import { ref, onMounted, watch } from 'vue'
import { postMessage } from '../utils/iframePip.js'
import Player, { Events } from 'xgplayer'
import 'xgplayer/dist/index.min.css'
// xgplay相关的
const useInitPlayer = (props, emits) => {
  const xgplayer = ref(null)
  // 是否全屏
  const isCssFullScreenRef = ref(false)
  // 是否展示问题
  const questionShowRef = ref(false)
  // 视频历史记录
  const historyListRef = ref([])

  // 是否是移动端设备
  const isMobileDevice = () => {
    return /Android|webOS|iPhone|iPad|iPod|BlackBerry|IEMobile|Opera Mini/i.test(
      navigator.userAgent
    )
  }
  // 是否是手机
  const isMobile = isMobileDevice()
  // 获取全屏设置
  const getFullscreen = () => {
    const defaultConfig = {
      needBackIcon: true
    }
    return isMobile
      ? {
          rotateFullscreen: true,
          ...defaultConfig
        }
      : {
          useCssFullscreen: true,
          ...defaultConfig
        }
  }

  // 播放器容器对外发送信息
  const viewerPostMessage = (data) => {
    props.ifSendMsg && postMessage(data)
  }

  // 初始化播放器
  const initPlay = () => {
    historyListRef.value = []

    return new Player({
      id: 'mse',
      lang: 'zh',
      url: props.videoUrl,
      height: props.height,
      width: props.width,
      // 自动播放
      autoplay: props.autoplay,
      // 静音播放
      autoplayMuted: props.autoplayMuted,
      // 封面图片
      poster: props.poster,
      // 全屏插件配置
      fullscreen: getFullscreen(),
      // 需要忽略的插件
      ignores: ['cssfullscreen']
    })
  }
  const playNext = (url, poster) => {
    // 关闭问题
    questionShowRef.value = false
    // 播放下一个视频
    xgplayer.value.playNext({
      url: url
    })
    // 设置封面，playNext里面设置有点问题，时常不生效
    xgplayer.value.setConfig({
      poster: poster
    })
  }
  // 初始化事件
  const initHandler = (xgplayer) => {
    if (!xgplayer) return
    // 全屏变化
    xgplayer.on(Events.FULLSCREEN_CHANGE, (isFullScreen) => {
      isCssFullScreenRef.value = isFullScreen
      emits('onFullscreenChange', isFullScreen)
    })
    // 视频播放结束
    xgplayer.on(Events.ENDED, () => {
      questionShowRef.value = true
    })
    // 视频开始播放
    xgplayer.on(Events.PLAY, () => {
      questionShowRef.value = false
    })
    // 视频资源加载成功
    xgplayer.on(Events.LOADED_DATA, () => {
      console.log('视频资源加载成功')
      // 表示视频切换后加载成功
      if (historyListRef.value.length > 0) {
        xgplayer.currentTime = 0
        setTimeout(() => {
          xgplayer
            .play()
            .then(() => {
              // 播放成功
              console.log('播放成功')
            })
            .catch((err) => {
              console.log('播放失败', err)
              // 播放失败，一般发生于未经用户交互时的自动播放
            })
        }, 50)
      }
      historyListRef.value.push(props.videoUrl)
    })
  }
  const init = () => {
    if (!props.videoUrl) return
    console.log('开始初始化视频播放器')
    try {
      xgplayer.value = initPlay()
      initHandler(xgplayer.value)
      viewerPostMessage({
        msgType: 'video_init',
        content: '视频播放器初始化成功'
      })
    } catch (error) {
      viewerPostMessage({
        msgType: 'video_init_fail',
        content: '视频播放器初始失败'
      })
    }
  }

  watch(
    () => props.videoUrl,
    (val, oldVal) => {
      // 首次加载视频进行初始化
      if (val && !oldVal) init()
    }
  )

  onMounted(() => {
    init()
    setTimeout(() => {
      viewerPostMessage({
        msgType: 'video_ready',
        content: '视频容器准备就绪'
      })
    }, 250)
  })

  return {
    xgplayer,
    isMobile,
    isCssFullScreenRef,
    questionShowRef,
    playNext
  }
}

export default useInitPlayer