document.addEventListener('DOMContentLoaded', function() {
  const themeToggle = document.getElementById('theme-toggle');

  if (!themeToggle) {
    return;
  }

  themeToggle.addEventListener('click', function(e) {
    e.preventDefault();

    // Get current theme from html element
    const htmlElement = document.documentElement;
    const isDark = htmlElement.classList.contains('theme-dark');
    const newTheme = isDark ? 'light' : 'dark';

    // Remove both theme classes
    htmlElement.classList.remove('theme-light', 'theme-dark');

    // Add the new theme class
    htmlElement.classList.add(`theme-${newTheme}`);

    // Update article type badge colors
    const badges = document.querySelectorAll('[data-theme-dark-color]');
    badges.forEach(badge => {
      if (newTheme === 'dark') {
        const darkColor = badge.getAttribute('data-theme-dark-color');
        badge.style.color = darkColor;
        badge.style.backgroundColor = darkColor + '20';
      } else {
        const lightColor = badge.style.color; // Already set to light in HTML
        badge.style.color = lightColor;
        // backgroundColor stays as is (light color with opacity)
      }
    });

    // Persist to localStorage
    localStorage.setItem('theme', newTheme);

    // Update Feather Icons if available
    if (window.feather) {
      window.feather.replace();
    }
  });
});