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

/**
 * @title Multicall
 * @notice Allows batching multiple contract calls into a single transaction
 * @dev This contract enables efficient execution of multiple function calls
 *      in a single transaction, reducing gas costs and improving UX
 */
contract Multicall {
    /**
     * @notice Executes multiple function calls in a single transaction
     * @param calls An array of call data structures containing target address, value, and calldata
     * @return results An array of return data from each call
     * @return successes An array of boolean values indicating whether each call succeeded
     * @dev If a call fails, it will not revert the entire transaction but will mark that call as failed
     */
    function multicall(
        Call[] calldata calls
    ) external payable returns (bytes[] memory results, bool[] memory successes) {
        results = new bytes[](calls.length);
        successes = new bool[](calls.length);

        for (uint256 i = 0; i < calls.length; i++) {
            (bool success, bytes memory result) = calls[i].target.call{
                value: calls[i].value
            }(calls[i].callData);

            successes[i] = success;
            results[i] = result;
        }
    }

    /**
     * @notice Executes multiple function calls in a single transaction, reverting if any call fails
     * @param calls An array of call data structures containing target address, value, and calldata
     * @return results An array of return data from each call
     * @dev If any call fails, the entire transaction will revert
     */
    function multicallRevertOnFailure(
        Call[] calldata calls
    ) external payable returns (bytes[] memory results) {
        results = new bytes[](calls.length);

        for (uint256 i = 0; i < calls.length; i++) {
            (bool success, bytes memory result) = calls[i].target.call{
                value: calls[i].value
            }(calls[i].callData);

            if (!success) {
                // Bubble up the revert reason if available
                if (result.length > 0) {
                    assembly {
                        let returndata_size := mload(result)
                        revert(add(32, result), returndata_size)
                    }
                } else {
                    revert MulticallFailed(i);
                }
            }

            results[i] = result;
        }
    }

    /**
     * @notice Executes multiple function calls and returns results, allowing partial failures
     * @param targets An array of target contract addresses
     * @param callDataArray An array of calldata for each call
     * @param values An array of native token values to send with each call
     * @return results An array of return data from each call
     * @return successes An array of boolean values indicating whether each call succeeded
     */
    function aggregate(
        address[] calldata targets,
        bytes[] calldata callDataArray,
        uint256[] calldata values
    ) external payable returns (bytes[] memory results, bool[] memory successes) {
        require(
            targets.length == callDataArray.length &&
                targets.length == values.length,
            "Multicall: array length mismatch"
        );

        results = new bytes[](targets.length);
        successes = new bool[](targets.length);

        for (uint256 i = 0; i < targets.length; i++) {
            (bool success, bytes memory result) = targets[i].call{
                value: values[i]
            }(callDataArray[i]);

            successes[i] = success;
            results[i] = result;
        }
    }

    /**
     * @notice Executes multiple function calls and returns results, reverting on any failure
     * @param targets An array of target contract addresses
     * @param callDataArray An array of calldata for each call
     * @param values An array of native token values to send with each call
     * @return results An array of return data from each call
     */
    function aggregateRevertOnFailure(
        address[] calldata targets,
        bytes[] calldata callDataArray,
        uint256[] calldata values
    ) external payable returns (bytes[] memory results) {
        require(
            targets.length == callDataArray.length &&
                targets.length == values.length,
            "Multicall: array length mismatch"
        );

        results = new bytes[](targets.length);

        for (uint256 i = 0; i < targets.length; i++) {
            (bool success, bytes memory result) = targets[i].call{
                value: values[i]
            }(callDataArray[i]);

            if (!success) {
                // Bubble up the revert reason if available
                if (result.length > 0) {
                    assembly {
                        let returndata_size := mload(result)
                        revert(add(32, result), returndata_size)
                    }
                } else {
                    revert MulticallFailed(i);
                }
            }

            results[i] = result;
        }
    }

    /**
     * @notice Structure representing a single call
     * @param target The address of the contract to call
     * @param value The amount of native tokens to send with the call
     * @param callData The calldata to send with the call
     */
    struct Call {
        address target;
        uint256 value;
        bytes callData;
    }

    /**
     * @notice Error thrown when a multicall fails
     * @param index The index of the failed call
     */
    error MulticallFailed(uint256 index);
}

{
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "evmVersion": "paris",
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  }
}

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[{"inputs":[{"internalType":"uint256","name":"index","type":"uint256"}],"name":"MulticallFailed","type":"error"},{"inputs":[{"internalType":"address[]","name":"targets","type":"address[]"},{"internalType":"bytes[]","name":"callDataArray","type":"bytes[]"},{"internalType":"uint256[]","name":"values","type":"uint256[]"}],"name":"aggregate","outputs":[{"internalType":"bytes[]","name":"results","type":"bytes[]"},{"internalType":"bool[]","name":"successes","type":"bool[]"}],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address[]","name":"targets","type":"address[]"},{"internalType":"bytes[]","name":"callDataArray","type":"bytes[]"},{"internalType":"uint256[]","name":"values","type":"uint256[]"}],"name":"aggregateRevertOnFailure","outputs":[{"internalType":"bytes[]","name":"results","type":"bytes[]"}],"stateMutability":"payable","type":"function"},{"inputs":[{"components":[{"internalType":"address","name":"target","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"},{"internalType":"bytes","name":"callData","type":"bytes"}],"internalType":"struct Multicall.Call[]","name":"calls","type":"tuple[]"}],"name":"multicall","outputs":[{"internalType":"bytes[]","name":"results","type":"bytes[]"},{"internalType":"bool[]","name":"successes","type":"bool[]"}],"stateMutability":"payable","type":"function"},{"inputs":[{"components":[{"internalType":"address","name":"target","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"},{"internalType":"bytes","name":"callData","type":"bytes"}],"internalType":"struct Multicall.Call[]","name":"calls","type":"tuple[]"}],"name":"multicallRevertOnFailure","outputs":[{"internalType":"bytes[]","name":"results","type":"bytes[]"}],"stateMutability":"payable","type":"function"}]

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