require 'digest'

module Jamnagar
  module Refiners
    class PrimaryKeyGeneration < Refiner
      def initialize(digester=nil)
        @digester = digester || Digest::MD5
      end

      def to_s
        "Primary Key Generation"
      end

      def refinement_result(item)
        id = @digester.hexdigest(item.to_s)
        {"_id" => id}
      end
    end
  end
end