app.js

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

const express = require("express");
const MongoStore = require('connect-mongo');
const app = express();
const moongose = require("mongoose");

const dbUrl = process.env.ATLASTDB_URL;

const path = require("path");
const methodOverride = require("method-override");
const ejsMate = require("ejs-mate");
const ExpressError = require("./utils/ExpressError.js");
const session = require("express-session");
const flash = require("connect-flash");
const listingRouter = require("./Routes/listing.js");
const reviewRouter = require("./Routes/reviews.js");
const passport = require("passport");
const LocalStrategy = require("passport-local");
const User = require("./Models/user.js");
const userRouter = require("./Routes/user.js");

main()
  .then(()=>{
    console.log("Connected to DB");
   })
  .catch((err)=>{
    console.log(err);
  })

async function main() {
    await moongose.connect(dbUrl);
};

app.set("view engine", "ejs");
app.set("views", path.join(__dirname,"views"));
app.use(express.urlencoded({extended: true}));
app.use(methodOverride("_method"));
app.engine("ejs", ejsMate);
app.use(express.static(path.join(__dirname,"/public")));

const store = MongoStore.create({
  mongoUrl: dbUrl,
  crypto:{
    secret: process.env.SECRET
  },
  touchAfter: 24 * 3600,
});

store.on("error", ()=>{
  console.log("Error in MONGO SESSION STORE", err);
});

const sessionOptions = {
  store,
  secret: process.env.SECRET,
  resave: false,
  saveUninitialized: true,
  cookie: {
    expires: Date.now() + 7 * 24 * 60 * 60 * 1000,
    maxAge:  7 * 24 * 60 * 60 * 1000,
    httpOnly: true,
  }
}

// app.get("/",(req,res)=>{
//   res.send("Hi! I am root");
// });

app.use(session(sessionOptions));
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.success = req.flash("success");
  res.locals.error = req.flash("error");
  res.locals.currUser = req.user;
  next();
})

// app.get("/demoUser",async (req,res)=>{
//   let fakeUser = new User({
//     email: "student@gmail.com",
//     username: "delta-student"
//   });
//   let registeredUser = await User.register(fakeUser, "helloworld");
//   res.send(registeredUser);
// });

app.use("/listings", listingRouter);
app.use("/listings/:id/reviews", reviewRouter);
app.use("/",userRouter);


app.all("*",(req,res, next)=>{
    next(new ExpressError(404, "Page not Found!"));
});

app.use((err,req,res,next)=>{
    let {statusCode=500, message="Something went wrong!"} = err;
    res.status(statusCode).render("error.ejs",{message});
    // res.status(statusCode).send(message);
});

app.listen(8080, ()=>{
    console.log("Server is listening port 8080");
});