module Tables
  class Table < Array
    attr_writer :discomfort
    attr_reader :id

    def initialize(*args)
      super
      @id = SecureRandom.uuid
    end

    def discomfort
      @discomfort ||= DiscomfortCalculator.new(self).calculate
    end

    def swap_candidates
      @swap_candidates ||= uniq { |person| person.affinity_group_list.first }
    end

    def dup
      super.tap do |new_table|
        new_table.discomfort = nil
      end
    end
  end
end