class AnswerFormatValidator < ActiveModel::EachValidator
  def validate_each(record, attribute, value)
    send(record.question.input_type, record, attribute, value)
  end

  private

    def text record, attribute, value
      return unless value.length.between? 1, 1000

      if value.blank?
        record.errors[attribute] << (options[:message] || "Please enter an answer.")
      end

      if value.length > 1000
        record.errors[attribute] << (options[:message] || "The character limit for a textarea answer is 1000")
      end
    end

    def radio record, attribute, value
      return unless value.nil?

      record.errors[attribute] << (options[:message] || "Please select an answer.")
    end

    def checkbox record, attribute, value
      return unless value.nil? || value.join.blank?

      record.errors[attribute] << (options[:message] || "Please select an answer.")
    end

    def live_code record, attribute, value
      return unless value.nil?

      msg = "You must write code in one of the above textareas to progress."
      record.errors[attribute] << (options[:message] || msg)
    end
end