refactor: download service (#16600)

server/src/repositories/download.repository.ts

@@ -0,0 +1,36 @@
+import { Injectable } from '@nestjs/common';
+import { Kysely } from 'kysely';
+import { InjectKysely } from 'nestjs-kysely';
+import { DB } from 'src/db';
+import { anyUuid } from 'src/utils/database';
+
+const builder = (db: Kysely<DB>) =>
+  db
+    .selectFrom('assets')
+    .innerJoin('exif', 'assetId', 'id')
+    .select(['assets.id', 'assets.livePhotoVideoId', 'exif.fileSizeInByte as size'])
+    .where('assets.deletedAt', 'is', null);
+
+@Injectable()
+export class DownloadRepository {
+  constructor(@InjectKysely() private db: Kysely<DB>) {}
+
+  downloadAssetIds(ids: string[]) {
+    return builder(this.db).where('assets.id', '=', anyUuid(ids)).stream();
+  }
+
+  downloadMotionAssetIds(ids: string[]) {
+    return builder(this.db).select(['assets.originalPath']).where('assets.id', '=', anyUuid(ids)).stream();
+  }
+
+  downloadAlbumId(albumId: string) {
+    return builder(this.db)
+      .innerJoin('albums_assets_assets', 'assets.id', 'albums_assets_assets.assetsId')
+      .where('albums_assets_assets.albumsId', '=', albumId)
+      .stream();
+  }
+
+  downloadUserId(userId: string) {
+    return builder(this.db).where('assets.ownerId', '=', userId).where('assets.isVisible', '=', true).stream();
+  }
+}