app-starlock/lib/talk/starChart/handle/impl/udp_heart_beat_handler.dart

import 'dart:typed_data';

import 'package:star_lock/talk/starChart/constant/payload_type_constant.dart';
import 'package:star_lock/talk/starChart/entity/heartbeat_response.dart';
import 'package:star_lock/talk/starChart/entity/login_response.dart';
import 'package:star_lock/talk/starChart/entity/scp_message.dart';
import 'package:star_lock/talk/starChart/handle/scp_message_base_handle.dart';
import 'package:star_lock/talk/starChart/handle/scp_message_handle.dart';

import '../../star_chart_manage.dart';

class UdpHeartBeatHandler extends ScpMessageBaseHandle
    implements ScpMessageHandler {
  @override
  void handleReq(ScpMessage scpMessage) {
    // TODO: 收到心跳消息请求
  }

  @override
  void handleResp(ScpMessage scpMessage) {
    final HeartbeatResponse heartbeatResponse = scpMessage.Payload;
    final statusCode = heartbeatResponse.statusCode;
    if (statusCode != null &&
        statusCode != PayloadTypeConstant.heartHeatSuccessResponse) {
      // 心跳回复失败，停止发送心跳
      startChartManage.stopHeartbeat();
      // 心跳响应失败，重新上线
      startChartManage.isOnlineStarChartServer = false;
      startChartManage.reStartOnlineStartChartServer();
    } else {
      // 修改间隔为返回的心跳间隔
      startChartManage.heartbeatIntervalTime =
          heartbeatResponse.nextPingTime ?? 1;
      // 修改完间隔之后重新启动发送心跳
      startChartManage.reStartHeartBeat();
    }
  }

  @override
  void handleInvalidReq(ScpMessage scpMessage) {}

  @override
  void handleRealTimeData(ScpMessage scpMessage) {}

  @override
  deserializePayload(
      {required int payloadType,
      required int messageType,
      required List<int> byte,
      int? offset,
      int? PayloadLength,
      int? spTotal,
      int? spIndex,
      int? messageId}) {
    // 心跳
    HeartbeatResponse heartbeatResponse = HeartbeatResponse.fromBytes(byte);
    return heartbeatResponse;
  }
}