# ISO <<Class>> MD_Identifier
# 19115-2 output for ISO 19115-2 XML

# History:
#   Stan Smith 2016-11-29 refactored for mdTranslator/mdJson 2.0
#   Stan Smith 2015-07-14 refactored to eliminate namespace globals $WriterNS and $IsoNS
#   Stan Smith 2015-07-14 refactored to make iso19110 independent of iso19115_2 classes
#   Stan Smith 2015-06-22 replace global ($response) with passed in object (hResponseObj)
#   Stan Smith 2014-12-12 refactored to handle namespacing readers and writers
#   Stan Smith 2014-07-08 modify require statements to function in RubyGem structure
#   Stan Smith 2014-05-28 revised for json schema 0.5.0
# 	Stan Smith 2014-05-16 original script

require_relative 'class_citation'

module ADIWG
    module Mdtranslator
        module Writers
            module Iso19115_2

                class MD_Identifier

                    def initialize(xml, hResponseObj)
                        @xml = xml
                        @hResponseObj = hResponseObj
                    end

                    def writeXML(hIdentifier)

                        # classes used in MD_Metadata
                        citationClass = CI_Citation.new(@xml, @hResponseObj)

                        @xml.tag!('gmd:MD_Identifier') do

                            # identifier - authority
                            hCitation = hIdentifier[:citation]
                            unless hCitation.empty?
                                @xml.tag!('gmd:authority') do
                                    citationClass.writeXML(hCitation)
                                end
                            end
                            if hCitation.empty? && @hResponseObj[:writerShowTags]
                                @xml.tag!('gmd:authority')
                            end

                            # identifier - code (required)
                            s = hIdentifier[:identifier]
                            if s.nil?
                                @xml.tag!('gmd:code', {'gco:nilReason' => 'missing'})
                            else
                                @xml.tag!('gmd:code') do
                                    @xml.tag!('gco:CharacterString', s)
                                end
                            end

                        end # MD_Identifier tag
                    end # writeXML
                end # MD_Identifier class

            end
        end
    end
end