{#
/**
 * @file
 * Default theme implementation for status messages.
 *
 * Displays status, error, and warning messages, grouped by type.
 *
 * An invisible heading identifies the messages for assistive technology.
 * Sighted users see a colored box. See http://www.w3.org/TR/WCAG-TECHS/H69.html
 * for info.
 *
 * Add an ARIA label to the contentinfo area so that assistive technology
 * user agents will better describe this landmark.
 *
 * Available variables:
 * - message_list: List of messages to be displayed, grouped by type.
 * - status_headings: List of all status types.
 * - display: (optional) May have a value of 'status' or 'error' when only
 *   displaying messages of that specific type.
 * - attributes: HTML attributes for the element, including:
 *   - class: HTML classes.
 *
 * @ingroup templates
 *
 * @see template_preprocess_status_messages()
 */
#}
{# Save original attribute classes. This is needed to override in loop below. #}
{# @see https://www.drupal.org/project/bootstrap/issues/2892936 #}
{% set classes = attributes.offsetGet('class')|default({}) %}
{%
  set status_heading = {
    'status': 'Status message'|t,
    'error': 'Error message'|t,
    'warning': 'Warning message'|t,
    'info': 'Informative message'|t,
  }
%}
{%
  set status_classes = {
    'status': 'success',
    'error': 'danger',
    'warning': 'warning',
    'info': 'info',
  }
%}
{%
  set status_roles = {
    'status': 'status',
    'error': 'alert',
    'warning': 'alert',
    'info': 'status',
  }
%}
<div data-drupal-messages>
  <div class="messages__wrapper">
  {% for type, messages in message_list %}
    {%
      set message_classes = [
        'alert',
        'alert-' ~ status_classes[type],
        'alert-dismissible',
      ]
    %}
    {# Reset the attribute classes and then add the message specific classes. #}
    <div{{ attributes.setAttribute('class', classes).addClass(message_classes).setAttribute('role', status_roles[type]).setAttribute('aria-label', status_headings[type]) }}>
      <button type="button" role="button" class="close" data-dismiss="alert" aria-label="{{ 'Close'|t }}"><span aria-hidden="true">&times;</span></button>
      {% if status_headings[type] %}
        <h2 class="sr-only">{{ status_headings[type] }}</h2>
      {% endif %}
      {% if messages|length > 1 %}
        <ul class="item-list item-list--messages">
          {% for message in messages %}
            <li class="item item--message">{{ message }}</li>
          {% endfor %}
        </ul>
      {% else %}
        <p>{{ messages|first }}</p>
      {% endif %}
    </div>
  {% endfor %}
  </div>
</div>
