require("dotenv").config();

const path = require("path");
const express = require("express");
const { engine } = require("express-handlebars");
const session = require("express-session");

const connectDB = require("./src/config/db");
const seedData = require("./src/seed/seed");

const homeRoute = require("./src/routes/home.route");
const productRoute = require("./src/routes/product.route");
const cartRoute = require("./src/routes/cart.route");
const profileRoute = require("./src/routes/profile.route");
const renderRoute = require("./src/routes/render.route");
const authRoute = require("./src/routes/auth.route");
const adminRoute = require("./src/routes/admin.route");

const User = require("./src/models/User");

const app = express();

app.use(express.urlencoded({ extended: true, limit: "2mb" }));
app.use(express.json({ limit: "2mb" }));
app.use(express.static(path.join(__dirname, "public")));

app.use(
  session({
    secret: "minishop-dev-secret",
    resave: false,
    saveUninitialized: false
  })
);

app.use(async (req, res, next) => {
  res.locals.currentUser = null;
  res.locals.isAdmin = false;

  if (req.session.userId) {
    const user = await User.findById(req.session.userId).lean();

    if (user) {
      res.locals.currentUser = user;
      res.locals.isAdmin = user.role === "admin";
      req.currentUser = user;
    }
  }

  next();
});

app.engine(
  "hbs",
  engine({
    extname: ".hbs",
    defaultLayout: "main",
    layoutsDir: path.join(__dirname, "src/views/layouts"),
    partialsDir: path.join(__dirname, "src/views/partials")
  })
);

app.set("view engine", "hbs");
app.set("views", path.join(__dirname, "src/views"));

app.use("/", homeRoute);
app.use("/products", productRoute);
app.use("/cart", cartRoute);
app.use("/profile", profileRoute);
app.use("/", renderRoute);
app.use("/auth", authRoute);
app.use("/admin", adminRoute);

const PORT = process.env.PORT || 3000;

async function bootstrap() {
  await connectDB();
  await seedData();

  app.listen(PORT, () => {
    console.log(`http://localhost:${PORT}`);
  });
}

bootstrap().catch((err) => {
  console.error(err);
  process.exit(1);
});