{%- macro fileupload(data) %}
  {% set params = setError(data) %}
  {% set params = setLabel(params) %}
  {% if params.maxFiles > 1 %}
    {% set params = setItemsLabel(params) %}
  {% endif %}
  {% set params = setInputWidthClass(params) %}

  {% set attributes = params.attributes %}

  {% if params.maxFiles > 1 or not params.slots %}
    {#- If an id 'prefix' is not passed, fall back to using the name attribute
   instead. We need this for error messages and hints as well -#}
    {% set idPrefix = params.idPrefix if params.idPrefix else 
      params.name %}

    {#- a record of other elements that we need to associate with the input using
   aria-describedby – for example hints or error messages -#}
    {% set describedBy = "" %}

    {#- Capture the HTML so we can optionally nest it in a fieldset -#}
    {% set innerHtml %}
    {% if params.hint %}
      {% set hintId = idPrefix + '-hint' %}
      {% set describedBy = describedBy + ' ' + hintId if describedBy else 
        hintId %}
      {{ govukHint({
        id: hintId,
        classes: params.hint.classes,
        attributes: params.hint.attributes,
        html: params.hint.html,
        text: params.hint.text
      }) | indent(2) | trim }}
    {% endif %}
    {% if params.errorMessage %}
      {% set errorId = idPrefix + '-error' %}
      {% set describedBy = describedBy + ' ' + errorId if describedBy else 
        errorId %}
      {{ govukErrorMessage({
        id: errorId,
        classes: params.errorMessage.classes,
        attributes: params.errorMessage.attributes,
        html: params.errorMessage.html,
        text: params.errorMessage.text,
        visuallyHiddenText: params.errorMessage.visuallyHiddenText
      }) | indent(2) | trim }}
    {% endif %}

    {% if params.slots %}
      <input type="hidden" name="{{params.name + '_slots'}}" value="{{params.slots}}">
    {% endif %}
    {% set uploadSlots %}
    {% for upload in params.fileUploads %}
      {% set upload = setLabel(upload) %}
      {% if not upload.errorMessage %}
        {% set upload = setObjectProperty(upload, 'errorMessage', params.errorMessage) %}
      {% endif %}
      {% if not upload.describedBy %}
        {% set upload = setObjectProperty(upload, 'describedBy', describedBy) %}
      {% endif %}
      {% if not upload.id %}
        {% set upload = setObjectProperty(upload, 'id', upload.name) %}
      {% endif %}
      {% if params.fileUploads.length === 1 %}
        {% set label = setObjectProperty(upload.label, 'classes', 'govuk-visually-hidden') %}
        {% set upload = setObjectProperty(upload, 'label', label) %}
      {% endif %}
      {% if attributes %}
        {% set upload = setObject(upload, {attributes: attributes}) %}
      {% endif %}
      {{ callMacro('govukFileUpload', upload) }}
      {% if upload.removeSlot %}
        <p class="fb-control--fileupload--remove">
          <button class="govuk-button govuk-button--secondary fb-action--remove" name="removeSlot" value="{{ upload.name }}">{{ upload.removeSlot | safe }}</button>
        </p>
      {% endif %}
    {% endfor %}
    {% endset %}
    {{ uploadSlots | safe }}
    {% endset -%}
  {% endif %}

  {% if params.maxFiles > 1 and params.slots > 1 %}
    <div class="fb-form-group--fileupload-multiple govuk-form-group {%- if params.errorMessage %} govuk-form-group--error{% endif %} {%- if params.formGroup.classes %} {{ params.formGroup.classes }}{% endif %}">
      {% call govukFieldset({classes: params.fieldset.classes, attributes: params.fieldset.attributes, legend: params.fieldset.legend}) %}
      {{ innerHtml | trim | safe }}
      {% endcall %}
    </div>
    {{ uploadAdditonalParts(params) }}
  {% else %}
    {% if params.slots %}
      {% set uploadParams = setObject(params.fileUploads[0], {
          label: params.label,
          hint: params.hint,
          id: params.fileUploads[0].name,
          errorMessage: params.errorMessage,
          attributes: attributes
        })
      %}
      <div class="fb-form--fileupload-single">
      {{ govukFileUpload(uploadParams) }}
      </div>
      
    {% else %}
      <div class="govuk-form-group {%- if params.errorMessage %} govuk-form-group--error{% endif %} {%- if params.formGroup.classes %} {{ params.formGroup.classes }}{% endif %}">
        {{ govukLabel(params.label) }}
        {{ innerHtml | trim | safe }}
      </div>
    {% endif %}
    {{ uploadAdditonalParts(params) }}
  {% endif %}

{% endmacro -%}

{% macro groupWrapper(params) %}
  <div class="govuk-form-group {%- if params.errorMessage %} govuk-form-group--error{% endif %} {%- if params.formGroup.classes %} {{ params.formGroup.classes }}{% endif %}">
    {{ caller() }}
  </div>
{% endmacro %}

{% macro uploadAdditonalParts(params) %}
  {% if params.addFile %}
    <p class="fb-control--fileupload--add">
      <button class="govuk-button govuk-button--secondary fb-action--add" name="addFile" value="{{ params.name }}">{{ params.addFile | safe }}</button>
    </p>
  {% endif %}
  {% if params.summaryList.length %}
    {{
      callMacro('summaryListExtended', {
          heading: params.summaryListHeading,
          rows: params.summaryList
        })
    }}
  {% endif %}
{% endmacro %}