app.js

const path = require("path");

const express = require("express");
const bodyParser = require("body-parser");
const mongoose = require("mongoose");
const session = require("express-session");
const MongoDBStore = require("connect-mongodb-session")(session);
const flash = require("connect-flash");
const csrf = require("csurf");
const multer = require("multer");
const helmet = require("helmet");
const compression = require("compression");
const cookieParser = require("cookie-parser"); // Add cookie-parser

const errorController = require("./controllers/error");
const User = require("./models/user");

const MONGODB_URI = `mongodb+srv://${process.env.MONGO_USER}:${process.env.MONGO_PASSWORD}@cluster2.uv8bpmx.mongodb.net/${process.env.MONGO_DEFAULT_DATABASE}`;

const app = express();
const store = new MongoDBStore({
  uri: MONGODB_URI,
  collection: "sessions",
});
const csrfProtection = csrf();
const fileStorage = multer.diskStorage({
  destination: (req, file, cb) => {
    cb(null, "images");
  },
  filename: (req, file, cb) => {
    cb(
      null,
      new Date().toISOString().replace(/:/g, "-") + "-" + file.originalname
    );
  },
});

const fileFilter = (req, file, cb) => {
  if (
    file.mimetype === "image/png" ||
    file.mimetype === "image/jpg" ||
    file.mimetype === "image/jpeg"
  ) {
    cb(null, true);
  }
  cb(null, false);
};

app.set("view engine", "ejs");
app.set("views", "views");

const adminRoutes = require("./routes/admin");
const shopRoutes = require("./routes/shop");
const authRoutes = require("./routes/auth");

app.use(helmet());
app.use(compression());

app.use(bodyParser.urlencoded({ extended: false }));
app.use(
  multer({ storage: fileStorage, fileFilter: fileFilter }).single("image")
);
app.use(express.static(path.join(__dirname, "public")));
app.use("/images", express.static(path.join(__dirname, "images")));

app.use(
  session({
    secret: "my secret",
    resave: false,
    saveUninitialized: false,
    store: store,
  })
);

app.use(csrfProtection);

app.use(flash());

app.use((req, res, next) => {
  res.locals.isAuthenticated = req.session.isLoggedIn;
  res.locals.csrfToken = req.csrfToken();
  next();
});

app.use((req, res, next) => {
  // Check if req.session.user exists
  if (!req.session.user) {
    return next();
  }

  try {
    const parsedSessionData = JSON.parse(req.session.user);
    const userId = parsedSessionData._id;

    User.findById(userId)
      .then((user) => {
        if (!user) {
          return next();
        }
        req.user = user;
        next();
      })
      .catch((err) => {
        next(new Error(err));
      });
  } catch (parseError) {
    next(new Error(parseError));
  }
});

app.use("/admin", adminRoutes);
app.use(shopRoutes);
app.use(authRoutes);

app.get("/500", errorController.get500);

app.use(errorController.get404);

app.use((error, req, res, next) => {
  console.log({ error: error });
  res.status(500).render("500", {
    pageTitle: "Error!",
    path: "/500",
    isAuthenticated: req.isLoggedIn,
  });
});

mongoose
  .connect(MONGODB_URI)
  .then((result) => {
    app.listen(process.env.PORT || 5000);
  })
  .catch((err) => {
    console.log(err);
  });