feat: add extensive test suite

app/(ui)/admin/cdn/api.ts

@@ -1,39 +1,23 @@
 "use server";
 
 import { eq } from "drizzle-orm";
+import type { PgDatabase } from "drizzle-orm/pg-core";
 import { revalidatePath } from "next/cache";
 import { actionLog, cdnify } from "@/lib/api";
 import { adminCheck } from "@/lib/auth";
 import { db } from "@/lib/db";
 import { cdn } from "@/lib/db/schema";
+import { fetchToCdnService } from "./service";
 
 export async function fetchToCdn(urls: string[]) {
-  if (!(await adminCheck())) throw "Unauthorized";
-
-  async function toFile(res: Response) {
-    if (!res.ok) throw "File failed to download";
-    return new File(
-      [await res.blob()],
-      res.headers
-        .get("Content-Disposition")
-        ?.match(/^attachment;.*filename="([a-zA-Z0-9-_ .]+)"/)?.[1] ||
-        decodeURIComponent(new URL(res.url).pathname).match(
-          /\/([a-zA-Z0-9-_ .]+)$/,
-        )?.[1] ||
-        `file.${res.headers.get("Content-Type")?.split("/")[1] || "dat"}`,
-    );
-  }
-  return db
-    .transaction(async (tx) =>
-      Promise.all(
-        urls.map((url) =>
-          fetch(url, { redirect: "follow" })
-            .then(toFile)
-            .then((f) => cdnify(f, { tx })),
-        ),
-      ),
-    )
-    .finally(() => revalidatePath("/admin/cdn"));
+  // biome-ignore lint/suspicious/noExplicitAny: Drizzle transaction type parameters
+  return fetchToCdnService<PgDatabase<any, any, any>, string>(urls, {
+    adminCheck,
+    fetch: (url) => fetch(url, { redirect: "follow" }),
+    transaction: (callback) => db.transaction(callback),
+    importFile: (file, tx) => cdnify(file, { tx }),
+    afterImport: () => revalidatePath("/admin/cdn"),
+  });
 }
 
 export async function rename(id: string, name: string) {