const jwt = require('jsonwebtoken');
const { jwt_secret } = require('../config/config');

module.exports = {
	authenticate,
	generateToken,
};

function generateToken(user) {
	const payload = {
		username: user.username,
		email: user.email
	};

	const options = {
		expiresIn: '30d',
	};

	return jwt.sign(payload, jwt_secret, options);
}

function authenticate(req, res, next) {
	const token = req.get('Authorization');

	if (token) {
		jwt.verify(token, jwt_secret, (err, decoded) => {
			if (err) return res.status(401).json(err);
			req.decoded = decoded;
			next();
		});
	} else {
		return res.status(401).json({
			error: 'No token provided, must be set on the Authorization Header',
		});
	}
}