更新：课程视频播放改成原生video组件

components/video-player/composables/useVideoPlayer.ts

@@ -0,0 +1,189 @@
+// components/video-player/composables/useVideoPlayer.ts
+import { ref, computed } from 'vue'
+import { useVideoAPI } from './useVideoAPI'
+import { useVideoProgress } from './useVideoProgress'
+import type { IVideoInfo, IVideoPlayerProps, VideoErrorType } from '@/types/video'
+
+/**
+ * 视频播放器核心逻辑
+ */
+export function useVideoPlayer(props: IVideoPlayerProps) {
+  const videoAPI = useVideoAPI()
+  const videoProgress = useVideoProgress()
+
+  // 状态
+  const currentVideoData = ref<IVideoInfo | null>(null)
+  const currentIndex = ref(props.currentIndex)
+  const isSetFirstTime = ref(false)
+  const isChanging = ref(false)
+  const showError = ref(false)
+  const errorMessage = ref('')
+  const canRetry = ref(false)
+  const platform = ref('')
+
+  // 获取平台信息
+  // #ifdef APP-PLUS
+  platform.value = uni.getSystemInfoSync().platform
+  // #endif
+
+  // #ifdef H5
+  platform.value = 'h5'
+  // #endif
+
+  /**
+   * 计算视频 URL
+   */
+  const videoUrl = computed(() => {
+    if (!currentVideoData.value) return ''
+
+    if (currentVideoData.value.type === 0) {
+      // MP4 视频
+      return currentVideoData.value.mp4Url || currentVideoData.value.videoUrl || ''
+    } else {
+      // M3U8 视频
+      return currentVideoData.value.m3u8Url || ''
+    }
+  })
+
+  /**
+   * 计算封面图 URL
+   */
+  const posterUrl = computed(() => {
+    if (!currentVideoData.value) return ''
+
+    // 如果是 MP4 视频，可以使用 OSS 视频截图功能
+    if (currentVideoData.value.type === 0 && currentVideoData.value.mp4Url) {
+      return `${currentVideoData.value.mp4Url}?x-oss-process=video/snapshot,t_1,f_jpg`
+    }
+
+    return ''
+  })
+
+  /**
+   * 检查视频是否可以播放
+   */
+  const canPlayVideo = (videoInfo: IVideoInfo): boolean => {
+    // iOS 平台检查
+    if (platform.value === 'ios') {
+      if (videoInfo.type === 1 && !videoInfo.m3u8Url) {
+        return false
+      }
+    }
+
+    return true
+  }
+
+  /**
+   * 加载视频
+   */
+  const loadVideo = async (index: number) => {
+    if (index < 0 || index >= props.videoList.length) {
+      showError.value = true
+      errorMessage.value = '视频索引超出范围'
+      canRetry.value = false
+      return
+    }
+
+    const videoItem = props.videoList[index]
+    currentIndex.value = index
+
+    // 重置状态
+    isSetFirstTime.value = false
+    showError.value = false
+    errorMessage.value = ''
+    canRetry.value = false
+
+    // 调用 API 获取视频信息
+    const videoInfo = await videoAPI.fetchVideoInfo({
+      id: videoItem.id
+    })
+
+    if (!videoInfo) {
+      showError.value = true
+      errorMessage.value = videoAPI.error.value?.message || '获取视频信息失败'
+      canRetry.value = true
+      return
+    }
+
+    // 检查视频类型和 URL
+    if (videoInfo.type === 1 && !videoInfo.m3u8Url) {
+      // M3U8 视频但没有 URL，报告错误
+      await videoAPI.reportErrorVideo({
+        chapterId: videoInfo.chapterId,
+        videoId: videoInfo.id,
+        sort: videoInfo.sort
+      })
+
+      showError.value = true
+      errorMessage.value = '抱歉，本视频加密信息错误，已经提交错误信息，请过一段时间再来观看或联系客服'
+      canRetry.value = false
+      return
+    }
+
+    // 设置当前视频数据
+    currentVideoData.value = videoInfo
+
+    // 获取初始播放位置
+    const initialPosition = videoProgress.getInitialPosition(videoInfo)
+    videoProgress.updateCurrentTime(initialPosition)
+
+    return videoInfo
+  }
+
+  /**
+   * 切换视频
+   */
+  const changeVideo = async (newIndex: number) => {
+    if (isChanging.value) return
+
+    isChanging.value = true
+
+    try {
+      // 保存当前视频进度
+      if (currentVideoData.value) {
+        await videoProgress.saveNow(currentVideoData.value)
+      }
+
+      // 停止进度保存
+      videoProgress.stopSaving()
+
+      // 加载新视频
+      await loadVideo(newIndex)
+    } finally {
+      isChanging.value = false
+    }
+  }
+
+  /**
+   * 重试加载视频
+   */
+  const retry = () => {
+    loadVideo(currentIndex.value)
+  }
+
+  return {
+    // 状态
+    currentVideoData,
+    currentIndex,
+    isSetFirstTime,
+    isChanging,
+    showError,
+    errorMessage,
+    canRetry,
+    platform,
+    isLoading: videoAPI.isLoading,
+
+    // 计算属性
+    videoUrl,
+    posterUrl,
+
+    // 方法
+    loadVideo,
+    changeVideo,
+    retry,
+    canPlayVideo,
+
+    // 进度管理
+    videoProgress
+  }
+}