{% from "govuk/components/date-input/macro.njk" import govukDateInput %}

{% set fieldErrors = params.casaErrors[params.namePrefix] %}
{% set hasSuffixHighlights = true if fieldErrors[0].focusSuffix.length else false %}

{%- set inputErrorClass %}
  {{ 'govuk-input--error' if fieldErrors }}
{% endset -%}

{# Build up attributes #}
{% set mergedAttributes = params.attributes or {} %}
{% if fieldErrors %}
  {% set mergedAttributes = mergeObjects(mergedAttributes, {
    'data-validation': {fn: params.namePrefix, va: fieldErrors[0].validator} | dump
  }) %}
{% endif %}

{# Merge parameters #}
{% set mergedParams = mergeObjects(params, {
  id: params.id if params.id else 'f-' + params.namePrefix,
  namePrefix: '',
  attributes: mergedAttributes,
  items: [
    mergeObjectsDeep({
      label: t('macros:dateInput.day'),
      classes: 'govuk-input--width-2 ' + (inputErrorClass if includes(fieldErrors[0].focusSuffix, '[dd]') or not hasSuffixHighlights)
    }, params.items[0] if params.items[0] else {}, {
      id: 'f-' + params.namePrefix + '[dd]',
      name: params.namePrefix + '[dd]',
      value: params.casaValue.dd
    }),
    mergeObjectsDeep({
      label: t('macros:dateInput.month'),
      classes: 'govuk-input--width-2 ' + (inputErrorClass if includes(fieldErrors[0].focusSuffix, '[mm]') or not hasSuffixHighlights)
    }, params.items[1] if params.items[1] else {}, {
      id: 'f-' + params.namePrefix + '[mm]',
      name: params.namePrefix + '[mm]',
      value: params.casaValue.mm
    }),
    mergeObjectsDeep({
      label: t('macros:dateInput.year'),
      classes: 'govuk-input--width-4 ' + (inputErrorClass if includes(fieldErrors[0].focusSuffix, '[yyyy]') or not hasSuffixHighlights)
    }, params.items[2] if params.items[2] else {}, {
      id: 'f-' + params.namePrefix + '[yyyy]',
      name: params.namePrefix + '[yyyy]',
      value: params.casaValue.yyyy
    })
  ],
  errorMessage: {
    text: t(params.casaErrors[params.namePrefix][0].inline, params.casaErrors[params.namePrefix][0].variables)
  } if params.casaErrors[params.namePrefix] else null
}) %}


{{ govukDateInput(mergedParams) }}