// SPDX-License-Identifier: MIT
pragma solidity 0.8.16;

import "../interfaces/KeeperCompatibleInterface.sol";

contract PerformDataChecker is KeeperCompatibleInterface {
  uint256 public counter;
  bytes public s_expectedData;

  constructor(bytes memory expectedData) {
    s_expectedData = expectedData;
  }

  function setExpectedData(bytes calldata expectedData) external {
    s_expectedData = expectedData;
  }

  function checkUpkeep(
    bytes calldata checkData
  ) external view override returns (bool upkeepNeeded, bytes memory performData) {
    return (keccak256(checkData) == keccak256(s_expectedData), checkData);
  }

  function performUpkeep(bytes calldata performData) external override {
    if (keccak256(performData) == keccak256(s_expectedData)) {
      counter++;
    }
  }
}