<?php

function guidelondres_setup() {
    // Add theme support
    add_theme_support('title-tag');
    add_theme_support('post-thumbnails');
    add_theme_support('menus');
    add_theme_support('woocommerce');
    add_theme_support('wc-product-gallery-zoom');
    add_theme_support('wc-product-gallery-lightbox');
    add_theme_support('wc-product-gallery-slider');
    add_theme_support('custom-logo', array(
        'height'      => 120,
        'width'       => 320,
        'flex-height' => true,
        'flex-width'  => true,
    ));

    // Register Navigation Menus
    register_nav_menus(array(
        'primary' => __('Menu Principal', 'guidelondres'),
        'footer'  => __('Menu Footer', 'guidelondres'),
    ));
}
add_action('after_setup_theme', 'guidelondres_setup');

add_filter('woocommerce_single_product_zoom_enabled', '__return_true');
add_filter('woocommerce_single_product_photoswipe_enabled', '__return_true');
add_filter('woocommerce_single_product_flexslider_enabled', '__return_true');

function guidelondres_get_ga_tracking_id() {
    $options = get_option( 'gap_options' );
    if ( is_array( $options ) && ! empty( $options['gap_id'] ) ) {
        return (string) $options['gap_id'];
    }

    return '';
}

/*
function guidelondres_disable_ga_google_analytics_sync_loader() {
    if ( ! function_exists( 'ga_google_analytics_tracking_code' ) ) {
        return;
    }

    remove_action( 'wp_head', 'ga_google_analytics_tracking_code' );
    remove_action( 'wp_footer', 'ga_google_analytics_tracking_code' );
}
add_action( 'wp', 'guidelondres_disable_ga_google_analytics_sync_loader', 1 );

function guidelondres_deferred_ga_loader() {
    if ( is_admin() ) {
        return;
    }

    $tracking_id = guidelondres_get_ga_tracking_id();
    if ( '' === $tracking_id ) {
        return;
    }
    ?>
    <script>
    (function () {
        var loaded = false;
        function loadGA() {
            if (loaded) return;
            loaded = true;

            window.dataLayer = window.dataLayer || [];
            window.gtag = function(){ dataLayer.push(arguments); };
            window.gtag('js', new Date());
            window.gtag('config', <?php echo wp_json_encode( $tracking_id ); ?>, { anonymize_ip: true });

            var s = document.createElement('script');
            s.src = <?php echo wp_json_encode( 'https://www.googletagmanager.com/gtag/js?id=' . rawurlencode( $tracking_id ) ); ?>;
            s.async = true;
            document.head.appendChild(s);
        }

        if ('requestIdleCallback' in window) {
            requestIdleCallback(loadGA, { timeout: 4000 });
        } else {
            setTimeout(loadGA, 3000);
        }

        ['scroll', 'click', 'keydown', 'touchstart'].forEach(function(evt){
            window.addEventListener(evt, loadGA, { once: true, passive: true });
        });
    })();
    </script>
    <?php
}
add_action( 'wp_footer', 'guidelondres_deferred_ga_loader', 20 );
*/

function guidelondres_resource_hints( $urls, $relation_type ) {
    $is_mobile_home = ! is_admin() && is_front_page() && wp_is_mobile();

    if ( $is_mobile_home ) {
        return $urls;
    }

    if ( 'preconnect' === $relation_type ) {
        $urls[] = array(
            'href'        => 'https://fonts.googleapis.com',
            'crossorigin' => '',
        );
        $urls[] = array(
            'href'        => 'https://fonts.gstatic.com',
            'crossorigin' => '',
        );
    }

    return $urls;
}
add_filter( 'wp_resource_hints', 'guidelondres_resource_hints', 10, 2 );

function guidelondres_non_blocking_google_fonts( $html, $handle, $href, $media ) {
    if ( 'guidelondres-fonts' !== $handle ) {
        return $html;
    }

    if ( ! is_admin() && is_front_page() && wp_is_mobile() ) {
        return '';
    }

    return "<link rel='preload' href='" . esc_url( $href ) . "' as='style' onload=\"this.onload=null;this.rel='stylesheet'\" />\n"
        . "<noscript><link rel='stylesheet' href='" . esc_url( $href ) . "' /></noscript>\n";
}
add_filter( 'style_loader_tag', 'guidelondres_non_blocking_google_fonts', 10, 4 );

function guidelondres_scripts() {
    $is_mobile_home = is_front_page() && wp_is_mobile();

    // Enqueue main theme stylesheet so WordPress always has a local CSS file to load.
    wp_enqueue_style('guidelondres-style', get_stylesheet_uri(), array(), filemtime(get_stylesheet_directory() . '/style.css'));
    wp_enqueue_style(
        'guidelondres-tailwind',
        get_template_directory_uri() . '/assets/css/tailwind.css',
        array(),
        filemtime(get_template_directory() . '/assets/css/tailwind.css')
    );

    if ( ! $is_mobile_home ) {
        // Enqueue Google Fonts
        wp_enqueue_style('guidelondres-fonts', 'https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Playfair+Display:wght@400;700;800&display=swap', array(), null);
    }

    wp_enqueue_script(
        'guidelondres-header',
        get_template_directory_uri() . '/assets/js/header.js',
        array(),
        filemtime(get_template_directory() . '/assets/js/header.js'),
        true
    );

    if ( is_front_page() && ! $is_mobile_home ) {
        wp_enqueue_script(
            'guidelondres-front-page',
            get_template_directory_uri() . '/assets/js/front-page.js',
            array(),
            filemtime(get_template_directory() . '/assets/js/front-page.js'),
            true
        );
    }

    if ( function_exists('is_product') && is_product() ) {
        wp_enqueue_script(
            'guidelondres-product',
            get_template_directory_uri() . '/assets/js/product.js',
            array(),
            filemtime(get_template_directory() . '/assets/js/product.js'),
            true
        );
    }
}
add_action('wp_enqueue_scripts', 'guidelondres_scripts');

function guidelondres_front_page_resource_hints() {
    if ( ! is_front_page() ) {
        return;
    }

    $is_mobile_home = wp_is_mobile();
    $hero_lcp_480   = esc_url( home_url('/wp-content/uploads/2025/04/london-bg-3-480x320.webp') );
    $hero_lcp_640   = esc_url( home_url('/wp-content/uploads/2025/04/london-bg-3-640x427.webp') );
    $hero_lcp_768   = esc_url( home_url('/wp-content/uploads/2025/04/london-bg-3-768x512.webp') );

    if ( $is_mobile_home ) {
        $imagesrcset_mobile = $hero_lcp_480 . ' 480w, ' . $hero_lcp_640 . ' 640w';
        echo '<link rel="preload" as="image" href="' . $hero_lcp_640 . '" imagesrcset="' . esc_attr( $imagesrcset_mobile ) . '" imagesizes="100vw" fetchpriority="high" />' . "\n";
        return;
    }

    $imagesrcset_desktop = $hero_lcp_640 . ' 640w, ' . $hero_lcp_768 . ' 768w';
    echo '<link rel="preload" as="image" href="' . $hero_lcp_768 . '" imagesrcset="' . esc_attr( $imagesrcset_desktop ) . '" imagesizes="100vw" fetchpriority="high" />' . "\n";
}
add_action('wp_head', 'guidelondres_front_page_resource_hints', 1);

function guidelondres_primary_menu_fallback() {
    echo '<ul class="hidden md:flex gap-5 text-sm uppercase tracking-widest font-medium">';

    if ( is_front_page() ) {
        echo '<li><a href="#activites" class="text-offwhite hover:text-gold transition-colors">Activités</a></li>';
        echo '<li><a href="#visites" class="text-offwhite hover:text-gold transition-colors">Visites</a></li>';
        echo '<li><a href="#guide" class="text-offwhite hover:text-gold transition-colors">Guide</a></li>';
    } else {
        echo '<li><a href="' . esc_url( home_url('/#activites') ) . '" class="text-offwhite hover:text-gold transition-colors">Activités</a></li>';
        echo '<li><a href="' . esc_url( home_url('/#visites') ) . '" class="text-offwhite hover:text-gold transition-colors">Visites</a></li>';
    }

    $blog_url = get_permalink( get_option('page_for_posts') ) ?: home_url('/blog');
    echo '<li><a href="' . esc_url( $blog_url ) . '" class="text-offwhite hover:text-gold transition-colors">Blog</a></li>';
    echo '</ul>';
}

function guidelondres_primary_menu_link_classes( $atts, $item, $args ) {
    if ( empty( $args->theme_location ) || 'primary' !== $args->theme_location ) {
        return $atts;
    }

    $is_sub_item = ! empty( $item->menu_item_parent );
    $classes = $is_sub_item
        ? 'text-navy hover:text-gold transition-colors'
        : 'text-offwhite hover:text-gold transition-colors';
    if ( ! empty( $item->current ) || ! empty( $item->current_item_ancestor ) ) {
        $classes = 'text-gold ' . $classes;
    }

    $atts['class'] = $classes;
    return $atts;
}
add_filter( 'nav_menu_link_attributes', 'guidelondres_primary_menu_link_classes', 10, 3 );

function affiliate_link() {
    $affiliation = get_field("affiliation");

    if ( ! empty($affiliation) ) {
        ?>
<div style="text-align:center;"><a href="<?php echo $affiliation; ?>" style="
    font-size: 30px;
    padding: 0px 20px 2px 20px;
    background-color: #030303;
    line-height: 1.1;
    color: #fff;
    font-weight: 400;
    text-decoration: none;
    border: 0;
    border-radius: 5px;
    margin-bottom:10px;
    outline: 0;" target="_blank">Voir les Prix</a></div>
<?php
    }
}

add_shortcode('subscribe', 'affiliate_link');

add_shortcode( 'product_description', 'display_product_description' );
function display_product_description( $atts ){
    $atts = shortcode_atts( array(
        'id' => get_the_id(),
    ), $atts, 'product_description' );

    $product = wc_get_product( $atts['id'] );

    if ( ! $product ) {
        return '';
    }

    return $product->get_description();
}

function remove_add_to_cart_on_shop_category_page() {
    if ( is_shop() || is_product_category() ) {
        return;
    }
}

add_filter( 'woocommerce_loop_add_to_cart_link', 'remove_add_to_cart_on_shop_category_page');

add_filter( 'get_avatar_url', 'custom_default_avatar_url', 10, 3 );

function custom_default_avatar_url( $url, $id_or_email, $args ) {
    $local_file = get_template_directory() . '/images/default-avatar.jpg';
    if ( file_exists( $local_file ) ) {
        return get_template_directory_uri() . '/images/default-avatar.jpg';
    }
    return $url;
}

if ( ! function_exists("guidelondres_cleanup_head_assets") ) {
    function guidelondres_cleanup_head_assets() {
        if ( is_admin() ) {
            return;
        }

        // Remove block/editor related front CSS for this classic theme.
        wp_dequeue_style("wp-block-library");
        wp_dequeue_style("wp-block-library-theme");
        wp_dequeue_style("classic-theme-styles");
        wp_dequeue_style("global-styles");
    }
}
add_action("wp_enqueue_scripts", "guidelondres_cleanup_head_assets", 100);

if ( ! function_exists("guidelondres_optimize_front_page_woocommerce_assets") ) {
    function guidelondres_optimize_front_page_woocommerce_assets() {
        if ( is_admin() || ! is_front_page() ) {
            return;
        }

        $is_mobile_home = wp_is_mobile();

        wp_dequeue_style( 'woocommerce-layout' );
        wp_dequeue_style( 'woocommerce-smallscreen' );
        wp_dequeue_style( 'woocommerce-general' );
        wp_dequeue_style( 'wc-blocks-style' );
        wp_dequeue_style( 'woocommerce-inline' );
        wp_deregister_style( 'wc-blocks-style' );
        wp_deregister_style( 'woocommerce-inline' );

        wp_dequeue_script( 'wc-add-to-cart' );
        wp_dequeue_script( 'woocommerce' );
        wp_dequeue_script( 'wc-cart-fragments' );
        wp_dequeue_script( 'js-cookie' );
        wp_dequeue_script( 'sourcebuster-js' );
        wp_dequeue_script( 'wc-order-attribution' );

        if ( $is_mobile_home ) {
            wp_dequeue_style( 'universal-form' );
            wp_dequeue_style( 'universal-form-css' );
            wp_deregister_style( 'universal-form' );
            wp_deregister_style( 'universal-form-css' );
        }
    }
}
add_action( 'wp_enqueue_scripts', 'guidelondres_optimize_front_page_woocommerce_assets', 9999 );
add_action( 'wp_print_styles', 'guidelondres_optimize_front_page_woocommerce_assets', 9999 );
add_action( 'wp_print_scripts', 'guidelondres_optimize_front_page_woocommerce_assets', 9999 );

if ( ! function_exists("guidelondres_disable_woo_front_css_on_home") ) {
    function guidelondres_disable_woo_front_css_on_home( $styles ) {
        if ( is_admin() || ! is_front_page() ) {
            return $styles;
        }

        return array();
    }
}
add_filter( 'woocommerce_enqueue_styles', 'guidelondres_disable_woo_front_css_on_home', 9999 );

if ( ! function_exists("guidelondres_strip_home_non_critical_style_tags") ) {
    function guidelondres_strip_home_non_critical_style_tags( $html, $handle ) {
        if ( is_admin() || ! is_front_page() ) {
            return $html;
        }

        $blocked = array(
            'wc-blocks-style',
            'woocommerce-layout',
            'woocommerce-smallscreen',
            'woocommerce-general',
            'woocommerce-inline',
        );

        if ( wp_is_mobile() ) {
            $blocked[] = 'universal-form';
            $blocked[] = 'universal-form-css';
        }

        if ( in_array( $handle, $blocked, true ) ) {
            return '';
        }

        return $html;
    }
}
add_filter( 'style_loader_tag', 'guidelondres_strip_home_non_critical_style_tags', 9999, 2 );

if ( ! function_exists("guidelondres_dynamic_style_version") ) {
    function guidelondres_dynamic_style_version( $src, $handle ) {
        $url_path = wp_parse_url( $src, PHP_URL_PATH );
        if ( empty( $url_path ) ) {
            return $src;
        }

        // Skip external hosts and keep only local styles.
        $asset_host = wp_parse_url( $src, PHP_URL_HOST );
        $site_host  = wp_parse_url( home_url(), PHP_URL_HOST );
        if ( ! empty( $asset_host ) && ! empty( $site_host ) && strtolower( $asset_host ) !== strtolower( $site_host ) ) {
            return $src;
        }

        $file_path = ABSPATH . ltrim( $url_path, "/" );
        if ( ! file_exists( $file_path ) || is_dir( $file_path ) ) {
            return $src;
        }

        return add_query_arg(
            "ver",
            (string) filemtime( $file_path ),
            remove_query_arg( "ver", $src )
        );
    }
}
add_filter( "style_loader_src", "guidelondres_dynamic_style_version", 9999, 2 );

if ( ! function_exists( 'guidelondres_get_public_url' ) ) {
    function guidelondres_get_public_url( $path_candidates, $fallback = '' ) {
        foreach ( (array) $path_candidates as $path ) {
            $path = trim( (string) $path, '/' );
            if ( '' === $path ) {
                continue;
            }

            $page = get_page_by_path( $path );
            if ( $page instanceof WP_Post && 'publish' === $page->post_status ) {
                return get_permalink( $page );
            }

            $post = get_posts(
                array(
                    'name'           => $path,
                    'post_type'      => 'post',
                    'post_status'    => 'publish',
                    'posts_per_page' => 1,
                )
            );

            if ( ! empty( $post ) ) {
                return get_permalink( $post[0] );
            }
        }

        return $fallback ? esc_url_raw( $fallback ) : home_url( '/' );
    }
}

if ( ! function_exists( 'guidelondres_get_category_url' ) ) {
    function guidelondres_get_category_url( $slug, $fallback = '' ) {
        $term = get_term_by( 'slug', $slug, 'category' );
        if ( $term && ! is_wp_error( $term ) ) {
            return get_term_link( $term );
        }

        return $fallback ? esc_url_raw( $fallback ) : home_url( '/' );
    }
}

if ( ! function_exists( 'guidelondres_should_noindex_current_view' ) ) {
    function guidelondres_should_noindex_current_view() {
        if ( is_search() || is_404() ) {
            return true;
        }

        if ( is_page( array( 'vente', 'test-100' ) ) ) {
            return true;
        }

        return false;
    }
}

if ( ! function_exists( 'guidelondres_fallback_meta_description_text' ) ) {
    function guidelondres_fallback_meta_description_text() {
        if ( is_front_page() ) {
            return 'Guide premium en francais pour organiser un voyage a Londres : attractions, quartiers, transports, billets, budget et conseils pratiques.';
        }

        if ( is_home() ) {
            return 'Tous nos articles pour preparer un sejour a Londres : visites, transports, hotels, bons plans et idees d itineraires.';
        }

        if ( is_category() ) {
            $term = get_queried_object();
            if ( $term instanceof WP_Term ) {
                return sprintf(
                    'Selection d articles utiles pour %s : conseils pratiques, idees de visites, budget, transport et bons plans a Londres.',
                    wp_strip_all_tags( $term->name )
                );
            }
        }

        if ( is_singular() ) {
            $post = get_queried_object();
            if ( ! ( $post instanceof WP_Post ) ) {
                return '';
            }

            $manual_description = get_post_meta( $post->ID, 'rank_math_description', true );
            if ( ! empty( $manual_description ) ) {
                return '';
            }

            if ( has_excerpt( $post ) ) {
                $description = wp_strip_all_tags( get_the_excerpt( $post ), true );
            } else {
                $description = wp_strip_all_tags( strip_shortcodes( $post->post_content ), true );
            }

            return wp_trim_words( preg_replace( '/\s+/', ' ', $description ), 28, '' );
        }

        return '';
    }
}

if ( ! function_exists( 'guidelondres_rank_math_description_fallback' ) ) {
    function guidelondres_rank_math_description_fallback( $description ) {
        if ( ! empty( $description ) ) {
            return $description;
        }

        return guidelondres_fallback_meta_description_text();
    }
}
add_filter( 'rank_math/frontend/description', 'guidelondres_rank_math_description_fallback' );

if ( ! function_exists( 'guidelondres_rank_math_robots_override' ) ) {
    function guidelondres_rank_math_robots_override( $robots ) {
        if ( guidelondres_should_noindex_current_view() ) {
            return array( 'noindex', 'nofollow' );
        }

        return $robots;
    }
}
add_filter( 'rank_math/frontend/robots', 'guidelondres_rank_math_robots_override' );

if ( ! function_exists( 'guidelondres_limit_archive_posts_per_page' ) ) {
    function guidelondres_limit_archive_posts_per_page( $query ) {
        if ( is_admin() || ! $query->is_main_query() ) {
            return;
        }

        if ( $query->is_search() || $query->is_author() ) {
            $query->set( 'posts_per_page', 12 );
        }
    }
}
add_action( 'pre_get_posts', 'guidelondres_limit_archive_posts_per_page' );

if ( ! function_exists( 'guidelondres_meta_description_fallback_tag' ) ) {
    function guidelondres_meta_description_fallback_tag() {
        if ( defined( 'RANK_MATH_VERSION' ) ) {
            return;
        }

        if ( ! empty( get_post_meta( get_queried_object_id(), 'rank_math_description', true ) ) ) {
            return;
        }

        $description = guidelondres_fallback_meta_description_text();
        if ( empty( $description ) ) {
            return;
        }

        echo '<meta name="description" content="' . esc_attr( $description ) . "\" />\n";
    }
}
add_action( 'wp_head', 'guidelondres_meta_description_fallback_tag', 8 );