// File: contracts/Forwarder.sol



// SPDX-License-Identifier: Apache-2.0
pragma solidity 0.8.17;
import '@openzeppelin/contracts/token/ERC1155/IERC1155.sol';
import '@openzeppelin/contracts/token/ERC721/IERC721.sol';
import '@openzeppelin/contracts/token/ERC721/IERC721Receiver.sol';
import '@openzeppelin/contracts/token/ERC1155/utils/ERC1155Receiver.sol';
import './ERC20Interface.sol';
import './TransferHelper.sol';
import './IForwarder.sol';

/**
 * Contract that will forward any incoming Ether to the creator of the contract
 *
 */
contract Forwarder is IERC721Receiver, ERC1155Receiver, IForwarder {
    // Address to which any funds sent to this contract will be forwarded
    address public parentAddress;
    bool public autoFlush721 = true;
    bool public autoFlush1155 = true;

    constructor(address _parentAddress) {
        parentAddress = _parentAddress;
    }

    event ForwarderDeposited(address from, uint256 value, bytes data);

    /**
     * Initialize the contract, and sets the destination address to that of the creator
     */
    function init(
        address _parentAddress,
        bool _autoFlush721,
        bool _autoFlush1155
    ) external onlyUninitialized {
        parentAddress = _parentAddress;
        uint256 value = address(this).balance;

        // set whether we want to automatically flush erc721/erc1155 tokens or not
        autoFlush721 = _autoFlush721;
        autoFlush1155 = _autoFlush1155;

        if (value == 0) {
            return;
        }

        (bool success, ) = parentAddress.call{value: value}('');
        require(success, 'Flush failed');

        // NOTE: since we are forwarding on initialization,
        // we don't have the context of the original sender.
        // We still emit an event about the forwarding but set
        // the sender to the forwarder itself
        emit ForwarderDeposited(address(this), value, msg.data);
    }

    /**
     * Modifier that will execute internal code block only if the sender is the parent address
     */
    modifier onlyParent() {
        require(msg.sender == parentAddress, 'Only Parent');
        _;
    }

    /**
     * Modifier that will execute internal code block only if the contract has not been initialized yet
     */
    modifier onlyUninitialized() {
        require(parentAddress == address(0x0), 'Already initialized');
        _;
    }

    /**
     * Default function; Gets called when data is sent but does not match any other function
     */
    fallback() external payable {
        flush();
    }

    /**
     * Default function; Gets called when Ether is deposited with no data, and forwards it to the parent address
     */
    receive() external payable {
        flush();
    }

    /**
     * @inheritdoc IForwarder
     */
    function setAutoFlush721(bool autoFlush)
        external
        virtual
        override
        onlyParent
    {
        autoFlush721 = autoFlush;
    }

    /**
     * @inheritdoc IForwarder
     */
    function setAutoFlush1155(bool autoFlush)
        external
        virtual
        override
        onlyParent
    {
        autoFlush1155 = autoFlush;
    }

    /**
     * ERC721 standard callback function for when a ERC721 is transfered. The forwarder will send the nft
     * to the base wallet once the nft contract invokes this method after transfering the nft.
     *
     * @param _operator The address which called `safeTransferFrom` function
     * @param _from The address of the sender
     * @param _tokenId The token id of the nft
     * @param data Additional data with no specified format, sent in call to `_to`
     */
    function onERC721Received(
        address _operator,
        address _from,
        uint256 _tokenId,
        bytes memory data
    ) external virtual override returns (bytes4) {
        if (autoFlush721) {
            IERC721 instance = IERC721(msg.sender);
            require(
                instance.supportsInterface(type(IERC721).interfaceId),
                'The caller does not support the ERC721 interface'
            );
            // this won't work for ERC721 re-entrancy
            instance.safeTransferFrom(
                address(this),
                parentAddress,
                _tokenId,
                data
            );
        }

        return this.onERC721Received.selector;
    }

    function callFromParent(
        address target,
        uint256 value,
        bytes calldata data
    ) external onlyParent returns (bytes memory) {
        (bool success, bytes memory returnedData) = target.call{value: value}(
            data
        );
        require(success, 'Parent call execution failed');

        return returnedData;
    }

    /**
     * @inheritdoc IERC1155Receiver
     */
    function onERC1155Received(
        address _operator,
        address _from,
        uint256 id,
        uint256 value,
        bytes calldata data
    ) external virtual override returns (bytes4) {
        IERC1155 instance = IERC1155(msg.sender);
        require(
            instance.supportsInterface(type(IERC1155).interfaceId),
            'The caller does not support the IERC1155 interface'
        );

        if (autoFlush1155) {
            instance.safeTransferFrom(
                address(this),
                parentAddress,
                id,
                value,
                data
            );
        }

        return this.onERC1155Received.selector;
    }

    /**
     * @inheritdoc IERC1155Receiver
     */
    function onERC1155BatchReceived(
        address _operator,
        address _from,
        uint256[] calldata ids,
        uint256[] calldata values,
        bytes calldata data
    ) external virtual override returns (bytes4) {
        IERC1155 instance = IERC1155(msg.sender);
        require(
            instance.supportsInterface(type(IERC1155).interfaceId),
            'The caller does not support the IERC1155 interface'
        );

        if (autoFlush1155) {
            instance.safeBatchTransferFrom(
                address(this),
                parentAddress,
                ids,
                values,
                data
            );
        }

        return this.onERC1155BatchReceived.selector;
    }

    /**
     * @inheritdoc IForwarder
     */
    function flushTokens(address tokenContractAddress)
        external
        virtual
        override
        onlyParent
    {
        ERC20Interface instance = ERC20Interface(tokenContractAddress);
        address forwarderAddress = address(this);
        uint256 forwarderBalance = instance.balanceOf(forwarderAddress);
        if (forwarderBalance == 0) {
            return;
        }

        TransferHelper.safeTransfer(
            tokenContractAddress,
            parentAddress,
            forwarderBalance
        );
    }

    /**
     * @inheritdoc IForwarder
     */
    function flushERC721Token(address tokenContractAddress, uint256 tokenId)
        external
        virtual
        override
        onlyParent
    {
        IERC721 instance = IERC721(tokenContractAddress);
        require(
            instance.supportsInterface(type(IERC721).interfaceId),
            'The tokenContractAddress does not support the ERC721 interface'
        );

        address ownerAddress = instance.ownerOf(tokenId);
        instance.transferFrom(ownerAddress, parentAddress, tokenId);
    }

    /**
     * @inheritdoc IForwarder
     */
    function flushERC1155Tokens(address tokenContractAddress, uint256 tokenId)
        external
        virtual
        override
        onlyParent
    {
        IERC1155 instance = IERC1155(tokenContractAddress);
        require(
            instance.supportsInterface(type(IERC1155).interfaceId),
            'The caller does not support the IERC1155 interface'
        );

        address forwarderAddress = address(this);
        uint256 forwarderBalance = instance.balanceOf(
            forwarderAddress,
            tokenId
        );

        instance.safeTransferFrom(
            forwarderAddress,
            parentAddress,
            tokenId,
            forwarderBalance,
            ''
        );
    }

    /**
     * @inheritdoc IForwarder
     */
    function batchFlushERC1155Tokens(
        address tokenContractAddress,
        uint256[] calldata tokenIds
    ) external virtual override onlyParent {
        IERC1155 instance = IERC1155(tokenContractAddress);
        require(
            instance.supportsInterface(type(IERC1155).interfaceId),
            'The caller does not support the IERC1155 interface'
        );

        address forwarderAddress = address(this);
        uint256[] memory amounts = new uint256[](tokenIds.length);
        for (uint256 i = 0; i < tokenIds.length; i++) {
            amounts[i] = instance.balanceOf(forwarderAddress, tokenIds[i]);
        }

        instance.safeBatchTransferFrom(
            forwarderAddress,
            parentAddress,
            tokenIds,
            amounts,
            ''
        );
    }

    /**
     * Flush the entire balance of the contract to the parent address.
     */
    function flush() public {
        uint256 value = address(this).balance;

        if (value == 0) {
            return;
        }

        (bool success, ) = parentAddress.call{value: value}('');
        require(success, 'Flush failed');
        emit ForwarderDeposited(msg.sender, value, msg.data);
    }

    /**
     * @inheritdoc IERC165
     */
    function supportsInterface(bytes4 interfaceId)
        public
        view
        virtual
        override(ERC1155Receiver, IERC165)
        returns (bool)
    {
        return
            interfaceId == type(IForwarder).interfaceId ||
            super.supportsInterface(interfaceId);
    }
}

// File: contracts/TransferHelper.sol



// SPDX-License-Identifier: GPL-3.0-or-later
// source: https://github.com/Uniswap/solidity-lib/blob/master/contracts/libraries/TransferHelper.sol
pragma solidity 0.8.17;

import '@openzeppelin/contracts/utils/Address.sol';

// helper methods for interacting with ERC20 tokens and sending ETH that do not consistently return true/false
library TransferHelper {
    function safeTransfer(
        address token,
        address to,
        uint256 value
    ) internal {
        // bytes4(keccak256(bytes('transfer(address,uint256)')));
        (bool success, bytes memory data) = token.call(
            abi.encodeWithSelector(0xa9059cbb, to, value)
        );
        require(
            success && (data.length == 0 || abi.decode(data, (bool))),
            'TransferHelper::safeTransfer: transfer failed'
        );
    }

    function safeTransferFrom(
        address token,
        address from,
        address to,
        uint256 value
    ) internal {
        // bytes4(keccak256(bytes('transferFrom(address,address,uint256)')));
        (bool success, bytes memory returndata) = token.call(
            abi.encodeWithSelector(0x23b872dd, from, to, value)
        );
        Address.verifyCallResult(
            success,
            returndata,
            'TransferHelper::transferFrom: transferFrom failed'
        );
    }
}

// File: contracts/ERC20Interface.sol



// SPDX-License-Identifier: UNLICENSED
pragma solidity 0.8.17;

/**
 * Contract that exposes the needed erc20 token functions
 */

abstract contract ERC20Interface {
    // Send _value amount of tokens to address _to
    function transfer(address _to, uint256 _value)
        public
        virtual
        returns (bool success);

    // Get the account balance of another account with address _owner
    function balanceOf(address _owner)
        public
        view
        virtual
        returns (uint256 balance);
}

// File: contracts/IForwarder.sol



// SPDX-License-Identifier: Apache-2.0
pragma solidity 0.8.17;
import '@openzeppelin/contracts/utils/introspection/IERC165.sol';

interface IForwarder is IERC165 {
    /**
     * Sets the autoflush721 parameter.
     *
     * @param autoFlush whether to autoflush erc721 tokens
     */
    function setAutoFlush721(bool autoFlush) external;

    /**
     * Sets the autoflush1155 parameter.
     *
     * @param autoFlush whether to autoflush erc1155 tokens
     */
    function setAutoFlush1155(bool autoFlush) external;

    /**
     * Execute a token transfer of the full balance from the forwarder token to the parent address
     *
     * @param tokenContractAddress the address of the erc20 token contract
     */
    function flushTokens(address tokenContractAddress) external;

    /**
     * Execute a nft transfer from the forwarder to the parent address
     *
     * @param tokenContractAddress the address of the ERC721 NFT contract
     * @param tokenId The token id of the nft
     */
    function flushERC721Token(address tokenContractAddress, uint256 tokenId)
        external;

    /**
     * Execute a nft transfer from the forwarder to the parent address.
     *
     * @param tokenContractAddress the address of the ERC1155 NFT contract
     * @param tokenId The token id of the nft
     */
    function flushERC1155Tokens(address tokenContractAddress, uint256 tokenId)
        external;

    /**
     * Execute a batch nft transfer from the forwarder to the parent address.
     *
     * @param tokenContractAddress the address of the ERC1155 NFT contract
     * @param tokenIds The token ids of the nfts
     */
    function batchFlushERC1155Tokens(
        address tokenContractAddress,
        uint256[] calldata tokenIds
    ) external;
}

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



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (token/ERC721/IERC721.sol)

pragma solidity ^0.8.0;

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

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

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

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

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

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

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

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

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

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

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

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

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

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



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

pragma solidity ^0.8.0;

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

// File: @openzeppelin/contracts/token/ERC1155/IERC1155.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (token/ERC1155/IERC1155.sol)

pragma solidity ^0.8.0;

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

/**
 * @dev Required interface of an ERC1155 compliant contract, as defined in the
 * https://eips.ethereum.org/EIPS/eip-1155[EIP].
 *
 * _Available since v3.1._
 */
interface IERC1155 is IERC165 {
    /**
     * @dev Emitted when `value` tokens of token type `id` are transferred from `from` to `to` by `operator`.
     */
    event TransferSingle(address indexed operator, address indexed from, address indexed to, uint256 id, uint256 value);

    /**
     * @dev Equivalent to multiple {TransferSingle} events, where `operator`, `from` and `to` are the same for all
     * transfers.
     */
    event TransferBatch(
        address indexed operator,
        address indexed from,
        address indexed to,
        uint256[] ids,
        uint256[] values
    );

    /**
     * @dev Emitted when `account` grants or revokes permission to `operator` to transfer their tokens, according to
     * `approved`.
     */
    event ApprovalForAll(address indexed account, address indexed operator, bool approved);

    /**
     * @dev Emitted when the URI for token type `id` changes to `value`, if it is a non-programmatic URI.
     *
     * If an {URI} event was emitted for `id`, the standard
     * https://eips.ethereum.org/EIPS/eip-1155#metadata-extensions[guarantees] that `value` will equal the value
     * returned by {IERC1155MetadataURI-uri}.
     */
    event URI(string value, uint256 indexed id);

    /**
     * @dev Returns the amount of tokens of token type `id` owned by `account`.
     *
     * Requirements:
     *
     * - `account` cannot be the zero address.
     */
    function balanceOf(address account, uint256 id) external view returns (uint256);

    /**
     * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {balanceOf}.
     *
     * Requirements:
     *
     * - `accounts` and `ids` must have the same length.
     */
    function balanceOfBatch(address[] calldata accounts, uint256[] calldata ids)
        external
        view
        returns (uint256[] memory);

    /**
     * @dev Grants or revokes permission to `operator` to transfer the caller's tokens, according to `approved`,
     *
     * Emits an {ApprovalForAll} event.
     *
     * Requirements:
     *
     * - `operator` cannot be the caller.
     */
    function setApprovalForAll(address operator, bool approved) external;

    /**
     * @dev Returns true if `operator` is approved to transfer ``account``'s tokens.
     *
     * See {setApprovalForAll}.
     */
    function isApprovedForAll(address account, address operator) external view returns (bool);

    /**
     * @dev Transfers `amount` tokens of token type `id` from `from` to `to`.
     *
     * Emits a {TransferSingle} event.
     *
     * Requirements:
     *
     * - `to` cannot be the zero address.
     * - If the caller is not `from`, it must have been approved to spend ``from``'s tokens via {setApprovalForAll}.
     * - `from` must have a balance of tokens of type `id` of at least `amount`.
     * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155Received} and return the
     * acceptance magic value.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 id,
        uint256 amount,
        bytes calldata data
    ) external;

    /**
     * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {safeTransferFrom}.
     *
     * Emits a {TransferBatch} event.
     *
     * Requirements:
     *
     * - `ids` and `amounts` must have the same length.
     * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155BatchReceived} and return the
     * acceptance magic value.
     */
    function safeBatchTransferFrom(
        address from,
        address to,
        uint256[] calldata ids,
        uint256[] calldata amounts,
        bytes calldata data
    ) external;
}

// File: @openzeppelin/contracts/token/ERC1155/utils/ERC1155Receiver.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC1155/utils/ERC1155Receiver.sol)

pragma solidity ^0.8.0;

import "../IERC1155Receiver.sol";
import "../../../utils/introspection/ERC165.sol";

/**
 * @dev _Available since v3.1._
 */
abstract contract ERC1155Receiver is ERC165, IERC1155Receiver {
    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) {
        return interfaceId == type(IERC1155Receiver).interfaceId || super.supportsInterface(interfaceId);
    }
}

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



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (utils/Address.sol)

pragma solidity ^0.8.1;

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

        return account.code.length > 0;
    }

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

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

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

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

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

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

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

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

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

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

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

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

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

    /**
     * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the
     * revert reason using the provided one.
     *
     * _Available since v4.3._
     */
    function verifyCallResult(
        bool success,
        bytes memory returndata,
        string memory errorMessage
    ) internal pure returns (bytes memory) {
        if (success) {
            return returndata;
        } else {
            // Look for revert reason and bubble it up if present
            if (returndata.length > 0) {
                // The easiest way to bubble the revert reason is using memory via assembly
                /// @solidity memory-safe-assembly
                assembly {
                    let returndata_size := mload(returndata)
                    revert(add(32, returndata), returndata_size)
                }
            } else {
                revert(errorMessage);
            }
        }
    }
}

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



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

pragma solidity ^0.8.0;

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

// File: @openzeppelin/contracts/token/ERC1155/IERC1155Receiver.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (token/ERC1155/IERC1155Receiver.sol)

pragma solidity ^0.8.0;

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

/**
 * @dev _Available since v3.1._
 */
interface IERC1155Receiver is IERC165 {
    /**
     * @dev Handles the receipt of a single ERC1155 token type. This function is
     * called at the end of a `safeTransferFrom` after the balance has been updated.
     *
     * NOTE: To accept the transfer, this must return
     * `bytes4(keccak256("onERC1155Received(address,address,uint256,uint256,bytes)"))`
     * (i.e. 0xf23a6e61, or its own function selector).
     *
     * @param operator The address which initiated the transfer (i.e. msg.sender)
     * @param from The address which previously owned the token
     * @param id The ID of the token being transferred
     * @param value The amount of tokens being transferred
     * @param data Additional data with no specified format
     * @return `bytes4(keccak256("onERC1155Received(address,address,uint256,uint256,bytes)"))` if transfer is allowed
     */
    function onERC1155Received(
        address operator,
        address from,
        uint256 id,
        uint256 value,
        bytes calldata data
    ) external returns (bytes4);

    /**
     * @dev Handles the receipt of a multiple ERC1155 token types. This function
     * is called at the end of a `safeBatchTransferFrom` after the balances have
     * been updated.
     *
     * NOTE: To accept the transfer(s), this must return
     * `bytes4(keccak256("onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)"))`
     * (i.e. 0xbc197c81, or its own function selector).
     *
     * @param operator The address which initiated the batch transfer (i.e. msg.sender)
     * @param from The address which previously owned the token
     * @param ids An array containing ids of each token being transferred (order and length must match values array)
     * @param values An array containing amounts of each token being transferred (order and length must match ids array)
     * @param data Additional data with no specified format
     * @return `bytes4(keccak256("onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)"))` if transfer is allowed
     */
    function onERC1155BatchReceived(
        address operator,
        address from,
        uint256[] calldata ids,
        uint256[] calldata values,
        bytes calldata data
    ) external returns (bytes4);
}

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



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol)

pragma solidity ^0.8.0;

import "./IERC165.sol";

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