authentication.js

// const jwt = require('jwt-simple');
const {User} = require('../models/models');
// const config = require('../config');

// function tokenForUser(user) {
//     console.log(user)
//   const timestamp = new Date().getTime();
//   // sub: subject
//   // iat: issued at time
//   return jwt.encode({ sub: user, iat: timestamp }, config.secret);
// }

// exports.signin = function(req, res, next) {
//   // User has already had their email and password auth'd
//   // We just need to give them a token
//   console.log('signin req', req.body.username)
//   res.json({
//     token: tokenForUser(req.body.username),
//     user: req.body
//   });
//   next();
// }

// function userInfo(user) {
//   return {_id: user._id, email: user.email}
// }

exports.signup = function(req, res, next) {
    const username = req.body.username;
    const email = req.body.email;
    const password = req.body.password;
  

    if (!password || !username) {
        return res.status(500).send({ error: 'You must provide an password, and username'});
    }

    // Check if a username with a given email exists
    User
        .findOne({ username: username }, function(err, existingUser) {
            if (err) { return next(err); }

            // If a user with email does exist, return an error
            if (existingUser) {
            return res.status(422).send({ error: 'Username is already in use' });
            }

        // If a user with user does NOT exist, create and save user record
        const user = new User({
            username: username,
            email: email,
            password: password
        });

        user.save(function(err) {
        if (err) { return next(err); }

        // Respond to request indicating the user was created
        res.json({
            token: tokenForUser(user),
            user: user });
        });
    })
    .catch(err => {
                console.log(err)
                res.status(500).json({message:'internal server error'});
            })
}