import * as DataEvent from '../../../src/com/events/DataEvent';
const express = require('express');
const router = express.Router();
const bCrypt = require('bcrypt-nodejs');
const jwt = require('jsonwebtoken');
const fs = require('fs-extra');
const _ = require('lodash');
//const crypto = require('crypto'); // for setting up new accounts

/**
 * Get Auth Status
 */
router.get('/', function(req, res) {
	var token = req.headers['x-access-token'];
	if (!token) return res.status(401).send({ auth: false, message: 'No token provided.' });

	jwt.verify(token, 'super-secret-string', function(err, decoded) {
		if (err)
			return res.status(500).send({ auth: false, message: 'Failed to authenticate token.' });
		res.status(200).send(decoded);
	});
});

/**
 * Get Auth Status
 */
router.get('/status', function(req, res) {
	if (req.session.user) {
		let session = req.session;
		res.json({
			type: DataEvent.API_REQUEST_GOOD,
			message: 'Auth is Good',
			token: session.hashToken
		});
	} else {
		res.json({
			type: DataEvent.API_REQUEST_LAME,
			message: 'NOT AUTHORIZED'
		});
	}
});
/**
 * Login Member and return token
 */
router.post('/login', function(req, res) {
	fs.readJson('site/folks.json').then(folks => {
		let found = _.find(folks, { handle: req.body.handle });
		if (found) {
			if (!isValidPassword(found, req.body.password)) {
				res.json({
					type: DataEvent.REQUEST_LAME,
					message: 'CHECK YOUR PASSWORD'
				});
			}

			let token = jwt.sign({ id: found.id }, found.key, {
				expiresIn: 86400 // expires in 24 hours
			});

			let session = req.session;
			session.user = found;
			session.token = token;
			session.hashToken = hashToken(token);
			res.json({
				type: DataEvent.REQUEST_GOOD,
				message: 'Welcome Back',
				token: session.hashToken
			});
		} else {
			res.json({
				type: DataEvent.REQUEST_LAME,
				message: 'Need to see some id, champ.'
			});
		}
	});
});

//router.post('/logout', function(req, res) {});
module.exports = router;

function isValidPassword(user, password) {
	return bCrypt.compareSync(password, user.password);
}

function hashToken(token) {
	return bCrypt.hashSync(token, bCrypt.genSaltSync(10), null);
}