module QuestionViewHelper
  def caption(caption_text, page_header, conditional)
    return nil unless caption_text && page_header.blank? && !conditional

    { text: caption_text.html_safe, size: "l" }
  end

  def legend(question, page_header, conditional)
    {
      text: [question.question_number_string(hidden: conditional || question.hide_question_number_on_page), question.header.html_safe].compact.join(" - "),
      size: label_size(page_header, conditional, question),
      tag: label_tag(page_header, conditional),
    }
  end

  def answer_option_synonyms(resource)
    return unless resource.instance_of?(Scheme) || resource.is_a?(Hash)

    if resource.instance_of?(Scheme)
      resource.locations.map(&:postcode).join(",")
    else
      resource["synonyms"]
    end
  end

  def answer_option_append(resource)
    return unless resource.instance_of?(Scheme)

    confirmed_locations_count = resource.locations.visible.confirmed.size
    unconfirmed_locations_count = resource.locations.visible.unconfirmed.size
    "#{confirmed_locations_count} completed #{'location'.pluralize(confirmed_locations_count)}, #{unconfirmed_locations_count} incomplete #{'location'.pluralize(unconfirmed_locations_count)}"
  end

  def answer_option_hint(resource)
    return unless resource.instance_of?(Scheme) || resource.instance_of?(Location)

    if resource.instance_of?(Scheme)
      "(S#{resource.id}) " + [resource.primary_client_group, resource.secondary_client_group].compact.join(", ")
    elsif resource.instance_of?(Location)
      resource.name
    end
  end

  def select_option_name(value)
    return value.service_name if value.respond_to?(:service_name)
    return value["name"] if value.is_a?(Hash) && value["name"].present?
    return value["postcode"] if value.is_a?(Location)
  end

private

  def label_size(page_header, conditional, question)
    return if question.plain_label.present?

    page_header.blank? && !conditional ? "l" : "m"
  end

  def label_tag(page_header, conditional)
    return "" if conditional

    page_header.blank? ? "h1" : "div"
  end
end