<?php
if (!defined('ABSPATH')) {
  die('-1');
}

abstract class QuadMenuItem {

  protected $type = 'unknown';
  protected $ID = 0;
  protected $source_id = 0;
  protected $output;
  protected $item;
  protected $depth;
  protected $args;
  protected $id;
  protected $walker;
  protected $dropdown_classes = array();
  protected $dropdown_ul_classes = array();
  protected $item_classes = array(0 => '');
  protected $item_atts = array();
  protected $dropdown_style = array();
  protected $has_children = false;
  protected $thumbnail = '';
  protected $description = '';
  private $prefix = '#quadmenu-';

  function __construct(&$output, &$item, $depth = 0, &$args = array(), $id = 0, &$walker, $has_children = false, $children_elements = false) {

    $this->output = &$output;
    $this->item = &$item;
    $this->depth = $depth;
    $this->args = &$args;
    $this->id = $id;
    $this->walker = &$walker;
    $this->source_id = $this->item->db_id;
    $this->has_children = $has_children;
    $this->children_elements = $children_elements;

    // Properties
    // ---------------------------------------------------------------------

    $this->item->columns = array_filter((array) $this->item->columns);
    $this->item->animation = new stdClass();

    // Arguments
    // ---------------------------------------------------------------------
    $this->args->has_title = (bool) $this->item->title;
    $this->args->has_icon = (bool) $this->item->icon;
    $this->args->has_link = (bool) $this->item->url;
    $this->args->has_caret = $this->args->has_dropdown = $this->has_children;
    $this->args->has_submenu = (0 < $this->depth && $this->args->has_dropdown);
    $this->args->has_subtitle = (bool) $this->item->subtitle;
    $this->args->has_badge = (bool) $this->item->badge;
    $this->args->has_background = (bool) $this->item->background;
    $this->args->has_description = (bool) $this->item->description;
    $this->args->has_thumbnail = false;
    $this->args->has_columns = array_filter((array) $this->item->columns);

    $this->init();

    $this->remove_item_url();

    $this->add_item_dropdown_classes();

    $this->add_item_dropdown_ul_classes();

    $this->add_item_animations();
  }

  function add_item_animations() {

    $this->item->animation->title = '';
    $this->item->animation->subtitle = '';
    $this->item->animation->icon = '';
    $this->item->animation->badge = '';

    if ($this->depth > 0) {
      if (!empty($this->args->dropdown_animation_badge)) {
        $this->item->animation->text = join(' ', array_map('sanitize_html_class', (array) $this->args->dropdown_animation_text));
      }
      if (!empty($this->args->dropdown_animation_subtitle)) {
        $this->item->animation->subtitle = join(' ', array_map('sanitize_html_class', (array) $this->args->dropdown_animation_subtitle));
      }
      if (!empty($this->args->dropdown_animation_badge)) {
        $this->item->animation->badge = join(' ', array_map('sanitize_html_class', (array) $this->args->dropdown_animation_badge));
      }
      if (!empty($this->args->dropdown_animation_icon)) {
        $this->item->animation->icon = join(' ', array_map('sanitize_html_class', (array) $this->args->dropdown_animation_icon));
      }
    } else {
      if (!empty($this->args->navbar_animation_badge)) {
        $this->item->animation->text = join(' ', array_map('sanitize_html_class', (array) $this->args->navbar_animation_text));
      }
      if (!empty($this->args->navbar_animation_subtitle)) {
        $this->item->animation->subtitle = join(' ', array_map('sanitize_html_class', (array) $this->args->navbar_animation_subtitle));
      }
      if (!empty($this->args->navbar_animation_badge)) {
        $this->item->animation->badge = join(' ', array_map('sanitize_html_class', (array) $this->args->navbar_animation_badge));
      }
      if (!empty($this->args->navbar_animation_icon)) {
        $this->item->animation->icon = join(' ', array_map('sanitize_html_class', (array) $this->args->navbar_animation_icon));
      }
    }
  }

  function start_el() {
    $this->output.= apply_filters('quadmenu_nav_menu_start_el', $this->get_start_el(), $this->item, $this->depth, $this->args);
  }

  function end_el() {
    $this->output.= apply_filters('quadmenu_nav_menu_end_el', $this->get_end_el(), $this->item, $this->depth, $this->args);
  }

  function start_lvl() {
    $this->output.= $this->get_dropdown_wrap_start();
  }

  function end_lvl() {
    $this->output.= $this->get_dropdown_wrap_end();
  }

  abstract function get_start_el();

  function get_end_el() {
    $item_output = '</li>';
    return $item_output;
  }

  function init() {
    
  }

  function add_item_classes() {

    $this->item_classes[] = 'menu-item-' . $this->item->ID;

    if (is_array($this->item->classes)) {
      $this->item_classes = array_merge($this->item_classes, $this->item->classes);
    }
  }

  function add_item_classes_current() {

    if ($this->args->layout_current) {
      //$parent = (bool) array_search('current-menu-parent', $this->item->classes);
      //$current = (bool) array_search('current-menu-item', $this->item->classes);
      //if ($parent || $current) {
      //  $this->item_classes[] = 'open';
      //}
      if (count(array_intersect(array('current-menu-ancestor'), $this->item->classes))) {
        $this->item_classes[] = 'open';
      }
    }
  }

  function add_item_classes_prefix() {

    $this->item_classes = array_diff($this->item_classes, array('menu-item-type-custom', 'menu-item-type-post_type', 'menu-item-type-post_type_archive'));

    foreach ($this->item_classes as $i => $class) {

      if (!in_array(sanitize_key($class), array('open', 'active'))) {

        if (substr($class, 0, 9) == 'menu-item') {
          $this->item_classes[$i] = str_replace('menu-item', 'quadmenu-item', $class);
        }

        //if ($class == 'current-menu-ancestor') {
        //    $this->item_classes[$i] = 'quadmenu-current-menu-ancestor';
        //}
        //if ($class == 'current-menu-parent') {
        //    $this->item_classes[$i] = 'quadmenu-current-menu-parent';
        //}
        //if ($class == 'current-menu-item') {
        //    $this->item_classes[$i] = 'quadmenu-current-menu-item';
        //}
      }
    }
  }

  function add_item_classes_quadmenu() {

    $this->item_classes[] = 'quadmenu-item-type-' . $this->type;

    $this->item_classes[] = 'quadmenu-item-level-' . $this->depth;

    $this->item_classes[] = $this->args->has_dropdown ? 'quadmenu-dropdown' : '';

    $this->item_classes[] = $this->args->has_submenu ? 'quadmenu-dropdown-submenu' : '';

    $this->item_classes[] = $this->args->has_subtitle ? 'quadmenu-has-subtitle' : '';

    $this->item_classes[] = $this->args->has_badge ? 'quadmenu-has-badge' : '';

    $this->item_classes[] = $this->args->has_caret ? 'quadmenu-has-caret' : '';

    $this->item_classes[] = $this->args->has_description ? 'quadmenu-has-description' : '';

    $this->item_classes[] = $this->args->has_thumbnail ? 'quadmenu-has-image-' . $this->item->thumb : '';

    $this->item_classes[] = $this->args->has_title ? 'quadmenu-has-title' : '';

    $this->item_classes[] = $this->args->has_icon ? 'quadmenu-has-icon' : '';

    $this->item_classes[] = $this->args->has_link || $this->args->has_dropdown ? 'quadmenu-has-link' : '';

    $this->item_classes[] = $this->args->has_background ? 'quadmenu-has-background' : '';

    if (!empty($this->item->float)) {
      $this->item_classes[] = 'quadmenu-float-' . $this->item->float;
    }

    if (!empty($this->item->dropdown)) {
      $this->item_classes[] = 'quadmenu-dropdown-' . $this->item->dropdown;
    }

    if (!empty($this->item->hidden)) {
      $this->item_classes[] = join(' ', array_map('sanitize_html_class', (array) $this->item->hidden));
    }

    //if (!empty($this->args->navbar_animation_link)) {
    //    $this->item_classes[] = join(' ', array_map('sanitize_html_class', (array) $this->args->navbar_animation_link));
    //}
  }

  function add_item_classes_maxheight() {

    if ($this->args->layout_dropdown_maxheight) {
      $this->item_classes[] = 'dropdown-maxheight';
    }
  }

  function get_item_id() {

    return ' id="menu-item-' . esc_attr($this->item->ID) . '"';
  }

  function get_item_classes() {
    $class_names = join(' ', apply_filters('quadmenu_nav_menu_css_class', array_filter($this->item_classes), $this->item, $this->args));
    $class_names = $class_names ? ' class="' . esc_attr($class_names) . '"' : '';
    return $class_names;
  }

  function add_link_atts() {

    $this->item_atts['title'] = !empty($this->item->attr_title) ? $this->item->attr_title : '';

    $this->item_atts['target'] = !empty($this->item->target) ? '_blank' : '';

    $this->item_atts['rel'] = !empty($this->item->xfn) ? $this->item->xfn : '';

    $this->item_atts['href'] = !empty($this->item->url) ? $this->item->url : 'javascript:void(0)';

    $this->item_atts = apply_filters('quadmenu_nav_menu_link_atts', $this->item_atts, $this->item, $this->args);
  }

  function add_link_atts_toggle() {

    if ($this->has_children) {
      $this->item_atts['class'] = 'quadmenu-dropdown-toggle ' . $this->args->layout_trigger;
    }
  }

  function add_dropdown_background() {

    if (!$this->args->has_background)
      return;

    $_src = wp_get_attachment_image_src($this->item->background['thumbnail-id'], 'full');

    if (empty($_src[0]))
      return;

    ob_start();
    ?>
    <div class="quadmenu-dropdown-background" style="
         background-image: url('<?php echo esc_url($_src[0]); ?>');
         background-position: <?php echo esc_attr($this->item->background['position']); ?>;
         background-repeat: <?php echo esc_attr($this->item->background['repeat']); ?>;
         background-size: <?php echo esc_attr($this->item->background['size']); ?>;
         background-origin: <?php echo esc_attr($this->item->background['origin']); ?>;
         opacity: <?php echo esc_attr($this->item->background['opacity'] / 100); ?>">
    </div>
    <?php
    return ob_get_clean();
  }

  function get_link_attr() {

    $atts = '';

    foreach ($this->item_atts as $attr => $value) {

      if (empty($value))
        continue;

      if ($attr == 'href') {
        $value = esc_url($value);
      } elseif ($attr == 'title') {
        $value = esc_html($value);
      } else {
        $value = esc_attr($value);
      }

      $atts .= ' ' . esc_attr($attr) . '="' . $value . '"';
    }

    return $atts;
  }

  function get_link() {

    ob_start();
    ?>
    <?php echo $this->args->before; ?>
    <a <?php echo $this->get_link_attr(); ?>>
      <span class="quadmenu-item-content">
        <?php echo $this->args->link_before; ?>
        <?php echo $this->get_thumbnail(); ?>
        <?php echo $this->get_caret(); ?>
        <?php echo $this->get_icon(); ?>
        <?php echo $this->get_title(); ?>
        <?php echo $this->get_badge(); ?>
        <?php echo $this->get_subtitle(); ?>
        <?php echo $this->get_description(); ?>
        <?php echo $this->args->link_after; ?>
      </span>
    </a>
    <?php echo $this->args->after; ?>
    <?php
    return ob_get_clean();
  }

  function get_caret() {
    if ($this->args->has_caret) {
      ob_start();
      ?>
      <span class="quadmenu-caret<?php //echo join(' ', array_map('sanitize_html_class', (array) $this->args->navbar_animation_caret));              ?>"></span>
      <?php
      return ob_get_clean();
    }
  }

  function get_icon() {

    if ($this->args->has_icon && $this->item->icon) {
      ob_start();
      ?>
      <span class="quadmenu-icon <?php echo esc_attr($this->item->icon); ?> <?php echo esc_attr($this->item->animation->icon); ?>"></span>
      <?php
      return ob_get_clean();
    }
  }

  function get_title() {
    if ($this->args->has_title) {
      ob_start();
      ?>
      <span class="quadmenu-text <?php echo esc_attr($this->item->animation->text); ?>"><?php echo $this->item->title; ?></span>
      <?php
      return ob_get_clean();
    }
  }

  function get_subtitle() {

    if (!empty($this->args->has_subtitle)) {
      ob_start();
      ?>
      <span class="quadmenu-subtitle <?php echo esc_attr($this->item->animation->subtitle); ?>"><?php echo esc_attr($this->item->subtitle); ?></span>
      <?php
      return ob_get_clean();
    }
  }

  function get_badge() {

    if (!empty($this->args->has_badge)) {
      ob_start();
      ?>
      <span class="quadmenu-badge <?php echo esc_attr($this->item->animation->badge); ?>"><span class="quadmenu-badge-bubble"><?php echo esc_attr($this->item->badge); ?></span></span>
      <?php
      return ob_get_clean();
    }
  }

  function get_thumbnail() {
    if (!empty($this->args->has_thumbnail)) {
      return get_the_post_thumbnail($this->item->object_id, $this->item->thumb);
    }
  }

  function get_description() {
    if (!empty($this->args->has_description)) {
      ob_start();
      ?>
      <span class="quadmenu-description"><?php echo esc_html($this->item->description); ?></span>
      <?php
      return ob_get_clean();
    }
  }

  function add_item_dropdown_classes() {

    $this->dropdown_classes = array_merge($this->dropdown_classes, array_map('sanitize_html_class', (array) $this->args->layout_animation));

    $this->dropdown_classes[] = 'quadmenu-dropdown-menu';
  }

  function add_item_dropdown_ul_classes() {
    
  }

  function get_dropdown_ul_style() {
    if (!empty($this->dropdown_style)) {
      return ' style="' . join(';', $this->dropdown_style) . '"';
    }
  }

  function get_dropdown_ul_classes() {

    if (!empty($this->dropdown_ul_classes)) {

      $class_names = join(' ', $this->dropdown_ul_classes);
      $class_names = $class_names ? ' class="' . esc_attr($class_names) . '"' : '';
      return $class_names;
    }
  }

  function get_dropdown_ul_data() {
    
  }

  function get_dropdown_wrap_start() {
    ob_start();
    ?>
    <div id="dropdown-<?php echo esc_attr($this->item->ID); ?>" class="<?php echo join(' ', array_map('sanitize_html_class', $this->dropdown_classes)); ?>">
      <?php echo $this->add_dropdown_background(); ?>
      <ul<?php echo $this->get_dropdown_ul_style(); ?><?php echo $this->get_dropdown_ul_classes(); ?><?php echo $this->get_dropdown_ul_data(); ?>>
        <?php
        return ob_get_clean();
      }

      function get_dropdown_wrap_end() {
        ob_start();
        ?>
      </ul>
    </div>
    <?php
    return ob_get_clean();
  }

  function remove_item_url() {

    if (empty($this->item->url))
      return;

    if (strpos($this->item->url, $this->prefix) !== false) {
      $this->item->url = '';
    }
  }

  function clean_item_content($content) {

    $content = preg_replace('/\[[\/]?[^\]]*\]/', '', $content);

    $content = html_entity_decode($content);

    $content = wp_strip_all_tags($content, true);

    return $content;
  }

}