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<?php
/**
 * This code shows pagination for WooCommerce shortcodes when it's embeded on single pages.
 * Include into functions.php.
 */

if ( ! is_admin() ) {
// ---------------------- FRONTPAGE -------------------

if ( defined('WC_VERSION') ) {
// ---------------------- WooCommerce active -------------------
  

   	/**
	 * Set Pagination for shortcodes custom loop on single-pages.
  	 * @uses $woocommerce_loop;
  	 */
  	add_action( 'pre_get_posts', 'kli_wc_pre_get_posts_query' ); 
  	function kli_wc_pre_get_posts_query( $query ) {
  		global $woocommerce_loop;
  	
	  	// Get paged from main query only
	  	// ! frontpage missing the post_type
	  	if ( is_main_query() && ( $query->query['post_type'] == 'product' ) || ! isset( $query->query['post_type'] ) ){
	  
		  if ( isset($query->query['paged']) ){
  			$woocommerce_loop['paged'] = $query->query['paged'];
		  }
	  	}
	  
  		if ( ! $query->is_post_type_archive || $query->query['post_type'] !== 'product' ){
		  	return;
	  	}
  		
  		$query->is_paged = true;
  		$query->query['paged'] = $woocommerce_loop['paged'];
  		$query->query_vars['paged'] = $woocommerce_loop['paged'];
  	}
  
	/** Prepare Pagination data for shortcodes on pages
  	 * @uses $woocommerce_loop;
	 */
	add_action( 'loop_end', 'kli_query_loop_end' ); 
	function kli_query_loop_end( $query ) {
		
		if ( ! $query->is_post_type_archive || $query->query['post_type'] !== 'product' ){
			return;
		}
		
		// Cache data for pagination
		global $woocommerce_loop;
		$woocommerce_loop['pagination']['paged'] = $woocommerce_loop['paged'];
		$woocommerce_loop['pagination']['found_posts'] = $query->found_posts;
		$woocommerce_loop['pagination']['max_num_pages'] = $query->max_num_pages;
		$woocommerce_loop['pagination']['post_count'] = $query->post_count;
		$woocommerce_loop['pagination']['current_post'] = $query->current_post;

	}


	/**
	 * Pagination for shortcodes on single-pages 
	 * @uses $woocommerce_loop;
	 */
	add_action( 'woocommerce_after_template_part', 'kli_wc_shortcode_pagination' ); 
	function kli_wc_shortcode_pagination( $template_name ) {

		if ( ! ( $template_name === 'loop/loop-end.php' && is_page() ) ){
			return;
		}

		global $wp_query, $woocommerce_loop;

		if ( ! isset( $woocommerce_loop['pagination'] ) ){
			return;
		}

		$wp_query->query_vars['paged'] = $woocommerce_loop['pagination']['paged'];
		$wp_query->query['paged'] = $woocommerce_loop['pagination']['paged'];
		$wp_query->max_num_pages = $woocommerce_loop['pagination']['max_num_pages'];
		$wp_query->found_posts = $woocommerce_loop['pagination']['found_posts'];
		$wp_query->post_count = $woocommerce_loop['pagination']['post_count'];
		$wp_query->current_post = $woocommerce_loop['pagination']['current_post'];
 
		// Custom pagination function or default woocommerce_pagination()
		kli_woocommerce_pagination();
	}	

	/**
	 * Custom pagination for WooCommerce instead the default woocommerce_pagination()
	 * @uses plugin Prime Strategy Page Navi, but added is_singular() on #line16
	 */
	remove_action('woocommerce_after_shop_loop', 'woocommerce_pagination', 10);
	add_action( 'woocommerce_after_shop_loop', 'kli_woocommerce_pagination', 10);
	function kli_woocommerce_pagination() {
		page_navi(); 
	}



}// END WOOCOMMERCE
}// END FRONTPAGE