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 ExpressError = require('./utils/ExpressError')
const methodOverride = require('method-override');
const passport = require('passport');
const LocalStrategy = require('passport-local');
const User = require('./models/user');
const helmet = require('helmet')


const mongoSanitize = require('express-mongo-sanitize')

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

const MongoStore = require("connect-mongo").default;
//const dbUrl = process.env.DB_URL

const dbUrl = process.env.DB_URL  || 'mongodb://localhost:27017/yelp-camp';
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(mongoSanitize({
    replaceWith: '_'
}))

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

const store = new MongoStore({
    mongoUrl: dbUrl,
    secret,
    touchAfter: 24*3600
});

store.on('error', function (e) {
    console.log("Session Store Error", e)
})

const sessionConfig = {
    store,
    name: 'session',
    secret,
    resave: false,
    saveUninitialized: true,
    cookie: {
        httpOnly: true,
        //secure: true,
        expires: 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",
];
//This is the array that needs added to
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/dhafbd28q/", //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());


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

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





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

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


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