<?php
/**
 * Custom functions
 */


add_action( 'virtue_after_body', 'virtue_skip_link', 1 );
function virtue_skip_link() {
	echo '<div id="kt-skip-link"><a href="#content">Skip to Main Content</a></div>';
}

function virtue_hex2rgb( $hex ) {
	$hex = str_replace( "#", "", $hex );

	if( strlen( $hex ) == 3 ) {
		$r = hexdec( substr( $hex,0,1 ).substr( $hex,0,1 ) );
		$g = hexdec( substr( $hex,1,1 ).substr( $hex,1,1 ) );
		$b = hexdec( substr( $hex,2,1 ).substr( $hex,2,1 ) );
	} else {
		$r = hexdec( substr( $hex,0,2 ) );
		$g = hexdec( substr( $hex,2,2 ) );
		$b = hexdec( substr( $hex,4,2 ) );
	}
	$rgb = array( $r, $g, $b );

	return $rgb;
}

function virtue_admin_allowed_html(){

	$allowed = wp_kses_allowed_html( 'post' );
	// form fields - input
	$allowed['input'] = array(
		'class' => array(),
		'id'    => array(),
		'name'  => array(),
		'value' => array(),
		'type'  => array(),
	);
	// select
	$allowed['select'] = array(
		'class'  => array(),
		'id'     => array(),
		'name'   => array(),
		'value'  => array(),
		'type'   => array(),
	);
	// select options
	$allowed['option'] = array(
		'selected' => array(),
		'value' => array(),
	);

	return $allowed;
}
function virtue_template_override_init() {
	if( class_exists( 'EventOrganiser_Admin_Page' ) ) {
		add_filter( 'template_include', 'virtue_evento_venue_overide', 20 );
		function virtue_evento_venue_overide($template) {
			if(is_tax( 'event-venue' ) ) {
				remove_filter('template_include', array('Kadence_Wrapping', 'wrap'), 101);
				add_filter('template_include', array('Kadence_Wrapping', 'wrap'), 99999);
			}
			return $template;
		}
	}
}
add_action( 'init', 'virtue_template_override_init' );

// Depreciated
function kt_get_srcset( $width,$height,$url,$id ) {
	if(empty($id) || empty($url)) {
		return;
	}
  
	$image_meta = get_post_meta( $id, '_wp_attachment_metadata', true );
	if(empty($image_meta['file'])){
		return;
	}
	// If possible add in our images on the fly sizes
  	$ext = substr($image_meta['file'], strrpos($image_meta['file'], "."));
  	$pathflyfilename = str_replace($ext,'-'.$width.'x'.$height.'' . $ext, $image_meta['file']);
  	$retina_w = $width*2;
	$retina_h = $height*2;
  	$pathretinaflyfilename = str_replace($ext, '-'.$retina_w.'x'.$retina_h . $ext, $image_meta['file']);
  	$flyfilename = basename($image_meta['file'], $ext) . '-'.$width.'x'.$height.'' . $ext;
  	$retinaflyfilename = basename($image_meta['file'], $ext) . '-'.$retina_w.'x'.$retina_h . $ext;

  	$upload_info = wp_upload_dir();
  	$upload_dir = $upload_info['basedir'];

  	$flyfile = trailingslashit($upload_dir).$pathflyfilename;
  	$retinafile = trailingslashit($upload_dir).$pathretinaflyfilename;
  	if(empty($image_meta['sizes']) ){ 
  		$image_meta['sizes'] = array();
  	}
    if (file_exists($flyfile)) {
      	$kt_add_imagesize = array(
        	'kt_on_fly' => array( 
          	'file'=> $flyfilename,
          	'width' => $width,
          	'height' => $height,
          	'mime-type' => isset($image_meta['sizes']['thumbnail']) ? $image_meta['sizes']['thumbnail']['mime-type'] : '', 
          	)
      	);
      	$image_meta['sizes'] = array_merge($image_meta['sizes'], $kt_add_imagesize);
    }
    if (file_exists($retinafile)) {
        $kt_add_imagesize_retina = array(
        	'kt_on_fly_retina' => array( 
          	'file'=> $retinaflyfilename,
          	'width' => 2 * $width,
          	'height' => 2 * $height,
          	'mime-type' => isset($image_meta['sizes']['thumbnail']) ? $image_meta['sizes']['thumbnail']['mime-type'] : '',
          	)
        );
        $image_meta['sizes'] = array_merge($image_meta['sizes'], $kt_add_imagesize_retina);
    }
    if(function_exists ( 'wp_calculate_image_srcset') ){
      $output = wp_calculate_image_srcset(array( $width, $height), $url, $image_meta, $id);
    } else {
      $output = '';
    }
    return $output;
}
function kt_get_srcset_output($width,$height,$url,$id) {
    $img_srcset = kt_get_srcset( $width, $height, $url, $id);
    if(!empty($img_srcset) ) {
      $output = 'srcset="'.esc_attr($img_srcset).'" sizes="(max-width: '.esc_attr($width).'px) 100vw, '.esc_attr($width).'px"';
    } else {
      $output = '';
    }
    return $output;
}


/**
 * Schema type
 */
function kadence_html_tag_schema() {
	$schema = 'https://schema.org/';

	if ( is_singular( 'post' ) ) {
		$type = 'WebPage';
	} elseif ( is_page_template( 'page-contact.php' ) ) {
		$type = 'ContactPage';
	} elseif ( is_author() ) {
		$type = 'ProfilePage';
	} elseif ( is_search() ) {
		$type = 'SearchResultsPage';
	} else {
		$type = 'WebPage';
	}

	echo apply_filters( 'kadence_html_schema', 'itemscope="itemscope" itemtype="' . esc_attr( $schema ) . esc_attr( $type ) . '"' );
}

// Ecerpt Length

function virtue_excerpt( $limit ) {
	$excerpt = explode(' ', get_the_excerpt(), $limit);

	if (count($excerpt)>=$limit) {
		array_pop($excerpt);
		$excerpt = implode(" ",$excerpt).'...';
	} else {
		$excerpt = implode(" ",$excerpt);
	} 
	
	$excerpt = preg_replace('`\[[^\]]*\]`','',$excerpt);
	return $excerpt;
}

function virtue_content( $limit ) {
	$content = explode(' ', get_the_content(), $limit);
	if (count($content)>=$limit) {
		array_pop($content);
		$content = implode(" ",$content).'...';
	} else {
		$content = implode(" ",$content);
	} 
	
	$content = preg_replace('/\[.+\]/','', $content);
	$content = apply_filters('the_content', $content); 
	$content = str_replace(']]>', ']]&gt;', $content);
	return $content;
}


/* === Ambrosite Next/Previous Post Link Plus ===
Author: ambrosite
Link: http://www.ambrosite.com/plugins
*/

function kadence_get_adjacent_post_plus($r, $previous = true ) {
  global $post, $wpdb;

  extract( $r, EXTR_SKIP );

  if ( empty( $post ) )
    return null;

//  Sanitize $order_by, since we are going to use it in the SQL query. Default to 'post_date'.
  if ( in_array($order_by, array('post_date', 'post_title', 'post_excerpt', 'post_name', 'post_modified')) ) {
    $order_format = '%s';
  } elseif ( in_array($order_by, array('ID', 'post_author', 'post_parent', 'menu_order', 'comment_count')) ) {
    $order_format = '%d';
  } elseif ( $order_by == 'custom' && !empty($meta_key) ) { // Don't allow a custom sort if meta_key is empty.
    $order_format = '%s';
  } elseif ( $order_by == 'numeric' && !empty($meta_key) ) {
    $order_format = '%d';
  } else {
    $order_by = 'post_date';
    $order_format = '%s';
  }
  
//  Sanitize $order_2nd. Only columns containing unique values are allowed here. Default to 'post_date'.
  if ( in_array($order_2nd, array('post_date', 'post_title', 'post_modified')) ) {
    $order_format2 = '%s';
  } elseif ( in_array($order_2nd, array('ID')) ) {
    $order_format2 = '%d';
  } else {
    $order_2nd = 'post_date';
    $order_format2 = '%s';
  }
  
//  Sanitize num_results (non-integer or negative values trigger SQL errors)
  $num_results = intval($num_results) < 2 ? 1 : intval($num_results);

//  Queries involving custom fields require an extra table join
  if ( $order_by == 'custom' || $order_by == 'numeric' ) {
    $current_post = get_post_meta($post->ID, $meta_key, TRUE);
    $order_by = ($order_by === 'numeric') ? 'm.meta_value+0' : 'm.meta_value';
    $meta_join = $wpdb->prepare(" INNER JOIN $wpdb->postmeta AS m ON p.ID = m.post_id AND m.meta_key = %s", $meta_key );
  } elseif ( $in_same_meta ) {
    $current_post = $post->$order_by;
    $order_by = 'p.' . $order_by;
    $meta_join = $wpdb->prepare(" INNER JOIN $wpdb->postmeta AS m ON p.ID = m.post_id AND m.meta_key = %s", $in_same_meta );
  } else {
    $current_post = $post->$order_by;
    $order_by = 'p.' . $order_by;
    $meta_join = '';
  }

//  Get the current post value for the second sort column
  $current_post2 = $post->$order_2nd;
  $order_2nd = 'p.' . $order_2nd;
  
//  Get the list of post types. Default to current post type
  if ( empty($post_type) )
    $post_type = "'$post->post_type'";

//  Put this section in a do-while loop to enable the loop-to-first-post option
  do {
    $join = $meta_join;
    $excluded_categories = $ex_cats;
    $included_categories = $in_cats;
    $excluded_posts = $ex_posts;
    $included_posts = $in_posts;
    $in_same_term_sql = $in_same_author_sql = $in_same_meta_sql = $ex_cats_sql = $in_cats_sql = $ex_posts_sql = $in_posts_sql = '';

//    Get the list of hierarchical taxonomies, including customs (don't assume taxonomy = 'category')
    $taxonomies = array_filter( get_post_taxonomies($post->ID), "is_taxonomy_hierarchical" );

    if ( ($in_same_cat || $in_same_tax || $in_same_format || !empty($excluded_categories) || !empty($included_categories)) && !empty($taxonomies) ) {
      $cat_array = $tax_array = $format_array = array();

      if ( $in_same_cat ) {
        $cat_array = wp_get_object_terms($post->ID, $taxonomies, array('fields' => 'ids'));
      }
      if ( $in_same_tax && !$in_same_cat ) {
        if ( $in_same_tax === true ) {
          if ( $taxonomies != array('category') )
            $taxonomies = array_diff($taxonomies, array('category'));
        } else
          $taxonomies = (array) $in_same_tax;
        $tax_array = wp_get_object_terms($post->ID, $taxonomies, array('fields' => 'ids'));
      }
      if ( $in_same_format ) {
        $taxonomies[] = 'post_format';
        $format_array = wp_get_object_terms($post->ID, 'post_format', array('fields' => 'ids'));
      }

      $join .= " INNER JOIN $wpdb->term_relationships AS tr ON p.ID = tr.object_id INNER JOIN $wpdb->term_taxonomy tt ON tr.term_taxonomy_id = tt.term_taxonomy_id AND tt.taxonomy IN (\"" . implode('", "', $taxonomies) . "\")";

      $term_array = array_unique( array_merge( $cat_array, $tax_array, $format_array ) );
      if ( !empty($term_array) )
        $in_same_term_sql = "AND tt.term_id IN (" . implode(',', $term_array) . ")";

      if ( !empty($excluded_categories) ) {
//        Support for both (1 and 5 and 15) and (1, 5, 15) delimiter styles
        $delimiter = ( strpos($excluded_categories, ',') !== false ) ? ',' : 'and';
        $excluded_categories = array_map( 'intval', explode($delimiter, $excluded_categories) );
//        Three category exclusion methods are supported: 'strong', 'diff', and 'weak'.
//        Default is 'weak'. See the plugin documentation for more information.
        if ( $ex_cats_method === 'strong' ) {
          $taxonomies = array_filter( get_post_taxonomies($post->ID), "is_taxonomy_hierarchical" );
          if ( function_exists('get_post_format') )
            $taxonomies[] = 'post_format';
          $ex_cats_posts = get_objects_in_term( $excluded_categories, $taxonomies );
          if ( !empty($ex_cats_posts) )
            $ex_cats_sql = "AND p.ID NOT IN (" . implode($ex_cats_posts, ',') . ")";
        } else {
          if ( !empty($term_array) && !in_array($ex_cats_method, array('diff', 'differential')) )
            $excluded_categories = array_diff($excluded_categories, $term_array);
          if ( !empty($excluded_categories) )
            $ex_cats_sql = "AND tt.term_id NOT IN (" . implode($excluded_categories, ',') . ')';
        }
      }

      if ( !empty($included_categories) ) {
        $in_same_term_sql = ''; // in_cats overrides in_same_cat
        $delimiter = ( strpos($included_categories, ',') !== false ) ? ',' : 'and';
        $included_categories = array_map( 'intval', explode($delimiter, $included_categories) );
        $in_cats_sql = "AND tt.term_id IN (" . implode(',', $included_categories) . ")";
      }
    }

//    Optionally restrict next/previous links to same author    
    if ( $in_same_author )
      $in_same_author_sql = $wpdb->prepare("AND p.post_author = %d", $post->post_author );

//    Optionally restrict next/previous links to same meta value
    if ( $in_same_meta && $r['order_by'] != 'custom' && $r['order_by'] != 'numeric' )
      $in_same_meta_sql = $wpdb->prepare("AND m.meta_value = %s", get_post_meta($post->ID, $in_same_meta, TRUE) );

//    Optionally exclude individual post IDs
    if ( !empty($excluded_posts) ) {
      $excluded_posts = array_map( 'intval', explode(',', $excluded_posts) );
      $ex_posts_sql = " AND p.ID NOT IN (" . implode(',', $excluded_posts) . ")";
    }
    
//    Optionally include individual post IDs
    if ( !empty($included_posts) ) {
      $included_posts = array_map( 'intval', explode(',', $included_posts) );
      $in_posts_sql = " AND p.ID IN (" . implode(',', $included_posts) . ")";
    }

    $adjacent = $previous ? 'previous' : 'next';
    $order = $previous ? 'DESC' : 'ASC';
    $op = $previous ? '<' : '>';

//    Optionally get the first/last post. Disable looping and return only one result.
    if ( $end_post ) {
      $order = $previous ? 'ASC' : 'DESC';
      $num_results = 1;
      $loop = false;
      if ( $end_post === 'fixed' ) // display the end post link even when it is the current post
        $op = $previous ? '<=' : '>=';
    }

//    If there is no next/previous post, loop back around to the first/last post.   
    if ( $loop && isset($result) ) {
      $op = $previous ? '>=' : '<=';
      $loop = false; // prevent an infinite loop if no first/last post is found
    }
    
    $join  = apply_filters( "get_{$adjacent}_post_plus_join", $join, $r );

//    In case the value in the $order_by column is not unique, select posts based on the $order_2nd column as well.
//    This prevents posts from being skipped when they have, for example, the same menu_order.
    $where = apply_filters( "get_{$adjacent}_post_plus_where", $wpdb->prepare("WHERE ( $order_by $op $order_format OR $order_2nd $op $order_format2 AND $order_by = $order_format ) AND p.post_type IN ($post_type) AND p.post_status = 'publish' $in_same_term_sql $in_same_author_sql $in_same_meta_sql $ex_cats_sql $in_cats_sql $ex_posts_sql $in_posts_sql", $current_post, $current_post2, $current_post), $r );

    $sort  = apply_filters( "get_{$adjacent}_post_plus_sort", "ORDER BY $order_by $order, $order_2nd $order LIMIT $num_results", $r );

    $query = "SELECT DISTINCT p.* FROM $wpdb->posts AS p $join $where $sort";
    $query_key = 'adjacent_post_' . md5($query);
    $result = wp_cache_get($query_key);
    if ( false !== $result )
      return $result;

//    echo $query . '<br />';

//    Use get_results instead of get_row, in order to retrieve multiple adjacent posts (when $num_results > 1)
//    Add DISTINCT keyword to prevent posts in multiple categories from appearing more than once
    $result = $wpdb->get_results("SELECT DISTINCT p.* FROM $wpdb->posts AS p $join $where $sort");
    if ( null === $result )
      $result = '';

  } while ( !$result && $loop );

  wp_cache_set($query_key, $result);
  return $result;
}

/**
 * Display previous post link that is adjacent to the current post.
 *
 * Based on previous_post_link() from wp-includes/link-template.php
 *
 * @param array|string $args Optional. Override default arguments.
 * @return bool True if previous post link is found, otherwise false.
 */
function kadence_previous_post_link_plus($args = '') {
  return kadence_adjacent_post_link_plus($args, '&laquo; %link', true);
}

/**
 * Display next post link that is adjacent to the current post.
 *
 * Based on next_post_link() from wp-includes/link-template.php
 *
 * @param array|string $args Optional. Override default arguments.
 * @return bool True if next post link is found, otherwise false.
 */
function kadence_next_post_link_plus($args = '') {
  return kadence_adjacent_post_link_plus($args, '%link &raquo;', false);
}

/**
 * Display adjacent post link.
 *
 * Can be either next post link or previous.
 *
 * Based on adjacent_post_link() from wp-includes/link-template.php
 *
 * @param array|string $args Optional. Override default arguments.
 * @param bool $previous Optional, default is true. Whether display link to previous post.
 * @return bool True if next/previous post is found, otherwise false.
 */
function kadence_adjacent_post_link_plus($args = '', $format = '%link &raquo;', $previous = true) {
  $defaults = array(
    'order_by' => 'post_date', 'order_2nd' => 'post_date', 'meta_key' => '', 'post_type' => '',
    'loop' => false, 'end_post' => false, 'thumb' => false, 'max_length' => 0,
    'format' => '', 'link' => '%title', 'date_format' => '', 'tooltip' => '%title',
    'in_same_cat' => false, 'in_same_tax' => false, 'in_same_format' => false,
    'in_same_author' => false, 'in_same_meta' => false,
    'ex_cats' => '', 'ex_cats_method' => 'weak', 'in_cats' => '', 'ex_posts' => '', 'in_posts' => '',
    'before' => '', 'after' => '', 'num_results' => 1, 'return' => false, 'echo' => true
  );
  
  $r = wp_parse_args( $args, $defaults );
  if ( empty($r['format']) )
    $r['format'] = $format;
  if ( empty($r['date_format']) )
    $r['date_format'] = get_option('date_format');
  if ( !function_exists('get_post_format') )
    $r['in_same_format'] = false;

  if ( $previous && is_attachment() ) {
    $posts = array();
    $posts[] = & get_post($GLOBALS['post']->post_parent);
  } else
    $posts = kadence_get_adjacent_post_plus($r, $previous);

//  If there is no next/previous post, return false so themes may conditionally display inactive link text.
  if ( !$posts )
    return false;

//  If sorting by date, display posts in reverse chronological order. Otherwise display in alpha/numeric order.
  if ( ($previous && $r['order_by'] != 'post_date') || (!$previous && $r['order_by'] == 'post_date') )
    $posts = array_reverse( $posts, true );
    
//  Option to return something other than the formatted link    
  if ( $r['return'] ) {
    if ( $r['num_results'] == 1 ) {
      reset($posts);
      $post = current($posts);
      if ( $r['return'] === 'id')
        return $post->ID;
      if ( $r['return'] === 'href')
        return get_permalink($post);
      if ( $r['return'] === 'object')
        return $post;
      if ( $r['return'] === 'title')
        return $post->post_title;
      if ( $r['return'] === 'date')
        return mysql2date($r['date_format'], $post->post_date);
    } elseif ( $r['return'] === 'object')
      return $posts;
  }

  $output = $r['before'];

//  When num_results > 1, multiple adjacent posts may be returned. Use foreach to display each adjacent post.
  foreach ( $posts as $post ) {
    $title = $post->post_title;
    if ( empty($post->post_title) )
      $title = $previous ? __('Previous Post', 'virtue') : __('Next Post', 'virtue');

    $title = apply_filters('the_title', $title, $post->ID);
    $date = mysql2date($r['date_format'], $post->post_date);
    $author = get_the_author_meta('display_name', $post->post_author);
  
//    Set anchor title attribute to long post title or custom tooltip text. Supports variable replacement in custom tooltip.
    if ( $r['tooltip'] ) {
      $tooltip = str_replace('%title', $title, $r['tooltip']);
      $tooltip = str_replace('%date', $date, $tooltip);
      $tooltip = str_replace('%author', $author, $tooltip);
      $tooltip = ' title="' . esc_attr($tooltip) . '"';
    } else
      $tooltip = '';

//    Truncate the link title to nearest whole word under the length specified.
    $max_length = intval($r['max_length']) < 1 ? 9999 : intval($r['max_length']);
    if ( strlen($title) > $max_length )
      $title = substr( $title, 0, strrpos(substr($title, 0, $max_length), ' ') ) . '...';
  
    $rel = $previous ? 'prev' : 'next';

    $anchor = '<a href="'.get_permalink($post).'" rel="'.$rel.'"'.$tooltip.'>';
    $link = str_replace('%title', $title, $r['link']);
    $link = str_replace('%date', $date, $link);
    $link = $anchor . $link . '</a>';
  
    $format = str_replace('%link', $link, $r['format']);
    $format = str_replace('%title', $title, $format);
    $format = str_replace('%date', $date, $format);
    $format = str_replace('%author', $author, $format);
    if ( ($r['order_by'] == 'custom' || $r['order_by'] == 'numeric') && !empty($r['meta_key']) ) {
      $meta = get_post_meta($post->ID, $r['meta_key'], true);
      $format = str_replace('%meta', $meta, $format);
    } elseif ( $r['in_same_meta'] ) {
      $meta = get_post_meta($post->ID, $r['in_same_meta'], true);
      $format = str_replace('%meta', $meta, $format);
    }

//    Get the category list, including custom taxonomies (only if the %category variable has been used).
    if ( (strpos($format, '%category') !== false) && version_compare(PHP_VERSION, '5.0.0', '>=') ) {
      $term_list = '';
      $taxonomies = array_filter( get_post_taxonomies($post->ID), "is_taxonomy_hierarchical" );
      if ( $r['in_same_format'] && get_post_format($post->ID) )
        $taxonomies[] = 'post_format';
      foreach ( $taxonomies as &$taxonomy ) {
//        No, this is not a mistake. Yes, we are testing the result of the assignment ( = ).
//        We are doing it this way to stop it from appending a comma when there is no next term.
        if ( $next_term = get_the_term_list($post->ID, $taxonomy, '', ', ', '') ) {
          $term_list .= $next_term;
          if ( current($taxonomies) ) $term_list .= ', ';
        }
      }
      $format = str_replace('%category', $term_list, $format);
    }

//    Optionally add the post thumbnail to the link. Wrap the link in a span to aid CSS styling.
    if ( $r['thumb'] && has_post_thumbnail($post->ID) ) {
      if ( $r['thumb'] === true ) // use 'post-thumbnail' as the default size
        $r['thumb'] = 'post-thumbnail';
      $thumbnail = '<a class="post-thumbnail" href="'.get_permalink($post).'" rel="'.$rel.'"'.$tooltip.'>' . get_the_post_thumbnail( $post->ID, $r['thumb'] ) . '</a>';
      $format = $thumbnail . '<span class="post-link">' . $format . '</span>';
    }

//    If more than one link is returned, wrap them in <li> tags   
    if ( intval($r['num_results']) > 1 )
      $format = '<li>' . $format . '</li>';
    
    $output .= $format;
  }

  $output .= $r['after'];

  //  If echo is false, don't display anything. Return the link as a PHP string.
  if ( !$r['echo'] || $r['return'] === 'output' )
    return $output;

  $adjacent = $previous ? 'previous' : 'next';
  echo apply_filters( "{$adjacent}_post_link_plus", $output, $r );

  return true;
}