{% from "nhsuk/components/error-message/macro.njk" import errorMessage as nhsukErrorMessage %}
{% from "nhsuk/components/hint/macro.njk" import hint as nhsukHint %}
{% from "nhsuk/components/label/macro.njk" import label as nhsukLabel %}
{% from "nhsuk/macros/attributes.njk" import nhsukAttributes %}
{% from "nhsuk/macros/content.njk" import nhsukContent %}

{#- Set classes for this component #}
{%- set classNames = "nhsuk-textarea" %}
{%- set classNamesFormGroup = "nhsuk-form-group" %}

{#- Support label as string #}
{%- set label = params.label if params.label is mapping and params.label is not escaped else {
  text: params.label if params.label is string else undefined,
  html: params.label if params.label is escaped else undefined
} %}

{#- Support hint as string #}
{%- set hint = params.hint if params.hint is mapping and params.hint is not escaped else {
  text: params.hint if params.hint is string else undefined,
  html: params.hint if params.hint is escaped else undefined
} %}

{#- Support error message as string #}
{%- set errorMessage = params.errorMessage if params.errorMessage is mapping and params.errorMessage is not escaped else {
  text: params.errorMessage if params.errorMessage is string else undefined,
  html: params.errorMessage if params.errorMessage is escaped else undefined
} %}

{%- if errorMessage.text or errorMessage.html or params.errorMessage is sameas(true) %}
  {%- set classNames = classNames ~ " nhsuk-textarea--error" %}
  {%- set classNamesFormGroup = classNamesFormGroup ~ " nhsuk-form-group--error" %}
{%- endif %}

{%- if params.classes %}
  {%- set classNames = classNames ~ " " ~ params.classes %}
{%- endif %}

{%- if params.formGroup.classes %}
  {%- set classNamesFormGroup = classNamesFormGroup ~ " " ~ params.formGroup.classes %}
{%- endif %}

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

{%- macro _textareaElement(params, parent) %}
<textarea class="{{ parent.classNames }}" id="{{ parent.id }}" name="{{ params.name }}" rows="{{ params.rows | default(5, true) }}"
  {%- if params.spellcheck is sameas(true) or params.spellcheck is sameas(false) %} spellcheck="{{ params.spellcheck | string | lower }}"{% endif %}
  {%- if params.disabled %} disabled{% endif %}
  {%- if parent.describedBy %} aria-describedby="{{ parent.describedBy }}"{% endif %}
  {%- if params.autocomplete %} autocomplete="{{ params.autocomplete }}"{% endif %}
  {{- nhsukAttributes(params.attributes) }}>{{ params.value }}</textarea>
{%- endmacro -%}

<div class="{{ classNamesFormGroup }}" {{- nhsukAttributes(params.formGroup.attributes) }}>
  {{ nhsukLabel({
    html: label.html,
    text: label.text,
    visuallyHiddenText: label.visuallyHiddenText,
    caption: label.caption,
    id: label.id,
    for: label.for | default(id),
    size: label.size,
    heading: label.heading,
    isPageHeading: label.isPageHeading,
    classes: label.classes,
    attributes: label.attributes
  }) | trim | indent(2) }}
{% if hint.text or hint.html %}
  {%- set hintId = hint.id | default(id ~ "-hint") %}
  {%- set describedBy = (describedBy ~ " " ~ hintId) | trim %}
  {{ nhsukHint({
    html: hint.html,
    text: hint.text,
    id: hint.id | default(hintId),
    classes: hint.classes,
    attributes: hint.attributes
  }) | trim | indent(2) }}
{% endif %}
{% if errorMessage.text or errorMessage.html %}
  {%- set errorId = errorMessage.id | default(id ~ "-error") %}
  {%- set describedBy = (describedBy ~ " " ~ errorId) | trim %}
  {{ nhsukErrorMessage({
    html: errorMessage.html,
    text: errorMessage.text,
    visuallyHiddenText: errorMessage.visuallyHiddenText,
    id: errorMessage.id | default(errorId),
    classes: errorMessage.classes,
    attributes: errorMessage.attributes
  }) | trim | indent(2) }}
{% endif %}
  {{ nhsukContent({
    html: _textareaElement(params, {
      id: id,
      describedBy: describedBy,
      classNames: classNames
    }) | trim,
    slots: {
      before: params.formGroup.beforeInput,
      after: params.formGroup.afterInput
    }
  }) | trim | indent(2) }}
</div>