AsterionWP2026/wp-content/themes/asterion-bricks/functions.php

<?php
/**
 * Asterion Bricks — child theme bootstrap
 *
 * Loads design tokens, utilities, components, and main JS in a deterministic
 * order. Registers theme support, image sizes, and includes modular pieces
 * (custom post types, SEO schemas).
 *
 * @package AsterionBricks
 * @since   0.1.0
 */

defined('ABSPATH') || exit;

define('AV_THEME_VERSION', '0.1.0');
define('AV_THEME_DIR', get_stylesheet_directory());
define('AV_THEME_URI', get_stylesheet_directory_uri());

/**
 * Enqueue child theme styles and scripts.
 *
 * Bricks parent stylesheet is loaded by the parent theme itself — no need to
 * re-enqueue. We layer our tokens → utilities → components on top.
 *
 * Cache busting via `filemtime()` so dev changes are picked up without manual
 * version bumps. In production, swap to AV_THEME_VERSION + a build step.
 */
add_action('wp_enqueue_scripts', function () {
    $css_dir  = AV_THEME_DIR . '/assets/css';
    $css_uri  = AV_THEME_URI . '/assets/css';
    $js_dir   = AV_THEME_DIR . '/assets/js';
    $js_uri   = AV_THEME_URI . '/assets/js';

    if (file_exists($css_dir . '/tokens.css')) {
        wp_enqueue_style(
            'av-tokens',
            $css_uri . '/tokens.css',
            [],
            filemtime($css_dir . '/tokens.css')
        );
    }

    if (file_exists($css_dir . '/utilities.css')) {
        wp_enqueue_style(
            'av-utilities',
            $css_uri . '/utilities.css',
            ['av-tokens'],
            filemtime($css_dir . '/utilities.css')
        );
    }

    if (file_exists($css_dir . '/components.css')) {
        wp_enqueue_style(
            'av-components',
            $css_uri . '/components.css',
            ['av-tokens', 'av-utilities'],
            filemtime($css_dir . '/components.css')
        );
    }

    if (file_exists($js_dir . '/main.js')) {
        wp_enqueue_script(
            'av-main',
            $js_uri . '/main.js',
            [],
            filemtime($js_dir . '/main.js'),
            ['strategy' => 'defer', 'in_footer' => true]
        );
    }
}, 20);

/**
 * Preload self-hosted Inter fonts to reduce LCP.
 *
 * Only emits <link rel="preload"> for fonts that actually exist on disk —
 * silent during early dev when the WOFF2 files have not been dropped yet.
 */
add_action('wp_head', function () {
    $fonts = [
        'Inter-Variable.woff2',
        // 'InterDisplay-Variable.woff2',
    ];

    foreach ($fonts as $font) {
        $path = AV_THEME_DIR . '/assets/fonts/' . $font;
        if (file_exists($path)) {
            printf(
                '<link rel="preload" href="%s/assets/fonts/%s" as="font" type="font/woff2" crossorigin>' . "\n",
                esc_url(AV_THEME_URI),
                esc_attr($font)
            );
        }
    }
}, 1);

/**
 * Modular includes.
 *
 * Each file is opt-in via file_exists() so partial scaffolds don't fatal.
 */
$av_includes = [
    'inc/cpt.php', // Custom post types: case_study, scenario.
    'inc/seo.php', // Schema.org JSON-LD overrides.
];

foreach ($av_includes as $av_include) {
    $path = AV_THEME_DIR . '/' . $av_include;
    if (file_exists($path)) {
        require_once $path;
    }
}
unset($av_include, $path);

/**
 * Theme support and custom image sizes.
 *
 * Image sizes per Design Handoff section 8.3:
 *   - hero  2400×1350 (16:9)
 *   - card   800×600  (4:3)
 *   - thumb  400×300  (4:3)
 */
add_action('after_setup_theme', function () {
    add_theme_support('post-thumbnails');
    add_theme_support('html5', [
        'search-form', 'comment-form', 'comment-list',
        'gallery', 'caption', 'style', 'script',
    ]);
    add_theme_support('responsive-embeds');
    add_theme_support('align-wide');
    add_theme_support('editor-styles');

    add_image_size('av-hero',  2400, 1350, true);
    add_image_size('av-card',   800,  600, true);
    add_image_size('av-thumb',  400,  300, true);

    load_child_theme_textdomain('asterion-bricks', AV_THEME_DIR . '/languages');
});

/**
 * Hide the WP admin bar on frontend for non-admins (cleaner preview screenshots).
 */
add_action('after_setup_theme', function () {
    if (! current_user_can('administrator')) {
        show_admin_bar(false);
    }
});

/**
 * Disable Gutenberg block library default styles when Bricks is active —
 * we own typography end-to-end through tokens.css.
 */
add_action('wp_enqueue_scripts', function () {
    wp_dequeue_style('wp-block-library');
    wp_dequeue_style('wp-block-library-theme');
    wp_dequeue_style('global-styles');
    wp_dequeue_style('classic-theme-styles');
}, 100);