// pages/training/videoDetail/videoDetail.js
import http from '../../../utils/api'
const baseUrl = require('../../../utils/baseUrl')

Page({
  data: {
    baseUrl: baseUrl,
    video: {},
    videoUrl: '',
    loading: true,
    fullScreen: false,
    isPlaying: false,
    isMuted: false,
    loop: false,
    playbackRate: 1,
    currentTime: 0,
    duration: 0,
    videoTags: [],
    videoError: false,
    autoplay: false,
    controlsVisible: true,
    controlsTimer: null,
    lastTouchTime: 0,
  },

  onLoad(options) {
    console.log('页面参数:', options)
    this.getVideoDetails(options.id)
  },

  onReady() {
    this.videoContext = wx.createVideoContext('videoPlayer', this)
    console.log('视频上下文创建成功')
  },

  onUnload() {
    // 清除定时器
    if (this.data.controlsTimer) {
      clearTimeout(this.data.controlsTimer)
    }
    // 页面卸载时停止播放
    if (this.videoContext) {
      this.videoContext.pause()
    }
  },

  // 获取视频详情
  getVideoDetails(id) {
    this.setData({ 
      loading: true, 
      videoError: false 
    })
    
    http.videoDetails({
      data: { id },
      success: res => {
        console.log('视频详情响应:', res)
        if (res.code === 200 && res.data) {
          const video = res.data
          console.log('视频数据:', video)
          
          // 处理视频URL
          let videoUrl = ''
          if (video.videoUrl) {
            videoUrl = this.data.baseUrl + video.videoUrl
            console.log('视频完整URL:', videoUrl)
          }
          
          // 处理视频标签
          const tags = video.tags ? video.tags.split(',').filter(tag => tag.trim()) : []
          
          this.setData({
            video: video,
            videoUrl: videoUrl,
            videoTags: tags,
            loading: false
          })
          
          // 设置页面标题
          wx.setNavigationBarTitle({
            title: video.title.substring(0, 12) + (video.title.length > 12 ? '...' : '')
          })
          
        } else {
          wx.showToast({
            title: res.msg || '视频不存在',
            icon: 'none',
            duration: 2000
          })
          setTimeout(() => {
            wx.navigateBack()
          }, 2000)
        }
      },
      fail: err => {
        console.error('获取视频详情失败:', err)
        this.setData({ 
          loading: false, 
          videoError: true 
        })
        wx.showToast({
          title: '加载失败，请重试',
          icon: 'none',
          duration: 2000
        })
      }
    })
  },

  // 返回上一页
  goBack() {
    wx.navigateBack()
  },

  // 视频加载完成
  onVideoLoaded(e) {
    console.log('视频元数据加载完成:', e.detail)
    this.setData({
      duration: e.detail.duration || 0,
      videoError: false
    })
  },

  // 视频播放错误
  onVideoError(e) {
    console.error('视频播放错误详情:', e.detail)
    this.setData({ 
      videoError: true,
      isPlaying: false 
    })
    
    wx.showModal({
      title: '播放错误',
      content: '视频加载失败，请检查网络或视频链接',
      showCancel: true,
      confirmText: '重试',
      success: (res) => {
        if (res.confirm) {
          this.retryVideo()
        }
      }
    })
  },

  // 视频播放事件
  onVideoPlay(e) {
    console.log('视频开始播放')
    this.setData({
      isPlaying: true,
      videoError: false
    })
    
    // 播放时隐藏控制栏
    if (this.data.fullScreen) {
      this.hideControls()
    }
  },

  // 视频暂停事件
  onVideoPause(e) {
    console.log('视频暂停')
    this.setData({
      isPlaying: false
    })
    
    // 暂停时显示控制栏
    if (this.data.fullScreen) {
      this.showControls()
    }
  },

  // 视频播放结束
  onVideoEnded(e) {
    console.log('视频播放结束')
    this.setData({
      isPlaying: false,
      currentTime: 0
    })
    
    // 结束播放时显示控制栏
    if (this.data.fullScreen) {
      this.showControls()
    }
  },

  // 时间更新事件
  onTimeUpdate(e) {
    const currentTime = e.detail.currentTime
    const duration = e.detail.duration
    
    // 更新当前时间和总时长
    this.setData({
      currentTime: currentTime,
      duration: duration > 0 ? duration : this.data.duration
    })
  },

  // 全屏切换事件
  onFullScreenChange(e) {
    const fullScreen = e.detail.fullScreen
    console.log('全屏状态变化:', fullScreen)
    
    this.setData({
      fullScreen: fullScreen,
      controlsVisible: !fullScreen
    })
    
    if (fullScreen) {
      wx.setKeepScreenOn({ keepScreenOn: true })
      // 进入全屏后自动播放
      setTimeout(() => {
        this.videoContext.play()
      }, 300)
    } else {
      wx.setKeepScreenOn({ keepScreenOn: false })
      // 退出全屏时暂停
      this.videoContext.pause()
    }
  },

  // 进入全屏
  enterFullScreen() {
    this.videoContext.requestFullScreen({ direction: 90 })
  },

  // 退出全屏
  exitFullScreen() {
    this.videoContext.exitFullScreen()
  },

  // 切换播放状态
  togglePlay() {
    console.log('切换播放状态，当前状态:', this.data.isPlaying)
    if (this.data.videoError) {
      this.retryVideo()
      return
    }
    
    if (this.data.isPlaying) {
      this.videoContext.pause()
    } else {
      this.videoContext.play()
    }
  },

  // 切换静音
  toggleMute() {
    const isMuted = !this.data.isMuted
    this.setData({ isMuted: isMuted })
    this.videoContext.muted(isMuted)
    
    wx.showToast({
      title: isMuted ? '已静音' : '已取消静音',
      icon: 'none',
      duration: 800
    })
  },

  // 切换循环
  toggleLoop() {
    const loop = !this.data.loop
    this.setData({ loop: loop })
    this.videoContext.loop(loop)
    
    wx.showToast({
      title: loop ? '开启循环播放' : '关闭循环播放',
      icon: 'none',
      duration: 800
    })
  },

  // 切换播放速度
  toggleSpeed() {
    const speeds = [0.5, 0.75, 1, 1.25, 1.5, 2]
    const currentIndex = speeds.indexOf(this.data.playbackRate)
    const nextIndex = (currentIndex + 1) % speeds.length
    const nextSpeed = speeds[nextIndex]
    
    this.setData({ playbackRate: nextSpeed })
    this.videoContext.playbackRate(nextSpeed)
    
    wx.showToast({
      title: `播放速度 ${nextSpeed}x`,
      icon: 'none',
      duration: 800
    })
  },

  // 重试播放
  retryVideo() {
    console.log('重试播放视频')
    this.setData({ 
      videoError: false,
      loading: true 
    })
    
    // 重新加载视频
    setTimeout(() => {
      this.setData({ loading: false })
      if (this.videoContext) {
        this.videoContext.seek(0)
        this.videoContext.play()
      }
    }, 500)
  },

  // 触摸控制
  onTouchControl(e) {
    const type = e.currentTarget.dataset.type
    const currentTime = this.data.currentTime
    const duration = this.data.duration
    
    if (type === 'backward') {
      const newTime = Math.max(0, currentTime - 10)
      this.setData({ currentTime: newTime })
      this.videoContext.seek(newTime)
      
      wx.showToast({
        title: '-10秒',
        icon: 'none',
        duration: 500
      })
    } else if (type === 'forward') {
      const newTime = Math.min(duration, currentTime + 10)
      this.setData({ currentTime: newTime })
      this.videoContext.seek(newTime)
      
      wx.showToast({
        title: '+10秒',
        icon: 'none',
        duration: 500
      })
    }
  },

  // 触摸移动
  onTouchMove() {
    if (this.data.fullScreen) {
      this.showControls()
      this.hideControls()
    }
  },

  // 显示控制栏
  showControls() {
    this.setData({ controlsVisible: true })
    
    // 清除之前的定时器
    if (this.data.controlsTimer) {
      clearTimeout(this.data.controlsTimer)
    }
    
    // 3秒后自动隐藏控制栏
    const timer = setTimeout(() => {
      if (this.data.isPlaying && this.data.fullScreen) {
        this.setData({ controlsVisible: false })
      }
    }, 3000)
    
    this.setData({ controlsTimer: timer })
  },

  // 隐藏控制栏
  hideControls() {
    if (this.data.controlsTimer) {
      clearTimeout(this.data.controlsTimer)
    }
    
    const timer = setTimeout(() => {
      if (this.data.isPlaying && this.data.fullScreen) {
        this.setData({ controlsVisible: false })
      }
    }, 3000)
    
    this.setData({ controlsTimer: timer })
  },




})