<?php

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


/*
 * Adjustments for the Yoast WordPress SEO Plugin
 */

if ( ! defined( 'WPSEO_VERSION' ) && ! class_exists( 'wpSEO', false ) ) {
    return;
}

if ( ! function_exists( 'avia_wpseo_register_assets' ) ) {
    function avia_wpseo_register_assets()
    {
        $screen = get_current_screen();
        $vn = avia_get_theme_version();
        $min_js = avia_minify_extension( 'js' );

        if ( is_null( $screen ) || $screen->post_type == '' ) {
            return;
        }

        wp_enqueue_script(
            'avia_analytics_js',
            AVIA_BASE_URL . "config-templatebuilder/avia-template-builder/assets/js/avia-analytics{$min_js}.js",
            [ 'avia_builder_js' ],
            $vn,
            true
        );

        wp_enqueue_script(
            'avia_yoast_seo_js',
            AVIA_BASE_URL . "config-wordpress-seo/wpseo-mod{$min_js}.js",
            [ 'avia_analytics_js' ],
            $vn,
            true
        );
    }

    if ( is_admin() ) {
        add_action( 'admin_enqueue_scripts', 'avia_wpseo_register_assets' );
    }
}


if ( ! function_exists( 'avia_wpseo_deactivate_avia_set_follow' ) ) {
    /**
     * There's no need for the default set follow function. Yoast SEO takes care of it
     * and user can set custom robot meta values for each post/page.
     *
     * @param string $meta
     * @return string
     */
    function avia_wpseo_deactivate_avia_set_follow( $meta )
    {
        return '';
    }

    add_filter( 'avf_set_follow', 'avia_wpseo_deactivate_avia_set_follow', 10, 1 );
}

if ( ! function_exists( 'avia_wpseo_change_title_adjustment' ) ) {
    /**
     * Yoast SEO takes care of the title. It uses the wp_title() hook and the output data is stored in $wptitle.
     * So just return $wptitle and leave everything else to Yoast.
     *
     * This filter has been deprecated with WP 4.1 - function _wp_render_title_tag() is used instead
     *
     * @param type $title
     * @param type $wptitle
     * @return type
     */
    function avia_wpseo_change_title_adjustment( $title, $wptitle )
    {
        return $wptitle;
    }

    add_filter( 'avf_title_tag', 'avia_wpseo_change_title_adjustment', 10, 2 );
}

if ( ! function_exists( 'avia_wpseo_pre_get_document_title_before' ) ) {
    /**
     * Checks, if we are on an ALB shop page
     *
     * @since 4.5.5
     * @return boolean
     */
    function avia_wpseo_alb_shop_page()
    {
        global $post;

        if ( ! $post instanceof WP_Post || ! class_exists( 'WooCommerce', false ) ) {
            return false;
        }

        $shop_page = wc_get_page_id( 'shop' );

        if ( $post->ID != $shop_page ) {
            return false;
        }

        if ( 'active' != Avia_Builder()->get_alb_builder_status( $shop_page ) ) {
            return false;
        }

        return true;
    }

    /**
     * YOAST takes care of title in normal situations.
     * Only when WC is active and we have a ALB shop page the title is not recognised correctly (because this is no archive page)
     * In that case we simulate this.
     *
     * @since 4.5.5
     * @param string $title
     * @return string
     */
    function avia_wpseo_pre_get_document_title_before( $title )
    {
        global $wp_query, $avia_wp_query_archive_state;

        if ( avia_wpseo_alb_shop_page() ) {
            $avia_wp_query_archive_state = $wp_query->is_archive;
            $wp_query->is_archive = true;
        }

        return $title;
    }

    /**
     * Reset is_archive state
     *
     * @since 4.5.5
     * @param string $title
     * @return string
     */
    function avia_wpseo_pre_get_document_title_after( $title )
    {
        global $wp_query, $avia_wp_query_archive_state;

        if ( avia_wpseo_alb_shop_page() ) {
            $wp_query->is_archive = $avia_wp_query_archive_state;
        }

        return $title;
    }

    add_filter( 'pre_get_document_title', 'avia_wpseo_pre_get_document_title_before', 1, 1 );
    add_filter( 'pre_get_document_title', 'avia_wpseo_pre_get_document_title_after', 99999, 1 );
}


if ( ! function_exists( 'avia_filter_wpseo_xml_sitemap_transient_caching' ) ) {
    /**
     * Disable cache in WP_DEBUG mode
     *
     * @since 5.4
     * @param boolean $cache
     * @return boolean
     */
    function avia_filter_wpseo_xml_sitemap_transient_caching( $cache )
    {
        if ( defined( 'WP_DEBUG' ) && WP_DEBUG ) {
            $cache = false;
        }

        return $cache;
    }

    add_filter( 'wpseo_enable_xml_sitemap_transient_caching', 'avia_filter_wpseo_xml_sitemap_transient_caching', 10, 1 );
}


if ( ! function_exists( 'avia_extract_shortcodes_attachment_ids' ) ) {
    /**
     * Enable Yoast SEO to index ALB elements that contains images.
     * https://github.com/KriesiMedia/wp-themes/issues/1361
     *
     * @since 5.4							modified
     * @param array $elements
     * @param string $content
     * @return array
     */
    function avia_extract_shortcodes_attachment_ids( $elements, $content )
    {
        $container = array();

        if ( ! empty( $elements ) ) {
            foreach ( $elements as $key => $element ) {
                $shortcodes = array();
                preg_match_all( $element['pattern'], $content, $shortcodes );

                foreach ( $shortcodes[0] as $shortcode ) {
                    switch( $element['source'] ) {
                        case 'ids':
                            $src = '/ids=\\\'(\d+(,\d+)*)\\\'/';
                            break;
                        case 'attachment':
                            $src = '/attachment=\\\'(\d+)\\\'/';
                            break;
                        case 'sid':
                            $src = '/id=\\\'(\d+)\\\'/sim';
                            break;
                        default:
                            continue 2;
                    }

                    $id = array();
                    preg_match_all( $src, $shortcode, $id );

                    foreach ( $id[1] as $key => $value ) {
                        if ( empty( $value ) ) {
                            continue;
                        }

                        $img_ids = explode( ',', $value );

                        $container = array_merge( $container, $img_ids );
                    }
                }
            }
        }

        return array_unique( $container, SORT_NUMERIC );
    }
}


if ( ! function_exists( 'avia_filter_wpseo_sitemap_urlimages' ) ) {
    /**
     *
     * @param array $images
     * @param int $post_id
     * @return array
     */
    function avia_filter_wpseo_sitemap_urlimages( $images, $post_id )
    {
        $post = get_post( $post_id );

        if ( $post instanceof WP_Post ) {
            $content = $post->post_content;

            $shortcodes = array(
                'av_masonry_entries',
                'av_blog',
                'av_postslider',
                'av_magazine',
                'av_portfolio'
            );

            $posts_images = array();

            foreach ( $shortcodes as $shortcode_name ) {
                $shortcode_contents = avf_get_shortcodes_by_name( $shortcode_name, $content );

                foreach ($shortcode_contents as $shortcode_content) {
                    if ( $shortcode_content ) {
                        $thumbnails = avf_process_shortcode_for_thumbnails( $shortcode_name, $shortcode_content );

                        if ( is_array( $thumbnails ) && ! empty( $thumbnails ) ) {
                            $posts_images = array_merge($posts_images, $thumbnails);
                        }
                    }
                }
            }

            $elements = apply_filters(
                'avf_add_elements_wpseo_sitemap',
                array(
                    'image_src' => array( 'pattern' => '/\[av_image [^]]*]/', 'source' => 'src' ),
                    'image_attachment' => array( 'pattern' => '/\[av_image [^]]*]/', 'source' => 'attachment' ),
                    'masonry' => array( 'pattern' => '/\[av_masonry_gallery [^]]*]/', 'source' => 'ids' ),
                    'gallery' => array( 'pattern' => '/\[av_gallery [^]]*]/', 'source' => 'ids' ),
                    'horizontal' => array( 'pattern' => '/\[av_horizontal_gallery [^]]*]/', 'source' => 'ids' ),
                    'accordion' => array( 'pattern' => '/\[av_slideshow_accordion(.+?)?\](?:(.+?)?\[\/av_slideshow_accordion\])?/sim', 'source' => 'sid' ),
                    'slideshow' => array( 'pattern' => '/\[av_slideshow(.+?)?\](?:(.+?)?\[\/av_slideshow\])?/sim', 'source' => 'sid' ),
                    'slideshow_full' => array( 'pattern' => '/\[av_slideshow_full(.+?)?\](?:(.+?)?\[\/av_slideshow_full\])?/sim', 'source' => 'sid' ),
                    'slideshow_fullscreen' => array( 'pattern' => '/\[av_fullscreen(.+?)?\](?:(.+?)?\[\/av_fullscreen\])?/sim', 'source' => 'sid' )
                ),
                $post_id
            );

            $ids = avia_extract_shortcodes_attachment_ids( $elements, $content );

            foreach ( $ids as $id ) {
                $title = get_the_title( $id );
                $alt = get_post_meta( $id, '_wp_attachment_image_alt', true );
                $src = wp_get_attachment_url( $id );

                $images[] = array(
                                'src'   => $src,
                                'title' => $title,
                                'alt'   => $alt
                            );
            }
        }

        return array_merge($images, $posts_images);
    }

    add_action( 'wpseo_sitemap_urlimages', 'avia_filter_wpseo_sitemap_urlimages', 10, 2);
}


function avf_get_shortcodes_by_name( $shortcode_name, $content )
{
    preg_match_all( "/\[$shortcode_name(.*?)\]/", $content, $matches );

    if ( isset( $matches[0] ) ) {
        return $matches[0];
    }

    return false;
}

function avf_process_shortcode_for_thumbnails( $shortcode_name, $shortcode_content )
{
    $thumbnails = array();
    $blog_type = '';
    $shortcode_content = stripslashes($shortcode_content);
    $term_ids = '';
    $count = 10;

    preg_match( '/items=["\'](\d+)["\']/', $shortcode_content, $blog_count_matches );
    preg_match( '/blog_type=["\']([^"\']+)["\']/', $shortcode_content, $blog_type_matches );

    if ( isset( $blog_count_matches[1] ) ) {
        $count = $blog_count_matches[1];
    }

    if ( isset( $blog_type_matches[1] ) ) {
        $blog_type = $blog_type_matches[1];
    }

    if ( $blog_type === 'posts' || $shortcode_name == 'av_portfolio' ) {
        preg_match( '/categories=\'([\d,]+)\'/', $shortcode_content, $term_matches );
        $taxonomy = $shortcode_name == 'av_portfolio' ? 'portfolio_entries' : 'category';
    }

    if ( $blog_type === 'taxonomy' || ( empty($blog_type) && $shortcode_name == 'av_magazine' )  ) {
        preg_match( '/link=[\'"]([^\'"]+)[\'"]/', $shortcode_content, $taxonomy_matches );
        $taxonomy_parts = explode( ',', $taxonomy_matches[1] );
        $taxonomy = isset( $taxonomy_parts[0] ) ? $taxonomy_parts[0] : '';
        preg_match( '/(\d+(,\d+)*)/', $taxonomy_matches[1], $term_matches );
    }

    $query_args = array(
        'post_type'      => array('portfolio', 'post', 'product'),
        'posts_per_page' => $count
    );

    if ( isset( $term_matches[1] ) && $taxonomy ) {
        $term_ids = explode( ',', $term_matches[1] );
    }

    $tax_query = array(
        'taxonomy' => $taxonomy,
        'field' => 'term_id'
    );

    if ( ! empty( $term_ids ) ) {
        $tax_query['terms'] = $term_ids;
    } else {
        $terms = get_terms( array(
            'taxonomy' => $taxonomy,
            'fields'   => 'ids', // Retrieve only term IDs
        ) );

        if ( ! is_wp_error( $terms ) && ! empty( $terms ) ) {
            $tax_query['terms'] = $terms;
        }
    }

    $query_args['tax_query'] = array( $tax_query );

    $query = new WP_Query( $query_args );

    if ( $query->have_posts() ) {
        while ( $query->have_posts() ) {
            $query->the_post();
            $url = get_the_post_thumbnail_url( get_the_ID() );
            $title = get_the_title( get_the_ID());
            $alt = get_post_meta( get_the_ID(), '_wp_attachment_image_alt', true );

            $thumbnail = array(
                'src'	=> $url,
                'title'	=> $title,
                'alt'	=> $alt
            );

            if ( $thumbnail ) {
                $thumbnails[] = $thumbnail;
            }
        }
        wp_reset_postdata();
    }

    return $thumbnails;
}

if ( ! function_exists( 'avia_wpseo_sitemap_exclude_pages' ) ) {
    add_filter( 'wpseo_exclude_from_sitemap_by_post_ids', 'avia_wpseo_sitemap_exclude_pages', 10, 1 );

    /**
     * Callback to theme to get a list of all pages that should be excluded from sitemap
     *
     * @link https://kriesi.at/support/topic/yoast-seo-fatal-error-on-post-sitemap-xml-or-page-sitemap-xml/
     * Filter was called with null -> removed type hint array for parameter $post_ids
     *
     * @since 4.5.1
     * @since 5.6.7				removed type hint array for parameter $post_ids
     * @param array|null $post_ids
     * @return array
     */
    function avia_wpseo_sitemap_exclude_pages( $post_ids = array() )
    {
        if ( ! is_array( $post_ids ) ) {
            if ( is_numeric( $post_ids ) ) {
                $post_ids = array( $post_ids );
            } else {
                $post_ids = array();
            }
        }

        /**
         *
         * @used_by				Avia_Custom_Pages							10
         * @used_by				enfold\config-wpml\config.php				20
         * @since 4.5.1
         * @param array $post_ids
         * @param string $context
         * @return array
         */
        $post_ids = apply_filters( 'avf_get_special_pages_ids', $post_ids, 'sitemap' );

        $post_ids = array_unique( $post_ids, SORT_NUMERIC );

        return $post_ids;
    }
}

if ( ! function_exists( 'avia_wpseo_process_shortcode_in_backend' ) ) {
    /**
     * This is a beta trial only.
     * Process shortcode in backend if not called with ajax
     * Ajax call wpseo_filter_shortcodes has only opening tags of shortcodes. Processing makes no sense.
     *
     * @since 4.5.7.1
     * @param string $process
     * @param aviaShortcodeTemplate $class
     * @param array $atts
     * @param string $content
     * @param string $shortcodename
     * @param boolean $fake
     * @return string						'' | 'process_shortcode_in_backend'
     */
    function avia_wpseo_process_shortcode_in_backend( $process, $class, $atts, $content, $shortcodename, $fake )
    {
        if ( defined( 'DOING_AJAX' ) && DOING_AJAX && isset( $_REQUEST['action'] ) && ( 'wpseo_filter_shortcodes' == $_REQUEST['action'] ) ) {
            //			return '';		//	as a try we evaluate shortcodes even if we have no content
            return 'process_shortcode_in_backend';
        }

        /**
         * Currently we do not alter this
         */
        if ( defined( 'DOING_AJAX' ) && DOING_AJAX ) {
            return $process;
        }

        return 'process_shortcode_in_backend';
    }

    add_filter( 'avf_process_shortcode_in_backend', 'avia_wpseo_process_shortcode_in_backend', 20, 6 );
}