<?php 
 add_amp_theme_support('AMP-gdpr');
// Custom AMP Content
require AMPFORWP_PLUGIN_DIR  .'templates/custom-amp-content.php';
// Custom AMPFORWP Sanitizers
require AMPFORWP_PLUGIN_DIR  .'templates/custom-sanitizer.php';
// Load aq resizer only in AMP mode
add_action('pre_amp_render_post','ampforwp_include_aqresizer');
function ampforwp_include_aqresizer(){
    //Removed Jetpack Mobile theme option #2584
    remove_action('option_stylesheet', 'jetpack_mobile_stylesheet');
    require AMPFORWP_PLUGIN_DIR  .'includes/vendor/aq_resizer.php';
}
 //  Some Extra Styling for Admin area
add_action( 'admin_enqueue_scripts', 'ampforwp_add_admin_styling' );
function ampforwp_add_admin_styling(){
    global $redux_builder_amp;
    // Style file to add or modify css inside admin area
    wp_register_style( 'ampforwp_admin_css', untrailingslashit(AMPFORWP_PLUGIN_DIR_URI) . '/includes/admin-style.css', false, AMPFORWP_VERSION );
    wp_enqueue_style( 'ampforwp_admin_css' );

    // Admin area scripts file
    wp_register_script( 'ampforwp_admin_js', untrailingslashit(AMPFORWP_PLUGIN_DIR_URI) . '/includes/admin-script.js', false, AMPFORWP_VERSION );

    // Localize the script with new data
    wp_localize_script( 'ampforwp_admin_js', 'redux_data', $redux_builder_amp );

    wp_enqueue_script( 'ampforwp_admin_js' );
}
// 96. ampforwp_is_front_page() ampforwp_is_home() and ampforwp_is_blog is created
function ampforwp_is_front_page(){
    global $redux_builder_amp;

    // Reading settings me frontpage set
    $get_front_page_reading_settings  = get_option('page_on_front');

    // Homepage support on   
    $get_amp_homepage_settings        =  ampforwp_get_setting('ampforwp-homepage-on-off-support');

    // AMP Custom front page from AMP panel
    $get_custom_frontpage_settings    =  ampforwp_get_setting('amp-frontpage-select-option');

    // Frontpage id should be assigned
    if ( ampforwp_get_setting('amp-frontpage-select-option-pages') ) {
        $get_amp_custom_frontpage_id      =  $redux_builder_amp['amp-frontpage-select-option-pages'];
    }

    // TRUE: When we have "Your latest posts" in reading settings and custom frontpage in amp
    if ( 'posts' == get_option( 'show_on_front') && is_home() && $get_amp_homepage_settings && $get_custom_frontpage_settings)
        return true;

     // TRUE: When we have " A static page" in reading settings and custom frontpage in amp
    if ( 'page' == get_option( 'show_on_front') && (is_home() || is_front_page()) && $get_front_page_reading_settings && $get_amp_homepage_settings && $get_custom_frontpage_settings && $get_amp_custom_frontpage_id) {

        $current_page = get_queried_object();
        if ( $current_page ) {
          $current_page =  $current_page->ID;
        }
        if ( get_option( 'page_for_posts') == $current_page ) {
            return false ;
        }
        return true;
    }

  return false ;

}

function ampforwp_is_home(){
    global $redux_builder_amp;

    $output  = false;
    if ( ampforwp_is_front_page() == false && ampforwp_is_blog () == false && is_home() ) {
       $output  = true;
    }
    return $output;
}

function ampforwp_is_blog(){
  $get_blog_details = "";
  $get_blog_details = ampforwp_get_blog_details();

  return $get_blog_details ;
}
// Polylang frontpage
function ampforwp_polylang_front_page() {
    include_once( ABSPATH . 'wp-admin/includes/plugin.php' );
    if( is_plugin_active( 'polylang/polylang.php' )  || is_plugin_active( 'polylang-pro/polylang.php' ) ){
        global $polylang;
        $page_id = $polylang->curlang->page_on_front;
        $frontpage_id = get_option('page_on_front');
        // is_front_page is not working here so had to do this way
        // Check current page id with translated page id
        if ( function_exists('pll_get_post') && $page_id == pll_get_post($frontpage_id) && ! is_page() && ! is_single() && ! is_archive() && ! is_search() && ! ampforwp_is_blog() ){
            return true;
        }
    }
    return false;
}
// Get The ID for AMP #2867
function ampforwp_get_the_ID($post_id=''){
    $post_id = get_the_ID();
    if(ampforwp_is_front_page()){
    $post_id = ampforwp_get_frontpage_id();
    }
    if(ampforwp_is_blog()){
    $post_id = ampforwp_get_blog_details('id');
    }
    return $post_id;
}
// 27. Clean the Defer issue
// TODO : Get back to this issue. #407
function ampforwp_the_content_filter_full( $content_buffer ) {
    if ((!is_plugin_active('amp/amp.php') && function_exists( 'ampforwp_is_amp_endpoint' ) && ampforwp_is_amp_endpoint() ) 
        || 
        (function_exists('amp_activate') && function_exists( 'is_amp_endpoint' ) && is_amp_endpoint() )) {
        $content_buffer = preg_replace("/' defer='defer/", "", $content_buffer);
        $content_buffer = preg_replace("/' defer onload='/", "", $content_buffer);
        $content_buffer = preg_replace("/' defer /", "", $content_buffer);
        $content_buffer = preg_replace("/onclick=[^>]*/", "", $content_buffer);
        $content_buffer = preg_replace("/<\\/?thrive_headline(.|\\s)*?>/",'',$content_buffer);
        // Remove Extra styling added by other Themes/ Plugins
        $content_buffer = preg_replace('/(<style(.*?)>(.*?)<\/style>)<!doctype html>/','<!doctype html>',$content_buffer);
        $content_buffer = preg_replace('/(<style(.*?)>(.*?)<\/style>)(\/\*)/','$4',$content_buffer);
        $content_buffer = preg_replace("/<\\/?g(.|\\s)*?>/",'',$content_buffer);
        $content_buffer = preg_replace('/(<[^>]+) spellcheck="false"/', '$1', $content_buffer);
        $content_buffer = preg_replace('/(<[^>]+) spellcheck="true"/', '$1', $content_buffer);
        $content_buffer = preg_replace("/about:blank/", "#", $content_buffer);
        $content_buffer = preg_replace("/<script data-cfasync[^>]*>.*?<\/script>/", "", $content_buffer);
        $content_buffer = preg_replace('/<font(.*?)>(.*?)<\/font>/', '$2', $content_buffer);
        //$content_buffer = preg_replace('/<style type=(.*?)>|\[.*?\]\s\{(.*)\}|<\/style>(?!(<\/noscript>)|(\n<\/head>)|(<noscript>))/','',$content_buffer);

        // xlink attribute causes Validatation Issues #1149
        $content_buffer = preg_replace('/xlink="href"/','',$content_buffer);
        $content_buffer = preg_replace('/!important/', '' , $content_buffer);
        //  Compatibility with the footnotes plugin. #2447
        if(class_exists('MCI_Footnotes')){
        $content_buffer = preg_replace( '/<sup(.*?)id="footnote_plugin_tooltip_(.*?)"(.*?)class="footnote_plugin_tooltip_text"(.*?)>(.*?)<\/sup>/m',  '
        <sup$1id="footnote_plugin_tooltip_$2"$3class="footnote_plugin_tooltip_text"$4><a href="#footnote_plugin_reference_$2">$5</a></sup>', $content_buffer);
        }
        $content_buffer = apply_filters('ampforwp_the_content_last_filter', $content_buffer);

    }
    if(function_exists('ampforwp_amp_nonamp_convert') && ampforwp_amp_nonamp_convert("", "check")){
      $content_buffer = ampforwp_amp_nonamp_convert($content_buffer, "filter");
    }
    return $content_buffer;
}
add_action('wp_loaded', function(){ ob_start('ampforwp_the_content_filter_full'); }, 999);


// 74. Featured Image check from Custom Fields
function ampforwp_is_custom_field_featured_image(){
    global $redux_builder_amp, $post;
    if(isset($redux_builder_amp['ampforwp-custom-fields-featured-image-switch'], $redux_builder_amp['ampforwp-custom-fields-featured-image']) && $redux_builder_amp['ampforwp-custom-fields-featured-image-switch'] && $redux_builder_amp['ampforwp-custom-fields-featured-image']){
        return true;
        }
    else
        return false;
}

//Meta description #1013
function ampforwp_generate_meta_desc($json=""){
    global $post, $redux_builder_amp;
    $desc = $post_id = '';
    if ( ampforwp_is_front_page() ) {
        $post_id = ampforwp_get_frontpage_id();
        $post = get_post($post_id);
    }
    if ( ampforwp_is_blog() ) {
        $post_id = ampforwp_get_blog_details('id');
        $post = get_post($post_id);
    }
    $post_id = $post->ID;
    if ( $redux_builder_amp['ampforwp-seo-meta-description'] ) {
        if ( ampforwp_is_home() || ampforwp_is_blog() ) {
            $desc = addslashes( strip_tags( get_bloginfo( 'description' ) ) );
        }
        if ( is_archive() ) {
            $desc = addslashes( strip_tags( get_the_archive_description() ) );
        }
        if ( is_single() || is_page() ) {
            if ( has_excerpt() ) {
                $desc = get_the_excerpt();
            } else {
                global $post;
                $id = $post->ID;
                $desc = $post->post_content;
            }
            $desc = preg_replace('/\[(.*?)\]/',' ', $desc);
            $desc = addslashes( wp_trim_words( strip_tags( $desc ) , 15 ) );
        }
        if ( is_search() ) {
            $desc = addslashes( ampforwp_translation($redux_builder_amp['amp-translator-search-text'], 'You searched for:') . ' ' . get_search_query() );
        }
        if ( ampforwp_is_front_page() ) {
            $post_id = ampforwp_get_frontpage_id();
            $desc = addslashes( wp_trim_words(  strip_tags( get_post_field('post_content', $post_id) ) , 15 ) );
        }

        // Yoast 
        if ( class_exists('WPSEO_Frontend') && ('yoast' || 1) == $redux_builder_amp['ampforwp-seo-selection'] ) {
            $front = $yoast_desc = '';
            $front = WPSEO_Frontend::get_instance();
            $yoast_desc = addslashes( strip_tags( $front->metadesc( false ) ) );
            // Static front page
            if ( ampforwp_is_front_page() ) { 
                $post_id = ampforwp_get_frontpage_id();
                if ( class_exists('WPSEO_Meta') ) {
                    $yoast_desc = addslashes( strip_tags( WPSEO_Meta::get_value('metadesc', $post_id ) ) );
                }
            }
            // for search
            if ( is_search() ) {
                $yoast_desc = addslashes( ampforwp_translation($redux_builder_amp['amp-translator-search-text'], 'You searched for:') . '  ' . get_search_query() );
            }
            if ( $json && false == $redux_builder_amp['ampforwp-seo-yoast-description'] ) {
                $yoast_desc = '';
            }
            if ( $yoast_desc ) {
                $desc = $yoast_desc;
            }
        } 

        // All in One SEO
        if ( class_exists('All_in_One_SEO_Pack') && (2 || 'aioseo') == $redux_builder_amp['ampforwp-seo-selection'] ) {
            $aisop_class = $aisop_desc = $opts = '';
            $aisop_class = new All_in_One_SEO_Pack();
            if ( ampforwp_is_home() ) {
                $post_id = ampforwp_get_blog_details('id');
                $post = get_post($post_id);
            }
            $aisop_desc = $aisop_class->get_aioseop_description($post);
            $opts = $aisop_class->get_current_options( array(), 'aiosp' );
            if ( (is_category() || is_tax() || is_tag()) && $aisop_class->show_page_description() ) {
                $aisop_desc = $opts['aiosp_description'];
            }
            if ( ampforwp_is_front_page() ) {
                $post_id = ampforwp_get_frontpage_id();
                $post = get_post($post_id);
                $aisop_desc = $aisop_class->get_post_description( $post );
            }
            if ( $aisop_desc ) {
                $desc = $aisop_desc;
            }
        }

        //Genesis #1013
        if ( function_exists('genesis_meta') && 'genesis' == ampforwp_get_setting('ampforwp-seo-selection') ) {
            $genesis_description = '';
            if ( is_home() && is_front_page() && ! $redux_builder_amp['amp-frontpage-select-option'] ) {
                $genesis_description = genesis_get_seo_option( 'home_description' ) ? genesis_get_seo_option( 'home_description' ) : get_bloginfo( 'description' );
            }
            elseif ( is_home() && get_option( 'page_for_posts' ) && get_queried_object_id() ) {
                $post_id = get_option( 'page_for_posts' );
                if ( null !== $post_id || is_singular() ) {
                    if ( genesis_get_custom_field( '_genesis_description', $post_id ) ) {
                        $genesis_description = genesis_get_custom_field( '_genesis_description', $post_id );
                        if ( $genesis_description ) {
                            $desc = $genesis_description;
                        }
                    }
                }
            }
            elseif ( is_home() && $redux_builder_amp['amp-frontpage-select-option'] && get_option( 'page_on_front' ) ) {
                $post_id = get_option('page_on_front');
                if ( null !== $post_id || is_singular() ) {
                    if ( genesis_get_custom_field( '_genesis_description', $post_id ) ) {
                        $genesis_description = genesis_get_custom_field( '_genesis_description', $post_id );
                        }
                    }
                }
            else {
                $genesis_description = genesis_get_seo_meta_description();
            }

            if ( $genesis_description ) {
                    $desc = $genesis_description;
                }
        }
        // SEOPress #1589
        if ( is_plugin_active('wp-seopress/seopress.php') && 'seopress' == ampforwp_get_setting('ampforwp-seo-selection') ) {
            $seopress_description = $seopress_options = '';
            $seopress_options = get_option("seopress_titles_option_name");
            if ( get_post_meta($post_id,'_seopress_titles_desc',true) ) {
                $seopress_description = get_post_meta($post_id,'_seopress_titles_desc',true);
            }
            if ( ampforwp_is_home() || ampforwp_is_blog() ) {
                $seopress_variables_array = array('%%sitetitle%%','%%tagline%%');
                $seopress_replace_array = array( get_bloginfo('name'), get_bloginfo('description') );
                $seopress_description = $seopress_options['seopress_titles_home_site_desc'];
                $seopress_description = str_replace($seopress_variables_array, $seopress_replace_array, $seopress_description);

            }
            if ( is_archive() ) {
                $seopress_description = get_term_meta(get_queried_object()->{'term_id'},'_seopress_titles_desc',true);
            }
            if ( $seopress_description ) {
                $desc = $seopress_description;
            }
        }
        // Rank Math SEO #2701
        if ( defined( 'RANK_MATH_FILE' ) && 'rank_math' == ampforwp_get_setting('ampforwp-seo-selection') ) {
            $rank_math_desc = '';
            $rank_math_desc = RankMath\Post::get_meta( 'description', $post_id );
            if ( $rank_math_desc ) {
                $desc = $rank_math_desc;
            }
        }
        //Bridge Qode SEO Compatibility #2538 
        if ( function_exists('qode_header_meta') && 'bridge' == ampforwp_get_setting('ampforwp-seo-selection')){
        $desc = get_post_meta($post_id, "qode_seo_description", true);
        }
        // strip_shortcodes  strategy not working here so had to do this way
        // strips shortcodes
        $desc = preg_replace('/\[(.*?)\]/','', $desc);
    }
    return $desc;
}

// 77. AMP Blog Details
if( !function_exists('ampforwp_get_blog_details') ) {
    function ampforwp_get_blog_details( $param = "" ) {
        global $redux_builder_amp;
        $current_url = '';
        $output      = '';
        $slug        = '';
        $title       = '';
        $blog_id     = '';
        $current_url_in_pieces = array();
        if(is_home() && get_option('show_on_front') == 'page' ) {
            $current_url = home_url( $GLOBALS['wp']->request );
            $current_url_in_pieces = explode( '/', $current_url );
            $page_for_posts  =  get_option( 'page_for_posts' );
            if( $page_for_posts ){
                $post = get_post($page_for_posts);
                if ( $post ) {
                    $slug = $post->post_name;
                    $title = $post->post_title;
                    $blog_id = $post->ID;
                }                       
                switch ($param) {
                    case 'title':
                        $output = $title;
                        break;
                    case 'name':
                        $output = $slug;
                        break;
                    case 'id':
                        $output = $blog_id;
                        break;
                    default:
                        if( in_array( $slug , $current_url_in_pieces , true ) || get_query_var('page_id') == $blog_id ) {
                            $output = true;
                        }
                        else
                            $output = false;
                        break;
                }
            }
            else
                $output = false;
        }
        return $output;
    }
}

    // 56. Multi Translation Feature #540
function ampforwp_translation( $redux_style_translation , $pot_style_translation ) {
 global $redux_builder_amp;
 $single_translation_enabled = $redux_builder_amp['amp-use-pot'];
   if ( !$single_translation_enabled ) {
     return $redux_style_translation;
   } else {
     return __($pot_style_translation,'accelerated-mobile-pages');
   }
}

// END Point
function ampforwp_end_point_controller( $url, $check='' ) {
    global $redux_builder_amp;
    $checker = '';
    $endpoint = AMPFORWP_AMP_QUERY_VAR;
    $endpoint = '?' . $endpoint;
    if ( isset($redux_builder_amp['amp-core-end-point']) && true == $redux_builder_amp['amp-core-end-point'] ) {
        $url = untrailingslashit($url.$endpoint);
    }
    else 
        $url = $url . user_trailingslashit( AMP_QUERY_VAR, 'single_amp' );

    return $url;
}

if ( ! function_exists( 'ampforwp_isexternal ') ) {
    function ampforwp_isexternal($url) {
        $components = parse_url($url);

        // we will treat url like '/relative.php' as relative
        if ( empty($components['host']) ) return false;  
        
        // url host looks exactly like the local host
        if ( strcasecmp($components['host'], $_SERVER['HTTP_HOST']) === 0 ) return false; 
        
        // check if the url host is a subdomain
        return strrpos(strtolower($components['host']), $_SERVER['HTTP_HOST']) !== strlen($components['host']) - strlen($_SERVER['HTTP_HOST']); 
    }
} // end ampforwp_isexternal

if(!function_exists('ampforwp_findInternalUrl')){
    function ampforwp_findInternalUrl($url){
        global $redux_builder_amp;
        if(isset($redux_builder_amp['convert-internal-nonamplinks-to-amp']) && ! $redux_builder_amp['convert-internal-nonamplinks-to-amp']){
            return $url;
        }
        $get_skip_media_path    = array();
        $skip_media_extensions  = array();
        $get_skip_media_path    = pathinfo($url);
        $skip_media_extensions  = array('jpg','jpeg','gif','png');

        if ( isset( $get_skip_media_path['extension'] ) ){
            if (! in_array( $get_skip_media_path['extension'], $skip_media_extensions ) ){
                $skip_media_extensions[] = $get_skip_media_path['extension'];
            }
        }
        $skip_media_extensions = apply_filters( 'ampforwp_internal_links_skip_media', $skip_media_extensions );

        if ( isset( $get_skip_media_path['extension'] ) ){
            if( in_array( $get_skip_media_path['extension'], $skip_media_extensions ) ) {
                return $url;
            }
        }
        if ( false !== strpos($url, '#') && false === ampforwp_is_amp_inURL($url) && !ampforwp_isexternal($url) ) {
            $url_array = explode('#', $url);
            if ( !empty($url_array) && '' !== $url_array[0]) {
                $url = ampforwp_url_controller($url_array[0]).'#'.$url_array[1];
                return $url;
            }
        }
        if( false === wp_http_validate_url($url) ) {
            return $url;
        }
        if(!ampforwp_isexternal($url) && ampforwp_is_amp_inURL($url)===false){
          // Skip the URL's that have edit link to it
          $parts = parse_url($url);
          if ( isset($parts['query']) && $parts['query']) {
            parse_str($parts['query'], $query);
          }
          if ( (isset( $query['action'] ) && $query['action']) || (isset( $query['amp'] ) && $query['amp'] ) ) {
              return $url;
          }
          $qmarkAmp = (isset($redux_builder_amp['amp-core-end-point']) ? $redux_builder_amp['amp-core-end-point']: false );//amp-core-end-point
          if ( $qmarkAmp ){
            $url = add_query_arg( 'amp', '1', $url);
            return $url;
          }
          else{
            if ( get_option('permalink_structure') ) {
                if ( strpos($url, "?") && strpos($url, "=") ){
                    $url = explode('?', $url);
                    $url = ampforwp_url_controller($url[0]).'?'.$url[1];
                }
                else
                    $url = ampforwp_url_controller($url);
            }
            else
                $url = add_query_arg( 'amp', '1', $url );
          }
          return $url;
        }
        return $url;
    }
} // end ampforwp_findInternalUrl

function ampforwp_is_amp_inURL($url){
    $urlArray = explode("/", $url);
    if( !in_array( AMPFORWP_AMP_QUERY_VAR , $urlArray ) ) {
        return false;
    }
    return true;
}

/* AMPforWP allowed html tags #1950
 * ampforwp_wp_kses_allowed_html()
 * This fucntion can be heavy for sanitizing items.
 * As it scans though all the generated AMP tags and attributes.
 * Use it cautiously.
 */ 
function ampforwp_wp_kses_allowed_html(){
    $allowed_html = $allowed_normal_html = $allowed_amp_tags = array();
    $allowed_normal_html = wp_kses_allowed_html( 'post' );
    if ( class_exists('AMP_Allowed_Tags_Generated') ) {
        $allowed_amp_tags = AMP_Allowed_Tags_Generated::get_allowed_tags();
        $allowed_atts = AMP_Allowed_Tags_Generated::get_allowed_attributes();
        foreach ($allowed_atts as $att => $value) {
            $allowed_atts[$att] = true;
        }
        foreach ($allowed_amp_tags as $amp_tag => $values ) {
                $allowed_amp_tags[$amp_tag] = $allowed_atts;
        }
    }
    $allowed_html = array_merge_recursive($allowed_normal_html, $allowed_amp_tags);
    if( $allowed_html ) {
        foreach ( $allowed_html as $tag => $atts ) {
            if ( is_array($atts) ){
                unset($allowed_html[$tag]['style']);
            }
            if ( 'a' == $tag ) {
                $allowed_html[$tag]['data-toggle'] = true;
            }
            if ( 'label' == $tag ) {
                $allowed_html[$tag]['aria-label'] = true;
            }
            if ( 'amp-img' == $tag ) {
                $allowed_html[$tag] = array('width'=>true,'height'=>true,'src'=>true,'layout'=>true,'alt'=>true,'on'=>true,'role'=>true,'tabindex'=>true);
            }
        }
        $allowed_html['input'] = array('class'=>true,'type'=>true,'id'=>true,'placeholder'=>true,'value'=>true,'name'=>true);
    }
    return $allowed_html; 
}
function ampforwp_wp_kses($data){
    $allowed_html = ampforwp_wp_kses_allowed_html();
    $data = wp_kses( stripslashes( $data ), $allowed_html );
    return $data;
}

//93. added AMP url purifire for amphtml
function ampforwp_url_purifier($url){
    global $wp_query,$wp,$redux_builder_amp;
    $get_permalink_structure    = "";
    $endpoint                   = "";
    $endpointq                  = "";
    $queried_var                = "";
    $quried_value               = "";
    $query_arg                  = "";
    $endpoint                   = AMPFORWP_AMP_QUERY_VAR;
    $get_permalink_structure = get_option('permalink_structure');
    $checker = $redux_builder_amp['amp-core-end-point'];
    $endpointq = '?' . $endpoint;
    if ( empty( $get_permalink_structure ) ) {
        if ( is_home() || is_archive() || is_front_page() ) {
            $url  = add_query_arg(AMPFORWP_AMP_QUERY_VAR,'1', $url);
            if ( is_home() && get_query_var('page_id') == ampforwp_get_blog_details('id') ) {
                $quried_value = get_query_var('page_id');
                if ( '' != $quried_value)
                    $url  = add_query_arg('page_id',$quried_value, $url);
            }
            if ( get_query_var('paged') >= 2 ) {
                $quried_value = get_query_var('paged');
                $url  = add_query_arg('paged',$quried_value, $url);
            }
        }
        if ( is_archive() ) {
            if ( is_archive() ) {
                $queried_var    = 'm';
            }
            if ( is_tag() ) {
                $queried_var    = 'tag';
            }
            if ( is_category() ) {
                $queried_var    = 'cat';
            }
            if ( is_author() ) {
                $queried_var    = 'author';
            }
            $quried_value   = get_query_var($queried_var);
            $url  = add_query_arg($queried_var,$quried_value, $url);
        }
    } else {
        if ( is_singular() && true == $checker ) {
            $url = untrailingslashit($url);
        }
        if ( is_home() || is_archive() || is_front_page() ) {
            if ( ( is_archive() || is_home() ) && get_query_var('paged') > 1 ) {
                if ( true == $checker )
                    $url = trailingslashit($url).$endpointq;
                else
                    $url = user_trailingslashit( trailingslashit($url) );
            } else {
                if ( true == $checker && false == strpos($url, $endpointq) )
                    $url =  trailingslashit($url) . $endpointq;
                else {
                    if ( false == strpos($url, '/'.$endpoint) )
                        $url = user_trailingslashit( trailingslashit($url) . $endpoint );
                }   
            }
        }
    }
    if ( is_singular() && !empty($_SERVER['QUERY_STRING']) ) {
        $query_arg   = wp_parse_args($_SERVER['QUERY_STRING']);
        $query_name = '';
        if(is_single()){
            $query_name = isset($wp_query->query['name'])?$wp_query->query['name']:'';  
        }
        else{
            $query_name = isset($wp_query->query['pagename'])?$wp_query->query['pagename']:'';
        }
        if( $query_name && ampforwp_is_query_post_same( $_SERVER['QUERY_STRING'],$query_name) && isset( $query_arg['q'] ) ){
            unset($query_arg['q']);
        }
        else if ( $query_name && isset( $query_arg['q'] ) ){ 
            unset($query_arg['q']); 
        }      
        $url     = add_query_arg( $query_arg, $url);
    }
    return apply_filters( 'ampforwp_url_purifier', $url );
}
// 98. Create Dynamic url of amp according to the permalink structure #1318
function ampforwp_url_controller( $url, $nonamp = '' ) {
    global $redux_builder_amp;
    $non_amp = false;
    $non_amp = apply_filters( 'ampforwp_non_amp_links', $non_amp );
    if($non_amp == true){
        return $url;
    }
    $new_url = "";
    $get_permalink_structure = "";
    if ( ampforwp_amp_nonamp_convert("", "check") || (isset($redux_builder_amp['ampforwp-amp-takeover']) && true == $redux_builder_amp['ampforwp-amp-takeover']) ) {
        $nonamp = 'nonamp';
    }
    if ( isset($nonamp) && 'nonamp' == $nonamp ) {
        return $url;
    }
    $get_permalink_structure = get_option('permalink_structure');
    if ( $get_permalink_structure ) {
        if ( isset($redux_builder_amp['amp-core-end-point']) && 1 == $redux_builder_amp['amp-core-end-point'] ) {
                $new_url = trailingslashit($url);
                $new_url = $new_url.'?'.AMPFORWP_AMP_QUERY_VAR;
                //$new_url = add_query_arg(AMPFORWP_AMP_QUERY_VAR,'1', $new_url);
            }
        else {
                $new_url = user_trailingslashit( trailingslashit( $url ) . AMPFORWP_AMP_QUERY_VAR);
            // WPML COMPATIBILITY FOR LOOP 
                include_once( ABSPATH . 'wp-admin/includes/plugin.php' );
                if( is_plugin_active( 'sitepress-multilingual-cms/sitepress.php' )){
                    global $sitepress_settings,$wp;
                    if($sitepress_settings[ 'language_negotiation_type' ] == 3){
                            $current_archive_url = untrailingslashit($url);
                            $explode_path   = explode("/",$current_archive_url);
                            $inserted       = array(AMPFORWP_AMP_QUERY_VAR);
                            $query_arg_array = $wp->query_vars;
                            $active_langs = $sitepress_settings['active_languages'];
                            $found = '';
                            foreach ($active_langs as $active_lang) {
                                foreach($explode_path as $a) {
                                     if (stripos('?lang='.$active_lang ,$a) !== false){
                                            $new_url = add_query_arg('amp','1',$current_archive_url);
                                            $found = 'found';
                                            break 2;
                                    }
                                }
                             }
                            if($found == ''){
                                array_splice( $explode_path, count($explode_path), 0, $inserted );
                                $impode_url = implode('/', $explode_path);
                                $new_url = $impode_url;
                            }
                        }
                    }
                }
    } else {
        $new_url = add_query_arg( 'amp', '1', $url );
    }
    return esc_url( apply_filters( 'ampforwp_url_controller', $new_url ) );
}

// Function ampforwp_amp_nonamp_convert
if(!function_exists('ampforwp_amp_nonamp_convert')){
    function ampforwp_amp_nonamp_convert($ampData, $type=""){
        $returnData = '';
        if("check" === $type){
            return ampforwp_is_non_amp('non_amp_check_convert');
        }
        if(!ampforwp_is_non_amp('non_amp_check_convert')){
            return $ampData;
        }
        switch($type){
            case 'filter':
                $returnData = str_replace(array(
                                                "amp-img",
                                                "<style amp-custom>",
                                                "<amp-sidebar ",
                                                "</amp-sidebar>",
                                                'on="tap:ampforwpConsent.dismiss"',
                                                '<div id="post-consent-ui"',
                                                'on="tap:ampforwpConsent.reject"',
                                                'on="tap:ampforwpConsent.accept"'
                                                ),
                                            array(
                                                "img",
                                                "<style type=\"text/css\">",
                                                "<sidebar ",
                                                "</sidebar>",
                                                'onClick="ampforwp_gdrp_set()"',
                                                '<script>
                                                function ampforwp_gdpr_getCookie(name) {
                                                  var value = "; " + document.cookie;
                                                  var parts = value.split("; " + name + "=");
                                                  if (parts.length == 2) return parts.pop().split(";").shift();
                                                }
                                                function ampforwp_gdpr(){
                                            if(ampforwp_gdpr_getCookie(\'ampforwpcookie\') == \'1\'){document.getElementById(\'gdpr_c\').remove();}
                                            }ampforwp_gdpr();
                                            function ampforwp_gdrp_set(){document.getElementById(\'ampforwpConsent\').remove(); document.cookie = \'ampforwpcookie=1;expires;path=/\';}
                                                </script><div id="post-consent-ui"',
                                                'onClick="ampforwp_gdrp_set()"',
                                                'onClick="ampforwp_gdrp_set()"',
                                                )
                                            , $ampData);

                $nonampCss = '
                .cntr img{height:auto !important;}
                img{height:auto;}
                .amp-featured-image img{width:100%;height:auto;}
                .content-wrapper, .header, .header-2, .header-3{width:100% !important;}
                .image-mod img{width:100%;}
                
                ';
                $re = '/<style\s*type="text\/css">(.*?)<\/style>/si';
                $subst = "<style type=\"text/css\">$1 ".$nonampCss."</style>";
                $returnData = preg_replace($re, $subst, $returnData);
                $returnData = preg_replace(
                '/<amp-youtube\sdata-videoid="(.*?)"(.*?)><\/amp-youtube>/',
                 '<iframe src="'. esc_url("https://www.youtube.com/embed/$1").'" style="width:100%;height:360px;" ></iframe>', $returnData);
                $returnData = preg_replace_callback(
                '/<amp-iframe(.*?)src="(.*?)"(.*?)><\/amp-iframe>/', 
                function($matches){
                    return '<iframe src="'.esc_url($matches[2]).'" style="width:100%;height:400px;" ></iframe>';
                }, $returnData);
            break;
        }
        return $returnData;
    }
}