server.js

let express = require('express');
let bodyParser = require('body-parser');
let mongoose = require('mongoose');
let path = require('path');
let Restaurant = require('./models/restaurantModel');

mongoose.Promise = global.Promise;

// Connect to DB and check the connection
let connection = process.env.CONNECTION_STRING || 'mongodb://localhost/restaurantDB';
mongoose.connect(connection, { useMongoClient: true })
  .then(() => {console.log('Successfully connected to mongoDB');})
  .catch((error) => console.error(error));

let app = express();

// Middlewares
app.use(express.static('public'));
app.use(express.static('node_modules'));
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: false }));

// PORT
const SERVER_PORT = process.env.PORT || 7000;
app.listen(SERVER_PORT, () => console.log(`Server up and running on port ${SERVER_PORT}...`));


/****** RESTAURANT ******/
// 1) get the restaurant homepage
app.get('/', (req, res) => {
  res.sendFile(path.join(__dirname + '/public/restaurant/restaurant.html'));
});

// 2) get the orders homepage and post new order
app.route('/orders')
  .get((req, res) => {
    res.sendFile(path.join(__dirname + '/public/restaurant/orders.html'));
  })
  .put((req, res) => {
    Restaurant.findOneAndUpdate({}, { $push: { orders: req.body } }, { new: true }, (err, updatedRes) => {
      res.send(updatedRes);
    }
    );
  });

// 3) get the restaurant's name and menu
app.get('/restaurant/restauranNameMenu', (req, res) => {
  Restaurant.find({}, (err, restaurantResult) => {
    if (err) throw err;
    res.send(restaurantResult);
  });
});

// 4) get the restaurant's number of orders and update the number
app.route('/restaurant/restauranNumOrders')
  .get((req, res) => {
    Restaurant.find({}, (err, restaurantResult) => {
      if (err) throw err;
      res.send(restaurantResult);
    });
  })
  .put((req, res) => {
    Restaurant.findOneAndUpdate({}, { numOrders: req.body.ordersNumber }, { new: true }, (err, updatedRes) => {
      res.send(updatedRes);
    });
  });

// 5) update order property
app.put('/orders/:id', (req, res) => {
  let id = req.params.id;
  let $update = { $set: {} };
  $update.$set[`orders.$.${req.body.property}`] = req.body.value;

  Restaurant.findOneAndUpdate({ 'orders.orderId': id },  $update, { new: true }, (err, updatedRestaurant) => {
    if (err) throw err;
    res.send(updatedRestaurant.orders);
  });
});

// 6) update map info to specific order
app.put('/orders/:id/map', (req, res) => {
  let id = req.params.id;

  Restaurant.findOne({ 'orders.orderId': id }, (err, updatedRestaurant) => {
    if (err) throw err;

    for(let i = 0; i < updatedRestaurant.orders.length; i++) {
      if (updatedRestaurant.orders[i].orderId == id) {
        updatedRestaurant.orders[i].mapRoute.push(req.body.address);
      }
    }
    updatedRestaurant.save((error, restaUpdate) => {
      if (error) throw error;
      res.send(restaUpdate.orders);
    });
  });
});

/****** DELIVERY ******/
// 1) get the delivery homepage
app.get('/delivery', (req, res) => {
  res.sendFile(path.join(__dirname + '/public/delivery/delivery.html'));
});

// 3) get the list of employees
app.get('/delivery/employees', (req, res) => {
  Restaurant.find({}).populate('employees').exec((err, restaurantResult) => {
    if (err) throw err;
    res.send(restaurantResult[0].employees);
  });
});

// 4) get all the orders
app.get('/delivery/ordersReady', (req, res) => {
  Restaurant.find({}).populate('orders').exec((err, restaurantResult) => {
    if (err) throw err;
    res.send(restaurantResult[0].orders);
  });
});

// 5) get restaurant location
app.get('/delivery/restauranLocation', (req, res) => {
  Restaurant.find({}).exec((err, restaurantResult) => {
    if (err) throw err;
    res.send(restaurantResult[0].address);
  });
});

/****** CUSTOMER ******/
// 1) get the customer homepage
app.get('/customer', (req, res) => {
  res.sendFile(path.join(__dirname + '/public/customer/customer.html'));
});

// 2) get the customerTime page
app.get('/customerTime', (req, res) => {
  res.sendFile(path.join(__dirname + '/public/customer/customerTime.html'));
});

// 3) get the customer order by entered ID
app.get('/customer/:id', (req, res) => {
  let id = req.params.id;

  Restaurant.findOne({ 'orders.orderId': id }, (err, restaResult) => {
    if (err) throw err;
    // order doesn't exist
    if (!restaResult) {
      res.send('Order Not Found');
    } else {
    // order exist
      for(let i = 0; i < restaResult.orders.length; i++) {
        if (restaResult.orders[i].orderId == id) {
          res.send(restaResult.orders[i]);
        }
      }
    }
  });
});

/****** ORDERS ******/
// 1) update orders properties
app.route('/ord')
  .put((req, res) => {
    Restaurant.findOne({ orders: { $elemMatch: { orderId: req.body.orderId } } }, function(err, restaurant) {

      for(var i = 0; i < restaurant.orders.length && restaurant.orders[i].orderId != req.body.orderId; i++);
      restaurant.orders[i].name = req.body.name;
      restaurant.orders[i].phoneNumber = req.body.phoneNumber;
      restaurant.orders[i].status = req.body.status;
      restaurant.orders[i].location = req.body.location;
      restaurant.orders[i].dishes = req.body.dishes;
      restaurant.orders[i].totalPrice = req.body.totalPrice.slice(0, 2);
      restaurant.save(function(err) {
        if (err) throw err;
        else res.send('order successfully updated!');
      });
    });
  });

// 2) update order status
app.route('/ord2')
  .put((req, res) => {
    Restaurant.findOne({ orders: { $elemMatch: { orderId: req.body.orderId } } }, function(err, restaurant) {

      for(var i = 0; i < restaurant.orders.length && restaurant.orders[i].orderId != req.body.orderId; i++);
      restaurant.orders[i].name = req.body.name;
      restaurant.orders[i].status = req.body.status;
      restaurant.save(function(err) {
        if (err) throw err;
        else res.send('order successfully updated!');
      });
    });
  });