{#
/**
 * @file
 * Theme override to display a menu.
 *
 * Available variables:
 * - menu_name: The machine name of the menu.
 * - items: A nested list of menu items. Each menu item contains:
 *   - attributes: HTML attributes for the menu item.
 *   - below: The menu item child items.
 *   - title: The menu link title.
 *   - url: The menu link url, instance of \Drupal\Core\Url
 *   - localized_options: Menu link localized options.
 *   - is_expanded: TRUE if the link has visible children within the current
 *     menu tree.
 *   - is_collapsed: TRUE if the link has children within the current menu tree
 *     that are not currently visible.
 *   - in_active_trail: TRUE if the link is in the active trail.
 */
#}
{% import _self as menus %}

{#
  We call a macro which calls itself to render the full tree.
  @see http://twig.sensiolabs.org/doc/tags/macro.html
#}
{{ menus.menu_links(items, attributes, 0) }}

{% macro menu_links( items, attributes, menu_level ) %}
  {% import _self as menus %}
  {% if items %}
    {% if menu_level == 0 %}
      {% set classes = ['nav','navbar-nav','mt-2','mt-md-0'] %}
      <ul{{ attributes.addClass(classes) }}>
        {% for item in items %}
          {%
          set classes_list_item = [
            'nav-item',
            item.is_expanded ? 'dropdown',
          ]
        %}
          {%
          set classes_link = [
            'nav-item',
            'nav-link',
            item.is_expanded ? 'dropdown-toggle',
            item.is_collapsed ? 'dropdown-toggle',
            item.in_active_trail ? 'active',
          ]
        %}
          <li{{ item.attributes.addClass(classes_list_item) }}>
            {% if item.below %}
              {{ link(item.title, item.url, { 'class': classes_link, 'data-toggle' : 'dropdown' }) }}
              {{ menus.menu_links(item.below, attributes, menu_level + 1) }}
            {% else %}
              {{ link(item.title, item.url, { 'class': classes_link }) }}
            {% endif %}
          </li>
        {% endfor %}
      </ul>
    {% else %}
      <div class="dropdown-menu animate slideIn">
        {% for item in items %}
          {%
      set classes_link = [
      'dropdown-item',
      item.is_expanded ? 'dropdown-toggle',
      item.is_collapsed ? 'dropdown-toggle',
      item.in_active_trail ? 'active',
    ]
    %}
          {{ link(item.title, item.url, { 'class': classes_link }) }}
          {% if item.below %}
            {{ menus.menu_links(item.below, attributes, menu_level + 1) }}
          {% endif %}
        {% endfor %}
      </div>
    {% endif %}
  {% endif %}
{% endmacro %}

{# {% macro sub_menu(items, menu_level) %}
  <div class="dropdown-menu animate slideIn">
    {% for item in items %}
      {%
        set classes_link = [
        'dropdown-item',
        item.is_expanded ? 'dropdown-toggle',
        item.is_collapsed ? 'dropdown-toggle',
        item.in_active_trail ? 'active',
      ]
      %}
      {{ link(item.title, item.url, { 'class': classes_link }) }}
      {% if item.below %}
        {{ menus.menu_links(item.below, attributes, menu_level + 1) }}
      {% endif %}
    {% endfor %}
  </div>
{% endmacro %} #}