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The VertiSub theme hooks into various WordPress actions and filters to extend and customize functionality.

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Theme Setup Hooks

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after_setup_theme

The theme uses after_setup_theme to initialize theme features and register menus.

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sancho_theme_setup

Registers theme support for various WordPress features. Location: inc/setup.php:34 
function sancho_theme_setup() {
    // Add theme support for various features
    add_theme_support('title-tag');
    add_theme_support('post-thumbnails');
    add_theme_support('html5', array(
        'search-form',
        'comment-form',
        'comment-list',
        'gallery',
        'caption',
    ));

    // Add theme support for custom logo
    add_theme_support('custom-logo', array(
        'header-text' => array('site-title'),
    ));

    // Add custom image sizes
    add_image_size('hero-image', 1920, 1080, true);
    add_image_size('service-thumb', 400, 300, true);
}
add_action('after_setup_theme', 'sancho_theme_setup');

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vertisub_register_menus

Registers navigation menus for the theme. Location: inc/menu.php:167 
function vertisub_register_menus() {
    register_nav_menus(array(
        'primary_menu' => __('Menú Principal', 'vertisub'),
    ));

    register_nav_menus(array(
        'footer_menu' => __('Footer', 'vertisub'),
        'footer_empresa'   => __('Footer Empresa', 'vertisub'),
        'footer_legal'     => __('Footer Legal', 'vertisub'),
    ));
}
add_action('after_setup_theme', 'vertisub_register_menus');

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Enqueue Hooks

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wp_enqueue_scripts

Enqueues frontend scripts and stylesheets. Location: inc/enqueue.php:207 
function sancho_enqueue_assets() {
    // Enqueue Bootstrap CSS
    wp_enqueue_style(
        'bootstrap-css',
        'https://cdn.jsdelivr.net/npm/[email protected]/dist/css/bootstrap.min.css',
        array(),
        '5.3.0'
    );

    // Enqueue theme stylesheet
    wp_enqueue_style(
        'sancho-style',
        get_stylesheet_uri(),
        array('bootstrap-css'),
        wp_get_theme()->get('Version')
    );

    // Enqueue scripts
    wp_enqueue_script(
        'sancho-script',
        get_template_directory_uri() . '/script.js',
        array('jquery', 'bootstrap'),
        filemtime(get_template_directory() . '/script.js'),
        true
    );

    // Localize script for AJAX
    wp_localize_script('sancho-script', 'sancho_ajax', array(
        'ajax_url' => admin_url('admin-ajax.php'),
        'nonce'    => wp_create_nonce('sancho_nonce'),
    ));
}
add_action('wp_enqueue_scripts', 'sancho_enqueue_assets');

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admin_enqueue_scripts

Enqueues admin scripts and media uploader functionality. Location: inc/enqueue.php:257 
function vertisub_admin_assets($hook) {
    if (!is_admin()) return;
    $screen = get_current_screen();
    if (!$screen || $screen->post_type !== 'nosotros') return;

    wp_enqueue_media();
    wp_register_script('vertisub-inline', false, array('jquery'), null, true);
    wp_enqueue_script('vertisub-inline');
}
add_action('admin_enqueue_scripts', 'vertisub_admin_assets');

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Custom Post Type Hooks

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init

Used to register custom post types and custom rewrite rules. Registered Post Types: 
// Certifications
add_action('init', 'vertisub_create_certification_post_type');

// Clients
add_action('init', 'vertisub_create_team_post_type');

// Countries
add_action('init', 'vertisub_create_paises_post_type');

// Courses
add_action('init', 'vertisub_create_cursos_post_type');

// Documents
add_action('init', 'vertisub_create_documentos_post_type');

// Services
add_action('init', 'vertisub_create_servicios_post_type');

// Custom rewrite rules
add_action('init', 'vertisub_rewrite_rules');

// Performance optimizations
add_action('init', 'sancho_optimize_performance');
Example - Registering a Custom Post Type: 
function vertisub_create_servicios_post_type() {
    register_post_type(
        'servicios',
        array(
            'labels' => array(
                'name'               => 'Servicios',
                'singular_name'      => 'Servicio',
                'add_new'            => 'Añadir servicio',
            ),
            'public'      => true,
            'has_archive' => false,
            'menu_icon'   => 'dashicons-hammer',
            'supports'    => array('title', 'thumbnail', 'editor'),
            'rewrite'     => array('slug' => 'servicios'),
        )
    );
}

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Meta Box Hooks

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add_meta_boxes

Registers custom meta boxes for post types. 
// Countries meta boxes
add_action('add_meta_boxes', 'vertisub_add_paises_metaboxes');

// Courses meta boxes
add_action('add_meta_boxes', 'vertisub_cursos_metaboxes');

// Documents meta boxes
add_action('add_meta_boxes', 'vertisub_add_documentos_metaboxes');

// Services meta boxes
add_action('add_meta_boxes', 'vertisub_register_servicios_meta_boxes');
add_action('add_meta_boxes', 'vertisub_add_multimedia_metabox');
Example: 
function vertisub_register_servicios_meta_boxes() {
    add_meta_box(
        'servicios_multimedia',
        'Multimedia',
        'vertisub_servicios_multimedia_callback',
        'servicios',
        'normal',
        'default'
    );
}

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Save Post Hooks

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save_post

Saves custom meta data when posts are saved. 
// Countries
add_action('save_post', 'vertisub_save_paises_meta');

// Courses
add_action('save_post', 'vertisub_save_cursos_metabox');

// Documents
add_action('save_post', 'vertisub_save_documentos_meta');

// Services (generic)
add_action('save_post', 'vertisub_save_multimedia_meta');

// About Us extra data
add_action('save_post', 'vertisub_save_about_extra');

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save_post_

Saves post type specific meta data. 
add_action('save_post_servicios', 'vertisub_save_servicios_meta');
Example: 
function vertisub_save_servicios_meta($post_id) {
    if (array_key_exists('servicio_paises', $_POST)) {
        update_post_meta($post_id, '_servicio_paises', $_POST['servicio_paises']);
    }
}

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AJAX Hooks

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wp_ajax_

Handles AJAX requests for logged-in users. 
add_action('wp_ajax_sancho_contact', 'sancho_handle_contact_form');

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wp_ajax_nopriv_

Handles AJAX requests for non-logged-in users. 
add_action('wp_ajax_nopriv_sancho_contact', 'sancho_handle_contact_form');
Example - Contact Form Handler: 
function sancho_handle_contact_form() {
    // Verify nonce
    if (!wp_verify_nonce($_POST['nonce'], 'sancho_nonce')) {
        wp_die('Security check failed');
    }

    // Sanitize form data
    $name = sanitize_text_field($_POST['name']);
    $email = sanitize_email($_POST['email']);
    $message = sanitize_textarea_field($_POST['message']);

    // Send email
    $to = get_option('admin_email');
    $subject = 'New Contact Form Submission';
    $body = "Name: $name\nEmail: $email\nMessage: $message";

    if (wp_mail($to, $subject, $body)) {
        wp_send_json_success('Message sent successfully!');
    } else {
        wp_send_json_error('Failed to send message.');
    }
}

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Customizer Hooks

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customize_register

Registers customizer sections and controls. Location: inc/customize.php:30 
function vertisub_customize_register($wp_customize) {
    $wp_customize->add_section('vertisub_footer_logo_section', array(
        'title'       => __('Logo Footer', 'vertisub'),
        'priority'    => 30,
        'description' => 'Logo que se muestra en el footer',
    ));

    $wp_customize->add_setting('vertisub_footer_logo', array(
        'default' => '',
        'sanitize_callback' => 'esc_url_raw',
    ));

    $wp_customize->add_control(new WP_Customize_Image_Control($wp_customize, 'vertisub_footer_logo', array(
        'label'    => __('Subir Logo Footer', 'vertisub'),
        'section'  => 'vertisub_footer_logo_section',
        'settings' => 'vertisub_footer_logo',
    )));
}
add_action('customize_register', 'vertisub_customize_register');

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Security Hooks

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send_headers

Adds security headers to HTTP responses. Location: inc/security.php:19 
function vertisub_security_headers() {
    header('X-Content-Type-Options: nosniff');
    header('X-Frame-Options: SAMEORIGIN');
    header('X-XSS-Protection: 1; mode=block');
}
add_action('send_headers', 'vertisub_security_headers');

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Filter Hooks

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query_vars

Adds custom query variables. Location: inc/cpts/services.php:257 
function vertisub_add_query_vars($vars) {
    $vars[] = 'pais_slug';
    return $vars;
}
add_filter('query_vars', 'vertisub_add_query_vars');
Modifies navigation menu link attributes. Location: inc/menu.php:190 
function vertisub_add_nav_link_class($atts, $item, $args) {
    if ($args->theme_location === 'primary_menu') {
        $atts['class'] = 'nav-link';
    }

    if ($args->theme_location === 'footer_menu' || 
        $args->theme_location === 'footer_empresa' || 
        $args->theme_location === 'footer_legal') {
        $atts['class'] = 'footer-link';
    }

    return $atts;
}
add_filter('nav_menu_link_attributes', 'vertisub_add_nav_link_class', 10, 3);
Adds custom CSS classes to menu items. Location: inc/menu.php:208 
function vertisub_add_footer_li_class($classes, $item, $args) {
    if ($args->theme_location === 'footer_menu' || 
        $args->theme_location === 'footer_empresa' || 
        $args->theme_location === 'footer_legal') {
        $classes[] = 'footer-link-item';
    }
    return $classes;
}
add_filter('nav_menu_css_class', 'vertisub_add_footer_li_class', 10, 3);

​
Performance Optimization

The theme removes unnecessary WordPress features to improve performance: 
function sancho_optimize_performance() {
    // Remove unnecessary WordPress features
    remove_action('wp_head', 'wp_generator');
    remove_action('wp_head', 'wlwmanifest_link');
    remove_action('wp_head', 'rsd_link');

    // Disable emojis
    remove_action('wp_head', 'print_emoji_detection_script', 7);
    remove_action('wp_print_styles', 'print_emoji_styles');
}
add_action('init', 'sancho_optimize_performance');

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