app.js

const express = require('express');
const path = require('path');
const mongoose = require('mongoose');
const ejsMate = require('ejs-mate');
const session = require('express-session');
const flash = require('connect-flash');
const methodOverride = require('method-override')
const ExpressError = require('./utils/ExpressError');
const { title } = require('process');

const campgrounds = require('./routes/campgrounds.js');
const reviews = require('./routes/reviews.js');

mongoose.connect('mongodb://localhost:27017/camp', {
    // useNewUrlParser: true,
    // useCreateIndex: true,
    // useUnifiedTopology: true
});

const db = mongoose.connection;
db.on("error", console.error.bind(console, "connection error:"));
db.once("open", () => {
    console.log("Database connected");
});

const app = express();

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

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

const sessionConfig = {
    secret: 'sec',
    resave: false,
    saveUninitialized: true,
    cookie: {
        httpOnly: true,
        expires: Date.now() + 1000 * 60 * 60 * 24 * 7,
        maxAge: 1000 * 60 * 60 * 24 * 7
    }
}
app.use(session(sessionConfig));
app.use(flash());

app.use((req, res, next) => {
   res.locals.success = req.flash('success');
   res.locals.error = req.flash('error');
   next();
});

app.use('/campgrounds', campgrounds);
app.use('/campgrounds/:id/reviews', reviews);

app.get('/', (req,res) => {
    res.render('home');
});

// for review 

app.all(/(.*)/, (req, res, next) => {
    next(new ExpressError('Page Not Found', 404))
});

app.use((err, req, res, next) => {
    const { statusCode = 500, message = 'Somthing went wrong'} = err;
    if (!err.message) err.message = "Warning!!! Something Went Wrong"
    res.status(statusCode).render('error', { err });
});

app.listen('3000', () => {
    console.log('ON PORT 3000');
});