app.js

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



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 passport = require('passport');
const LocalStrategy = require('passport-local');
const User = require('./models/user')
const helmet = require('helmet')
const mongoSanitze = require('express-mongo-sanitize')
const MongoDBStore = require('connect-mongo')(session)

const restaurantRoutes = require('./routes/restaurants')
const reviewRoutes = require('./routes/reviews')
const userRoutes = require('./routes/users');
const dbUrl = process.env.DB_URL || 'mongodb://localhost:27017/hunger-mania';

mongoose.connect(dbUrl, {
    useNewUrlParser: true,
    useCreateIndex: true,
    useUnifiedTopology: true,
    useFindAndModify: false
})

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')));
app.use(mongoSanitze({
    replaceWith: '_'
}));

const secret = process.env.SECRET || 'Kanwal';
const store = new MongoDBStore({
    url: dbUrl,
    secret,
    touchAfter: 24*60*60,
})
const sessionConfig = {
    store,
    name: 'session',
    secret,
    resave: false,
    saveUninitialized: true,
    cookie: {
        httpOnly: true,
        // secure: true,
        expire: Date.now() + 1000*60*60*24*7,
        maxAge: 1000*60*60*24*7
    }
}
app.use(session(sessionConfig));
app.use(flash());
app.use(helmet());

const scriptSrcUrls = [
    "https://stackpath.bootstrapcdn.com/",
    "https://api.tiles.mapbox.com/",
    "https://api.mapbox.com/",
    "https://kit.fontawesome.com/",
    "https://cdnjs.cloudflare.com/",
    "https://cdn.jsdelivr.net",
];
const styleSrcUrls = [
    "https://kit-free.fontawesome.com/",
    "https://stackpath.bootstrapcdn.com/",
    "https://api.mapbox.com/",
    "https://api.tiles.mapbox.com/",
    "https://fonts.googleapis.com/",
    "https://use.fontawesome.com/",
    "https://cdn.jsdelivr.net",
];
const connectSrcUrls = [
    "https://api.mapbox.com/",
    "https://a.tiles.mapbox.com/",
    "https://b.tiles.mapbox.com/",
    "https://events.mapbox.com/",
];
const fontSrcUrls = [];
app.use(
    helmet.contentSecurityPolicy({
        directives: {
            defaultSrc: [],
            connectSrc: ["'self'", ...connectSrcUrls],
            scriptSrc: ["'unsafe-inline'", "'self'", ...scriptSrcUrls],
            styleSrc: ["'self'", "'unsafe-inline'", ...styleSrcUrls],
            workerSrc: ["'self'", "blob:"],
            objectSrc: [],
            imgSrc: [
                "'self'",
                "blob:",
                "data:",
                "https://res.cloudinary.com/dkxsz0e4u/", //SHOULD MATCH YOUR CLOUDINARY ACCOUNT! 
                "https://images.unsplash.com/",
            ],
            fontSrc: ["'self'", ...fontSrcUrls],
        },
    })
);

app.use(passport.initialize());
app.use(passport.session());
passport.use(new LocalStrategy(User.authenticate()));

passport.serializeUser(User.serializeUser());
passport.deserializeUser(User.deserializeUser());


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

app.use("/restaurants", restaurantRoutes)
app.use("/restaurants/:id/reviews", reviewRoutes)
app.use("/", userRoutes)

app.get('/', (req, res)=>{
    res.render('home')
})
app.all('*', (req, res, next)=>{
    next(new ExpressError('Page Not Found'))
})
app.use((err, req, res, next)=>{
    const { status = 500} = err;
    if(!err.message) {
        err.message = "Oh No, Something Went Wrong";
    }
    res.status(status).render('error', {err})
})

const port = process.env.PORT || 3000;
app.listen(port, ()=>{
    console.log(`Listening to port ${port}`);
})