var nodemailer = require('nodemailer');
var passport = require('passport');
var LocalStrategy = require('passport-local').Strategy;

var User = require('../models/user');

exports.register = function(req, res, next) {
  res.render('register', { title: 'Rafflefly | Register' });
}

exports.post_register = function(req, res, next) {
  var first_name = req.body.first_name;
  var last_name = req.body.last_name;
  var email = req.body.email;
  var password = req.body.password;

  // validations
  req.checkBody('first name', 'The first name is required').notEmpty();
  req.checkBody('last name', 'The last name is required').notEmpty();
  req.checkBody('email', 'An account email is required').notEmpty();
  req.checkBody('email', 'This account email is not valid').isEmail();
  req.checkBody('password', 'An account password is required').notEmpty();

  if (error) {
    req.flash('error', 'The form could not send successfully');
  } else {
    var newUser = new User({
      first_name: first_name,
      last_name: last_name,
      email: email,
      password: password,
    });

    nodemailer.createTestAccount((err, account) => {
      // create reusable transporter object using the default SMTP transport
      if (process.env.NODE_ENV === 'production') {
        transporter = nodemailer.createTransport({
          host: "smtp.sendgrid.net",
          port: 587,
          auth: {
            user: process.env.SENDGRID_USERNAME,
            pass: process.env.SENDGRID_PASSWORD,
          }
        });
      } else {
        transporter = nodemailer.createTransport({
          host: "smtp.ethereal.email",
          port: 587,
          auth: {
            user: 'qkkvnabtziufbksa@ethereal.email',
            pass: 'A4W9HF2WbhAav263VM',
          }
        });
      }
      // setup email data with unicode symbols
      let mailOptions = {
        from: process.env.GLOBAL_EMAIL || 'ben@benbagley.co.uk', // sender address
        to: `${email}`, // list of receivers
        subject: 'Welcome to Rafflefly', // Subject line
        html: `Welcome to Rafflefly` // html body
      };
      // send mail with defined transport object
      transporter.sendMail(mailOptions, (error, info) => {
        if (error) {
          return console.log(error);
        }

        req.flash('success', 'You are now registered, you can now login!');
        res.redirect('/');
      });
    });

    User.createUser(newUser, function(err, user) {
      if(err) throw err;
      console.log(user);
    });
  }
};

  passport.use(new LocalStrategy({
    usernameField: 'email'
    },
    function(email, password, done) {
      User.getUserByEmail(email, function(err, user){
        if(err) throw err;
        if(!user){
          return done(null, false, {message: 'Unknown Email Address'});
        }

        User.comparePassword(password, user.password, function(err, isMatch){
          if(err) throw err;
          if(isMatch){
            return done(null, user);
          } else {
            return done(null, false, {message: 'Invalid password'});
          }
        });
      });
    }));

  passport.serializeUser(function(user, done) {
    done(null, user.id);
  });

  passport.deserializeUser(function(id, done) {
    User.getUserById(id, function(err, user) {
      done(err, user);
    });
  });

exports.login = function(req, res, next) {
  res.render('login', { title: 'Rafflefly | Login' });
}

exports.post_login = function(req, res, next) {
  res.post('/login', passport.authenticate('local', {
    successRedirect: '/dashboard',
    failureRedirect: '/login',
    failureFlash: true })
  );
}

doctype html
html
  head
    title= title
    meta(name='viewport' content='width=device-width, initial-scale=1')
    meta(charset='utf-8')

    link(rel='stylesheet' href='/stylesheets/output.css')
    link(rel='stylesheet' href='https://cdnjs.cloudflare.com/ajax/libs/animate.css/3.5.2/animate.min.css')
  body(class='antialiased min-h-screen')
    include navigation
    include error
    block content
    include footer

    script(src='https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js')
    script(src='https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.7.1/Chart.bundle.min.js')
    script(src='/javascripts/fontawesome-all.min.js' defer)
    script(src='/javascripts/site.js')