import { error } from "@sveltejs/kit";
import type { RequestHandler } from "./$types";
import { createGame, getMergedStops, parseOptions, sample } from "$lib";

export const GET: RequestHandler = async ({ url, platform, locals }) => {
	const db = platform?.env?.TCL_GUESSR_D1 ?? null;
	if (db === null) error(500, "could not connect to d1");

	const userId = locals.user?.id ?? null;
	const options = parseOptions(url);

	const crossingStops = await getMergedStops(options.stopsType);

	const randomStops = sample(crossingStops, 5);
	if (!randomStops) {
		error(400, "could not select random stop");
	}

	const gameData = await createGame(userId, options.mode, options.stopsType, randomStops, db);

	return Response.json(gameData);
};