import 'package:star_lock/talk/startChart/constant/payload_type_constant.dart';
import 'package:star_lock/talk/startChart/constant/protocol_flag_constant.dart';
import 'package:star_lock/talk/startChart/entity/scp_message.dart';

class MessageCommand {
  /// 客户端去中继上线命令
  static List<int> goOnlineRelay() {
    String serializedBytesString = ScpMessage(
      ProtocolFlag: ProtocolFlagConstant.scp01,
      MessageType: PayloadTypeConstant.goOnline,
      MessageId: 1,
      SpTotal: 0,
      SpIndex: 0,
    ).serialize();
    return _hexToBytes(serializedBytesString);
  }

  // 回声测试消息
  static List<int> echoMessage({
    required String ToPeerId,
    required String FromPeerId,
  }) {
    ScpMessage message = ScpMessage(
      ProtocolFlag:  ProtocolFlagConstant.scp01,
      MessageType: PayloadTypeConstant.echoTest,
      MessageId: 1,
      SpTotal: 0,
      SpIndex: 0,
      FromPeerId: FromPeerId,
      ToPeerId: ToPeerId,
      Payload: 'hello',
      PayloadCRC: 55230,
      PayloadLength: 5,
      PayloadType: 1,
    );

    String serializedBytesString = message.serialize();
    return _hexToBytes(serializedBytesString);
  }

  // 心跳消息
  static List<int> heartbeatMessage() {
    ScpMessage message = ScpMessage(
      ProtocolFlag:  ProtocolFlagConstant.scp01,
      MessageType: PayloadTypeConstant.heartbeat,
      MessageId: 1,
      SpTotal: 0,
      SpIndex: 0,
      // FromPeerId: FromPeerId,
      // ToPeerId: ToPeerId,
      // Payload: 'hello',
      // PayloadCRC: 55230,
      // PayloadLength: 5,
      // PayloadType: 1,
    );

    String serializedBytesString = message.serialize();
    return _hexToBytes(serializedBytesString);
  }

  // 辅助方法：将16进制字符串转换为字节列表
  static List<int> _hexToBytes(String hex) {
    final bytes = <int>[];
    for (int i = 0; i < hex.length; i += 2) {
      bytes.add(int.parse(hex.substring(i, i + 2), radix: 16));
    }
    return bytes;
  }
}