// SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;

// lib/openzeppelin-contracts/contracts/token/ERC20/IERC20.sol

// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/IERC20.sol)

/**
 * @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);
}

// lib/openzeppelin-contracts/contracts/token/ERC20/extensions/IERC20Permit.sol

// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/extensions/IERC20Permit.sol)

/**
 * @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);
}

// lib/openzeppelin-contracts/contracts/utils/Address.sol

// OpenZeppelin Contracts (last updated v5.0.0) (utils/Address.sol)

/**
 * @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();
        }
    }
}

// lib/openzeppelin-contracts/contracts/utils/Context.sol

// OpenZeppelin Contracts (last updated v5.0.1) (utils/Context.sol)

/**
 * @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;
    }

    function _contextSuffixLength() internal view virtual returns (uint256) {
        return 0;
    }
}

// lib/openzeppelin-contracts/contracts/utils/ReentrancyGuard.sol

// OpenZeppelin Contracts (last updated v5.0.0) (utils/ReentrancyGuard.sol)

/**
 * @dev Contract module that helps prevent reentrant calls to a function.
 *
 * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier
 * available, which can be applied to functions to make sure there are no nested
 * (reentrant) calls to them.
 *
 * Note that because there is a single `nonReentrant` guard, functions marked as
 * `nonReentrant` may not call one another. This can be worked around by making
 * those functions `private`, and then adding `external` `nonReentrant` entry
 * points to them.
 *
 * TIP: If you would like to learn more about reentrancy and alternative ways
 * to protect against it, check out our blog post
 * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].
 */
abstract contract ReentrancyGuard {
    // Booleans are more expensive than uint256 or any type that takes up a full
    // word because each write operation emits an extra SLOAD to first read the
    // slot's contents, replace the bits taken up by the boolean, and then write
    // back. This is the compiler's defense against contract upgrades and
    // pointer aliasing, and it cannot be disabled.

    // The values being non-zero value makes deployment a bit more expensive,
    // but in exchange the refund on every call to nonReentrant will be lower in
    // amount. Since refunds are capped to a percentage of the total
    // transaction's gas, it is best to keep them low in cases like this one, to
    // increase the likelihood of the full refund coming into effect.
    uint256 private constant NOT_ENTERED = 1;
    uint256 private constant ENTERED = 2;

    uint256 private _status;

    /**
     * @dev Unauthorized reentrant call.
     */
    error ReentrancyGuardReentrantCall();

    constructor() {
        _status = NOT_ENTERED;
    }

    /**
     * @dev Prevents a contract from calling itself, directly or indirectly.
     * Calling a `nonReentrant` function from another `nonReentrant`
     * function is not supported. It is possible to prevent this from happening
     * by making the `nonReentrant` function external, and making it call a
     * `private` function that does the actual work.
     */
    modifier nonReentrant() {
        _nonReentrantBefore();
        _;
        _nonReentrantAfter();
    }

    function _nonReentrantBefore() private {
        // On the first call to nonReentrant, _status will be NOT_ENTERED
        if (_status == ENTERED) {
            revert ReentrancyGuardReentrantCall();
        }

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

    function _nonReentrantAfter() private {
        // By storing the original value once again, a refund is triggered (see
        // https://eips.ethereum.org/EIPS/eip-2200)
        _status = NOT_ENTERED;
    }

    /**
     * @dev Returns true if the reentrancy guard is currently set to "entered", which indicates there is a
     * `nonReentrant` function in the call stack.
     */
    function _reentrancyGuardEntered() internal view returns (bool) {
        return _status == ENTERED;
    }
}

// lib/openzeppelin-contracts/contracts/utils/introspection/IERC165.sol

// OpenZeppelin Contracts (last updated v5.0.0) (utils/introspection/IERC165.sol)

/**
 * @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);
}

// lib/relay-context-contracts/contracts/vendor/ERC2771Context.sol

// OpenZeppelin Contracts (last updated v4.7.0) (metatx/ERC2771Context.sol)

/**
 * @dev Context variant with ERC2771 support.
 */
// based on https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/metatx/ERC2771Context.sol
abstract contract ERC2771Context {
    address private immutable _trustedForwarder;

    constructor(address trustedForwarder) {
        _trustedForwarder = trustedForwarder;
    }

    function isTrustedForwarder(address forwarder)
        public
        view
        virtual
        returns (bool)
    {
        return forwarder == _trustedForwarder;
    }

    function _msgSender() internal view virtual returns (address sender) {
        if (isTrustedForwarder(msg.sender)) {
            // The assembly code is more direct than the Solidity version using `abi.decode`.
            /// @solidity memory-safe-assembly
            assembly {
                sender := shr(96, calldataload(sub(calldatasize(), 20)))
            }
        } else {
            return msg.sender;
        }
    }

    function _msgData() internal view virtual returns (bytes calldata) {
        if (isTrustedForwarder(msg.sender)) {
            return msg.data[:msg.data.length - 20];
        } else {
            return msg.data;
        }
    }
}

// lib/openzeppelin-contracts/contracts/access/Ownable.sol

// OpenZeppelin Contracts (last updated v5.0.0) (access/Ownable.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);
    }
}

// lib/openzeppelin-contracts/contracts/token/ERC721/IERC721.sol

// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC721/IERC721.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);
}

// lib/openzeppelin-contracts/contracts/token/ERC20/utils/SafeERC20.sol

// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/utils/SafeERC20.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;
    }
}

// lib/ingredients/DirectPayment_v1.sol

/**
 * Abstract payment protocol contract
 *
 * Receives tokens from senders, takes a protocol fee (set percentage of the amount), and forwards
 * the rest of the payment to the recipients.
 *
 * The contract takes original sender and recipient address as parameters, allowing msg.sender
 * to be another contract in the payment chain (passing original sender address through the chained
 * contracts (if any), and reaching a final recipent via this contract.
 */
abstract contract DirectPayment_v1 is ReentrancyGuard {
    
    using SafeERC20 for IERC20;
    
    error FailedToPayGasToken(); // failed to pay gas token
    error InvalidPaymentAmount(); // ERC20 allowance or balance < amount to be transferred
    error MismatchedPaymentGasTokenValue(); // gas token value does not match msg.value

    uint256 public feePercentage; // fee percentage on tokens transacted through protocol, 1 = 0.01%

    event newFeePercentage(uint256 indexed _newPercentage);
    event nftPaid(address indexed _from, address indexed _to, address indexed _nft, uint256 _nftId);
    event tokensPaid(address indexed _from, address indexed _to, address indexed _token,
        uint256 _amount);
        

    /*
    //////////////////////////
    /// External functions ///
    //////////////////////////
    */

    /* External function that transfers NFT to recipient and emits an event.
     */
    function payNFT(
        address _sender,
        address _nftAddress,
        uint256 _nftId,
        address _recipient)
        external
        payable
        nonReentrant
        virtual
    {
        IERC721(_nftAddress).transferFrom(msg.sender, _recipient, _nftId);

        emit nftPaid(_sender, _recipient, _nftAddress, _nftId);
    }

    /* External virtual function that receives ERC20s and gas tokens, takes a fee, forwards the rest
     * to the intended recipient, and emits an event.
     */
    function payTokens(
        address _sender,
        address _token,
        uint256 _amount,
        uint256 _deadline,
        uint8 _v,
        bytes32 _r,
        bytes32 _s,
        address _recipient)
        external
        nonReentrant
        payable
        virtual
    {
        if (_amount == 0) {
            revert InvalidPaymentAmount();
        }
        
        uint256 fee = (_amount * feePercentage) / 10000; // feePercentage of 1 = 0.01% fee
        uint256 toRecipient = _amount - fee;

        if (_token == address(0)) {
            if (_amount != msg.value) {
                revert MismatchedPaymentGasTokenValue();
            }
            (bool success, ) = _recipient.call{value: toRecipient}("");
            if (!success) {
                revert FailedToPayGasToken();
            }
        } else {
            if (_deadline != 0) {
                // Handle EIP-2612-compliant tokens
                IERC20Permit(_token).permit(msg.sender, address(this), _amount,
                    _deadline, _v, _r, _s);
            }
            IERC20 token = IERC20(_token);
            uint256 allowance = token.allowance(msg.sender, address(this));
            uint256 balance = token.balanceOf(msg.sender);
            if (allowance < _amount || balance < _amount ) {
                revert InvalidPaymentAmount();
            }
            token.safeTransferFrom(msg.sender, address(this), _amount);
            if (toRecipient > 0) {
                token.safeTransfer(_recipient, toRecipient);
            }
        }

        emit tokensPaid(_sender, _recipient, _token, _amount);
    }

    /* External virtual function to change fee percentage
     */
    function setFeePercentage(uint256 _newFeePercentage)
        external
        virtual
    {
        feePercentage = _newFeePercentage;

        emit newFeePercentage(_newFeePercentage);
    }
}

// lib/ingredients/ProtocolContract_v1.sol

/**
 * Abstract protocol contract is Ownable and ReentrancyGuard and has virtual functions that allow
 * the Owner to transfer ERC20 and ERC721 tokens from this contract to any recipient.
 *
 * The aim is to collect tokens mistakenly sent to a child contract. The contracts that inherit from
 * this contract must consider what tokens need to be safeguarded from being withdrawable by the
 * Owner and thus override the virtual transfer functions defined in this contract.
 */
abstract contract ProtocolContract_v1 is Ownable, ReentrancyGuard {
    using SafeERC20 for IERC20;

    error AmountToTransferExceedsContractBalance(
        uint256 _amount,
        uint256 _balance
    );
    error CannotSendToSelf();
    error OwnerApproveAndCallArraysMismatch(
        uint256 _tokensLength,
        uint256 _spendersLength,
        uint256 _amountsLength
    );
    error OwnerFailedToApproveAndCall(
        address _token,
        address _spender,
        uint256 _amount
    );
    error OwnerFailedToSendGasToken();
    error OwnerTransferArraysMismatch(
        uint256 _tokensLength,
        uint256 _amountsLength,
        uint256 _recipientsLength
    );

    event OwnerTransferredNft(
        address indexed _token,
        address indexed _to,
        uint256 indexed _nftId
    );
    event OwnerTransferredTokens(
        address indexed _token,
        address indexed _to,
        uint256 indexed _amount
    );

    constructor(address _initialOwner) Ownable(_initialOwner) {}

    /*
    //////////////////////////
    /// External functions ///
    //////////////////////////
    */

    fallback() external payable virtual {}

    receive() external payable virtual {}

    /* External virtual function called by Owner to transfer NFTs from this contract
     */
    function transferNfts(
        address[] calldata _nfts,
        address[] calldata _recipients,
        uint256[] calldata _nftIds
    ) external virtual nonReentrant onlyOwner {
        if (
            _nfts.length != _nftIds.length || _nfts.length != _recipients.length
        ) {
            revert OwnerTransferArraysMismatch(
                _nfts.length,
                _nftIds.length,
                _recipients.length
            );
        }
        for (uint256 i = 0; i < _nfts.length; ) {
            IERC721(_nfts[i]).safeTransferFrom(
                address(this),
                _recipients[i],
                _nftIds[i]
            );

            emit OwnerTransferredNft(_nfts[i], _recipients[i], _nftIds[i]);

            unchecked {
                ++i;
            }
        }
    }

    /* External virtual function called by Owner to transfer tokens from this contract
     */
    function transferTokens(
        address[] calldata _tokens,
        address[] calldata _recipients,
        uint256[] calldata _amounts
    ) external virtual nonReentrant onlyOwner {
        if (
            _tokens.length != _amounts.length ||
            _tokens.length != _recipients.length
        ) {
            revert OwnerTransferArraysMismatch(
                _tokens.length,
                _amounts.length,
                _recipients.length
            );
        }
        for (uint256 i = 0; i < _tokens.length; ) {
            if (_recipients[i] == address(this)) {
                revert CannotSendToSelf();
            }
            uint256 contractBalance = _tokens[i] == address(0)
                ? address(this).balance
                : IERC20(_tokens[i]).balanceOf(address(this));
            if (_amounts[i] > contractBalance) {
                revert AmountToTransferExceedsContractBalance(
                    _amounts[i],
                    contractBalance
                );
            }
            if (_tokens[i] == address(0)) {
                // native token
                (bool sent, ) = payable(_recipients[i]).call{
                    value: _amounts[i]
                }("");
                if (!sent) {
                    revert OwnerFailedToSendGasToken();
                }
            } else {
                if (_recipients[i] != address(0)) {
                    IERC20(_tokens[i]).safeTransfer(
                        _recipients[i],
                        _amounts[i]
                    );
                } else {
                    IERC20(_tokens[i]).transfer(_recipients[i], _amounts[i]);
                }
            }

            emit OwnerTransferredTokens(
                _tokens[i],
                _recipients[i],
                _amounts[i]
            );

            unchecked {
                ++i;
            }
        }
    }

    /* External function that allows Owner to approve and call a contract to perform actions with
     * this contract's tokens
     */
    function approveTokenAndCall(
        address _token,
        address _spender,
        uint256 _amount,
        bytes calldata _data
    ) external nonReentrant onlyOwner {
        bool success;
        if (_token != address(0)) {
            IERC20(_token).approve(_spender, _amount);
            (success, ) = _spender.call(_data);
        } else {
            (success, ) = _spender.call{value: _amount}(_data);
        }
        if (!success) {
            revert OwnerFailedToApproveAndCall(_token, _spender, _amount);
        }
    }

    /* External function that allows Owner to approve many tokens and call contracts to perform
     * actions with those tokens held by this contract
     */
    function approveManyTokensAndCall(
        address[] calldata _tokens,
        address[] calldata _spenders,
        uint256[] calldata _amounts,
        bytes[] calldata _data
    ) external nonReentrant onlyOwner {
        bool success;
        if (
            _tokens.length != _spenders.length ||
            _spenders.length != _amounts.length ||
            _amounts.length != _data.length
        ) {
            revert OwnerApproveAndCallArraysMismatch(
                _tokens.length,
                _spenders.length,
                _amounts.length
            );
        }
        for (uint256 i = 0; i < _tokens.length; ) {
            if (_tokens[i] != address(0)) {
                if (_amounts[i] > 0) {
                    IERC20(_tokens[i]).approve(_spenders[i], _amounts[i]);
                }
                (success, ) = _spenders[i].call(_data[i]);
            } else {
                (success, ) = _spenders[i].call{value: _amounts[i]}(_data[i]);
            }
            if (!success) {
                revert OwnerFailedToApproveAndCall(
                    _tokens[i],
                    _spenders[i],
                    _amounts[i]
                );
            }
            unchecked {
                ++i;
            }
        }
    }
}

// src/IlmDirectPaymentGelato_v1.sol

/**
 * Payment protocol contract for the Illuminate (ILM) protocol.
 *
 * Receives payments from users and takes a fee before forwarding the rest to the recipient. The
 * fees collected is withdrawable by the Owner of this contract, as it is a ProtocolContract. The
 * Owner is to be the Illuminate DAO or multisig wallet.
 *
 * This contract is compatible with Gelato Relay's sponsoredCallERC2771 function.
 */
contract IlmDirectPaymentGelato_v1 is DirectPayment_v1, ProtocolContract_v1, ERC2771Context {

    using SafeERC20 for IERC20;

    error InvalidFeePercentage(); // fee percentage must be <= 30% max
    error InsufficientNFTFee(); // insufficient fee for NFT payment
    error PaymentArraysLengthMismatch(); // arrays passed to payment function have different lengths

    mapping(address => uint256) public customFee; // creator => custom fee, 0 = no custom fee

    uint256 public nftFee; // fee in gas to send nft

    constructor() ERC2771Context(0xd8253782c45a12053594b9deB72d8e8aB2Fca54c)
        ProtocolContract_v1(0xF9dE78c2531A7042bB6D425F17f70D8AF528b911) {
            nftFee = 1000000000000000; // 0.001 ETH
            feePercentage = 1000; // 10%
    }

    /*
    //////////////////////////
    /// External functions ///
    //////////////////////////
    */

    /* External function that transfers NFTs to recipients and emits an event per NFT and recipient.
     */
    function payManyNFTs(
        address _sender,
        address[] calldata _nftAddresses,
        uint256[] calldata _nftIds,
        address[] calldata _recipients)
        external
        payable
        nonReentrant
    {
        if (
            _nftAddresses.length != _nftIds.length ||
            _nftIds.length != _recipients.length
        ) {
            revert PaymentArraysLengthMismatch();
        }
        
        if (
            msg.value < nftFee * _nftAddresses.length
        ) {
            revert InsufficientNFTFee();
        }

        for (uint256 i = 0; i < _nftAddresses.length; ) {
            IERC721(_nftAddresses[i]).transferFrom(_msgSender(), _recipients[i], _nftIds[i]);
        
            emit nftPaid(_sender, _recipients[i], _nftAddresses[i], _nftIds[i]);
            
            unchecked {
                ++i;
            }
        }
    }

    /* External function that receives multiple ERC20s and/or gas token, takes fees, and forwards
     * the rest to recipients.
     */
    function payManyTokens(
        address _sender,
        address[] calldata _tokens,
        uint256[] calldata _amounts,
        uint256[] calldata _deadlines,
        uint8[] calldata _vs,
        bytes32[] calldata _rs,
        bytes32[] calldata _ss,
        address[] calldata _recipients)
        external
        nonReentrant
        payable
    {
        if (
            _tokens.length != _amounts.length ||
            _amounts.length != _deadlines.length ||
            _deadlines.length != _vs.length ||
            _vs.length != _rs.length ||
            _rs.length != _ss.length ||
            _ss.length != _recipients.length
        ) {
            revert PaymentArraysLengthMismatch();
        }

        uint256 gasTokenTotal = 0;

        for (uint256 i = 0; i < _tokens.length; ) {
            if (_amounts[i] == 0) {
                revert InvalidPaymentAmount();
            }
            uint256 finalFeePercentage = feePercentage;
            if (customFee[_recipients[i]] != 0) {
                if (customFee[_recipients[i]] < finalFeePercentage) {
                    finalFeePercentage = customFee[_recipients[i]];
                }
            }
            if (customFee[_tokens[i]] != 0) {
                if (customFee[_tokens[i]] < finalFeePercentage) {
                    finalFeePercentage = customFee[_tokens[i]];
                }
            }
            uint256 fee = _amounts[i] * finalFeePercentage / 10000;
            uint256 toRecipient = _amounts[i] - fee;
            if (_tokens[i] == address(0)) {
                gasTokenTotal += _amounts[i];
                if (gasTokenTotal > msg.value) {
                    revert MismatchedPaymentGasTokenValue();
                }
                (bool success, ) = _recipients[i].call{value: toRecipient}("");
                if (!success) {
                    revert FailedToPayGasToken();
                }
            } else {
                if (_deadlines[i] != 0) {
                    // Handle EIP-2612-compliant tokens
                    IERC20Permit(_tokens[i]).permit(_msgSender(), address(this), _amounts[i],
                        _deadlines[i], _vs[i], _rs[i], _ss[i]);
                }
                IERC20 token = IERC20(_tokens[i]);
                uint256 allowance = token.allowance(_msgSender(), address(this));
                uint256 balance = token.balanceOf(_msgSender());
                if (allowance < _amounts[i] || balance < _amounts[i]) {
                    revert InvalidPaymentAmount();
                }
                token.safeTransferFrom(_msgSender(), address(this), _amounts[i]);
                if (toRecipient > 0) {
                    token.safeTransfer(_recipients[i], toRecipient);
                }
            }

            emit tokensPaid(_sender, _recipients[i], _tokens[i], _amounts[i]);

            unchecked {
                ++i;
            }
        }
    }

    /* External override function that transfers NFT to recipient for a fee and emits an event.
     */
    function payNFT(
        address _sender,
        address _nftAddress,
        uint256 _nftId,
        address _recipient)
        external
        payable
        nonReentrant
        override
    {
        if (
            msg.value < nftFee
        ) {
            revert InsufficientNFTFee();
        }

        IERC721(_nftAddress).transferFrom(_msgSender(), _recipient, _nftId);

        emit nftPaid(_sender, _recipient, _nftAddress, _nftId);
    }

    /* External override function that receives ERC20s and gas tokens, takes a fee, forwards the rest
     * to the intended recipient, and emits an event.
     */
    function payTokens(
        address _sender,
        address _token,
        uint256 _amount,
        uint256 _deadline,
        uint8 _v,
        bytes32 _r,
        bytes32 _s,
        address _recipient)
        external
        nonReentrant
        payable
        override
    {
        if (_amount == 0) {
            revert InvalidPaymentAmount();
        }
        uint256 finalFeePercentage = feePercentage;
        if (customFee[_recipient] != 0) {
            if (customFee[_recipient] < finalFeePercentage) {
                finalFeePercentage = customFee[_recipient];
            }
        }
        if (customFee[_token] != 0) {
            if (customFee[_token] < finalFeePercentage) {
                finalFeePercentage = customFee[_token];
            }
        } 
        uint256 fee = (_amount * finalFeePercentage) / 10000; // feePercentage of 1 = 0.01% fee
        uint256 toRecipient = _amount - fee;

        if (_token == address(0)) {
            if (_amount != msg.value) {
                revert MismatchedPaymentGasTokenValue();
            }
            (bool success, ) = _recipient.call{value: toRecipient}("");
            if (!success) {
                revert FailedToPayGasToken();
            }
        } else {
            if (_deadline != 0) {
                // Handle EIP-2612-compliant tokens
                IERC20Permit(_token).permit(_msgSender(), address(this), _amount,
                    _deadline, _v, _r, _s);
            }
            IERC20 token = IERC20(_token);
            uint256 allowance = token.allowance(_msgSender(), address(this));
            uint256 balance = token.balanceOf(_msgSender());
            if (allowance < _amount || balance < _amount ) {
                revert InvalidPaymentAmount();
            }
            token.safeTransferFrom(_msgSender(), address(this), _amount);
            if (toRecipient > 0) {
                token.safeTransfer(_recipient, toRecipient);
            }
        }

        emit tokensPaid(_sender, _recipient, _token, _amount);
    }

    /* External function that allows Owner to set a custom fee for a creator or token
     */
    function setCustomFee(address _address, uint256 _fee)
        external
        nonReentrant
        onlyOwner
    {
        customFee[_address] = _fee;
    }

    /* External override function called by Owner to change fee percentage
     */
    function setFeePercentage(uint256 _newFeePercentage)
        external
        override
        nonReentrant
        onlyOwner
        validFeePercentage(_newFeePercentage)
    {
        feePercentage = _newFeePercentage;
    }

    /* External function that allows Owner to set the fee in gas to send an NFT
     */
    function setNftFee(uint256 _newNftFee)
        external
        nonReentrant
        onlyOwner
    {
        nftFee = _newNftFee;
    }

    //////////////////////////
    /// Internal functions ///
    //////////////////////////

    /* Internal override function that defines _msgSender() per Gelato's ERC2771Context
     */
     function _msgSender()
        internal
        view
        override(ERC2771Context, Context)
        returns (address sender)
    {
        if (isTrustedForwarder(msg.sender)) {
            // The assembly code is more direct than the Solidity version using `abi.decode`.
            /// @solidity memory-safe-assembly
            assembly {
                sender := shr(96, calldataload(sub(calldatasize(), 20)))
            }
        } else {
            return msg.sender;
        }
    }

    /* Internal override function that defines _msgData() per Gelato's ERC2771Context
     */
    function _msgData()
        internal
        view
        override(ERC2771Context, Context)
        returns (bytes calldata)
    {
        if (isTrustedForwarder(msg.sender)) {
            return msg.data[:msg.data.length - 20];
        } else {
            return msg.data;
        }
    }

    /*
    /////////////////
    /// Modifiers ///
    /////////////////
    */

    modifier validFeePercentage(uint256 _fee) {
        if(_fee > 3000) {
            revert InvalidFeePercentage();
        }
        _;
    }
}

{
  "compilationTarget": {
    "IlmDirectPaymentGelato_v1.flattened.sol": "IlmDirectPaymentGelato_v1"
  },
  "evmVersion": "cancun",
  "libraries": {},
  "metadata": {
    "bytecodeHash": "ipfs"
  },
  "optimizer": {
    "enabled": true,
    "runs": 1000000
  },
  "remappings": [],
  "viaIR": true
}