newApp.js

const express = require("express");
const mongoose = require("mongoose");
const Listing = require("./models/listing");
const path = require("path");
const methodOverride = require("method-override");
const engine = require("ejs-mate");
const wrapAsync = require("./utils/wrapAsync.js");

const ExpressError = require("./utils/ExpressError.js");

const app = express();
const PORT = 3000;

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", engine);
app.use(express.static(path.join(__dirname, "/public")));

const MONGO_URL = "mongodb://127.0.0.1:27017/wanderlust";
async function main() {
  await mongoose.connect(MONGO_URL);
}

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

app.get(
  "/testListings",
  wrapAsync(async (req, res) => {
    let sampleListing = new Listing({
      title: "my new villa",
      description: "by the beach",
      price: 2000,
      location: "new town , kolkata",
      country: "india",
    });

    await sampleListing.save();
    console.log("sample was saved");
    res.send("sample testing");
  })
);

app.get(
  "/listings",
  wrapAsync(async (req, res) => {
    const allListings = await Listing.find({});
    res.render("listings/index.ejs", { allListings });
  })
);

// New route for creating listing form
app.get(
  "/listings/new",
  wrapAsync((req, res) => {
    res.render("listings/new.ejs");
  })
);

// Show route for a specific listing
app.get(
  "/listings/:id",
  wrapAsync(async (req, res) => {
    let { id } = req.params;
    let listing = await Listing.findById(id);
    if (!listing) {
      throw new ExpressError(404, "Listing Not Found");
    }
    res.render("listings/show.ejs", { listing });
  })
);

// Submit new listing
app.post(
  "/listings",
  wrapAsync(async (req, res) => {
    const newlisting = new Listing(req.body.listing);
    await newlisting.save();
    res.redirect("/listings");
  })
);

// Edit form route
app.get(
  "/listings/:id/edit",
  wrapAsync(async (req, res) => {
    let { id } = req.params;
    const listing = await Listing.findById(id);
    if (!listing) {
      throw new ExpressError(404, "Listing Not Found");
    }
    res.render("listings/edit.ejs", { listing });
  })
);

// Update route
app.put(
  "/listings/:id",
  wrapAsync(async (req, res) => {
    let { id } = req.params;
    await Listing.findByIdAndUpdate(id, { ...req.body.listing });
    res.redirect(`/listings/${id}`);
  })
);

// Delete route
app.delete(
  "/listings/:id",
  wrapAsync(async (req, res) => {
    let { id } = req.params;
    let deletedListing = await Listing.findByIdAndDelete(id);
    console.log(deletedListing);
    res.redirect("/listings");
  })
);

// Catch all for unmatched routes
app.all("*", (req, res, next) => {
  next(new ExpressError(404, "Page Not Found"));
});

// Error handling middleware
app.use((err, req, res, next) => {
  const { status = 500, message = "Something went wrong" } = err;
  res.status(status).send(message);
});

app.listen(PORT, () => {
  console.log(`listening to port ${PORT}.`);
});