//Imported from alto contracts
//https://github.com/pimlicolabs/alto/blob/main/contracts/src/PimlicoEntryPointSimulations/PimlicoEntryPointSimulations.sol
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;

import "./EntryPointSimulations.sol";
import "@account-abstraction/contracts/utils/Exec.sol";

contract PimlicoEntryPointSimulations {
    // EntryPointSimulations internal eps = new EntryPointSimulations();
    // Deploy EntryPointSimulations and just set address immutable.
    // This has several benefits: slight gas cost optimization + more composable architecture
    EntryPointSimulations internal immutable eps;

    uint256 private constant REVERT_REASON_MAX_LEN = 2048;
    bytes4 private constant selector = bytes4(keccak256("delegateAndRevert(address,bytes)"));

    constructor(EntryPointSimulations _eps) {
        eps = _eps;
    }

    function simulateEntryPoint(address payable ep, bytes[] memory data) public returns (bytes[] memory) {
        bytes[] memory returnDataArray = new bytes[](data.length);

        for (uint i = 0; i < data.length; i++) {
            bytes memory returnData;
            bytes memory callData = abi.encodeWithSelector(selector, address(eps), data[i]);
            bool success = Exec.call(ep, 0, callData, gasleft());
            if (!success) {
                returnData = Exec.getReturnData(REVERT_REASON_MAX_LEN);
            }
            returnDataArray[i] = returnData;
        }

        return returnDataArray;
    }
}