/**
 * @name      functions.php
 * @uses      Functions for the iwy bootstrap3 theme
 * @author    Joel Garcin
 * @copyright IwebYou
 * @package   IwY Bootstrap
 * @version   3.2.3
 */

add_action( 'after_setup_theme', 'my_child_theme_setup' );
function my_child_theme_setup() {
  load_child_theme_textdomain( 'child', get_stylesheet_directory() . '/languages' );
}

remove_action( 'init', 'iwy_sidebar_class' );

function iwy_sidebar_class( $sidebar_name ) {
  global $sidebars_widgets;

  if ( isset($sidebars_widgets[$sidebar_name]) ) {
    $count = count($sidebars_widgets[$sidebar_name]);
  } else {
    $count = 0;
  }

  switch ( $count ) {
    case '1':
      $class = 'col-md-12';
      break;
    case '2':
      $class = 'col-md-6 col-sm-6';
      break;
    case '3':
      $class = 'col-md-4';
      break;
    case '4':
      $class = 'col-md-3 col-xs-6';
      break;
    case '6':
      $class = 'col-md-4 col-sm-6';
      break;
    default:
      $class = 'col-md-12';
      break;
  }

  return $class;
}

/**
 * Callback function to display galleries (in HTML5)
 *
 * @param string $content
 * @param array $attr
 *
 * @return string
 */
function iwy_post_gallery($content, $attr) {
  global $instance, $post;
  $instance ++;

  // We're trusting author input, so let's at least make sure it looks like a valid orderby statement
  if (isset( $attr['orderby'] )) {
    $attr ['orderby'] = sanitize_sql_orderby( $attr ['orderby'] );
    if (!$attr ['orderby'])
      unset( $attr['orderby'] );
  }

  extract ( shortcode_atts( array(
      'order' => 'ASC',
      'orderby' => 'menu_order ID',
      'id' => 'gallery',
      'itemtag' => 'figure',
      'icontag' => 'div',
      'captiontag' => 'figcaption',
      'columns' => 3,
      'size' => 'thumbnail',
      'include' => '',
      'exclude' => '',
      'align' => '',
      'link' => 'file'
  ), $attr ) );

  $id = intval( $id );
  if ('RAND' == $order)
    $orderby = 'none';

  if ($include) {
    $include = preg_replace('/[^0-9,]+/','', $include );
    $_attachments = get_posts( array(
        'include'        => $include,
        'post_status'    => 'inherit',
        'post_type'      => 'attachment',
        'post_mime_type' => 'image',
        'order'          => $order,
        'orderby'        => $orderby
    ) );

    $attachments = array();
    foreach ( $_attachments as $key => $val ) {
      $attachments[$val->ID] = $_attachments[$key];
    }
  } elseif ($exclude) {
    $exclude = preg_replace('/[^0-9,]+/','', $exclude );
    $attachments = get_children( array(
        'post_parent' => $id,
        'exclude' => $exclude,
        'post_status' => 'inherit',
        'post_type' => 'attachment',
        'post_mime_type' => 'image',
        'order' => $order,
        'orderby' => $orderby
    ) );
  } else {
    $attachments = get_children( array(
        'post_parent' => $id,
        'post_status' => 'inherit',
        'post_type' => 'attachment',
        'post_mime_type' => 'image',
        'order' => $order,
        'orderby' => $orderby
    ) );
  }

  if (empty( $attachments ))
    return;

  if (is_feed()) {
    $output = "\n";
    foreach ( $attachments as $att_id => $attachment )
      $output .= wp_get_attachment_link( $att_id, $size, true ) . "\n";
    return $output;
  }

  $output = '';
  $itemtag = tag_escape( $itemtag );
  $captiontag = tag_escape( $captiontag );
  $columns = intval ( min( array(
      8,
      $columns
  ) ) );
  $float = (is_rtl ()) ? 'right' : 'left';

  $selector = "gallery-{$instance}";
  $size_class = sanitize_html_class( $size );

  $output .= "<ul id='$selector' class=\"row gallery gallery-id-{$id} gallery-columns-{$columns} gallery-size-{$size_class} thumbnails\">";

  $i = 0;
  foreach ( $attachments as $id => $attachment ) {
    $comments = get_comments( array(
        'post_id' => $id,
        'count'   => true,
        'type'    => 'comment',
        'status'  => 'approve'
    ) );

    $link = wp_get_attachment_image( $id, $size, !(isset( $attr['link'] ) and 'file' == $attr['link']), array('class'=>'img-responsive aligncenter') );

    if ( isset($attr['link']) ) {
      if ( $attr['link'] == 'none') {
        $link = $link;
        $modal = '';
      } elseif ( $attr['link'] == 'file') {

        if ($captiontag and (0 < $comments or trim( $attachment->post_excerpt ))) {
          $comments = (0 < $comments) ? sprintf( _n('%d comment','%d comments', $comments, 'iwy'), $comments ) : '';
          $excerpt = wptexturize ('<strong><a href="'. get_attachment_link( $id ) .'">'. $attachment->post_excerpt .'</a></strong>');
          $out = ($comments and $excerpt) ? " $excerpt <br /> $comments " : " $excerpt$comments ";
        } else {
          $out = '';
        }

        $link = '<a href="#gallery-'. $id .'" data-toggle="modal" data-target="#gallery-'. $id .'">' . $link . '</a>';
        $modal = '<div class="modal fade" id="gallery-'. $id .'" tabindex="-1" role="dialog" aria-labelledby="gallerylabel-'. $id .'" aria-hidden="true">
                        <div class="modal-dialog">
                          <div class="modal-content">
                            <div class="modal-header">
                              <button type="button" class="close" data-dismiss="modal" aria-hidden="true">&times;</button>
                              <h4 id="gallerylabel-'. $id .'" class="modal-title">'. get_the_title($id) .'</h4>
                            </div>
                            <div class="modal-body">
                              <p>'. wp_get_attachment_image( $id, 'large') .'</p>
                            </div>
                            <div class="modal-footer">'. $out .'</div>
                          </div><!-- /.modal-content -->
                        </div><!-- /.modal-dialog -->
                      </div><!-- /.modal -->';
      }
    } else {
      $link = '<a itemprop="thumbnailURL" href="'. get_attachment_link( $id ) .'">' . $link . '</a>';
      $modal = '';
    }

    $span = 'col-xs-6 col-sm-4 '. floor( 12 / $columns * 3 ) .' col-md-'. floor( 12 / $columns );

    $output .= "<li class=\"{$span} text-center\"><{$itemtag} class=\"gallery-item img-thumbnail img-responsive\">";
    $output .= "<{$icontag} class=\"gallery-icon\">{$link}</{$icontag}>\n";

    if ($captiontag and (0 < $comments or trim ( $attachment->post_excerpt ))) {
      $comments = (0 < $comments) ? sprintf( _n ('%d comment','%d comments', $comments, 'iwy'), $comments ) : '';
      $excerpt = wptexturize ( $attachment->post_excerpt );
      $out = ($comments and $excerpt) ? " $excerpt <br /> $comments " : " $excerpt$comments ";
      $output .= "<{$captiontag} class=\"wp-caption-text gallery-caption\">{$out}</{$captiontag}>\n";
    }

    $output .= "</{$itemtag}>{$modal}</li>\n";
  }
  $output .= "</ul>\n";

  return '<div class="'. $align .'">'. $output .'</div>';


}

add_filter('post_gallery','iwy_post_gallery', 10, 2 );
?>