Token

Contract Source Code (Solidity Standard Json-Input format)

IDE

• Blockscan IDE
• 🤖 Code ReaderBeta
• Remix IDE

More Options

• Similar
• Sol2Uml
• Submit Audit
• Compare

// SPDX-License-Identifier: MIT
// ERC721A Contracts v4.2.3
// Creator: Chiru Labs

pragma solidity ^0.8.4;

import './IERC721A.sol';

/**
 * @dev Interface of ERC721 token receiver.
 */
interface ERC721A__IERC721Receiver {
    function onERC721Received(
        address operator,
        address from,
        uint256 tokenId,
        bytes calldata data
    ) external returns (bytes4);
}

/**
 * @title ERC721A
 *
 * @dev Implementation of the [ERC721](https://eips.ethereum.org/EIPS/eip-721)
 * Non-Fungible Token Standard, including the Metadata extension.
 * Optimized for lower gas during batch mints.
 *
 * Token IDs are minted in sequential order (e.g. 0, 1, 2, 3, ...)
 * starting from `_startTokenId()`.
 *
 * Assumptions:
 *
 * - An owner cannot have more than 2**64 - 1 (max value of uint64) of supply.
 * - The maximum token ID cannot exceed 2**256 - 1 (max value of uint256).
 */
contract ERC721A is IERC721A {
    // Bypass for a `--via-ir` bug (https://github.com/chiru-labs/ERC721A/pull/364).
    struct TokenApprovalRef {
        address value;
    }

    // =============================================================
    //                           CONSTANTS
    // =============================================================

    // Mask of an entry in packed address data.
    uint256 private constant _BITMASK_ADDRESS_DATA_ENTRY = (1 << 64) - 1;

    // The bit position of `numberMinted` in packed address data.
    uint256 private constant _BITPOS_NUMBER_MINTED = 64;

    // The bit position of `numberBurned` in packed address data.
    uint256 private constant _BITPOS_NUMBER_BURNED = 128;

    // The bit position of `aux` in packed address data.
    uint256 private constant _BITPOS_AUX = 192;

    // Mask of all 256 bits in packed address data except the 64 bits for `aux`.
    uint256 private constant _BITMASK_AUX_COMPLEMENT = (1 << 192) - 1;

    // The bit position of `startTimestamp` in packed ownership.
    uint256 private constant _BITPOS_START_TIMESTAMP = 160;

    // The bit mask of the `burned` bit in packed ownership.
    uint256 private constant _BITMASK_BURNED = 1 << 224;

    // The bit position of the `nextInitialized` bit in packed ownership.
    uint256 private constant _BITPOS_NEXT_INITIALIZED = 225;

    // The bit mask of the `nextInitialized` bit in packed ownership.
    uint256 private constant _BITMASK_NEXT_INITIALIZED = 1 << 225;

    // The bit position of `extraData` in packed ownership.
    uint256 private constant _BITPOS_EXTRA_DATA = 232;

    // Mask of all 256 bits in a packed ownership except the 24 bits for `extraData`.
    uint256 private constant _BITMASK_EXTRA_DATA_COMPLEMENT = (1 << 232) - 1;

    // The mask of the lower 160 bits for addresses.
    uint256 private constant _BITMASK_ADDRESS = (1 << 160) - 1;

    // The maximum `quantity` that can be minted with {_mintERC2309}.
    // This limit is to prevent overflows on the address data entries.
    // For a limit of 5000, a total of 3.689e15 calls to {_mintERC2309}
    // is required to cause an overflow, which is unrealistic.
    uint256 private constant _MAX_MINT_ERC2309_QUANTITY_LIMIT = 5000;

    // The `Transfer` event signature is given by:
    // `keccak256(bytes("Transfer(address,address,uint256)"))`.
    bytes32 private constant _TRANSFER_EVENT_SIGNATURE =
        0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef;

    // =============================================================
    //                            STORAGE
    // =============================================================

    // The next token ID to be minted.
    uint256 private _currentIndex;

    // The number of tokens burned.
    uint256 private _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 {_packedOwnershipOf} implementation for details.
    //
    // Bits Layout:
    // - [0..159]   `addr`
    // - [160..223] `startTimestamp`
    // - [224]      `burned`
    // - [225]      `nextInitialized`
    // - [232..255] `extraData`
    mapping(uint256 => uint256) private _packedOwnerships;

    // Mapping owner address to address data.
    //
    // Bits Layout:
    // - [0..63]    `balance`
    // - [64..127]  `numberMinted`
    // - [128..191] `numberBurned`
    // - [192..255] `aux`
    mapping(address => uint256) private _packedAddressData;

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

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

    // =============================================================
    //                          CONSTRUCTOR
    // =============================================================

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

    // =============================================================
    //                   TOKEN COUNTING OPERATIONS
    // =============================================================

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

    /**
     * @dev Returns the next token ID to be minted.
     */
    function _nextTokenId() internal view virtual returns (uint256) {
        return _currentIndex;
    }

    /**
     * @dev Returns the total number of tokens in existence.
     * Burned tokens will reduce the count.
     * To get the total number of tokens minted, please see {_totalMinted}.
     */
    function totalSupply() public view virtual override returns (uint256) {
        // Counter underflow is impossible as _burnCounter cannot be incremented
        // more than `_currentIndex - _startTokenId()` times.
        unchecked {
            return _currentIndex - _burnCounter - _startTokenId();
        }
    }

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

    /**
     * @dev Returns the total number of tokens burned.
     */
    function _totalBurned() internal view virtual returns (uint256) {
        return _burnCounter;
    }

    // =============================================================
    //                    ADDRESS DATA OPERATIONS
    // =============================================================

    /**
     * @dev Returns the number of tokens in `owner`'s account.
     */
    function balanceOf(address owner) public view virtual override returns (uint256) {
        if (owner == address(0)) revert BalanceQueryForZeroAddress();
        return _packedAddressData[owner] & _BITMASK_ADDRESS_DATA_ENTRY;
    }

    /**
     * Returns the number of tokens minted by `owner`.
     */
    function _numberMinted(address owner) internal view returns (uint256) {
        return (_packedAddressData[owner] >> _BITPOS_NUMBER_MINTED) & _BITMASK_ADDRESS_DATA_ENTRY;
    }

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

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

    /**
     * Sets the auxiliary 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 virtual {
        uint256 packed = _packedAddressData[owner];
        uint256 auxCasted;
        // Cast `aux` with assembly to avoid redundant masking.
        assembly {
            auxCasted := aux
        }
        packed = (packed & _BITMASK_AUX_COMPLEMENT) | (auxCasted << _BITPOS_AUX);
        _packedAddressData[owner] = packed;
    }

    // =============================================================
    //                            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 30000 gas.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
        // The interface IDs are constants representing the first 4 bytes
        // of the XOR of all function selectors in the interface.
        // See: [ERC165](https://eips.ethereum.org/EIPS/eip-165)
        // (e.g. `bytes4(i.functionA.selector ^ i.functionB.selector ^ ...)`)
        return
            interfaceId == 0x01ffc9a7 || // ERC165 interface ID for ERC165.
            interfaceId == 0x80ac58cd || // ERC165 interface ID for ERC721.
            interfaceId == 0x5b5e139f; // ERC165 interface ID for ERC721Metadata.
    }

    // =============================================================
    //                        IERC721Metadata
    // =============================================================

    /**
     * @dev Returns the token collection name.
     */
    function name() public view virtual override returns (string memory) {
        return _name;
    }

    /**
     * @dev Returns the token collection symbol.
     */
    function symbol() public view virtual override returns (string memory) {
        return _symbol;
    }

    /**
     * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token.
     */
    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, _toString(tokenId))) : '';
    }

    /**
     * @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, it can be overridden in child contracts.
     */
    function _baseURI() internal view virtual returns (string memory) {
        return '';
    }

    // =============================================================
    //                     OWNERSHIPS OPERATIONS
    // =============================================================

    /**
     * @dev Returns the owner of the `tokenId` token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function ownerOf(uint256 tokenId) public view virtual override returns (address) {
        return address(uint160(_packedOwnershipOf(tokenId)));
    }

    /**
     * @dev Gas spent here starts off proportional to the maximum mint batch size.
     * It gradually moves to O(1) as tokens get transferred around over time.
     */
    function _ownershipOf(uint256 tokenId) internal view virtual returns (TokenOwnership memory) {
        return _unpackedOwnership(_packedOwnershipOf(tokenId));
    }

    /**
     * @dev Returns the unpacked `TokenOwnership` struct at `index`.
     */
    function _ownershipAt(uint256 index) internal view virtual returns (TokenOwnership memory) {
        return _unpackedOwnership(_packedOwnerships[index]);
    }

    /**
     * @dev Initializes the ownership slot minted at `index` for efficiency purposes.
     */
    function _initializeOwnershipAt(uint256 index) internal virtual {
        if (_packedOwnerships[index] == 0) {
            _packedOwnerships[index] = _packedOwnershipOf(index);
        }
    }

    /**
     * Returns the packed ownership data of `tokenId`.
     */
    function _packedOwnershipOf(uint256 tokenId) private view returns (uint256) {
        uint256 curr = tokenId;

        unchecked {
            if (_startTokenId() <= curr)
                if (curr < _currentIndex) {
                    uint256 packed = _packedOwnerships[curr];
                    // If not burned.
                    if (packed & _BITMASK_BURNED == 0) {
                        // Invariant:
                        // There will always be an initialized ownership slot
                        // (i.e. `ownership.addr != address(0) && ownership.burned == false`)
                        // before an unintialized ownership slot
                        // (i.e. `ownership.addr == address(0) && ownership.burned == false`)
                        // Hence, `curr` will not underflow.
                        //
                        // We can directly compare the packed value.
                        // If the address is zero, packed will be zero.
                        while (packed == 0) {
                            packed = _packedOwnerships[--curr];
                        }
                        return packed;
                    }
                }
        }
        revert OwnerQueryForNonexistentToken();
    }

    /**
     * @dev Returns the unpacked `TokenOwnership` struct from `packed`.
     */
    function _unpackedOwnership(uint256 packed) private pure returns (TokenOwnership memory ownership) {
        ownership.addr = address(uint160(packed));
        ownership.startTimestamp = uint64(packed >> _BITPOS_START_TIMESTAMP);
        ownership.burned = packed & _BITMASK_BURNED != 0;
        ownership.extraData = uint24(packed >> _BITPOS_EXTRA_DATA);
    }

    /**
     * @dev Packs ownership data into a single uint256.
     */
    function _packOwnershipData(address owner, uint256 flags) private view returns (uint256 result) {
        assembly {
            // Mask `owner` to the lower 160 bits, in case the upper bits somehow aren't clean.
            owner := and(owner, _BITMASK_ADDRESS)
            // `owner | (block.timestamp << _BITPOS_START_TIMESTAMP) | flags`.
            result := or(owner, or(shl(_BITPOS_START_TIMESTAMP, timestamp()), flags))
        }
    }

    /**
     * @dev Returns the `nextInitialized` flag set if `quantity` equals 1.
     */
    function _nextInitializedFlag(uint256 quantity) private pure returns (uint256 result) {
        // For branchless setting of the `nextInitialized` flag.
        assembly {
            // `(quantity == 1) << _BITPOS_NEXT_INITIALIZED`.
            result := shl(_BITPOS_NEXT_INITIALIZED, eq(quantity, 1))
        }
    }

    // =============================================================
    //                      APPROVAL OPERATIONS
    // =============================================================

    /**
     * @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) public virtual override {
        address owner = ownerOf(tokenId);

        if (_msgSenderERC721A() != owner)
            if (!isApprovedForAll(owner, _msgSenderERC721A())) {
                revert ApprovalCallerNotOwnerNorApproved();
            }

        _tokenApprovals[tokenId].value = to;
        emit Approval(owner, to, tokenId);
    }

    /**
     * @dev Returns the account approved for `tokenId` token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function getApproved(uint256 tokenId) public view virtual override returns (address) {
        if (!_exists(tokenId)) revert ApprovalQueryForNonexistentToken();

        return _tokenApprovals[tokenId].value;
    }

    /**
     * @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) public virtual override {
        _operatorApprovals[_msgSenderERC721A()][operator] = approved;
        emit ApprovalForAll(_msgSenderERC721A(), operator, approved);
    }

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

    /**
     * @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. See {_mint}.
     */
    function _exists(uint256 tokenId) internal view virtual returns (bool) {
        return
            _startTokenId() <= tokenId &&
            tokenId < _currentIndex && // If within bounds,
            _packedOwnerships[tokenId] & _BITMASK_BURNED == 0; // and not burned.
    }

    /**
     * @dev Returns whether `msgSender` is equal to `approvedAddress` or `owner`.
     */
    function _isSenderApprovedOrOwner(
        address approvedAddress,
        address owner,
        address msgSender
    ) private pure returns (bool result) {
        assembly {
            // Mask `owner` to the lower 160 bits, in case the upper bits somehow aren't clean.
            owner := and(owner, _BITMASK_ADDRESS)
            // Mask `msgSender` to the lower 160 bits, in case the upper bits somehow aren't clean.
            msgSender := and(msgSender, _BITMASK_ADDRESS)
            // `msgSender == owner || msgSender == approvedAddress`.
            result := or(eq(msgSender, owner), eq(msgSender, approvedAddress))
        }
    }

    /**
     * @dev Returns the storage slot and value for the approved address of `tokenId`.
     */
    function _getApprovedSlotAndAddress(uint256 tokenId)
        private
        view
        returns (uint256 approvedAddressSlot, address approvedAddress)
    {
        TokenApprovalRef storage tokenApproval = _tokenApprovals[tokenId];
        // The following is equivalent to `approvedAddress = _tokenApprovals[tokenId].value`.
        assembly {
            approvedAddressSlot := tokenApproval.slot
            approvedAddress := sload(approvedAddressSlot)
        }
    }

    // =============================================================
    //                      TRANSFER OPERATIONS
    // =============================================================

    /**
     * @dev Transfers `tokenId` from `from` to `to`.
     *
     * 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
    ) public virtual override {
        uint256 prevOwnershipPacked = _packedOwnershipOf(tokenId);

        if (address(uint160(prevOwnershipPacked)) != from) revert TransferFromIncorrectOwner();

        (uint256 approvedAddressSlot, address approvedAddress) = _getApprovedSlotAndAddress(tokenId);

        // The nested ifs save around 20+ gas over a compound boolean condition.
        if (!_isSenderApprovedOrOwner(approvedAddress, from, _msgSenderERC721A()))
            if (!isApprovedForAll(from, _msgSenderERC721A())) revert TransferCallerNotOwnerNorApproved();

        if (to == address(0)) revert TransferToZeroAddress();

        _beforeTokenTransfers(from, to, tokenId, 1);

        // Clear approvals from the previous owner.
        assembly {
            if approvedAddress {
                // This is equivalent to `delete _tokenApprovals[tokenId]`.
                sstore(approvedAddressSlot, 0)
            }
        }

        // 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 {
            // We can directly increment and decrement the balances.
            --_packedAddressData[from]; // Updates: `balance -= 1`.
            ++_packedAddressData[to]; // Updates: `balance += 1`.

            // Updates:
            // - `address` to the next owner.
            // - `startTimestamp` to the timestamp of transfering.
            // - `burned` to `false`.
            // - `nextInitialized` to `true`.
            _packedOwnerships[tokenId] = _packOwnershipData(
                to,
                _BITMASK_NEXT_INITIALIZED | _nextExtraData(from, to, prevOwnershipPacked)
            );

            // If the next slot may not have been initialized (i.e. `nextInitialized == false`) .
            if (prevOwnershipPacked & _BITMASK_NEXT_INITIALIZED == 0) {
                uint256 nextTokenId = tokenId + 1;
                // If the next slot's address is zero and not burned (i.e. packed value is zero).
                if (_packedOwnerships[nextTokenId] == 0) {
                    // If the next slot is within bounds.
                    if (nextTokenId != _currentIndex) {
                        // Initialize the next slot to maintain correctness for `ownerOf(tokenId + 1)`.
                        _packedOwnerships[nextTokenId] = prevOwnershipPacked;
                    }
                }
            }
        }

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

    /**
     * @dev Equivalent to `safeTransferFrom(from, to, tokenId, '')`.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId
    ) public virtual override {
        safeTransferFrom(from, to, tokenId, '');
    }

    /**
     * @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 memory _data
    ) public virtual override {
        transferFrom(from, to, tokenId);
        if (to.code.length != 0)
            if (!_checkContractOnERC721Received(from, to, tokenId, _data)) {
                revert TransferToNonERC721ReceiverImplementer();
            }
    }

    /**
     * @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 {}

    /**
     * @dev Private function to invoke {IERC721Receiver-onERC721Received} on a target contract.
     *
     * `from` - Previous owner of the given token ID.
     * `to` - Target address that will receive the token.
     * `tokenId` - Token ID to be transferred.
     * `_data` - Optional data to send along with the call.
     *
     * Returns whether the call correctly returned the expected magic value.
     */
    function _checkContractOnERC721Received(
        address from,
        address to,
        uint256 tokenId,
        bytes memory _data
    ) private returns (bool) {
        try ERC721A__IERC721Receiver(to).onERC721Received(_msgSenderERC721A(), from, tokenId, _data) returns (
            bytes4 retval
        ) {
            return retval == ERC721A__IERC721Receiver(to).onERC721Received.selector;
        } catch (bytes memory reason) {
            if (reason.length == 0) {
                revert TransferToNonERC721ReceiverImplementer();
            } else {
                assembly {
                    revert(add(32, reason), mload(reason))
                }
            }
        }
    }

    // =============================================================
    //                        MINT OPERATIONS
    // =============================================================

    /**
     * @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 for each mint.
     */
    function _mint(address to, uint256 quantity) internal virtual {
        uint256 startTokenId = _currentIndex;
        if (quantity == 0) revert MintZeroQuantity();

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

        // Overflows are incredibly unrealistic.
        // `balance` and `numberMinted` have a maximum limit of 2**64.
        // `tokenId` has a maximum limit of 2**256.
        unchecked {
            // Updates:
            // - `balance += quantity`.
            // - `numberMinted += quantity`.
            //
            // We can directly add to the `balance` and `numberMinted`.
            _packedAddressData[to] += quantity * ((1 << _BITPOS_NUMBER_MINTED) | 1);

            // Updates:
            // - `address` to the owner.
            // - `startTimestamp` to the timestamp of minting.
            // - `burned` to `false`.
            // - `nextInitialized` to `quantity == 1`.
            _packedOwnerships[startTokenId] = _packOwnershipData(
                to,
                _nextInitializedFlag(quantity) | _nextExtraData(address(0), to, 0)
            );

            uint256 toMasked;
            uint256 end = startTokenId + quantity;

            // Use assembly to loop and emit the `Transfer` event for gas savings.
            // The duplicated `log4` removes an extra check and reduces stack juggling.
            // The assembly, together with the surrounding Solidity code, have been
            // delicately arranged to nudge the compiler into producing optimized opcodes.
            assembly {
                // Mask `to` to the lower 160 bits, in case the upper bits somehow aren't clean.
                toMasked := and(to, _BITMASK_ADDRESS)
                // Emit the `Transfer` event.
                log4(
                    0, // Start of data (0, since no data).
                    0, // End of data (0, since no data).
                    _TRANSFER_EVENT_SIGNATURE, // Signature.
                    0, // `address(0)`.
                    toMasked, // `to`.
                    startTokenId // `tokenId`.
                )

                // The `iszero(eq(,))` check ensures that large values of `quantity`
                // that overflows uint256 will make the loop run out of gas.
                // The compiler will optimize the `iszero` away for performance.
                for {
                    let tokenId := add(startTokenId, 1)
                } iszero(eq(tokenId, end)) {
                    tokenId := add(tokenId, 1)
                } {
                    // Emit the `Transfer` event. Similar to above.
                    log4(0, 0, _TRANSFER_EVENT_SIGNATURE, 0, toMasked, tokenId)
                }
            }
            if (toMasked == 0) revert MintToZeroAddress();

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

    /**
     * @dev Mints `quantity` tokens and transfers them to `to`.
     *
     * This function is intended for efficient minting only during contract creation.
     *
     * It emits only one {ConsecutiveTransfer} as defined in
     * [ERC2309](https://eips.ethereum.org/EIPS/eip-2309),
     * instead of a sequence of {Transfer} event(s).
     *
     * Calling this function outside of contract creation WILL make your contract
     * non-compliant with the ERC721 standard.
     * For full ERC721 compliance, substituting ERC721 {Transfer} event(s) with the ERC2309
     * {ConsecutiveTransfer} event is only permissible during contract creation.
     *
     * Requirements:
     *
     * - `to` cannot be the zero address.
     * - `quantity` must be greater than 0.
     *
     * Emits a {ConsecutiveTransfer} event.
     */
    function _mintERC2309(address to, uint256 quantity) internal virtual {
        uint256 startTokenId = _currentIndex;
        if (to == address(0)) revert MintToZeroAddress();
        if (quantity == 0) revert MintZeroQuantity();
        if (quantity > _MAX_MINT_ERC2309_QUANTITY_LIMIT) revert MintERC2309QuantityExceedsLimit();

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

        // Overflows are unrealistic due to the above check for `quantity` to be below the limit.
        unchecked {
            // Updates:
            // - `balance += quantity`.
            // - `numberMinted += quantity`.
            //
            // We can directly add to the `balance` and `numberMinted`.
            _packedAddressData[to] += quantity * ((1 << _BITPOS_NUMBER_MINTED) | 1);

            // Updates:
            // - `address` to the owner.
            // - `startTimestamp` to the timestamp of minting.
            // - `burned` to `false`.
            // - `nextInitialized` to `quantity == 1`.
            _packedOwnerships[startTokenId] = _packOwnershipData(
                to,
                _nextInitializedFlag(quantity) | _nextExtraData(address(0), to, 0)
            );

            emit ConsecutiveTransfer(startTokenId, startTokenId + quantity - 1, address(0), to);

            _currentIndex = startTokenId + quantity;
        }
        _afterTokenTransfers(address(0), to, startTokenId, 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.
     *
     * See {_mint}.
     *
     * Emits a {Transfer} event for each mint.
     */
    function _safeMint(
        address to,
        uint256 quantity,
        bytes memory _data
    ) internal virtual {
        _mint(to, quantity);

        unchecked {
            if (to.code.length != 0) {
                uint256 end = _currentIndex;
                uint256 index = end - quantity;
                do {
                    if (!_checkContractOnERC721Received(address(0), to, index++, _data)) {
                        revert TransferToNonERC721ReceiverImplementer();
                    }
                } while (index < end);
                // Reentrancy protection.
                if (_currentIndex != end) revert();
            }
        }
    }

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

    // =============================================================
    //                        BURN OPERATIONS
    // =============================================================

    /**
     * @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 {
        uint256 prevOwnershipPacked = _packedOwnershipOf(tokenId);

        address from = address(uint160(prevOwnershipPacked));

        (uint256 approvedAddressSlot, address approvedAddress) = _getApprovedSlotAndAddress(tokenId);

        if (approvalCheck) {
            // The nested ifs save around 20+ gas over a compound boolean condition.
            if (!_isSenderApprovedOrOwner(approvedAddress, from, _msgSenderERC721A()))
                if (!isApprovedForAll(from, _msgSenderERC721A())) revert TransferCallerNotOwnerNorApproved();
        }

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

        // Clear approvals from the previous owner.
        assembly {
            if approvedAddress {
                // This is equivalent to `delete _tokenApprovals[tokenId]`.
                sstore(approvedAddressSlot, 0)
            }
        }

        // 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 {
            // Updates:
            // - `balance -= 1`.
            // - `numberBurned += 1`.
            //
            // We can directly decrement the balance, and increment the number burned.
            // This is equivalent to `packed -= 1; packed += 1 << _BITPOS_NUMBER_BURNED;`.
            _packedAddressData[from] += (1 << _BITPOS_NUMBER_BURNED) - 1;

            // Updates:
            // - `address` to the last owner.
            // - `startTimestamp` to the timestamp of burning.
            // - `burned` to `true`.
            // - `nextInitialized` to `true`.
            _packedOwnerships[tokenId] = _packOwnershipData(
                from,
                (_BITMASK_BURNED | _BITMASK_NEXT_INITIALIZED) | _nextExtraData(from, address(0), prevOwnershipPacked)
            );

            // If the next slot may not have been initialized (i.e. `nextInitialized == false`) .
            if (prevOwnershipPacked & _BITMASK_NEXT_INITIALIZED == 0) {
                uint256 nextTokenId = tokenId + 1;
                // If the next slot's address is zero and not burned (i.e. packed value is zero).
                if (_packedOwnerships[nextTokenId] == 0) {
                    // If the next slot is within bounds.
                    if (nextTokenId != _currentIndex) {
                        // Initialize the next slot to maintain correctness for `ownerOf(tokenId + 1)`.
                        _packedOwnerships[nextTokenId] = prevOwnershipPacked;
                    }
                }
            }
        }

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

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

    // =============================================================
    //                     EXTRA DATA OPERATIONS
    // =============================================================

    /**
     * @dev Directly sets the extra data for the ownership data `index`.
     */
    function _setExtraDataAt(uint256 index, uint24 extraData) internal virtual {
        uint256 packed = _packedOwnerships[index];
        if (packed == 0) revert OwnershipNotInitializedForExtraData();
        uint256 extraDataCasted;
        // Cast `extraData` with assembly to avoid redundant masking.
        assembly {
            extraDataCasted := extraData
        }
        packed = (packed & _BITMASK_EXTRA_DATA_COMPLEMENT) | (extraDataCasted << _BITPOS_EXTRA_DATA);
        _packedOwnerships[index] = packed;
    }

    /**
     * @dev Called during each token transfer to set the 24bit `extraData` field.
     * Intended to be overridden by the cosumer contract.
     *
     * `previousExtraData` - the value of `extraData` before transfer.
     *
     * 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 _extraData(
        address from,
        address to,
        uint24 previousExtraData
    ) internal view virtual returns (uint24) {}

    /**
     * @dev Returns the next extra data for the packed ownership data.
     * The returned result is shifted into position.
     */
    function _nextExtraData(
        address from,
        address to,
        uint256 prevOwnershipPacked
    ) private view returns (uint256) {
        uint24 extraData = uint24(prevOwnershipPacked >> _BITPOS_EXTRA_DATA);
        return uint256(_extraData(from, to, extraData)) << _BITPOS_EXTRA_DATA;
    }

    // =============================================================
    //                       OTHER OPERATIONS
    // =============================================================

    /**
     * @dev Returns the message sender (defaults to `msg.sender`).
     *
     * If you are writing GSN compatible contracts, you need to override this function.
     */
    function _msgSenderERC721A() internal view virtual returns (address) {
        return msg.sender;
    }

    /**
     * @dev Converts a uint256 to its ASCII string decimal representation.
     */
    function _toString(uint256 value) internal pure virtual returns (string memory str) {
        assembly {
            // The maximum value of a uint256 contains 78 digits (1 byte per digit), but
            // we allocate 0xa0 bytes to keep the free memory pointer 32-byte word aligned.
            // We will need 1 word for the trailing zeros padding, 1 word for the length,
            // and 3 words for a maximum of 78 digits. Total: 5 * 0x20 = 0xa0.
            let m := add(mload(0x40), 0xa0)
            // Update the free memory pointer to allocate.
            mstore(0x40, m)
            // Assign the `str` to the end.
            str := sub(m, 0x20)
            // Zeroize the slot after the string.
            mstore(str, 0)

            // Cache the end of the memory to calculate the length later.
            let end := str

            // We write the string from rightmost digit to leftmost digit.
            // The following is essentially a do-while loop that also handles the zero case.
            // prettier-ignore
            for { let temp := value } 1 {} {
                str := sub(str, 1)
                // Write the character to the pointer.
                // The ASCII index of the '0' character is 48.
                mstore8(str, add(48, mod(temp, 10)))
                // Keep dividing `temp` until zero.
                temp := div(temp, 10)
                // prettier-ignore
                if iszero(temp) { break }
            }

            let length := sub(end, str)
            // Move the pointer 32 bytes leftwards to make room for the length.
            str := sub(str, 0x20)
            // Store the length.
            mstore(str, length)
        }
    }
}

// SPDX-License-Identifier: MIT
// ERC721A Contracts v4.2.3
// Creator: Chiru Labs

pragma solidity ^0.8.4;

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

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

    /**
     * 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();

    /**
     * The `quantity` minted with ERC2309 exceeds the safety limit.
     */
    error MintERC2309QuantityExceedsLimit();

    /**
     * The `extraData` cannot be set on an unintialized ownership slot.
     */
    error OwnershipNotInitializedForExtraData();

    // =============================================================
    //                            STRUCTS
    // =============================================================

    struct TokenOwnership {
        // The address of the owner.
        address addr;
        // Stores the start time of ownership with minimal overhead for tokenomics.
        uint64 startTimestamp;
        // Whether the token has been burned.
        bool burned;
        // Arbitrary data similar to `startTimestamp` that can be set via {_extraData}.
        uint24 extraData;
    }

    // =============================================================
    //                         TOKEN COUNTERS
    // =============================================================

    /**
     * @dev Returns the total number of tokens in existence.
     * Burned tokens will reduce the count.
     * To get the total number of tokens minted, please see {_totalMinted}.
     */
    function totalSupply() external view returns (uint256);

    // =============================================================
    //                            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 30000 gas.
     */
    function supportsInterface(bytes4 interfaceId) external view returns (bool);

    // =============================================================
    //                            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 balance);

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

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

    /**
     * @dev Equivalent to `safeTransferFrom(from, to, tokenId, '')`.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId
    ) external;

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

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

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

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

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

    // =============================================================
    //                        IERC721Metadata
    // =============================================================

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

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

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

    // =============================================================
    //                           IERC2309
    // =============================================================

    /**
     * @dev Emitted when tokens in `fromTokenId` to `toTokenId`
     * (inclusive) is transferred from `from` to `to`, as defined in the
     * [ERC2309](https://eips.ethereum.org/EIPS/eip-2309) standard.
     *
     * See {_mintERC2309} for more details.
     */
    event ConsecutiveTransfer(uint256 indexed fromTokenId, uint256 toTokenId, address indexed from, address indexed to);
}

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

pragma solidity ^0.8.0;

import "../utils/Context.sol";

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

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

    /**
     * @dev Initializes the contract setting the deployer as the initial owner.
     */
    constructor() {
        _transferOwnership(_msgSender());
    }

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

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

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

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

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

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

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (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() {
        _nonReentrantBefore();
        _;
        _nonReentrantAfter();
    }

    function _nonReentrantBefore() private {
        // On the first call to nonReentrant, _status will be _NOT_ENTERED
        require(_status != _ENTERED, "ReentrancyGuard: reentrant call");

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

    function _nonReentrantAfter() private {
        // 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 (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: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (utils/Strings.sol)

pragma solidity ^0.8.0;

import "./math/Math.sol";

/**
 * @dev String operations.
 */
library Strings {
    bytes16 private constant _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) {
        unchecked {
            uint256 length = Math.log10(value) + 1;
            string memory buffer = new string(length);
            uint256 ptr;
            /// @solidity memory-safe-assembly
            assembly {
                ptr := add(buffer, add(32, length))
            }
            while (true) {
                ptr--;
                /// @solidity memory-safe-assembly
                assembly {
                    mstore8(ptr, byte(mod(value, 10), _SYMBOLS))
                }
                value /= 10;
                if (value == 0) break;
            }
            return buffer;
        }
    }

    /**
     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
     */
    function toHexString(uint256 value) internal pure returns (string memory) {
        unchecked {
            return toHexString(value, Math.log256(value) + 1);
        }
    }

    /**
     * @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] = _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 (last updated v4.8.0) (utils/cryptography/ECDSA.sol)

pragma solidity ^0.8.0;

import "../Strings.sol";

/**
 * @dev Elliptic Curve Digital Signature Algorithm (ECDSA) operations.
 *
 * These functions can be used to verify that a message was signed by the holder
 * of the private keys of a given address.
 */
library ECDSA {
    enum RecoverError {
        NoError,
        InvalidSignature,
        InvalidSignatureLength,
        InvalidSignatureS,
        InvalidSignatureV // Deprecated in v4.8
    }

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

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

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

    /**
     * @dev Overload of {ECDSA-tryRecover} that receives the `r` and `vs` short-signature fields separately.
     *
     * See https://eips.ethereum.org/EIPS/eip-2098[EIP-2098 short signatures]
     *
     * _Available since v4.3._
     */
    function tryRecover(
        bytes32 hash,
        bytes32 r,
        bytes32 vs
    ) internal pure returns (address, RecoverError) {
        bytes32 s = vs & bytes32(0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff);
        uint8 v = uint8((uint256(vs) >> 255) + 27);
        return tryRecover(hash, v, r, s);
    }

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

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

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

        return (signer, RecoverError.NoError);
    }

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

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

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

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

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (utils/math/Math.sol)

pragma solidity ^0.8.0;

/**
 * @dev Standard math utilities missing in the Solidity language.
 */
library Math {
    enum Rounding {
        Down, // Toward negative infinity
        Up, // Toward infinity
        Zero // Toward zero
    }

    /**
     * @dev Returns the largest of two numbers.
     */
    function max(uint256 a, uint256 b) internal pure returns (uint256) {
        return a > b ? a : b;
    }

    /**
     * @dev Returns the smallest of two numbers.
     */
    function min(uint256 a, uint256 b) internal pure returns (uint256) {
        return a < b ? a : b;
    }

    /**
     * @dev Returns the average of two numbers. The result is rounded towards
     * zero.
     */
    function average(uint256 a, uint256 b) internal pure returns (uint256) {
        // (a + b) / 2 can overflow.
        return (a & b) + (a ^ b) / 2;
    }

    /**
     * @dev Returns the ceiling of the division of two numbers.
     *
     * This differs from standard division with `/` in that it rounds up instead
     * of rounding down.
     */
    function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) {
        // (a + b - 1) / b can overflow on addition, so we distribute.
        return a == 0 ? 0 : (a - 1) / b + 1;
    }

    /**
     * @notice Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or denominator == 0
     * @dev Original credit to Remco Bloemen under MIT license (https://xn--2-umb.com/21/muldiv)
     * with further edits by Uniswap Labs also under MIT license.
     */
    function mulDiv(
        uint256 x,
        uint256 y,
        uint256 denominator
    ) internal pure returns (uint256 result) {
        unchecked {
            // 512-bit multiply [prod1 prod0] = x * y. Compute the product mod 2^256 and mod 2^256 - 1, then use
            // use the Chinese Remainder Theorem to reconstruct the 512 bit result. The result is stored in two 256
            // variables such that product = prod1 * 2^256 + prod0.
            uint256 prod0; // Least significant 256 bits of the product
            uint256 prod1; // Most significant 256 bits of the product
            assembly {
                let mm := mulmod(x, y, not(0))
                prod0 := mul(x, y)
                prod1 := sub(sub(mm, prod0), lt(mm, prod0))
            }

            // Handle non-overflow cases, 256 by 256 division.
            if (prod1 == 0) {
                return prod0 / denominator;
            }

            // Make sure the result is less than 2^256. Also prevents denominator == 0.
            require(denominator > prod1);

            ///////////////////////////////////////////////
            // 512 by 256 division.
            ///////////////////////////////////////////////

            // Make division exact by subtracting the remainder from [prod1 prod0].
            uint256 remainder;
            assembly {
                // Compute remainder using mulmod.
                remainder := mulmod(x, y, denominator)

                // Subtract 256 bit number from 512 bit number.
                prod1 := sub(prod1, gt(remainder, prod0))
                prod0 := sub(prod0, remainder)
            }

            // Factor powers of two out of denominator and compute largest power of two divisor of denominator. Always >= 1.
            // See https://cs.stackexchange.com/q/138556/92363.

            // Does not overflow because the denominator cannot be zero at this stage in the function.
            uint256 twos = denominator & (~denominator + 1);
            assembly {
                // Divide denominator by twos.
                denominator := div(denominator, twos)

                // Divide [prod1 prod0] by twos.
                prod0 := div(prod0, twos)

                // Flip twos such that it is 2^256 / twos. If twos is zero, then it becomes one.
                twos := add(div(sub(0, twos), twos), 1)
            }

            // Shift in bits from prod1 into prod0.
            prod0 |= prod1 * twos;

            // Invert denominator mod 2^256. Now that denominator is an odd number, it has an inverse modulo 2^256 such
            // that denominator * inv = 1 mod 2^256. Compute the inverse by starting with a seed that is correct for
            // four bits. That is, denominator * inv = 1 mod 2^4.
            uint256 inverse = (3 * denominator) ^ 2;

            // Use the Newton-Raphson iteration to improve the precision. Thanks to Hensel's lifting lemma, this also works
            // in modular arithmetic, doubling the correct bits in each step.
            inverse *= 2 - denominator * inverse; // inverse mod 2^8
            inverse *= 2 - denominator * inverse; // inverse mod 2^16
            inverse *= 2 - denominator * inverse; // inverse mod 2^32
            inverse *= 2 - denominator * inverse; // inverse mod 2^64
            inverse *= 2 - denominator * inverse; // inverse mod 2^128
            inverse *= 2 - denominator * inverse; // inverse mod 2^256

            // Because the division is now exact we can divide by multiplying with the modular inverse of denominator.
            // This will give us the correct result modulo 2^256. Since the preconditions guarantee that the outcome is
            // less than 2^256, this is the final result. We don't need to compute the high bits of the result and prod1
            // is no longer required.
            result = prod0 * inverse;
            return result;
        }
    }

    /**
     * @notice Calculates x * y / denominator with full precision, following the selected rounding direction.
     */
    function mulDiv(
        uint256 x,
        uint256 y,
        uint256 denominator,
        Rounding rounding
    ) internal pure returns (uint256) {
        uint256 result = mulDiv(x, y, denominator);
        if (rounding == Rounding.Up && mulmod(x, y, denominator) > 0) {
            result += 1;
        }
        return result;
    }

    /**
     * @dev Returns the square root of a number. If the number is not a perfect square, the value is rounded down.
     *
     * Inspired by Henry S. Warren, Jr.'s "Hacker's Delight" (Chapter 11).
     */
    function sqrt(uint256 a) internal pure returns (uint256) {
        if (a == 0) {
            return 0;
        }

        // For our first guess, we get the biggest power of 2 which is smaller than the square root of the target.
        //
        // We know that the "msb" (most significant bit) of our target number `a` is a power of 2 such that we have
        // `msb(a) <= a < 2*msb(a)`. This value can be written `msb(a)=2**k` with `k=log2(a)`.
        //
        // This can be rewritten `2**log2(a) <= a < 2**(log2(a) + 1)`
        // → `sqrt(2**k) <= sqrt(a) < sqrt(2**(k+1))`
        // → `2**(k/2) <= sqrt(a) < 2**((k+1)/2) <= 2**(k/2 + 1)`
        //
        // Consequently, `2**(log2(a) / 2)` is a good first approximation of `sqrt(a)` with at least 1 correct bit.
        uint256 result = 1 << (log2(a) >> 1);

        // At this point `result` is an estimation with one bit of precision. We know the true value is a uint128,
        // since it is the square root of a uint256. Newton's method converges quadratically (precision doubles at
        // every iteration). We thus need at most 7 iteration to turn our partial result with one bit of precision
        // into the expected uint128 result.
        unchecked {
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            return min(result, a / result);
        }
    }

    /**
     * @notice Calculates sqrt(a), following the selected rounding direction.
     */
    function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = sqrt(a);
            return result + (rounding == Rounding.Up && result * result < a ? 1 : 0);
        }
    }

    /**
     * @dev Return the log in base 2, rounded down, of a positive value.
     * Returns 0 if given 0.
     */
    function log2(uint256 value) internal pure returns (uint256) {
        uint256 result = 0;
        unchecked {
            if (value >> 128 > 0) {
                value >>= 128;
                result += 128;
            }
            if (value >> 64 > 0) {
                value >>= 64;
                result += 64;
            }
            if (value >> 32 > 0) {
                value >>= 32;
                result += 32;
            }
            if (value >> 16 > 0) {
                value >>= 16;
                result += 16;
            }
            if (value >> 8 > 0) {
                value >>= 8;
                result += 8;
            }
            if (value >> 4 > 0) {
                value >>= 4;
                result += 4;
            }
            if (value >> 2 > 0) {
                value >>= 2;
                result += 2;
            }
            if (value >> 1 > 0) {
                result += 1;
            }
        }
        return result;
    }

    /**
     * @dev Return the log in base 2, following the selected rounding direction, of a positive value.
     * Returns 0 if given 0.
     */
    function log2(uint256 value, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = log2(value);
            return result + (rounding == Rounding.Up && 1 << result < value ? 1 : 0);
        }
    }

    /**
     * @dev Return the log in base 10, rounded down, of a positive value.
     * Returns 0 if given 0.
     */
    function log10(uint256 value) internal pure returns (uint256) {
        uint256 result = 0;
        unchecked {
            if (value >= 10**64) {
                value /= 10**64;
                result += 64;
            }
            if (value >= 10**32) {
                value /= 10**32;
                result += 32;
            }
            if (value >= 10**16) {
                value /= 10**16;
                result += 16;
            }
            if (value >= 10**8) {
                value /= 10**8;
                result += 8;
            }
            if (value >= 10**4) {
                value /= 10**4;
                result += 4;
            }
            if (value >= 10**2) {
                value /= 10**2;
                result += 2;
            }
            if (value >= 10**1) {
                result += 1;
            }
        }
        return result;
    }

    /**
     * @dev Return the log in base 10, following the selected rounding direction, of a positive value.
     * Returns 0 if given 0.
     */
    function log10(uint256 value, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = log10(value);
            return result + (rounding == Rounding.Up && 10**result < value ? 1 : 0);
        }
    }

    /**
     * @dev Return the log in base 256, rounded down, of a positive value.
     * Returns 0 if given 0.
     *
     * Adding one to the result gives the number of pairs of hex symbols needed to represent `value` as a hex string.
     */
    function log256(uint256 value) internal pure returns (uint256) {
        uint256 result = 0;
        unchecked {
            if (value >> 128 > 0) {
                value >>= 128;
                result += 16;
            }
            if (value >> 64 > 0) {
                value >>= 64;
                result += 8;
            }
            if (value >> 32 > 0) {
                value >>= 32;
                result += 4;
            }
            if (value >> 16 > 0) {
                value >>= 16;
                result += 2;
            }
            if (value >> 8 > 0) {
                result += 1;
            }
        }
        return result;
    }

    /**
     * @dev Return the log in base 10, following the selected rounding direction, of a positive value.
     * Returns 0 if given 0.
     */
    function log256(uint256 value, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = log256(value);
            return result + (rounding == Rounding.Up && 1 << (result * 8) < value ? 1 : 0);
        }
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.13;

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: MIT
pragma solidity ^0.8.13;

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: MIT
pragma solidity ^0.8.13;

import {IOperatorFilterRegistry} from "./IOperatorFilterRegistry.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 {
    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 (address(OPERATOR_FILTER_REGISTRY).code.length > 0) {
            if (!OPERATOR_FILTER_REGISTRY.isOperatorAllowed(address(this), operator)) {
                revert OperatorNotAllowed(operator);
            }
        }
    }
}

// SPDX-License-Identifier: UNLICENSED
pragma solidity ^0.8.13;

import "ERC721A/ERC721A.sol";
import "openzeppelin/access/Ownable.sol";
import "openzeppelin/security/ReentrancyGuard.sol";
import "openzeppelin/utils/cryptography/ECDSA.sol";
import "openzeppelin/utils/Strings.sol";
import "operator-filter-registry/DefaultOperatorFilterer.sol";

error NotEnoughETH();
error SaleNotLive();
error NoContractCall();
error SaleStepNotActive();
error WrongSignature();
error NonExistentToken();
error OutOfSupply();
error OutOfSupplyForStep();
error AlreadyMintedWalletMaxForStep();
error WithdrawFailed();

contract Seiken is Ownable, ERC721A, ReentrancyGuard, DefaultOperatorFilterer {
    using ECDSA for bytes32;
    address public signer = 0x90F8bf6A479f320ead074411a4B0e7944Ea8c9C1;
    uint256 constant collectionSize = 1111;
    uint256 constant WL_price = 0.012 ether;
    uint256 public public_price = 0.02 ether;
    uint256 public VIP_time = 1672077600;
    uint256 public public_time = 1672079400;
    uint256 public WL_time = 1672083000;
    uint256 public VIP_spots_left = 111;
    uint256 public WL_spots_left = 250;
    uint256 public constant maxPerAddressDuringVIP = 2;
    uint256 public constant maxPerAddressDuringPublic = 5;
    uint256 public constant maxPerAddressDuringWL = 3;
    mapping(address => uint256) public VIPmint;
    mapping(address => uint256) public publicmint;
    mapping(address => uint256) public WLmint;

    string private baseURI = "ipfs://bafybeiaotxx547mgl7fsvmqdbrb7kkgtf2qmq7ulf274paugah2fy3nz3u/";

    modifier mintValidity() {
        if (block.timestamp < VIP_time) revert SaleNotLive();
        if (_totalMinted() >= collectionSize) revert OutOfSupply();
        _;
    }

    constructor() payable ERC721A("Seiken Labs" ,"SKLABS") {
        _mint(msg.sender, 1);
    }

    function saleStep() view public returns (uint256) {
        if (block.timestamp > VIP_time) {
            if (block.timestamp > public_time || VIP_spots_left == 0) {
                if (block.timestamp > WL_time || _totalMinted() > (750+(111-VIP_spots_left)) ) {
                    return 3;
                } else {
                    return 2;
                }
            } else {
                return 1;
            }
        } else {
            return 0;
        }
    }

    function VIP_mint(uint256 _quantity, bytes memory _signature) external nonReentrant mintValidity() {
        if(saleStep() != 1) revert SaleStepNotActive();
        if(VIP_spots_left < _quantity) revert OutOfSupplyForStep();
        if(recoverSigner(_signature) != signer) revert WrongSignature();
        if(VIPmint[msg.sender] + _quantity > maxPerAddressDuringVIP) revert AlreadyMintedWalletMaxForStep();
        VIPmint[msg.sender] += _quantity;
        _mint(msg.sender, _quantity);
        VIP_spots_left -= _quantity;
    }
    function public_mint(uint256 _quantity) external payable nonReentrant mintValidity() {
        if(saleStep() < 2) revert SaleStepNotActive();
        if(msg.value < public_price * _quantity) revert NotEnoughETH();
        if(publicmint[msg.sender] + _quantity > maxPerAddressDuringPublic) revert AlreadyMintedWalletMaxForStep();
        publicmint[msg.sender] += _quantity;
        _mint(msg.sender, _quantity);
    }
    function WL_mint(uint256 _quantity, bytes memory _signature) external payable nonReentrant mintValidity() {
        if(saleStep() != 3) revert SaleStepNotActive();
        if(WL_spots_left < _quantity) revert OutOfSupplyForStep();
        if(msg.value < WL_price * _quantity) revert NotEnoughETH();
        if(recoverSigner(_signature) != signer) revert WrongSignature();
        if(WLmint[msg.sender] + _quantity > maxPerAddressDuringWL) revert AlreadyMintedWalletMaxForStep();
        WLmint[msg.sender] += _quantity;
        _mint(msg.sender, _quantity);
        WL_spots_left -= _quantity;
    }

    function getMaxQuantityForUser() public view returns (uint256 maxQuantity){
        uint256 step = saleStep();
        if(step == 1){
            return maxPerAddressDuringVIP - VIPmint[msg.sender];
        } else if(step == 2){
            return maxPerAddressDuringPublic - publicmint[msg.sender];
        } else if(step == 3){
            return maxPerAddressDuringWL - WLmint[msg.sender];
        }
    }

    function tokenURI(uint256 _tokenId) public view virtual override returns (string memory) {
        if(_exists(_tokenId) == false) revert NonExistentToken();
        return bytes(baseURI).length > 0 ? string(abi.encodePacked(baseURI, Strings.toString(_tokenId),".json")) : "";
    }

    function setBaseURI(string memory _newBaseURI) external onlyOwner {
        baseURI = _newBaseURI;
    }

    function setSigner(address _signer) external onlyOwner {
        signer = _signer;
    }

   function setPublicPrice(uint256 _public_price) external onlyOwner {
        public_price = _public_price;
    }

    function setTimestamps(uint256 _VIP_time, uint256 _public_time, uint256 _WL_time) external onlyOwner{
        VIP_time = _VIP_time;
        public_time = _public_time;
        WL_time = _WL_time;
   }

    function recoverSigner(bytes memory _signature) internal view returns (address) {
        return (ECDSA.recover(ECDSA.toEthSignedMessageHash(keccak256(abi.encodePacked(msg.sender, uint8(saleStep())))), _signature));
    }

    function withdraw() external onlyOwner {
        (bool success, ) = msg.sender.call{ value: address(this).balance }("");
        if(success == false) revert WithdrawFailed();
    }

    function setApprovalForAll(address operator, bool approved) public override onlyAllowedOperatorApproval(operator) {
        super.setApprovalForAll(operator, approved);
    }

    function approve(address operator, uint256 tokenId) public override onlyAllowedOperatorApproval(operator) {
        super.approve(operator, tokenId);
    }

    function transferFrom(address from, address to, uint256 tokenId) public override onlyAllowedOperator(from) {
        super.transferFrom(from, to, tokenId);
    }

    function safeTransferFrom(address from, address to, uint256 tokenId) public override onlyAllowedOperator(from) {
        super.safeTransferFrom(from, to, tokenId);
    }

    function safeTransferFrom(address from, address to, uint256 tokenId, bytes memory data) public override onlyAllowedOperator(from) {
        super.safeTransferFrom(from, to, tokenId, data);
    }
}

{
  "remappings": [
    "ERC721A/=lib/ERC721A/contracts/",
    "ds-test/=lib/forge-std/lib/ds-test/src/",
    "erc4626-tests/=lib/operator-filter-registry/lib/openzeppelin-contracts/lib/erc4626-tests/",
    "forge-std/=lib/forge-std/src/",
    "openzeppelin-contracts-upgradeable/=lib/operator-filter-registry/lib/openzeppelin-contracts-upgradeable/contracts/",
    "openzeppelin-contracts/=lib/operator-filter-registry/lib/openzeppelin-contracts/contracts/",
    "openzeppelin/=lib/openzeppelin-contracts/contracts/",
    "operator-filter-registry/=lib/operator-filter-registry/src/"
  ],
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "metadata": {
    "bytecodeHash": "ipfs"
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "evmVersion": "london",
  "libraries": {}
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[],"stateMutability":"payable","type":"constructor"},{"inputs":[],"name":"AlreadyMintedWalletMaxForStep","type":"error"},{"inputs":[],"name":"ApprovalCallerNotOwnerNorApproved","type":"error"},{"inputs":[],"name":"ApprovalQueryForNonexistentToken","type":"error"},{"inputs":[],"name":"BalanceQueryForZeroAddress","type":"error"},{"inputs":[],"name":"MintERC2309QuantityExceedsLimit","type":"error"},{"inputs":[],"name":"MintToZeroAddress","type":"error"},{"inputs":[],"name":"MintZeroQuantity","type":"error"},{"inputs":[],"name":"NonExistentToken","type":"error"},{"inputs":[],"name":"NotEnoughETH","type":"error"},{"inputs":[{"internalType":"address","name":"operator","type":"address"}],"name":"OperatorNotAllowed","type":"error"},{"inputs":[],"name":"OutOfSupply","type":"error"},{"inputs":[],"name":"OutOfSupplyForStep","type":"error"},{"inputs":[],"name":"OwnerQueryForNonexistentToken","type":"error"},{"inputs":[],"name":"OwnershipNotInitializedForExtraData","type":"error"},{"inputs":[],"name":"SaleNotLive","type":"error"},{"inputs":[],"name":"SaleStepNotActive","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"},{"inputs":[],"name":"WithdrawFailed","type":"error"},{"inputs":[],"name":"WrongSignature","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":true,"internalType":"uint256","name":"fromTokenId","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"toTokenId","type":"uint256"},{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"}],"name":"ConsecutiveTransfer","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","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":"uint256","name":"_quantity","type":"uint256"},{"internalType":"bytes","name":"_signature","type":"bytes"}],"name":"VIP_mint","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"VIP_spots_left","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"VIP_time","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"VIPmint","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_quantity","type":"uint256"},{"internalType":"bytes","name":"_signature","type":"bytes"}],"name":"WL_mint","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"WL_spots_left","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"WL_time","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"WLmint","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"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":"getApproved","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getMaxQuantityForUser","outputs":[{"internalType":"uint256","name":"maxQuantity","type":"uint256"}],"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":[],"name":"maxPerAddressDuringPublic","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"maxPerAddressDuringVIP","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"maxPerAddressDuringWL","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"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":"_quantity","type":"uint256"}],"name":"public_mint","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"public_price","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"public_time","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"publicmint","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","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":[],"name":"saleStep","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","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":"_newBaseURI","type":"string"}],"name":"setBaseURI","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_public_price","type":"uint256"}],"name":"setPublicPrice","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_signer","type":"address"}],"name":"setSigner","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_VIP_time","type":"uint256"},{"internalType":"uint256","name":"_public_time","type":"uint256"},{"internalType":"uint256","name":"_WL_time","type":"uint256"}],"name":"setTimestamps","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"signer","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","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":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"withdraw","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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