썸네일이 누락된 파일 조회 및 레거시 파일 조회 네트워크 호출 최적화

src/routes/(fullscreen)/settings/migration/service.svelte.ts

@@ -1,11 +1,17 @@
 import { limitFunction } from "p-limit";
 import { SvelteMap } from "svelte/reactivity";
 import { CHUNK_SIZE } from "$lib/constants";
-import type { FileInfo } from "$lib/modules/filesystem";
+import {
+  decryptFileMetadata,
+  getFileInfo,
+  type FileInfo,
+  type MaybeFileInfo,
+} from "$lib/modules/filesystem";
 import { uploadBlob } from "$lib/modules/upload";
 import { requestFileDownload } from "$lib/services/file";
-import { Scheduler } from "$lib/utils";
+import { HybridPromise, Scheduler } from "$lib/utils";
 import { trpc } from "$trpc/client";
+import type { RouterOutputs } from "$trpc/router.server";
 
 export type MigrationStatus =
   | "queued"
@@ -24,6 +30,35 @@ export interface MigrationState {
 const scheduler = new Scheduler();
 const states = new SvelteMap<number, MigrationState>();
 
+export const requestLegacyFiles = async (
+  filesRaw: RouterOutputs["file"]["listLegacy"],
+  masterKey: CryptoKey,
+) => {
+  const files = await HybridPromise.all(
+    filesRaw.map((file) =>
+      HybridPromise.resolve(
+        getFileInfo(file.id, masterKey, {
+          async fetchFromServer(id, cachedInfo, masterKey) {
+            const metadata = await decryptFileMetadata(file, masterKey);
+            return {
+              categories: [],
+              ...cachedInfo,
+              id: id as number,
+              exists: true,
+              isLegacy: file.isLegacy,
+              parentId: file.parent,
+              contentType: file.contentType,
+              ...metadata,
+            };
+          },
+        }),
+      ),
+    ),
+  );
+
+  return files as MaybeFileInfo[];
+};
+
 const createState = (status: MigrationStatus): MigrationState => {
   const state = $state({ status });
   return state;