Token

Contract Source Code (Solidity Standard Json-Input format)

IDE

• Blockscan IDE
• 🤖 Code ReaderBeta
• Remix IDE

More Options

• Similar
• Sol2Uml
• Submit Audit
• Compare

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

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() {
        _setOwner(_msgSender());
    }

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

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

    function _setOwner(address newOwner) private {
        address oldOwner = _owner;
        _owner = newOwner;
        emit OwnershipTransferred(oldOwner, newOwner);
    }
}

// SPDX-License-Identifier: MIT

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: balance query for the zero address");
        return _balances[owner];
    }

    /**
     * @dev See {IERC721-ownerOf}.
     */
    function ownerOf(uint256 tokenId) public view virtual override returns (address) {
        address owner = _owners[tokenId];
        require(owner != address(0), "ERC721: owner query for nonexistent token");
        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) {
        require(_exists(tokenId), "ERC721Metadata: URI query for nonexistent token");

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

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

    /**
     * @dev See {IERC721-approve}.
     */
    function approve(address to, uint256 tokenId) public virtual override {
        address owner = ERC721.ownerOf(tokenId);
        require(to != owner, "ERC721: approval to current owner");

        require(
            _msgSender() == owner || isApprovedForAll(owner, _msgSender()),
            "ERC721: approve caller is not owner nor approved for all"
        );

        _approve(to, tokenId);
    }

    /**
     * @dev See {IERC721-getApproved}.
     */
    function getApproved(uint256 tokenId) public view virtual override returns (address) {
        require(_exists(tokenId), "ERC721: approved query for nonexistent token");

        return _tokenApprovals[tokenId];
    }

    /**
     * @dev See {IERC721-setApprovalForAll}.
     */
    function setApprovalForAll(address operator, bool approved) public virtual override {
        require(operator != _msgSender(), "ERC721: approve to caller");

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

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

    /**
     * @dev See {IERC721-transferFrom}.
     */
    function transferFrom(
        address from,
        address to,
        uint256 tokenId
    ) public virtual override {
        //solhint-disable-next-line max-line-length
        require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: transfer caller is not owner nor 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: transfer caller is not owner nor 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 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 _owners[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) {
        require(_exists(tokenId), "ERC721: operator query for nonexistent token");
        address owner = ERC721.ownerOf(tokenId);
        return (spender == owner || getApproved(tokenId) == spender || isApprovedForAll(owner, 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);

        _balances[to] += 1;
        _owners[tokenId] = to;

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

    /**
     * @dev Destroys `tokenId`.
     * The approval is cleared when the token is burned.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     *
     * Emits a {Transfer} event.
     */
    function _burn(uint256 tokenId) internal virtual {
        address owner = ERC721.ownerOf(tokenId);

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

        // Clear approvals
        _approve(address(0), tokenId);

        _balances[owner] -= 1;
        delete _owners[tokenId];

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

    /**
     * @dev Transfers `tokenId` from `from` to `to`.
     *  As opposed to {transferFrom}, this imposes no restrictions on msg.sender.
     *
     * Requirements:
     *
     * - `to` cannot be the zero address.
     * - `tokenId` token must be owned by `from`.
     *
     * Emits a {Transfer} event.
     */
    function _transfer(
        address from,
        address to,
        uint256 tokenId
    ) internal virtual {
        require(ERC721.ownerOf(tokenId) == from, "ERC721: transfer of token that is not own");
        require(to != address(0), "ERC721: transfer to the zero address");

        _beforeTokenTransfer(from, to, tokenId);

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

        _balances[from] -= 1;
        _balances[to] += 1;
        _owners[tokenId] = to;

        emit Transfer(from, to, tokenId);
    }

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

    /**
     * @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 {
                    assembly {
                        revert(add(32, reason), mload(reason))
                    }
                }
            }
        } else {
            return true;
        }
    }

    /**
     * @dev Hook that is called before any token transfer. This includes minting
     * and burning.
     *
     * Calling conditions:
     *
     * - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be
     * transferred to `to`.
     * - When `from` is zero, `tokenId` will be minted for `to`.
     * - When `to` is zero, ``from``'s `tokenId` will be burned.
     * - `from` and `to` are never both zero.
     *
     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
     */
    function _beforeTokenTransfer(
        address from,
        address to,
        uint256 tokenId
    ) internal virtual {}
}

// SPDX-License-Identifier: MIT

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

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

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

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

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

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

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

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

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

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import "../ERC721.sol";
import "./IERC721Enumerable.sol";

/**
 * @dev This implements an optional extension of {ERC721} defined in the EIP that adds
 * enumerability of all the token ids in the contract as well as all token ids owned by each
 * account.
 */
abstract contract ERC721Enumerable is ERC721, IERC721Enumerable {
    // Mapping from owner to list of owned token IDs
    mapping(address => mapping(uint256 => uint256)) private _ownedTokens;

    // Mapping from token ID to index of the owner tokens list
    mapping(uint256 => uint256) private _ownedTokensIndex;

    // Array with all token ids, used for enumeration
    uint256[] private _allTokens;

    // Mapping from token id to position in the allTokens array
    mapping(uint256 => uint256) private _allTokensIndex;

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

    /**
     * @dev See {IERC721Enumerable-tokenOfOwnerByIndex}.
     */
    function tokenOfOwnerByIndex(address owner, uint256 index) public view virtual override returns (uint256) {
        require(index < ERC721.balanceOf(owner), "ERC721Enumerable: owner index out of bounds");
        return _ownedTokens[owner][index];
    }

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

    /**
     * @dev See {IERC721Enumerable-tokenByIndex}.
     */
    function tokenByIndex(uint256 index) public view virtual override returns (uint256) {
        require(index < ERC721Enumerable.totalSupply(), "ERC721Enumerable: global index out of bounds");
        return _allTokens[index];
    }

    /**
     * @dev Hook that is called before any token transfer. This includes minting
     * and burning.
     *
     * Calling conditions:
     *
     * - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be
     * transferred to `to`.
     * - When `from` is zero, `tokenId` will be minted for `to`.
     * - When `to` is zero, ``from``'s `tokenId` will be burned.
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     *
     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
     */
    function _beforeTokenTransfer(
        address from,
        address to,
        uint256 tokenId
    ) internal virtual override {
        super._beforeTokenTransfer(from, to, tokenId);

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

    /**
     * @dev Private function to add a token to this extension's ownership-tracking data structures.
     * @param to address representing the new owner of the given token ID
     * @param tokenId uint256 ID of the token to be added to the tokens list of the given address
     */
    function _addTokenToOwnerEnumeration(address to, uint256 tokenId) private {
        uint256 length = ERC721.balanceOf(to);
        _ownedTokens[to][length] = tokenId;
        _ownedTokensIndex[tokenId] = length;
    }

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

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

        uint256 lastTokenIndex = ERC721.balanceOf(from) - 1;
        uint256 tokenIndex = _ownedTokensIndex[tokenId];

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

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

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

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

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

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

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

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

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import "../IERC721.sol";

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

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

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

// SPDX-License-Identifier: MIT

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

pragma solidity ^0.8.0;

/**
 * @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
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // This method relies on extcodesize, which returns 0 for contracts in
        // construction, since the code is only stored at the end of the
        // constructor execution.

        uint256 size;
        assembly {
            size := extcodesize(account)
        }
        return size > 0;
    }

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

// SPDX-License-Identifier: MIT

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

pragma solidity ^0.8.0;

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

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

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

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

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

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/**
 * @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
    }

    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");
        } else if (error == RecoverError.InvalidSignatureV) {
            revert("ECDSA: invalid signature 'v' 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) {
        // Check the signature length
        // - case 65: r,s,v signature (standard)
        // - case 64: r,vs signature (cf https://eips.ethereum.org/EIPS/eip-2098) _Available since v4.1._
        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.
            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 if (signature.length == 64) {
            bytes32 r;
            bytes32 vs;
            // ecrecover takes the signature parameters, and the only way to get them
            // currently is to use assembly.
            assembly {
                r := mload(add(signature, 0x20))
                vs := mload(add(signature, 0x40))
            }
            return tryRecover(hash, r, vs);
        } 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;
        uint8 v;
        assembly {
            s := and(vs, 0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff)
            v := add(shr(255, vs), 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 (v != 27 && v != 28) {
            return (address(0), RecoverError.InvalidSignatureV);
        }

        // 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 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

pragma solidity ^0.8.0;

import "./ECDSA.sol";

/**
 * @dev https://eips.ethereum.org/EIPS/eip-712[EIP 712] is a standard for hashing and signing of typed structured data.
 *
 * The encoding specified in the EIP is very generic, and such a generic implementation in Solidity is not feasible,
 * thus this contract does not implement the encoding itself. Protocols need to implement the type-specific encoding
 * they need in their contracts using a combination of `abi.encode` and `keccak256`.
 *
 * This contract implements the EIP 712 domain separator ({_domainSeparatorV4}) that is used as part of the encoding
 * scheme, and the final step of the encoding to obtain the message digest that is then signed via ECDSA
 * ({_hashTypedDataV4}).
 *
 * The implementation of the domain separator was designed to be as efficient as possible while still properly updating
 * the chain id to protect against replay attacks on an eventual fork of the chain.
 *
 * NOTE: This contract implements the version of the encoding known as "v4", as implemented by the JSON RPC method
 * https://docs.metamask.io/guide/signing-data.html[`eth_signTypedDataV4` in MetaMask].
 *
 * _Available since v3.4._
 */
abstract contract EIP712 {
    /* solhint-disable var-name-mixedcase */
    // Cache the domain separator as an immutable value, but also store the chain id that it corresponds to, in order to
    // invalidate the cached domain separator if the chain id changes.
    bytes32 private immutable _CACHED_DOMAIN_SEPARATOR;
    uint256 private immutable _CACHED_CHAIN_ID;

    bytes32 private immutable _HASHED_NAME;
    bytes32 private immutable _HASHED_VERSION;
    bytes32 private immutable _TYPE_HASH;

    /* solhint-enable var-name-mixedcase */

    /**
     * @dev Initializes the domain separator and parameter caches.
     *
     * The meaning of `name` and `version` is specified in
     * https://eips.ethereum.org/EIPS/eip-712#definition-of-domainseparator[EIP 712]:
     *
     * - `name`: the user readable name of the signing domain, i.e. the name of the DApp or the protocol.
     * - `version`: the current major version of the signing domain.
     *
     * NOTE: These parameters cannot be changed except through a xref:learn::upgrading-smart-contracts.adoc[smart
     * contract upgrade].
     */
    constructor(string memory name, string memory version) {
        bytes32 hashedName = keccak256(bytes(name));
        bytes32 hashedVersion = keccak256(bytes(version));
        bytes32 typeHash = keccak256(
            "EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)"
        );
        _HASHED_NAME = hashedName;
        _HASHED_VERSION = hashedVersion;
        _CACHED_CHAIN_ID = block.chainid;
        _CACHED_DOMAIN_SEPARATOR = _buildDomainSeparator(typeHash, hashedName, hashedVersion);
        _TYPE_HASH = typeHash;
    }

    /**
     * @dev Returns the domain separator for the current chain.
     */
    function _domainSeparatorV4() internal view returns (bytes32) {
        if (block.chainid == _CACHED_CHAIN_ID) {
            return _CACHED_DOMAIN_SEPARATOR;
        } else {
            return _buildDomainSeparator(_TYPE_HASH, _HASHED_NAME, _HASHED_VERSION);
        }
    }

    function _buildDomainSeparator(
        bytes32 typeHash,
        bytes32 nameHash,
        bytes32 versionHash
    ) private view returns (bytes32) {
        return keccak256(abi.encode(typeHash, nameHash, versionHash, block.chainid, address(this)));
    }

    /**
     * @dev Given an already https://eips.ethereum.org/EIPS/eip-712#definition-of-hashstruct[hashed struct], this
     * function returns the hash of the fully encoded EIP712 message for this domain.
     *
     * This hash can be used together with {ECDSA-recover} to obtain the signer of a message. For example:
     *
     * ```solidity
     * bytes32 digest = _hashTypedDataV4(keccak256(abi.encode(
     *     keccak256("Mail(address to,string contents)"),
     *     mailTo,
     *     keccak256(bytes(mailContents))
     * )));
     * address signer = ECDSA.recover(digest, signature);
     * ```
     */
    function _hashTypedDataV4(bytes32 structHash) internal view virtual returns (bytes32) {
        return ECDSA.toTypedDataHash(_domainSeparatorV4(), structHash);
    }
}

// SPDX-License-Identifier: MIT

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

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
pragma solidity ^0.8.0;
                                          
import "@openzeppelin/contracts/token/ERC721/ERC721.sol";
import "@openzeppelin/contracts/token/ERC721/extensions/ERC721Enumerable.sol";
import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/utils/Address.sol";
import "@openzeppelin/contracts/utils/cryptography/draft-EIP712.sol";
import "@openzeppelin/contracts/utils/cryptography/ECDSA.sol";

contract AvarikSaga is EIP712, ERC721Enumerable, Ownable {
    using Strings for uint256;

    bytes32 public constant PRESALE_TYPEHASH = keccak256("Presale(address buyer,uint256 maxCount)");

    uint256 public constant AVARIK_GIFT = 150;
    uint256 public constant AVARIK_PRIVATE = 8738;
    uint256 public constant AVARIK_MAX = AVARIK_GIFT + AVARIK_PRIVATE;
    uint256 public constant AVARIK_PRICE = 0.08 ether;
    
    mapping(address => uint256) public presalerListPurchases;
    
    string private _contractURI;
    string private _tokenBaseURI;
    string private _defaultBaseURI;

    address private _artistAddress = 0x6Fbf131EEaF61A48696d240b168A35fa6431C717;
    address public whitelistSigner;

    uint256 public giftedAmount;
    uint256 public privateAmountMinted;
    bool public presaleLive;

    event WhitelistSignerSettled(address oldSigner, address newSigner);

    constructor(
        string memory tokenBaseURI_,
        address _whitelistSigner
    ) 
        ERC721("Avarik Saga", "AVARIK")  
        EIP712("Avarik Saga", "1.0.0") 
    {
        _tokenBaseURI = tokenBaseURI_;
        whitelistSigner = _whitelistSigner;
    }

    function _hash(address _buyer, uint _maxCount) internal view returns(bytes32 hash) {
        hash = _hashTypedDataV4(keccak256(abi.encode(
            PRESALE_TYPEHASH,
            _buyer,
            _maxCount
        )));
    }

    function _verify(bytes32 digest, bytes memory signature) internal view returns(bool) {
        return ECDSA.recover(digest, signature) == whitelistSigner;
    }

    function setWhitelistSigner(address _whitelistSigner) external onlyOwner {
        require(_whitelistSigner != whitelistSigner, "Signer is still the same!");
        
        address oldSigner = whitelistSigner;
        whitelistSigner = _whitelistSigner;

        emit WhitelistSignerSettled(oldSigner, whitelistSigner);
    }
    
    function presaleBuy(uint256 tokenQuantity, uint256 maxCount, bytes memory signature) external payable {
        require(whitelistSigner != address(0), "Signer is default address!");
        require(_verify(_hash(msg.sender, maxCount), signature), "The Signature is invalid!");
        require(presaleLive, "The presale is closed");
        require(totalSupply() < AVARIK_MAX, "All Avariks are minted");
        require(privateAmountMinted + tokenQuantity <= AVARIK_PRIVATE, "Minting would exceed the presale allocation");
        require(presalerListPurchases[msg.sender] + tokenQuantity <= maxCount, "You can not mint exceeds maximum NFT");
        require(AVARIK_PRICE * tokenQuantity <= msg.value, "Insufficient ETH sent");
        
        presalerListPurchases[msg.sender] += tokenQuantity;

        for (uint256 i = 0; i < tokenQuantity; i++) {
            privateAmountMinted++;
            _safeMint(msg.sender, totalSupply() + 1);
        }
    }
    
    function gift(address[] calldata receivers) external onlyOwner {
        require(totalSupply() + receivers.length <= AVARIK_MAX, "MAX_MINT");
        require(giftedAmount + receivers.length <= AVARIK_GIFT, "GIFTS_EMPTY");
        
        for (uint256 i = 0; i < receivers.length; i++) {
            giftedAmount++;
            _safeMint(receivers[i], totalSupply() + 1);
        }
    }
    
    function withdraw() external onlyOwner {
        payable(_artistAddress).transfer(address(this).balance * 2 / 5);
        payable(msg.sender).transfer(address(this).balance);
    }

    function presalePurchasedCount(address addr) external view returns (uint256) {
        return presalerListPurchases[addr];
    }
    
    function isPresaleActive() external view returns(bool) {
        return presaleLive;
    }
    // Owner functions for enabling presale, sale, revealing and setting the provenance hash
    function togglePresaleStatus() external onlyOwner {
        presaleLive = !presaleLive;
    }
    
    function setContractURI(string calldata URI) external onlyOwner {
        _contractURI = URI;
    }
    
    function setBaseURI(string calldata URI) external onlyOwner {
        _tokenBaseURI = URI;
    }
    
    function setDefaultBaseURI(string calldata URI) external onlyOwner {
        _defaultBaseURI = URI;
    }
    
    // aWYgeW91IHJlYWQgdGhpcywgc2VuZCBGcmVkZXJpayMwMDAxLCAiZnJlZGR5IGlzIGJpZyI=
    function contractURI() public view returns (string memory) {
        return _contractURI;
    }
    
    function tokenURI(uint256 tokenId) public view override(ERC721) returns (string memory) {
        require(_exists(tokenId), "Cannot query non-existent token");
        
        return bytes(_tokenBaseURI).length > 0 ? string(abi.encodePacked(_tokenBaseURI, tokenId.toString())) : _defaultBaseURI;
    }
}

{
  "evmVersion": "london",
  "libraries": {},
  "metadata": {
    "bytecodeHash": "ipfs",
    "useLiteralContent": true
  },
  "optimizer": {
    "enabled": true,
    "runs": 1000
  },
  "remappings": [],
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "abi"
      ]
    }
  }
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[{"internalType":"string","name":"tokenBaseURI_","type":"string"},{"internalType":"address","name":"_whitelistSigner","type":"address"}],"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":"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"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"oldSigner","type":"address"},{"indexed":false,"internalType":"address","name":"newSigner","type":"address"}],"name":"WhitelistSignerSettled","type":"event"},{"inputs":[],"name":"AVARIK_GIFT","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"AVARIK_MAX","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"AVARIK_PRICE","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"AVARIK_PRIVATE","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"PRESALE_TYPEHASH","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"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":"contractURI","outputs":[{"internalType":"string","name":"","type":"string"}],"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":"receivers","type":"address[]"}],"name":"gift","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"giftedAmount","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"operator","type":"address"}],"name":"isApprovedForAll","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"isPresaleActive","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"ownerOf","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenQuantity","type":"uint256"},{"internalType":"uint256","name":"maxCount","type":"uint256"},{"internalType":"bytes","name":"signature","type":"bytes"}],"name":"presaleBuy","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"presaleLive","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"addr","type":"address"}],"name":"presalePurchasedCount","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"presalerListPurchases","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"privateAmountMinted","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"bytes","name":"_data","type":"bytes"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"operator","type":"address"},{"internalType":"bool","name":"approved","type":"bool"}],"name":"setApprovalForAll","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"URI","type":"string"}],"name":"setBaseURI","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"URI","type":"string"}],"name":"setContractURI","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"URI","type":"string"}],"name":"setDefaultBaseURI","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_whitelistSigner","type":"address"}],"name":"setWhitelistSigner","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":[],"name":"togglePresaleStatus","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"index","type":"uint256"}],"name":"tokenByIndex","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"uint256","name":"index","type":"uint256"}],"name":"tokenOfOwnerByIndex","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"tokenURI","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"transferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"whitelistSigner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"withdraw","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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

0000000000000000000000000000000000000000000000000000000000000040000000000000000000000000537f4aff63f36f7986067e679f0b53c502f5df22000000000000000000000000000000000000000000000000000000000000004468747470733a2f2f697066732e696f2f697066732f516d59426477365675716f6a735a626347734a725941314655357274473342595a4c546e3463314339356a5942572f00000000000000000000000000000000000000000000000000000000

-----Decoded View---------------
Arg [0] : tokenBaseURI_ (string): https://ipfs.io/ipfs/QmYBdw6VuqojsZbcGsJrYA1FU5rtG3BYZLTn4c1C95jYBW/
Arg [1] : _whitelistSigner (address): 0x537f4aff63F36F7986067E679f0B53C502F5dF22

-----Encoded View---------------
6 Constructor Arguments found :
Arg [0] : 0000000000000000000000000000000000000000000000000000000000000040
Arg [1] : 000000000000000000000000537f4aff63f36f7986067e679f0b53c502f5df22
Arg [2] : 0000000000000000000000000000000000000000000000000000000000000044
Arg [3] : 68747470733a2f2f697066732e696f2f697066732f516d59426477365675716f
Arg [4] : 6a735a626347734a725941314655357274473342595a4c546e3463314339356a
Arg [5] : 5942572f00000000000000000000000000000000000000000000000000000000