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

# History:
#   Stan Smith 2016-12-01 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 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 2013-11-04 original script.

require_relative 'class_gmlIdentifier'

module ADIWG
    module Mdtranslator
        module Writers
            module Iso19115_2

                class TimeInstant

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

                    def writeXML(hInstant)

                        # classes used
                        gmlClass =  GMLIdentifier.new(@xml, @hResponseObj)

                        # TimeInstant requires a unique ID
                        timeID = hInstant[:timeId]
                        if timeID.nil?
                            @hResponseObj[:writerMissingIdCount] = @hResponseObj[:writerMissingIdCount].succ
                            timeID = 'timeInstant' + @hResponseObj[:writerMissingIdCount]
                        else
                            timeID.gsub!(/[^0-9a-zA-Z]/,'')
                        end

                        @xml.tag!('gml:TimeInstant', {'gml:id' => timeID}) do

                            # time instant - description
                            s = hInstant[:description]
                            if !s.nil?
                                @xml.tag!('gml:description', s)
                            elsif @hResponseObj[:writerShowTags]
                                @xml.tag!('gml:description')
                            end

                            # time instant - identifier {gmlIdentifier}
                            hGMLid = hInstant[:identifier]
                            unless hGMLid.empty?
                                gmlClass.writeXML(hGMLid)
                            end
                            if hGMLid.empty? && @hResponseObj[:writerShowTags]
                                @xml.tag!('gml:identifier', {'codeSpace'=>''})
                            end

                            # time instant - names []
                            aNames = hInstant[:instantNames]
                            aNames.each do |name|
                                @xml.tag!('gml:name', name)
                            end
                            if aNames.empty? && @hResponseObj[:writerShowTags]
                                @xml.tag!('gml:name')
                            end

                            # time instant - time position
                            hDateTime = hInstant[:timeInstant]
                            timeInstant = hDateTime[:dateTime]
                            timeResolution = hDateTime[:dateResolution]
                            dateStr = AdiwgDateTimeFun.stringDateTimeFromDateTime(timeInstant, timeResolution)
                            @xml.tag!('gml:timePosition', dateStr)

                        end # TimeInstant tag
                    end # writeXML
                end # TimeInstant class

            end
        end
    end
end