const express = require('express');
const router = express.Router();
const bcrypt = require('bcryptjs');
const { v4: uuidv4 } = require('uuid');

const { authenticate } = require('../../middlewares/authenticate');
const { validateMeetingID } = require('../../middlewares/validateMeetingID');
const Meeting = require('../models/meetingModel');

router.post('/', authenticate, async (req, res) => {
	id = uuidv4();
	data = { id, ...req.body };

	if (data.password) {
		const hash = bcrypt.hashSync(data.password, 14);
		data.password = hash;
	}

	try {
		const [meeting] = await Meeting.addMeeting(data);
		res.status(201).json(meeting);
	} catch (error) {
		res.status(500).json({ message: 'Failed to add new meeting.', error });
	}
});

router.put('/:id', authenticate, validateMeetingID, async (req, res) => {
	const data = { ...req.body };
	const id = req.params.id;

	if (data.password) {
		const hash = bcrypt.hashSync(data.password, 14);
		data.password = hash;
	}

	try {
		const meeting = await Meeting.updateMeeting(data, id);
		res.status(200).json(meeting);
	} catch (error) {
		res.status(500).json({
			message: `Failed to update meeting with id ${id}.`,
			error,
		});
	}
});

router.delete('/:id', authenticate, validateMeetingID, async (req, res) => {
	const id = req.params.id;

	try {
		const meeting = await Meeting.deleteMeeting(id);
		res.status(200).json({
			message: `Meeting with id ${id} successfully deleted.`,
		});
	} catch (error) {
		res.status(500).json({
			message: `Failed to delete meeting with id ${id}.`,
			error,
		});
	}
});

router.get('/:id', authenticate, async (req, res) => {
	const id = req.params.id;

	try {
		const meeting = await Meeting.getMeetingById(id);
		if (typeof meeting == 'undefined') {
			res.status(404).json({
				message: `Meeting with id ${id} could not be found.`,
			});
		} else {
			res.status(200).json(meeting);
		}
	} catch (error) {
		res.status(500).json({
			message: `Failed to fetch meeting with id ${id}`,
			error,
		});
	}
});

router.get(
	'/:id/participants',
	authenticate,
	validateMeetingID,
	async (req, res) => {
		const id = req.params.id;

		try {
			const participants = await Meeting.getParticipantsByMeetingId(id);
			if (participants.length == 0) {
				res.status(200).json({
					message: `There are no participants for meeting with id ${id}.`,
				});
			} else {
				res.status(200).json(participants);
			}
		} catch (error) {
			res.status(500).json({
				message: `Failed to fetch participants for meeting with id ${id}.`,
				error,
			});
		}
	},
);

router.get(
	'/:id/possible-dates',
	authenticate,
	validateMeetingID,
	async (req, res) => {
		const id = req.params.id;

		try {
			const possibleDates = await Meeting.getPossibleDatesByMeetingId(id);
			if (possibleDates.length == 0) {
				res.status(200).json({
					message: `There are no possibles dates for meeting with id ${id}.`,
				});
			} else {
				res.status(200).json(possibleDates);
			}
		} catch (error) {
			res.status(500).json({
				message: `Failed to fetch possible dates for meeting with id ${id}`,
				error,
			});
		}
	},
);

router.get(
	'/:id/availability',
	authenticate,
	validateMeetingID,
	async (req, res) => {
		const id = req.params.id;

		try {
			const availability = await Meeting.getAvailabilityByMeetingId(id);
			if (availability.length == 0) {
				res.status(200).json({
					message: `There are no possibles dates for meeting with id ${id}.`,
				});
			} else {
				res.status(200).json(availability);
			}
		} catch (error) {
			res.status(500).json({
				message: `Failed to fetch availability for meeting with id ${id}`,
				error,
			});
		}
	},
);

module.exports = router;