frontend/src/components/Navbar.jsx

import React, { useState, useEffect } from "react";
import "../scss/styles.scss";
import "../scss/components/_navbar.scss";
import { Link } from "react-router-dom";

const Navbar = () => {
  const [glitchEffect, setGlitchEffect] = useState(false);
  const [activeLink, setActiveLink] = useState("/");
  const [user, setUser] = useState(null);

  useEffect(() => {
    // Set active link based on current path
    setActiveLink(window.location.pathname);

    // Random glitch effect
    const glitchInterval = setInterval(() => {
      setGlitchEffect(true);
      setTimeout(() => setGlitchEffect(false), 200);
    }, 3000);
    async function fetchUser() {
      const res = await fetch("http://localhost:8080/auth/current_user", {
        credentials: "include", // very important
      });
      if (res.ok) {
        console.log("User response:", res);
        const user = await res.json();
        console.log("User:", user);
        console.log("User display name:", user.displayName);

        setUser(user);
      } else {
        setUser(null);
      }
    }
    fetchUser();

    return () => clearInterval(glitchInterval);
  }, []);

  return (
    <nav className={`navbar ${glitchEffect ? "navbar--glitch" : ""}`}>
      <div className="navbar__logo">
        <div className="navbar__logo-scanner"></div>
        <span className="navbar__logo-text">
          BATTLE<span className="navbar__logo-text">SNAKE</span>
        </span>
      </div>

      {user && (
        <div className="navbar__greeting">
          <span className="navbar__greeting-text">WELCOME</span>
          <span className="navbar__greeting-name">{user.displayName}</span>
        </div>
      )}

      <ul className="navbar__links">
        <li>
          <Link
            to="/"
            className={`navbar__link ${
              activeLink === "/" ? "navbar__link--active" : ""
            }`}
          >
            <span className="navbar__link-icon">⚡</span>
            <span className="navbar__link-text">HOME</span>
            <span className="navbar__link-hover"></span>
          </Link>
        </li>
        {/* will be decided later of we shall keep NOTEBOOK or not */}
        {/* <li>
          <Link
            to="/notebook"
            className={`navbar__link ${
              activeLink === "/notebook" ? "navbar__link--active" : ""
            }`}
          >
            <span className="navbar__link-icon">📓</span>
            <span className="navbar__link-text"></span>
            NOTEBOOK
            <span className="navbar__link-hover"></span>
          </Link>
        </li> */}
        <li>
          <Link
            to="/assignment"
            className={`navbar__link ${
              activeLink === "/assignment" ? "navbar__link--active" : ""
            }`}
          >
            <span className="navbar__link-icon">🎯</span>
            <span className="navbar__link-text">ASSIGNMENT</span>
            <span className="navbar__link-hover"></span>
          </Link>
        </li>
        <li>
          <Link
            to="/editor"
            className={`navbar__link ${
              activeLink === "/editor" ? "navbar__link--active" : ""
            }`}
          >
            <span className="navbar__link-icon">💻</span>
            <span className="navbar__link-text">EDITOR</span>
            <span className="navbar__link-hover"></span>
          </Link>
        </li>
        <li>
          <Link
            to="/login"
            className={`navbar__link ${
              activeLink === "/login" ? "navbar__link--active" : ""
            }`}
          >
            <span className="navbar__link-icon">🔒</span>
            <span className="navbar__link-text">LOGIN</span>
            <span className="navbar__link-hover"></span>
          </Link>
        </li>
      </ul>
    </nav>
  );
};

export default Navbar;
//{user ? user.displayName : "NOTEBOOK"}