scotdalton/exlibris-primo

module Exlibris
  module Primo
    # 
    # Primo facet holds the name of the facet
    # and size (often approximate).
    # 
    class Facet
      include Config::Attributes
      include WriteAttributes
      include XmlUtil

      attr_accessor :accurate
      alias accurate? accurate

      def initialize *args
        @raw_xml = args.last.delete(:raw_xml)
        super
      end

      def name
        @name = xml.root["NAME"]
      end

      def display_name
        @display_name ||= (config.facet_labels[name] || name)
      end

      def size
        @size = Integer(xml.root["COUNT"])
      end
      alias :count :size

      def facet_values
        @facet_values ||= xml.root.search("//FACET_VALUES").collect do |facet_value|
          FacetValue.new(:raw_xml => facet_value.to_xml, :facet => self)
        end
      end
    end
  end
end