<?php

function om_breadcrumbs($caption='', $before='<div class="breadcrumbs">', $after='</div>', $separator=' / ') {
	global $post, $wp_query;
	
	$show_last=(get_option(OM_THEME_PREFIX . 'breadcrumbs_show_current') == 'true');
	
	$out=array();
	
	if( is_home() ) {
		
		if(is_front_page()) {
			
			// do nothing
			return;
			
		} else {
			$blog_page_id=get_option('page_for_posts');
			if($blog_page_id) {
				$blog = get_post($blog_page_id);
				if($show_last)
					$out[]=$blog->post_title;
				om_breadcrumbs_add_parents($out,$blog);
			}
		}
		
	}	elseif ( is_attachment() ) {
		
		if($show_last)
			$out[]=$post->post_title;
		om_breadcrumbs_add_parents($out,$post);
		
	} elseif( is_page() ) {

		if($show_last)
			$out[]=$post->post_title;
		om_breadcrumbs_add_parents($out,$post);

	} elseif( is_single() ) {

		if( $post->post_type == 'portfolio' ) {

			if($show_last)
				$out[]=$post->post_title;

			$args = array(
				'post_type' => 'page',
				'posts_per_page' => 1,
				'meta_query' => array(
					array(
						'key' => '_wp_page_template',
						'value' => array('template-portfolio.php', 'template-portfolio-m.php'),
						'compare' => 'IN',
					)
				)
			);
			$terms=get_the_terms($post->ID, 'portfolio-type');
			if(!empty($terms)) {
				$term=reset($terms);
				if($term->parent) {
					$term=get_term($term->parent,'portfolio-type');
					while($term->parent)
						$term=get_term($term->parent,'portfolio-type');
					$args['meta_query'][]=array(
						'key' => OM_THEME_SHORT_PREFIX.'portfolio_categories',
						'value' => $term->term_id
					);
					
				} else {
					$args['meta_query'][]=array(
						'key' => OM_THEME_SHORT_PREFIX.'portfolio_categories',
						'value' => array('0',''),
						'compare' => 'IN',
					);
				}
			}
			$tmp_q = new WP_Query($args);
			if($tmp_q->post_count) {
				$portfolio_page=$tmp_q->posts[0];
			} else {
				wp_reset_postdata();
				unset($args['meta_query'][1]);
				$tmp_q = new WP_Query($args);
				if($tmp_q->post_count)
					$portfolio_page=$tmp_q->posts[0];
				else
					$portfolio_page=false;
			}
			wp_reset_postdata();
			

			if($portfolio_page) {
				$out[]='<a href="'. get_permalink($portfolio_page->ID) .'">'.$portfolio_page->post_title.'</a>';
				om_breadcrumbs_add_parents($out,$portfolio_page);
			}	
			
		} elseif( $post->post_type == 'testimonials' ) {

			if($show_last)
				$out[]=$post->post_title;

		} else {
			if($show_last)
				$out[]=$post->post_title;
	
			$blog_page_id=get_option('page_for_posts');
			if($blog_page_id) {
				$blog = get_post($blog_page_id);
				$out[]='<a href="'. get_permalink($blog->ID) .'">'.$blog->post_title.'</a>';
				om_breadcrumbs_add_parents($out,$blog);
			}
		}

	}	elseif( is_category() ||  is_tag() || is_day() || is_month() || is_year()) {

		if($show_last)
			$out[]=om_get_archive_page_title();

		$blog_page_id=get_option('page_for_posts');
		if($blog_page_id) {
			$blog = get_post($blog_page_id);
			$out[]='<a href="'. get_permalink($blog->ID) .'">'.$blog->post_title.'</a>';
			om_breadcrumbs_add_parents($out,$blog);
		}
		
	}	elseif( is_tax('portfolio-type') ) {
		
		if($show_last)
			$out[]=$wp_query->queried_object->name;

		$portfolio_root_cat=false;
		if($wp_query->queried_object->parent) {
			$tmp=get_term($wp_query->queried_object->parent,'portfolio-type');
			while($tmp->parent)
				$tmp=get_term($tmp->parent,'portfolio-type');
			$portfolio_root_cat=$tmp->term_id;
		}

		$args = array(
			'post_type' => 'page',
			'posts_per_page' => 1,
			'meta_query' => array(
				array(
					'key' => '_wp_page_template',
					'value' => array('template-portfolio.php', 'template-portfolio-m.php'),
					'compare' => 'IN',
				)
			)
		);
		if($portfolio_root_cat) {
			$args['meta_query'][]=array(
				'key' => OM_THEME_SHORT_PREFIX.'portfolio_categories',
				'value' => $portfolio_root_cat
			);
		}
		$tmp_q = new WP_Query($args);
		if($tmp_q->post_count) {
			$portfolio_page=$tmp_q->posts[0];
		} else {
			$portfolio_page=false;
		}
		wp_reset_postdata();
		
		if($portfolio_page) {
			$out[]='<a href="'. get_permalink($portfolio_page->ID) .'">'.$portfolio_page->post_title.'</a>';
			om_breadcrumbs_add_parents($out,$portfolio_page);
		}		
	}
	
	//if(!empty($out)) {
		$out[]='<a href="'. home_url() .'">'.__('Home','om_theme').'</a>';
		echo $before . $caption . implode( $separator, array_reverse($out) ) . (!$show_last ? $separator.'' : '') . $after;
	//}
}


function om_breadcrumbs_add_parents(&$out,$post) {

	if($post->post_parent) {
		$parent=$post->post_parent;
		while($parent) {
			$tmp=get_post($parent);
			if($tmp) {
				$out[]='<a href="'. get_permalink($tmp->ID) .'">'.$tmp->post_title.'</a>';
				$parent=$tmp->post_parent;
			} else {
				break;
			}
		}
	}

}