app.js

const express = require("express");
const app = express();
const mongoose = require("mongoose");
const path = require("path");
const ejsMate = require("ejs-mate");
const session = require("express-session");
const flash = require("connect-flash");
const Url = require("./models/url");
const methodOverride = require("method-override");
require("dotenv").config();

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

const sessionConfig = {
    secret: process.env.SESSION_SECRET,
    resave: false,
    saveUninitialized: true,
    cookie: {
        httpOnly: true,
        expires: Date.now() + 1000 * 60 * 60 * 24 * 7,
        maxAge: 1000 * 60 * 60 * 24 * 7,
    },
};
app.use(session(sessionConfig));
app.use(flash());



app.use((req, res, next) => {
    res.locals.currUser = req.user;
    res.locals.success = req.flash("success");
    res.locals.error = req.flash("error");
    app.locals.BACKEND_URL = process.env.BACKEND_URL;
    next();
});

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

async function main() {
    await mongoose.connect(process.env.MONGODB_URL);
}

const port = 8080;

const urlRouter = require("./routes/url");
app.use("/", urlRouter);

app.get("/", async (req, res) => {
    // Fetch some featured URLs or top links if needed
    const topUrls = await Url.find()
        .sort({ hitCount: -1 })
        .limit(5)
        .select("longUrl shortUrl");

    res.render("index", { topUrls, BACKEND_URL: process.env.BACKEND_URL }); // Render the new homepage with the featured URLs
});

//Error Middleware
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(port, () => {
    console.log("Listening on port " + port);
});