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

pragma solidity ^0.8.0;

/// @author: @yungwknd
/// @artist: Molly McCutcheon

import "@openzeppelin/contracts/token/ERC721/extensions/ERC721Enumerable.sol";
import "@openzeppelin/contracts/token/ERC721/extensions/ERC721Burnable.sol";
import "@openzeppelin/contracts/token/ERC721/utils/ERC721Holder.sol";
import "@openzeppelin/contracts/token/ERC721/ERC721.sol";
import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/utils/cryptography/MerkleProof.sol";

contract YinYang is ERC721, ERC721Enumerable, ERC721Burnable, ERC721Holder, Ownable {
    uint public cost = 0.44 ether;
    mapping(uint => string) public tokenURIs;
    mapping(uint => uint) public pairs;
    string public placeHolderURI = "";
    bool public publicSale = false;
    uint public saleMints = 0;
    bytes32 public merkleRoot;
    uint public nextToken = 0;

    constructor() ERC721("YinYang", "YY") Ownable(_msgSender()) {}

    function supportsInterface(bytes4 interfaceId) public view override(ERC721, ERC721Enumerable) returns (bool) {
        return super.supportsInterface(interfaceId);
    }

    function setTokenURIs(string[] memory uris, uint[] memory tokenIds) public onlyOwner {
        require(uris.length == tokenIds.length, "Lengths don't match");
        for (uint i = 0; i < uris.length; i++) {
            tokenURIs[tokenIds[i]] = uris[i];
        }
    }

    function configure(bool _publicSale, uint _cost, string memory _placeHolderURI, bytes32 _merkleRoot) public onlyOwner {
        publicSale = _publicSale;
        cost = _cost;
        placeHolderURI = _placeHolderURI;
        merkleRoot = _merkleRoot;
    }

    function isAllowlisted(bytes32[] memory proof) public view returns(bool) {
        bytes32 leaf = keccak256(abi.encodePacked(msg.sender));
        return MerkleProof.verify(proof, merkleRoot, leaf);
    }

    function mint(bytes32[] memory proof) public payable {
        require(msg.value == cost, "Not enough ETH");
        require(publicSale || isAllowlisted(proof), "Not on allowlist");
        require(saleMints < 17, "No more tokens");
        _safeMint(msg.sender, nextToken);
        nextToken++;
        saleMints++;
    }

    function ownerMint(address to) public onlyOwner {
        _safeMint(to, nextToken);
        nextToken++;
        saleMints++;
    }

    function setPairs(uint[] memory tokenIds) public onlyOwner {
        for (uint i = 0; i < tokenIds.length; i+= 2) {
            pairs[tokenIds[i]] = tokenIds[i + 1];
            pairs[tokenIds[i+1]] = tokenIds[i];
        }
    }

    function tokenURI(uint256 tokenId)
        public
        view
        override(ERC721)
        returns (string memory)
    {
        return bytes(tokenURIs[tokenId]).length > 0 ? tokenURIs[tokenId] : placeHolderURI;
    }

    function _update(address to, uint256 tokenId, address auth)
        internal
        override(ERC721, ERC721Enumerable)
        returns (address)
    {
        return super._update(to, tokenId, auth);
    }

    function _increaseBalance(address account, uint128 value)
        internal
        override(ERC721, ERC721Enumerable)
    {
        super._increaseBalance(account, value);
    }

    function onERC721Received(
        address,
        address from,
        uint256 id,
        bytes memory
    ) public override returns(bytes4) {
        // If it's the first token in the pair, just hold it in the contract
        uint pairToken = pairs[id];

        if (ownerOf(pairToken) != address(this)) {
            return this.onERC721Received.selector;
        } else {
            burn(id);
            burn(pairToken);
            // If it's the second token in the pair, mint the complete token and burn both
            _safeMint(from, nextToken);
            nextToken++;
        }

        return this.onERC721Received.selector;
    }

    function recover(uint256 tokenId, address destination) public onlyOwner {
        IERC721(address(this)).transferFrom(address(this), destination, tokenId);
    }

    function withdraw(address receiver) public onlyOwner() {
        payable(receiver).transfer(address(this).balance);
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC721/extensions/ERC721Enumerable.sol)

pragma solidity ^0.8.20;

import {ERC721} from "../ERC721.sol";
import {IERC721Enumerable} from "./IERC721Enumerable.sol";
import {IERC165} from "../../../utils/introspection/ERC165.sol";

/**
 * @dev This implements an optional extension of {ERC721} defined in the EIP that adds enumerability
 * of all the token ids in the contract as well as all token ids owned by each account.
 *
 * CAUTION: `ERC721` extensions that implement custom `balanceOf` logic, such as `ERC721Consecutive`,
 * interfere with enumerability and should not be used together with `ERC721Enumerable`.
 */
abstract contract ERC721Enumerable is ERC721, IERC721Enumerable {
    mapping(address owner => mapping(uint256 index => uint256)) private _ownedTokens;
    mapping(uint256 tokenId => uint256) private _ownedTokensIndex;

    uint256[] private _allTokens;
    mapping(uint256 tokenId => uint256) private _allTokensIndex;

    /**
     * @dev An `owner`'s token query was out of bounds for `index`.
     *
     * NOTE: The owner being `address(0)` indicates a global out of bounds index.
     */
    error ERC721OutOfBoundsIndex(address owner, uint256 index);

    /**
     * @dev Batch mint is not allowed.
     */
    error ERC721EnumerableForbiddenBatchMint();

    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override(IERC165, ERC721) returns (bool) {
        return interfaceId == type(IERC721Enumerable).interfaceId || super.supportsInterface(interfaceId);
    }

    /**
     * @dev See {IERC721Enumerable-tokenOfOwnerByIndex}.
     */
    function tokenOfOwnerByIndex(address owner, uint256 index) public view virtual returns (uint256) {
        if (index >= balanceOf(owner)) {
            revert ERC721OutOfBoundsIndex(owner, index);
        }
        return _ownedTokens[owner][index];
    }

    /**
     * @dev See {IERC721Enumerable-totalSupply}.
     */
    function totalSupply() public view virtual returns (uint256) {
        return _allTokens.length;
    }

    /**
     * @dev See {IERC721Enumerable-tokenByIndex}.
     */
    function tokenByIndex(uint256 index) public view virtual returns (uint256) {
        if (index >= totalSupply()) {
            revert ERC721OutOfBoundsIndex(address(0), index);
        }
        return _allTokens[index];
    }

    /**
     * @dev See {ERC721-_update}.
     */
    function _update(address to, uint256 tokenId, address auth) internal virtual override returns (address) {
        address previousOwner = super._update(to, tokenId, auth);

        if (previousOwner == address(0)) {
            _addTokenToAllTokensEnumeration(tokenId);
        } else if (previousOwner != to) {
            _removeTokenFromOwnerEnumeration(previousOwner, tokenId);
        }
        if (to == address(0)) {
            _removeTokenFromAllTokensEnumeration(tokenId);
        } else if (previousOwner != to) {
            _addTokenToOwnerEnumeration(to, tokenId);
        }

        return previousOwner;
    }

    /**
     * @dev Private function to add a token to this extension's ownership-tracking data structures.
     * @param to address representing the new owner of the given token ID
     * @param tokenId uint256 ID of the token to be added to the tokens list of the given address
     */
    function _addTokenToOwnerEnumeration(address to, uint256 tokenId) private {
        uint256 length = balanceOf(to) - 1;
        _ownedTokens[to][length] = tokenId;
        _ownedTokensIndex[tokenId] = length;
    }

    /**
     * @dev Private function to add a token to this extension's token tracking data structures.
     * @param tokenId uint256 ID of the token to be added to the tokens list
     */
    function _addTokenToAllTokensEnumeration(uint256 tokenId) private {
        _allTokensIndex[tokenId] = _allTokens.length;
        _allTokens.push(tokenId);
    }

    /**
     * @dev Private function to remove a token from this extension's ownership-tracking data structures. Note that
     * while the token is not assigned a new owner, the `_ownedTokensIndex` mapping is _not_ updated: this allows for
     * gas optimizations e.g. when performing a transfer operation (avoiding double writes).
     * This has O(1) time complexity, but alters the order of the _ownedTokens array.
     * @param from address representing the previous owner of the given token ID
     * @param tokenId uint256 ID of the token to be removed from the tokens list of the given address
     */
    function _removeTokenFromOwnerEnumeration(address from, uint256 tokenId) private {
        // To prevent a gap in from's tokens array, we store the last token in the index of the token to delete, and
        // then delete the last slot (swap and pop).

        uint256 lastTokenIndex = balanceOf(from);
        uint256 tokenIndex = _ownedTokensIndex[tokenId];

        // When the token to delete is the last token, the swap operation is unnecessary
        if (tokenIndex != lastTokenIndex) {
            uint256 lastTokenId = _ownedTokens[from][lastTokenIndex];

            _ownedTokens[from][tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token
            _ownedTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index
        }

        // This also deletes the contents at the last position of the array
        delete _ownedTokensIndex[tokenId];
        delete _ownedTokens[from][lastTokenIndex];
    }

    /**
     * @dev Private function to remove a token from this extension's token tracking data structures.
     * This has O(1) time complexity, but alters the order of the _allTokens array.
     * @param tokenId uint256 ID of the token to be removed from the tokens list
     */
    function _removeTokenFromAllTokensEnumeration(uint256 tokenId) private {
        // To prevent a gap in the tokens array, we store the last token in the index of the token to delete, and
        // then delete the last slot (swap and pop).

        uint256 lastTokenIndex = _allTokens.length - 1;
        uint256 tokenIndex = _allTokensIndex[tokenId];

        // When the token to delete is the last token, the swap operation is unnecessary. However, since this occurs so
        // rarely (when the last minted token is burnt) that we still do the swap here to avoid the gas cost of adding
        // an 'if' statement (like in _removeTokenFromOwnerEnumeration)
        uint256 lastTokenId = _allTokens[lastTokenIndex];

        _allTokens[tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token
        _allTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index

        // This also deletes the contents at the last position of the array
        delete _allTokensIndex[tokenId];
        _allTokens.pop();
    }

    /**
     * See {ERC721-_increaseBalance}. We need that to account tokens that were minted in batch
     */
    function _increaseBalance(address account, uint128 amount) internal virtual override {
        if (amount > 0) {
            revert ERC721EnumerableForbiddenBatchMint();
        }
        super._increaseBalance(account, amount);
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC721/extensions/ERC721Burnable.sol)

pragma solidity ^0.8.20;

import {ERC721} from "../ERC721.sol";
import {Context} from "../../../utils/Context.sol";

/**
 * @title ERC721 Burnable Token
 * @dev ERC721 Token that can be burned (destroyed).
 */
abstract contract ERC721Burnable is Context, ERC721 {
    /**
     * @dev Burns `tokenId`. See {ERC721-_burn}.
     *
     * Requirements:
     *
     * - The caller must own `tokenId` or be an approved operator.
     */
    function burn(uint256 tokenId) public virtual {
        // Setting an "auth" arguments enables the `_isAuthorized` check which verifies that the token exists
        // (from != 0). Therefore, it is not needed to verify that the return value is not 0 here.
        _update(address(0), tokenId, _msgSender());
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC721/utils/ERC721Holder.sol)

pragma solidity ^0.8.20;

import {IERC721Receiver} from "../IERC721Receiver.sol";

/**
 * @dev Implementation of the {IERC721Receiver} interface.
 *
 * Accepts all token transfers.
 * Make sure the contract is able to use its token with {IERC721-safeTransferFrom}, {IERC721-approve} or
 * {IERC721-setApprovalForAll}.
 */
abstract contract ERC721Holder is IERC721Receiver {
    /**
     * @dev See {IERC721Receiver-onERC721Received}.
     *
     * Always returns `IERC721Receiver.onERC721Received.selector`.
     */
    function onERC721Received(address, address, uint256, bytes memory) public virtual returns (bytes4) {
        return this.onERC721Received.selector;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC721/ERC721.sol)

pragma solidity ^0.8.20;

import {IERC721} from "./IERC721.sol";
import {IERC721Receiver} from "./IERC721Receiver.sol";
import {IERC721Metadata} from "./extensions/IERC721Metadata.sol";
import {Context} from "../../utils/Context.sol";
import {Strings} from "../../utils/Strings.sol";
import {IERC165, ERC165} from "../../utils/introspection/ERC165.sol";
import {IERC721Errors} from "../../interfaces/draft-IERC6093.sol";

/**
 * @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including
 * the Metadata extension, but not including the Enumerable extension, which is available separately as
 * {ERC721Enumerable}.
 */
abstract contract ERC721 is Context, ERC165, IERC721, IERC721Metadata, IERC721Errors {
    using Strings for uint256;

    // Token name
    string private _name;

    // Token symbol
    string private _symbol;

    mapping(uint256 tokenId => address) private _owners;

    mapping(address owner => uint256) private _balances;

    mapping(uint256 tokenId => address) private _tokenApprovals;

    mapping(address owner => mapping(address operator => bool)) private _operatorApprovals;

    /**
     * @dev Initializes the contract by setting a `name` and a `symbol` to the token collection.
     */
    constructor(string memory name_, string memory symbol_) {
        _name = name_;
        _symbol = symbol_;
    }

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

    /**
     * @dev See {IERC721-balanceOf}.
     */
    function balanceOf(address owner) public view virtual returns (uint256) {
        if (owner == address(0)) {
            revert ERC721InvalidOwner(address(0));
        }
        return _balances[owner];
    }

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

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

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

    /**
     * @dev See {IERC721Metadata-tokenURI}.
     */
    function tokenURI(uint256 tokenId) public view virtual returns (string memory) {
        _requireOwned(tokenId);

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

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

    /**
     * @dev See {IERC721-approve}.
     */
    function approve(address to, uint256 tokenId) public virtual {
        _approve(to, tokenId, _msgSender());
    }

    /**
     * @dev See {IERC721-getApproved}.
     */
    function getApproved(uint256 tokenId) public view virtual returns (address) {
        _requireOwned(tokenId);

        return _getApproved(tokenId);
    }

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

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

    /**
     * @dev See {IERC721-transferFrom}.
     */
    function transferFrom(address from, address to, uint256 tokenId) public virtual {
        if (to == address(0)) {
            revert ERC721InvalidReceiver(address(0));
        }
        // Setting an "auth" arguments enables the `_isAuthorized` check which verifies that the token exists
        // (from != 0). Therefore, it is not needed to verify that the return value is not 0 here.
        address previousOwner = _update(to, tokenId, _msgSender());
        if (previousOwner != from) {
            revert ERC721IncorrectOwner(from, tokenId, previousOwner);
        }
    }

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

    /**
     * @dev See {IERC721-safeTransferFrom}.
     */
    function safeTransferFrom(address from, address to, uint256 tokenId, bytes memory data) public virtual {
        transferFrom(from, to, tokenId);
        _checkOnERC721Received(from, to, tokenId, data);
    }

    /**
     * @dev Returns the owner of the `tokenId`. Does NOT revert if token doesn't exist
     *
     * IMPORTANT: Any overrides to this function that add ownership of tokens not tracked by the
     * core ERC721 logic MUST be matched with the use of {_increaseBalance} to keep balances
     * consistent with ownership. The invariant to preserve is that for any address `a` the value returned by
     * `balanceOf(a)` must be equal to the number of tokens such that `_ownerOf(tokenId)` is `a`.
     */
    function _ownerOf(uint256 tokenId) internal view virtual returns (address) {
        return _owners[tokenId];
    }

    /**
     * @dev Returns the approved address for `tokenId`. Returns 0 if `tokenId` is not minted.
     */
    function _getApproved(uint256 tokenId) internal view virtual returns (address) {
        return _tokenApprovals[tokenId];
    }

    /**
     * @dev Returns whether `spender` is allowed to manage `owner`'s tokens, or `tokenId` in
     * particular (ignoring whether it is owned by `owner`).
     *
     * WARNING: This function assumes that `owner` is the actual owner of `tokenId` and does not verify this
     * assumption.
     */
    function _isAuthorized(address owner, address spender, uint256 tokenId) internal view virtual returns (bool) {
        return
            spender != address(0) &&
            (owner == spender || isApprovedForAll(owner, spender) || _getApproved(tokenId) == spender);
    }

    /**
     * @dev Checks if `spender` can operate on `tokenId`, assuming the provided `owner` is the actual owner.
     * Reverts if `spender` does not have approval from the provided `owner` for the given token or for all its assets
     * the `spender` for the specific `tokenId`.
     *
     * WARNING: This function assumes that `owner` is the actual owner of `tokenId` and does not verify this
     * assumption.
     */
    function _checkAuthorized(address owner, address spender, uint256 tokenId) internal view virtual {
        if (!_isAuthorized(owner, spender, tokenId)) {
            if (owner == address(0)) {
                revert ERC721NonexistentToken(tokenId);
            } else {
                revert ERC721InsufficientApproval(spender, tokenId);
            }
        }
    }

    /**
     * @dev Unsafe write access to the balances, used by extensions that "mint" tokens using an {ownerOf} override.
     *
     * NOTE: the value is limited to type(uint128).max. This protect against _balance overflow. It is unrealistic that
     * a uint256 would ever overflow from increments when these increments are bounded to uint128 values.
     *
     * WARNING: Increasing an account's balance using this function tends to be paired with an override of the
     * {_ownerOf} function to resolve the ownership of the corresponding tokens so that balances and ownership
     * remain consistent with one another.
     */
    function _increaseBalance(address account, uint128 value) internal virtual {
        unchecked {
            _balances[account] += value;
        }
    }

    /**
     * @dev Transfers `tokenId` from its current owner to `to`, or alternatively mints (or burns) if the current owner
     * (or `to`) is the zero address. Returns the owner of the `tokenId` before the update.
     *
     * The `auth` argument is optional. If the value passed is non 0, then this function will check that
     * `auth` is either the owner of the token, or approved to operate on the token (by the owner).
     *
     * Emits a {Transfer} event.
     *
     * NOTE: If overriding this function in a way that tracks balances, see also {_increaseBalance}.
     */
    function _update(address to, uint256 tokenId, address auth) internal virtual returns (address) {
        address from = _ownerOf(tokenId);

        // Perform (optional) operator check
        if (auth != address(0)) {
            _checkAuthorized(from, auth, tokenId);
        }

        // Execute the update
        if (from != address(0)) {
            // Clear approval. No need to re-authorize or emit the Approval event
            _approve(address(0), tokenId, address(0), false);

            unchecked {
                _balances[from] -= 1;
            }
        }

        if (to != address(0)) {
            unchecked {
                _balances[to] += 1;
            }
        }

        _owners[tokenId] = to;

        emit Transfer(from, to, tokenId);

        return from;
    }

    /**
     * @dev Mints `tokenId` and transfers it to `to`.
     *
     * WARNING: Usage of this method is discouraged, use {_safeMint} whenever possible
     *
     * Requirements:
     *
     * - `tokenId` must not exist.
     * - `to` cannot be the zero address.
     *
     * Emits a {Transfer} event.
     */
    function _mint(address to, uint256 tokenId) internal {
        if (to == address(0)) {
            revert ERC721InvalidReceiver(address(0));
        }
        address previousOwner = _update(to, tokenId, address(0));
        if (previousOwner != address(0)) {
            revert ERC721InvalidSender(address(0));
        }
    }

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

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

    /**
     * @dev Destroys `tokenId`.
     * The approval is cleared when the token is burned.
     * This is an internal function that does not check if the sender is authorized to operate on the token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     *
     * Emits a {Transfer} event.
     */
    function _burn(uint256 tokenId) internal {
        address previousOwner = _update(address(0), tokenId, address(0));
        if (previousOwner == address(0)) {
            revert ERC721NonexistentToken(tokenId);
        }
    }

    /**
     * @dev Transfers `tokenId` from `from` to `to`.
     *  As opposed to {transferFrom}, this imposes no restrictions on msg.sender.
     *
     * Requirements:
     *
     * - `to` cannot be the zero address.
     * - `tokenId` token must be owned by `from`.
     *
     * Emits a {Transfer} event.
     */
    function _transfer(address from, address to, uint256 tokenId) internal {
        if (to == address(0)) {
            revert ERC721InvalidReceiver(address(0));
        }
        address previousOwner = _update(to, tokenId, address(0));
        if (previousOwner == address(0)) {
            revert ERC721NonexistentToken(tokenId);
        } else if (previousOwner != from) {
            revert ERC721IncorrectOwner(from, tokenId, previousOwner);
        }
    }

    /**
     * @dev Safely transfers `tokenId` token from `from` to `to`, checking that contract recipients
     * are aware of the ERC721 standard to prevent tokens from being forever locked.
     *
     * `data` is additional data, it has no specified format and it is sent in call to `to`.
     *
     * This internal function is like {safeTransferFrom} in the sense that it invokes
     * {IERC721Receiver-onERC721Received} on the receiver, and can be used to e.g.
     * implement alternative mechanisms to perform token transfer, such as signature-based.
     *
     * Requirements:
     *
     * - `tokenId` token must exist and be owned by `from`.
     * - `to` cannot be the zero address.
     * - `from` cannot be the zero address.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function _safeTransfer(address from, address to, uint256 tokenId) internal {
        _safeTransfer(from, to, tokenId, "");
    }

    /**
     * @dev Same as {xref-ERC721-_safeTransfer-address-address-uint256-}[`_safeTransfer`], with an additional `data` parameter which is
     * forwarded in {IERC721Receiver-onERC721Received} to contract recipients.
     */
    function _safeTransfer(address from, address to, uint256 tokenId, bytes memory data) internal virtual {
        _transfer(from, to, tokenId);
        _checkOnERC721Received(from, to, tokenId, data);
    }

    /**
     * @dev Approve `to` to operate on `tokenId`
     *
     * The `auth` argument is optional. If the value passed is non 0, then this function will check that `auth` is
     * either the owner of the token, or approved to operate on all tokens held by this owner.
     *
     * Emits an {Approval} event.
     *
     * Overrides to this logic should be done to the variant with an additional `bool emitEvent` argument.
     */
    function _approve(address to, uint256 tokenId, address auth) internal {
        _approve(to, tokenId, auth, true);
    }

    /**
     * @dev Variant of `_approve` with an optional flag to enable or disable the {Approval} event. The event is not
     * emitted in the context of transfers.
     */
    function _approve(address to, uint256 tokenId, address auth, bool emitEvent) internal virtual {
        // Avoid reading the owner unless necessary
        if (emitEvent || auth != address(0)) {
            address owner = _requireOwned(tokenId);

            // We do not use _isAuthorized because single-token approvals should not be able to call approve
            if (auth != address(0) && owner != auth && !isApprovedForAll(owner, auth)) {
                revert ERC721InvalidApprover(auth);
            }

            if (emitEvent) {
                emit Approval(owner, to, tokenId);
            }
        }

        _tokenApprovals[tokenId] = to;
    }

    /**
     * @dev Approve `operator` to operate on all of `owner` tokens
     *
     * Requirements:
     * - operator can't be the address zero.
     *
     * Emits an {ApprovalForAll} event.
     */
    function _setApprovalForAll(address owner, address operator, bool approved) internal virtual {
        if (operator == address(0)) {
            revert ERC721InvalidOperator(operator);
        }
        _operatorApprovals[owner][operator] = approved;
        emit ApprovalForAll(owner, operator, approved);
    }

    /**
     * @dev Reverts if the `tokenId` doesn't have a current owner (it hasn't been minted, or it has been burned).
     * Returns the owner.
     *
     * Overrides to ownership logic should be done to {_ownerOf}.
     */
    function _requireOwned(uint256 tokenId) internal view returns (address) {
        address owner = _ownerOf(tokenId);
        if (owner == address(0)) {
            revert ERC721NonexistentToken(tokenId);
        }
        return owner;
    }

    /**
     * @dev Private function to invoke {IERC721Receiver-onERC721Received} on a target address. This will revert if the
     * recipient doesn't accept the token transfer. The call is not executed if the target address is not a contract.
     *
     * @param from address representing the previous owner of the given token ID
     * @param to target address that will receive the tokens
     * @param tokenId uint256 ID of the token to be transferred
     * @param data bytes optional data to send along with the call
     */
    function _checkOnERC721Received(address from, address to, uint256 tokenId, bytes memory data) private {
        if (to.code.length > 0) {
            try IERC721Receiver(to).onERC721Received(_msgSender(), from, tokenId, data) returns (bytes4 retval) {
                if (retval != IERC721Receiver.onERC721Received.selector) {
                    revert ERC721InvalidReceiver(to);
                }
            } catch (bytes memory reason) {
                if (reason.length == 0) {
                    revert ERC721InvalidReceiver(to);
                } else {
                    /// @solidity memory-safe-assembly
                    assembly {
                        revert(add(32, reason), mload(reason))
                    }
                }
            }
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (access/Ownable.sol)

pragma solidity ^0.8.20;

import {Context} from "../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.
 *
 * The initial owner is set to the address provided by the deployer. 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;

    /**
     * @dev The caller account is not authorized to perform an operation.
     */
    error OwnableUnauthorizedAccount(address account);

    /**
     * @dev The owner is not a valid owner account. (eg. `address(0)`)
     */
    error OwnableInvalidOwner(address owner);

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

    /**
     * @dev Initializes the contract setting the address provided by the deployer as the initial owner.
     */
    constructor(address initialOwner) {
        if (initialOwner == address(0)) {
            revert OwnableInvalidOwner(address(0));
        }
        _transferOwnership(initialOwner);
    }

    /**
     * @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 {
        if (owner() != _msgSender()) {
            revert OwnableUnauthorizedAccount(_msgSender());
        }
    }

    /**
     * @dev Leaves the contract without owner. It will not be possible to call
     * `onlyOwner` functions. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby disabling 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 {
        if (newOwner == address(0)) {
            revert OwnableInvalidOwner(address(0));
        }
        _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 v5.0.0) (utils/cryptography/MerkleProof.sol)

pragma solidity ^0.8.20;

/**
 * @dev These functions deal with verification of Merkle Tree proofs.
 *
 * The tree and the proofs can be generated using our
 * https://github.com/OpenZeppelin/merkle-tree[JavaScript library].
 * You will find a quickstart guide in the readme.
 *
 * WARNING: You should avoid using leaf values that are 64 bytes long prior to
 * hashing, or use a hash function other than keccak256 for hashing leaves.
 * This is because the concatenation of a sorted pair of internal nodes in
 * the Merkle tree could be reinterpreted as a leaf value.
 * OpenZeppelin's JavaScript library generates Merkle trees that are safe
 * against this attack out of the box.
 */
library MerkleProof {
    /**
     *@dev The multiproof provided is not valid.
     */
    error MerkleProofInvalidMultiproof();

    /**
     * @dev Returns true if a `leaf` can be proved to be a part of a Merkle tree
     * defined by `root`. For this, a `proof` must be provided, containing
     * sibling hashes on the branch from the leaf to the root of the tree. Each
     * pair of leaves and each pair of pre-images are assumed to be sorted.
     */
    function verify(bytes32[] memory proof, bytes32 root, bytes32 leaf) internal pure returns (bool) {
        return processProof(proof, leaf) == root;
    }

    /**
     * @dev Calldata version of {verify}
     */
    function verifyCalldata(bytes32[] calldata proof, bytes32 root, bytes32 leaf) internal pure returns (bool) {
        return processProofCalldata(proof, leaf) == root;
    }

    /**
     * @dev Returns the rebuilt hash obtained by traversing a Merkle tree up
     * from `leaf` using `proof`. A `proof` is valid if and only if the rebuilt
     * hash matches the root of the tree. When processing the proof, the pairs
     * of leafs & pre-images are assumed to be sorted.
     */
    function processProof(bytes32[] memory proof, bytes32 leaf) internal pure returns (bytes32) {
        bytes32 computedHash = leaf;
        for (uint256 i = 0; i < proof.length; i++) {
            computedHash = _hashPair(computedHash, proof[i]);
        }
        return computedHash;
    }

    /**
     * @dev Calldata version of {processProof}
     */
    function processProofCalldata(bytes32[] calldata proof, bytes32 leaf) internal pure returns (bytes32) {
        bytes32 computedHash = leaf;
        for (uint256 i = 0; i < proof.length; i++) {
            computedHash = _hashPair(computedHash, proof[i]);
        }
        return computedHash;
    }

    /**
     * @dev Returns true if the `leaves` can be simultaneously proven to be a part of a Merkle tree defined by
     * `root`, according to `proof` and `proofFlags` as described in {processMultiProof}.
     *
     * CAUTION: Not all Merkle trees admit multiproofs. See {processMultiProof} for details.
     */
    function multiProofVerify(
        bytes32[] memory proof,
        bool[] memory proofFlags,
        bytes32 root,
        bytes32[] memory leaves
    ) internal pure returns (bool) {
        return processMultiProof(proof, proofFlags, leaves) == root;
    }

    /**
     * @dev Calldata version of {multiProofVerify}
     *
     * CAUTION: Not all Merkle trees admit multiproofs. See {processMultiProof} for details.
     */
    function multiProofVerifyCalldata(
        bytes32[] calldata proof,
        bool[] calldata proofFlags,
        bytes32 root,
        bytes32[] memory leaves
    ) internal pure returns (bool) {
        return processMultiProofCalldata(proof, proofFlags, leaves) == root;
    }

    /**
     * @dev Returns the root of a tree reconstructed from `leaves` and sibling nodes in `proof`. The reconstruction
     * proceeds by incrementally reconstructing all inner nodes by combining a leaf/inner node with either another
     * leaf/inner node or a proof sibling node, depending on whether each `proofFlags` item is true or false
     * respectively.
     *
     * CAUTION: Not all Merkle trees admit multiproofs. To use multiproofs, it is sufficient to ensure that: 1) the tree
     * is complete (but not necessarily perfect), 2) the leaves to be proven are in the opposite order they are in the
     * tree (i.e., as seen from right to left starting at the deepest layer and continuing at the next layer).
     */
    function processMultiProof(
        bytes32[] memory proof,
        bool[] memory proofFlags,
        bytes32[] memory leaves
    ) internal pure returns (bytes32 merkleRoot) {
        // This function rebuilds the root hash by traversing the tree up from the leaves. The root is rebuilt by
        // consuming and producing values on a queue. The queue starts with the `leaves` array, then goes onto the
        // `hashes` array. At the end of the process, the last hash in the `hashes` array should contain the root of
        // the Merkle tree.
        uint256 leavesLen = leaves.length;
        uint256 proofLen = proof.length;
        uint256 totalHashes = proofFlags.length;

        // Check proof validity.
        if (leavesLen + proofLen != totalHashes + 1) {
            revert MerkleProofInvalidMultiproof();
        }

        // The xxxPos values are "pointers" to the next value to consume in each array. All accesses are done using
        // `xxx[xxxPos++]`, which return the current value and increment the pointer, thus mimicking a queue's "pop".
        bytes32[] memory hashes = new bytes32[](totalHashes);
        uint256 leafPos = 0;
        uint256 hashPos = 0;
        uint256 proofPos = 0;
        // At each step, we compute the next hash using two values:
        // - a value from the "main queue". If not all leaves have been consumed, we get the next leaf, otherwise we
        //   get the next hash.
        // - depending on the flag, either another value from the "main queue" (merging branches) or an element from the
        //   `proof` array.
        for (uint256 i = 0; i < totalHashes; i++) {
            bytes32 a = leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++];
            bytes32 b = proofFlags[i]
                ? (leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++])
                : proof[proofPos++];
            hashes[i] = _hashPair(a, b);
        }

        if (totalHashes > 0) {
            if (proofPos != proofLen) {
                revert MerkleProofInvalidMultiproof();
            }
            unchecked {
                return hashes[totalHashes - 1];
            }
        } else if (leavesLen > 0) {
            return leaves[0];
        } else {
            return proof[0];
        }
    }

    /**
     * @dev Calldata version of {processMultiProof}.
     *
     * CAUTION: Not all Merkle trees admit multiproofs. See {processMultiProof} for details.
     */
    function processMultiProofCalldata(
        bytes32[] calldata proof,
        bool[] calldata proofFlags,
        bytes32[] memory leaves
    ) internal pure returns (bytes32 merkleRoot) {
        // This function rebuilds the root hash by traversing the tree up from the leaves. The root is rebuilt by
        // consuming and producing values on a queue. The queue starts with the `leaves` array, then goes onto the
        // `hashes` array. At the end of the process, the last hash in the `hashes` array should contain the root of
        // the Merkle tree.
        uint256 leavesLen = leaves.length;
        uint256 proofLen = proof.length;
        uint256 totalHashes = proofFlags.length;

        // Check proof validity.
        if (leavesLen + proofLen != totalHashes + 1) {
            revert MerkleProofInvalidMultiproof();
        }

        // The xxxPos values are "pointers" to the next value to consume in each array. All accesses are done using
        // `xxx[xxxPos++]`, which return the current value and increment the pointer, thus mimicking a queue's "pop".
        bytes32[] memory hashes = new bytes32[](totalHashes);
        uint256 leafPos = 0;
        uint256 hashPos = 0;
        uint256 proofPos = 0;
        // At each step, we compute the next hash using two values:
        // - a value from the "main queue". If not all leaves have been consumed, we get the next leaf, otherwise we
        //   get the next hash.
        // - depending on the flag, either another value from the "main queue" (merging branches) or an element from the
        //   `proof` array.
        for (uint256 i = 0; i < totalHashes; i++) {
            bytes32 a = leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++];
            bytes32 b = proofFlags[i]
                ? (leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++])
                : proof[proofPos++];
            hashes[i] = _hashPair(a, b);
        }

        if (totalHashes > 0) {
            if (proofPos != proofLen) {
                revert MerkleProofInvalidMultiproof();
            }
            unchecked {
                return hashes[totalHashes - 1];
            }
        } else if (leavesLen > 0) {
            return leaves[0];
        } else {
            return proof[0];
        }
    }

    /**
     * @dev Sorts the pair (a, b) and hashes the result.
     */
    function _hashPair(bytes32 a, bytes32 b) private pure returns (bytes32) {
        return a < b ? _efficientHash(a, b) : _efficientHash(b, a);
    }

    /**
     * @dev Implementation of keccak256(abi.encode(a, b)) that doesn't allocate or expand memory.
     */
    function _efficientHash(bytes32 a, bytes32 b) private pure returns (bytes32 value) {
        /// @solidity memory-safe-assembly
        assembly {
            mstore(0x00, a)
            mstore(0x20, b)
            value := keccak256(0x00, 0x40)
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC721/extensions/IERC721Enumerable.sol)

pragma solidity ^0.8.20;

import {IERC721} from "../IERC721.sol";

/**
 * @title ERC-721 Non-Fungible Token Standard, optional enumeration extension
 * @dev See https://eips.ethereum.org/EIPS/eip-721
 */
interface IERC721Enumerable is IERC721 {
    /**
     * @dev Returns the total amount of tokens stored by the contract.
     */
    function totalSupply() external view returns (uint256);

    /**
     * @dev Returns a token ID owned by `owner` at a given `index` of its token list.
     * Use along with {balanceOf} to enumerate all of ``owner``'s tokens.
     */
    function tokenOfOwnerByIndex(address owner, uint256 index) external view returns (uint256);

    /**
     * @dev Returns a token ID at a given `index` of all the tokens stored by the contract.
     * Use along with {totalSupply} to enumerate all tokens.
     */
    function tokenByIndex(uint256 index) external view returns (uint256);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/introspection/ERC165.sol)

pragma solidity ^0.8.20;

import {IERC165} from "./IERC165.sol";

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

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/Context.sol)

pragma solidity ^0.8.20;

/**
 * @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 v5.0.0) (token/ERC721/IERC721Receiver.sol)

pragma solidity ^0.8.20;

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

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC721/IERC721.sol)

pragma solidity ^0.8.20;

import {IERC165} from "../../utils/introspection/IERC165.sol";

/**
 * @dev Required interface of an ERC721 compliant contract.
 */
interface IERC721 is IERC165 {
    /**
     * @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`.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must exist and be owned by `from`.
     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon
     *   a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function safeTransferFrom(address from, address to, uint256 tokenId, bytes calldata data) external;

    /**
     * @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 have been allowed to move this token by either {approve} or
     *   {setApprovalForAll}.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon
     *   a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function safeTransferFrom(address from, address to, uint256 tokenId) external;

    /**
     * @dev Transfers `tokenId` token from `from` to `to`.
     *
     * WARNING: Note that the caller is responsible to confirm that the recipient is capable of receiving ERC721
     * or else they may be permanently lost. Usage of {safeTransferFrom} prevents loss, though the caller must
     * understand this adds an external call which potentially creates a reentrancy vulnerability.
     *
     * 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 address zero.
     *
     * 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);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC721/extensions/IERC721Metadata.sol)

pragma solidity ^0.8.20;

import {IERC721} from "../IERC721.sol";

/**
 * @title ERC-721 Non-Fungible Token Standard, optional metadata extension
 * @dev See https://eips.ethereum.org/EIPS/eip-721
 */
interface IERC721Metadata is IERC721 {
    /**
     * @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);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/Strings.sol)

pragma solidity ^0.8.20;

import {Math} from "./math/Math.sol";
import {SignedMath} from "./math/SignedMath.sol";

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

    /**
     * @dev The `value` string doesn't fit in the specified `length`.
     */
    error StringsInsufficientHexLength(uint256 value, uint256 length);

    /**
     * @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), HEX_DIGITS))
                }
                value /= 10;
                if (value == 0) break;
            }
            return buffer;
        }
    }

    /**
     * @dev Converts a `int256` to its ASCII `string` decimal representation.
     */
    function toStringSigned(int256 value) internal pure returns (string memory) {
        return string.concat(value < 0 ? "-" : "", toString(SignedMath.abs(value)));
    }

    /**
     * @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) {
        uint256 localValue = value;
        bytes memory buffer = new bytes(2 * length + 2);
        buffer[0] = "0";
        buffer[1] = "x";
        for (uint256 i = 2 * length + 1; i > 1; --i) {
            buffer[i] = HEX_DIGITS[localValue & 0xf];
            localValue >>= 4;
        }
        if (localValue != 0) {
            revert StringsInsufficientHexLength(value, length);
        }
        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);
    }

    /**
     * @dev Returns true if the two strings are equal.
     */
    function equal(string memory a, string memory b) internal pure returns (bool) {
        return bytes(a).length == bytes(b).length && keccak256(bytes(a)) == keccak256(bytes(b));
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (interfaces/draft-IERC6093.sol)
pragma solidity ^0.8.20;

/**
 * @dev Standard ERC20 Errors
 * Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC20 tokens.
 */
interface IERC20Errors {
    /**
     * @dev Indicates an error related to the current `balance` of a `sender`. Used in transfers.
     * @param sender Address whose tokens are being transferred.
     * @param balance Current balance for the interacting account.
     * @param needed Minimum amount required to perform a transfer.
     */
    error ERC20InsufficientBalance(address sender, uint256 balance, uint256 needed);

    /**
     * @dev Indicates a failure with the token `sender`. Used in transfers.
     * @param sender Address whose tokens are being transferred.
     */
    error ERC20InvalidSender(address sender);

    /**
     * @dev Indicates a failure with the token `receiver`. Used in transfers.
     * @param receiver Address to which tokens are being transferred.
     */
    error ERC20InvalidReceiver(address receiver);

    /**
     * @dev Indicates a failure with the `spender`’s `allowance`. Used in transfers.
     * @param spender Address that may be allowed to operate on tokens without being their owner.
     * @param allowance Amount of tokens a `spender` is allowed to operate with.
     * @param needed Minimum amount required to perform a transfer.
     */
    error ERC20InsufficientAllowance(address spender, uint256 allowance, uint256 needed);

    /**
     * @dev Indicates a failure with the `approver` of a token to be approved. Used in approvals.
     * @param approver Address initiating an approval operation.
     */
    error ERC20InvalidApprover(address approver);

    /**
     * @dev Indicates a failure with the `spender` to be approved. Used in approvals.
     * @param spender Address that may be allowed to operate on tokens without being their owner.
     */
    error ERC20InvalidSpender(address spender);
}

/**
 * @dev Standard ERC721 Errors
 * Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC721 tokens.
 */
interface IERC721Errors {
    /**
     * @dev Indicates that an address can't be an owner. For example, `address(0)` is a forbidden owner in EIP-20.
     * Used in balance queries.
     * @param owner Address of the current owner of a token.
     */
    error ERC721InvalidOwner(address owner);

    /**
     * @dev Indicates a `tokenId` whose `owner` is the zero address.
     * @param tokenId Identifier number of a token.
     */
    error ERC721NonexistentToken(uint256 tokenId);

    /**
     * @dev Indicates an error related to the ownership over a particular token. Used in transfers.
     * @param sender Address whose tokens are being transferred.
     * @param tokenId Identifier number of a token.
     * @param owner Address of the current owner of a token.
     */
    error ERC721IncorrectOwner(address sender, uint256 tokenId, address owner);

    /**
     * @dev Indicates a failure with the token `sender`. Used in transfers.
     * @param sender Address whose tokens are being transferred.
     */
    error ERC721InvalidSender(address sender);

    /**
     * @dev Indicates a failure with the token `receiver`. Used in transfers.
     * @param receiver Address to which tokens are being transferred.
     */
    error ERC721InvalidReceiver(address receiver);

    /**
     * @dev Indicates a failure with the `operator`’s approval. Used in transfers.
     * @param operator Address that may be allowed to operate on tokens without being their owner.
     * @param tokenId Identifier number of a token.
     */
    error ERC721InsufficientApproval(address operator, uint256 tokenId);

    /**
     * @dev Indicates a failure with the `approver` of a token to be approved. Used in approvals.
     * @param approver Address initiating an approval operation.
     */
    error ERC721InvalidApprover(address approver);

    /**
     * @dev Indicates a failure with the `operator` to be approved. Used in approvals.
     * @param operator Address that may be allowed to operate on tokens without being their owner.
     */
    error ERC721InvalidOperator(address operator);
}

/**
 * @dev Standard ERC1155 Errors
 * Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC1155 tokens.
 */
interface IERC1155Errors {
    /**
     * @dev Indicates an error related to the current `balance` of a `sender`. Used in transfers.
     * @param sender Address whose tokens are being transferred.
     * @param balance Current balance for the interacting account.
     * @param needed Minimum amount required to perform a transfer.
     * @param tokenId Identifier number of a token.
     */
    error ERC1155InsufficientBalance(address sender, uint256 balance, uint256 needed, uint256 tokenId);

    /**
     * @dev Indicates a failure with the token `sender`. Used in transfers.
     * @param sender Address whose tokens are being transferred.
     */
    error ERC1155InvalidSender(address sender);

    /**
     * @dev Indicates a failure with the token `receiver`. Used in transfers.
     * @param receiver Address to which tokens are being transferred.
     */
    error ERC1155InvalidReceiver(address receiver);

    /**
     * @dev Indicates a failure with the `operator`’s approval. Used in transfers.
     * @param operator Address that may be allowed to operate on tokens without being their owner.
     * @param owner Address of the current owner of a token.
     */
    error ERC1155MissingApprovalForAll(address operator, address owner);

    /**
     * @dev Indicates a failure with the `approver` of a token to be approved. Used in approvals.
     * @param approver Address initiating an approval operation.
     */
    error ERC1155InvalidApprover(address approver);

    /**
     * @dev Indicates a failure with the `operator` to be approved. Used in approvals.
     * @param operator Address that may be allowed to operate on tokens without being their owner.
     */
    error ERC1155InvalidOperator(address operator);

    /**
     * @dev Indicates an array length mismatch between ids and values in a safeBatchTransferFrom operation.
     * Used in batch transfers.
     * @param idsLength Length of the array of token identifiers
     * @param valuesLength Length of the array of token amounts
     */
    error ERC1155InvalidArrayLength(uint256 idsLength, uint256 valuesLength);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/introspection/IERC165.sol)

pragma solidity ^0.8.20;

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

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/math/Math.sol)

pragma solidity ^0.8.20;

/**
 * @dev Standard math utilities missing in the Solidity language.
 */
library Math {
    /**
     * @dev Muldiv operation overflow.
     */
    error MathOverflowedMulDiv();

    enum Rounding {
        Floor, // Toward negative infinity
        Ceil, // Toward positive infinity
        Trunc, // Toward zero
        Expand // Away from zero
    }

    /**
     * @dev Returns the addition of two unsigned integers, with an overflow flag.
     */
    function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            uint256 c = a + b;
            if (c < a) return (false, 0);
            return (true, c);
        }
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, with an overflow flag.
     */
    function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            if (b > a) return (false, 0);
            return (true, a - b);
        }
    }

    /**
     * @dev Returns the multiplication of two unsigned integers, with an overflow flag.
     */
    function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            // Gas optimization: this is cheaper than requiring 'a' not being zero, but the
            // benefit is lost if 'b' is also tested.
            // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
            if (a == 0) return (true, 0);
            uint256 c = a * b;
            if (c / a != b) return (false, 0);
            return (true, c);
        }
    }

    /**
     * @dev Returns the division of two unsigned integers, with a division by zero flag.
     */
    function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            if (b == 0) return (false, 0);
            return (true, a / b);
        }
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag.
     */
    function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            if (b == 0) return (false, 0);
            return (true, a % b);
        }
    }

    /**
     * @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 towards infinity instead
     * of rounding towards zero.
     */
    function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) {
        if (b == 0) {
            // Guarantee the same behavior as in a regular Solidity division.
            return a / b;
        }

        // (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 = x * y; // Least significant 256 bits of the product
            uint256 prod1; // Most significant 256 bits of the product
            assembly {
                let mm := mulmod(x, y, not(0))
                prod1 := sub(sub(mm, prod0), lt(mm, prod0))
            }

            // Handle non-overflow cases, 256 by 256 division.
            if (prod1 == 0) {
                // Solidity will revert if denominator == 0, unlike the div opcode on its own.
                // The surrounding unchecked block does not change this fact.
                // See https://docs.soliditylang.org/en/latest/control-structures.html#checked-or-unchecked-arithmetic.
                return prod0 / denominator;
            }

            // Make sure the result is less than 2^256. Also prevents denominator == 0.
            if (denominator <= prod1) {
                revert MathOverflowedMulDiv();
            }

            ///////////////////////////////////////////////
            // 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.

            uint256 twos = denominator & (0 - denominator);
            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 (unsignedRoundsUp(rounding) && 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
     * towards zero.
     *
     * 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 + (unsignedRoundsUp(rounding) && result * result < a ? 1 : 0);
        }
    }

    /**
     * @dev Return the log in base 2 of a positive value rounded towards zero.
     * 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 + (unsignedRoundsUp(rounding) && 1 << result < value ? 1 : 0);
        }
    }

    /**
     * @dev Return the log in base 10 of a positive value rounded towards zero.
     * 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 + (unsignedRoundsUp(rounding) && 10 ** result < value ? 1 : 0);
        }
    }

    /**
     * @dev Return the log in base 256 of a positive value rounded towards zero.
     * 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 256, 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 + (unsignedRoundsUp(rounding) && 1 << (result << 3) < value ? 1 : 0);
        }
    }

    /**
     * @dev Returns whether a provided rounding mode is considered rounding up for unsigned integers.
     */
    function unsignedRoundsUp(Rounding rounding) internal pure returns (bool) {
        return uint8(rounding) % 2 == 1;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/math/SignedMath.sol)

pragma solidity ^0.8.20;

/**
 * @dev Standard signed math utilities missing in the Solidity language.
 */
library SignedMath {
    /**
     * @dev Returns the largest of two signed numbers.
     */
    function max(int256 a, int256 b) internal pure returns (int256) {
        return a > b ? a : b;
    }

    /**
     * @dev Returns the smallest of two signed numbers.
     */
    function min(int256 a, int256 b) internal pure returns (int256) {
        return a < b ? a : b;
    }

    /**
     * @dev Returns the average of two signed numbers without overflow.
     * The result is rounded towards zero.
     */
    function average(int256 a, int256 b) internal pure returns (int256) {
        // Formula from the book "Hacker's Delight"
        int256 x = (a & b) + ((a ^ b) >> 1);
        return x + (int256(uint256(x) >> 255) & (a ^ b));
    }

    /**
     * @dev Returns the absolute unsigned value of a signed value.
     */
    function abs(int256 n) internal pure returns (uint256) {
        unchecked {
            // must be unchecked in order to support `n = type(int256).min`
            return uint256(n >= 0 ? n : -n);
        }
    }
}

{
  "remappings": [
    "@openzeppelin/contracts-upgradeable/=lib/openzeppelin-contracts-upgradeable/contracts/",
    "@openzeppelin/contracts/=lib/openzeppelin-contracts/contracts/",
    "murky/=lib/murky/src/",
    "ds-test/=lib/murky/lib/forge-std/lib/ds-test/src/",
    "erc4626-tests/=lib/openzeppelin-contracts-upgradeable/lib/erc4626-tests/",
    "forge-std/=lib/murky/lib/forge-std/src/",
    "openzeppelin-contracts-upgradeable/=lib/openzeppelin-contracts-upgradeable/",
    "openzeppelin-contracts/=lib/openzeppelin-contracts/"
  ],
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "metadata": {
    "useLiteralContent": false,
    "bytecodeHash": "ipfs",
    "appendCBOR": true
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "evmVersion": "paris",
  "libraries": {}
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"ERC721EnumerableForbiddenBatchMint","type":"error"},{"inputs":[{"internalType":"address","name":"sender","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"address","name":"owner","type":"address"}],"name":"ERC721IncorrectOwner","type":"error"},{"inputs":[{"internalType":"address","name":"operator","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"ERC721InsufficientApproval","type":"error"},{"inputs":[{"internalType":"address","name":"approver","type":"address"}],"name":"ERC721InvalidApprover","type":"error"},{"inputs":[{"internalType":"address","name":"operator","type":"address"}],"name":"ERC721InvalidOperator","type":"error"},{"inputs":[{"internalType":"address","name":"owner","type":"address"}],"name":"ERC721InvalidOwner","type":"error"},{"inputs":[{"internalType":"address","name":"receiver","type":"address"}],"name":"ERC721InvalidReceiver","type":"error"},{"inputs":[{"internalType":"address","name":"sender","type":"address"}],"name":"ERC721InvalidSender","type":"error"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"ERC721NonexistentToken","type":"error"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"uint256","name":"index","type":"uint256"}],"name":"ERC721OutOfBoundsIndex","type":"error"},{"inputs":[{"internalType":"address","name":"owner","type":"address"}],"name":"OwnableInvalidOwner","type":"error"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"OwnableUnauthorizedAccount","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":"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":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"approve","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"burn","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bool","name":"_publicSale","type":"bool"},{"internalType":"uint256","name":"_cost","type":"uint256"},{"internalType":"string","name":"_placeHolderURI","type":"string"},{"internalType":"bytes32","name":"_merkleRoot","type":"bytes32"}],"name":"configure","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"cost","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":[{"internalType":"bytes32[]","name":"proof","type":"bytes32[]"}],"name":"isAllowlisted","outputs":[{"internalType":"bool","name":"","type":"bool"}],"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":"merkleRoot","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32[]","name":"proof","type":"bytes32[]"}],"name":"mint","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"nextToken","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"address","name":"from","type":"address"},{"internalType":"uint256","name":"id","type":"uint256"},{"internalType":"bytes","name":"","type":"bytes"}],"name":"onERC721Received","outputs":[{"internalType":"bytes4","name":"","type":"bytes4"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"}],"name":"ownerMint","outputs":[],"stateMutability":"nonpayable","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":"","type":"uint256"}],"name":"pairs","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"placeHolderURI","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"publicSale","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"address","name":"destination","type":"address"}],"name":"recover","outputs":[],"stateMutability":"nonpayable","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":"saleMints","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":"uint256[]","name":"tokenIds","type":"uint256[]"}],"name":"setPairs","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string[]","name":"uris","type":"string[]"},{"internalType":"uint256[]","name":"tokenIds","type":"uint256[]"}],"name":"setTokenURIs","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes4","name":"interfaceId","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"index","type":"uint256"}],"name":"tokenByIndex","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"uint256","name":"index","type":"uint256"}],"name":"tokenOfOwnerByIndex","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"tokenURI","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"tokenURIs","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":[{"internalType":"address","name":"receiver","type":"address"}],"name":"withdraw","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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