app.js

const express = require('express');
const mongoose = require('mongoose');
const dotenv = require('dotenv');
const morgan = require('morgan');
const {engine} = require('express-handlebars');
const methodOverride = require('method-override');
const passport = require('passport');
const session = require('express-session');
const MongoStore = require('connect-mongo');
const connectDB = require('./config/db');

// Load config
dotenv.config({path: "./config/config.env"});

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

// Connect to mongoDB
connectDB();

const app = express();

// Body Parser
app.use(express.urlencoded({ extended: false }));
app.use(express.json());

// Method override
app.use(
    methodOverride(function (req, res) {
      if (req.body && typeof req.body === 'object' && '_method' in req.body) {
        // look in urlencoded POST bodies and delete it
        let method = req.body._method
        delete req.body._method
        return method
      }
    })
  )

// Logging
if (process.env.NODE_ENV === 'development') {
    app.use(morgan('dev'));
}

const PORT = process.env.PORT;

// Handlebars Helpers
const { formatDate, stripTags, truncate, editIcon, select } = require('./helpers/hbs')

// Handlebars
app.engine(
    '.hbs', 
    engine({
        helpers: {
            formatDate,
            stripTags,
            truncate,
            editIcon,
            select
        },
        defaultLayout: 'mainLayout', 
        extname: '.hbs'
    })
);
app.set('view engine', '.hbs');

// Sessions
app.use(session({
    secret: 'chrono trigger',
    resave: false,
    saveUninitialized: false,
    store: MongoStore.create({
        mongoUrl: process.env.MONGO_STR,
        mongooseConnection: mongoose.connection
    })
}))

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

// Set global var
app.use(function(req, res, next) {
    res.locals.user = req.user || null;
    next();
})

// Static folder
app.use(express.static('public'));


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

app.listen(PORT, console.log(`Server connected in ${process.env.NODE_ENV} mode on port ${process.env.PORT}`));