// File: @openzeppelin/contracts-0.8/utils/Address.sol



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

pragma solidity ^0.8.0;

/**
 * @dev Collection of functions related to the address type
 */
library Address {
    /**
     * @dev Returns true if `account` is a contract.
     *
     * [IMPORTANT]
     * ====
     * It is unsafe to assume that an address for which this function returns
     * false is an externally-owned account (EOA) and not a contract.
     *
     * Among others, `isContract` will return false for the following
     * types of addresses:
     *
     *  - an externally-owned account
     *  - a contract in construction
     *  - an address where a contract will be created
     *  - an address where a contract lived, but was destroyed
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // This method relies on extcodesize, which returns 0 for contracts in
        // construction, since the code is only stored at the end of the
        // constructor execution.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

// File: src/solc_0.8/Utils/Batch.sol



// SPDX-License-Identifier: MIT

pragma solidity 0.8.2;
pragma experimental ABIEncoderV2;

import "@openzeppelin/contracts-0.8/utils/Address.sol";

contract Batch {
    using Address for address;

    struct Execution {
        address target;
        bytes callData;
    }

    struct ExecutionWithETH {
        address target;
        bytes callData;
        uint256 value;
    }

    struct SingleTargetExecutionWithETH {
        bytes callData;
        uint256 value;
    }

    address public immutable executor;

    constructor(address _executor) {
        executor = _executor;
    }

    modifier onlyExecutor() {
        require(msg.sender == executor, "NOT_AUTHORIZED");
        _;
    }

    function atomicBatchWithETH(ExecutionWithETH[] calldata executions) external payable onlyExecutor {
        for (uint256 i = 0; i < executions.length; i++) {
            executions[i].target.functionCallWithValue(executions[i].callData, executions[i].value);
        }
    }

    function nonAtomicBatchWithETH(ExecutionWithETH[] calldata executions) external payable onlyExecutor {
        for (uint256 i = 0; i < executions.length; i++) {
            _call(executions[i].target, executions[i].callData, executions[i].value);
        }
    }

    function atomicBatch(Execution[] calldata executions) external onlyExecutor {
        for (uint256 i = 0; i < executions.length; i++) {
            executions[i].target.functionCall(executions[i].callData);
        }
    }

    function nonAtomicBatch(Execution[] calldata executions) external onlyExecutor {
        for (uint256 i = 0; i < executions.length; i++) {
            _call(executions[i].target, executions[i].callData, 0);
        }
    }

    function singleTargetAtomicBatchWithETH(address target, SingleTargetExecutionWithETH[] calldata executions)
        external
        payable
        onlyExecutor
    {
        for (uint256 i = 0; i < executions.length; i++) {
            target.functionCallWithValue(executions[i].callData, executions[i].value);
        }
    }

    function singleTargetNonAtomicBatchWithETH(address target, SingleTargetExecutionWithETH[] calldata executions)
        external
        payable
        onlyExecutor
    {
        for (uint256 i = 0; i < executions.length; i++) {
            _call(target, executions[i].callData, executions[i].value);
        }
    }

    function singleTargetAtomicBatch(address target, bytes[] calldata callDatas) external onlyExecutor {
        for (uint256 i = 0; i < callDatas.length; i++) {
            target.functionCall(callDatas[i]);
        }
    }

    function singleTargetNonAtomicBatch(address target, bytes[] calldata callDatas) external onlyExecutor {
        for (uint256 i = 0; i < callDatas.length; i++) {
            _call(target, callDatas[i], 0);
        }
    }

    function _call(
        address target,
        bytes calldata data,
        uint256 value
    ) internal returns (bool) {
        // solhint-disable-next-line avoid-low-level-calls
        (bool success, ) = target.call{value: value}(data);
        return success;
    }

    // ----------------------------------------------------------------------------------------------------
    // TOKEN RECEPTION
    // ----------------------------------------------------------------------------------------------------

    // ERC1155
    bytes4 private constant ERC1155_IS_RECEIVER = 0x4e2312e0;
    bytes4 private constant ERC1155_RECEIVED = 0xf23a6e61;
    bytes4 private constant ERC1155_BATCH_RECEIVED = 0xbc197c81;

    function onERC1155Received(
        address,
        address,
        uint256,
        uint256,
        bytes calldata
    ) external pure returns (bytes4) {
        return ERC1155_RECEIVED;
    }

    function onERC1155BatchReceived(
        address,
        address,
        uint256[] calldata,
        uint256[] calldata,
        bytes calldata
    ) external pure returns (bytes4) {
        return ERC1155_BATCH_RECEIVED;
    }

    // ERC721

    bytes4 private constant ERC721_IS_RECEIVER = 0x150b7a02;
    bytes4 private constant ERC721_RECEIVED = 0x150b7a02;

    function onERC721Received(
        address,
        address,
        uint256,
        bytes calldata
    ) external pure returns (bytes4) {
        return ERC721_RECEIVED;
    }

    // ERC165
    function supportsInterface(bytes4 _interfaceId) external pure returns (bool) {
        return _interfaceId == 0x01ffc9a7 || _interfaceId == ERC1155_IS_RECEIVER || _interfaceId == ERC721_IS_RECEIVER;
    }
}