server.js

const express = require('express');
const mongoose = require('mongoose');
const passport = require('passport');
const session = require('express-session');
const flash = require('connect-flash');
const bodyParser = require('body-parser');
const path = require('path');
const app = express();

// Load environment variables
require('dotenv').config();

// Passport configuration
require('./config/passport')(passport);

// Database configuration
const db = process.env.MONGO_URI;

// Connect to MongoDB
mongoose.connect(db, { useNewUrlParser: true, useUnifiedTopology: true })
    .then(() => console.log('MongoDB connected'))
    .catch(err => console.log(err));

// EJS setup
app.set('view engine', 'ejs');

// Bodyparser middleware
app.use(bodyParser.urlencoded({ extended: true }));
app.use(bodyParser.json());

// Express session middleware
app.use(session({
    secret: 'secret',
    resave: true,
    saveUninitialized: true
}));

// Passport middleware
app.use(passport.initialize());
app.use(passport.session());

// Connect flash
app.use(flash());

// Global variables for flash messages
app.use((req, res, next) => {
    res.locals.success_msg = req.flash('success_msg');
    res.locals.error_msg = req.flash('error_msg');
    res.locals.error = req.flash('error');
    next();
});

// Static folder
app.use(express.static(path.join(__dirname, 'public')));

// Routes
app.use('/', require('./routes/index'));
app.use('/users', require('./routes/users'));

// Port configuration
const PORT = process.env.PORT || 5000;

// Start server
app.listen(PORT, () => {
    console.log(`Server running on port ${PORT}`);
});