functions.php

<?php
/**
 * WM Base Theme Functions
 *
 * @package WM_Base_Theme
 */

if (!defined('ABSPATH')) {
  exit; // Exit if accessed directly.
}

/**
 * Theme version
 */
define('WM_THEME_VERSION', '1.0.0');
define('WM_THEME_PATH', get_template_directory());
define('WM_THEME_URI', get_template_directory_uri());

/**
 * Theme setup
 */
function wm_theme_setup() {
  // Add theme support
  add_theme_support('automatic-feed-links');
  add_theme_support('title-tag');
  add_theme_support('post-thumbnails');
  add_theme_support('html5', array(
    'search-form',
    'comment-form',
    'comment-list',
    'gallery',
    'caption',
    'style',
    'script',
  ));
  add_theme_support('custom-logo');
  add_theme_support('responsive-embeds');
  add_theme_support('align-wide');
  add_theme_support('editor-styles');
  add_editor_style('dist/css/main.css');

  // Register navigation menus
  register_nav_menus(array(
    'primary' => __('Primary Menu', 'wm-base-theme'),
    'footer' => __('Footer Menu', 'wm-base-theme'),
  ));

  // Set content width
  $GLOBALS['content_width'] = 1200;
}
add_action('after_setup_theme', 'wm_theme_setup');

/**
 * Load and cache the Vite asset manifest.
 * Cached in a transient keyed by file modification time — auto-invalidates on rebuild.
 */
function wm_get_manifest(): ?array {
  $manifest_path = WM_THEME_PATH . '/dist/.vite/manifest.json';

  if (!file_exists($manifest_path)) {
    return null;
  }

  $mtime = filemtime($manifest_path);
  $cache_key = 'wm_manifest_' . $mtime;
  $cached = get_transient($cache_key);

  if ($cached !== false) {
    return $cached;
  }

  $manifest = json_decode(file_get_contents($manifest_path), true);
  set_transient($cache_key, $manifest, DAY_IN_SECONDS);

  return $manifest;
}

/**
 * Enqueue scripts and styles
 */
function wm_enqueue_assets() {
  $manifest = wm_get_manifest();

  if (!$manifest) {
    if (defined('WP_DEBUG') && WP_DEBUG) {
      add_action('admin_notices', function () {
        echo '<div class="notice notice-error"><p><strong>WM Theme:</strong> Asset manifest not found. Run <code>npm run build</code> to generate <code>dist/.vite/manifest.json</code>.</p></div>';
      });
    }
    return;
  }

  // Enqueue main stylesheet
  $css_entry = $manifest['src/assets/styles/main.scss'] ?? null;
  if ($css_entry && isset($css_entry['file'])) {
    wp_enqueue_style(
      'wm-main-style',
      WM_THEME_URI . '/dist/' . $css_entry['file'],
      array(),
      WM_THEME_VERSION
    );
  }

  // Enqueue main script
  $js_entry = $manifest['src/assets/scripts/main.ts'] ?? null;
  if ($js_entry && isset($js_entry['file'])) {
    wp_enqueue_script(
      'wm-main-script',
      WM_THEME_URI . '/dist/' . $js_entry['file'],
      array(),
      WM_THEME_VERSION,
      true
    );
  }

  // Localize script for WordPress data
  wp_localize_script('wm-main-script', 'wmTheme', array(
    'ajaxUrl' => admin_url('admin-ajax.php'),
    'nonce' => wp_create_nonce('wm-theme-nonce'),
    'themeUri' => WM_THEME_URI,
  ));
}
add_action('wp_enqueue_scripts', 'wm_enqueue_assets');

/**
 * Enqueue admin assets
 */
function wm_enqueue_admin_assets($hook) {
  $manifest = wm_get_manifest();

  if ($manifest && isset($manifest['src/assets/scripts/admin.ts'])) {
    $js_file = $manifest['src/assets/scripts/admin.ts'];
    wp_enqueue_script(
      'wm-admin-script',
      WM_THEME_URI . '/dist/' . $js_file['file'],
      array(),
      WM_THEME_VERSION,
      true
    );
  }
}
add_action('admin_enqueue_scripts', 'wm_enqueue_admin_assets');

/**
 * Add favicon links
 */
function wm_add_favicon() {
  $favicon_path = WM_THEME_URI . '/imgs/favicons';
  
  // Check if favicon files exist and add them
  $favicon_ico = WM_THEME_PATH . '/imgs/favicons/favicon.ico';
  $favicon_png = WM_THEME_PATH . '/imgs/favicons/favicon.png';
  $favicon_svg = WM_THEME_PATH . '/imgs/favicons/favicon.svg';
  $apple_touch = WM_THEME_PATH . '/imgs/favicons/apple-touch-icon.png';
  
  // Standard favicon
  if (file_exists($favicon_ico)) {
    echo '<link rel="icon" type="image/x-icon" href="' . esc_url($favicon_path . '/favicon.ico') . '">' . "\n";
  }
  
  // PNG favicon (modern browsers)
  if (file_exists($favicon_png)) {
    echo '<link rel="icon" type="image/png" sizes="32x32" href="' . esc_url($favicon_path . '/favicon.png') . '">' . "\n";
  }
  
  // SVG favicon (modern browsers)
  if (file_exists($favicon_svg)) {
    echo '<link rel="icon" type="image/svg+xml" href="' . esc_url($favicon_path . '/favicon.svg') . '">' . "\n";
  }
  
  // Apple Touch Icon
  if (file_exists($apple_touch)) {
    echo '<link rel="apple-touch-icon" sizes="180x180" href="' . esc_url($favicon_path . '/apple-touch-icon.png') . '">' . "\n";
  }
  
  // Web manifest (optional)
  $manifest = WM_THEME_PATH . '/imgs/favicons/site.webmanifest';
  if (file_exists($manifest)) {
    echo '<link rel="manifest" href="' . esc_url($favicon_path . '/site.webmanifest') . '">' . "\n";
  }
}
add_action('wp_head', 'wm_add_favicon', 1);

/**
 * Include theme files
 */
require_once WM_THEME_PATH . '/src/inc/theme-functions.php';
require_once WM_THEME_PATH . '/src/inc/acf-setup.php';
require_once WM_THEME_PATH . '/src/inc/block-setup.php';
require_once WM_THEME_PATH . '/src/inc/cpt-setup.php';
require_once WM_THEME_PATH . '/src/inc/woocommerce-setup.php';
require_once WM_THEME_PATH . '/src/inc/schema.php';
require_once WM_THEME_PATH . '/src/inc/react-islands.php';
require_once WM_THEME_PATH . '/src/inc/performance.php';
require_once WM_THEME_PATH . '/src/inc/breadcrumbs.php';
require_once WM_THEME_PATH . '/src/inc/customizer.php';