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

/**
 * GET /api/ebay?q={query}&minPrice={minPrice}&maxPrice={maxPrice}&strictMode={strictMode}&exclusions={exclusions}&keywords={keywords}&buyItNowOnly={buyItNowOnly}&canadaOnly={canadaOnly}
 * Search eBay for listings (default: Buy It Now only, Canada only)
 */
export async function ebayRoute(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 },
		);

	// Parse optional parameters with defaults
	const minPrice = reqUrl.searchParams.get("minPrice")
		? parseInt(reqUrl.searchParams.get("minPrice")!)
		: undefined;
	const maxPrice = reqUrl.searchParams.get("maxPrice")
		? parseInt(reqUrl.searchParams.get("maxPrice")!)
		: undefined;
	const strictMode = reqUrl.searchParams.get("strictMode") === "true";
	const buyItNowOnly = reqUrl.searchParams.get("buyItNowOnly") !== "false";
	const canadaOnly = reqUrl.searchParams.get("canadaOnly") !== "false";
	const exclusionsParam = reqUrl.searchParams.get("exclusions");
	const exclusions = exclusionsParam ? exclusionsParam.split(",").map(s => s.trim()) : [];
	const keywordsParam = reqUrl.searchParams.get("keywords");
	const keywords = keywordsParam ? keywordsParam.split(",").map(s => s.trim()) : [SEARCH_QUERY];

	try {
		const items = await fetchEbayItems(SEARCH_QUERY, 5, {
			minPrice,
			maxPrice,
			strictMode,
			exclusions,
			keywords,
			buyItNowOnly,
			canadaOnly,
		});
		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("eBay scraping error:", error);
		const errorMessage = error instanceof Error ? error.message : "Unknown error occurred";
		return Response.json(
			{ message: errorMessage },
			{ status: 400 },
		);
	}
}