require 'pi_piper'
module Tamashii
  module Agent
    module Device
      class PIBuzzer
        SHORT_PLAY_TIME = 0.2
        LONG_PLAY_TIME = 0.5
        REPEAT_INTERVAL = 0.1
        LOW_FREQ = 0.7

        attr_reader :pwm

        def initialize
          @pwm = PiPiper::Pwm.new pin: 18 #, mode: :markspace
          @pwm.off
          @pwm.value = 1.0
        end

        def play(value = 1.0)
          @pwm.value = value
          @pwm.on
        end

        def stop
          @pwm.off
        end

        def play_short(value = 1.0)
          play_time(SHORT_PLAY_TIME,value)
        end

        def play_long(value = 1.0)
          play_time(LONG_PLAY_TIME,value)
        end

        def play_time(time, value = 1.0)
          play(value)
          sleep time
          stop
        end

        def play_repeat_short(repeat, repeat_interval = REPEAT_INTERVAL)
          repeat.times do
            play_short
            sleep repeat_interval
          end
        end

        def play_repeat_long(repeat, repeat_interval = REPEAT_INTERVAL)
          repeat.times do
            play_long
            sleep repeat_interval
          end
        end

        def play_ok
          play_repeat_short(1)
        end

        def play_no
          play_repeat_short(3)
        end

        def play_error
          play_repeat_long(3)
        end
      end
    end
  end
end