132 lines
3.1 KiB
TypeScript
132 lines
3.1 KiB
TypeScript
// components/video-player/composables/useVideoProgress.ts
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import { ref } from 'vue'
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import { videoStorage } from '@/utils/videoStorage'
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import { videoApi } from '@/api/modules/video'
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import type { IVideoInfo } from '@/types/video'
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/**
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* 视频播放进度管理
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*/
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export function useVideoProgress() {
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const currentTime = ref(0)
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const isSaving = ref(false)
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let saveTimer: any = null
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/**
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* 获取初始播放位置
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* 合并本地和服务器的播放位置，取较大值
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* 如果视频已经看完（播放位置 >= 总时长 - 5秒），则从头开始
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*/
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const getInitialPosition = (videoInfo: IVideoInfo): number => {
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// 从服务器获取播放位置
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const serverPosition = videoInfo.userCourseVideoPositionEntity?.position || 0
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// 从本地存储获取播放位置
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const localPosition = videoStorage.getVideoPosition(videoInfo.id) || 0
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// 返回较大的值
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let position = Math.max(serverPosition, localPosition)
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// 如果播放位置接近视频结尾（最后5秒内），则从头开始
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const videoDuration = videoInfo.duration || 0
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if (videoDuration > 0 && position >= videoDuration - 5) {
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position = 0
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console.log('Video already finished, reset to start')
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}
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console.log('Initial position:', {
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server: serverPosition,
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local: localPosition,
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duration: videoDuration,
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final: position
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})
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return position
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}
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/**
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* 开始保存进度
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* 每秒保存到本地
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*/
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const startSaving = (videoInfo: IVideoInfo) => {
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// 清除之前的定时器
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stopSaving()
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// 每秒保存到本地
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saveTimer = setInterval(() => {
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if (currentTime.value > 0) {
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videoStorage.saveVideoPosition(
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videoInfo.id,
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Math.floor(currentTime.value),
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videoInfo
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)
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}
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}, 1000)
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}
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/**
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* 停止保存进度
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*/
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const stopSaving = () => {
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if (saveTimer) {
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clearInterval(saveTimer)
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saveTimer = null
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}
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}
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/**
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* 保存进度到服务器
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*/
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const saveToServer = async (videoId: number, position: number) => {
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if (isSaving.value) return
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try {
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isSaving.value = true
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await videoApi.saveCoursePosition({
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videoId,
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position
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})
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console.log('Progress saved to server:', { videoId, position })
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} catch (error) {
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console.error('Failed to save progress to server:', error)
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} finally {
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isSaving.value = false
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}
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}
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/**
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* 立即保存当前进度
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*/
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const saveNow = async (videoInfo: IVideoInfo) => {
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if (currentTime.value > 0) {
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// 保存到本地
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videoStorage.saveVideoPosition(
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videoInfo.id,
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Math.floor(currentTime.value),
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videoInfo
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)
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// 保存到服务器
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await saveToServer(videoInfo.id, Math.floor(currentTime.value))
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}
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}
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/**
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* 更新当前播放时间
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*/
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const updateCurrentTime = (time: number) => {
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currentTime.value = time
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}
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return {
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currentTime,
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isSaving,
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getInitialPosition,
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startSaving,
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stopSaving,
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saveToServer,
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saveNow,
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updateCurrentTime
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}
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}
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