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

/**
 * GET /api/facebook?q={query}&location={location}&cookies={cookies}
 * Search Facebook Marketplace for listings
 */
export async function facebookRoute(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 LOCATION = reqUrl.searchParams.get("location") || "toronto";
	const COOKIES_SOURCE = reqUrl.searchParams.get("cookies") || undefined;

	try {
		const items = await fetchFacebookItems(SEARCH_QUERY, 5, LOCATION, 25, COOKIES_SOURCE);
		if (!items || items.length === 0)
			return Response.json(
				{ message: "Search didn't return any results!" },
				{ status: 404 },
			);
		return Response.json(items, { status: 200 });
	} catch (error) {
		console.error("Facebook scraping error:", error);
		const errorMessage = error instanceof Error ? error.message : "Unknown error occurred";
		return Response.json(
			{ message: errorMessage },
			{ status: 400 },
		);
	}
}