server.js

import express from "express";
import mongoose from "mongoose";
import session from "express-session";
import flash from "connect-flash";
import passport from "./config/passport.js";
import methodOverride from "method-override";
import path from "path";
import { fileURLToPath } from "url";
import dotenv from "dotenv";
import User from "./models/User.js";
dotenv.config();

// Import Routes
import userRoutes from "./routes/users.js";
import postRoutes from "./routes/posts.js";
import connectDb from "./config/db.js";

// Initialize app
const app = express();
const __filename = fileURLToPath(import.meta.url);
const __dirname = path.dirname(__filename);

// Connect to MongoDB
connectDb();

// Middleware
app.use(express.urlencoded({ extended: false }));
app.use(express.json());
app.use(methodOverride("_method"));
app.use(express.static("public"));

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

// Set EJS as view engine
app.set("view engine", "ejs");

// Express session
app.use(
  session({
    secret: "secret",
    resave: true,
    saveUninitialized: true,
  })
);

// Passport middleware
app.use(passport.initialize());
app.use(passport.session());

// Connect flash
app.use(flash());

// Global variables for flash messages
app.use((req, res, next) => {
  res.locals.success_msg = req.flash("success_msg");
  res.locals.error_msg = req.flash("error_msg");
  res.locals.error = req.flash("error");
  res.locals.loggedIn = req.isAuthenticated();
  next();
});

// Middleware to ensure user is authenticated
const ensureAuthenticated = (req, res, next) => {
  if (req.isAuthenticated()) {
    return next();
  }
  req.flash("error_msg", "You need to log in to view this page");
  res.redirect("/users/login");
};

// Routes
app.use("/users", userRoutes);
app.use("/posts", ensureAuthenticated, postRoutes);

// Home route - Protected
app.get("/", (req, res) => {
  res.render("landing");
});
app.get("/home", ensureAuthenticated, async (req, res) => {
  let admin = false;
  let user = await User.findById(req.user.id);
  if (user.isAdmin) {
    admin = true;
  }
  res.render("home", { posts: [], admin });
});

// Server configuration
const PORT = process.env.PORT || 5000;
app.listen(PORT, () =>
  console.log(`Server started on port http://localhost:${PORT}`)
);