app.js

const dotenv = require('dotenv');

dotenv.config();

const express = require('express');
const mongoose = require('mongoose');
const path = require('path')
const ejsMate = require('ejs-mate')
const ExpressError = require('./utils/ExpressError')
const methodOverride = require('method-override')
const session = require('express-session')
const flash = require('connect-flash');
const passport = require('passport');
const LocalStrategy = require('passport-local')
const User = require('./models/user')

const mongoSanitize = require('express-mongo-sanitize');
var bodyParser = require('body-parser');



const userRoutes = require('./routes/users')
const campgroundRoutes = require('./routes/campgrounds')
const reviewRoutes = require('./routes/reviews');


const MongoDBStore=require("connect-mongo")(session);

const dbUrl=process.env.DB_URL
//const dbUrl='mongodb://127.0.0.1:27017/yelp-camp'


mongoose.connect(dbUrl, {
    useNewUrlparser: 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.use(express.static(path.join(__dirname, 'public')))
app.engine('ejs', ejsMate)
app.set('view engine', 'ejs');
app.set('views', path.join(__dirname, 'views'))

app.use(express.urlencoded({ extented: true }))
app.use(methodOverride('_method'))

app.use(bodyParser.json());

app.use(mongoSanitize());

const store=new MongoDBStore({
    url:dbUrl,
    secret:"thisissecret",
    touchAfter:24*3600
})

store.on("error",function(e){
    console.log("session store error",e)
})

const sessionConfig = {
    store,
    name: 'session',
    secret:"thisissecret",
    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(passport.initialize());
app.use(passport.session())
passport.use(new LocalStrategy(User.authenticate()))
passport.serializeUser(User.serializeUser());
passport.deserializeUser(User.deserializeUser())

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

app.get('/', (req, res) => {
    const currentUser = req.user; // Adjust this based on your authentication setup

    res.render('home', { currentUser });

})

app.use('/', userRoutes)

app.use('/campgrounds', campgroundRoutes)

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



app.all('*', (req, res, next) => {
    next(new ExpressError("page not found", 404))
    //res.send("404!!")
})


app.use((err, req, res, next) => {
    const { statusCode = 500, message = "something wrong" } = err;
    if (!err.message) err.message = "sorry!There are some problem."
    res.status(statusCode).render('error', { err })
    // res.send("oh boy!went wrong")
})

app.listen(3000, (req, res) => {
    console.log("server running")
})