// static variables and imports
import express from "express";
import {
  loginUser,
  createUser,
  updateUser,
  deleteUser,
  getAllUsers,
} from "../shared/database.js";
import dotenv from "dotenv";
import path from "path";
import { fileURLToPath } from "url";
const app = express();
dotenv.config();
const port = 4001;

app.use(express.json());
app.use(express.static("public"));

app.use(express.urlencoded({ extended: true }));
app.set("view engine", "ejs");

const __filename = fileURLToPath(import.meta.url);
const __dirname = path.dirname(__filename);

app.listen(port, () => {
  console.log(`Server is running on http://localhost:${port}`);
});

// -- here comes the main code --
app.get("/", (req, res) => {
  res.render("index.ejs", { error: null });
});

app.post("/login", (req, res) => {
  loginUser(req.body.username, req.body.password).then((result) => {
    if (result.success) {
      // On successful login, render the dashboard and update latestUser
      res.status(200).render("userView.ejs");
    } else {
      // On failure, re-render login page with error message
      res
        .status(401)
        .render("index.ejs", { error: result.message, });
    }
  });
});

// error handling code
app.use((err, req, res, next) => {
  // Log the error stack and send a generic error response
  console.error(err.stack);
  res.status(500).send("Something broke!");
});