sul-dlss/dor-services-app

# frozen_string_literal: true

module Cocina
  module ToDatacite
    # Transform the Cocina::Models::Description note attributes to the DataCite descriptions attributes
    #  see https://support.datacite.org/reference/dois-2#put_dois-id
    class Note
      # @param [Cocina::Models::Description] cocina_desc
      # @return [NilClass, Array<Hash>] list of DataCite descriptions attributes, conforming to the expectations of HTTP PUT request to DataCite
      def self.descriptions_attributes(cocina_desc)
        new(cocina_desc).descriptions_attributes
      end

      def initialize(cocina_desc)
        @cocina_desc = cocina_desc
      end

      # @return [NilClass, Array<Hash>] list of DataCite descriptions attributes, conforming to the expectations of HTTP PUT request to DataCite
      def descriptions_attributes
        return unless abstract

        [{
          description: abstract,
          descriptionType: 'Abstract'
        }]
      end

      private

      attr_reader :cocina_desc

      def abstract
        @abstract ||= Array(cocina_desc.note).find { |cocina_note| cocina_note.type == 'abstract' }&.value
      end
    end
  end
end