// SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;

import "./PriceFeedKeeper.sol";

/**
 * @title ChainlinkKeeperCompatible
 * @notice Chainlink Keepers compatible wrapper for PriceFeedKeeper
 * @dev Implements AutomationCompatibleInterface for Chainlink Automation
 *
 * Note: This interface matches Chainlink's AutomationCompatibleInterface.
 * If Chainlink contracts are installed, you can import from:
 * chainlink/contracts/src/v0.8/interfaces/AutomationCompatibleInterface.sol
 */
interface AutomationCompatibleInterface {
    function checkUpkeep(bytes calldata checkData) external view returns (bool upkeepNeeded, bytes memory performData);
    function performUpkeep(bytes calldata performData) external;
}

contract ChainlinkKeeperCompatible is AutomationCompatibleInterface {
    PriceFeedKeeper public immutable keeper;

    constructor(address keeperAddress) {
        keeper = PriceFeedKeeper(keeperAddress);
    }

    /**
     * @notice Chainlink checkUpkeep function
     * @param checkData Encoded data (unused for our keeper)
     * @return upkeepNeeded True if upkeep is needed
     * @return performData Encoded data for performUpkeep
     */
    function checkUpkeep(bytes calldata checkData)
        external
        view
        override
        returns (bool upkeepNeeded, bytes memory performData)
    {
        (bool needsUpdate, address[] memory assets) = keeper.checkUpkeep();

        if (needsUpdate && assets.length > 0) {
            upkeepNeeded = true;
            performData = abi.encode(assets);
        } else {
            upkeepNeeded = false;
            performData = "";
        }

        // Use checkData if provided (for custom filtering)
        if (checkData.length > 0) {
            // Custom logic can be added here
        }
    }

    /**
     * @notice Chainlink performUpkeep function
     * @param performData Encoded data from checkUpkeep
     */
    function performUpkeep(bytes calldata performData) external override {
        if (performData.length > 0) {
            address[] memory assets = abi.decode(performData, (address[]));
            keeper.updateAssets(assets);
        } else {
            keeper.performUpkeep();
        }
    }
}