<?php
/**
 * This file holds various classes and methods for post object manipulation
 *
 *
 * @author		Christian "Kriesi" Budschedl
 * @copyright	Copyright (c) Christian Budschedl
 * @link		http://kriesi.at
 * @link		http://aviathemes.com
 * @package 	AviaFramework
 *
 * @deprecated 5.3	add_theme_support( 'avia_queryfilter' ); not used in Enfold
 */
if( ! defined( 'AVIA_FW' ) )  {  exit( 'No direct script access allowed' );  }


/**
 * adds various params to the queried posts: av_title, av_modified_content, av_image, av_media, av_custom_url
 */
if( ! class_exists( 'avia_queryfilter' ) && current_theme_supports( 'avia_queryfilter' ) )
{
	class avia_queryfilter
	{
		/**
		 * @since ????
		 * @deprecated 5.3
		 */
		public function __construct()
		{
			_deprecated_constructor( 'avia_queryfilter', '5.3' );

			if( ! is_admin() )
			{
				add_filter( 'posts_results', array( $this, 'filter_entries' ), 10, 1 );
			}
		}

		/**
		 * @since ????
		 * @param array $entries
		 * @return array
		 */
		public function filter_entries( $entries )
		{
			foreach( $entries as &$entry )
			{
				//make sure that we never process the same entry twice
				if( ! isset( $entry->av_filter ) && isset( $entry->post_type ) )
				{
					$entry->av_filter = true;

					switch( $entry->post_type )
					{
						case 'post' :
							$this->modify_post( $entry );
							break;
						case 'page' :
							$this->modify_page( $entry );
							break;
					}
				}
			}

			return $entries;
		}

		/**
		 * @since ????
		 * @param WP_Post $entry
		 */
		protected function modify_post( $entry )
		{
			$format = get_post_format( $entry->ID );

			if( empty( $format ) )
			{
				$format = 'standard';
			}

			switch( $format )
			{
				case 'standard':
					$this->filter_title( $entry );
					break;
				case 'gallery':
					$this->filter_title( $entry );
					$this->filter_gallery( $entry );
					break;
				case 'video':
					$this->filter_title( $entry );
					$this->filter_video( $entry );
					break;
				case 'image':
					$this->filter_title( $entry );
					$this->filter_image( $entry );
					break;
				case 'link':
					$this->filter_link( $entry );
					break;
				case 'quote':
					$this->filter_quote( $entry );
					break;
				case 'audio':
					$this->filter_title( $entry );
					$this->filter_audio( $entry );
					break;
			}
		}

		/**
		 * @since ????
		 * @param WP_Post $entry
		 */
		protected function modify_page( $entry )
		{
		}

		/**
		 * @since ????
		 * @param WP_Post $entry
		 */
		protected function filter_title( $entry )
		{
			$default_heading = is_singular() ? 'h1' : 'h2';
			$args = array(
						'heading'		=> $default_heading,
						'extra_class'	=> ''
					);

			/**
			 * @since 4.5.5
			 * @return array
			 */
			$args = apply_filters( 'avf_customize_heading_settings', $args, 'avia_queryfilter::filter_title', array( $entry ) );

			$heading = ! empty( $args['heading'] ) ? $args['heading'] : $default_heading;
			$css = ! empty( $args['extra_class'] ) ? $args['extra_class'] : '';


			$title_attr = the_title_attribute( array( 'before' =>__( 'Link to:', 'avia_framework' ) . ' ', 'after' => '', 'echo' => false, 'post' => $entry->ID ) );

			$output  = '';
			$output .= "<{$heading} class='post-title entry-title {$css}' " . avia_markup_helper( array( 'context' => 'entry_title', 'echo' => false ) ) . '>';
			$output .=		"<a href='" . get_permalink( $entry->ID) . "' rel='bookmark' title='{$title_attr}'>";
			$output .=			get_the_title( $entry->ID );
			$output .=			'<span class="post-format-icon minor-meta"></span>';
			$output .=		'</a>';
			$output .= "</{$heading}>";

			$entry->av_title = $output;
		}

		/**
		 * @since ????
		 * @param WP_Post $entry
		 */
		protected function filter_gallery( $entry )
		{
			$match_gallery = array();

			//search for the first av gallery or gallery shortcode
			preg_match("!\[(?:av_)?gallery.+?\]!", $entry->post_content, $match_gallery );

			if( ! empty( $match_gallery ) )
			{
				$gallery = $match_gallery[0];

				if( strpos( $gallery, 'av_' ) === false )
				{
					$gallery = str_replace( 'gallery', 'av_gallery', $gallery );
				}

				if( strpos( $gallery, 'style' ) === false )
				{
					$gallery = str_replace( ']', " style='big_thumb' preview_size='gallery']", $gallery );
				}

				$entry->av_image = do_shortcode( $gallery );
				$entry->av_modified_content = str_replace( $match_gallery[0], '', $entry->post_content );
			}
		}

		/**
		 * @since ????
		 * @param WP_Post $entry
		 */
		protected function filter_video( $entry )
		{
			$match_video = array();

			//replace empty url strings with an embed code
		 	$content = preg_replace( '|^\s*(https?://[^\s"]+)\s*$|im', '[embed]$1[/embed]', $entry->post_content );

			//extrect embed and av_video codes from the content. if any were found execute them and prepend them to the post
			preg_match( "!\[embed.+?\]|\[av_video.+?\]!", $content, $match_video );

			if( ! empty( $match_video ) )
			{
				global $wp_embed;

				$video = $match_video[0];

				$entry->av_media = do_shortcode( $wp_embed->run_shortcode( $video ) );
				$entry->av_modified_content = str_replace( $match_video[0], '', $content );
			}
		}

		/**
		 * @since ????
		 * @param WP_Post $entry
		 */
		protected function filter_image( $entry )
		{
			$prepend_image = get_the_post_thumbnail( get_the_ID(), 'large' );
			$image = '';

			if( ! $prepend_image )
			{
				$image = avia_regex( $entry->post_content, 'image' );
				if( is_array( $image ) )
				{
					$image = $image[0];
					$prepend_image = '<div class="avia-post-format-image"><img src="' . $image . '" alt="" title ="" /></div>';
				}
				else
				{
					$image = avia_regex( $entry->post_content, '<img />', '' );
					if( is_array( $image ) )
					{
						$prepend_image = '<div class="avia-post-format-image">' . $image[0] . '</div>';
					}
				}
			}
			else
			{
				$large_image = wp_get_attachment_image_src( get_post_thumbnail_id( get_the_ID() ), 'extra_large' );
				if( is_array( $large_image ) )
				{
					$prepend_image = '<div class="avia-post-format-image"><a href="' . $large_image[0] . '">' . $prepend_image . '</a></div>';
				}
				else
				{
					$prepend_image = '<div class="avia-post-format-image">' . $prepend_image . '</div>';
				}
			}

			if( ! empty( $prepend_image ) && is_string( $prepend_image ) )
			{
				if( $image )
				{
					$entry->av_modified_content = str_replace( $image, '', $entry->post_content );
				}

				$entry->av_image = $prepend_image;
			}
		}

		/**
		 * @since ????
		 * @param WP_Post $entry
		 */
		protected function filter_link( $entry )
		{
			//retrieve the link for the post
			$link = '';

			$title_attr = the_title_attribute( array( 'before' => __( 'Link to:', 'avia_framework' ) . ' ', 'after' => '', 'echo' => false , 'post' => $entry->ID ) );

			$pattern1 = '$^\b(https?|ftp|file)://[-A-Z0-9+&@#/%?=~_|!:,.;]*[-A-Z0-9+&@#/%=~_|]$i';
			$pattern2 = "!^\<a.+?<\/a>!";
			$pattern3 = "!\<a.+?<\/a>!";

			//if the url is at the begnning of the content extract it
			preg_match( $pattern1, $entry->post_content , $link );
			if( ! empty( $link[0] ) )
			{
				$link = $link[0];
				$markup = avia_markup_helper( array( 'context' => 'entry_title', 'echo' => false ) );
				$entry->av_title = "<a href='{$link}' rel='bookmark' title='{$title_attr}' $markup>" . get_the_title( $entry->ID ) . '</a>';
				$entry->av_modified_content = preg_replace( '!' . str_replace( '?', "\?", $link ) . '!', '', $entry->post_content, 1 );
			}
			else
			{
				preg_match( $pattern2, $entry->post_content , $link );
				if( ! empty( $link[0] ) )
				{
					$link = $link[0];
					$entry->av_title = $link;
					$entry->av_modified_content = preg_replace( '!' . str_replace( '?', "\?", $link) . '!', '', $entry->post_content, 1 );
				}
				else
				{
					preg_match( $pattern3, $entry->post_content , $link );
					if( ! empty( $link[0] ) )
					{
						$entry->av_title = $link[0];
					}
				}
			}

			if( $link )
			{
				if( is_array( $link ) )
				{
					$link = $link[0];
				}

				$heading = is_singular() ? 'h1' : 'h2';

				$entry->av_title = "<{$heading} class='post-title entry-title' " . avia_markup_helper( array( 'context' => 'entry_title', 'echo' => false ) ) . '>' . $entry->av_title . "</{$heading}>";

				//needs to be set for masonry
				$entry->av_custom_url = $link;
			}
			else
			{
				$this->filter_title( $entry );
			}
		}

		/**
		 * @since ????
		 * @param WP_Post $entry
		 */
		protected function filter_quote( $entry )
		{
			$output  = '';
			$output .= "<blockquote class='first-quote' " . avia_markup_helper( array( 'context' => 'entry_title', 'echo' => false ) ) . '>';
			$output .=		get_the_title( $entry->ID );
			$output .= '</blockquote>';

			 $entry->av_title = $output;
		}

		/**
		 * @since ????
		 * @param WP_Post $entry
		 */
		protected function filter_audio( $entry )
		{
			$match_audio = array();
			preg_match("!\[audio.+?\]\[\/audio\]!", $entry->post_content, $match_audio);

			if( ! empty( $match_audio ) )
			{
				$entry->av_media = do_shortcode( $match_audio[0] );
				$entry->av_modified_content = str_replace( $match_audio[0], '', $entry->post_content );
			}
		}

	}

	new avia_queryfilter();
}