server.js

/* Module dependencies. */

var bodyParser = require('body-parser');
var express = require('express');
var cookieParser = require('cookie-parser');
var handlebars = require('express3-handlebars');
var http = require('http');
var MongoClient = require('mongodb').MongoClient;
var assert = require('assert');
var path = require('path');
var _ = require('lodash');

// Route Functions
var index = require('./routes/index');
var register = require('./routes/register');
var settings = require('./routes/settings');
var support = require('./routes/support');
var paymentinfo = require('./routes/paymentinfo');

//Customer Routes Functions
var customerHome = require('./routes/customer/home');
var deal = require('./routes/customer/deal');
var orderSummary = require('./routes/customer/order-summary');
var map = require('./routes/customer/map');

//Retailer Routes Functions
var retailerHome = require('./routes/retailer/home');
var retailerOptions = require('./routes/retailer/options');
var retailerInfo = require('./routes/retailer/info');
var retailerVerification = require('./routes/retailer/verification');
var retailerConfirmation = require('./routes/retailer/confirmation');

//JSON OBJECTS
var users = require('./users.json');
var offers = require('./data.json');

// express variable
var app = express();

// all environments
app.set('port', process.env.PORT || 3000);
app.set('views', path.join(__dirname, 'views'));
app.engine('handlebars', handlebars());
app.set('view engine', 'handlebars');
app.use(express.static(path.join(__dirname, 'public')));
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: false }));
app.use(cookieParser());

//Re-routing to login st
app.get('/', function (req, res) {
    res.redirect('/login');
});

// Add routes here
app.get('/login', index.view);
app.post('/login', login);
app.get('/register', register.view);
app.post('/register', registerNewUser);
app.get('/settings', settings.view);
app.get('/support', support.view);
app.get('/paymentinfo', paymentinfo.view);

// Routes to see current state of database
app.get('/users', function(req, res) {
    res.send(users);
});
app.get('/offers', function(req, res) {
    res.send(offers);
});

// Add customer routes
app.get('/customer/home', function(req, res){
    res.render('customer/home', offers);
});

app.get('/customer/home2', function(req,res){
  //data['showAlternate']	=	true;
  res.render('customer/home2', offers);
});

app.get('/customer/deal', deal.view);
app.get('/customer/order-summary', orderSummary.view);
app.get('/customer/map', map.view);

//Add retailer routes
app.get('/retailer/home', retailerHome.view);
app.post('/retailer/home', createNewOffer);
app.get('/retailer/options',retailerOptions.view);
app.post('/retailer/options', addOptionsToOffer);
app.get('/retailer/verification',retailerVerification.view);
app.get('/retailer/confirmation', retailerConfirmation.view);
app.get('/retailer/info', retailerInfo.view);

http.createServer(app).listen(app.get('port'), function(){
    console.log('Express server listening on port ' + app.get('port'));
});


//Helper functions
function login(req, res) {
    var email = req.body.email;
    var passw = req.body.password;
    var user = _.find(users.usersList, {'email': email, 'password': passw});
    if(user && user.type === 'Customer') {
        res.cookie('username', user.username);
        res.redirect('/customer/home');
    }
    else if(user && user.type === 'Retailer') {
        res.cookie('username', user.username);
        res.redirect('/retailer/home');
    } else if(user)
        //alert('ERROR. User is neither Customer nor Retailer!!!');
        console.log('ERROR. User is neither Customer nor Retailer');
    else
        res.redirect('/login');
}

function registerNewUser(req, res) {
    if(checkUniqueness(req.body)) {
        console.log('Username or email already exists. Try ' + req.body.username + '8');
        return;
    }

    if(!checkNewUserRequest(req)) {
        //console.log(req.body);
        console.log('Please fill all required fields');
        return;
    }

    users.usersList.push(
        {
            "firstName": req.body.firstName,
            "lastName": req.body.lastName,
            "username": req.body.username,
            "type": req.body.radio,
            "email": req.body.email,
            "password": req.body.password,
            "id": (users.usersList.length + 1)
        }
    );

    login(req, res);
}

function checkUniqueness(body) {
    return _.find(users.usersList, {'username': body.username}) ||
        _.find(users.usersList, {'email': body.email})
}

function checkNewUserRequest(req){
    if(req.body.radio && req.body.firstName &&
        req.body.lastName && req.body.username &&
        req.body.email && req.body.password &&
        req.body.confirmPassword && req.body.checkbox === 'on') {

        if(req.body.password === req.body.confirmPassword)
            return true;

    }
    return false;
}

function createNewOffer(req, res) {
    if(!checkNewOfferRequest(req)) {
        console.log('Please fill all required fields');
        return;
    }

    var feature;
    if(req.body.radio == 'YES') {
        var offer = _.find(offers.offers, {'feature': true});
        offer.feature = false;
        console.log(offer);
        feature = true;
    }

    offers.offers.push({
        "owner": req.body.owner,
        "name": req.body.name,
        "id": offers.offers.length + 1,
        "wait-time": "35-50 min",
        "offer": req.body.offer,
        "price": parseInt(req.body.price),
        "price-per-unit": "$" + req.body.price + ".00/" + req.body.measure,
        "quantity": parseInt(req.body.quantity),
        "img": "http://lorempixel.com/400/200/food",
        "local-img": "http://lorempixel.com/400/200/food",
        "feature": feature
    });

    res.cookie('offerId', offers.offers.length);
    res.redirect('/retailer/options');
}

function addOptionsToOffer(req, res) {
    var id = parseInt(req.cookies.offerId);
    var offer = _.find(offers.offers, {'id': id});

    if(offer) {
        if(req.body.radCharity) {
            offer.donationOrg = req.body.radCharity;
        } else {
            offer.donationOrg = null;
        }

        if(req.body.radProfit) {
            offer.profitOrg = req.body.radProfit;
        } else {
            offer.profitOrg = null;
        }
    }

    if(offer.profitOrg)
        res.render('retailer/confirmation', offer);
}

function checkNewOfferRequest(req){
    if(req.body.owner && req.body.name &&
        req.body.offer && req.body.price &&
        req.body.measure && req.body.quantity &&
        req.body.radio) {
        return true;
    }
    return false;
}

/*var url = 'mongodb://localhost:27017/myproject';

 var insertDocuments = function(db, callback) {
 // Get the documents collection
 var collection = db.collection('documents');
 // Insert some documents
 collection.insertMany([
 {a : 1}, {a : 2}, {a : 3}
 ], function(err, result) {
 assert.equal(err, null);
 assert.equal(3, result.result.n);
 assert.equal(3, result.ops.length);
 console.log("Inserted 3 documents into the collection");
 callback(result);
 });
 };

 var findDocuments = function(db, callback) {
 // Get the documents collection
 var collection = db.collection('documents');
 // Find some documents
 collection.find({}).toArray(function(err, docs) {
 assert.equal(err, null);
 console.log("Found the following records");
 console.log(docs);
 callback(docs);
 });
 };

 // Use connect method to connect to the server
 MongoClient.connect(url, function(err, db) {
 assert.equal(null, err);
 console.log("Connected successfully to server");

 insertDocuments(db, function() {
 findDocuments(db, function () {
 db.close();
 });
 });
 });*/