// File: @openzeppelin/contracts/access/Ownable.sol



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

pragma solidity ^0.8.20;

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

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

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

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

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

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

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

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

    /**
     * @dev Throws if the sender is not the owner.
     */
    function _checkOwner() internal view virtual {
        if (owner() != _msgSender()) {
            revert OwnableUnauthorizedAccount(_msgSender());
        }
    }

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

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Can only be called by the current owner.
     */
    function transferOwnership(address newOwner) public virtual onlyOwner {
        if (newOwner == address(0)) {
            revert OwnableInvalidOwner(address(0));
        }
        _transferOwnership(newOwner);
    }

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

// File: @openzeppelin/contracts/interfaces/draft-IERC6093.sol



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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

// File: @openzeppelin/contracts/token/ERC20/IERC20.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.20;

/**
 * @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 value of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

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

    /**
     * @dev Moves a `value` amount of 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 value) 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 a `value` amount of tokens 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 value) external returns (bool);

    /**
     * @dev Moves a `value` amount of tokens from `from` to `to` using the
     * allowance mechanism. `value` 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 value) external returns (bool);
}

// File: @openzeppelin/contracts/token/ERC20/extensions/IERC20Permit.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/extensions/IERC20Permit.sol)

pragma solidity ^0.8.20;

/**
 * @dev Interface of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in
 * https://eips.ethereum.org/EIPS/eip-2612[EIP-2612].
 *
 * Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by
 * presenting a message signed by the account. By not relying on {IERC20-approve}, the token holder account doesn't
 * need to send a transaction, and thus is not required to hold Ether at all.
 *
 * ==== Security Considerations
 *
 * There are two important considerations concerning the use of `permit`. The first is that a valid permit signature
 * expresses an allowance, and it should not be assumed to convey additional meaning. In particular, it should not be
 * considered as an intention to spend the allowance in any specific way. The second is that because permits have
 * built-in replay protection and can be submitted by anyone, they can be frontrun. A protocol that uses permits should
 * take this into consideration and allow a `permit` call to fail. Combining these two aspects, a pattern that may be
 * generally recommended is:
 *
 * ```solidity
 * function doThingWithPermit(..., uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s) public {
 *     try token.permit(msg.sender, address(this), value, deadline, v, r, s) {} catch {}
 *     doThing(..., value);
 * }
 *
 * function doThing(..., uint256 value) public {
 *     token.safeTransferFrom(msg.sender, address(this), value);
 *     ...
 * }
 * ```
 *
 * Observe that: 1) `msg.sender` is used as the owner, leaving no ambiguity as to the signer intent, and 2) the use of
 * `try/catch` allows the permit to fail and makes the code tolerant to frontrunning. (See also
 * {SafeERC20-safeTransferFrom}).
 *
 * Additionally, note that smart contract wallets (such as Argent or Safe) are not able to produce permit signatures, so
 * contracts should have entry points that don't rely on permit.
 */
interface IERC20Permit {
    /**
     * @dev Sets `value` as the allowance of `spender` over ``owner``'s tokens,
     * given ``owner``'s signed approval.
     *
     * IMPORTANT: The same issues {IERC20-approve} has related to transaction
     * ordering also apply here.
     *
     * Emits an {Approval} event.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     * - `deadline` must be a timestamp in the future.
     * - `v`, `r` and `s` must be a valid `secp256k1` signature from `owner`
     * over the EIP712-formatted function arguments.
     * - the signature must use ``owner``'s current nonce (see {nonces}).
     *
     * For more information on the signature format, see the
     * https://eips.ethereum.org/EIPS/eip-2612#specification[relevant EIP
     * section].
     *
     * CAUTION: See Security Considerations above.
     */
    function permit(
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external;

    /**
     * @dev Returns the current nonce for `owner`. This value must be
     * included whenever a signature is generated for {permit}.
     *
     * Every successful call to {permit} increases ``owner``'s nonce by one. This
     * prevents a signature from being used multiple times.
     */
    function nonces(address owner) external view returns (uint256);

    /**
     * @dev Returns the domain separator used in the encoding of the signature for {permit}, as defined by {EIP712}.
     */
    // solhint-disable-next-line func-name-mixedcase
    function DOMAIN_SEPARATOR() external view returns (bytes32);
}

// File: @openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/utils/SafeERC20.sol)

pragma solidity ^0.8.20;

import {IERC20} from "../IERC20.sol";
import {IERC20Permit} from "../extensions/IERC20Permit.sol";
import {Address} from "../../../utils/Address.sol";

/**
 * @title SafeERC20
 * @dev Wrappers around ERC20 operations that throw on failure (when the token
 * contract returns false). Tokens that return no value (and instead revert or
 * throw on failure) are also supported, non-reverting calls are assumed to be
 * successful.
 * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,
 * which allows you to call the safe operations as `token.safeTransfer(...)`, etc.
 */
library SafeERC20 {
    using Address for address;

    /**
     * @dev An operation with an ERC20 token failed.
     */
    error SafeERC20FailedOperation(address token);

    /**
     * @dev Indicates a failed `decreaseAllowance` request.
     */
    error SafeERC20FailedDecreaseAllowance(address spender, uint256 currentAllowance, uint256 requestedDecrease);

    /**
     * @dev Transfer `value` amount of `token` from the calling contract to `to`. If `token` returns no value,
     * non-reverting calls are assumed to be successful.
     */
    function safeTransfer(IERC20 token, address to, uint256 value) internal {
        _callOptionalReturn(token, abi.encodeCall(token.transfer, (to, value)));
    }

    /**
     * @dev Transfer `value` amount of `token` from `from` to `to`, spending the approval given by `from` to the
     * calling contract. If `token` returns no value, non-reverting calls are assumed to be successful.
     */
    function safeTransferFrom(IERC20 token, address from, address to, uint256 value) internal {
        _callOptionalReturn(token, abi.encodeCall(token.transferFrom, (from, to, value)));
    }

    /**
     * @dev Increase the calling contract's allowance toward `spender` by `value`. If `token` returns no value,
     * non-reverting calls are assumed to be successful.
     */
    function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal {
        uint256 oldAllowance = token.allowance(address(this), spender);
        forceApprove(token, spender, oldAllowance + value);
    }

    /**
     * @dev Decrease the calling contract's allowance toward `spender` by `requestedDecrease`. If `token` returns no
     * value, non-reverting calls are assumed to be successful.
     */
    function safeDecreaseAllowance(IERC20 token, address spender, uint256 requestedDecrease) internal {
        unchecked {
            uint256 currentAllowance = token.allowance(address(this), spender);
            if (currentAllowance < requestedDecrease) {
                revert SafeERC20FailedDecreaseAllowance(spender, currentAllowance, requestedDecrease);
            }
            forceApprove(token, spender, currentAllowance - requestedDecrease);
        }
    }

    /**
     * @dev Set the calling contract's allowance toward `spender` to `value`. If `token` returns no value,
     * non-reverting calls are assumed to be successful. Meant to be used with tokens that require the approval
     * to be set to zero before setting it to a non-zero value, such as USDT.
     */
    function forceApprove(IERC20 token, address spender, uint256 value) internal {
        bytes memory approvalCall = abi.encodeCall(token.approve, (spender, value));

        if (!_callOptionalReturnBool(token, approvalCall)) {
            _callOptionalReturn(token, abi.encodeCall(token.approve, (spender, 0)));
            _callOptionalReturn(token, approvalCall);
        }
    }

    /**
     * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
     * on the return value: the return value is optional (but if data is returned, it must not be false).
     * @param token The token targeted by the call.
     * @param data The call data (encoded using abi.encode or one of its variants).
     */
    function _callOptionalReturn(IERC20 token, bytes memory data) private {
        // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
        // we're implementing it ourselves. We use {Address-functionCall} to perform this call, which verifies that
        // the target address contains contract code and also asserts for success in the low-level call.

        bytes memory returndata = address(token).functionCall(data);
        if (returndata.length != 0 && !abi.decode(returndata, (bool))) {
            revert SafeERC20FailedOperation(address(token));
        }
    }

    /**
     * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
     * on the return value: the return value is optional (but if data is returned, it must not be false).
     * @param token The token targeted by the call.
     * @param data The call data (encoded using abi.encode or one of its variants).
     *
     * This is a variant of {_callOptionalReturn} that silents catches all reverts and returns a bool instead.
     */
    function _callOptionalReturnBool(IERC20 token, bytes memory data) private returns (bool) {
        // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
        // we're implementing it ourselves. We cannot use {Address-functionCall} here since this should return false
        // and not revert is the subcall reverts.

        (bool success, bytes memory returndata) = address(token).call(data);
        return success && (returndata.length == 0 || abi.decode(returndata, (bool))) && address(token).code.length > 0;
    }
}

// File: @openzeppelin/contracts/token/ERC721/ERC721.sol



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

pragma solidity ^0.8.20;

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

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

    // Token name
    string private _name;

    // Token symbol
    string private _symbol;

    mapping(uint256 tokenId => address) private _owners;

    mapping(address owner => uint256) private _balances;

    mapping(uint256 tokenId => address) private _tokenApprovals;

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

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

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

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

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

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

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

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

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

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

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

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

        return _getApproved(tokenId);
    }

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

        _owners[tokenId] = to;

        emit Transfer(from, to, tokenId);

        return from;
    }

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

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

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

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

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

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

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

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

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

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

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

        _tokenApprovals[tokenId] = to;
    }

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

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

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

// File: @openzeppelin/contracts/token/ERC721/IERC721.sol



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

pragma solidity ^0.8.20;

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

/**
 * @dev Required interface of an ERC721 compliant contract.
 */
interface IERC721 is IERC165 {
    /**
     * @dev Emitted when `tokenId` token is transferred from `from` to `to`.
     */
    event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);

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

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

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

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

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

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

    /**
     * @dev Transfers `tokenId` token from `from` to `to`.
     *
     * WARNING: Note that the caller is responsible to confirm that the recipient is capable of receiving ERC721
     * or else they may be permanently lost. Usage of {safeTransferFrom} prevents loss, though the caller must
     * understand this adds an external call which potentially creates a reentrancy vulnerability.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must be owned by `from`.
     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(address from, address to, uint256 tokenId) external;

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

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

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

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

// File: @openzeppelin/contracts/token/ERC721/IERC721Receiver.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC721/IERC721Receiver.sol)

pragma solidity ^0.8.20;

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

// File: @openzeppelin/contracts/token/ERC721/extensions/ERC721Enumerable.sol



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

pragma solidity ^0.8.20;

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

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

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

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

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

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

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

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

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

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

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

        return previousOwner;
    }

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

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

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

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

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

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

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

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

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

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

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

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

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

// File: @openzeppelin/contracts/token/ERC721/extensions/IERC721Enumerable.sol



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

pragma solidity ^0.8.20;

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

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

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

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

// File: @openzeppelin/contracts/token/ERC721/extensions/IERC721Metadata.sol



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

pragma solidity ^0.8.20;

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

/**
 * @title ERC-721 Non-Fungible Token Standard, optional metadata extension
 * @dev See https://eips.ethereum.org/EIPS/eip-721
 */
interface IERC721Metadata is IERC721 {
    /**
     * @dev Returns the token collection name.
     */
    function name() external view returns (string memory);

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

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

// File: @openzeppelin/contracts/utils/Address.sol



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

pragma solidity ^0.8.20;

/**
 * @dev Collection of functions related to the address type
 */
library Address {
    /**
     * @dev The ETH balance of the account is not enough to perform the operation.
     */
    error AddressInsufficientBalance(address account);

    /**
     * @dev There's no code at `target` (it is not a contract).
     */
    error AddressEmptyCode(address target);

    /**
     * @dev A call to an address target failed. The target may have reverted.
     */
    error FailedInnerCall();

    /**
     * @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://consensys.net/diligence/blog/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/v0.8.20/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
     */
    function sendValue(address payable recipient, uint256 amount) internal {
        if (address(this).balance < amount) {
            revert AddressInsufficientBalance(address(this));
        }

        (bool success, ) = recipient.call{value: amount}("");
        if (!success) {
            revert FailedInnerCall();
        }
    }

    /**
     * @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 or custom error, it is bubbled
     * up by this function (like regular Solidity function calls). However, if
     * the call reverted with no returned reason, this function reverts with a
     * {FailedInnerCall} error.
     *
     * 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.
     */
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0);
    }

    /**
     * @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`.
     */
    function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
        if (address(this).balance < value) {
            revert AddressInsufficientBalance(address(this));
        }
        (bool success, bytes memory returndata) = target.call{value: value}(data);
        return verifyCallResultFromTarget(target, success, returndata);
    }

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

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

    /**
     * @dev Tool to verify that a low level call to smart-contract was successful, and reverts if the target
     * was not a contract or bubbling up the revert reason (falling back to {FailedInnerCall}) in case of an
     * unsuccessful call.
     */
    function verifyCallResultFromTarget(
        address target,
        bool success,
        bytes memory returndata
    ) internal view returns (bytes memory) {
        if (!success) {
            _revert(returndata);
        } else {
            // only check if target is a contract if the call was successful and the return data is empty
            // otherwise we already know that it was a contract
            if (returndata.length == 0 && target.code.length == 0) {
                revert AddressEmptyCode(target);
            }
            return returndata;
        }
    }

    /**
     * @dev Tool to verify that a low level call was successful, and reverts if it wasn't, either by bubbling the
     * revert reason or with a default {FailedInnerCall} error.
     */
    function verifyCallResult(bool success, bytes memory returndata) internal pure returns (bytes memory) {
        if (!success) {
            _revert(returndata);
        } else {
            return returndata;
        }
    }

    /**
     * @dev Reverts with returndata if present. Otherwise reverts with {FailedInnerCall}.
     */
    function _revert(bytes memory returndata) 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 FailedInnerCall();
        }
    }
}

// File: @openzeppelin/contracts/utils/Context.sol



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

pragma solidity ^0.8.20;

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

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

// File: @openzeppelin/contracts/utils/Strings.sol



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

pragma solidity ^0.8.20;

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

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

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

    /**
     * @dev Converts a `uint256` to its ASCII `string` decimal representation.
     */
    function toString(uint256 value) internal pure returns (string memory) {
        unchecked {
            uint256 length = Math.log10(value) + 1;
            string memory buffer = new string(length);
            uint256 ptr;
            /// @solidity memory-safe-assembly
            assembly {
                ptr := add(buffer, add(32, length))
            }
            while (true) {
                ptr--;
                /// @solidity memory-safe-assembly
                assembly {
                    mstore8(ptr, byte(mod(value, 10), HEX_DIGITS))
                }
                value /= 10;
                if (value == 0) break;
            }
            return buffer;
        }
    }

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

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

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

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

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

// File: @openzeppelin/contracts/utils/introspection/ERC165.sol



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

pragma solidity ^0.8.20;

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

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

// File: @openzeppelin/contracts/utils/introspection/IERC165.sol



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

pragma solidity ^0.8.20;

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

// File: @openzeppelin/contracts/utils/math/Math.sol



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

pragma solidity ^0.8.20;

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

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

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

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

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

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

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

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

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

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

    /**
     * @dev Returns the ceiling of the division of two numbers.
     *
     * This differs from standard division with `/` in that it rounds towards infinity instead
     * of rounding towards zero.
     */
    function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) {
        if (b == 0) {
            // Guarantee the same behavior as in a regular Solidity division.
            return a / b;
        }

        // (a + b - 1) / b can overflow on addition, so we distribute.
        return a == 0 ? 0 : (a - 1) / b + 1;
    }

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

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

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

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

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

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

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

            uint256 twos = denominator & (0 - denominator);
            assembly {
                // Divide denominator by twos.
                denominator := div(denominator, twos)

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

    /**
     * @dev Return the log in base 256, following the selected rounding direction, of a positive value.
     * Returns 0 if given 0.
     */
    function log256(uint256 value, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = log256(value);
            return result + (unsignedRoundsUp(rounding) && 1 << (result << 3) < value ? 1 : 0);
        }
    }

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

// File: @openzeppelin/contracts/utils/math/SignedMath.sol



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

pragma solidity ^0.8.20;

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

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

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

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

// File: contracts/NFTContract.sol



//SPDX-License-Identifier: MIT
pragma solidity 0.8.23;

//import "hardhat/console.sol";
import "@openzeppelin/contracts/token/ERC721/ERC721.sol";
import "@openzeppelin/contracts/token/ERC721/extensions/ERC721Enumerable.sol";
import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
import "@openzeppelin/contracts/access/Ownable.sol";
import "./helpers/utils.sol";
import "./helpers/errors.sol";
import "./interfaces/IStakingContract.sol";

contract NFTContract is ERC721, ERC721Enumerable, Ownable, Utils {
    using SafeERC20 for IERC20;

    uint8 private constant RARITY_TYPE_SUPPLY = 210;
    string public metadataURI;
    string public typeImageURI;

    address private immutable proxyRegistryAddress;
    address private immutable multiSignWithdrawAddress;
    address private immutable multiSignStakingControlAddress;
    address private immutable wethTokenAddress;
    address private immutable xbtcTokenAddress;
    address private lootboxContractAddress;
    address private questsContractAddress;
    address[] private currencyList;

    uint8 private typeCounter;
    uint16 public totalPresaleRemain;
    uint16 public totalQuestsRemain;
    uint16 public totalTeamRemain;
    uint16 public totalAdvisorRemain;
    uint16 public totalLootboxRemain;
    uint64 private vestingEnd;
    uint64 private vestingStart;

    address public stakingDefaultContract;
    address[] public stakingContracts;
    mapping(uint256 => address) public nftStakingAddress;

    mapping(uint8 => RarityType) public rarityTypes;
    mapping(uint256 => uint8) public nftRarityTypes;
    mapping(RarityNFT => mapping(address => uint256)) private presalePrices;
    mapping(DistributionType => uint8) private distributionTypeSupply;

    // Quests
    mapping(uint256 => bool) public firstHandNFTs;

    // 0 - common, 1 - majestic, 2 - epic, 3 - legendary
    mapping(address => uint16[]) public teamUserMinted;
    mapping(address => uint16[]) public teamUserNftCount;

    struct RarityType {
        uint8 id;
        string title;
        RarityNFT rarity;
        uint16 hashRate;
        uint16 totalMinted;
        uint16 firstId;
        uint8[5] remains; // 0 - presale, 1 - quests, 2 - team, 3 - advisor, 4 - lootbox
    }

    struct PresalePrices {
        RarityNFT rarity;
        address[] currencyList;
        uint256[] prices;
    }

    constructor(
        address _initialOwner, string memory _name, string memory _symbol,
        string memory _metadataURI, string memory _typeImageURI,
        address _proxyRegistryAddress, address _multiSignWithdrawAddress, address _multiSignStakingControlAddress,
        address _wethTokenAddress, address _xbtcTokenAddress
    )
    ERC721(_name, _symbol)
    Ownable(_initialOwner)
    {
        metadataURI = _metadataURI;
        typeImageURI = _typeImageURI;
        proxyRegistryAddress = _proxyRegistryAddress;
        multiSignWithdrawAddress = _multiSignWithdrawAddress;
        multiSignStakingControlAddress = _multiSignStakingControlAddress;
        wethTokenAddress = _wethTokenAddress;
        xbtcTokenAddress = _xbtcTokenAddress;

        vestingStart = uint64(block.timestamp + 1 hours);
        vestingEnd = uint64(block.timestamp + 5 * 365 days);

        distributionTypeSupply[DistributionType.Presale] = 54;
        distributionTypeSupply[DistributionType.Quests] = 89;
        distributionTypeSupply[DistributionType.Team] = 19;
        distributionTypeSupply[DistributionType.Advisor] = 6;
        distributionTypeSupply[DistributionType.Lootbox] = 42;
    }

    // ----------- Public/External ------------

    function nftHashrate(uint256 _tokenId)
    external view
    returns (uint16)
    {
        RarityType storage rarityType = rarityTypes[nftRarityTypes[_tokenId]];
        if (rarityType.id == 0) {
            revert NFT_WrongTokenId(_tokenId);
        }
        return rarityType.hashRate;
    }

    function nftLootboxRemains(uint8 _typeId)
    external view
    returns (uint8)
    {
        RarityType storage rarityType = rarityTypes[_typeId];
        if (rarityType.id == 0) {
            revert NFT_WrongTypeId(_typeId);
        }
        return rarityType.remains[uint8(DistributionType.Lootbox)];
    }

    function getAvailableTypes(DistributionType _distribution, RarityNFT _rarityId)
    public view
    returns (uint8[] memory)
    {
        uint8 _innerCounter = 0;
        uint8[] memory _allTypes = new uint8[](typeCounter);

        for (uint8 _i = 1; _i <= typeCounter; ++_i) {
            RarityType storage rarityType = rarityTypes[_i];
            if (rarityType.rarity == _rarityId && rarityType.remains[uint8(_distribution)] > 0) {
                _allTypes[_innerCounter] = rarityType.id;
                _innerCounter += 1;
            }
        }

        // remove empty elements
        uint8[] memory _result = new uint8[](_innerCounter);
        for (uint8 _i = 0; _i < _innerCounter; ++_i) {
            _result[_i] = _allTypes[_i];
        }

        return _result;
    }

    // @title Mint NFTs on PreSale
    // @param _typeIds: array rarity type id
    // @param _amounts: array how much NFT mint
    // @param _currency: token that used for payment
    function presaleMint(uint8[] calldata _typeIds, uint8[] calldata _amounts, address _currency)
    external
    {
        if (_typeIds.length == 0 || _typeIds.length != _amounts.length) {
            revert NFT_WrongArgumentsCount();
        }
        if (_currency == address(0)) {
            revert NFT_WrongInputAddress();
        }

        for (uint8 _i = 0; _i < _typeIds.length; ++_i) {
            RarityType storage rarityType = rarityTypes[_typeIds[_i]];
            if (rarityType.id == 0) {
                revert NFT_WrongTypeId(_typeIds[_i]);
            }
            if (totalPresaleRemain < _amounts[_i]) {
                revert NFT_NoSupply("Total Presale", _typeIds[_i]);
            }
            if (rarityType.remains[uint8(DistributionType.Presale)] < _amounts[_i]) {
                revert NFT_NoSupply("Presale", _typeIds[_i]);
            }
            if (presalePrices[rarityType.rarity][_currency] == 0) {
                revert NFT_WrongCurrency();
            }

            uint256 _paymentAmount = presalePrices[rarityType.rarity][_currency] * _amounts[_i];
            SafeERC20.safeTransferFrom(IERC20(_currency), msg.sender, multiSignWithdrawAddress, _paymentAmount);

            rarityType.remains[uint8(DistributionType.Presale)] -= _amounts[_i];
            totalPresaleRemain -= _amounts[_i];
            _mintBatchAndStake(msg.sender, _typeIds[_i], _amounts[_i]);
        }
    }

    // @title Mint NFTs on PreSale using ETH
    // @param _typeIds: array rarity type id
    // @param _amounts: array how much NFT mint
    function presaleMintETH(uint8[] calldata _typeIds, uint8[] calldata _amounts)
    external payable
    {
        if (_typeIds.length == 0 || _typeIds.length != _amounts.length) {
            revert NFT_WrongArgumentsCount();
        }
        if (msg.value == 0) {
            revert NFT_WrongPaymentAmount();
        }

        bool success = payable(multiSignWithdrawAddress).send(msg.value);
        require(success, "NFT: ETH transfer failed");

        uint256 _paymentAmount = 0;
        for (uint8 _i = 0; _i < _typeIds.length; ++_i) {
            RarityType storage rarityType = rarityTypes[_typeIds[_i]];
            if (rarityType.id == 0) {
                revert NFT_WrongTypeId(_typeIds[_i]);
            }
            if (totalPresaleRemain < _amounts[_i]) {
                revert NFT_NoSupply("Total Presale", _typeIds[_i]);
            }
            if (rarityType.remains[uint8(DistributionType.Presale)] < _amounts[_i]) {
                revert NFT_NoSupply("Presale", _typeIds[_i]);
            }
            if (presalePrices[rarityType.rarity][wethTokenAddress] == 0) {
                revert NFT_WrongCurrency();
            }

            _paymentAmount += presalePrices[rarityType.rarity][wethTokenAddress] * _amounts[_i];
            rarityType.remains[uint8(DistributionType.Presale)] -= _amounts[_i];
            totalPresaleRemain -= _amounts[_i];

            _mintBatchAndStake(msg.sender, _typeIds[_i], _amounts[_i]);
        }

        if (msg.value != _paymentAmount) {
            revert NFT_WrongPaymentAmount();
        }
    }

    // @title Open Lootbox
    // @param _owner: lootbox owner
    // @param _typeId: lootbox type id
    function lootboxMintNFT(address _owner, uint8 _typeId)
    external
    {
        RarityType storage rarityType = rarityTypes[_typeId];

        if (_owner == address(0)) {
            revert NFT_WrongInputAddress();
        }
        if (totalLootboxRemain == 0) {
            revert NFT_NoSupply("Total Lootbox", _typeId);
        }
        if (msg.sender != lootboxContractAddress) {
            revert NFT_NoAccessToCall();
        }
        if (rarityType.id == 0) {
            revert NFT_WrongTypeId(_typeId);
        }
        if (rarityType.remains[uint8(DistributionType.Lootbox)] == 0) {
            revert NFT_NoSupply("Lootbox", _typeId);
        }

        totalLootboxRemain -= 1;
        rarityType.remains[uint8(DistributionType.Lootbox)] -= 1;
        _mintOneAndStake(_owner, _typeId);
    }

    // @title Team mint NFT with vesting
    function teamMint(RarityNFT _rarity)
    external
    {
        if (totalTeamRemain == 0) {
            revert NFT_NoSupply("Total Team", 0);
        }
        if (teamUserNftCount[msg.sender].length == 0) {
            revert NFT_NoVestingAmount();
        }

        uint16 _unlockedNFTs = getUnlockedNFTCount(msg.sender, uint8(_rarity));
        if (_unlockedNFTs > 100) {
            _unlockedNFTs = 100;
        }

        if (_unlockedNFTs > 0) {
            teamUserMinted[msg.sender][uint8(_rarity)] += _unlockedNFTs;
            for (uint8 _j = 0; _j < _unlockedNFTs; ++_j) {
                uint8[] memory _availableTypes = getAvailableTypes(DistributionType.Team, _rarity);
                uint8 _typeId = _availableTypes[uint8(randomNum(_availableTypes.length))];
                _mintOneAndStake(msg.sender, _typeId);
            }
        }

        totalTeamRemain -= _unlockedNFTs;
    }

    // @title Community mint NFT by complete a quests
    // @param _amount: how mutch NFT mint
    function questCompleteMint(address _owner, uint8 _typeId)
    external
    {
        RarityType storage rarityType = rarityTypes[_typeId];

        if (_owner == address(0)) {
            revert NFT_WrongInputAddress();
        }
        if (totalQuestsRemain == 0) {
            revert NFT_NoSupply("Total Quests", _typeId);
        }
        if (msg.sender != questsContractAddress) {
            revert NFT_NoAccessToCall();
        }
        if (rarityType.id == 0) {
            revert NFT_WrongTypeId(_typeId);
        }
        if (rarityType.remains[uint8(DistributionType.Quests)] == 0) {
            revert NFT_NoSupply("Quests", _typeId);
        }

        totalQuestsRemain -= 1;
        rarityType.remains[uint8(DistributionType.Quests)] -= 1;
        _mintOneAndStake(_owner, _typeId);
    }

    // @title Get unlocked NFTs count for team member
    function getUnlockedNFTCount(address _member, uint8 _rarityIndex)
    public view
    returns (uint16)
    {
        if (_member == address(0)) {
            revert NFT_WrongInputAddress();
        }
        if (teamUserNftCount[_member][_rarityIndex] == 0) {
            revert NFT_NoVestingAmount();
        }
        if (block.timestamp < vestingStart || vestingEnd <= vestingStart) {
            revert NFT_NoVestingEnabled();
        }

        uint16 _unlockedNFTCount;
        if (block.timestamp >= vestingEnd) {
            _unlockedNFTCount = teamUserNftCount[_member][_rarityIndex];
        } else {
            uint64 _duration = vestingEnd - vestingStart;
            _unlockedNFTCount = uint16((teamUserNftCount[_member][_rarityIndex] * (block.timestamp - vestingStart)) / _duration);
        }

        return _unlockedNFTCount - teamUserMinted[_member][_rarityIndex];
    }

    // @title Change staking contract address for NFT
    function changeStakingContract(
        uint256[] calldata _tokenIdList, address _newStakingAddress
    )
    external
    {
        if (_newStakingAddress == address(0)) {
            revert NFT_WrongInputAddress();
        }
        if (!_isStakingContractExists(_newStakingAddress)) {
            revert NFT_WrongStakingAddress();
        }

        for (uint8 _i = 0; _i < _tokenIdList.length; ++_i) {
            uint256 _tokenId = _tokenIdList[_i];
            if (msg.sender != ownerOf(_tokenId)) {
                revert NFT_NoAccessToCall();
            }

            IStakingContract _stakingContract = IStakingContract(nftStakingAddress[_tokenId]);

            // Unstake NFT
            uint256[] memory _tokenIdArray = new uint256[](1);
            _tokenIdArray[0] = _tokenId;
            _stakingContract.unstake(_tokenIdArray);

            // Change staking contract address
            nftStakingAddress[_tokenId] = _newStakingAddress;
        }

        IStakingContract _newStakingContract = IStakingContract(_newStakingAddress);
        _newStakingContract.stake(_tokenIdList);
    }

    function tokenURI(uint256 _tokenId)
    public view override
    returns (string memory)
    {
        return string.concat("ipfs://", metadataURI, "/", Strings.toString(_tokenId), ".json");
    }

    function contractURI()
    public view
    returns (string memory)
    {
        return string.concat("ipfs://", metadataURI, "/collection.json");
    }

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

    function isApprovedForAll(address _owner, address _operator)
    public view
    override(ERC721, IERC721)
    returns (bool)
    {
        if (proxyRegistryAddress == _operator) {
            return true;
        }

        return super.isApprovedForAll(_owner, _operator);
    }

    // @title Get all rarity types
    function getAllRarityTypes()
    external view
    returns (RarityType[] memory)
    {
        RarityType[] memory _rarityTypes = new RarityType[](typeCounter);
        for (uint8 _i = 1; _i <= typeCounter; ++_i) {
            _rarityTypes[_i - 1] = rarityTypes[_i];
        }

        return _rarityTypes;
    }

    // @title Get all presalePrices
    function getAllPresalePrices()
    external view
    returns (PresalePrices[] memory)
    {
        PresalePrices[] memory _presalePricesAll = new PresalePrices[](4);
        address[] memory _currencyList = new address[](currencyList.length);
        for (uint8 _i = 0; _i < currencyList.length; ++_i) {
            _currencyList[_i] = currencyList[_i];
        }

        for (uint8 _i = 0; _i < 4; ++_i) {
            RarityNFT _rarity = RarityNFT(_i);
            uint256[] memory _presalePrices = new uint256[](currencyList.length);

            for (uint8 _j = 0; _j < currencyList.length; ++_j) {
                _presalePrices[_j] = presalePrices[_rarity][currencyList[_j]];
            }

            _presalePricesAll[_i] = PresalePrices({
                rarity: _rarity,
                currencyList: _currencyList,
                prices: _presalePrices
            });
        }

        return _presalePricesAll;
    }

    function bulkTransfer(address[] calldata _to, uint256[] calldata _tokenId)
    external
    {
        if (_to.length != _tokenId.length) {
            revert NFT_WrongArgumentsCount();
        }

        for (uint8 _i = 0; _i < _to.length; ++_i) {
            _safeTransfer(msg.sender, _to[_i], _tokenId[_i], "");
        }
    }

    // -------------- Internal ---------------

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

    // @title NFT mint and transfer
    function _update(address _to, uint256 _tokenId, address _auth)
    internal
    override(ERC721, ERC721Enumerable)
    returns (address)
    {
        if (_ownerOf(_tokenId) != address(0)) {
            firstHandNFTs[_tokenId] = false;

            // Transfer NFT: claim staking rewards and set new owner
            IStakingContract _stakingContract = IStakingContract(nftStakingAddress[_tokenId]);
            _stakingContract.restakeOnSell(_tokenId, _to);
        }

        return super._update(_to, _tokenId, _auth);
    }

    // @title Mint NFT batch
    function _mintBatchAndStake(address _owner, uint8 _typeId, uint8 _amount)
    private
    {
        if (_amount == 0) {
            revert NFT_WrongInputUint();
        }
        if (_owner == address(0)) {
            revert NFT_WrongInputAddress();
        }

        IStakingContract _stakingContract = IStakingContract(stakingDefaultContract);
        uint256[] memory _tokenIdArray = new uint256[](_amount);

        for (uint8 _i = 0; _i < _amount; ++_i) {
            _tokenIdArray[_i] = _mintOne(_owner, _typeId);
        }

        // Start staking
        _stakingContract.stake(_tokenIdArray);
    }

    // @title Mint one NFT
    function _mintOneAndStake(address _owner, uint8 _typeId)
    private
    {
        if (_owner == address(0)) {
            revert NFT_WrongInputAddress();
        }

        IStakingContract _stakingContract = IStakingContract(stakingDefaultContract);
        uint256[] memory _tokenIdArray = new uint256[](1);

        _tokenIdArray[0] = _mintOne(_owner, _typeId);

        // Start staking
        _stakingContract.stake(_tokenIdArray);
    }

    function _mintOne(address _owner, uint8 _typeId)
    private
    returns (uint256)
    {
        RarityType storage rarityType = rarityTypes[_typeId];

        if (rarityType.id == 0) {
            revert NFT_WrongTypeId(_typeId);
        }
        if (rarityType.totalMinted > RARITY_TYPE_SUPPLY) {
            revert NFT_NoSupply("Total Minted", _typeId);
        }

        uint256 _tokenId = uint256(rarityType.firstId + rarityType.totalMinted);
        rarityType.totalMinted += 1;

        _safeMint(_owner, _tokenId);
        nftRarityTypes[_tokenId] = rarityType.id;
        nftStakingAddress[_tokenId] = stakingDefaultContract;

        firstHandNFTs[_tokenId] = true;
        return _tokenId;
    }

    // @title Check if staking contract address exists
    function _isStakingContractExists(address _stakingAddress)
    internal view
    returns (bool)
    {
        for (uint8 _i = 0; _i < stakingContracts.length; ++_i) {
            if (stakingContracts[_i] == _stakingAddress) {
                return true;
            }
        }
        return false;
    }

    // ------------- Only Owner --------------

    // @title Update Lootbox & Quests contract address
    // @param _lootboxAddress: lootbox address
    // @param _questsAddress: quests address
    function updateLinkedAddress(
        address _lootboxAddress, address _questsAddress
    )
    external
    onlyOwner
    {
        if (_lootboxAddress == address(0) || _questsAddress == address(0)) {
            revert NFT_WrongInputAddress();
        }

        lootboxContractAddress = _lootboxAddress;
        questsContractAddress = _questsAddress;
    }

    // @title Add new rarity type
    // @param _rarity: rarity type
    // @param _titles: array of titles
    // @param _hashRate: array of type hashRate
    function addRarityTypes(RarityNFT _rarity, string[] calldata _titles, uint16[] calldata _hashRate)
    external
    onlyOwner
    {
        if (_titles.length == 0 || _titles.length != _hashRate.length) {
            revert NFT_WrongArgumentsCount();
        }

        uint16 _itemsCount = uint16(_titles.length);
        totalPresaleRemain += uint16(distributionTypeSupply[DistributionType.Presale]) * _itemsCount;
        totalQuestsRemain += uint16(distributionTypeSupply[DistributionType.Quests]) * _itemsCount;
        totalTeamRemain += uint16(distributionTypeSupply[DistributionType.Team]) * _itemsCount;
        totalAdvisorRemain += uint16(distributionTypeSupply[DistributionType.Advisor]) * _itemsCount;
        totalLootboxRemain += uint16(distributionTypeSupply[DistributionType.Lootbox]) * _itemsCount;

        uint8[5] memory _remains = [
                        distributionTypeSupply[DistributionType.Presale],
                        distributionTypeSupply[DistributionType.Quests],
                        distributionTypeSupply[DistributionType.Team],
                        distributionTypeSupply[DistributionType.Advisor],
                        distributionTypeSupply[DistributionType.Lootbox]
            ];

        for (uint8 _i = 0; _i < _titles.length; ++_i) {
            if (typeCounter > 100) {
                revert("NFT: Only 100 types allowed");
            }

            typeCounter++;
            uint16 _firstId = uint16(RARITY_TYPE_SUPPLY) * uint16(typeCounter - 1);
            rarityTypes[typeCounter] = RarityType({
                id: typeCounter,
                title: _titles[_i],
                rarity: _rarity,
                hashRate: _hashRate[_i],
                firstId: _firstId + 1,
                totalMinted: 0,
                remains: _remains
            });
        }
    }

    // @title Mint NFT for external marketplaces by rarity
    function advisorMint(RarityNFT _rarityId)
    public
    onlyOwner
    {
        if (totalAdvisorRemain == 0) {
            revert NFT_NoSupply("Total Advisor", uint8(_rarityId));
        }

        uint8[] memory _availableTypes = getAvailableTypes(DistributionType.Advisor, _rarityId);
        for (uint8 _i = 0; _i < _availableTypes.length; ++_i) {
            uint8 _typeId = _availableTypes[_i];
            RarityType storage rarityType = rarityTypes[_typeId];
            uint8 remains = rarityType.remains[uint8(DistributionType.Advisor)];
            if (totalAdvisorRemain < remains || remains == 0) {
                continue;
            }

            _mintBatchAndStake(msg.sender, rarityType.id, remains);
            rarityType.remains[uint8(DistributionType.Advisor)] = 0;
            totalAdvisorRemain -= remains;

            if (_i > 10) {
                break;
            }
        }
    }

    // @title Add/Edit currency list and set presale prices
    function setCurrency(
        address[] calldata _currencyList,
        uint256[] calldata _ordinaryPrices, uint256[] calldata _majesticPrices,
        uint256[] calldata _epicPrices, uint256[] calldata _legendaryPrices
    )
    external
    onlyOwner
    {
        if (_currencyList.length == 0 || _currencyList.length != _ordinaryPrices.length) {
            revert NFT_WrongArgumentsCount();
        }

        for (uint8 _i = 0; _i < _currencyList.length; ++_i) {
            address _currency = _currencyList[_i];
            if (_currency == address(0)) {
                revert NFT_WrongCurrency();
            }
            if (_ordinaryPrices[_i] == 0 || _majesticPrices[_i] == 0 || _epicPrices[_i] == 0 || _legendaryPrices[_i] == 0) {
                revert NFT_WrongInputUint();
            }

            if (!addressExists(currencyList, _currency)) {
                currencyList.push(_currency);
            }

            presalePrices[RarityNFT.Ordinary][_currency] = _ordinaryPrices[_i];
            presalePrices[RarityNFT.Majestic][_currency] = _majesticPrices[_i];
            presalePrices[RarityNFT.Epic][_currency] = _epicPrices[_i];
            presalePrices[RarityNFT.Legendary][_currency] = _legendaryPrices[_i];
        }
    }

    // @title Set team user NFTs count for vesting
    function addTeamUserNftCount(
        address _member, uint16 _ordinaryCount, uint16 _majesticCount,
        uint16 _epicCount, uint16 _legendaryCount
    )
    external
    onlyOwner
    {
        if (_member == address(0)) {
            revert NFT_WrongInputAddress();
        }
        if (vestingStart <= block.timestamp) {
            revert("NFT: Vesting started, can't change rules");
        }
        if (teamUserNftCount[_member].length > 0) {
            revert("NFT: User already added");
        }

        teamUserMinted[_member] = new uint16[](4);
        teamUserNftCount[_member] = new uint16[](4);
        teamUserNftCount[_member][uint8(RarityNFT.Ordinary)] = _ordinaryCount;
        teamUserNftCount[_member][uint8(RarityNFT.Majestic)] = _majesticCount;
        teamUserNftCount[_member][uint8(RarityNFT.Epic)] = _epicCount;
        teamUserNftCount[_member][uint8(RarityNFT.Legendary)] = _legendaryCount;
    }

    // ------------ Only multiSign contract ------------

    // @title Set new default staking contract address
    function setDefaultStaking(address _stakingAddress)
    external
    {
        if (_stakingAddress == address(0)) {
            revert NFT_WrongInputAddress();
        }
        if (stakingDefaultContract != address(0) && msg.sender != multiSignStakingControlAddress) {
            revert NFT_NoAccessToCall();
        }
        if (_isStakingContractExists(_stakingAddress)) {
            revert("NFT: Staking Contract exists");
        }

        stakingDefaultContract = _stakingAddress;
        stakingContracts.push(_stakingAddress);
    }

}

// File: contracts/StakingControllerContract.sol



//SPDX-License-Identifier: MIT
pragma solidity 0.8.23;

import "./NFTContract.sol";
import "./helpers/errors.sol";

contract StakingControllerContract {
    uint8 public immutable numApprovalsRequired;
    address public nftContractAddress;

    address[] public owners;
    mapping(address => bool) public isOwner;

    // Staking
    StakingAddressProposal[] public stakingAddresses;
    mapping(uint16 => mapping(address => bool)) public isStakingApproved;

    event SubmitStakingProposal(uint16 _stakingId);
    event ApproveStakingProposal(address _owner, uint16 _stakingId);
    event ExecuteStakingProposal(uint16 _stakingId);
    event RevokeStakingProposal(address _owner, uint16 _stakingId);


    struct StakingAddressProposal {
        uint16 id;
        address new_address;
        bool executed;
    }

    modifier onlyOwner() {
        if (!isOwner[msg.sender]) {
            revert("SC: Not owner");
        }
        _;
    }

    modifier stakingExist(uint16 _stakingId) {
        if (_stakingId >= stakingAddresses.length) {
            revert("SC: Does not exist");
        }
        _;
    }

    modifier stakingNotApproved(uint16 _stakingId) {
        if (isStakingApproved[_stakingId][msg.sender]) {
            revert("SC: Already approved");
        }
        _;
    }

    modifier stakingNotExecuted(uint16 _stakingId) {
        if (stakingAddresses[_stakingId].executed) {
            revert("SC: Already executed");
        }
        _;
    }

    constructor(address[] memory _owners, uint8 _required)
    {
        if (_owners.length == 0 || _required > _owners.length) {
            revert StakingController_WrongArgumentsCount();
        }
        if (_required == 0) {
            revert StakingController_WrongInputUint();
        }

        for (uint8 _i = 0; _i < _owners.length; ++_i) {
            address _owner = _owners[_i];
            if (_owner == address(0)) {
                revert("SC: Invalid owner");
            }
            if (isOwner[_owner]) {
                revert("SC: Owner not unique");
            }

            isOwner[_owner] = true;
            owners.push(_owner);
        }

        numApprovalsRequired = _required;
    }

    // ----------- Public/External ------------

    function contractsList()
    external view
    returns (StakingAddressProposal[] memory)
    {
        return stakingAddresses;
    }

    function setNFTContractAddress(address _address)
    external
    {
        if (_address == address(0)) {
            revert StakingController_WrongInputAddress();
        }
        if (nftContractAddress != address(0)) {
            revert("SC: Contract address already set");
        }
        nftContractAddress = _address;
    }

    // --------------- Add Staking Address ----------------

    function submitNewStakingAddress(address _address)
    external
    onlyOwner
    {
        if (_address == address(0)) {
            revert StakingController_WrongInputAddress();
        }

        uint16 _stakingId = uint16(stakingAddresses.length);
        stakingAddresses.push(StakingAddressProposal({
            id: _stakingId,
            new_address: _address,
            executed: false
        }));

        emit SubmitStakingProposal(_stakingId);
    }

    function approveStakingProposal(uint16 _stakingId)
    external
    onlyOwner
    stakingExist(_stakingId)
    stakingNotApproved(_stakingId)
    stakingNotExecuted(_stakingId)
    {
        isStakingApproved[_stakingId][msg.sender] = true;
        emit ApproveStakingProposal(msg.sender, _stakingId);

        if (getStakingApprovals(_stakingId) == numApprovalsRequired) {
            StakingAddressProposal storage stakingProposal = stakingAddresses[_stakingId];
            NFTContract _nftContract = NFTContract(nftContractAddress);
            _nftContract.setDefaultStaking(stakingProposal.new_address);
            stakingProposal.executed = true;

            emit ExecuteStakingProposal(_stakingId);
        }
    }

    function revokeStakingApproval(uint16 _stakingId)
    external
    onlyOwner
    stakingExist(_stakingId)
    stakingNotExecuted(_stakingId)
    {
        if (!isStakingApproved[_stakingId][msg.sender]) {
            revert("SC: Not approved");
        }

        isStakingApproved[_stakingId][msg.sender] = false;
        emit RevokeStakingProposal(msg.sender, _stakingId);
    }

    function getStakingApprovals(uint16 _stakingId)
    public view
    stakingExist(_stakingId)
    returns (uint8)
    {
        uint8 _count = 0;
        for (uint8 _i = 0; _i < owners.length; ++_i) {
            if (isStakingApproved[_stakingId][owners[_i]]) {
                _count++;
            }
        }

        return _count;
    }

}
// File: contracts/helpers/errors.sol



//SPDX-License-Identifier: MIT
pragma solidity 0.8.23;

import "./utils.sol";

// Multisig
    error StakingController_WrongArgumentsCount();
    error StakingController_WrongInputAddress();
    error StakingController_WrongInputUint();

// Lootbox
    error Lootbox_WrongInputAddress();
    error Lootbox_WrongInputUint();
    error Lootbox_WrongArgumentsCount();
    error Lootbox_WrongCurrency();
    error Lootbox_NoSupply(RarityLootbox);

// NFT
    error NFT_WrongTokenId(uint256 _id);
    error NFT_WrongTypeId(uint256 _id);
    error NFT_WrongArgumentsCount();
    error NFT_WrongInputAddress();
    error NFT_WrongInputUint();
    error NFT_WrongStakingAddress();
    error NFT_NoSupply(string _distribution, uint8 _typeId);
    error NFT_WrongCurrency();
    error NFT_WrongPaymentAmount();
    error NFT_NoAccessToCall();
    error NFT_NoVestingAmount();
    error NFT_NoVestingEnabled();

// Quests
    error Quests_InvalidReward();
    error Quests_RewardNotAvailable();
    error Quests_NotEnoughUniqueNFT(uint32 _id);
    error Quests_NotEnoughTotalNFT(uint32 _id);
    error Quests_NotEnoughSpendXBTC(uint256 _spend);
    error Quests_NotEnoughLootboxesOpened(uint32 _opened);
    error Quests_NotEnoughRewardsAccumulated(uint8 _rewards);
// File: contracts/helpers/utils.sol



//SPDX-License-Identifier: MIT
pragma solidity 0.8.23;

    enum DistributionType {
        Presale,
        Quests,
        Team,
        Advisor,
        Lootbox
    }

    enum RarityNFT {
        Ordinary,
        Majestic,
        Epic,
        Legendary
    }

    enum RarityLootbox {
        Common,
        Rare,
        Epic,
        Legendary
    }


contract Utils {
    uint256 private randomNonce = 0;

    // @title Generate random number from 0 to _max-1
    function randomNum(uint256 _max)
    internal
    returns (uint256)
    {
        randomNonce++;
        return uint(keccak256(abi.encodePacked(randomNonce, msg.sender, block.prevrandao, block.number))) % _max;
    }

    // @title Check if value exists in array
    function valueExists(uint8[] memory _self, uint8 _value)
    internal pure
    returns (bool)
    {
        uint _length = _self.length;
        for (uint8 _i = 0; _i < _length; ++_i) if (_self[_i] == _value) return true;
        return false;
    }

    // @title Check if address exists in array
    function addressExists(address[] memory _self, address _value)
    internal pure
    returns (bool)
    {
        uint _length = _self.length;
        for (uint8 _i = 0; _i < _length; ++_i) if (_self[_i] == _value) return true;
        return false;
    }

    // @title Compare two strings
//	function strCompare(string memory str1, string memory str2) public pure returns (bool) {
//		if (bytes(str1).length != bytes(str2).length) {
//			return false;
//		}
//		return keccak256(abi.encodePacked(str1)) == keccak256(abi.encodePacked(str2));
//	}

    // @title Check if value exists in array and return index
//	function indexOf(uint8[] memory _self, uint8 _value) internal pure returns (uint, bool) {
//		uint _length = _self.length;
//		for (uint8 _i = 0; _i < _length; ++_i) if (_self[_i] == _value) return (_i, true);
//		return (0, false);
//	}
}
// File: contracts/interfaces/IStakingContract.sol



//SPDX-License-Identifier: MIT
pragma solidity ^0.8.23;

interface IStakingContract {
    function restakeOnSell(uint256 id, address newOwner) external;

    function stake(uint256[] memory ids) external;

    function unstake(uint256[] memory ids) external;

    function getEarnedByVMM(uint256 id) external view returns (uint256);
}