import 'package:flutter_test/flutter_test.dart';
import 'package:tencent_rtc_sdk/trtc_cloud_def.dart';
import 'package:tencent_rtc_sdk/trtc_cloud_listener.dart';
import 'package:tencent_rtc_sdk/tx_audio_effect_manager.dart';
import 'package:yumi/services/audio/room_rtc_engine_adapter.dart';
import 'package:yumi/services/audio/room_rtc_types.dart';
import 'package:yumi/services/audio/trtc_room_rtc_engine_adapter.dart';

void main() {
  test('enters TRTC voice room with strRoomId and business userId', () async {
    final cloud = _FakeTrtcCloud();
    final adapter = TrtcRoomRtcEngineAdapter(cloudFactory: () async => cloud);

    await adapter.enterRoomAsAudience(
      const RoomRtcEnterRoomConfig(
        identity: RoomRtcSessionIdentity(
          businessRoomId: 'business-room',
          trtcStrRoomId: 'room-account',
          trtcUserId: 'user-id',
        ),
        trtcSdkAppId: 20036101,
        trtcUserSig: 'sig',
        throwOnError: true,
      ),
    );

    expect(cloud.enteredParams?.sdkAppId, 20036101);
    expect(cloud.enteredParams?.roomId, 0);
    expect(cloud.enteredParams?.strRoomId, 'room-account');
    expect(cloud.enteredParams?.userId, 'user-id');
    expect(cloud.enteredParams?.userSig, 'sig');
    expect(cloud.enteredParams?.role, TRTCRoleType.audience);
    expect(cloud.enteredScene, TRTCAppScene.voiceChatRoom);
    expect(cloud.autoRecvAudio, isTrue);
    expect(cloud.autoRecvVideo, isFalse);
    expect(cloud.volumeEvaluationEnabled, isTrue);
  });

  test('switches between anchor and audience with local audio state', () async {
    final cloud = _FakeTrtcCloud();
    final adapter = TrtcRoomRtcEngineAdapter(cloudFactory: () async => cloud);

    await _enter(adapter);
    expect(
      await adapter.switchToAnchor(const RoomRtcAnchorConfig(muted: true)),
      isTrue,
    );
    expect(cloud.lastRole, TRTCRoleType.anchor);
    expect(cloud.localAudioStarted, isTrue);
    expect(cloud.localAudioMuted, isTrue);

    expect(await adapter.switchToAudience(), isTrue);
    expect(cloud.lastRole, TRTCRoleType.audience);
    expect(cloud.localAudioStopped, isTrue);
    expect(cloud.localAudioMuted, isTrue);
  });

  test('maps TRTC music calls to AudioEffectManager', () async {
    final cloud = _FakeTrtcCloud();
    final adapter = TrtcRoomRtcEngineAdapter(cloudFactory: () async => cloud);
    final states = <RoomRtcAudioMixingState>[];
    final musicAdapter = TrtcRoomRtcEngineAdapter(
      cloudFactory: () async => cloud,
      onAudioMixingStateChanged: (state, _) => states.add(state),
    );

    await _enter(adapter);
    await _enter(musicAdapter);
    await musicAdapter.startAudioMixing(
      const RoomRtcAudioMixingConfig(
        filePath: '/tmp/a.mp3',
        loopback: false,
        cycle: 3,
        startPos: 1200,
      ),
    );

    final musicParam = cloud.audioEffectManager.startedMusicParam!;
    expect(musicParam.id, 1);
    expect(musicParam.path, '/tmp/a.mp3');
    expect(musicParam.publish, isTrue);
    expect(musicParam.loopCount, 2);
    expect(musicParam.startTimeMS, 1200);
    expect(states, contains(RoomRtcAudioMixingState.playing));

    await musicAdapter.pauseAudioMixing();
    await musicAdapter.resumeAudioMixing();
    await musicAdapter.setAudioMixingVolume(80);

    expect(cloud.audioEffectManager.pausedIds, contains(1));
    expect(cloud.audioEffectManager.resumedIds, contains(1));
    expect(cloud.audioEffectManager.playoutVolume, 80);
    expect(cloud.audioEffectManager.publishVolume, 80);
  });
}

Future<void> _enter(TrtcRoomRtcEngineAdapter adapter) {
  return adapter.enterRoomAsAudience(
    const RoomRtcEnterRoomConfig(
      identity: RoomRtcSessionIdentity(
        businessRoomId: 'business-room',
        trtcStrRoomId: 'room-account',
        trtcUserId: 'user-id',
      ),
      trtcSdkAppId: 20036101,
      trtcUserSig: 'sig',
      throwOnError: true,
    ),
  );
}

class _FakeTrtcCloud implements RoomTrtcCloud {
  final _FakeAudioEffectManager audioEffectManager = _FakeAudioEffectManager();

  TRTCCloudListener? listener;
  TRTCParams? enteredParams;
  TRTCAppScene? enteredScene;
  TRTCRoleType? lastRole;
  bool? autoRecvAudio;
  bool? autoRecvVideo;
  bool volumeEvaluationEnabled = false;
  bool localAudioStarted = false;
  bool localAudioStopped = false;
  bool localAudioMuted = false;

  @override
  void registerListener(TRTCCloudListener listener) {
    this.listener = listener;
  }

  @override
  void unRegisterListener(TRTCCloudListener listener) {
    if (this.listener == listener) {
      this.listener = null;
    }
  }

  @override
  void setDefaultStreamRecvMode(bool autoRecvAudio, bool autoRecvVideo) {
    this.autoRecvAudio = autoRecvAudio;
    this.autoRecvVideo = autoRecvVideo;
  }

  @override
  void enableAudioVolumeEvaluation(
    bool enable,
    TRTCAudioVolumeEvaluateParams params,
  ) {
    volumeEvaluationEnabled = enable;
  }

  @override
  void enterRoom(TRTCParams param, TRTCAppScene scene) {
    enteredParams = param;
    enteredScene = scene;
    listener?.onEnterRoom?.call(10);
  }

  @override
  void exitRoom() {
    listener?.onExitRoom?.call(0);
  }

  @override
  void switchRole(TRTCRoleType role) {
    lastRole = role;
  }

  @override
  void startLocalAudio(TRTCAudioQuality quality) {
    localAudioStarted = true;
  }

  @override
  void stopLocalAudio() {
    localAudioStopped = true;
  }

  @override
  void muteLocalAudio(bool mute) {
    localAudioMuted = mute;
  }

  @override
  void muteAllRemoteAudio(bool mute) {}

  @override
  RoomTrtcAudioEffectManager getAudioEffectManager() {
    return audioEffectManager;
  }
}

class _FakeAudioEffectManager implements RoomTrtcAudioEffectManager {
  TXMusicPlayObserver? observer;
  AudioMusicParam? startedMusicParam;
  final pausedIds = <int>[];
  final resumedIds = <int>[];
  int? playoutVolume;
  int? publishVolume;
  int position = 0;

  @override
  void setMusicObserver(int musicId, TXMusicPlayObserver? observer) {
    this.observer = observer;
  }

  @override
  void startPlayMusic(AudioMusicParam musicParam) {
    startedMusicParam = musicParam;
    observer?.onStart(musicParam.id, 0);
  }

  @override
  void stopPlayMusic(int id) {}

  @override
  void pausePlayMusic(int id) {
    pausedIds.add(id);
  }

  @override
  void resumePlayMusic(int id) {
    resumedIds.add(id);
  }

  @override
  void setMusicPublishVolume(int id, int volume) {
    publishVolume = volume;
  }

  @override
  void setMusicPlayoutVolume(int id, int volume) {
    playoutVolume = volume;
  }

  @override
  int getMusicCurrentPosInMS(int id) {
    return position;
  }

  @override
  int getMusicDurationInMS(String path) {
    return 3000;
  }

  @override
  void seekMusicToPosInTime(int id, int pts) {
    position = pts;
  }
}