import { reactive, ref, Ref } from 'vue'
import * as RongIMLib from '@rongcloud/imlib-next'
import * as RTC from '@rongcloud/plugin-rtc'
import request from '/src/helpers/request'
import { state } from '/src/state'
import event, { LIVE_EVENT_MESSAGE } from './event'
import dayjs from 'dayjs'
// import { SeatsCtrl } from './message-type'

type imConnectStatus = 'connecting' | 'connected' | 'disconnect'

type VideoStatus = 'init' | 'stream' | 'liveing' | 'stopped' | 'error' | 'loading'

export type TrackType = 'microphone' | 'camera' | 'screen'

type ActiveTracks = {
  [key in TrackType]: RTC.RCLocalTrack | null
}

type DeviceStatus = {
  [key in TrackType]: 'init' | 'granted' | 'denied' | 'closed' | 'none'
}

export const START_LIVE_TIME = 'start-live-time'

export const START_LIVE_STATUS = 'start-live-status'

export const VIDEO_DEVICE_ID = 'video-deviceId'

export const AUDIO_DEVICE_ID = 'audio-deviceId'

export const AUDIO_DEVICE_VOLUME = 'audio-device-volume'

const runtime = reactive({
  /** 房间id */
  roomUid: 'LIVE-2112263-12345',
  /** IM连接状态 */
  imConnectStatus: 'connecting' as imConnectStatus,
  // 屏幕分享状态
  screenShareStatus: false,
  // 视频节点
  videoRef: ref<HTMLVideoElement | null>(null),
  // RTC实例
  rtcClient: null as RTC.RCRTCClient | null,
  /** 加入房间实例 */
  joinedRoom: null as RTC.RCLivingRoom | null,
  // Tracks
  mediaStreamTrack: [] as MediaStreamTrack[],
  // 媒体流
  mediaStreams: null as MediaStream | null,
  // 视频状态
  videoStatus: 'init' as VideoStatus,
  // 麦克风设备列表
  microphones: [] as MediaDeviceInfo[],
  // 摄像头设备列表
  cameras: [] as MediaDeviceInfo[],
  // 摄像头设备
  selectedCamera: null as MediaDeviceInfo | null,
  // 麦克风设备
  selectedMicrophone: null as MediaDeviceInfo | null,
  // 点赞数量
  likeCount: 0,
  // 上一次点赞数量
  lastLikeCount: 0,
  /** 当前活跃的数据流 */
  activeTracks: {} as ActiveTracks,
  /** 是否关闭连麦 */
  allowSeatsCtrl: true,
  /** 是否关闭发言 */
  allowChatCtrl: true,
  /** 当前设备获取状态 */
  deviceStatus: {
    microphone: 'init',
    camera: 'init',
    screen: 'init'
  } as DeviceStatus
})

export default runtime


const RONG_IM_TOKEN = 'c9kqb3rdc451j'

RongIMLib.init({
  appkey: RONG_IM_TOKEN,
})

// 注册自定义消息类型

// 控制是否允许连麦
const MessageSeatsCtrl = RongIMLib.registerMessageType('RC:Chatroom:SeatsCtrl', true, true)

// 控制是否允许发言
const MessageChatBan = RongIMLib.registerMessageType('RC:Chatroom:ChatBan', true, true)

// 连麦消息
const MessageSeatApply = RongIMLib.registerMessageType('RC:Chatroom:SeatApply', true, true)

// 响应连麦消息
const MessageSeatResponse = RongIMLib.registerMessageType('RC:Chatroom:SeatResponse', true, true)


type MessageProps = {
  messageType: 'RC:Chatroom:Welcome' | 'RC:TxtMsg' | 'RC:Chatroom:Barrage' | 'RC:Chatroom:Like' | 'RC:Chatroom:SeatsCtrl' | 'RC:Chatroom:ChatBan' | 'RC:Chatroom:SeatApply',
  content: any,
}

type MessageEvent = {
  messages: MessageProps[],
}

const Events = RongIMLib.Events
/**
 * 监听消息通知
 */
 const { MESSAGES, ...RestMessage } = Events
 RongIMLib.addEventListener(Events.MESSAGES, (evt: MessageEvent) => {
   console.log(evt, '收到消息')
   const { messages } = evt
   for (const message of messages) {
    //  console.log(LIVE_EVENT_MESSAGE[message.messageType], message)
     if (LIVE_EVENT_MESSAGE[message.messageType]) {
      event.emit(LIVE_EVENT_MESSAGE[message.messageType], {...message.content, $EventMessage: message})
     }
   }
 })

 for (const Message of Object.values(RestMessage)) {
   RongIMLib.addEventListener(Message, (evt: any) => {
     console.log(Message, evt)
    //  chatroomDestroyed
    event.emit(Message, {$EventMessage: null})
   })
 }

 /**
  * 监听 IM 连接状态变化
  */
 RongIMLib.addEventListener(Events.CONNECTING, () => {
   console.log('connecting')
   runtime.imConnectStatus = 'connecting'
 })

 RongIMLib.addEventListener(Events.CONNECTED, () => {
  console.log('connected')
   runtime.imConnectStatus = 'connected'
 })

 RongIMLib.addEventListener(Events.DISCONNECT, () => {
  console.log('disconnect')
   runtime.imConnectStatus = 'disconnect'
 })

 export const connectIM = async (imToken: string) => {
   try {
    const user = await RongIMLib.connect(imToken)
    runtime.rtcClient = RongIMLib.installPlugin(RTC.installer, {})
    console.log('connect success', user.data?.userId)
    return user
   } catch (error) {
     throw error
   }
 }

/**
 * 设置声音
 * @param video
 * @param Value 声音大小
 */
export const setVolume = (value: number) => {
  localStorage.setItem(AUDIO_DEVICE_VOLUME, value.toString())
  if(runtime.videoRef) {
    runtime.videoRef.volume = value / 100
  }
  // @ts-ignore
  if (runtime.activeTracks.microphone && runtime.activeTracks.microphone._element) {
    // @ts-ignore
    runtime.activeTracks.microphone._element.volume = value / 100
  }
}

/**
 * 设置video视频流
 */

export const setVideoSrcObject = (video: HTMLVideoElement | null, mediaStreams: MediaStream | null) => {
  if (video && mediaStreams) {
    video.srcObject = mediaStreams
    video.onloadedmetadata = () => {
      video.play()
    }
  }
}

/**
 * 发起屏幕共享
 */
export const shareScreenVideo = async () => {
  if (runtime.rtcClient && !runtime.screenShareStatus) {
    const screenTrack = await getTrack('screen')
    const oldTrack = runtime.activeTracks.camera as RTC.RCLocalTrack
    // removeTrack([oldTrack], 'camera')
    runtime.joinedRoom?.unpublish([oldTrack])
    setTrack([screenTrack as RTC.RCLocalTrack], 'screen')
    if (runtime.videoRef) {
      screenTrack.play(runtime.videoRef)
      runtime.screenShareStatus = true
    }
    screenTrack?.on(RTC.RCLocalTrack.EVENT_LOCAL_TRACK_END, (track: RTC.RCLocalTrack) => {
      runtime.screenShareStatus = false
      track.destroy()
      // removeTrack([track], 'screen')
      if (oldTrack) {
        setTrack([oldTrack as RTC.RCLocalTrack], 'camera')
        if (runtime.videoRef) {
          oldTrack.play(runtime.videoRef)
        }
      }
      // setVideoSrcObject(runtime.videoRef, this.mediaStreams)
    })

  }
}

/**
 *
 * 获取所有音频输入设备
 * @returns {Promise<void>}
 */
export const getMicrophones = async () => {
  const microphones = await RTC.device.getMicrophones()
  runtime.microphones = microphones
  return microphones
}

/**
 *
 * 获取所有视频输入设备
 * @returns {Promise<void>}
 */
export const getCameras = async () => {
  const cameras = await RTC.device.getCameras()
  runtime.cameras = cameras
  return cameras
}

/**
 *
 * 设置当前视频设备
 * @param camera MediaDeviceInfo
 */
export const setSelectCamera = async (camera: MediaDeviceInfo) => {
  runtime.selectedCamera = camera
  localStorage.setItem(VIDEO_DEVICE_ID, camera.deviceId)
  const oldTrack = runtime.activeTracks.camera as RTC.RCLocalTrack
  if (oldTrack) {
    await removeTrack([oldTrack], 'camera', oldTrack.isPublished())
  }
  const track = await getTrack('camera')
  setTrack([track], 'camera', runtime.videoStatus === 'liveing')
}

/**
 *
 * 设置当前麦克风设备
 * @param microphone MediaDeviceInfo
 */
export const setSelectMicrophone = async (microphone: MediaDeviceInfo) => {
  runtime.selectedMicrophone = microphone
  localStorage.setItem(AUDIO_DEVICE_ID, microphone.deviceId)
  const oldTrack = runtime.activeTracks.microphone as RTC.RCLocalTrack
  if (oldTrack) {
    await removeTrack([oldTrack], 'microphone', oldTrack.isPublished())
  }
  const track = await getTrack('microphone')
  setTrack([track], 'microphone', runtime.videoStatus === 'liveing')
}

type TrackResult = {
  code: RTC.RCRTCCode,
  track: RTC.RCMicphoneAudioTrack | RTC.RCCameraVideoTrack | RTC.RCScreenVideoTrack | undefined
}

export const getTrack = async (trackType: TrackType): Promise<RTC.RCLocalTrack> => {
  let res: TrackResult | undefined
  let Track: RTC.RCLocalTrack | null = null
  if (trackType === 'microphone') {
    res = await runtime.rtcClient?.createMicrophoneAudioTrack('RongCloudRTC', {
      micphoneId: runtime.selectedMicrophone?.deviceId,
    }) as TrackResult
  } else if (trackType === 'camera') {
    res = await runtime.rtcClient?.createCameraVideoTrack('RongCloudRTC', {
      cameraId: runtime.selectedCamera?.deviceId,
      faceMode: 'user',
      frameRate: RTC.RCFrameRate.FPS_24,
      resolution: RTC.RCResolution.W1920_H1080,
    }) as TrackResult
  } else {
    res = await runtime?.rtcClient?.createScreenVideoTrack() as TrackResult
  }

  Track = res?.track as RTC.RCLocalTrack
  if (trackType === 'camera' && !runtime.cameras.length) {
    runtime.deviceStatus[trackType] = 'none'
  } else if (trackType === 'microphone' && !runtime.microphones.length) {
    runtime.deviceStatus[trackType] = 'none'
  } else if (trackType === 'screen' && !runtime.screenShareStatus) {
    runtime.deviceStatus[trackType] = 'none'
  }
  if (res.code === RTC.RCRTCCode.PERMISSION_DENIED) {
    runtime.deviceStatus[trackType] = 'denied'
  } else {
    runtime.deviceStatus[trackType] = 'granted'
  }
  // if (res.code !== RTC.RCRTCCode.SUCCESS || !Track) {
  //   throw new Error('获取数据流失败')
  // }
  return Track
}

/**
 * 添加视频流，会同步修改当先视频与推送的流
 * @param track
 */
export const setTrack = async (tracks: RTC.RCLocalTrack[], trackType: TrackType, needPublish = true) => {
  for (const track of tracks) {
    // @ts-ignore
    // await runtime.mediaStreams?.addTrack(track._msTrack)
    if (trackType === 'microphone') {
      console.log('添加麦克风')
      track.play()
    }
    runtime.activeTracks[trackType] = track
  }
  if (needPublish) {
    // console.log('publish', runtime.joinedRoom)
    await runtime.joinedRoom?.publish(tracks)
  }
}
/**
 * 删除视频流，会同步修改当先视频与推送的流
 * @param track
 */
export const removeTrack = async (tracks: RTC.RCLocalTrack[], trackType: TrackType, needPublish = true) => {
  if (needPublish) {
    await runtime.joinedRoom?.unpublish(tracks)
  }
  for (const track of tracks) {
    // @ts-ignore
    // await runtime.mediaStreams?.removeTrack(track._msTrack)
    // runtime.activeTracks[trackType].destroy()
    // console.log(runtime.activeTracks[trackType])
    track?.destroy()
    runtime.activeTracks[trackType] = null
  }
}

export const joinIMRoom = async (roomId: string, type: RTC.RCLivingType, listenEvents: RTC.IRoomEventListener | null) => {
  await RongIMLib.joinChatRoom(roomId, {count: -1})
  const join = await runtime.rtcClient?.joinLivingRoom(roomId, type)
  if (join?.code != RTC.RCRTCCode.SUCCESS) throw Error('加入房间失败')
  join.room?.registerRoomEventListener(listenEvents)
  return join
}

export const joinRoom = async (roomId: string, type: RTC.RCLivingType, listenEvents: RTC.IRoomEventListener | null) => {
  try {
    await request.get('/api-web/imLiveBroadcastRoom/joinRoom', {
      params: {
        roomUid: runtime.roomUid,
        userId: state.user?.speakerId,
      }
    })
  } catch (error) {}
  return await joinIMRoom(roomId, type, listenEvents)
}

/**
 * 开始直播
 */

export const startLive = async (resetTime = true) => {
  if (runtime.videoStatus !== 'stream') throw Error('当前无视频流')
  const room = runtime.joinedRoom
  if (room) {
    // const microphoneAudioTrack = await getTrack('microphone')
    // const cameraVideoTrack = await getTrack('camera')
    // await setTrack([cameraVideoTrack], 'camera')
    // await setTrack([microphoneAudioTrack], 'microphone')
    // const builder = await runtime.joinedRoom?.getMCUConfigBuilder()
    // // @ts-ignore
    // await builder.setOutputVideoRenderMode?.(RTC.MixVideoRenderMode.WHOLE)
    // // @ts-ignore
    // await builder.flush()
    runtime.videoStatus = 'liveing'
  }
  if (resetTime) {
    sessionStorage.setItem(START_LIVE_TIME, dayjs().valueOf().toString())
  }
  sessionStorage.setItem(START_LIVE_STATUS, 'liveing')
}

/**
 * 关闭直播
 */
export const closeLive = async () => {
  // removeMedia(runtime.mediaStreams, runtime.mediaStreamTrack)
  // await request.post('/api-im/user/statusImUser', {
  //   data: {
  //     os: 'PC',
  //     status: 3,
  //     userId: state.user?.id,
  //   }
  // })
  sessionStorage.removeItem(START_LIVE_TIME)
  sessionStorage.removeItem(START_LIVE_STATUS)
  runtime.videoStatus = 'stream'
  for (const key in runtime.activeTracks) {
    if (Object.prototype.hasOwnProperty.call(runtime.activeTracks, key)) {
      const track = runtime.activeTracks[key as TrackType] as RTC.RCLocalTrack
      if (track) {
        removeTrack([track], key as TrackType)
      }
    }
  }
}

/**
 * 同步点赞数量
 */
export const loopSyncLike = async () => {
  if ((runtime.likeCount !== runtime.lastLikeCount || runtime.likeCount === 0) && state.user) {
    try {
      await request.get('/api-web/imLiveBroadcastRoom/syncLike', {
        hideLoading: true,
        hideMessage: true,
        params: {
          likeNum: runtime.likeCount,
          roomUid: runtime.roomUid,
        }
      })
      runtime.lastLikeCount = runtime.likeCount
    } catch (error) {}
  }
  setTimeout(() => {
    loopSyncLike()
  }, 1000 * 60)
}

type SendMessageType = 'text' | 'image' | 'audio' | 'video' | 'file' | 'SeatsCtrl' | 'ChatBan' | 'SeatApply' | 'SeatResponse'

export const getSendMessageUser = () => {
  return {
    id: state.user?.speakerId,
    name: state.user?.speakerName,
    userId: state.user?.speakerId,
    userName: state.user?.speakerName,
  }
}

/**
 *
 * @param msg 消息内容
 * @param type 消息类型
 * @returns null 或者 发送消息的结果
 */
export const sendMessage = async (msg: any, type: SendMessageType = 'text') => {
  let message: RongIMLib.BaseMessage<unknown> | null = null
  if (!msg) return
  const conversation = {
    conversationType: RongIMLib.ConversationType.CHATROOM,
    targetId: runtime.joinedRoom?._roomId as string,
  }
  if (type === 'text') {
    message = new RongIMLib.TextMessage({
      user: getSendMessageUser(),
      content: msg
    })
  } else if (type === 'SeatsCtrl') {
    message = new MessageSeatsCtrl(msg)
  } else if (type === 'ChatBan') {
    message = new MessageChatBan(msg)
  } else if (type === 'SeatApply') {
    message = new MessageSeatApply(msg)
  } else if (type === 'SeatResponse') {
    message = new MessageSeatResponse(msg)
  }
  if (!message) return
  console.log(message)
  return await RongIMLib.sendMessage(conversation, message)
}

export const openDevice = async (trackType: TrackType, needPublish = true) => {
  if (trackType === 'microphone' && runtime.activeTracks[trackType]) {
    runtime.activeTracks[trackType]?.unmute()
  } else {
    const track = await getTrack(trackType)
    await setTrack([track], trackType, needPublish)
    if (runtime.videoRef) {
      track.play(runtime.videoRef)
    }
  }
}

export const closeDevice = async (trackType: TrackType, needPublish = true) => {
  const track = runtime.activeTracks[trackType]
  if (trackType !== 'microphone') {
    // console.log('closeDevice', track)
    // track?.destroy()
    await removeTrack([track] as RTC.RCLocalTrack[], trackType, needPublish)
  } else {
    track?.mute()
  }
}

export const toggleDevice = async (trackType: TrackType) => {
  const track = runtime.activeTracks[trackType]
  const needPublish = runtime.videoStatus === 'liveing'
  if (track) {
    if (trackType === 'camera') {
      runtime.deviceStatus.camera = 'closed'
    }
    closeDevice(trackType, needPublish)
  } else {
    if (trackType === 'camera') {
      runtime.deviceStatus.camera = 'granted'
    }
    openDevice(trackType, needPublish)
  }
}

export const leaveIMRoom = async () => {
  await closeLive()
  if (runtime.joinedRoom) {
    // @ts-ignore
    await runtime.rtcClient?.leaveRoom(runtime.joinedRoom)
    runtime.joinedRoom = null
  }
}