<?php

// хлебные крошки
if (!function_exists('fcook_breadcrumbs')) {
function fcook_breadcrumbs() {
   $separator = '<i>></i>'; //каким символом разделять хлебные крошки
   $home = 'Главная'; //текст ссылки на главную
   $home_link  = home_url('/');
   $show_home = 1; //показывать или нет на главной
   $last_crumb = 0; //показывать или нет последнюю крошку

   $wrap_schema = 'itemprop="breadcrumb" itemscope itemtype="http://schema.org/BreadcrumbList"';
   $listitem = '<li itemprop="itemListElement" itemscope itemtype="http://schema.org/ListItem" >';
   $listitem_close = '</li>';
   $a_schema = ' itemprop="item"';
   $span_schema = '<span itemprop="name">';
   $span_schema_close = '</span>';

   $single_link = $listitem . '<a href="%1$s"' . $a_schema . '>' . $span_schema . '%2$s' . $span_schema_close . '</a>' . $listitem_close;

   global $post;

      //главная
   if ( is_front_page() ) {
         if ($show_home)
            echo '<ol class="breadcrumbs" ' . $wrap_schema . '> '
            .$listitem.
               '<span ' . $a_schema . '>
                  <span itemprop="name">'. $home .'</span>
               </span>
               <meta itemprop="position" content="1" />

            </ol>';
   } else {
      echo '<ol class="breadcrumbs" ' . $wrap_schema . '>' . $listitem .
            '<a itemprop="item" href="' . $home_link . '">' .   $span_schema . $home . $span_schema_close .   '</a>
            <meta itemprop="position" content="1" />' . $listitem_close;

         //категория
      if ( is_category() ) {
         $cat = get_category(get_query_var('cat'), false);
         if ($cat->parent != 0) {
            $category = get_category_parents($cat->parent, TRUE, $separator);
            $category = preg_replace("#^(.+)$separator$#", "$1", $category);
            $category = preg_replace('#<a([^>]+)>([^<]+)<\/a>#', $listitem . '<a$1' . $a_schema .'>' . $span_schema . '$2' . $span_schema_close .'</a>' . $listitem_close, $category);
            echo $separator;
            echo $category;
         }
            echo $separator;
            echo $listitem . $span_schema . sprintf('' . single_cat_title('', false) . '') . $span_schema_close . '<meta itemprop="position" content="3" />' . $listitem_close;
      }
         //поиск
      elseif ( is_search() ) {
         if (have_posts()) {
            echo $separator;
            echo $listitem . $span_schema . sprintf('Результаты поиска для "%s"', get_search_query()) . $span_schema_close . '<meta itemprop="position" content="2" />' . $listitem_close;
         }
      }
         //страница записи
      elseif ( is_single() && !is_attachment() ) {
         echo $separator;
         if ( get_post_type() != 'post' ) {
            $post_type = get_post_type_object(get_post_type());
            $slug = $post_type->rewrite;
            printf($single_link, $home_link . '/' . $slug['slug'] . '/', $post_type->labels->singular_name);
         if ($last_crumb) echo get_the_title();
         } else {
            $cat = get_the_category(); $cat = $cat[0];
            $category = get_category_parents($cat, TRUE, $separator);
               if (! $last_crumb)
                  $category = preg_replace("#^(.+)$separator$#", "$1", $category);
                  $category = preg_replace('#<a([^>]+)>([^<]+)<\/a>#', $listitem . '<a$1' . $a_schema .'>' . $span_schema . '$2' . $span_schema_close .'</a>' . $listitem_close, $category);
                  echo $category;
               if ($last_crumb)
                  echo $listitem . $span_schema . get_the_title() . $span_schema_close . '<meta itemprop="position" content="3" />' . $listitem_close;
         }
      }
         //пользовательские типы записей
      elseif ( !is_single() && !is_page() && get_post_type() != 'post' && !is_404() ) {
         $post_type = get_post_type_object(get_post_type());
            if ( get_query_var('paged') ) {
               echo $separator . sprintf($single_link, get_post_type_archive_link($post_type->name), $post_type->label) . $sep . $before . sprintf($text['page'], get_query_var('paged')) . $after;
            } else {
            if ($last_crumb) echo $separator . $listitem . $post_type->label . $listitem_close;
            }
         }
         //статические страницы
      elseif ( is_page() ) {
         echo $separator;
         echo $listitem . $span_schema . get_the_title() . $span_schema_close . '<meta itemprop="position" content="2" />' . $listitem_close;
      }
         //метки
      elseif ( is_tag() ) {
         echo $separator;
         echo $listitem . $span_schema . sprintf('Записи с меткой ', single_tag_title('', false)) . $span_schema_close . '<meta itemprop="position" content="2" />' . $listitem_close;
      }
         //страница ошибки
      elseif ( is_404() ) {
         echo $separator;
         echo $listitem . $span_schema . 'Ошибка 404' . $span_schema_close . '<meta itemprop="position" content="2" />' . $listitem_close;
      }
         //пагинация
      if ( get_query_var('paged') ) {
         if ( is_category() || is_day() || is_month() || is_year() || is_search() || is_tag() || is_author() ) {
            echo ' (';
            echo 'Страница ' . get_query_var('paged');
            echo ')';
         }
      }
   echo '</ol>';
   }

}
}