# ISO <<Class>> EX_VerticalExtent
# writer output in XML

# History:
# 	Stan Smith 2013-11-15 original script
#   Stan Smith 2014-12-12 refactored to handle namespacing readers and writers

module ADIWG
    module Mdtranslator
        module Writers
            module Iso

                class EX_VerticalExtent

                    def initialize(xml)
                        @xml = xml
                    end

                    def writeXML(hVertEle)

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

                            # vertical extent - minimum value - required
                            s = hVertEle[:minValue]
                            if s.nil?
                                @xml.tag!('gmd:minimumValue', {'gco:nilReason' => 'missing'})
                            else
                                @xml.tag!('gmd:minimumValue') do
                                    @xml.tag!('gco:Real', s)
                                end
                            end

                            # vertical extent - maximum value - required
                            s = hVertEle[:maxValue]
                            if s.nil?
                                @xml.tag!('gmd:maximumValue', {'gco:nilReason' => 'missing'})
                            else
                                @xml.tag!('gmd:maximumValue') do
                                    @xml.tag!('gco:Real', s)
                                end
                            end

                            # vertical extent - vertical crs - attributes only - required
                            attributes = {}
                            s = hVertEle[:crsURI]
                            unless s.nil?
                                attributes['xlink:href'] = s
                            end
                            s = hVertEle[:crsTitle]
                            unless s.nil?
                                attributes['xlink:title'] = s
                            end

                            if attributes.empty?
                                attributes['gco:nilReason'] = 'missing'
                            end

                            @xml.tag!('gmd:verticalCRS', attributes)


                        end

                    end

                end

            end
        end
    end
end