lumina/components/headerComponents/TopNavigation.tsx

"use client";

import { siteConfig } from "@/config/site";
import { useEffect, useState } from "react";
import { TopNavigationItems } from "./TopNavigationItems";
import { DropdownThemeMode } from "./DropdownThemeMode";
import LoginButton from "./LoginButton";
import { Button } from "../ui/button";
import { AvatarDropdown } from "./AvatarDropdown";
import RegisterButton from "./RegisterButton";

export function TopNavigation() {
  const [pubkey, setPubkey] = useState<string | null>(null);
  const [mounted, setMounted] = useState(false);

  useEffect(() => {
    setMounted(true);
    setPubkey(window.localStorage.getItem('pubkey'));
  }, []);

  // Prevent hydration mismatch by not rendering auth-dependent content until mounted
  if (!mounted) {
    return (
      <header className="bg-background/80 sticky top-0 z-40 w-full border-b backdrop-blur">
        <div className="container flex h-16 items-center space-x-4 sm:justify-between sm:space-x-0">
          <TopNavigationItems items={siteConfig.mainNav} />
          <div className="flex flex-1 items-center justify-end space-x-4">
            <nav className="flex items-center space-x-2">
              <DropdownThemeMode />
            </nav>
          </div>
        </div>
      </header>
    );
  }

  return (
    <header className="bg-background/80 sticky top-0 z-40 w-full border-b backdrop-blur">
      <div className="container flex h-16 items-center space-x-4 sm:justify-between sm:space-x-0">
        <TopNavigationItems items={siteConfig.mainNav} />
        <div className="flex flex-1 items-center justify-end space-x-4">
          <nav className="flex items-center space-x-2">
            <DropdownThemeMode />
            {pubkey === null ? <RegisterButton /> : null}
            {pubkey === null ? <LoginButton /> : null}
            {pubkey !== null ? <AvatarDropdown /> : null}
          </nav>
        </div>
      </div>
    </header>
  )
}