class OpeningTime

  attr_accessor :intervals

  def initialize
    @intervals = Array.new
  end

  def is_open?
    d = Date.new
    t = Time.new
    now = OpeningTime.time_in_week(d.cwday, t.hour, t.min)
    @intervals.each do |i|
      return true if i.include? now
    end
    false
  end

  def self.time_in_week(d,h,m)
    time = (d*24).hours + h.hours + m.minutes
    time % (7*24).hours
  end

end

class Interval

  def initialize(s,t)
    @since = s
    @till = t
  end

  def include?(t)
    ((t >= @since) && (t <= @till))
  end

end


# josef-hovads-computer:~/Work/PizzaRiviera pepe$ script/console
# Loading development environment (Rails 2.3.3)
# >> ot = OpeningTime.new
# => #<OpeningTime:0x3698b58 @intervals=[]>
# >> ot.is_open?
# => false
# >> ot.intervals << Interval.new(OpeningTime.time_in_week(1,12,30),OpeningTime.time_in_week(2,0,0))
# => [#<Interval:0x366e484 @till=172800, @since=131400>]
# >> ot.is_open?
# => true