app.js

// NARNIAC BY TEEJ
// 2020-02-02

// IMPORT THE NODE PACKAGES HERE
var createError = require('http-errors');
var express = require('express');
var path = require('path');
var cookieParser = require('cookie-parser');
var logger = require('morgan');
var expressSession = require('express-session');
var passport = require('passport');
var LocalStrategy = require('passport-local').Strategy;
var mongoose = require('mongoose');
var bcrypt = require('bcrypt');
require('dotenv').config()

// Establish database connection
require('./model');
var User = mongoose.model('User');
// need to change mongoose for development compatability
if ((process.env.MONGO_USERNAME || process.env.MONGO_PASSWORD || "None") == "None") {
  mongoose.connect('mongodb://' + (process.env.BASE_URL || 'localhost') + ':27017/main-db', { useNewUrlParser: true,  useUnifiedTopology: true });
  console.log("Running on the local database...");
}
else {
  mongoose.connect('mongodb://' + process.env.MONGO_USERNAME + ':' + process.env.MONGO_PASSWORD + '@' + (process.env.BASE_URL || 'localhost') + ':27017/main-db', { useNewUrlParser: true,  useUnifiedTopology: true });
  console.log("Running with the environment variable desired database...");
}
// Start app
var app = express();

// view engine setup
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'ejs');

// Setup middleware for the app
app.use(logger('dev'));
app.use(express.json());
app.use(express.urlencoded({ extended: false }));
app.use(cookieParser());
app.use(express.static(path.join(__dirname, 'public')));
app.use(expressSession({
  secret: (process.env.EXPRESS_SESSION_SECRET || 'ajsdf#$%SFG98fj0dsjfoi2343GD34gh@#FdsFASFeFaSDfErreSRE')
}));
app.use(passport.initialize());
app.use(passport.session());

passport.use(new LocalStrategy({
  usernameField: 'email',
  passwordField: 'password',
}, function(email, password, next) {
  User.findOne({
      email: email
  }, function(err, user) {
      if (err) return next(err);
      if (!user || !bcrypt.compareSync(password, user.passwordHash)) {
          return next({message: 'Email or password incorrect'})
      }
      next(null, user);
  })
}));


// Serialize and Deserialize the json data
passport.serializeUser(function(user, next) {
  next(null, user._id);
});
passport.deserializeUser(function(id, next) {
  User.findById(id, function(err, user) {
      next(err, user);
  });
});

/* GET home page. */
app.get('/', function(req, res, next) {
  res.render('index', { title: 'Dumm' });
});

/* adding in books api */
app.get('/books', function(req, res, next) {
  res.render('books');
});

/* GET main page. */

app.get('/main', function (req, res, next) {
  // res.render('main');
  res.render('books');
});

// LOGIN AND SIGNUP INFORMATION
app.post('/login',
    passport.authenticate('local', { failureRedirect: '/login-page' }),
    function(req, res) {
        res.redirect('/books');
    });

app.get('/login-page', function(req, res, next) {
    res.render('login-page')
})

app.post('/signup', function(req, res, next) {
  User.findOne({
    email: req.body.email
  }, function(err, user){
      if (err) return next (err);
      if (user) return next({message: "User already exists"});
      let newUser = new User({
        email: req.body.email,
        passwordHash: bcrypt.hashSync(req.body.password, 10)
      })
      newUser.save(function(err){
        if(err) return next(err);
        res.redirect('/main');
      });
      console.log(" ~~ ~~ ~~ [new user] ~~ ~~ ~~ ");
      console.log(req.body.email +" has signed up!");
      console.log(" ~~ ~~ ~~ ~~ ~~ ~~ ~~ ~~ ~~ ");
      });
  //console.log(req.body);
});

// ERROR HANDLING
// catch 404 and forward to error handler
app.use(function(req, res, next) {
  next(createError(404));
});

// error handler
app.use(function(err, req, res, next) {
  // set locals, only providing error in development
  res.locals.message = err.message;
  res.locals.error = req.app.get('env') === 'development' ? err : {};

  // render the error page
  res.status(err.status || 500);
  res.render('error');
});

module.exports = app;