app.js

const express = require('express');
const mongoose = require('mongoose');
const bodyParser = require('body-parser');
const cors = require('cors');
const passport = require('passport');
const path = require('path');

// Bring in the database object
const config = require('./config/database');

// Mongodb Config
mongoose.set('useCreateIndex', true);

// Connect with the database
mongoose.connect(config.database, {
        useNewUrlParser: true
    })
    .then(() => {
        console.log('Databse connected successfully ' + config.database);
    }).catch(err => {
        console.log(err);
    });

// Initialize the app
const app = express();

// Defining the PORT
const PORT = process.env.PORT || 5000;

// Defining the Middlewares
app.use(cors());

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

// BodyParser Middleware
app.use(bodyParser.json());
// Passport Middleware
app.use(passport.initialize());
app.use(passport.session());


app.get('/', (req, res) => {
    return res.json({
        message: "This is node.js role based authentication system"
    });
});

// Create a custom middleware function
const checkUserType = function (req, res, next) {
    const userType = req.originalUrl.split('/')[2];
    // Bring in the passport authentication starategy
    require('./config/passport')(userType, passport);
    next();
};

app.use(checkUserType);




// Bring in the user routes
const users = require('./routes/users');
app.use('/api/users', users);

const admin = require('./routes/admin');
app.use('/api/admin', admin);


app.listen(PORT, () => {
    console.log(`Server started on port ${PORT}`);
});