Read IDC data and create user

app/models/registrant_user.rb

@@ -1,8 +1,22 @@
 class RegistrantUser < User
-  attr_accessor :registrar_typeahead
+  attr_accessor :idc_data
 
   def ability
     @ability ||= Ability.new(self)
   end
   delegate :can?, :cannot?, to: :ability
+
+  def to_s
+    registrant_ident
+  end
+
+  class << self
+    def find_or_create_by_idc_data(idc_data)
+      return false if idc_data.blank?
+      identity_code = idc_data.scan(/serialNumber=(\d+)/).flatten.first
+      country = idc_data.scan(/^\/C=(.{2})/).flatten.first
+
+      where(registrant_ident: "#{country}-#{identity_code}").first_or_create
+    end
+  end
 end