Basic video redundancy implementation

server/lib/activitypub/cache-file.ts

@@ -0,0 +1,47 @@
+import { CacheFileObject } from '../../../shared/index'
+import { VideoModel } from '../../models/video/video'
+import { ActorModel } from '../../models/activitypub/actor'
+import { sequelizeTypescript } from '../../initializers'
+import { VideoRedundancyModel } from '../../models/redundancy/video-redundancy'
+
+function cacheFileActivityObjectToDBAttributes (cacheFileObject: CacheFileObject, video: VideoModel, byActor: ActorModel) {
+  const url = cacheFileObject.url
+
+  const videoFile = video.VideoFiles.find(f => {
+    return f.resolution === url.height && f.fps === url.fps
+  })
+
+  if (!videoFile) throw new Error(`Cannot find video file ${url.height} ${url.fps} of video ${video.url}`)
+
+  return {
+    expiresOn: new Date(cacheFileObject.expires),
+    url: cacheFileObject.id,
+    fileUrl: cacheFileObject.url.href,
+    strategy: null,
+    videoFileId: videoFile.id,
+    actorId: byActor.id
+  }
+}
+
+function createCacheFile (cacheFileObject: CacheFileObject, video: VideoModel, byActor: ActorModel) {
+  return sequelizeTypescript.transaction(async t => {
+    const attributes = cacheFileActivityObjectToDBAttributes(cacheFileObject, video, byActor)
+
+    return VideoRedundancyModel.create(attributes, { transaction: t })
+  })
+}
+
+function updateCacheFile (cacheFileObject: CacheFileObject, redundancyModel: VideoRedundancyModel, byActor: ActorModel) {
+  const attributes = cacheFileActivityObjectToDBAttributes(cacheFileObject, redundancyModel.VideoFile.Video, byActor)
+
+  redundancyModel.set('expires', attributes.expiresOn)
+  redundancyModel.set('fileUrl', attributes.fileUrl)
+
+  return redundancyModel.save()
+}
+
+export {
+  createCacheFile,
+  updateCacheFile,
+  cacheFileActivityObjectToDBAttributes
+}