# ISO <<Class>> attribute group
# 19115-1 writer output in XML

# History:
#  Stan Smith 2019-04-05 original script.

require_relative '../iso19115_1_writer'
require_relative 'class_codelist'
require_relative 'class_attribute'

module ADIWG
   module Mdtranslator
      module Writers
         module Iso19115_1

            class MD_AttributeGroup

               def initialize(xml, hResponseObj)
                  @xml = xml
                  @hResponseObj = hResponseObj
                  @NameSpace = ADIWG::Mdtranslator::Writers::Iso19115_1
               end

               def writeXML(hGroup, inContext = nil)

                  # classes used
                  codelistClass = MD_Codelist.new(@xml, @hResponseObj)
                  attributeClass = Attribute.new(@xml, @hResponseObj)

                  outContext = 'attribute group'
                  outContext = inContext + ' attribute group' unless inContext.nil?

                  unless hGroup.empty?
                     @xml.tag!('mrc:MD_AttributeGroup') do

                        # attribute group - content type [] {MD_CoverageContentTypeCode} (required)
                        aContentTypes = hGroup[:attributeContentTypes]
                        aContentTypes.each do |item|
                           @xml.tag!('mrc:contentType') do
                              codelistClass.writeXML('mrc', 'iso_coverageContentType', item)
                           end
                        end
                        if aContentTypes.empty?
                           @NameSpace.issueWarning(41, 'mrc:contentType', outContext)
                        end

                        # attribute group - attribute [] (abstract)
                        aAttributes = hGroup[:attributes]
                        aAttributes.each do |hAttribute|
                           unless hAttribute.empty?
                              @xml.tag!('mrc:attribute') do
                                 attributeClass.writeXML(hAttribute, outContext)
                              end
                           end
                        end
                        if aAttributes.empty? && @hResponseObj[:writerShowTags]
                           @xml.tag!('mrc:attribute')
                        end

                     end
                  end

               end # writeXML
            end # AttributeGroup class

         end
      end
   end
end