import { fetchKijijiItems } from "@marketplace-scrapers/core";

/**
 * GET /api/kijiji?q={query}
 * Search Kijiji marketplace for listings
 */
export async function kijijiRoute(req: Request): Promise<Response> {
  const reqUrl = new URL(req.url);

  const SEARCH_QUERY =
    req.headers.get("query") || reqUrl.searchParams.get("q") || null;
  if (!SEARCH_QUERY)
    return Response.json(
      {
        message: "Request didn't have 'query' header or 'q' search parameter!",
      },
      { status: 400 },
    );

  const maxPagesParam = reqUrl.searchParams.get("maxPages");
  const maxPages = maxPagesParam ? parseInt(maxPagesParam, 10) : 5;
  const priceMinParam = reqUrl.searchParams.get("priceMin");
  const priceMin = priceMinParam ? parseInt(priceMinParam, 10) : undefined;
  const priceMaxParam = reqUrl.searchParams.get("priceMax");
  const priceMax = priceMaxParam ? parseInt(priceMaxParam, 10) : undefined;

  const searchOptions = {
    location: reqUrl.searchParams.get("location") || undefined,
    category: reqUrl.searchParams.get("category") || undefined,
    keywords: reqUrl.searchParams.get("keywords") || undefined,
    sortBy: reqUrl.searchParams.get("sortBy") as
      | "relevancy"
      | "date"
      | "price"
      | "distance"
      | undefined,
    sortOrder: reqUrl.searchParams.get("sortOrder") as
      | "desc"
      | "asc"
      | undefined,
    maxPages,
    priceMin,
    priceMax,
    cookies: reqUrl.searchParams.get("cookies") || undefined,
  };

  try {
    const items = await fetchKijijiItems(
      SEARCH_QUERY,
      4, // 4 requests per second for faster scraping
      "https://www.kijiji.ca",
      searchOptions,
      {},
    );
    if (!items)
      return Response.json(
        { message: "Search didn't return any results!" },
        { status: 404 },
      );
    return Response.json(items, { status: 200 });
  } catch (error) {
    console.error("Kijiji scraping error:", error);
    const errorMessage =
      error instanceof Error ? error.message : "Unknown error occurred";
    return Response.json({ message: errorMessage }, { status: 400 });
  }
}