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 ^0.8.19;

import "@openzeppelin/contracts/token/ERC721/ERC721.sol";
import "@openzeppelin/contracts/token/ERC721/extensions/ERC721Royalty.sol";
import "@openzeppelin/contracts/utils/Strings.sol";
import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/utils/Counters.sol";
import "@openzeppelin/contracts/utils/Address.sol";

import "./Minter.sol";

/**
          _____                    _____                    _____                   _______                   _____                _____          
         /\    \                  /\    \                  /\    \                 /::\    \                 /\    \              |\    \         
        /::\____\                /::\    \                /::\____\               /::::\    \               /::\    \             |:\____\        
       /::::|   |               /::::\    \              /::::|   |              /::::::\    \             /::::\    \            |::|   |        
      /:::::|   |              /::::::\    \            /:::::|   |             /::::::::\    \           /::::::\    \           |::|   |        
     /::::::|   |             /:::/\:::\    \          /::::::|   |            /:::/~~\:::\    \         /:::/\:::\    \          |::|   |        
    /:::/|::|   |            /:::/__\:::\    \        /:::/|::|   |           /:::/    \:::\    \       /:::/__\:::\    \         |::|   |        
   /:::/ |::|   |           /::::\   \:::\    \      /:::/ |::|   |          /:::/    / \:::\    \     /::::\   \:::\    \        |::|   |        
  /:::/  |::|___|______    /::::::\   \:::\    \    /:::/  |::|___|______   /:::/____/   \:::\____\   /::::::\   \:::\    \       |::|___|______  
 /:::/   |::::::::\    \  /:::/\:::\   \:::\    \  /:::/   |::::::::\    \ |:::|    |     |:::|    | /:::/\:::\   \:::\____\      /::::::::\    \ 
/:::/    |:::::::::\____\/:::/__\:::\   \:::\____\/:::/    |:::::::::\____\|:::|____|     |:::|    |/:::/  \:::\   \:::|    |    /::::::::::\____\
\::/    / ~~~~~/:::/    /\:::\   \:::\   \::/    /\::/    / ~~~~~/:::/    / \:::\    \   /:::/    / \::/   |::::\  /:::|____|   /:::/~~~~/~~      
 \/____/      /:::/    /  \:::\   \:::\   \/____/  \/____/      /:::/    /   \:::\    \ /:::/    /   \/____|:::::\/:::/    /   /:::/    /         
             /:::/    /    \:::\   \:::\    \                  /:::/    /     \:::\    /:::/    /          |:::::::::/    /   /:::/    /          
            /:::/    /      \:::\   \:::\____\                /:::/    /       \:::\__/:::/    /           |::|\::::/    /   /:::/    /           
           /:::/    /        \:::\   \::/    /               /:::/    /         \::::::::/    /            |::| \::/____/    \::/    /            
          /:::/    /          \:::\   \/____/               /:::/    /           \::::::/    /             |::|  ~|           \/____/             
         /:::/    /            \:::\    \                  /:::/    /             \::::/    /              |::|   |                               
        /:::/    /              \:::\____\                /:::/    /               \::/____/               \::|   |                               
        \::/    /                \::/    /                \::/    /                 ~~                      \:|   |                               
         \/____/                  \/____/                  \/____/                                           \|___|                               
                                                                                                                                                  
          _____                    _____                    _____                    _____                    _____        _____                  
         /\    \                  /\    \                  /\    \                  /\    \                  /\    \      |\    \                 
        /::\    \                /::\____\                /::\    \                /::\    \                /::\____\     |:\____\                
       /::::\    \              /:::/    /               /::::\    \              /::::\    \              /:::/    /     |::|   |                
      /::::::\    \            /:::/    /               /::::::\    \            /::::::\    \            /:::/    /      |::|   |                
     /:::/\:::\    \          /:::/    /               /:::/\:::\    \          /:::/\:::\    \          /:::/    /       |::|   |                
    /:::/__\:::\    \        /:::/    /               /:::/__\:::\    \        /:::/__\:::\    \        /:::/    /        |::|   |                
    \:::\   \:::\    \      /:::/    /               /::::\   \:::\    \      /::::\   \:::\    \      /:::/    /         |::|   |                
  ___\:::\   \:::\    \    /:::/    /      _____    /::::::\   \:::\    \    /::::::\   \:::\    \    /:::/    /          |::|___|______          
 /\   \:::\   \:::\    \  /:::/____/      /\    \  /:::/\:::\   \:::\____\  /:::/\:::\   \:::\____\  /:::/    /           /::::::::\    \         
/::\   \:::\   \:::\____\|:::|    /      /::\____\/:::/  \:::\   \:::|    |/:::/  \:::\   \:::|    |/:::/____/           /::::::::::\____\        
\:::\   \:::\   \::/    /|:::|____\     /:::/    /\::/    \:::\  /:::|____|\::/    \:::\  /:::|____|\:::\    \          /:::/~~~~/~~              
 \:::\   \:::\   \/____/  \:::\    \   /:::/    /  \/_____/\:::\/:::/    /  \/_____/\:::\/:::/    /  \:::\    \        /:::/    /                 
  \:::\   \:::\    \       \:::\    \ /:::/    /            \::::::/    /            \::::::/    /    \:::\    \      /:::/    /                  
   \:::\   \:::\____\       \:::\    /:::/    /              \::::/    /              \::::/    /      \:::\    \    /:::/    /                   
    \:::\  /:::/    /        \:::\__/:::/    /                \::/____/                \::/____/        \:::\    \   \::/    /                    
     \:::\/:::/    /          \::::::::/    /                  ~~                       ~~               \:::\    \   \/____/                     
      \::::::/    /            \::::::/    /                                                              \:::\    \                              
       \::::/    /              \::::/    /                                                                \:::\____\                             
        \::/    /                \::/____/                                                                  \::/    /                             
         \/____/                  ~~                                                                         \/____/                              
                                                                                                                                                  
@title Memory
@author @sammdec
@notice Create to play
*/

contract Memory is ERC721, ERC721Royalty, Ownable {
    using Strings for uint256;
    using Counters for Counters.Counter;
    using Address for address;

    // @notice Counter for tokenIds
    Counters.Counter private _tokenIdCounter;

    // @notice the Minter contract
    // @dev Only this has permission to mint
    Minter public minter;

    // @notice Base URI for tokenURI
    string public baseURI;

    // @notice Default royalty is 5% in basis points
    uint96 public ROYALTY = 500;

    // @notice Beneficiary address for withdraws
    address public beneficiary;
    // @notice Mapping of token ID's to design ID's e.g 1 => 1_1_1_1
    mapping(uint256 => string) public tokenIdsToDesignIds;

    // @notice Mapping of design ID's to token ID's e.g 1_1_1_1 => 1
    mapping(string => uint256) public designIdsToTokenIds;

    // @notice Event emitted when a token is minted
    event Mint(address indexed _to, uint256 _tokenId, string _designId);

    // @notice Initializes the contract by setting a `name` and a `symbol`, sets the baseURI from the argument, sets the default royalty receiver to the contracts address and increments the token ID so that we start with 1.
    constructor(string memory _baseURI) ERC721("Memory", "MEMORY") {
        baseURI = _baseURI;

        // Increments on deploy as we start tokenId's at 1
        _tokenIdCounter.increment();
        _setDefaultRoyalty(address(this), ROYALTY);
    }

    // @notice modifier to only allow the Minter contract to call functions
    modifier onlyMinter() {
        require(
            address(minter) == msg.sender,
            "Caller is not the minter contract"
        );
        _;
    }

    // @notice Mints a new Memory
    // @dev Can only be called from the Minter contract
    // @param recipient The address that called the mint function and will receive this token
    // @param designId The ID in string format e.g 1_1_1_1
    function mintFromMinter(
        address recipient,
        string calldata designId
    ) external onlyMinter returns (uint256) {
        // Check this design ID doesnt alreayd exist
        require(designIdsToTokenIds[designId] == 0, "Design ID already exists");

        // Get the current token ID and store a ref to it
        uint256 tokenId = _tokenIdCounter.current();
        // Mint using the current token ID
        _mint(recipient, tokenId);

        // Add the newly used token ID and set the components ID
        tokenIdsToDesignIds[tokenId] = designId;
        // Add the components ID and set the token ID of it
        designIdsToTokenIds[designId] = tokenId;

        // Emit the Mint event
        emit Mint(recipient, tokenId, designId);

        // increment the tokenID counter for the next mint
        _tokenIdCounter.increment();

        //  Return the token ID
        return tokenId;
    }

    // @notice Get the tokenURI for the given token ID
    // @param tokenId The token ID we are looking up
    function tokenURI(
        uint256 tokenId
    ) public view override(ERC721) returns (string memory) {
        // If the owner of this token ID is 0 it means it hasnt been minted or someone has sent it to the 0 address
        require(ownerOf(tokenId) != address(0), "Token ID does not exist");

        // Our API actually doesnt use the tokenID it uses the design ID so we get it from the mapping
        string memory designId = tokenIdsToDesignIds[tokenId];

        // Concatenate the baseURI and designID to create the full url
        return string.concat(baseURI, designId);
    }

    // @notice Gets the current token ID, this will be the next one to be minted
    function currentTokenId() external view returns (uint256) {
        return _tokenIdCounter.current();
    }

    /**
     * @dev Admin functions
     */

    // @notice Sets the Minter address
    // @param _minter The minter contract address
    function setMinter(Minter _minter) external onlyOwner {
        minter = _minter;
    }

    // @notice Sets the baseURI
    // @dev This should contain an end slash (/) due to the way concatenation happens
    // @param _baseURI The new base URI string
    function setBaseURI(string memory _baseURI) external onlyOwner {
        baseURI = _baseURI;
    }

    // @notice Sets the beneficiary of where funds are sent
    // @param _beneficiary Sets the new beneficiary address
    function setBeneficiary(address _beneficiary) external onlyOwner {
        beneficiary = _beneficiary;
    }

    // @notice Withdraws ETH from this contract to the beneficiary address
    function withdraw() external {
        require(beneficiary != address(0), "Beneficiary address not set");
        (bool success, ) = beneficiary.call{value: address(this).balance}("");
        require(success, "Withdraw unsuccessful");
    }

    // @notice Allows the withdrawal of ERC20's that have been sent to this contract to the beneficiary
    // @param _erc20Token The address of the token to be withdrawn
    function withdrawERC20(IERC20 _erc20Token) external onlyOwner {
        require(beneficiary != address(0), "Beneficiary address not set");
        _erc20Token.transfer(beneficiary, _erc20Token.balanceOf(address(this)));
    }

    /**
     * @dev Overrides
     */
    function _burn(uint256 tokenId) internal override(ERC721, ERC721Royalty) {
        super._burn(tokenId);
    }

    function supportsInterface(
        bytes4 interfaceId
    ) public view virtual override(ERC721, ERC721Royalty) returns (bool) {
        return super.supportsInterface(interfaceId);
    }

    // @notice A default receive function in case anyone or any other contract tries to send ETH to this contract
    receive() external payable {}
}

// 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 v4.4.1 (interfaces/IERC20.sol)

pragma solidity ^0.8.0;

import "../token/ERC20/IERC20.sol";

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (interfaces/IERC2981.sol)

pragma solidity ^0.8.0;

import "../utils/introspection/IERC165.sol";

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

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
    /**
     * @dev Emitted when `value` tokens are moved from one account (`from`) to
     * another (`to`).
     *
     * Note that `value` may be zero.
     */
    event Transfer(address indexed from, address indexed to, uint256 value);

    /**
     * @dev Emitted when the allowance of a `spender` for an `owner` is set by
     * a call to {approve}. `value` is the new allowance.
     */
    event Approval(address indexed owner, address indexed spender, uint256 value);

    /**
     * @dev Returns the amount of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

    /**
     * @dev Returns the amount of tokens owned by `account`.
     */
    function balanceOf(address account) external view returns (uint256);

    /**
     * @dev Moves `amount` tokens from the caller's account to `to`.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transfer(address to, uint256 amount) external returns (bool);

    /**
     * @dev Returns the remaining number of tokens that `spender` will be
     * allowed to spend on behalf of `owner` through {transferFrom}. This is
     * zero by default.
     *
     * This value changes when {approve} or {transferFrom} are called.
     */
    function allowance(address owner, address spender) external view returns (uint256);

    /**
     * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * IMPORTANT: Beware that changing an allowance with this method brings the risk
     * that someone may use both the old and the new allowance by unfortunate
     * transaction ordering. One possible solution to mitigate this race
     * condition is to first reduce the spender's allowance to 0 and set the
     * desired value afterwards:
     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
     *
     * Emits an {Approval} event.
     */
    function approve(address spender, uint256 amount) external returns (bool);

    /**
     * @dev Moves `amount` tokens from `from` to `to` using the
     * allowance mechanism. `amount` is then deducted from the caller's
     * allowance.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(
        address from,
        address to,
        uint256 amount
    ) external returns (bool);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (token/ERC721/ERC721.sol)

pragma solidity ^0.8.0;

import "./IERC721.sol";
import "./IERC721Receiver.sol";
import "./extensions/IERC721Metadata.sol";
import "../../utils/Address.sol";
import "../../utils/Context.sol";
import "../../utils/Strings.sol";
import "../../utils/introspection/ERC165.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}.
 */
contract ERC721 is Context, ERC165, IERC721, IERC721Metadata {
    using Address for address;
    using Strings for uint256;

    // Token name
    string private _name;

    // Token symbol
    string private _symbol;

    // Mapping from token ID to owner address
    mapping(uint256 => address) private _owners;

    // Mapping owner address to token count
    mapping(address => uint256) private _balances;

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

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

    /**
     * @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 override returns (uint256) {
        require(owner != address(0), "ERC721: address zero is not a valid owner");
        return _balances[owner];
    }

    /**
     * @dev See {IERC721-ownerOf}.
     */
    function ownerOf(uint256 tokenId) public view virtual override returns (address) {
        address owner = _ownerOf(tokenId);
        require(owner != address(0), "ERC721: invalid token ID");
        return owner;
    }

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

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

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

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

    /**
     * @dev Base URI for computing {tokenURI}. If set, the resulting URI for each
     * token will be the concatenation of the `baseURI` and the `tokenId`. Empty
     * by default, can be 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 override {
        address owner = ERC721.ownerOf(tokenId);
        require(to != owner, "ERC721: approval to current owner");

        require(
            _msgSender() == owner || isApprovedForAll(owner, _msgSender()),
            "ERC721: approve caller is not token owner or approved for all"
        );

        _approve(to, tokenId);
    }

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

        return _tokenApprovals[tokenId];
    }

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

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

    /**
     * @dev See {IERC721-transferFrom}.
     */
    function transferFrom(
        address from,
        address to,
        uint256 tokenId
    ) public virtual override {
        //solhint-disable-next-line max-line-length
        require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: caller is not token owner or approved");

        _transfer(from, to, tokenId);
    }

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

    /**
     * @dev See {IERC721-safeTransferFrom}.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId,
        bytes memory data
    ) public virtual override {
        require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: caller is not token owner or approved");
        _safeTransfer(from, to, tokenId, data);
    }

    /**
     * @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.
     *
     * `data` is additional data, it has no specified format and it is sent in call to `to`.
     *
     * This internal function is equivalent to {safeTransferFrom}, and can be used to e.g.
     * implement alternative mechanisms to perform token transfer, such as signature-based.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must exist and be owned by `from`.
     * - 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,
        bytes memory data
    ) internal virtual {
        _transfer(from, to, tokenId);
        require(_checkOnERC721Received(from, to, tokenId, data), "ERC721: transfer to non ERC721Receiver implementer");
    }

    /**
     * @dev Returns the owner of the `tokenId`. Does NOT revert if token doesn't exist
     */
    function _ownerOf(uint256 tokenId) internal view virtual returns (address) {
        return _owners[tokenId];
    }

    /**
     * @dev Returns whether `tokenId` exists.
     *
     * Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.
     *
     * Tokens start existing when they are minted (`_mint`),
     * and stop existing when they are burned (`_burn`).
     */
    function _exists(uint256 tokenId) internal view virtual returns (bool) {
        return _ownerOf(tokenId) != address(0);
    }

    /**
     * @dev Returns whether `spender` is allowed to manage `tokenId`.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function _isApprovedOrOwner(address spender, uint256 tokenId) internal view virtual returns (bool) {
        address owner = ERC721.ownerOf(tokenId);
        return (spender == owner || isApprovedForAll(owner, spender) || getApproved(tokenId) == spender);
    }

    /**
     * @dev Safely mints `tokenId` and transfers it to `to`.
     *
     * 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 virtual {
        _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);
        require(
            _checkOnERC721Received(address(0), to, tokenId, data),
            "ERC721: transfer to non ERC721Receiver implementer"
        );
    }

    /**
     * @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 virtual {
        require(to != address(0), "ERC721: mint to the zero address");
        require(!_exists(tokenId), "ERC721: token already minted");

        _beforeTokenTransfer(address(0), to, tokenId, 1);

        // Check that tokenId was not minted by `_beforeTokenTransfer` hook
        require(!_exists(tokenId), "ERC721: token already minted");

        unchecked {
            // Will not overflow unless all 2**256 token ids are minted to the same owner.
            // Given that tokens are minted one by one, it is impossible in practice that
            // this ever happens. Might change if we allow batch minting.
            // The ERC fails to describe this case.
            _balances[to] += 1;
        }

        _owners[tokenId] = to;

        emit Transfer(address(0), to, tokenId);

        _afterTokenTransfer(address(0), to, tokenId, 1);
    }

    /**
     * @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 virtual {
        address owner = ERC721.ownerOf(tokenId);

        _beforeTokenTransfer(owner, address(0), tokenId, 1);

        // Update ownership in case tokenId was transferred by `_beforeTokenTransfer` hook
        owner = ERC721.ownerOf(tokenId);

        // Clear approvals
        delete _tokenApprovals[tokenId];

        unchecked {
            // Cannot overflow, as that would require more tokens to be burned/transferred
            // out than the owner initially received through minting and transferring in.
            _balances[owner] -= 1;
        }
        delete _owners[tokenId];

        emit Transfer(owner, address(0), tokenId);

        _afterTokenTransfer(owner, address(0), tokenId, 1);
    }

    /**
     * @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 virtual {
        require(ERC721.ownerOf(tokenId) == from, "ERC721: transfer from incorrect owner");
        require(to != address(0), "ERC721: transfer to the zero address");

        _beforeTokenTransfer(from, to, tokenId, 1);

        // Check that tokenId was not transferred by `_beforeTokenTransfer` hook
        require(ERC721.ownerOf(tokenId) == from, "ERC721: transfer from incorrect owner");

        // Clear approvals from the previous owner
        delete _tokenApprovals[tokenId];

        unchecked {
            // `_balances[from]` cannot overflow for the same reason as described in `_burn`:
            // `from`'s balance is the number of token held, which is at least one before the current
            // transfer.
            // `_balances[to]` could overflow in the conditions described in `_mint`. That would require
            // all 2**256 token ids to be minted, which in practice is impossible.
            _balances[from] -= 1;
            _balances[to] += 1;
        }
        _owners[tokenId] = to;

        emit Transfer(from, to, tokenId);

        _afterTokenTransfer(from, to, tokenId, 1);
    }

    /**
     * @dev Approve `to` to operate on `tokenId`
     *
     * Emits an {Approval} event.
     */
    function _approve(address to, uint256 tokenId) internal virtual {
        _tokenApprovals[tokenId] = to;
        emit Approval(ERC721.ownerOf(tokenId), to, tokenId);
    }

    /**
     * @dev Approve `operator` to operate on all of `owner` tokens
     *
     * Emits an {ApprovalForAll} event.
     */
    function _setApprovalForAll(
        address owner,
        address operator,
        bool approved
    ) internal virtual {
        require(owner != operator, "ERC721: approve to caller");
        _operatorApprovals[owner][operator] = approved;
        emit ApprovalForAll(owner, operator, approved);
    }

    /**
     * @dev Reverts if the `tokenId` has not been minted yet.
     */
    function _requireMinted(uint256 tokenId) internal view virtual {
        require(_exists(tokenId), "ERC721: invalid token ID");
    }

    /**
     * @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address.
     * 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
     * @return bool whether the call correctly returned the expected magic value
     */
    function _checkOnERC721Received(
        address from,
        address to,
        uint256 tokenId,
        bytes memory data
    ) private returns (bool) {
        if (to.isContract()) {
            try IERC721Receiver(to).onERC721Received(_msgSender(), from, tokenId, data) returns (bytes4 retval) {
                return retval == IERC721Receiver.onERC721Received.selector;
            } catch (bytes memory reason) {
                if (reason.length == 0) {
                    revert("ERC721: transfer to non ERC721Receiver implementer");
                } else {
                    /// @solidity memory-safe-assembly
                    assembly {
                        revert(add(32, reason), mload(reason))
                    }
                }
            }
        } else {
            return true;
        }
    }

    /**
     * @dev Hook that is called before any token transfer. This includes minting and burning. If {ERC721Consecutive} is
     * used, the hook may be called as part of a consecutive (batch) mint, as indicated by `batchSize` greater than 1.
     *
     * Calling conditions:
     *
     * - When `from` and `to` are both non-zero, ``from``'s tokens will be transferred to `to`.
     * - When `from` is zero, the tokens will be minted for `to`.
     * - When `to` is zero, ``from``'s tokens will be burned.
     * - `from` and `to` are never both zero.
     * - `batchSize` is non-zero.
     *
     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
     */
    function _beforeTokenTransfer(
        address from,
        address to,
        uint256, /* firstTokenId */
        uint256 batchSize
    ) internal virtual {
        if (batchSize > 1) {
            if (from != address(0)) {
                _balances[from] -= batchSize;
            }
            if (to != address(0)) {
                _balances[to] += batchSize;
            }
        }
    }

    /**
     * @dev Hook that is called after any token transfer. This includes minting and burning. If {ERC721Consecutive} is
     * used, the hook may be called as part of a consecutive (batch) mint, as indicated by `batchSize` greater than 1.
     *
     * Calling conditions:
     *
     * - When `from` and `to` are both non-zero, ``from``'s tokens were transferred to `to`.
     * - When `from` is zero, the tokens were minted for `to`.
     * - When `to` is zero, ``from``'s tokens were burned.
     * - `from` and `to` are never both zero.
     * - `batchSize` is non-zero.
     *
     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
     */
    function _afterTokenTransfer(
        address from,
        address to,
        uint256 firstTokenId,
        uint256 batchSize
    ) internal virtual {}
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (token/ERC721/IERC721.sol)

pragma solidity ^0.8.0;

import "../../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 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);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC721/IERC721Receiver.sol)

pragma solidity ^0.8.0;

/**
 * @title ERC721 token receiver interface
 * @dev Interface for any contract that wants to support safeTransfers
 * from ERC721 asset contracts.
 */
interface IERC721Receiver {
    /**
     * @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom}
     * by `operator` from `from`, this function is called.
     *
     * It must return its Solidity selector to confirm the token transfer.
     * If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted.
     *
     * The selector can be obtained in Solidity with `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 v4.8.0) (token/ERC721/extensions/ERC721Royalty.sol)

pragma solidity ^0.8.0;

import "../ERC721.sol";
import "../../common/ERC2981.sol";
import "../../../utils/introspection/ERC165.sol";

/**
 * @dev Extension of ERC721 with the ERC2981 NFT Royalty Standard, a standardized way to retrieve royalty payment
 * information.
 *
 * Royalty information can be specified globally for all token ids via {ERC2981-_setDefaultRoyalty}, and/or individually for
 * specific token ids via {ERC2981-_setTokenRoyalty}. The latter takes precedence over the first.
 *
 * IMPORTANT: ERC-2981 only specifies a way to signal royalty information and does not enforce its payment. See
 * https://eips.ethereum.org/EIPS/eip-2981#optional-royalty-payments[Rationale] in the EIP. Marketplaces are expected to
 * voluntarily pay royalties together with sales, but note that this standard is not yet widely supported.
 *
 * _Available since v4.5._
 */
abstract contract ERC721Royalty is ERC2981, ERC721 {
    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override(ERC721, ERC2981) returns (bool) {
        return super.supportsInterface(interfaceId);
    }

    /**
     * @dev See {ERC721-_burn}. This override additionally clears the royalty information for the token.
     */
    function _burn(uint256 tokenId) internal virtual override {
        super._burn(tokenId);
        _resetTokenRoyalty(tokenId);
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/IERC721Metadata.sol)

pragma solidity ^0.8.0;

import "../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 v4.7.0) (token/common/ERC2981.sol)

pragma solidity ^0.8.0;

import "../../interfaces/IERC2981.sol";
import "../../utils/introspection/ERC165.sol";

/**
 * @dev Implementation of the NFT Royalty Standard, a standardized way to retrieve royalty payment information.
 *
 * Royalty information can be specified globally for all token ids via {_setDefaultRoyalty}, and/or individually for
 * specific token ids via {_setTokenRoyalty}. The latter takes precedence over the first.
 *
 * Royalty is specified as a fraction of sale price. {_feeDenominator} is overridable but defaults to 10000, meaning the
 * fee is specified in basis points by default.
 *
 * IMPORTANT: ERC-2981 only specifies a way to signal royalty information and does not enforce its payment. See
 * https://eips.ethereum.org/EIPS/eip-2981#optional-royalty-payments[Rationale] in the EIP. Marketplaces are expected to
 * voluntarily pay royalties together with sales, but note that this standard is not yet widely supported.
 *
 * _Available since v4.5._
 */
abstract contract ERC2981 is IERC2981, ERC165 {
    struct RoyaltyInfo {
        address receiver;
        uint96 royaltyFraction;
    }

    RoyaltyInfo private _defaultRoyaltyInfo;
    mapping(uint256 => RoyaltyInfo) private _tokenRoyaltyInfo;

    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override(IERC165, ERC165) returns (bool) {
        return interfaceId == type(IERC2981).interfaceId || super.supportsInterface(interfaceId);
    }

    /**
     * @inheritdoc IERC2981
     */
    function royaltyInfo(uint256 _tokenId, uint256 _salePrice) public view virtual override returns (address, uint256) {
        RoyaltyInfo memory royalty = _tokenRoyaltyInfo[_tokenId];

        if (royalty.receiver == address(0)) {
            royalty = _defaultRoyaltyInfo;
        }

        uint256 royaltyAmount = (_salePrice * royalty.royaltyFraction) / _feeDenominator();

        return (royalty.receiver, royaltyAmount);
    }

    /**
     * @dev The denominator with which to interpret the fee set in {_setTokenRoyalty} and {_setDefaultRoyalty} as a
     * fraction of the sale price. Defaults to 10000 so fees are expressed in basis points, but may be customized by an
     * override.
     */
    function _feeDenominator() internal pure virtual returns (uint96) {
        return 10000;
    }

    /**
     * @dev Sets the royalty information that all ids in this contract will default to.
     *
     * Requirements:
     *
     * - `receiver` cannot be the zero address.
     * - `feeNumerator` cannot be greater than the fee denominator.
     */
    function _setDefaultRoyalty(address receiver, uint96 feeNumerator) internal virtual {
        require(feeNumerator <= _feeDenominator(), "ERC2981: royalty fee will exceed salePrice");
        require(receiver != address(0), "ERC2981: invalid receiver");

        _defaultRoyaltyInfo = RoyaltyInfo(receiver, feeNumerator);
    }

    /**
     * @dev Removes default royalty information.
     */
    function _deleteDefaultRoyalty() internal virtual {
        delete _defaultRoyaltyInfo;
    }

    /**
     * @dev Sets the royalty information for a specific token id, overriding the global default.
     *
     * Requirements:
     *
     * - `receiver` cannot be the zero address.
     * - `feeNumerator` cannot be greater than the fee denominator.
     */
    function _setTokenRoyalty(
        uint256 tokenId,
        address receiver,
        uint96 feeNumerator
    ) internal virtual {
        require(feeNumerator <= _feeDenominator(), "ERC2981: royalty fee will exceed salePrice");
        require(receiver != address(0), "ERC2981: Invalid parameters");

        _tokenRoyaltyInfo[tokenId] = RoyaltyInfo(receiver, feeNumerator);
    }

    /**
     * @dev Resets royalty information for the token id back to the global default.
     */
    function _resetTokenRoyalty(uint256 tokenId) internal virtual {
        delete _tokenRoyaltyInfo[tokenId];
    }
}

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

pragma solidity ^0.8.1;

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

        return account.code.length > 0;
    }

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

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

    /**
     * @dev Performs a Solidity function call using a low level `call`. A
     * plain `call` is an unsafe replacement for a function call: use this
     * function instead.
     *
     * If `target` reverts with a revert reason, it is bubbled up by this
     * function (like regular Solidity function calls).
     *
     * Returns the raw returned data. To convert to the expected return value,
     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
     *
     * Requirements:
     *
     * - `target` must be a contract.
     * - calling `target` with `data` must not revert.
     *
     * _Available since v3.1._
     */
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0, "Address: low-level call failed");
    }

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

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

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

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

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal view returns (bytes memory) {
        (bool success, bytes memory returndata) = target.staticcall(data);
        return verifyCallResultFromTarget(target, success, returndata, errorMessage);
    }

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

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        (bool success, bytes memory returndata) = target.delegatecall(data);
        return verifyCallResultFromTarget(target, success, returndata, errorMessage);
    }

    /**
     * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling
     * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.
     *
     * _Available since v4.8._
     */
    function verifyCallResultFromTarget(
        address target,
        bool success,
        bytes memory returndata,
        string memory errorMessage
    ) internal view returns (bytes memory) {
        if (success) {
            if (returndata.length == 0) {
                // only check isContract if the call was successful and the return data is empty
                // otherwise we already know that it was a contract
                require(isContract(target), "Address: call to non-contract");
            }
            return returndata;
        } else {
            _revert(returndata, errorMessage);
        }
    }

    /**
     * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the
     * revert reason or using the provided one.
     *
     * _Available since v4.3._
     */
    function verifyCallResult(
        bool success,
        bytes memory returndata,
        string memory errorMessage
    ) internal pure returns (bytes memory) {
        if (success) {
            return returndata;
        } else {
            _revert(returndata, errorMessage);
        }
    }

    function _revert(bytes memory returndata, string memory errorMessage) private pure {
        // Look for revert reason and bubble it up if present
        if (returndata.length > 0) {
            // The easiest way to bubble the revert reason is using memory via assembly
            /// @solidity memory-safe-assembly
            assembly {
                let returndata_size := mload(returndata)
                revert(add(32, returndata), returndata_size)
            }
        } else {
            revert(errorMessage);
        }
    }
}

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

pragma solidity ^0.8.0;

/**
 * @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 v4.4.1 (utils/Counters.sol)

pragma solidity ^0.8.0;

/**
 * @title Counters
 * @author Matt Condon (@shrugs)
 * @dev Provides counters that can only be incremented, decremented or reset. This can be used e.g. to track the number
 * of elements in a mapping, issuing ERC721 ids, or counting request ids.
 *
 * Include with `using Counters for Counters.Counter;`
 */
library Counters {
    struct Counter {
        // This variable should never be directly accessed by users of the library: interactions must be restricted to
        // the library's function. As of Solidity v0.5.2, this cannot be enforced, though there is a proposal to add
        // this feature: see https://github.com/ethereum/solidity/issues/4637
        uint256 _value; // default: 0
    }

    function current(Counter storage counter) internal view returns (uint256) {
        return counter._value;
    }

    function increment(Counter storage counter) internal {
        unchecked {
            counter._value += 1;
        }
    }

    function decrement(Counter storage counter) internal {
        uint256 value = counter._value;
        require(value > 0, "Counter: decrement overflow");
        unchecked {
            counter._value = value - 1;
        }
    }

    function reset(Counter storage counter) internal {
        counter._value = 0;
    }
}

// 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 v4.4.1 (utils/introspection/ERC165.sol)

pragma solidity ^0.8.0;

import "./IERC165.sol";

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

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

pragma solidity ^0.8.0;

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

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (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 ^0.8.19;

import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/utils/cryptography/ECDSA.sol";
import "@openzeppelin/contracts/interfaces/IERC20.sol";

import "./Memory.sol";

/**
@title Memory Minter
@author @sammdec
@notice The contract that mints memories
@dev It is the only contract that can mint memories and can be used to update mint logic in the future
*/
contract Minter is Ownable {
    // @notice The memory contract
    Memory public mem;

    // @notice The address of the allowlist signer
    address public allowlistSigner;

    // @notice The address of the verify signer
    address public verifySigner;

    // @notice The various minting states
    // @dev 0 = closed, 1 = allowlist, 2 = public
    uint256 public mintingState = 0;

    // @notice The price of a mint
    uint256 public constant PRICE = 0.05 ether;

    // @notice The address to send funds to when calling withdraw functions
    address public beneficiary;

    constructor() {}

    // @notice The public mint function, mints a memory from a design ID
    // @dev Will only work if mintingState is 2
    // @param designId The design ID to mint from
    // @param verifySignature The signature of the design ID
    function mintMemory(
        string calldata designId,
        bytes memory verifySignature
    ) external payable returns (string memory) {
        require(mintingState == 2, "Public mint is not active");
        require(verifySigner != address(0), "Verify signer address not set");
        require(address(mem) != address(0), "Memory contract address not set");
        require(
            isValidVerifySignature(designId, verifySignature),
            "Invalid verify signature provided"
        );
        require(msg.value == PRICE, "Incorrect amount sent");

        mem.mintFromMinter(msg.sender, designId);

        return designId;
    }

    // @notice The allowlist mint function, mints a memory from a design ID
    // @dev Will only work if mintingState is 1
    // @param designId The design ID to mint from
    // @param verifySignature The signature of the design ID
    // @param allowlistSignature The signature of the allowlist signer
    // @return string The design ID of the minted memory
    function allowlistMintMemory(
        string calldata designId,
        bytes memory verifySignature,
        bytes memory allowlistSignature
    ) external payable returns (string memory) {
        require(mintingState == 1, "Allowlist mint is not active");
        require(verifySigner != address(0), "Verify signer address not set");
        require(
            allowlistSigner != address(0),
            "Allowlist signer address not set"
        );
        require(address(mem) != address(0), "Memory contract address not set");
        require(
            isValidAllowlistSignature(allowlistSignature),
            "Invalid allowlist signature provided"
        );

        require(
            isValidVerifySignature(designId, verifySignature),
            "Invalid verify signature provided"
        );
        require(msg.value == PRICE, "Incorrect amount sent");

        mem.mintFromMinter(msg.sender, designId);

        return designId;
    }

    // @notice The function to check if a design ID signature is valid
    // @param designId The design ID to check
    // @param signature The signature to check
    // @return bool Whether the signature is valid
    function isValidVerifySignature(
        string memory designId,
        bytes memory signature
    ) private view returns (bool) {
        bytes32 hash = keccak256(abi.encodePacked(designId));
        bytes32 messageDigest = ECDSA.toEthSignedMessageHash(hash);

        address recoveredSigner = ECDSA.recover(messageDigest, signature);
        return recoveredSigner == verifySigner;
    }

    // @notice The function to check if an allowlist signature is valid
    // @param signature The signature to check
    // @return bool Whether the signature is valid
    function isValidAllowlistSignature(
        bytes memory signature
    ) private view returns (bool) {
        bytes32 hashed = keccak256(abi.encodePacked(msg.sender));
        bytes32 messageDigest = ECDSA.toEthSignedMessageHash(hashed);

        address recoveredSigner = ECDSA.recover(messageDigest, signature);
        return recoveredSigner == allowlistSigner;
    }

    /**
     * @dev Admin functions
     */

    // @notice The function to set the memory contract address
    // @param _mem The address of the memory contract
    function setMemory(Memory _mem) external onlyOwner {
        mem = Memory(_mem);
    }

    // @notice The function to set the allowlist signer address
    // @param _allowlistSigner The address of the allowlist signer
    function setAllowlistSigner(address _allowlistSigner) external onlyOwner {
        allowlistSigner = _allowlistSigner;
    }

    // @notice The function to set the verify signer address

    function setVerifySigner(address _verifySigner) external onlyOwner {
        verifySigner = _verifySigner;
    }

    // @notice The function to set the minting state, this determins if minting is open or not
    // @param _mintingState The state to set the minting to
    function setMintState(uint256 _mintingState) external onlyOwner {
        mintingState = _mintingState;
    }

    // @notice The function to set the beneficiary address
    // @param _beneficiary The address to send funds to when calling withdraw functions
    function setBeneficiary(address _beneficiary) external onlyOwner {
        beneficiary = _beneficiary;
    }

    // @notice The function to withdraw funds from the contract
    // @dev Will only work if beneficiary address is set
    function withdraw() external {
        require(beneficiary != address(0), "Beneficiary address not set");
        (bool success, ) = beneficiary.call{value: address(this).balance}("");
        require(success, "Withdraw unsuccessful");
    }

    // @notice The function to withdraw ERC20 tokens from the contract
    // @dev Will only work if beneficiary address is set
    // @param _erc20Token The address of the ERC20 token to withdraw
    function withdrawERC20(IERC20 _erc20Token) external onlyOwner {
        require(beneficiary != address(0), "Beneficiary address not set");
        _erc20Token.transfer(beneficiary, _erc20Token.balanceOf(address(this)));
    }
}

{
  "evmVersion": "paris",
  "libraries": {},
  "metadata": {
    "bytecodeHash": "ipfs",
    "useLiteralContent": true
  },
  "optimizer": {
    "enabled": true,
    "runs": 300
  },
  "remappings": [],
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  }
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[{"internalType":"string","name":"_baseURI","type":"string"}],"stateMutability":"nonpayable","type":"constructor"},{"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":"_to","type":"address"},{"indexed":false,"internalType":"uint256","name":"_tokenId","type":"uint256"},{"indexed":false,"internalType":"string","name":"_designId","type":"string"}],"name":"Mint","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":"ROYALTY","outputs":[{"internalType":"uint96","name":"","type":"uint96"}],"stateMutability":"view","type":"function"},{"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":[],"name":"baseURI","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"beneficiary","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"currentTokenId","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"string","name":"","type":"string"}],"name":"designIdsToTokenIds","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":"address","name":"owner","type":"address"},{"internalType":"address","name":"operator","type":"address"}],"name":"isApprovedForAll","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"recipient","type":"address"},{"internalType":"string","name":"designId","type":"string"}],"name":"mintFromMinter","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"minter","outputs":[{"internalType":"contract Minter","name":"","type":"address"}],"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":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_tokenId","type":"uint256"},{"internalType":"uint256","name":"_salePrice","type":"uint256"}],"name":"royaltyInfo","outputs":[{"internalType":"address","name":"","type":"address"},{"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":"safeTransferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"operator","type":"address"},{"internalType":"bool","name":"approved","type":"bool"}],"name":"setApprovalForAll","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"_baseURI","type":"string"}],"name":"setBaseURI","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_beneficiary","type":"address"}],"name":"setBeneficiary","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"contract Minter","name":"_minter","type":"address"}],"name":"setMinter","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":"","type":"uint256"}],"name":"tokenIdsToDesignIds","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":[{"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"},{"inputs":[{"internalType":"contract IERC20","name":"_erc20Token","type":"address"}],"name":"withdrawERC20","outputs":[],"stateMutability":"nonpayable","type":"function"},{"stateMutability":"payable","type":"receive"}]

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

0000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000002868747470733a2f2f72656e64657265722e6d656d6f72792e737570706c792f6d657461646174612f000000000000000000000000000000000000000000000000

-----Decoded View---------------
Arg [0] : _baseURI (string): https://renderer.memory.supply/metadata/

-----Encoded View---------------
4 Constructor Arguments found :
Arg [0] : 0000000000000000000000000000000000000000000000000000000000000020
Arg [1] : 0000000000000000000000000000000000000000000000000000000000000028
Arg [2] : 68747470733a2f2f72656e64657265722e6d656d6f72792e737570706c792f6d
Arg [3] : 657461646174612f000000000000000000000000000000000000000000000000