119 lines
2.7 KiB
TypeScript
119 lines
2.7 KiB
TypeScript
// utils/videoStorage.ts
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interface VideoPosition {
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id: number
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time: number
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updateTime: string
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[key: string]: any
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}
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/**
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* 视频播放位置本地存储服务
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*/
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class VideoStorageService {
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private readonly STORAGE_KEY = 'videoOssList'
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private readonly MAX_STORAGE_COUNT = 50
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/**
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* 获取视频播放位置
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* @param videoId 视频ID
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* @returns 播放位置（秒）或 null
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*/
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getVideoPosition(videoId: number): number | null {
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const list = this.getVideoList()
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const video = list.find((v) => v.id === videoId)
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return video?.time || null
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}
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/**
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* 保存视频播放位置
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* @param videoId 视频ID
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* @param time 播放位置（秒）
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* @param videoData 视频数据
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*/
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saveVideoPosition(videoId: number, time: number, videoData: any): void {
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const list = this.getVideoList()
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const index = list.findIndex((v) => v.id === videoId)
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const newItem = {
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...videoData,
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id: videoId,
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time,
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updateTime: new Date().toISOString()
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}
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if (index >= 0) {
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list[index] = newItem
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} else {
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list.push(newItem)
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}
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this.setVideoList(list)
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// 自动清理旧数据
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this.cleanOldData()
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}
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/**
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* 清理旧数据（保留最近 50 个）
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*/
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cleanOldData(): void {
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const list = this.getVideoList()
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if (list.length > this.MAX_STORAGE_COUNT) {
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// 按更新时间排序，保留最新的
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const sorted = list.sort((a, b) => {
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const timeA = new Date(b.updateTime || 0).getTime()
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const timeB = new Date(a.updateTime || 0).getTime()
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return timeA - timeB
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})
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this.setVideoList(sorted.slice(0, this.MAX_STORAGE_COUNT))
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}
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}
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/**
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* 清除指定视频的播放位置
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* @param videoId 视频ID
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*/
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clearVideoPosition(videoId: number): void {
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const list = this.getVideoList()
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const filtered = list.filter((v) => v.id !== videoId)
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this.setVideoList(filtered)
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}
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/**
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* 清除所有播放位置
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*/
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clearAll(): void {
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uni.removeStorageSync(this.STORAGE_KEY)
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}
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/**
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* 获取视频列表
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*/
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private getVideoList(): VideoPosition[] {
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try {
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const data = uni.getStorageSync(this.STORAGE_KEY)
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return data ? JSON.parse(data) : []
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} catch (error) {
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console.error('Failed to get video list from storage:', error)
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return []
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}
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}
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/**
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* 设置视频列表
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*/
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private setVideoList(list: VideoPosition[]): void {
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try {
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uni.setStorageSync(this.STORAGE_KEY, JSON.stringify(list))
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} catch (error) {
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console.error('Failed to set video list to storage:', error)
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}
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}
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}
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// 导出单例
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export const videoStorage = new VideoStorageService()
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