import { json, readJsonBody, requireAdmin } from "../../../../_lib/auth";
import { MAX_PHOTOS_PER_ALBUM, scrapeAlbum } from "../../../../_lib/photos";
import { validAlbumUrl } from "../../../../_lib/store";

export const dynamic = "force-dynamic";

/** Reads a share link without saving it: album title and how many photos/videos it has. */
export async function POST(request: Request) {
  const denied = await requireAdmin(request, { mutating: true });
  if (denied) return denied;
  const body = await readJsonBody<{ shareUrl?: string }>(request);
  const shareUrl = validAlbumUrl(body?.shareUrl);
  if (!shareUrl) return json({ ok: false, error: "Not a Google Photos share link." }, 400);
  try {
    const album = await scrapeAlbum(shareUrl);
    const videos = album.items.filter((item) => item.video).length;
    return json({
      ok: true,
      title: album.title,
      photos: album.items.length - videos,
      videos,
      truncated: album.hasMorePages || album.items.length - videos > MAX_PHOTOS_PER_ALBUM,
    });
  } catch (error) {
    return json({ ok: false, error: error instanceof Error ? error.message : "Could not read the album." });
  }
}