), from, tokenId, _data) returns (bytes4 retval) {
            return retval == IERC721Receiver(to).onERC721Received.selector;
        } catch (bytes memory reason) {
            if (reason.length == 0) {
                revert TransferToNonERC721ReceiverImplementer();
            } else {
                assembly {
                    revert(add(32, reason), mload(reason))
                }
            }
        }
    }

    /**
     * @dev Hook that is called before a set of serially-ordered token ids are about to be transferred. This includes minting.
     * And also called before burning one token.
     *
     * startTokenId - the first token id to be transferred
     * quantity - the amount to be transferred
     *
     * Calling conditions:
     *
     * - When `from` and `to` are both non-zero, `from`'s `tokenId` will be
     * transferred to `to`.
     * - When `from` is zero, `tokenId` will be minted for `to`.
     * - When `to` is zero, `tokenId` will be burned by `from`.
     * - `from` and `to` are never both zero.
     */
    function _beforeTokenTransfers(
        address from,
        address to,
        uint256 startTokenId,
        uint256 quantity
    ) internal virtual {}

    /**
     * @dev Hook that is called after a set of serially-ordered token ids have been transferred. This includes
     * minting.
     * And also called after one token has been burned.
     *
     * startTokenId - the first token id to be transferred
     * quantity - the amount to be transferred
     *
     * Calling conditions:
     *
     * - When `from` and `to` are both non-zero, `from`'s `tokenId` has been
     * transferred to `to`.
     * - When `from` is zero, `tokenId` has been minted for `to`.
     * - When `to` is zero, `tokenId` has been burned by `from`.
     * - `from` and `to` are never both zero.
     */
    function _afterTokenTransfers(
        address from,
        address to,
        uint256 startTokenId,
        uint256 quantity
    ) internal virtual {}
}

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

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC165 standard, as defined in the
 * [EIP](https://eips.ethereum.org/EIPS/eip-165).
 *
 * Implementers can declare support of contract interfaces, which can then be
 * queried by others ({ERC165Checker}).
 *
 * For an implementation, see {ERC165}.
 */
interface IERC165 {
    /**
     * @dev Returns true if this contract implements the interface defined by
     * `interfaceId`. See the corresponding
     * [EIP section](https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified)
     * to learn more about how these ids are created.
     *
     * This function call must use less than 30 000 gas.
     */
    function supportsInterface(bytes4 interfaceId) external view returns (bool);
}

// SPDX-License-Identifier: Apache-2.0
pragma solidity ^0.8.0;

/**
 * @title ERC20 interface
 * @dev see https://github.com/ethereum/EIPs/issues/20
 */
interface IERC20 {
    function totalSupply() external view returns (uint256);

    function balanceOf(address who) external view returns (uint256);

    function allowance(address owner, address spender) external view returns (uint256);

    function transfer(address to, uint256 value) external returns (bool);

    function approve(address spender, uint256 value) external returns (bool);

    function transferFrom(
        address from,
        address to,
        uint256 value
    ) external returns (bool);

    event Transfer(address indexed from, address indexed to, uint256 value);

    event Approval(address indexed owner, address indexed spender, uint256 value);
}

// SPDX-License-Identifier: Apache 2.0
pragma solidity ^0.8.0;

import "./IERC165.sol";

/**
 * @dev Interface for the NFT Royalty Standard.
 *
 * A standardized way to retrieve royalty payment information for non-fungible tokens (NFTs) to enable universal
 * support for royalty payments across all NFT marketplaces and ecosystem participants.
 *
 * _Available since v4.5._
 */
interface IERC2981 is IERC165 {
    /**
     * @dev Returns how much royalty is owed and to whom, based on a sale price that may be denominated in any unit of
     * exchange. The royalty amount is denominated and should be payed in that same unit of exchange.
     */
    function royaltyInfo(uint256 tokenId, uint256 salePrice)
        external
        view
        returns (address receiver, uint256 royaltyAmount);
}

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

pragma solidity ^0.8.0;

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

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

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

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

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

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

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

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

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

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

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

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

// SPDX-License-Identifier: MIT
// ERC721A Contracts v3.3.0
// Creator: Chiru Labs

pragma solidity ^0.8.4;

import "./IERC721.sol";
import "./IERC721Metadata.sol";

/**
 * @dev Interface of an ERC721A compliant contract.
 */
interface IERC721A is IERC721, IERC721Metadata {
    /**
     * The caller must own the token or be an approved operator.
     */
    error ApprovalCallerNotOwnerNorApproved();

    /**
     * The token does not exist.
     */
    error ApprovalQueryForNonexistentToken();

    /**
     * The caller cannot approve to their own address.
     */
    error ApproveToCaller();

    /**
     * The caller cannot approve to the current owner.
     */
    error ApprovalToCurrentOwner();

    /**
     * Cannot query the balance for the zero address.
     */
    error BalanceQueryForZeroAddress();

    /**
     * Cannot mint to the zero address.
     */
    error MintToZeroAddress();

    /**
     * The quantity of tokens minted must be more than zero.
     */
    error MintZeroQuantity();

    /**
     * The token does not exist.
     */
    error OwnerQueryForNonexistentToken();

    /**
     * The caller must own the token or be an approved operator.
     */
    error TransferCallerNotOwnerNorApproved();

    /**
     * The token must be owned by `from`.
     */
    error TransferFromIncorrectOwner();

    /**
     * Cannot safely transfer to a contract that does not implement the ERC721Receiver interface.
     */
    error TransferToNonERC721ReceiverImplementer();

    /**
     * Cannot transfer to the zero address.
     */
    error TransferToZeroAddress();

    /**
     * The token does not exist.
     */
    error URIQueryForNonexistentToken();

    // Compiler will pack this into a single 256bit word.
    struct TokenOwnership {
        // The address of the owner.
        address addr;
        // Keeps track of the start time of ownership with minimal overhead for tokenomics.
        uint64 startTimestamp;
        // Whether the token has been burned.
        bool burned;
    }

    // Compiler will pack this into a single 256bit word.
    struct AddressData {
        // Realistically, 2**64-1 is more than enough.
        uint64 balance;
        // Keeps track of mint count with minimal overhead for tokenomics.
        uint64 numberMinted;
        // Keeps track of burn count with minimal overhead for tokenomics.
        uint64 numberBurned;
        // For miscellaneous variable(s) pertaining to the address
        // (e.g. number of whitelist mint slots used).
        // If there are multiple variables, please pack them into a uint64.
        uint64 aux;
    }

    /**
     * @dev Returns the total amount of tokens stored by the contract.
     *
     * Burned tokens are calculated here, use `_totalMinted()` if you want to count just minted tokens.
     */
    function totalSupply() external view returns (uint256);
}

// SPDX-License-Identifier: Apache-2.0
pragma solidity ^0.8.0;

/// @title ERC-721 Non-Fungible Token Standard, optional metadata extension
/// @dev See https://eips.ethereum.org/EIPS/eip-721
///  Note: the ERC-165 identifier for this interface is 0x5b5e139f.
/* is ERC721 */
interface IERC721Metadata {
    /// @notice A descriptive name for a collection of NFTs in this contract
    function name() external view returns (string memory);

    /// @notice An abbreviated name for NFTs in this contract
    function symbol() external view returns (string memory);

    /// @notice A distinct Uniform Resource Identifier (URI) for a given asset.
    /// @dev Throws if `_tokenId` is not a valid NFT. URIs are defined in RFC
    ///  3986. The URI may point to a JSON file that conforms to the "ERC721
    ///  Metadata JSON Schema".
    function tokenURI(uint256 _tokenId) external view returns (string memory);
}

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

pragma solidity ^0.8.0;

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

// SPDX-License-Identifier: Apache-2.0
pragma solidity ^0.8.0;

/**
 *  @title   Batch-mint Metadata
 *  @notice  The `BatchMintMetadata` is a contract extension for any base NFT contract. It lets the smart contract
 *           using this extension set metadata for `n` number of NFTs all at once. This is enabled by storing a single
 *           base URI for a batch of `n` NFTs, where the metadata for each NFT in a relevant batch is `baseURI/tokenId`.
 */

contract BatchMintMetadata {
    /// @dev Largest tokenId of each batch of tokens with the same baseURI.
    uint256[] private batchIds;

    /// @dev Mapping from id of a batch of tokens => to base URI for the respective batch of tokens.
    mapping(uint256 => string) private baseURI;

    /**
     *  @notice         Returns the count of batches of NFTs.
     *  @dev            Each batch of tokens has an in ID and an associated `baseURI`.
     *                  See {batchIds}.
     */
    function getBaseURICount() public view returns (uint256) {
        return batchIds.length;
    }

    /**
     *  @notice         Returns the ID for the batch of tokens the given tokenId belongs to.
     *  @dev            See {getBaseURICount}.
     *  @param _index   ID of a token.
     */
    function getBatchIdAtIndex(uint256 _index) public view returns (uint256) {
        if (_index >= getBaseURICount()) {
            revert("Invalid index");
        }
        return batchIds[_index];
    }

    /// @dev Returns the id for the batch of tokens the given tokenId belongs to.
    function _getBatchId(uint256 _tokenId) internal view returns (uint256 batchId, uint256 index) {
        uint256 numOfTokenBatches = getBaseURICount();
        uint256[] memory indices = batchIds;

        for (uint256 i = 0; i < numOfTokenBatches; i += 1) {
            if (_tokenId < indices[i]) {
                index = i;
                batchId = indices[i];

                return (batchId, index);
            }
        }

        revert("Invalid tokenId");
    }

    /// @dev Returns the baseURI for a token. The intended metadata URI for the token is baseURI + tokenId.
    function _getBaseURI(uint256 _tokenId) internal view returns (string memory) {
        uint256 numOfTokenBatches = getBaseURICount();
        uint256[] memory indices = batchIds;

        for (uint256 i = 0; i < numOfTokenBatches; i += 1) {
            if (_tokenId < indices[i]) {
                return baseURI[indices[i]];
            }
        }
        revert("Invalid tokenId");
    }

    /// @dev Sets the base URI for the batch of tokens with the given batchId.
    function _setBaseURI(uint256 _batchId, string memory _baseURI) internal {
        baseURI[_batchId] = _baseURI;
    }

    /// @dev Mints a batch of tokenIds and associates a common baseURI to all those Ids.
    function _batchMintMetadata(
        uint256 _startId,
        uint256 _amountToMint,
        string memory _baseURIForTokens
    ) internal returns (uint256 nextTokenIdToMint, uint256 batchId) {
        batchId = _startId + _amountToMint;
        nextTokenIdToMint = batchId;

        batchIds.push(batchId);

        baseURI[batchId] = _baseURIForTokens;
    }
}

// SPDX-License-Identifier: Apache-2.0
pragma solidity ^0.8.0;

import "./interface/IContractMetadata.sol";

/**
 *  @title   Contract Metadata
 *  @notice  Thirdweb's `ContractMetadata` is a contract extension for any base contracts. It lets you set a metadata URI
 *           for you contract.
 *           Additionally, `ContractMetadata` is necessary for NFT contracts that want royalties to get distributed on OpenSea.
 */

abstract contract ContractMetadata is IContractMetadata {
    /// @notice Returns the contract metadata URI.
    string public override contractURI;

    /**
     *  @notice         Lets a contract admin set the URI for contract-level metadata.
     *  @dev            Caller should be authorized to setup contractURI, e.g. contract admin.
     *                  See {_canSetContractURI}.
     *                  Emits {ContractURIUpdated Event}.
     *
     *  @param _uri     keccak256 hash of the role. e.g. keccak256("TRANSFER_ROLE")
     */
    function setContractURI(string memory _uri) external override {
        if (!_canSetContractURI()) {
            revert("Not authorized");
        }

        _setupContractURI(_uri);
    }

    /// @dev Lets a contract admin set the URI for contract-level metadata.
    function _setupContractURI(string memory _uri) internal {
        string memory prevURI = contractURI;
        contractURI = _uri;

        emit ContractURIUpdated(prevURI, _uri);
    }

    /// @dev Returns whether contract metadata can be set in the given execution context.
    function _canSetContractURI() internal view virtual returns (bool);
}

// SPDX-License-Identifier: Apache 2.0
pragma solidity ^0.8.0;

import { OperatorFilterer } from "./OperatorFilterer.sol";

/**
 * @title  DefaultOperatorFilterer
 * @notice Inherits from OperatorFilterer and automatically subscribes to the default OpenSea subscription.
 */
abstract contract DefaultOperatorFilterer is OperatorFilterer {
    address constant DEFAULT_SUBSCRIPTION = address(0x3cc6CddA760b79bAfa08dF41ECFA224f810dCeB6);

    constructor() OperatorFilterer(DEFAULT_SUBSCRIPTION, true) {}
}

// SPDX-License-Identifier: Apache-2.0
pragma solidity ^0.8.0;

import "./interface/IDelayedReveal.sol";

/**
 *  @title   Delayed Reveal
 *  @notice  Thirdweb's `DelayedReveal` is a contract extension for base NFT contracts. It lets you create batches of
 *           'delayed-reveal' NFTs. You can learn more about the usage of delayed reveal NFTs here - https://blog.thirdweb.com/delayed-reveal-nfts
 */

abstract contract DelayedReveal is IDelayedReveal {
    /// @dev Mapping from tokenId of a batch of tokens => to delayed reveal data.
    mapping(uint256 => bytes) public encryptedData;

    /// @dev Sets the delayed reveal data for a batchId.
    function _setEncryptedData(uint256 _batchId, bytes memory _encryptedData) internal {
        encryptedData[_batchId] = _encryptedData;
    }

    /**
     *  @notice             Returns revealed URI for a batch of NFTs.
     *  @dev                Reveal encrypted base URI for `_batchId` with caller/admin's `_key` used for encryption.
     *                      Reverts if there's no encrypted URI for `_batchId`.
     *                      See {encryptDecrypt}.
     *
     *  @param _batchId     ID of the batch for which URI is being revealed.
     *  @param _key         Secure key used by caller/admin for encryption of baseURI.
     *
     *  @return revealedURI Decrypted base URI.
     */
    function getRevealURI(uint256 _batchId, bytes calldata _key) public view returns (string memory revealedURI) {
        bytes memory data = encryptedData[_batchId];
        if (data.length == 0) {
            revert("Nothing to reveal");
        }

        (bytes memory encryptedURI, bytes32 provenanceHash) = abi.decode(data, (bytes, bytes32));

        revealedURI = string(encryptDecrypt(encryptedURI, _key));

        require(keccak256(abi.encodePacked(revealedURI, _key, block.chainid)) == provenanceHash, "Incorrect key");
    }

    /**
     *  @notice         Encrypt/decrypt data on chain.
     *  @dev            Encrypt/decrypt given `data` with `key`. Uses inline assembly.
     *                  See: https://ethereum.stackexchange.com/questions/69825/decrypt-message-on-chain
     *
     *  @param data     Bytes of data to encrypt/decrypt.
     *  @param key      Secure key used by caller for encryption/decryption.
     *
     *  @return result  Output after encryption/decryption of given data.
     */
    function encryptDecrypt(bytes memory data, bytes calldata key) public pure override returns (bytes memory result) {
        // Store data length on stack for later use
        uint256 length = data.length;

        // solhint-disable-next-line no-inline-assembly
        assembly {
            // Set result to free memory pointer
            result := mload(0x40)
            // Increase free memory pointer by lenght + 32
            mstore(0x40, add(add(result, length), 32))
            // Set result length
            mstore(result, length)
        }

        // Iterate over the data stepping by 32 bytes
        for (uint256 i = 0; i < length; i += 32) {
            // Generate hash of the key and offset
            bytes32 hash = keccak256(abi.encodePacked(key, i));

            bytes32 chunk;
            // solhint-disable-next-line no-inline-assembly
            assembly {
                // Read 32-bytes data chunk
                chunk := mload(add(data, add(i, 32)))
            }
            // XOR the chunk with hash
            chunk ^= hash;
            // solhint-disable-next-line no-inline-assembly
            assembly {
                // Write 32-byte encrypted chunk
                mstore(add(result, add(i, 32)), chunk)
            }
        }
    }

    /**
     *  @notice         Returns whether the relvant batch of NFTs is subject to a delayed reveal.
     *  @dev            Returns `true` if `_batchId`'s base URI is encrypted.
     *  @param _batchId ID of a batch of NFTs.
     */
    function isEncryptedBatch(uint256 _batchId) public view returns (bool) {
        return encryptedData[_batchId].length > 0;
    }
}

// SPDX-License-Identifier: Apache-2.0
pragma solidity ^0.8.0;

import "./interface/IDropSinglePhase.sol";
import "../lib/MerkleProof.sol";

abstract contract DropSinglePhase is IDropSinglePhase {
    /*///////////////////////////////////////////////////////////////
                            State variables
    //////////////////////////////////////////////////////////////*/

    /// @dev The active conditions for claiming tokens.
    ClaimCondition public claimCondition;

    /// @dev The ID for the active claim condition.
    bytes32 private conditionId;

    /*///////////////////////////////////////////////////////////////
                                Mappings
    //////////////////////////////////////////////////////////////*/

    /**
     *  @dev Map from a claim condition uid and account to supply claimed by account.
     */
    mapping(bytes32 => mapping(address => uint256)) private supplyClaimedByWallet;

    /*///////////////////////////////////////////////////////////////
                            Drop logic
    //////////////////////////////////////////////////////////////*/

    /// @dev Lets an account claim tokens.
    function claim(
        address _receiver,
        uint256 _quantity,
        address _currency,
        uint256 _pricePerToken,
        AllowlistProof calldata _allowlistProof,
        bytes memory _data
    ) public payable virtual override {
        _beforeClaim(_receiver, _quantity, _currency, _pricePerToken, _allowlistProof, _data);

        bytes32 activeConditionId = conditionId;

        verifyClaim(_dropMsgSender(), _quantity, _currency, _pricePerToken, _allowlistProof);

        // Update contract state.
        claimCondition.supplyClaimed += _quantity;
        supplyClaimedByWallet[activeConditionId][_dropMsgSender()] += _quantity;

        // If there's a price, collect price.
        _collectPriceOnClaim(address(0), _quantity, _currency, _pricePerToken);

        // Mint the relevant NFTs to claimer.
        uint256 startTokenId = _transferTokensOnClaim(_receiver, _quantity);

        emit TokensClaimed(_dropMsgSender(), _receiver, startTokenId, _quantity);

        _afterClaim(_receiver, _quantity, _currency, _pricePerToken, _allowlistProof, _data);
    }

    /// @dev Lets a contract admin set claim conditions.
    function setClaimConditions(ClaimCondition calldata _condition, bool _resetClaimEligibility) external override {
        if (!_canSetClaimConditions()) {
            revert("Not authorized");
        }

        bytes32 targetConditionId = conditionId;
        uint256 supplyClaimedAlready = claimCondition.supplyClaimed;

        if (_resetClaimEligibility) {
            supplyClaimedAlready = 0;
            targetConditionId = keccak256(abi.encodePacked(_dropMsgSender(), block.number));
        }

        if (supplyClaimedAlready > _condition.maxClaimableSupply) {
            revert("max supply claimed");
        }

        claimCondition = ClaimCondition({
            startTimestamp: _condition.startTimestamp,
            maxClaimableSupply: _condition.maxClaimableSupply,
            supplyClaimed: supplyClaimedAlready,
            quantityLimitPerWallet: _condition.quantityLimitPerWallet,
            merkleRoot: _condition.merkleRoot,
            pricePerToken: _condition.pricePerToken,
            currency: _condition.currency,
            metadata: _condition.metadata
        });
        conditionId = targetConditionId;

        emit ClaimConditionUpdated(_condition, _resetClaimEligibility);
    }

    /// @dev Checks a request to claim NFTs against the active claim condition's criteria.
    function verifyClaim(
        address _claimer,
        uint256 _quantity,
        address _currency,
        uint256 _pricePerToken,
        AllowlistProof calldata _allowlistProof
    ) public view returns (bool isOverride) {
        ClaimCondition memory currentClaimPhase = claimCondition;
        uint256 claimLimit = currentClaimPhase.quantityLimitPerWallet;
        uint256 claimPrice = currentClaimPhase.pricePerToken;
        address claimCurrency = currentClaimPhase.currency;

        if (currentClaimPhase.merkleRoot != bytes32(0)) {
            (isOverride, ) = MerkleProof.verify(
                _allowlistProof.proof,
                currentClaimPhase.merkleRoot,
                keccak256(
                    abi.encodePacked(
                        _claimer,
                        _allowlistProof.quantityLimitPerWallet,
                        _allowlistProof.pricePerToken,
                        _allowlistProof.currency
                    )
                )
            );
        }

        if (isOverride) {
            claimLimit = _allowlistProof.quantityLimitPerWallet != 0
                ? _allowlistProof.quantityLimitPerWallet
                : claimLimit;
            claimPrice = _allowlistProof.pricePerToken != type(uint256).max
                ? _allowlistProof.pricePerToken
                : claimPrice;
            claimCurrency = _allowlistProof.pricePerToken != type(uint256).max && _allowlistProof.currency != address(0)
                ? _allowlistProof.currency
                : claimCurrency;
        }

        uint256 _supplyClaimedByWallet = supplyClaimedByWallet[conditionId][_claimer];

        if (_currency != claimCurrency || _pricePerToken != claimPrice) {
            revert("!PriceOrCurrency");
        }

        if (_quantity == 0 || (_quantity + _supplyClaimedByWallet > claimLimit)) {
            revert("!Qty");
        }

        if (currentClaimPhase.supplyClaimed + _quantity > currentClaimPhase.maxClaimableSupply) {
            revert("!MaxSupply");
        }

        if (currentClaimPhase.startTimestamp > block.timestamp) {
            revert("cant claim yet");
        }
    }

    /// @dev Returns the supply claimed by claimer for active conditionId.
    function getSupplyClaimedByWallet(address _claimer) public view returns (uint256) {
        return supplyClaimedByWallet[conditionId][_claimer];
    }

    /*////////////////////////////////////////////////////////////////////
        Optional hooks that can be implemented in the derived contract
    ///////////////////////////////////////////////////////////////////*/

    /// @dev Exposes the ability to override the msg sender.
    function _dropMsgSender() internal virtual returns (address) {
        return msg.sender;
    }

    /// @dev Runs before every `claim` function call.
    function _beforeClaim(
        address _receiver,
        uint256 _quantity,
        address _currency,
        uint256 _pricePerToken,
        AllowlistProof calldata _allowlistProof,
        bytes memory _data
    ) internal virtual {}

    /// @dev Runs after every `claim` function call.
    function _afterClaim(
        address _receiver,
        uint256 _quantity,
        address _currency,
        uint256 _pricePerToken,
        AllowlistProof calldata _allowlistProof,
        bytes memory _data
    ) internal virtual {}

    /// @dev Collects and distributes the primary sale value of NFTs being claimed.
    function _collectPriceOnClaim(
        address _primarySaleRecipient,
        uint256 _quantityToClaim,
        address _currency,
        uint256 _pricePerToken
    ) internal virtual;

    /// @dev Transfers the NFTs being claimed.
    function _transferTokensOnClaim(address _to, uint256 _quantityBeingClaimed)
        internal
        virtual
        returns (uint256 startTokenId);

    function _canSetClaimConditions() internal view virtual returns (bool);
}

// SPDX-License-Identifier: Apache-2.0
pragma solidity ^0.8.0;

import "./interface/ILazyMint.sol";
import "./BatchMintMetadata.sol";

/**
 *  The `LazyMint` is a contract extension for any base NFT contract. It lets you 'lazy mint' any number of NFTs
 *  at once. Here, 'lazy mint' means defining the metadata for particular tokenIds of your NFT contract, without actually
 *  minting a non-zero balance of NFTs of those tokenIds.
 */

abstract contract LazyMint is ILazyMint, BatchMintMetadata {
    /// @notice The tokenId assigned to the next new NFT to be lazy minted.
    uint256 internal nextTokenIdToLazyMint;

    /**
     *  @notice                  Lets an authorized address lazy mint a given amount of NFTs.
     *
     *  @param _amount           The number of NFTs to lazy mint.
     *  @param _baseURIForTokens The base URI for the 'n' number of NFTs being lazy minted, where the metadata for each
     *                           of those NFTs is `${baseURIForTokens}/${tokenId}`.
     *  @param _data             Additional bytes data to be used at the discretion of the consumer of the contract.
     *  @return batchId          A unique integer identifier for the batch of NFTs lazy minted together.
     */
    function lazyMint(
        uint256 _amount,
        string calldata _baseURIForTokens,
        bytes calldata _data
    ) public virtual override returns (uint256 batchId) {
        if (!_canLazyMint()) {
            revert("Not authorized");
        }

        if (_amount == 0) {
            revert("0 amt");
        }

        uint256 startId = nextTokenIdToLazyMint;

        (nextTokenIdToLazyMint, batchId) = _batchMintMetadata(startId, _amount, _baseURIForTokens);

        emit TokensLazyMinted(startId, startId + _amount - 1, _baseURIForTokens, _data);

        return batchId;
    }

    /// @dev Returns whether lazy minting can be performed in the given execution context.
    function _canLazyMint() internal view virtual returns (bool);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (utils/Multicall.sol)

pragma solidity ^0.8.0;

import "../lib/TWAddress.sol";
import "./interface/IMulticall.sol";

/**
 * @dev Provides a function to batch together multiple calls in a single external call.
 *
 * _Available since v4.1._
 */
contract Multicall is IMulticall {
    /**
     *  @notice Receives and executes a batch of function calls on this contract.
     *  @dev Receives and executes a batch of function calls on this contract.
     *
     *  @param data The bytes data that makes up the batch of function calls to execute.
     *  @return results The bytes data that makes up the result of the batch of function calls executed.
     */
    function multicall(bytes[] calldata data) external virtual override returns (bytes[] memory results) {
        results = new bytes[](data.length);
        for (uint256 i = 0; i < data.length; i++) {
            results[i] = TWAddress.functionDelegateCall(address(this), data[i]);
        }
        return results;
    }
}

// SPDX-License-Identifier: Apache 2.0
pragma solidity ^0.8.0;

import "./interface/IOperatorFilterToggle.sol";

abstract contract OperatorFilterToggle is IOperatorFilterToggle {
    bool public operatorRestriction;

    function setOperatorRestriction(bool _restriction) external {
        require(_canSetOperatorRestriction(), "Not authorized to set operator restriction.");
        _setOperatorRestriction(_restriction);
    }

    function _setOperatorRestriction(bool _restriction) internal {
        operatorRestriction = _restriction;
        emit OperatorRestriction(_restriction);
    }

    function _canSetOperatorRestriction() internal virtual returns (bool);
}

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

import "./interface/IOperatorFilterRegistry.sol";
import "./OperatorFilterToggle.sol";

/**
 * @title  OperatorFilterer
 * @notice Abstract contract whose constructor automatically registers and optionally subscribes to or copies another
 *         registrant's entries in the OperatorFilterRegistry.
 * @dev    This smart contract is meant to be inherited by token contracts so they can use the following:
 *         - `onlyAllowedOperator` modifier for `transferFrom` and `safeTransferFrom` methods.
 *         - `onlyAllowedOperatorApproval` modifier for `approve` and `setApprovalForAll` methods.
 */

abstract contract OperatorFilterer is OperatorFilterToggle {
    error OperatorNotAllowed(address operator);

    IOperatorFilterRegistry public constant OPERATOR_FILTER_REGISTRY =
        IOperatorFilterRegistry(0x000000000000AAeB6D7670E522A718067333cd4E);

    constructor(address subscriptionOrRegistrantToCopy, bool subscribe) {
        // If an inheriting token contract is deployed to a network without the registry deployed, the modifier
        // will not revert, but the contract will need to be registered with the registry once it is deployed in
        // order for the modifier to filter addresses.
        if (address(OPERATOR_FILTER_REGISTRY).code.length > 0) {
            if (subscribe) {
                OPERATOR_FILTER_REGISTRY.registerAndSubscribe(address(this), subscriptionOrRegistrantToCopy);
            } else {
                if (subscriptionOrRegistrantToCopy != address(0)) {
                    OPERATOR_FILTER_REGISTRY.registerAndCopyEntries(address(this), subscriptionOrRegistrantToCopy);
                } else {
                    OPERATOR_FILTER_REGISTRY.register(address(this));
                }
            }
        }
    }

    modifier onlyAllowedOperator(address from) virtual {
        // Allow spending tokens from addresses with balance
        // Note that this still allows listings and marketplaces with escrow to transfer tokens if transferred
        // from an EOA.
        if (from != msg.sender) {
            _checkFilterOperator(msg.sender);
        }
        _;
    }

    modifier onlyAllowedOperatorApproval(address operator) virtual {
        _checkFilterOperator(operator);
        _;
    }

    function _checkFilterOperator(address operator) internal view virtual {
        // Check registry code length to facilitate testing in environments without a deployed registry.
        if (operatorRestriction) {
            if (address(OPERATOR_FILTER_REGISTRY).code.length > 0) {
                if (!OPERATOR_FILTER_REGISTRY.isOperatorAllowed(address(this), operator)) {
                    revert OperatorNotAllowed(operator);
                }
            }
        }
    }
}

// SPDX-License-Identifier: Apache-2.0
pragma solidity ^0.8.0;

import "./interface/IOwnable.sol";

/**
 *  @title   Ownable
 *  @notice  Thirdweb's `Ownable` is a contract extension to be used with any base contract. It exposes functions for setting and reading
 *           who the 'owner' of the inheriting smart contract is, and lets the inheriting contract perform conditional logic that uses
 *           information about who the contract's owner is.
 */

abstract contract Ownable is IOwnable {
    /// @dev Owner of the contract (purpose: OpenSea compatibility)
    address private _owner;

    /// @dev Reverts if caller is not the owner.
    modifier onlyOwner() {
        if (msg.sender != _owner) {
            revert("Not authorized");
        }
        _;
    }

    /**
     *  @notice Returns the owner of the contract.
     */
    function owner() public view override returns (address) {
        return _owner;
    }

    /**
     *  @notice Lets an authorized wallet set a new owner for the contract.
     *  @param _newOwner The address to set as the new owner of the contract.
     */
    function setOwner(address _newOwner) external override {
        if (!_canSetOwner()) {
            revert("Not authorized");
        }
        _setupOwner(_newOwner);
    }

    /// @dev Lets a contract admin set a new owner for the contract. The new owner must be a contract admin.
    function _setupOwner(address _newOwner) internal {
        address _prevOwner = _owner;
        _owner = _newOwner;

        emit OwnerUpdated(_prevOwner, _newOwner);
    }

    /// @dev Returns whether owner can be set in the given execution context.
    function _canSetOwner() internal view virtual returns (bool);
}

// SPDX-License-Identifier: Apache-2.0
pragma solidity ^0.8.0;

import "./interface/IPrimarySale.sol";

/**
 *  @title   Primary Sale
 *  @notice  Thirdweb's `PrimarySale` is a contract extension to be used with any base contract. It exposes functions for setting and reading
 *           the recipient of primary sales, and lets the inheriting contract perform conditional logic that uses information about
 *           primary sales, if desired.
 */

abstract contract PrimarySale is IPrimarySale {
    /// @dev The address that receives all primary sales value.
    address private recipient;

    /// @dev Returns primary sale recipient address.
    function primarySaleRecipient() public view override returns (address) {
        return recipient;
    }

    /**
     *  @notice         Updates primary sale recipient.
     *  @dev            Caller should be authorized to set primary sales info.
     *                  See {_canSetPrimarySaleRecipient}.
     *                  Emits {PrimarySaleRecipientUpdated Event}; See {_setupPrimarySaleRecipient}.
     *
     *  @param _saleRecipient   Address to be set as new recipient of primary sales.
     */
    function setPrimarySaleRecipient(address _saleRecipient) external override {
        if (!_canSetPrimarySaleRecipient()) {
            revert("Not authorized");
        }
        _setupPrimarySaleRecipient(_saleRecipient);
    }

    /// @dev Lets a contract admin set the recipient for all primary sales.
    function _setupPrimarySaleRecipient(address _saleRecipient) internal {
        recipient = _saleRecipient;
        emit PrimarySaleRecipientUpdated(_saleRecipient);
    }

    /// @dev Returns whether primary sale recipient can be set in the given execution context.
    function _canSetPrimarySaleRecipient() internal view virtual returns (bool);
}

// SPDX-License-Identifier: Apache-2.0
pragma solidity ^0.8.0;

import "./interface/IRoyalty.sol";

/**
 *  @title   Royalty
 *  @notice  Thirdweb's `Royalty` is a contract extension to be used with any base contract. It exposes functions for setting and reading
 *           the recipient of royalty fee and the royalty fee basis points, and lets the inheriting contract perform conditional logic
 *           that uses information about royalty fees, if desired.
 *
 *  @dev     The `Royalty` contract is ERC2981 compliant.
 */

abstract contract Royalty is IRoyalty {
    /// @dev The (default) address that receives all royalty value.
    address private royaltyRecipient;

    /// @dev The (default) % of a sale to take as royalty (in basis points).
    uint16 private royaltyBps;

    /// @dev Token ID => royalty recipient and bps for token
    mapping(uint256 => RoyaltyInfo) private royaltyInfoForToken;

    /**
     *  @notice   View royalty info for a given token and sale price.
     *  @dev      Returns royalty amount and recipient for `tokenId` and `salePrice`.
     *  @param tokenId          The tokenID of the NFT for which to query royalty info.
     *  @param salePrice        Sale price of the token.
     *
     *  @return receiver        Address of royalty recipient account.
     *  @return royaltyAmount   Royalty amount calculated at current royaltyBps value.
     */
    function royaltyInfo(uint256 tokenId, uint256 salePrice)
        external
        view
        virtual
        override
        returns (address receiver, uint256 royaltyAmount)
    {
        (address recipient, uint256 bps) = getRoyaltyInfoForToken(tokenId);
        receiver = recipient;
        royaltyAmount = (salePrice * bps) / 10_000;
    }

    /**
     *  @notice          View royalty info for a given token.
     *  @dev             Returns royalty recipient and bps for `_tokenId`.
     *  @param _tokenId  The tokenID of the NFT for which to query royalty info.
     */
    function getRoyaltyInfoForToken(uint256 _tokenId) public view override returns (address, uint16) {
        RoyaltyInfo memory royaltyForToken = royaltyInfoForToken[_tokenId];

        return
            royaltyForToken.recipient == address(0)
                ? (royaltyRecipient, uint16(royaltyBps))
                : (royaltyForToken.recipient, uint16(royaltyForToken.bps));
    }

    /**
     *  @notice Returns the defualt royalty recipient and BPS for this contract's NFTs.
     */
    function getDefaultRoyaltyInfo() external view override returns (address, uint16) {
        return (royaltyRecipient, uint16(royaltyBps));
    }

    /**
     *  @notice         Updates default royalty recipient and bps.
     *  @dev            Caller should be authorized to set royalty info.
     *                  See {_canSetRoyaltyInfo}.
     *                  Emits {DefaultRoyalty Event}; See {_setupDefaultRoyaltyInfo}.
     *
     *  @param _royaltyRecipient   Address to be set as default royalty recipient.
     *  @param _royaltyBps         Updated royalty bps.
     */
    function setDefaultRoyaltyInfo(address _royaltyRecipient, uint256 _royaltyBps) external override {
        if (!_canSetRoyaltyInfo()) {
            revert("Not authorized");
        }

        _setupDefaultRoyaltyInfo(_royaltyRecipient, _royaltyBps);
    }

    /// @dev Lets a contract admin update the default royalty recipient and bps.
    function _setupDefaultRoyaltyInfo(address _royaltyRecipient, uint256 _royaltyBps) internal {
        if (_royaltyBps > 10_000) {
            revert("Exceeds max bps");
        }

        royaltyRecipient = _royaltyRecipient;
        royaltyBps = uint16(_royaltyBps);

        emit DefaultRoyalty(_royaltyRecipient, _royaltyBps);
    }

    /**
     *  @notice         Updates default royalty recipient and bps for a particular token.
     *  @dev            Sets royalty info for `_tokenId`. Caller should be authorized to set royalty info.
     *                  See {_canSetRoyaltyInfo}.
     *                  Emits {RoyaltyForToken Event}; See {_setupRoyaltyInfoForToken}.
     *
     *  @param _recipient   Address to be set as royalty recipient for given token Id.
     *  @param _bps         Updated royalty bps for the token Id.
     */
    function setRoyaltyInfoForToken(
        uint256 _tokenId,
        address _recipient,
        uint256 _bps
    ) external override {
        if (!_canSetRoyaltyInfo()) {
            revert("Not authorized");
        }

        _setupRoyaltyInfoForToken(_tokenId, _recipient, _bps);
    }

    /// @dev Lets a contract admin set the royalty recipient and bps for a particular token Id.
    function _setupRoyaltyInfoForToken(
        uint256 _tokenId,
        address _recipient,
        uint256 _bps
    ) internal {
        if (_bps > 10_000) {
            revert("Exceeds max bps");
        }

        royaltyInfoForToken[_tokenId] = RoyaltyInfo({ recipient: _recipient, bps: _bps });

        emit RoyaltyForToken(_tokenId, _recipient, _bps);
    }

    /// @dev Returns whether royalty info can be set in the given execution context.
    function _canSetRoyaltyInfo() internal view virtual returns (bool);
}

// SPDX-License-Identifier: Apache-2.0
pragma solidity ^0.8.0;

/**
 *  The interface `IClaimCondition` is written for thirdweb's 'Drop' contracts, which are distribution mechanisms for tokens.
 *
 *  A claim condition defines criteria under which accounts can mint tokens. Claim conditions can be overwritten
 *  or added to by the contract admin. At any moment, there is only one active claim condition.
 */

interface IClaimCondition {
    /**
     *  @notice The criteria that make up a claim condition.
     *
     *  @param startTimestamp                 The unix timestamp after which the claim condition applies.
     *                                        The same claim condition applies until the `startTimestamp`
     *                                        of the next claim condition.
     *
     *  @param maxClaimableSupply             The maximum total number of tokens that can be claimed under
     *                                        the claim condition.
     *
     *  @param supplyClaimed                  At any given point, the number of tokens that have been claimed
     *                                        under the claim condition.
     *
     *  @param quantityLimitPerWallet         The maximum number of tokens that can be claimed by a wallet.
     *
     *  @param merkleRoot                     The allowlist of addresses that can claim tokens under the claim
     *                                        condition.
     *
     *  @param pricePerToken                  The price required to pay per token claimed.
     *
     *  @param currency                       The currency in which the `pricePerToken` must be paid.
     *
     *  @param metadata                       Claim condition metadata.
     */
    struct ClaimCondition {
        uint256 startTimestamp;
        uint256 maxClaimableSupply;
        uint256 supplyClaimed;
        uint256 quantityLimitPerWallet;
        bytes32 merkleRoot;
        uint256 pricePerToken;
        address currency;
        string metadata;
    }
}

// SPDX-License-Identifier: Apache-2.0
pragma solidity ^0.8.0;

interface IClaimableERC721 {
    /// @dev Emitted when tokens are claimed
    event TokensClaimed(
        address indexed claimer,
        address indexed receiver,
        uint256 indexed startTokenId,
        uint256 quantityClaimed
    );

    /**
     *  @notice          Lets an address claim multiple lazy minted NFTs at once to a recipient.
     *                   Contract creators should override this function to create custom logic for claiming,
     *                   for e.g. price collection, allowlist, max quantity, etc.
     *
     *  @dev             The logic in the `verifyClaim` function determines whether the caller is authorized to mint NFTs.
     *
     *  @param _receiver  The recipient of the NFT to mint.
     *  @param _quantity  The number of NFTs to mint.
     */
    function claim(address _receiver, uint256 _quantity) external payable;

    /**
     *  @notice          Override this function to add logic for claim verification, based on conditions
     *                   such as allowlist, price, max quantity etc.
     *
     *  @dev             Checks a request to claim NFTs against a custom condition.
     *
     *  @param _claimer   Caller of the claim function.
     *  @param _quantity  The number of NFTs being claimed.
     */
    function verifyClaim(address _claimer, uint256 _quantity) external view;
}

// SPDX-License-Identifier: Apache-2.0
pragma solidity ^0.8.0;

/**
 *  Thirdweb's `ContractMetadata` is a contract extension for any base contracts. It lets you set a metadata URI
 *  for you contract.
 *
 *  Additionally, `ContractMetadata` is necessary for NFT contracts that want royalties to get distributed on OpenSea.
 */

interface IContractMetadata {
    /// @dev Returns the metadata URI of the contract.
    function contractURI() external view returns (string memory);

    /**
     *  @dev Sets contract URI for the storefront-level metadata of the contract.
     *       Only module admin can call this function.
     */
    function setContractURI(string calldata _uri) external;

    /// @dev Emitted when the contract URI is updated.
    event ContractURIUpdated(string prevURI, string newURI);
}

// SPDX-License-Identifier: Apache-2.0
pragma solidity ^0.8.0;

/**
 *  Thirdweb's `DelayedReveal` is a contract extension for base NFT contracts. It lets you create batches of
 *  'delayed-reveal' NFTs. You can learn more about the usage of delayed reveal NFTs here - https://blog.thirdweb.com/delayed-reveal-nfts
 */

interface IDelayedReveal {
    /// @dev Emitted when tokens are revealed.
    event TokenURIRevealed(uint256 indexed index, string revealedURI);

    /**
     *  @notice Reveals a batch of delayed reveal NFTs.
     *
     *  @param identifier The ID for the batch of delayed-reveal NFTs to reveal.
     *
     *  @param key        The key with which the base URI for the relevant batch of NFTs was encrypted.
     */
    function reveal(uint256 identifier, bytes calldata key) external returns (string memory revealedURI);

    /**
     *  @notice Performs XOR encryption/decryption.
     *
     *  @param data The data to encrypt. In the case of delayed-reveal NFTs, this is the "revealed" state
     *              base URI of the relevant batch of NFTs.
     *
     *  @param key  The key with which to encrypt data
     */
    function encryptDecrypt(bytes memory data, bytes calldata key) external pure returns (bytes memory result);
}

// SPDX-License-Identifier: Apache-2.0
pragma solidity ^0.8.0;

import "./IClaimCondition.sol";

/**
 *  The interface `IDropSinglePhase` is written for thirdweb's 'DropSinglePhase' contracts, which are distribution mechanisms for tokens.
 *
 *  An authorized wallet can set a claim condition for the distribution of the contract's tokens.
 *  A claim condition defines criteria under which accounts can mint tokens. Claim conditions can be overwritten
 *  or added to by the contract admin. At any moment, there is only one active claim condition.
 */

interface IDropSinglePhase is IClaimCondition {
    /**
     *  @param proof Prood of concerned wallet's inclusion in an allowlist.
     *  @param quantityLimitPerWallet The total quantity of tokens the allowlisted wallet is eligible to claim over time.
     *  @param pricePerToken The price per token the allowlisted wallet must pay to claim tokens.
     *  @param currency The currency in which the allowlisted wallet must pay the price for claiming tokens.
     */
    struct AllowlistProof {
        bytes32[] proof;
        uint256 quantityLimitPerWallet;
        uint256 pricePerToken;
        address currency;
    }

    /// @notice Emitted when tokens are claimed via `claim`.
    event TokensClaimed(
        address indexed claimer,
        address indexed receiver,
        uint256 indexed startTokenId,
        uint256 quantityClaimed
    );

    /// @notice Emitted when the contract's claim conditions are updated.
    event ClaimConditionUpdated(ClaimCondition condition, bool resetEligibility);

    /**
     *  @notice Lets an account claim a given quantity of NFTs.
     *
     *  @param receiver                       The receiver of the NFTs to claim.
     *  @param quantity                       The quantity of NFTs to claim.
     *  @param currency                       The currency in which to pay for the claim.
     *  @param pricePerToken                  The price per token to pay for the claim.
     *  @param allowlistProof                 The proof of the claimer's inclusion in the merkle root allowlist
     *                                        of the claim conditions that apply.
     *  @param data                           Arbitrary bytes data that can be leveraged in the implementation of this interface.
     */
    function claim(
        address receiver,
        uint256 quantity,
        address currency,
        uint256 pricePerToken,
        AllowlistProof calldata allowlistProof,
        bytes memory data
    ) external payable;

    /**
     *  @notice Lets a contract admin (account with `DEFAULT_ADMIN_ROLE`) set claim conditions.
     *
     *  @param phase                    Claim condition to set.
     *
     *  @param resetClaimEligibility    Whether to honor the restrictions applied to wallets who have claimed tokens in the current conditions,
     *                                  in the new claim conditions being set.
     */
    function setClaimConditions(ClaimCondition calldata phase, bool resetClaimEligibility) external;
}

// SPDX-License-Identifier: Apache-2.0
pragma solidity ^0.8.0;

/**
 *  Thirdweb's `LazyMint` is a contract extension for any base NFT contract. It lets you 'lazy mint' any number of NFTs
 *  at once. Here, 'lazy mint' means defining the metadata for particular tokenIds of your NFT contract, without actually
 *  minting a non-zero balance of NFTs of those tokenIds.
 */

interface ILazyMint {
    /// @dev Emitted when tokens are lazy minted.
    event TokensLazyMinted(uint256 indexed startTokenId, uint256 endTokenId, string baseURI, bytes encryptedBaseURI);

    /**
     *  @notice Lazy mints a given amount of NFTs.
     *
     *  @param amount           The number of NFTs to lazy mint.
     *
     *  @param baseURIForTokens The base URI for the 'n' number of NFTs being lazy minted, where the metadata for each
     *                          of those NFTs is `${baseURIForTokens}/${tokenId}`.
     *
     *  @param extraData        Additional bytes data to be used at the discretion of the consumer of the contract.
     *
     *  @return batchId         A unique integer identifier for the batch of NFTs lazy minted together.
     */
    function lazyMint(
        uint256 amount,
        string calldata baseURIForTokens,
        bytes calldata extraData
    ) external returns (uint256 batchId);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (utils/Multicall.sol)

pragma solidity ^0.8.0;

/**
 * @dev Provides a function to batch together multiple calls in a single external call.
 *
 * _Available since v4.1._
 */
interface IMulticall {
    /**
     * @dev Receives and executes a batch of function calls on this contract.
     */
    function multicall(bytes[] calldata data) external returns (bytes[] memory results);
}

// SPDX-License-Identifier: Apache 2.0
pragma solidity ^0.8.0;

interface IOperatorFilterRegistry {
    function isOperatorAllowed(address registrant, address operator) external view returns (bool);

    function register(address registrant) external;

    function registerAndSubscribe(address registrant, address subscription) external;

    function registerAndCopyEntries(address registrant, address registrantToCopy) external;

    function unregister(address addr) external;

    function updateOperator(
        address registrant,
        address operator,
        bool filtered
    ) external;

    function updateOperators(
        address registrant,
        address[] calldata operators,
        bool filtered
    ) external;

    function updateCodeHash(
        address registrant,
        bytes32 codehash,
        bool filtered
    ) external;

    function updateCodeHashes(
        address registrant,
        bytes32[] calldata codeHashes,
        bool filtered
    ) external;

    function subscribe(address registrant, address registrantToSubscribe) external;

    function unsubscribe(address registrant, bool copyExistingEntries) external;

    function subscriptionOf(address addr) external returns (address registrant);

    function subscribers(address registrant) external returns (address[] memory);

    function subscriberAt(address registrant, uint256 index) external returns (address);

    function copyEntriesOf(address registrant, address registrantToCopy) external;

    function isOperatorFiltered(address registrant, address operator) external returns (bool);

    function isCodeHashOfFiltered(address registrant, address operatorWithCode) external returns (bool);

    function isCodeHashFiltered(address registrant, bytes32 codeHash) external returns (bool);

    function filteredOperators(address addr) external returns (address[] memory);

    function filteredCodeHashes(address addr) external returns (bytes32[] memory);

    function filteredOperatorAt(address registrant, uint256 index) external returns (address);

    function filteredCodeHashAt(address registrant, uint256 index) external returns (bytes32);

    function isRegistered(address addr) external returns (bool);

    function codeHashOf(address addr) external returns (bytes32);
}

// SPDX-License-Identifier: Apache 2.0
pragma solidity ^0.8.0;

interface IOperatorFilterToggle {
    event OperatorRestriction(bool restriction);

    function operatorRestriction() external view returns (bool);

    function setOperatorRestriction(bool restriction) external;
}

// SPDX-License-Identifier: Apache-2.0
pragma solidity ^0.8.0;

/**
 *  Thirdweb's `Ownable` is a contract extension to be used with any base contract. It exposes functions for setting and reading
 *  who the 'owner' of the inheriting smart contract is, and lets the inheriting contract perform conditional logic that uses
 *  information about who the contract's owner is.
 */

interface IOwnable {
    /// @dev Returns the owner of the contract.
    function owner() external view returns (address);

    /// @dev Lets a module admin set a new owner for the contract. The new owner must be a module admin.
    function setOwner(address _newOwner) external;

    /// @dev Emitted when a new Owner is set.
    event OwnerUpdated(address indexed prevOwner, address indexed newOwner);
}

// SPDX-License-Identifier: Apache-2.0
pragma solidity ^0.8.0;

/**
 *  Thirdweb's `Primary` is a contract extension to be used with any base contract. It exposes functions for setting and reading
 *  the recipient of primary sales, and lets the inheriting contract perform conditional logic that uses information about
 *  primary sales, if desired.
 */

interface IPrimarySale {
    /// @dev The adress that receives all primary sales value.
    function primarySaleRecipient() external view returns (address);

    /// @dev Lets a module admin set the default recipient of all primary sales.
    function setPrimarySaleRecipient(address _saleRecipient) external;

    /// @dev Emitted when a new sale recipient is set.
    event PrimarySaleRecipientUpdated(address indexed recipient);
}

// SPDX-License-Identifier: Apache-2.0
pragma solidity ^0.8.0;

import "../../eip/interface/IERC2981.sol";

/**
 *  Thirdweb's `Royalty` is a contract extension to be used with any base contract. It exposes functions for setting and reading
 *  the recipient of royalty fee and the royalty fee basis points, and lets the inheriting contract perform conditional logic
 *  that uses information about royalty fees, if desired.
 *
 *  The `Royalty` contract is ERC2981 compliant.
 */

interface IRoyalty is IERC2981 {
    struct RoyaltyInfo {
        address recipient;
        uint256 bps;
    }

    /// @dev Returns the royalty recipient and fee bps.
    function getDefaultRoyaltyInfo() external view returns (address, uint16);

    /// @dev Lets a module admin update the royalty bps and recipient.
    function setDefaultRoyaltyInfo(address _royaltyRecipient, uint256 _royaltyBps) external;

    /// @dev Lets a module admin set the royalty recipient for a particular token Id.
    function setRoyaltyInfoForToken(
        uint256 tokenId,
        address recipient,
        uint256 bps
    ) external;

    /// @dev Returns the royalty recipient for a particular token Id.
    function getRoyaltyInfoForToken(uint256 tokenId) external view returns (address, uint16);

    /// @dev Emitted when royalty info is updated.
    event DefaultRoyalty(address indexed newRoyaltyRecipient, uint256 newRoyaltyBps);

    /// @dev Emitted when royalty recipient for tokenId is set
    event RoyaltyForToken(uint256 indexed tokenId, address indexed royaltyRecipient, uint256 royaltyBps);
}

// SPDX-License-Identifier: Apache-2.0
pragma solidity ^0.8.0;

interface IWETH {
    function deposit() external payable;

    function withdraw(uint256 amount) external;

    function transfer(address to, uint256 value) external returns (bool);
}

// SPDX-License-Identifier: Apache-2.0
pragma solidity ^0.8.0;

// Helper interfaces
import { IWETH } from "../interfaces/IWETH.sol";

import "../openzeppelin-presets/token/ERC20/utils/SafeERC20.sol";

library CurrencyTransferLib {
    using SafeERC20 for IERC20;

    /// @dev The address interpreted as native token of the chain.
    address public constant NATIVE_TOKEN = 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE;

    /// @dev Transfers a given amount of currency.
    function transferCurrency(
        address _currency,
        address _from,
        address _to,
        uint256 _amount
    ) internal {
        if (_amount == 0) {
            return;
        }

        if (_currency == NATIVE_TOKEN) {
            safeTransferNativeToken(_to, _amount);
        } else {
            safeTransferERC20(_currency, _from, _to, _amount);
        }
    }

    /// @dev Transfers a given amount of currency. (With native token wrapping)
    function transferCurrencyWithWrapper(
        address _currency,
        address _from,
        address _to,
        uint256 _amount,
        address _nativeTokenWrapper
    ) internal {
        if (_amount == 0) {
            return;
        }

        if (_currency == NATIVE_TOKEN) {
            if (_from == address(this)) {
                // withdraw from weth then transfer withdrawn native token to recipient
                IWETH(_nativeTokenWrapper).withdraw(_amount);
                safeTransferNativeTokenWithWrapper(_to, _amount, _nativeTokenWrapper);
            } else if (_to == address(this)) {
                // store native currency in weth
                require(_amount == msg.value, "msg.value != amount");
                IWETH(_nativeTokenWrapper).deposit{ value: _amount }();
            } else {
                safeTransferNativeTokenWithWrapper(_to, _amount, _nativeTokenWrapper);
            }
        } else {
            safeTransferERC20(_currency, _from, _to, _amount);
        }
    }

    /// @dev Transfer `amount` of ERC20 token from `from` to `to`.
    function safeTransferERC20(
        address _currency,
        address _from,
        address _to,
        uint256 _amount
    ) internal {
        if (_from == _to) {
            return;
        }

        if (_from == address(this)) {
            IERC20(_currency).safeTransfer(_to, _amount);
        } else {
            IERC20(_currency).safeTransferFrom(_from, _to, _amount);
        }
    }

    /// @dev Transfers `amount` of native token to `to`.
    function safeTransferNativeToken(address to, uint256 value) internal {
        // solhint-disable avoid-low-level-calls
        // slither-disable-next-line low-level-calls
        (bool success, ) = to.call{ value: value }("");
        require(success, "native token transfer failed");
    }

    /// @dev Transfers `amount` of native token to `to`. (With native token wrapping)
    function safeTransferNativeTokenWithWrapper(
        address to,
        uint256 value,
        address _nativeTokenWrapper
    ) internal {
        // solhint-disable avoid-low-level-calls
        // slither-disable-next-line low-level-calls
        (bool success, ) = to.call{ value: value }("");
        if (!success) {
            IWETH(_nativeTokenWrapper).deposit{ value: value }();
            IERC20(_nativeTokenWrapper).safeTransfer(to, value);
        }
    }
}

// SPDX-License-Identifier: MIT
// Modified from https://github.com/OpenZeppelin/openzeppelin-contracts/blob/v4.3.0/contracts/utils/cryptography/MerkleProof.sol
// Copied from https://github.com/ensdomains/governance/blob/master/contracts/MerkleProof.sol

pragma solidity ^0.8.0;

/**
 * @dev These functions deal with verification of Merkle Trees proofs.
 *
 * The proofs can be generated using the JavaScript library
 * https://github.com/miguelmota/merkletreejs[merkletreejs].
 * Note: the hashing algorithm should be keccak256 and pair sorting should be enabled.
 *
 * See `test/utils/cryptography/MerkleProof.test.js` for some examples.
 *
 * Source: https://github.com/ensdomains/governance/blob/master/contracts/MerkleProof.sol
 */
library MerkleProof {
    /**
     * @dev Returns true if a `leaf` can be proved to be a part of a Merkle tree
     * defined by `root`. For this, a `proof` must be provided, containing
     * sibling hashes on the branch from the leaf to the root of the tree. Each
     * pair of leaves and each pair of pre-images are assumed to be sorted.
     */
    function verify(
        bytes32[] memory proof,
        bytes32 root,
        bytes32 leaf
    ) internal pure returns (bool, uint256) {
        bytes32 computedHash = leaf;
        uint256 index = 0;

        for (uint256 i = 0; i < proof.length; i++) {
            index *= 2;
            bytes32 proofElement = proof[i];

            if (computedHash <= proofElement) {
                // Hash(current computed hash + current element of the proof)
                computedHash = keccak256(abi.encodePacked(computedHash, proofElement));
            } else {
                // Hash(current element of the proof + current computed hash)
                computedHash = keccak256(abi.encodePacked(proofElement, computedHash));
                index += 1;
            }
        }

        // Check if the computed hash (root) is equal to the provided root
        return (computedHash == root, index);
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (utils/Address.sol)

pragma solidity ^0.8.0;

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

        return account.code.length > 0;
    }

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

pragma solidity ^0.8.0;

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

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

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

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

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

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (security/ReentrancyGuard.sol)

pragma solidity ^0.8.0;

abstract contract ReentrancyGuard {
    uint256 private constant _NOT_ENTERED = 1;
    uint256 private constant _ENTERED = 2;

    uint256 private _status;

    constructor() {
        _status = _NOT_ENTERED;
    }

    /**
     * @dev Prevents a contract from calling itself, directly or indirectly.
     */
    modifier nonReentrant() {
        // On the first call to nonReentrant, _notEntered will be true
        require(_status != _ENTERED, "ReentrancyGuard: reentrant call");

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

        _;

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

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

pragma solidity ^0.8.0;

import "../../../../eip/interface/IERC20.sol";
import "../../../../lib/TWAddress.sol";

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

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

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

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

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

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

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

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

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

pragma solidity ^0.8.0;

/**
 * @dev Provides information about the current execution context, including the
 * sender of the transaction and its data. While these are generally available
 * via msg.sender and msg.data, they should not be accessed in such a direct
 * manner, since when dealing with meta-transactions the account sending and
 * paying for execution may not be the actual sender (as far as an application
 * is concerned).
 *
 * This contract is only required for intermediate, library-like contracts.
 */
abstract contract Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes calldata) {
        return msg.data;
    }
}

// SPDX-License-Identifier: Apache-2.0
pragma solidity ^0.8.0;

import "@thirdweb-dev/contracts/base/ERC721LazyMint.sol";
import "@thirdweb-dev/contracts/base/ERC721Drop.sol";
import {ERC1155CreatorImplementation} from "@manifoldxyz/creator-core-solidity/contracts/ERC1155CreatorImplementation.sol";

contract NounCreepz is ERC721LazyMint {
    ERC1155CreatorImplementation public immutable eggs;

    constructor(
        string memory _name,
        string memory _symbol,
        address _royaltyRecipient,
        uint128 _royaltyBps,
        address _eggsAddress
    ) ERC721LazyMint(_name, _symbol, _royaltyRecipient, _royaltyBps) {
        eggs = ERC1155CreatorImplementation(_eggsAddress);
    }

    function verifyClaim(address _claimer, uint256 _quantity)
        public
        view
        virtual
        override
    {
        address[] memory eggBalanceAddresses = new address[](5);
        eggBalanceAddresses[0] = _claimer;
        eggBalanceAddresses[1] = _claimer;
        eggBalanceAddresses[2] = _claimer;
        eggBalanceAddresses[3] = _claimer;
        eggBalanceAddresses[4] = _claimer;

        uint256[] memory eggBalanceIds = new uint256[](5);
        eggBalanceIds[0] = 2;
        eggBalanceIds[1] = 3;
        eggBalanceIds[2] = 4;
        eggBalanceIds[3] = 5;
        eggBalanceIds[4] = 6;

        uint256[] memory eggBalances = eggs.balanceOfBatch(
            eggBalanceAddresses,
            eggBalanceIds
        );

        uint256 eggCount = 0;

        for (uint256 i = 0; i < 5; i++) {
            eggCount = eggCount + eggBalances[i];
        }

        require(eggCount >= _quantity, "You don't own enough eggs");
    }

    function _transferTokensOnClaim(address _receiver, uint256 _quantity)
        internal
        override
        returns (uint256)
    {
        address[] memory eggBalanceAddresses = new address[](5);
        eggBalanceAddresses[0] = _receiver;
        eggBalanceAddresses[1] = _receiver;
        eggBalanceAddresses[2] = _receiver;
        eggBalanceAddresses[3] = _receiver;
        eggBalanceAddresses[4] = _receiver;

        uint256[] memory eggBalanceIds = new uint256[](5);
        // goerli
        // eggBalanceIds[0] = 2; // 5555 red
        // eggBalanceIds[1] = 3; // 4444 blue
        // eggBalanceIds[2] = 6; // 627 grey
        // eggBalanceIds[3] = 5; // 420 black
        // eggBalanceIds[4] = 4; // 65 bunny

        // main
        eggBalanceIds[0] = 3; // 5555 red
        eggBalanceIds[1] = 2; // 4444 blue
        eggBalanceIds[2] = 4; // 627 grey
        eggBalanceIds[3] = 6; // 420 black
        eggBalanceIds[4] = 5; // 65 bunny

        uint256[] memory eggBurnQuantities = new uint256[](5);

        uint256 eggSacrificesRemaining = _quantity;

        uint256[] memory eggBalances = eggs.balanceOfBatch(
            eggBalanceAddresses,
            eggBalanceIds
        );

        for (uint256 i = 0; i < 5; i++) {
            eggBurnQuantities[i] = eggBalances[i] >= eggSacrificesRemaining
                ? eggSacrificesRemaining
                : eggBalances[i];
            eggSacrificesRemaining =
                eggSacrificesRemaining -
                eggBurnQuantities[i];
        }

        eggs.burn(_receiver, eggBalanceIds, eggBurnQuantities);

        return super._transferTokensOnClaim(_receiver, _quantity);
    }
}

{
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "evmVersion": "london",
  "remappings": [],
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  }
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[{"internalType":"string","name":"_name","type":"string"},{"internalType":"string","name":"_symbol","type":"string"},{"internalType":"address","name":"_royaltyRecipient","type":"address"},{"internalType":"uint128","name":"_royaltyBps","type":"uint128"},{"internalType":"address","name":"_eggsAddress","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"ApprovalCallerNotOwnerNorApproved","type":"error"},{"inputs":[],"name":"ApprovalQueryForNonexistentToken","type":"error"},{"inputs":[],"name":"ApprovalToCurrentOwner","type":"error"},{"inputs":[],"name":"ApproveToCaller","type":"error"},{"inputs":[],"name":"BalanceQueryForZeroAddress","type":"error"},{"inputs":[],"name":"MintToZeroAddress","type":"error"},{"inputs":[],"name":"MintZeroQuantity","type":"error"},{"inputs":[{"internalType":"address","name":"operator","type":"address"}],"name":"OperatorNotAllowed","type":"error"},{"inputs":[],"name":"OwnerQueryForNonexistentToken","type":"error"},{"inputs":[],"name":"TransferCallerNotOwnerNorApproved","type":"error"},{"inputs":[],"name":"TransferFromIncorrectOwner","type":"error"},{"inputs":[],"name":"TransferToNonERC721ReceiverImplementer","type":"error"},{"inputs":[],"name":"TransferToZeroAddress","type":"error"},{"inputs":[],"name":"URIQueryForNonexistentToken","type":"error"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"approved","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"operator","type":"address"},{"indexed":false,"internalType":"bool","name":"approved","type":"bool"}],"name":"ApprovalForAll","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"string","name":"prevURI","type":"string"},{"indexed":false,"internalType":"string","name":"newURI","type":"string"}],"name":"ContractURIUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"newRoyaltyRecipient","type":"address"},{"indexed":false,"internalType":"uint256","name":"newRoyaltyBps","type":"uint256"}],"name":"DefaultRoyalty","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"bool","name":"restriction","type":"bool"}],"name":"OperatorRestriction","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"prevOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnerUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"},{"indexed":true,"internalType":"address","name":"royaltyRecipient","type":"address"},{"indexed":false,"internalType":"uint256","name":"royaltyBps","type":"uint256"}],"name":"RoyaltyForToken","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"claimer","type":"address"},{"indexed":true,"internalType":"address","name":"receiver","type":"address"},{"indexed":true,"internalType":"uint256","name":"startTokenId","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"quantityClaimed","type":"uint256"}],"name":"TokensClaimed","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"startTokenId","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"endTokenId","type":"uint256"},{"indexed":false,"internalType":"string","name":"baseURI","type":"string"},{"indexed":false,"internalType":"bytes","name":"encryptedBaseURI","type":"bytes"}],"name":"TokensLazyMinted","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"Transfer","type":"event"},{"inputs":[],"name":"OPERATOR_FILTER_REGISTRY","outputs":[{"internalType":"contract IOperatorFilterRegistry","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"operator","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"approve","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_tokenId","type":"uint256"}],"name":"burn","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_receiver","type":"address"},{"internalType":"uint256","name":"_quantity","type":"uint256"}],"name":"claim","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"contractURI","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"eggs","outputs":[{"internalType":"contract ERC1155CreatorImplementation","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"getApproved","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getBaseURICount","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_index","type":"uint256"}],"name":"getBatchIdAtIndex","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getDefaultRoyaltyInfo","outputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"uint16","name":"","type":"uint16"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_tokenId","type":"uint256"}],"name":"getRoyaltyInfoForToken","outputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"uint16","name":"","type":"uint16"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"operator","type":"address"}],"name":"isApprovedForAll","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_amount","type":"uint256"},{"internalType":"string","name":"_baseURIForTokens","type":"string"},{"internalType":"bytes","name":"_data","type":"bytes"}],"name":"lazyMint","outputs":[{"internalType":"uint256","name":"batchId","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes[]","name":"data","type":"bytes[]"}],"name":"multicall","outputs":[{"internalType":"bytes[]","name":"results","type":"bytes[]"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"nextTokenIdToClaim","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"nextTokenIdToMint","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"operatorRestriction","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"ownerOf","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"uint256","name":"salePrice","type":"uint256"}],"name":"royaltyInfo","outputs":[{"internalType":"address","name":"receiver","type":"address"},{"internalType":"uint256","name":"royaltyAmount","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"operator","type":"address"},{"internalType":"bool","name":"approved","type":"bool"}],"name":"setApprovalForAll","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"_uri","type":"string"}],"name":"setContractURI","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_royaltyRecipient","type":"address"},{"internalType":"uint256","name":"_royaltyBps","type":"uint256"}],"name":"setDefaultRoyaltyInfo","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bool","name":"_restriction","type":"bool"}],"name":"setOperatorRestriction","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_newOwner","type":"address"}],"name":"setOwner","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_tokenId","type":"uint256"},{"internalType":"address","name":"_recipient","type":"address"},{"internalType":"uint256","name":"_bps","type":"uint256"}],"name":"setRoyaltyInfoForToken","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes4","name":"interfaceId","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_tokenId","type":"uint256"}],"name":"tokenURI","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"transferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_claimer","type":"address"},{"internalType":"uint256","name":"_quantity","type":"uint256"}],"name":"verifyClaim","outputs":[],"stateMutability":"view","type":"function"}]

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00000000000000000000000000000000000000000000000000000000000000a000000000000000000000000000000000000000000000000000000000000000e00000000000000000000000008dc1bc54973ed54e44f77092598b0ed42bcbc56100000000000000000000000000000000000000000000000000000000000002ee000000000000000000000000e76ace6c00384015fd30a26edf0e8e161f75b2e7000000000000000000000000000000000000000000000000000000000000000a4e6f756e43726565707a0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000064e4f554e435a0000000000000000000000000000000000000000000000000000

-----Decoded View---------------
Arg [0] : _name (string): NounCreepz
Arg [1] : _symbol (string): NOUNCZ
Arg [2] : _royaltyRecipient (address): 0x8Dc1bc54973ed54E44F77092598B0eD42Bcbc561
Arg [3] : _royaltyBps (uint128): 750
Arg [4] : _eggsAddress (address): 0xe76aCE6c00384015Fd30A26edf0E8e161f75b2E7

-----Encoded View---------------
9 Constructor Arguments found :
Arg [0] : 00000000000000000000000000000000000000000000000000000000000000a0
Arg [1] : 00000000000000000000000000000000000000000000000000000000000000e0
Arg [2] : 0000000000000000000000008dc1bc54973ed54e44f77092598b0ed42bcbc561
Arg [3] : 00000000000000000000000000000000000000000000000000000000000002ee
Arg [4] : 000000000000000000000000e76ace6c00384015fd30a26edf0e8e161f75b2e7
Arg [5] : 000000000000000000000000000000000000000000000000000000000000000a
Arg [6] : 4e6f756e43726565707a00000000000000000000000000000000000000000000
Arg [7] : 0000000000000000000000000000000000000000000000000000000000000006
Arg [8] : 4e4f554e435a0000000000000000000000000000000000000000000000000000