class Card
  class Name
    module All
      # Name-related Card class methods
      module ClassMethods
        def rename! oldname, newname
          Card[oldname].update! name: newname, update_referers: true
        end

        def uniquify_name name, rename=:new
          return name unless Card.exists? name
          uniq_name = generate_alternative_name name
          return uniq_name unless rename == :old
          rename!(name, uniq_name)
          name
        end

        private

        def generate_alternative_name name
          uniq_name = "#{name} 1"
          uniq_name.next! while Card.exists?(uniq_name)
          uniq_name
        end
      end
    end
  end
end