app-starlock/lib/talk/startChart/handle/impl/udp_talk_accept_handler.dart

import 'dart:convert';
import 'dart:typed_data';

import 'package:flutter_easyloading/flutter_easyloading.dart';
import 'package:get/get.dart';
import 'package:star_lock/talk/startChart/constant/message_type_constant.dart';
import 'package:star_lock/talk/startChart/entity/scp_message.dart';
import 'package:star_lock/talk/startChart/handle/scp_message_base_handle.dart';
import 'package:star_lock/talk/startChart/handle/scp_message_handle.dart';
import 'package:star_lock/talk/startChart/proto/gateway_reset.pb.dart';
import 'package:star_lock/talk/startChart/proto/generic.pb.dart';
import 'package:star_lock/talk/startChart/proto/talk_accept.pb.dart';

import '../../start_chart_manage.dart';

class UdpTalkAcceptHandler extends ScpMessageBaseHandle
    implements ScpMessageHandler {
  @override
  void handleReq(ScpMessage scpMessage) {
    print('收到同意接听请求');
    // 回复同意接听消息
    startChartManage.sendGenericRespSuccessMessage(
      ToPeerId: scpMessage.FromPeerId!,
      FromPeerId: scpMessage.ToPeerId!,
      PayloadType: scpMessage.PayloadType!,
    );
  }

  @override
  void handleResp(ScpMessage scpMessage) {
    // 收到同意接听回复
    final GenericResp genericResp = scpMessage.Payload;
    if (checkGenericRespSuccess(genericResp)) {
      // 启动发送预期数据请求
      _handleStartSendTalkExpectDataRequest();
      Future.delayed(Duration(seconds: 1), () {
        print('启动定时器判断');
        // 启动通话保持定时器
        _handleStartTalkPing();
        // 启动通话数据检查的定时器
        _handleCheckTalkDataTimer();
      });
      // 停止播放铃声
      stopRingtone();
      // 设置状态为接听中
      talkStatus.setAnsweredSuccessfully();
      talkStatus.setDuringCall();
    }
  }

  @override
  void handleInvalidReq(ScpMessage scpMessage) {}

  @override
  void handleRealTimeData(ScpMessage scpMessage) {}

  @override
  deserializePayload(
      {required int payloadType,
      required int messageType,
      required Uint8List byte,
      int? offset,
      int? PayloadLength,
      int? spTotal,
      int? spIndex,
      int? messageId}) {
    if (messageType == MessageTypeConstant.Resp) {
      final GenericResp genericResp = GenericResp();
      genericResp.mergeFromBuffer(byte);
      return genericResp;
    } else if (messageType == MessageTypeConstant.Req) {
      final TalkAcceptReq talkAccept = TalkAcceptReq();
      talkAccept.mergeFromBuffer(byte);
      return talkAccept;
    } else {
      String payload = utf8.decode(byte);
      return payload;
    }
  }

  // 启动通话保持，判断x秒内是否收到通话保持
  void _handleStartTalkPing() {
    // 启动通话保持
    startChartManage.startTalkPingMessageTimer();
    // 启动通话保持监听定时器（用来判断如果x秒内没有收到通话保持则执行的操作）
    talkePingOverTimeTimerManager.startTimer();
    // 设置通话保持超时后的事件
    talkePingOverTimeTimerManager.setOnTimeout(() {
      EasyLoading.showToast('通话异常中断', duration: 2000.milliseconds);
      // 停止发送通话保持的命令
      startChartManage.stopTalkPingMessageTimer();
      startChartManage.stopTalkExpectMessageTimer();
      talkStatus.setNotTalkPing();
      talkStatus.setEnd();
    });
  }

  /// 启动通话数据的检查，判断x秒内是否收到通话数据
  void _handleCheckTalkDataTimer() {
    // 启动对讲数据监听定时器
    talkDataOverTimeTimerManager.startTimer();
    // 设置对讲数据超时后的事件
    talkDataOverTimeTimerManager.setOnTimeout(() {
      EasyLoading.showToast('通话连接失败', duration: 2000.milliseconds);
      startChartManage.stopTalkPingMessageTimer();
      startChartManage.stopTalkExpectMessageTimer();
      talkStatus.setNotTalkData();
      talkStatus.setEnd();
    });
  }

  /// 启动发送预期数据请求
  void _handleStartSendTalkExpectDataRequest() {
    // 启动发送预期数据定时器
    startChartManage.startTalkExpectTimer();
  }
}