{#
/**
 * @file
 * Theme override for a section of the help page.
 *
 * This implementation divides the links into 4 columns.
 *
 * Available variables:
 * - title: The section title.
 * - description: The description text for the section.
 * - links: Links to display in the section.
 * - empty: Text to display if there are no links.
 * - plugin_id: The help section plugin ID.
 */
#}
<div class="clearfix">
  <h2 id="{{ plugin_id|clean_id }}">{{ title }}</h2>
  <p>{{ description }}</p>
  {% if links %}
    {# Calculate the column length, to divide links into 4 columns. #}
    {% set size = links|length // 4 %}
    {% if size * 4 < links|length %}
      {% set size = size + 1 %}
    {% endif %}

    {# Output the links in 4 columns. #}
    {% set count = 0 %}
    {% for link in links %}
      {% if count == 0 %}
        {# Start a new column. #}
        <div class="layout-column layout-column--quarter"><ul>
      {% endif %}
      <li>{{ link }}</li>
      {% set count = count + 1 %}
      {% if count >= size %}
        {# End the current column. #}
        {% set count = 0 %}
        </ul></div>
      {% endif %}
    {% endfor %}

    {# End the last column, if one is open. #}
    {% if count > 0 %}
      </ul></div>
    {% endif %}
  {% else %}
    <p>{{ empty }}</p>
  {% endif %}
</div>
