# ISO <<Class>> MD_MetadataExtensionInformation
# 19115-2 writer output in XML

# History:
# 	Stan Smith 2013-11-22 original script.
#   Stan Smith 2014-07-08 modify require statements to function in RubyGem structure
#   Stan Smith 2014-12-12 refactored to handle namespacing readers and writers
#   Stan Smith 2015-06-11 change all codelists to use 'class_codelist' method
#   Stan Smith 2015-06-22 replace global ($response) with passed in object (hResponseObj)
#   Stan Smith 2015-07-14 refactored to make iso19110 independent of iso19115_2 classes
#   Stan Smith 2015-07-14 refactored to eliminate namespace globals $WriterNS and $IsoNS

require_relative 'class_codelist'
require_relative 'class_enumerationList'
require_relative 'class_onlineResource'
require_relative 'class_responsibleParty'

module ADIWG
    module Mdtranslator
        module Writers
            module Iso19115_2

                class MD_MetadataExtensionInformation

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

                    def writeXML(hExtension)

                        # classes used
                        codelistClass = MD_Codelist.new(@xml, @hResponseObj)
                        enumerationClass = MD_EnumerationList.new(@xml, @hResponseObj)
                        olResClass = CI_OnlineResource.new(@xml, @hResponseObj)
                        partyClass = CI_ResponsibleParty.new(@xml, @hResponseObj)

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

                            # metadata extension - online resource {CI_OnLineResource}
                            hOLResource = hExtension[:onLineResource]
                            unless hOLResource.empty?
                                @xml.tag!('gmd:extensionOnLineResource') do
                                    olResClass.writeXML(hOLResource)
                                end
                            end
                            if hOLResource.empty? && @hResponseObj[:writerShowTags]
                                @xml.tag!('gmd:extensionOnLineResource')
                            end

                            # metadata extension = extended element information
                            @xml.tag!('gmd:extendedElementInformation') do
                                @xml.tag!('gmd:MD_ExtendedElementInformation') do

                                    # extended element info - name (required)
                                    s = hExtension[:name]
                                    unless s.nil?
                                        @xml.tag!('gmd:name') do
                                            @xml.tag!('gco:CharacterString', s)
                                        end
                                    end
                                    if s.nil?
                                        @xml.tag!('gmd:name', {'gco:nilReason' => 'missing'})
                                    end

                                    # extended element info - short name
                                    s = hExtension[:shortName]
                                    unless s.nil?
                                        @xml.tag!('gmd:shortName') do
                                            @xml.tag!('gco:CharacterString', s)
                                        end
                                    end
                                    if s.nil? && @hResponseObj[:writerShowTags]
                                        @xml.tag!('gmd:shortName')
                                    end

                                    # extended element info - definition (required)
                                    s = hExtension[:definition]
                                    unless s.nil?
                                        @xml.tag!('gmd:definition') do
                                            @xml.tag!('gco:CharacterString', s)
                                        end
                                    end
                                    if s.nil?
                                        @xml.tag!('gmd:definition', {'gco:nilReason' => 'missing'})
                                    end

                                    # extended element info - obligation
                                    s = hExtension[:obligation]
                                    unless s.nil?
                                        @xml.tag!('gmd:obligation') do
                                            enumerationClass.writeXML('iso_obligation',s)
                                        end
                                    end
                                    if s.nil? && @hResponseObj[:writerShowTags]
                                        @xml.tag!('gmd:obligation')
                                    end

                                    # extended element info - data type (required)
                                    s = hExtension[:dataType]
                                    unless s.nil?
                                        @xml.tag!('gmd:dataType') do
                                            codelistClass.writeXML('gmd', 'iso_entityClass',s)
                                        end
                                    end
                                    if s.nil?
                                        @xml.tag!('gmd:dataType', {'gco:nilReason' => 'missing'})
                                    end

                                    # extended element info - maximum occurrence
                                    s = hExtension[:maxOccurrence]
                                    unless s.nil?
                                        @xml.tag!('gmd:maximumOccurrence') do
                                            @xml.tag!('gco:CharacterString', s)
                                        end
                                    end
                                    if s.nil? && @hResponseObj[:writerShowTags]
                                        @xml.tag!('gmd:maximumOccurrence')
                                    end

                                    # extended element info - parent entity [] (required)
                                    aParents = hExtension[:parentEntities]
                                    aParents.each do |parent|
                                        @xml.tag!('gmd:parentEntity') do
                                            @xml.tag!('gco:CharacterString', parent)
                                        end
                                    end
                                    if aParents.empty?
                                        @xml.tag!('gmd:parentEntity', {'gco:nilReason' => 'missing'})
                                    end

                                    # extended element info - rule
                                    s = hExtension[:rule]
                                    unless s.nil?
                                        @xml.tag!('gmd:rule') do
                                            @xml.tag!('gco:CharacterString', s)
                                        end
                                    end
                                    if s.nil?
                                        @xml.tag!('gmd:rule', {'gco:nilReason' => 'missing'})
                                    end

                                    # extended element info - rationale []
                                    aRations = hExtension[:rationales]
                                    aRations.each do |ration|
                                        @xml.tag!('gmd:rationale') do
                                            @xml.tag!('gco:CharacterString', ration)
                                        end
                                    end
                                    if aRations.empty? && @hResponseObj[:writerShowTags]
                                        @xml.tag!('gmd:rationale')
                                    end

                                    # extended element info - source [] (required)
                                    # only allowing 1 for now
                                    role = hExtension[:sourceRole]
                                    unless role.nil?
                                        @xml.tag!('gmd:source') do
                                            @xml.tag!('gmd:CI_ResponsibleParty') do
                                                orgName = hExtension[:sourceOrganization]
                                                unless orgName.nil?
                                                    @xml.tag!('gmd:organisationName') do
                                                        @xml.tag!('gco:CharacterString', orgName)
                                                    end
                                                end
                                                uri = hExtension[:sourceURI]
                                                unless uri.nil?
                                                    @xml.tag!('gmd:contactInfo') do
                                                        @xml.tag!('gmd:CI_Contact') do
                                                            @xml.tag!('gmd:onlineResource') do
                                                                @xml.tag!('gmd:CI_OnlineResource') do
                                                                    @xml.tag!('gmd:linkage') do
                                                                        @xml.tag!('gmd:URL', uri)
                                                                    end
                                                                end
                                                            end
                                                        end
                                                    end
                                                end
                                                @xml.tag!('gmd:role') do
                                                    codelistClass.writeXML('gmd', 'iso_role', role)
                                                end
                                            end
                                        end
                                    end
                                    if role.nil?
                                        xml.tag!('gmd:source', {'gco:nilReason' => 'missing'})
                                    end

                                end # gmd:MD_ExtendedElementInformation tag
                            end # gmd:extendedElementInformation
                        end # gmd:MD_MetadataExtensionInformation
                    end # writeXML
                end # MD_MetadataExtensionInformation class

            end
        end
    end
end