import { currentSlideshow, staleAlbums } from "../../../_lib/photos";

export const dynamic = "force-dynamic";

/** 503 when any enabled album has not synced successfully for 48 hours. Probed by Prometheus. */
export async function GET() {
  const stale = await staleAlbums();
  const { photos } = await currentSlideshow();
  return Response.json(
    { status: stale.length ? "stale" : "ok", photos: photos.length, staleAlbums: stale.map(({ title, lastSuccessAt, lastError }) => ({ title, lastSuccessAt, lastError })) },
    { status: stale.length ? 503 : 200, headers: { "Cache-Control": "no-store" } },
  );
}