app.js

if (process.env.NODE_ENV !== "production") {
    require('dotenv').config();
}

const express = require('express');
const session = require('express-session');
const path = require('path');
const methodOverride = require('method-override');
const mongoose = require('mongoose');
const flash = require('connect-flash')
const MongoStore = require('connect-mongo');

const userRoutes = require('./routes/User');
const playlistRoutes = require('./routes/Playlist');
const searchRoutes = require('./routes/Search');


const app = express();


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



//let gfs;

mongoose.connect(process.env.MONGODB_URI, {
    useNewUrlParser: true,
    useUnifiedTopology: true,
    useCreateIndex: true,
    useFindAndModify: false
})
.then(() => {
    console.log('Mongoose Connection Open!');
    /* const conn = mongoose.connection;

    gfs = Grid(conn.db, mongoose.mongo);

    console.log('Gridfs-mongo connection Open'); */
})
.catch((e) => {
    console.log('ERROR!');
    console.log(e);
})

const secret = process.env.SECRET || 'SECRET';

const store = MongoStore.create({
    mongoUrl: process.env.MONGODB_URI,
    secret,
    touchAfter: 24 * 60 * 60
})

store.on('error', function(e) {
    console.log('SESSION STORE ERROR', e);
})


const sessionConfig = {
    store,
    name: "session",
    secret,
    resave: false,
    saveUninitialized: true,
    cookie: {
        httpOnly: true,
        expires: Date.now() + 1000 * 60 * 60 * 24 * 7,
        maxAge: 1000 * 60 * 60 * 24 * 7
    }
}

app.use(express.urlencoded({ 'extended': true }));
app.use(express.json());
app.use(methodOverride('_method'));
app.use(express.static(path.join(__dirname, 'public')));
app.use(session(sessionConfig));
app.use(flash());

//Enabling flash
app.use((req, res, next) => {
    res.locals.warning = req.flash('warning');
    next();
})

app.get('/', (req, res) => {
    res.sendFile(path.join(__dirname, './public/mainpage.html'));
});

app.use('/users', userRoutes);
app.use('/users', playlistRoutes);
app.use('/search', searchRoutes);


app.get('*', (req, res) => {
    if(req.session.user_id) {
        res.redirect('/users')
    }
    else {
        res.redirect('/');
    }
})


// Route to stream music

/* app.get('/audio/:filename', (req, res) => {

   const readstream = gfs.createReadStream({filename: req.params.filename})
    
   readstream.on('error', (error) => {
        res.sendStatus(500)
   })
   res.type('audio/mpeg');
   readstream.pipe(res)
}); */



PORT = process.env.PORT || 8000;

app.listen(PORT, () => {
    console.log(`APP is listening on Port ${PORT}`);
})