sul-dlss/cocina-models

# frozen_string_literal: true

module Cocina
  module Models
    module Mapping
      module FromMods
        # Builds cocina identifier
        class IdentifierBuilder
          # @param [Nokogiri::XML::Element] identifier_element identifier element
          # @return [Hash] a hash that can be mapped to a cocina model
          def self.build_from_identifier(identifier_element:)
            new(identifier_element: identifier_element, type: identifier_element[:type]).build
          end

          # @param [Nokogiri::XML::Element] identifier_element recordIdentifier element
          # @return [Hash] a hash that can be mapped to a cocina model
          def self.build_from_record_identifier(identifier_element:)
            new(identifier_element: identifier_element, type: identifier_element[:source]).build
          end

          # @param [Nokogiri::XML::Element] identifier_element nameIdentifier element
          # @return [Hash] a hash that can be mapped to a cocina model
          def self.build_from_name_identifier(identifier_element:)
            new(identifier_element: identifier_element, type: identifier_element[:type]).build
          end

          def initialize(identifier_element:, type:)
            @identifier_element = identifier_element
            @with_note = with_note
            @cocina_type, @mods_type, = types_for(type)
          end

          def build
            return if identifier_element.text.blank? && identifier_element.attributes.empty?

            {
              displayLabel: identifier_element['displayLabel']
            }.tap do |attrs|
              if cocina_type == 'uri'
                attrs[:uri] = identifier_element.text
              else
                attrs[:type] = cocina_type
                attrs[:value] = identifier_element.text
                attrs[:source] = build_source
              end
              attrs[:status] = 'invalid' if identifier_element['invalid'] == 'yes'
            end.compact
          end

          private

          attr_reader :identifier_element, :with_note, :cocina_type, :mods_type

          def types_for(type)
            return ['uri', 'uri', IdentifierType::STANDARD_IDENTIFIER_SCHEMES] if type == 'uri'

            IdentifierType.cocina_type_for_mods_type(type)
          end

          def build_source
            {
              uri: identifier_element['typeURI']
            }.tap do |props|
              props[:code] = mods_type unless props[:uri]
            end.compact.presence
          end
        end
      end
    end
  end
end