"use client";

import { useEffect } from "react";

/**
 * Registers public/sw.js so the terminal can open offline. Production only:
 * in `next dev` the build assets are not content-hashed, and caching them
 * would serve stale code while developing.
 */
export default function ServiceWorkerRegister() {
  useEffect(() => {
    if (process.env.NODE_ENV !== "production" || !("serviceWorker" in navigator)) return;
    navigator.serviceWorker.register("/sw.js").catch(() => {
      // Unsupported or blocked: the app still works online.
    });
  }, []);
  return null;
}