heic 파일에 대한 썸네일 지원 추가 및 카테고리 페이지에서도 파일의 썸네일이 표시되도록 개선

src/lib/services/file.ts

@@ -0,0 +1,21 @@
+import { callGetApi } from "$lib/hooks";
+import { decryptData } from "$lib/modules/crypto";
+import { storeFileThumbnail } from "$lib/modules/file";
+import { getThumbnailUrl } from "$lib/modules/thumbnail";
+import type { FileThumbnailInfoResponse } from "$lib/server/schemas";
+
+export const requestFileThumbnailDownload = async (fileId: number, dataKey: CryptoKey) => {
+  let res = await callGetApi(`/api/file/${fileId}/thumbnail`);
+  if (!res.ok) return null;
+
+  const { contentIv: thumbnailEncryptedIv }: FileThumbnailInfoResponse = await res.json();
+
+  res = await callGetApi(`/api/file/${fileId}/thumbnail/download`);
+  if (!res.ok) return null;
+
+  const thumbnailEncrypted = await res.arrayBuffer();
+  const thumbnail = await decryptData(thumbnailEncrypted, thumbnailEncryptedIv, dataKey);
+
+  storeFileThumbnail(fileId, thumbnail); // Intended
+  return getThumbnailUrl(thumbnail);
+};