import type { Ref } from 'vue';
// import { Message as $msg } from '@arco-design/web-vue';
import { getToken } from '@/api/system';
import E2EEWorker from 'livekit-client/e2ee-worker?worker';
import type {
  // ChatMessage,
  RoomConnectOptions,
  RoomOptions,
  // ScalabilityMode,
  // SimulationScenario,
  // VideoCaptureOptions,
  // VideoCodec,
} from 'livekit-client';
import {
  ConnectionQuality,
  ConnectionState,
  DisconnectReason,
  ExternalE2EEKeyProvider,
  LocalAudioTrack,
  // LocalParticipant,
  LogLevel,
  MediaDeviceFailure,
  Participant,
  ParticipantEvent,
  RemoteParticipant,
  // RemoteTrackPublication,
  // RemoteVideoTrack,
  Room,
  RoomEvent,
  ScreenSharePresets,
  // Track,
  TrackPublication,
  // VideoPresets,
  // VideoQuality,
  // createAudioAnalyser,
  setLogLevel,
  // supportsAV1,
  // supportsVP9,
} from 'livekit-client';
import FingerprintJS from '@fingerprintjs/fingerprintjs';

// 指纹
const getFingerprint = async () => {
  const fpPromise = FingerprintJS.load();
  const fp = await fpPromise;
  const result = await fp.get();
  // const components = {
  //   languages: result.components.languages,
  //   colorDepth: result.components.colorDepth,
  //   deviceMemory: result.components.deviceMemory,
  //   hardwareConcurrency: result.components.hardwareConcurrency,
  //   timezone: result.components.timezone,
  //   platform: result.components.platform,
  //   vendor: result.components.vendor,
  //   vendorFlavors: result.components.vendorFlavors,
  //   cookiesEnabled: result.components.cookiesEnabled,
  //   colorGamut: result.components.colorGamut,
  //   hdr: result.components.hdr,
  //   videoCard: result.components.videoCard,
  // };
  return result.visitorId;
};

const state = {
  isFrontFacing: false,
  encoder: new TextEncoder(),
  decoder: new TextDecoder(),
  defaultDevices: new Map<MediaDeviceKind, string>(),
  bitrateInterval: undefined as any,
  e2eeKeyProvider: new ExternalE2EEKeyProvider(),
};

let currentRoom: Room | undefined;

let startTime: number;

function appendLog(...args: any[]) {
  let logger = '';
  for (let i = 0; i < arguments.length; i += 1) {
    if (typeof args[i] === 'object') {
      logger += `${
        JSON && JSON.stringify ? JSON.stringify(args[i], undefined, 2) : args[i]
      } `;
    } else {
      logger += `${args[i]} `;
    }
  }
  // eslint-disable-next-line no-console
  console.log(logger);
}

function participantConnected(participant: Participant) {
  appendLog(
    'participant',
    participant.identity,
    'connected',
    participant.metadata
  );
  // eslint-disable-next-line no-console
  console.log('tracks', participant.trackPublications);
  participant
    .on(ParticipantEvent.TrackMuted, (pub: TrackPublication) => {
      appendLog('track was muted', pub.trackSid, participant.identity);
    })
    .on(ParticipantEvent.TrackUnmuted, (pub: TrackPublication) => {
      appendLog('track was unmuted', pub.trackSid, participant.identity);
    })
    .on(ParticipantEvent.IsSpeakingChanged, () => {
      // eslint-disable-next-line no-console
      console.log(participant);
    })
    .on(ParticipantEvent.ConnectionQualityChanged, () => {
      // eslint-disable-next-line no-console
      console.log(participant);
    });
}

function participantDisconnected(participant: RemoteParticipant) {
  appendLog('participant', participant.sid, 'disconnected');

  // eslint-disable-next-line no-console
  console.log(participant);
}

function handleRoomDisconnect(reason?: DisconnectReason) {
  if (!currentRoom) return;
  appendLog('disconnected from room', { reason });
  currentRoom = undefined;
  (window as { [k: string]: any }).currentRoom = undefined;
}

const connectToRoom = async (
  url: string,
  token: string,
  roomOptions?: RoomOptions,
  connectOptions?: RoomConnectOptions,
  shouldPublish?: boolean
): Promise<Room | undefined> => {
  const room = new Room(roomOptions);

  startTime = Date.now();
  await room.prepareConnection(url, token);
  const prewarmTime = Date.now() - startTime;
  appendLog(`prewarmed connection in ${prewarmTime}ms`);

  room
    .on(RoomEvent.ParticipantConnected, participantConnected)
    .on(RoomEvent.ParticipantDisconnected, participantDisconnected)
    .on(RoomEvent.Disconnected, handleRoomDisconnect)
    .on(RoomEvent.Reconnecting, () => appendLog('Reconnecting to room'))
    .on(RoomEvent.Reconnected, async () => {
      appendLog(
        'Successfully reconnected. server',
        await room.engine.getConnectedServerAddress()
      );
    })
    .on(RoomEvent.LocalTrackPublished, (pub) => {
      const track = pub.track as LocalAudioTrack;

      if (track instanceof LocalAudioTrack) {
        // const { calculateVolume } = createAudioAnalyser(track);
        // setInterval(() => {
        //   $('local-volume')?.setAttribute(
        //     'value',
        //     calculateVolume().toFixed(4)
        //   );
        // }, 200);
      }
    })
    .on(RoomEvent.RoomMetadataChanged, (metadata) => {
      appendLog('new metadata for room', metadata);
    })
    .on(RoomEvent.MediaDevicesError, (e: Error) => {
      const failure = MediaDeviceFailure.getFailure(e);
      appendLog('media device failure', failure);
    })
    .on(
      RoomEvent.ConnectionQualityChanged,
      (quality: ConnectionQuality, participant?: Participant) => {
        appendLog('connection quality changed', participant?.identity, quality);
      }
    )
    .on(RoomEvent.TrackSubscribed, (track, pub, participant) => {
      appendLog('subscribed to track', pub.trackSid, participant.identity);
    })
    .on(RoomEvent.TrackUnsubscribed, (_, pub) => {
      appendLog('unsubscribed from track', pub.trackSid);
    })
    .on(RoomEvent.SignalConnected, async () => {
      const signalConnectionTime = Date.now() - startTime;
      appendLog(`signal connection established in ${signalConnectionTime}ms`);
      // speed up publishing by starting to publish before it's fully connected
      // publishing is accepted as soon as signal connection has established
      if (shouldPublish) {
        await room.localParticipant.enableCameraAndMicrophone();
        appendLog(`tracks published in ${Date.now() - startTime}ms`);
      }
    })
    .on(RoomEvent.TrackStreamStateChanged, (pub, streamState, participant) => {
      appendLog(
        `stream state changed for ${pub.trackSid} (${
          participant.identity
        }) to ${streamState.toString()}`
      );
    });

  try {
    // read and set current key from input
    const cryptoKey = '';
    const e2eChack = false;
    state.e2eeKeyProvider.setKey(cryptoKey);
    if (e2eChack) {
      await room.setE2EEEnabled(true);
    }

    await room.connect(url, token, connectOptions);
    const elapsed = Date.now() - startTime;
    appendLog(
      `successfully connected to ${room.name} in ${Math.round(elapsed)}ms`,
      await room.engine.getConnectedServerAddress()
    );
  } catch (error: any) {
    let message: any = error;
    if (error.message) {
      message = error.message;
    }
    appendLog('could not connect:', message);
    return undefined;
  }
  currentRoom = room;
  (window as { [k: string]: any }).currentRoom = room;

  room.remoteParticipants.forEach((participant) => {
    participantConnected(participant);
  });
  participantConnected(room.localParticipant);

  return room;
};

function renderBitrate() {
  if (!currentRoom || currentRoom.state !== ConnectionState.Connected) {
    return;
  }
  const participants: Participant[] = [
    ...currentRoom.remoteParticipants.values(),
  ];
  participants.push(currentRoom.localParticipant);

  // eslint-disable-next-line no-restricted-syntax
  for (const p of participants) {
    let totalBitrate = 0;
    // eslint-disable-next-line no-restricted-syntax
    for (const t of p.trackPublications.values()) {
      if (t.track) {
        totalBitrate += t.track.currentBitrate;
      }

      // if (t.source === Track.Source.Camera) {
      //   if (t.videoTrack instanceof RemoteVideoTrack) {
      //     // eslint-disable-next-line no-console
      //     console.log(t.videoTrack.getDecoderImplementation() ?? '');
      //   }
      // }
    }
    let displayText = '';
    if (totalBitrate > 0) {
      displayText = `${Math.round(totalBitrate / 1024).toLocaleString()} kbps`;
    }
    // eslint-disable-next-line no-console
    console.log(displayText);
  }
}

const connectWithFormInput = async (
  url: any,
  token: any,
  disabled: Ref<string>
) => {
  const simulcast = true; // 同步播出
  const dynacast = true; // Dynacast
  const forceTURN = false; // 强制转向
  const adaptiveStream = true; // 自适应流
  const shouldPublish = true; // 发布
  // const preferredCodec = '' as VideoCodec;
  // const scalabilityMode = '';
  // const cryptoKey = '';
  const autoSubscribe = true; // 自动订阅
  const e2eeEnabled = false;
  const audioOutputId = ''; // E2EE密钥
  setLogLevel(LogLevel.debug);

  const roomOpts: RoomOptions = {
    adaptiveStream,
    dynacast,
    audioOutput: {
      deviceId: audioOutputId,
    },
    publishDefaults: {
      simulcast,
      // videoSimulcastLayers: [VideoPresets.h90, VideoPresets.h216],
      // videoCodec: preferredCodec || 'vp8',
      dtx: true,
      red: true,
      forceStereo: false,
      screenShareEncoding: ScreenSharePresets.h1080fps30.encoding,
      scalabilityMode: 'L3T3_KEY',
    },
    // videoCaptureDefaults: {
    //   resolution: VideoPresets.h720.resolution,
    // },
    e2ee: e2eeEnabled
      ? { keyProvider: state.e2eeKeyProvider, worker: new E2EEWorker() }
      : undefined,
  };
  // if (
  //   roomOpts.publishDefaults?.videoCodec === 'av1' ||
  //   roomOpts.publishDefaults?.videoCodec === 'vp9'
  // ) {
  //   roomOpts.publishDefaults.backupCodec = true;
  //   if (scalabilityMode !== '') {
  //     roomOpts.publishDefaults.scalabilityMode =
  //       scalabilityMode as ScalabilityMode;
  //   }
  // }

  const connectOpts: RoomConnectOptions = {
    autoSubscribe,
  };
  if (forceTURN) {
    connectOpts.rtcConfig = {
      iceTransportPolicy: 'relay',
    };
  }
  await connectToRoom(url, token, roomOpts, connectOpts, shouldPublish);
  disabled.value = 'open';

  state.bitrateInterval = setInterval(renderBitrate, 1000);
};

const disconnectRoom = (disabled: Ref<string>) => {
  if (currentRoom) {
    currentRoom.disconnect();
  }
  if (state.bitrateInterval) {
    clearInterval(state.bitrateInterval);
  }
  disabled.value = 'close';
};

export const IntercomFn = async (disabled: Ref<string>, guid: string) => {
  if (disabled.value === 'open') {
    disconnectRoom(disabled);
    return;
  }
  disabled.value = 'loading';
  const fingerprint = await getFingerprint();
  const token = await getToken({ Room: guid, Identity: fingerprint });
  connectWithFormInput(
    `wss://${import.meta.env.VITE_API_INTERCOM_IP}`,
    token,
    disabled
  );
};

export default null;