// Next.js API route support: https://nextjs.org/docs/api-routes/introduction
import type { NextApiRequest, NextApiResponse } from "next";
import client from "@/lib/mongodb";
import { withIronSessionApiRoute } from "iron-session/next";
import { sessionOptions } from "@/lib/session";
import { Session } from "@/hooks/useSessions";
import moment from "moment";

const db = client.db(process.env.MONGODB_DB);

export default withIronSessionApiRoute(handler, sessionOptions);

async function handler(req: NextApiRequest, res: NextApiResponse) {
	if (req.method === "GET") return get(req, res);
	if (req.method === "POST") return post(req, res);
}

async function get(req: NextApiRequest, res: NextApiResponse) {
	if (!req.session.user) {
		res.status(401).json({ ok: false });
		return;
	}

	const { user } = req.query as { user?: string };

	const q = user ? { user: user } : {};
	const sessions = await db.collection("sessions").find<Session>({
		...q,
	}).limit(12).sort({ date: -1 }).toArray();
	console.log(sessions)

	res.status(200).json(
		sessions.filter((x) => {
			if (!x.assignment) return true;
			if (x.assignment.results.filter((y) => y.user === user).length > 0) return false;
			return !moment().isAfter(moment(x.assignment.endDate));
		}),
	);
}

async function post(req: NextApiRequest, res: NextApiResponse) {
	if (!req.session.user) {
		res.status(401).json({ ok: false });
		return;
	}
	const session = req.body;

	await db.collection("sessions").updateOne({ id: session.id }, { $set: session }, { upsert: true });

	res.status(200).json({ ok: true });
}