app.js

const path = require('path');

const express = require('express');
const bodyParser = require('body-parser');
const mongoose = require('mongoose');
const session = require('express-session');
const MongoDbStore = require('connect-mongodb-session')(session);
const csrf = require('csurf');
const flash = require('connect-flash');
const multer = require('multer');
const helmet = require('helmet');
const compression = require('compression');
const morgan = require('morgan');
const fs = require('fs');
const https = require('https');


const errorController = require('./controllers/error');
const User = require('./models/user');


const MONGODB_URI = 'add your api key';

const app = express();
const store = new MongoDbStore({
    uri: MONGODB_URI,
    collection: 'sessions'
});

const csrfProtection = csrf();
const privateKey = fs.readFileSync('server.key');
const certificate = fs.readFileSync('server.cert');

const fileStorage = multer.diskStorage({
    destination: (req, file, cb) => {
        cb(null, 'images');
    },
    filename: (req, file, cb) => {
        cb(null, new Date().toISOString().replace(/:/g, '-') + '-' + file.originalname);
    }
});

const filefilter = (req, file, cb) => {
    if (file.mimetype === 'image/png' || file.mimetype === 'image/jpg' || file.mimetype === 'image/jpeg') {
        cb(null, true);
    } else {
        cb(null, false);
    }
}

app.set('view engine', 'ejs');
app.set('views', 'views');

const adminRoutes = require('./routes/admin');
const shopRoutes = require('./routes/shop');
const authRoutes = require('./routes/auth');

const accessLogStream = fs.createWriteStream(path.join(__dirname, 'access.log'), { flags: 'a' });

app.use(helmet());
app.use(compression());
app.use(morgan('combined', {
    stream: accessLogStream
}));

app.use(bodyParser.urlencoded({ extended: false }));
app.use(multer({ storage: fileStorage }).single('image'));
app.use(express.static(path.join(__dirname, 'public')));
app.use('/images', express.static(path.join(__dirname, 'images')));
app.use(session({ secret: 'my secret ', resave: false, saveUninitialized: false, store: store }));

app.use(csrfProtection);
app.use(flash());

app.use((req, res, next) => {
    res.locals.isAuthenticated = req.session.isLoggedIn;
    res.locals.csrfToken = req.csrfToken();
    next();
});

app.use((req, res, next) => {
    if (!req.session.user) {
        return next();
    }
    User.findById(req.session.user._id)
        .then(user => {
            if (!user) {
                return next();
            }
            req.user = user;
            next();
        })
        .catch(err => {
            next(new Error(err));
        });
});



app.use('/admin', adminRoutes);
app.use(shopRoutes);
app.use(authRoutes);

app.get('/500', errorController.get500);
app.use(errorController.get404);

app.use((error, req, res, next) => {
    res.status(500).render('500', {
        pageTitle: 'Problem Occured !',
        path: '/500',
        isAuthenticated: req.session.isLoggedIn,
        error: error
    });
});

mongoose
    .connect(MONGODB_URI, { useNewUrlParser: true, useUnifiedTopology: true })
    .then(result => {
        // https.createServer({
        //     key: privateKey,
        //     cert: certificate
        // }, app).listen(process.env.PORT || 3000);
        app.listen(process.env.PORT || 3000);

    })
    .catch(err => {
        console.log(err);
    });