module GOVUKDesignSystemFormBuilder
  module Containers
    class Supplemental < Base
      def initialize(builder, object_name, attribute_name, content)
        super(builder, object_name, attribute_name)

        @content = content
      end

      def html
        return nil if @content.blank?

        content_tag('div', id: supplemental_id) do
          @content
        end
      end

      def supplemental_id
        build_id('supplemental')
      end
    end
  end
end