import express from "express";
import mongoose from "mongoose";
import cors from "cors";
import dotenv from "dotenv";
import linksRouter from "./routes/links.js";
import authRouter from "./routes/auth.js";

dotenv.config();

const app = express();

app.use(cors());
app.use(express.json());

// Static folder per le icone
app.use("/uploads", express.static("uploads"));

// Auth routes
app.use("/auth", authRouter);

// Link routes (protette)
app.use("/links", linksRouter);

// Connessione Mongo (URL da env con fallback)
const MONGO_URI = process.env.MONGO_URI || "mongodb://mongo:27017/mydb";

mongoose
  .connect(MONGO_URI)
  .then(() => {
    console.log("MongoDB connesso");
  })
  .catch(err => {
    console.error("❌ Errore di connessione a MongoDB:", err.message);
    process.exit(1); // termina il processo
  });



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

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

server.on('error', (err) => {
  if (err.code === 'EADDRINUSE') {
    console.error(`❌ Porta ${PORT} già in uso. Arresto del processo.`);
    process.exit(1);
  } else {
    console.error('Errore del server:', err);
    process.exit(1);
  }
});