app.js

if(process.env.NODE_ENV != "production"){
  require('dotenv').config()
}
const express = require("express");
const app = express();
const mongoose = require("mongoose");
const path = require("path");
const MONGO_URL = "mongodb://127.0.0.1:27017/wanderlust";
const methodOverride = require("method-override");
const ejsMate = require("ejs-mate");
const wrapAsync = require("./utils/wrapAsync.js");
const ExpressError = require("./utils/ExpressError.js");
const session = require("express-session");
const MongoStore = require('connect-mongo');
const flash = require("connect-flash");
const passport = require("passport");
const LocalStrategy = require("passport-local");
const User = require("./models/user.js");


const listingRouter = require("./routes/listing.js");
const reviewRouter = require("./routes/review.js");
const userRouter = require("./routes/user.js");


const dbURL = process.env.ATLASDB_URL;
main()
  .then(() => {
    console.log("connected to DB");
  })
  .catch((err) => {
    console.log(err);
  });

async function main() {
  await mongoose.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 sessionOption = {
  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(sessionOption));
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.use("/listings", listingRouter);
app.use("/listings/:id/reviews", reviewRouter)
app.use("/", userRouter);



app.all("*", (req, res, next) => {
  next(new ExpressError(404, "PAGE NOT FOUND!"));
});

//Creating Error Handling MiddleWare
app.use((err,req, res, next ) =>{
  let{ statusCode=500, message="Something Went Wrong!"} = err;
  res.render("error.ejs", {statusCode, message});
  // res.status(statusCode).send(message);
});


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