PeerTube/server/lib/files-cache/videos-preview-cache.ts

47 lines
1.3 KiB
TypeScript

import { join } from 'path'
import { FILES_CACHE } from '../../initializers/constants'
import { VideoModel } from '../../models/video/video'
import { AbstractVideoStaticFileCache } from './abstract-video-static-file-cache'
import { doRequestAndSaveToFile } from '@server/helpers/requests'
class VideosPreviewCache extends AbstractVideoStaticFileCache <string> {
private static instance: VideosPreviewCache
private constructor () {
super()
}
static get Instance () {
return this.instance || (this.instance = new this())
}
async getFilePathImpl (videoUUID: string) {
const video = await VideoModel.loadByUUID(videoUUID)
if (!video) return undefined
if (video.isOwned()) return { isOwned: true, path: video.getPreview().getPath() }
return this.loadRemoteFile(videoUUID)
}
protected async loadRemoteFile (key: string) {
const video = await VideoModel.loadAndPopulateAccountAndServerAndTags(key)
if (!video) return undefined
if (video.isOwned()) throw new Error('Cannot load remote preview of owned video.')
const preview = video.getPreview()
const destPath = join(FILES_CACHE.PREVIEWS.DIRECTORY, preview.filename)
const remoteUrl = preview.getFileUrl(video)
await doRequestAndSaveToFile({ uri: remoteUrl }, destPath)
return { isOwned: false, path: destPath }
}
}
export {
VideosPreviewCache
}