<?php
/**
 * Custom functions that act independently of the theme templates.
 *
 * Eventually, some of the functionality here could be replaced by core features.
 *
 * @package Business_One_Page
 */

/**
 * Adds custom classes to the array of body classes.
 *
 * @param array $classes Classes for the body element.
 * @return array
 */
function business_one_page_body_classes( $business_one_page_classes ) {
	// Adds a class of group-blog to blogs with more than 1 published author.
	if ( is_multi_author() ) {
		$business_one_page_classes[] = 'group-blog';
	}

	// Adds a class of hfeed to non-singular pages.
	if ( ! is_singular() ) {
		$business_one_page_classes[] = 'hfeed';
	}

	return $business_one_page_classes;
}
add_filter( 'body_class', 'business_one_page_body_classes' );

/**
 * business_one_page_excerpt can truncate a string up to a number of characters while preserving whole words and HTML tags
 *
 * @param string $business_one_page_text String to truncate.
 * @param integer $business_one_page_length Length of returned string, including ellipsis.
 * @param string $business_one_page_ending Ending to be appended to the trimmed string.
 * @param boolean $business_one_page_exact If false, $business_one_page_text will not be cut mid-word
 * @param boolean $business_one_page_considerHtml If true, HTML tags would be handled correctly
 *
 * @return string Trimmed string.
 * 
 * @link http://alanwhipple.com/2011/05/25/php-truncate-string-preserving-html-tags-words/
 */
function business_one_page_excerpt($business_one_page_text, $business_one_page_length = 100, $business_one_page_ending = '...', $business_one_page_exact = false, $business_one_page_considerHtml = true) {
	if ($business_one_page_considerHtml) {
		// if the plain text is shorter than the maximum length, return the whole text
		if (strlen(preg_replace('/<.*?>/', '', $business_one_page_text)) <= $business_one_page_length) {
			return $business_one_page_text;
		}
		// splits all html-tags to scanable lines
		preg_match_all('/(<.+?>)?([^<>]*)/s', $business_one_page_text, $business_one_page_lines, PREG_SET_ORDER);
		$business_one_page_total_length = strlen($business_one_page_ending);
		$business_one_page_open_tags = array();
		$business_one_page_truncate = '';
		foreach ($business_one_page_lines as $business_one_page_line_matchings) {
			// if there is any html-tag in this line, handle it and add it (uncounted) to the output
			if (!empty($business_one_page_line_matchings[1])) {
				// if it's an "empty element" with or without xhtml-conform closing slash
				if (preg_match('/^<(\s*.+?\/\s*|\s*(img|br|input|hr|area|base|basefont|col|frame|isindex|link|meta|param)(\s.+?)?)>$/is', $business_one_page_line_matchings[1])) {
					// do nothing
				// if tag is a closing tag
				} else if (preg_match('/^<\s*\/([^\s]+?)\s*>$/s', $business_one_page_line_matchings[1], $business_one_page_tag_matchings)) {
					// delete tag from $business_one_page_open_tags list
					$business_one_page_pos = array_search($business_one_page_tag_matchings[1], $business_one_page_open_tags);
					if ($business_one_page_pos !== false) {
					unset($business_one_page_open_tags[$business_one_page_pos]);
					}
				// if tag is an opening tag
				} else if (preg_match('/^<\s*([^\s>!]+).*?>$/s', $business_one_page_line_matchings[1], $business_one_page_tag_matchings)) {
					// add tag to the beginning of $business_one_page_open_tags list
					array_unshift($business_one_page_open_tags, strtolower($business_one_page_tag_matchings[1]));
				}
				// add html-tag to $business_one_page_truncate'd text
				$business_one_page_truncate .= $business_one_page_line_matchings[1];
			}
			// calculate the length of the plain text part of the line; handle entities as one character
			$business_one_page_content_length = strlen(preg_replace('/&[0-9a-z]{2,8};|&#[0-9]{1,7};|[0-9a-f]{1,6};/i', ' ', $business_one_page_line_matchings[2]));
			if ($business_one_page_total_length+$business_one_page_content_length> $business_one_page_length) {
				// the number of characters which are left
				$business_one_page_left = $business_one_page_length - $business_one_page_total_length;
				$business_one_page_entities_length = 0;
				// search for html entities
				if (preg_match_all('/&[0-9a-z]{2,8};|&#[0-9]{1,7};|[0-9a-f]{1,6};/i', $business_one_page_line_matchings[2], $business_one_page_entities, PREG_OFFSET_CAPTURE)) {
					// calculate the real length of all entities in the legal range
					foreach ($business_one_page_entities[0] as $business_one_page_entity) {
						if ($business_one_page_entity[1]+1-$business_one_page_entities_length <= $business_one_page_left) {
							$business_one_page_left--;
							$business_one_page_entities_length += strlen($business_one_page_entity[0]);
						} else {
							// no more characters left
							break;
						}
					}
				}
				$business_one_page_truncate .= substr($business_one_page_line_matchings[2], 0, $business_one_page_left+$business_one_page_entities_length);
				// maximum lenght is reached, so get off the loop
				break;
			} else {
				$business_one_page_truncate .= $business_one_page_line_matchings[2];
				$business_one_page_total_length += $business_one_page_content_length;
			}
			// if the maximum length is reached, get off the loop
			if($business_one_page_total_length>= $business_one_page_length) {
				break;
			}
		}
	} else {
		if (strlen($business_one_page_text) <= $business_one_page_length) {
			return $business_one_page_text;
		} else {
			$business_one_page_truncate = substr($business_one_page_text, 0, $business_one_page_length - strlen($business_one_page_ending));
		}
	}
	// if the words shouldn't be cut in the middle...
	if (!$business_one_page_exact) {
		// ...search the last occurance of a space...
		$business_one_page_spacepos = strrpos($business_one_page_truncate, ' ');
		if (isset($business_one_page_spacepos)) {
			// ...and cut the text in this position
			$business_one_page_truncate = substr($business_one_page_truncate, 0, $business_one_page_spacepos);
		}
	}
	// add the defined ending to the text
	$business_one_page_truncate .= $business_one_page_ending;
	if($business_one_page_considerHtml) {
		// close all unclosed html-tags
		foreach ($business_one_page_open_tags as $business_one_page_tag) {
			$business_one_page_truncate .= '</' . $business_one_page_tag . '>';
		}
	}
	return $business_one_page_truncate;
}

/** Filter for Body Class **/
function business_one_page_layout_class( $business_one_page_classes ){
	global $post;
	if( is_404()){
		$business_one_page_classes[] = '';
	}elseif( !( is_active_sidebar( 'right-sidebar' )) || is_page_template( 'template-home.php' ) ) {
		$business_one_page_classes[] = 'full-width';	
	}elseif(is_singular()){
		$business_one_page_post_class = get_post_meta( $post->ID, 'business_one_page_sidebar_layout', true );
        if( $business_one_page_post_class == 'no-sidebar' )
		$business_one_page_classes[] = 'full-width';
	}else{
	   $business_one_page_classes[] = '';
	}
    
	return $business_one_page_classes;
}

add_filter( 'body_class', 'business_one_page_layout_class' );

/** 
* Hook to move comment text field to the bottom in WP 4.4
* 
* @link http://www.wpbeginner.com/wp-tutorials/how-to-move-comment-text-field-to-bottom-in-wordpress-4-4/ 
*/
function business_one_page_move_comment_field_to_bottom( $business_one_page_fields ) {
    $business_one_page_comment_field = $business_one_page_fields['comment'];
    unset( $business_one_page_fields['comment'] );
    $business_one_page_fields['comment'] = $business_one_page_comment_field;
    return $business_one_page_fields;
}

add_filter( 'comment_form_fields', 'business_one_page_move_comment_field_to_bottom' );

/**
 * Callback function for Comment List *
 * 
 * @link https://codex.wordpress.org/Function_Reference/wp_list_comments 
 */
function business_one_page_theme_comment( $business_one_page_comment, $business_one_page_args, $business_one_page_depth ){
    $GLOBALS['comment'] = $business_one_page_comment;
	extract($business_one_page_args, EXTR_SKIP);

	if ( 'div' == $business_one_page_args['style'] ) {
		$business_one_page_tag = 'div';
		$business_one_page_add_below = 'comment';
	} else {
		$business_one_page_tag = 'li';
		$business_one_page_add_below = 'div-comment';
	}
?>
	<<?php echo $business_one_page_tag ?> <?php comment_class( empty( $business_one_page_args['has_children'] ) ? '' : 'parent' ) ?> id="comment-<?php comment_ID() ?>">
	<?php if ( 'div' != $business_one_page_args['style'] ) : ?>
	<div id="div-comment-<?php comment_ID() ?>" class="comment-body">
	<?php endif; ?>
	<div class="comment-author vcard">
	<?php if ( $business_one_page_args['avatar_size'] != 0 ) echo get_avatar( $business_one_page_comment, $business_one_page_args['avatar_size'] ); ?>
	<?php printf( __( '<b class="fn">%s</b>', 'business-one-page' ), get_comment_author_link() ); ?>
	</div>
	<?php if ( $business_one_page_comment->comment_approved == '0' ) : ?>
		<em class="comment-awaiting-moderation"><?php _e( 'Your comment is awaiting moderation.', 'business-one-page' ); ?></em>
		<br />
	<?php endif; ?>

	<div class="comment-metadata commentmetadata">
    <a href="<?php echo htmlspecialchars( get_comment_link( $business_one_page_comment->comment_ID ) ); ?>">
		<time>
        <?php
			/* translators: 1: date, 2: time */
			printf( __( '%1$s - %2$s', 'business-one-page' ), get_comment_date( 'M n, Y' ), get_comment_time() ); ?>
        </time>
    </a>
	</div>
    
    <div class="comment-content"><?php comment_text(); ?></div>
    
	<div class="reply">
	<?php comment_reply_link( array_merge( $business_one_page_args, array( 'add_below' => $business_one_page_add_below, 'depth' => $business_one_page_depth, 'max_depth' => $business_one_page_args['max_depth'] ) ) ); ?>
	</div>
	<?php if ( 'div' != $business_one_page_args['style'] ) : ?>
	</div>
	<?php endif; ?>
<?php
}

/** Callback for Home Page Slider **/
 function business_one_page_slider_cb(){
    
    $business_one_page_slider_caption = get_theme_mod( 'business_one_page_slider_caption', '1' );
    $business_one_page_slider_readmore = get_theme_mod( 'business_one_page_slider_readmore', __( 'Learn More', 'business-one-page' ) );
    $business_one_page_slider_cat = get_theme_mod( 'business_one_page_slider_cat' );
    
    if( $business_one_page_slider_cat ){
        $business_one_page_qry = new WP_Query ( array( 
            'post_type'     => 'post', 
            'post_status'   => 'publish',
            'posts_per_page'=> -1,                    
            'cat'           => $business_one_page_slider_cat,
            'order'         => 'ASC'
        ) );
        
        if( $business_one_page_qry->have_posts() ){?>
            <div class="banner">
                <div class="flexslider">
                    <ul class="slides">
                    <?php
                    while( $business_one_page_qry->have_posts() ){
                        $business_one_page_qry->the_post();
                        $business_one_page_image = wp_get_attachment_image_src( get_post_thumbnail_id(), 'business-one-page-slider' );
                    ?>
                        <?php if( has_post_thumbnail() ){?>
                        <li>
                            <img src="<?php echo esc_url( $business_one_page_image[0] ); ?>" alt="<?php the_title(); ?>" />
                            <?php if( $business_one_page_slider_caption ){ ?>
        				    <div class="banner-text">
        						<div class="container">
        							<div class="text">
        								<span class="category"><?php the_title(); ?></span>
        								<strong class="title"><?php echo esc_html( get_the_content() ); ?></strong>
                                        <a class="btn-more" href="<?php the_permalink(); ?>"><?php echo esc_attr( $business_one_page_slider_readmore );?></a>
        							</div>
        						</div>
        					</div>
                            <?php } ?>
                        </li>
                        <?php } ?>
                    <?php
                    }
                    ?>
                    </ul>
                </div>
            </div>
            <?php
        }
        wp_reset_postdata();       
    }    
 }
 
 add_action( 'business_one_page_slider', 'business_one_page_slider_cb' );
 
 /** Fuction to get Sections */
 function business_one_page_get_sections(){
    $business_one_page_sections = array( 'about', 'services', 'cta1', 'portfolio', 'team', 'clients', 'blog', 'testimonial', 'cta2', 'contact' );
    $business_one_page_enabled_section = array();
    foreach ($business_one_page_sections as $business_one_page_section) {
        if ( esc_attr( get_theme_mod( 'business_one_page_ed_' . $business_one_page_section . '_section' ) ) == 1 ){
            $business_one_page_enabled_section[] = array(
                'id' => $business_one_page_section,
                'menu_text' => esc_attr( get_theme_mod( 'business_one_page_' . $business_one_page_section . '_section_menu_title','')),
            );
        }
    }
    return $business_one_page_enabled_section;
 }