# ISO <<Class>> FC_FeatureAttribute
# writer output in XML
# create create attributes for entities

# History:
# 	Stan Smith 2014-12-02 original script

require 'class_multiplicity'
require 'class_listedValue'
require 'class_unitsOfMeasure'

class FC_FeatureAttribute

	def initialize(xml)
		@xml = xml
	end

	def writeXML(hAttribute)

		# classes used in FC_FeatureAttribute
		multiClass = Multiplicity.new(@xml)
		listClass = FC_ListedValue.new(@xml)
		uomClass = UnitsOfMeasure.new(@xml)

		@xml.tag!('gfc:FC_FeatureAttribute') do

			# feature attribute - member name - required
			# used to define attribute common name
			s = hAttribute[:attributeName]
			if !s.nil?
				@xml.tag!('gfc:memberName') do
					@xml.tag!('gco:LocalName', s)
				end
			else
				@xml.tag!('gfc:memberName', {'gco:nilReason' => 'missing'})
			end

			# feature attribute - definition
			s = hAttribute[:attributeDefinition]
			if !s.nil?
				@xml.tag!('gfc:definition') do
					@xml.tag!('gco:CharacterString', s)
				end
			elsif $showAllTags
				@xml.tag!('gfc:definition')
			end

			# feature attribute - cardinality - required
			b = hAttribute[:allowNull]
			if !b.nil?
				@xml.tag!('gfc:cardinality') do
					multiClass.writeXML(b)
				end
			else
				@xml.tag!('gfc:cardinality', {'gco:nilReason' => 'missing'})
			end

			# feature attribute - code
			s = hAttribute[:attributeCode]
			if !s.nil?
				@xml.tag!('gfc:code') do
					@xml.tag!('gco:CharacterString', s)
				end
			elsif $showAllTags
				@xml.tag!('gfc:code')
			end

			# feature attribute - value measurement unit (units of measure)
			s = hAttribute[:unitOfMeasure]
			if !s.nil?
				@xml.tag!('gfc:valueMeasurementUnit') do
					uomClass.writeUnits(s)
				end
			end

			# feature attribute - value type (datatype)
			s = hAttribute[:dataType]
			if !s.nil?
				@xml.tag!('gfc:valueType') do
					@xml.tag!('gco:TypeName') do
						@xml.tag!('gco:aName') do
							@xml.tag!('gco:CharacterString', s)
						end
					end
				end
			elsif $showAllTags
				@xml.tag!('gfc:valueType')
			end

			# feature attribute - listed value (domain)
			domainID = hAttribute[:domainId]
			if !domainID.nil?
				# find domain in domain array
				hDomain = listClass.getDomain(domainID)
				unless hDomain.empty?

					# only the domain items are represented in iso
					aItems = hDomain[:domainItems]
					aItems.each do |hItem|
						@xml.tag!('gfc:listedValue') do
							listClass.writeXML(hItem)
						end
					end

				end
			elsif $showAllTags
				@xml.tag!('gfc:listedValue')
			end


		end
	end

end