1 files changed, 42 insertions, 0 deletions

diff --git a/server/lib/files-cache/videos-preview-cache.ts b/server/lib/files-cache/videos-preview-cache.ts
new file mode 100644
index 000000000..01cd3647e
--- /dev/null
+++ b/server/lib/files-cache/videos-preview-cache.ts
@@ -0,0 +1,42 @@
+import { join } from 'path'
+import { FILES_CACHE, CONFIG, STATIC_PATHS } from '../../initializers'
+import { VideoModel } from '../../models/video/video'
+import { AbstractVideoStaticFileCache } from './abstract-video-static-file-cache'
+
+class VideosPreviewCache extends AbstractVideoStaticFileCache <string> {
+
+  private static instance: VideosPreviewCache
+
+  private constructor () {
+    super()
+  }
+
+  static get Instance () {
+    return this.instance || (this.instance = new this())
+  }
+
+  async getFilePath (videoUUID: string) {
+    const video = await VideoModel.loadByUUIDWithFile(videoUUID)
+    if (!video) return undefined
+
+    if (video.isOwned()) return join(CONFIG.STORAGE.PREVIEWS_DIR, video.getPreviewName())
+
+    return this.loadFromLRU(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 remoteStaticPath = join(STATIC_PATHS.PREVIEWS, video.getPreviewName())
+    const destPath = join(FILES_CACHE.PREVIEWS.DIRECTORY, video.getPreviewName())
+
+    return this.saveRemoteVideoFileAndReturnPath(video, remoteStaticPath, destPath)
+  }
+}
+
+export {
+  VideosPreviewCache
+}