import { Router } from 'express';
import { PoolModel } from '../models';
import { ObjectID } from 'mongodb';
import requireApiAuth from '../requireApiAuth';

export const router = Router();

router.post('/:poolID/join', async (req, res) => {
	const userID = req.session.accountID;
	const poolID = req.params.poolID;

	await PoolModel.findByIdAndUpdate(poolID, {
		$addToSet: { participant_ids: userID },
	}).exec();

	res.json({ status: 'success' });
});

router.post('/:poolID/leave', async (req, res) => {
	const userID = req.session.accountID;
	const poolID = req.params.poolID;

	await PoolModel.findByIdAndUpdate(poolID, {
		$pull: { participant_ids: userID },
	}).exec();

	res.json({ status: 'success' });
});

router.get('/:poolID', async (req, res) => {
	const pool = await PoolModel.findById(new ObjectID(req.params.poolID)).exec();

	if (pool) {
		res.json({ status: 'success', data: pool.toJSON() });
	} else {
		res.json({ status: 'error', error: 'not_found' });
	}
});

router.post('/', requireApiAuth, async (req, res) => {
	const userID = req.session.accountID;
	const {
		capacity,
		description,
		direction,
		end_time,
		group_id,
		start_time,
		title,
		type,
	} = req.body;

	const pool = new PoolModel();
	Object.assign(pool, {
		author_id: userID,
		capacity,
		description,
		direction,
		status: 'pending',
		title,
		type,
		participant_ids: [userID],
		comments: [],
		create_time: new Date().toISOString(),
		update_time: new Date().toISOString(),
		group_id,
	});

	pool
		.save()
		.then((pool) => {
			res.json({ status: 'success', id: pool._id });
		})
		.catch((err) => {
			console.error('Error when creating a pool:', err);
			res.json({ status: 'error' });
		});
});