---
// src/components/Navbar.astro
import { FaBars, FaTimes } from 'react-icons/fa';
import { loadWaasConfigs } from '../utils/configLoader';

const { siteConfig } = loadWaasConfigs();
const header = siteConfig.header || {
  brandName: 'N&D',
  brandHighlight: 'i-t SOLUTIONS',
  ctaText: 'Erstgespräch buchen',
  ctaLink: '#contact',
  showThemeToggle: true,
  glassEffect: true
};
---

<header id="main-header" class={`fixed top-0 left-0 w-full z-50 transition-all duration-300 py-3 ${header.glassEffect !== false ? 'bg-white/30 dark:bg-brand-darkBg/30 backdrop-blur-xl border-b border-slate-200 dark:border-brand-darkBorder' : 'bg-slate-900 border-b border-white/10'}`}>
  <div class="max-w-7xl mx-auto px-4 sm:px-6 lg:px-8">
    <div class="flex items-center justify-between h-14">
      
      <!-- Logo -->
      <a href="#" class="flex items-center gap-2 group">
        <span class="text-lg sm:text-xl font-bold tracking-wider text-slate-900 dark:text-white select-none transition-colors duration-300">
          {header.brandName || 'N&D'} <span class="text-brand-arcticBlue">{header.brandHighlight || 'i-t SOLUTIONS'}</span>
        </span>
      </a>

      <!-- Desktop Nav Links -->
      <nav class="hidden md:flex items-center gap-8">
        <a href="#services" class="text-xs tracking-wider uppercase font-medium text-slate-600 dark:text-zinc-400 hover:text-brand-arcticBlue dark:hover:text-brand-arcticBlue transition-colors">Leistungen</a>
        <a href="#tech" class="text-xs tracking-wider uppercase font-medium text-slate-600 dark:text-zinc-400 hover:text-brand-arcticBlue dark:hover:text-brand-arcticBlue transition-colors">Tech-Stack</a>
        <a href="#concept" class="text-xs tracking-wider uppercase font-medium text-slate-600 dark:text-zinc-400 hover:text-brand-arcticBlue dark:hover:text-brand-arcticBlue transition-colors">Ablauf</a>
      </nav>

      <!-- Right controls -->
      <div class="flex items-center gap-4">
        {header.showThemeToggle !== false && (
          <!-- Theme Toggle Button (44x44px target) -->
          <button id="theme-toggle" class="w-11 h-11 flex items-center justify-center rounded-lg border border-slate-200 dark:border-brand-darkBorder bg-white/50 dark:bg-zinc-900/50 text-slate-700 dark:text-zinc-400 hover:text-brand-arcticBlue dark:hover:text-brand-arcticBlue transition-all duration-200 focus:outline-none focus:ring-2 focus:ring-sky-500" aria-label="Farbschema wechseln">
            <!-- Moon Icon -->
            <svg id="theme-toggle-dark-icon" class="hidden w-4 h-4 fill-current" viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg" aria-hidden="true">
              <path d="M17.293 13.293A8 8 0 016.707 2.707a8.001 8.001 0 1010.586 10.586z"></path>
            </svg>
            <!-- Sun Icon -->
            <svg id="theme-toggle-light-icon" class="hidden w-4 h-4 fill-current" viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg" aria-hidden="true">
              <path d="M10 2a1 1 0 011 1v1a1 1 0 11-2 0V3a1 1 0 011-1zm4 8a4 4 0 11-8 0 4 4 0 018 0zm-.464 4.95l.707.707a1 1 0 001.414-1.414l-.707-.707a1 1 0 00-1.414 1.414zm2.12-10.607a1 1 0 010 1.414l-.707.707a1 1 0 01-1.414-1.414l.707-.707a1 1 0 011.414 0zM17 11a1 1 0 100-2h-1a1 1 0 100 2h1zm-7 4a1 1 0 011 1v1a1 1 0 11-2 0v-1a1 1 0 011-1zM5.05 6.464A1 1 0 106.46 5.05l-.707-.707a1 1 0 00-1.414 1.414l.707.707zm1.414 8.486l-.707.707a1 1 0 01-1.414-1.414l.707-.707a1 1 0 011.414 1.414zM4 11a1 1 0 100-2H3a1 1 0 000 2h1z" fill-rule="evenodd" clip-rule="evenodd"></path>
            </svg>
          </button>
        )}

        <!-- CTA button -->
        {header.ctaText && (
          <a href={header.ctaLink || "#contact"} class="hidden sm:inline-flex items-center justify-center px-4 py-2 text-xs font-semibold tracking-wider text-slate-700 dark:text-white border border-slate-200 dark:border-brand-darkBorder rounded bg-white/50 dark:bg-zinc-900/50 hover:border-brand-arcticBlue hover:text-brand-arcticBlue transition-all duration-200 focus:outline-none focus:ring-2 focus:ring-sky-500" aria-label={header.ctaText}>
            {header.ctaText}
          </a>
        )}

        <!-- Mobile menu button (44x44px target) -->
        <button id="mobile-menu-btn" class="md:hidden w-11 h-11 flex items-center justify-center rounded bg-white dark:bg-zinc-900 text-slate-700 dark:text-white border border-slate-200 dark:border-brand-darkBorder hover:bg-slate-50 dark:hover:bg-zinc-800 transition-all focus:outline-none focus:ring-2 focus:ring-sky-500" aria-label="Menü öffnen">
          <FaBars className="w-5 h-5" aria-hidden="true" />
        </button>
      </div>

    </div>
  </div>

  <!-- Mobile Menu Drawer -->
  <div id="mobile-menu" class="fixed inset-0 z-50 bg-white dark:bg-brand-darkBg backdrop-blur-xl md:hidden translate-x-full transition-transform duration-300 ease-in-out">
    <div class="flex justify-between items-center p-6 border-b border-slate-200 dark:border-brand-darkBorder">
      <span class="text-lg font-bold tracking-wider text-slate-900 dark:text-white">
        N&D <span class="text-brand-arcticBlue">i-t SOLUTIONS</span>
      </span>
      <button id="mobile-close-btn" class="p-2 rounded bg-slate-100 dark:bg-zinc-900 text-slate-700 dark:text-white hover:bg-slate-200 dark:hover:bg-zinc-800 transition-all" aria-label="Close Menu">
        <FaTimes className="w-5 h-5" aria-hidden="true" />
      </button>
    </div>
    <nav class="flex flex-col gap-6 p-8 text-center text-lg font-semibold text-slate-900 dark:text-white">
      <a href="#services" class="hover:text-brand-arcticBlue transition-colors py-2 border-b border-slate-100 dark:border-brand-darkBorder/50" id="mobile-link-1">Leistungen</a>
      <a href="#tech" class="hover:text-brand-arcticBlue transition-colors py-2 border-b border-slate-100 dark:border-brand-darkBorder/50" id="mobile-link-2">Tech-Stack</a>
      <a href="#concept" class="hover:text-brand-arcticBlue transition-colors py-2 border-b border-slate-100 dark:border-brand-darkBorder/50" id="mobile-link-3">Ablauf</a>
      <a href="#contact" class="inline-flex justify-center items-center py-2.5 bg-slate-100 dark:bg-zinc-900 text-brand-arcticBlue border border-slate-200 dark:border-brand-darkBorder font-bold rounded mt-4" id="mobile-link-4">
        Erstgespräch buchen
      </a>
    </nav>
  </div>
</header>

<script>
  // Elements
  const header = document.getElementById('main-header');
  const mobileMenuBtn = document.getElementById('mobile-menu-btn');
  const mobileCloseBtn = document.getElementById('mobile-close-btn');
  const mobileMenu = document.getElementById('mobile-menu');

  // Change header styling on scroll
  window.addEventListener('scroll', () => {
    if (window.scrollY > 30) {
      header?.classList.remove('bg-white/30', 'dark:bg-brand-darkBg/30');
      header?.classList.add('bg-white/80', 'dark:bg-brand-darkBg/80', 'shadow-md');
    } else {
      header?.classList.remove('bg-white/80', 'dark:bg-brand-darkBg/80', 'shadow-md');
      header?.classList.add('bg-white/30', 'dark:bg-brand-darkBg/30');
    }
  });

  // Mobile Menu open/close
  const toggleMobileMenu = () => {
    mobileMenu?.classList.toggle('translate-x-full');
  };

  mobileMenuBtn?.addEventListener('click', toggleMobileMenu);
  mobileCloseBtn?.addEventListener('click', toggleMobileMenu);

  // Close mobile menu on link click
  for (let i = 1; i <= 4; i++) {
    const link = document.getElementById(`mobile-link-${i}`);
    link?.addEventListener('click', toggleMobileMenu);
  }

  // Darkmode Toggle Logic
  const themeToggleDarkIcon = document.getElementById('theme-toggle-dark-icon');
  const themeToggleLightIcon = document.getElementById('theme-toggle-light-icon');
  const themeToggleBtn = document.getElementById('theme-toggle');

  // Set initial icon state based on DOM class
  function updateToggleIcons() {
    if (document.documentElement.classList.contains('dark')) {
      themeToggleLightIcon?.classList.remove('hidden');
      themeToggleDarkIcon?.classList.add('hidden');
    } else {
      themeToggleDarkIcon?.classList.remove('hidden');
      themeToggleLightIcon?.classList.add('hidden');
    }
  }

  updateToggleIcons();

  themeToggleBtn?.addEventListener('click', () => {
    if (document.documentElement.classList.contains('light')) {
      document.documentElement.classList.remove('light');
      document.documentElement.classList.add('dark');
      localStorage.setItem('theme', 'dark');
    } else {
      document.documentElement.classList.remove('dark');
      document.documentElement.classList.add('light');
      localStorage.setItem('theme', 'light');
    }
    updateToggleIcons();
  });
</script>