{#
/**
 * @file
 * Template for the structural pages menu block.
 *
 * Available variables:
 * - ancestor: The ancestor entity (term, user, or group).
 * - tree: Array of menu tree items, each containing:
 *   - id: Node ID.
 *   - title: Node title.
 *   - url: Node URL.
 *   - depth: Current depth level.
 *   - children: Array of child items.
 *   - entity: The node entity.
 * - active_trail: Array of node IDs in the active trail.
 * - show_ancestor_title: Whether to show the ancestor title as header.
 */
#}
{{ attach_library('structural_pages/menu') }}
{% if tree is not empty %}
<nav class="block-menu navigation structural-pages-menu" aria-label="{{ 'Site structure navigation'|t }}">
  {% if show_ancestor_title and ancestor %}
    <h2 class="structural-pages-menu__title block-title">
      <span>
      {% if ancestor_url %}
        <a href="{{ ancestor_url }}">{{ ancestor.label }}</a>
      {% else %}
        {{ ancestor.label }}
      {% endif %}
      </span>
    </h2>
  {% endif %}

  <div class="block-content">
    <ul class="gva_menu structural-pages-menu__list structural-pages-menu__list--level-1">
      {% for item in tree %}
        {{ _self.menu_item(item, active_trail, 1) }}
      {% endfor %}
    </ul>
  </div>
</nav>
{% endif %}

{% macro menu_item(item, active_trail, depth) %}
  {% set is_active = item.id in active_trail %}
  {% set has_children = item.children is not empty %}
  {% set classes = [
    'menu-item',
    'structural-pages-menu__item',
    'structural-pages-menu__item--level-' ~ depth,
    is_active ? 'menu-item--active-trail structural-pages-menu__item--active-trail',
    has_children ? 'menu-item--expanded structural-pages-menu__item--has-children',
  ] %}

  <li{{ create_attribute().addClass(classes) }}>
    <a href="{{ item.url }}"{% if item.is_redirect %} target="_blank"{% endif %} class="structural-pages-menu__link{% if is_active %} is-active structural-pages-menu__link--active-trail{% endif %}">
      {{- item.title -}}
    </a>

    {% if has_children %}
      <ul class="menu sub-menu structural-pages-menu__list structural-pages-menu__list--level-{{ depth + 1 }}">
        {% for child in item.children %}
          {{ _self.menu_item(child, active_trail, depth + 1) }}
        {% endfor %}
      </ul>
    {% endif %}
  </li>
{% endmacro %}