52 lines
1.6 KiB
TypeScript
52 lines
1.6 KiB
TypeScript
import { join } from 'path'
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import { FILES_CACHE } from '../../initializers/constants'
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import { VideoModel } from '../../models/video/video'
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import { AbstractVideoStaticFileCache } from './abstract-video-static-file-cache'
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import { doRequestAndSaveToFile } from '@server/helpers/requests'
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import { ThumbnailModel } from '@server/models/video/thumbnail'
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import { ThumbnailType } from '@shared/models'
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import { logger } from '@server/helpers/logger'
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class VideosPreviewCache extends AbstractVideoStaticFileCache <string> {
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private static instance: VideosPreviewCache
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private constructor () {
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super()
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}
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static get Instance () {
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return this.instance || (this.instance = new this())
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}
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async getFilePathImpl (filename: string) {
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const thumbnail = await ThumbnailModel.loadWithVideoByFilename(filename, ThumbnailType.PREVIEW)
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if (!thumbnail) return undefined
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if (thumbnail.Video.isOwned()) return { isOwned: true, path: thumbnail.getPath() }
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return this.loadRemoteFile(thumbnail.Video.uuid)
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}
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// Key is the video UUID
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protected async loadRemoteFile (key: string) {
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const video = await VideoModel.loadFull(key)
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if (!video) return undefined
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if (video.isOwned()) throw new Error('Cannot load remote preview of owned video.')
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const preview = video.getPreview()
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const destPath = join(FILES_CACHE.PREVIEWS.DIRECTORY, preview.filename)
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const remoteUrl = preview.getFileUrl(video)
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await doRequestAndSaveToFile(remoteUrl, destPath)
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logger.debug('Fetched remote preview %s to %s.', remoteUrl, destPath)
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return { isOwned: false, path: destPath }
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}
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}
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export {
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VideosPreviewCache
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}
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