export_survey_responses_service.rb

class ExportSurveyResponsesService
  def initialize(survey:)
    @survey = survey
  end

  def call
    Enumerator.new do |y|
      survey_annex_service(yielder: y).call
      survey_headers_service(yielder: y).call
      survey_responses_values_service(yielder: y).call
    end
  end

  private

  attr_reader :survey

  def survey_annex_service(yielder:)
    @survey_annex_service ||= SurveyAnnexService.new(survey: survey, yielder: yielder)
  end

  def survey_headers_service(yielder:)
    @survey_headers_service ||= SurveyHeadersService.new(survey: survey, yielder: yielder)
  end

  def survey_responses_values_service(yielder:)
    @survey_responses_values_service ||= SurveyResponsesValuesService.new(survey: survey, yielder: yielder)
  end
end