{% from "../error-message/macro.njk" import govukErrorMessage %}
{% from "../hint/macro.njk" import govukHint %}
{% from "../label/macro.njk" import govukLabel %}

{#- 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 hasPrefix = true if params.prefix and (params.prefix.text or params.prefix.html) else false %}
{%- set hasSuffix = true if params.suffix and (params.suffix.text or params.suffix.html) else false %}

{%- macro _inputElement(params) -%}
  <input class="govuk-input {%- if params.classes %} {{ params.classes }}{% endif %} {%- if params.errorMessage %} govuk-input--error{% endif %}" id="{{ params.id }}" name="{{ params.name }}" type="{{ params.type | default("text", true) }}"
    {%- if (params.spellcheck === false) or (params.spellcheck === true) %} spellcheck="{{ params.spellcheck }}"{% endif %}
    {%- if params.value %} value="{{ params.value }}"{% endif %}
    {%- if params.disabled %} disabled{% endif %}
    {%- if describedBy %} aria-describedby="{{ describedBy }}"{% endif %}
    {%- if params.autocomplete %} autocomplete="{{ params.autocomplete }}"{% endif %}
    {%- if params.pattern %} pattern="{{ params.pattern }}"{% endif %}
    {%- if params.inputmode %} inputmode="{{ params.inputmode }}"{% endif %}
    {%- for attribute, value in params.attributes %} {{ attribute }}="{{ value }}"{% endfor %}>
{%- endmacro -%}

{%- macro _affixItem(affix, type) %}
  <div class="govuk-input__{{ type }} {%- if affix.classes %} {{ affix.classes }}{% endif %}" aria-hidden="true" {%- for attribute, value in affix.attributes %} {{ attribute }}="{{ value }}"{% endfor %}>
    {{- affix.html | safe | trim | indent(4) if affix.html else affix.text -}}
  </div>
{%- endmacro -%}

<div class="govuk-form-group {%- if params.errorMessage %} govuk-form-group--error{% endif %} {%- if params.formGroup.classes %} {{ params.formGroup.classes }}{% endif %}" {%- for attribute, value in params.formGroup.attributes %} {{ attribute }}="{{ value }}"{% endfor %}>
  {{ govukLabel({
    html: params.label.html,
    text: params.label.text,
    classes: params.label.classes,
    isPageHeading: params.label.isPageHeading,
    attributes: params.label.attributes,
    for: params.id
  }) | trim | indent(2) }}
{% if params.hint %}
  {% set hintId = params.id + '-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
  }) | trim | indent(2) }}
{% endif %}
{% if params.errorMessage %}
  {% set errorId = params.id + '-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
  }) | trim | indent(2) }}
{% endif %}

{%- if hasPrefix or hasSuffix %}
  <div class="govuk-input__wrapper">
    {% if hasPrefix %}
      {{- _affixItem(params.prefix, "prefix") | indent(2, true) }}
    {% endif %}
    {{ _inputElement(params) }}
    {% if hasSuffix %}
      {{- _affixItem(params.suffix, "suffix") | indent(2, true) }}
    {% endif %}
  </div>
{% else %}
  {{ _inputElement(params) }}
{% endif %}
</div>