class Shutter3

# File lib/shutter3.rb, line 16
def initialize(bdid='', debug: false)
  @bdid = bdid
  @debug = debug
end

# File lib/shutter3.rb, line 21
def start()

  button = nil
  found = 0

  IO.popen('sudo hcidump --raw -i '+ @bdid).each_line do |x| 

    case x
    when /#{@bdid.split(':').reverse.join(' ')}/

      found += 1

      if found > 2 then
        on_connect()
        found = 0
        next
      end
    when /> 04 05 04 00 40 00 08 \n/
      on_disconnect()
      next
    end

    case x[/> 02 40 20 09 00 05 00 04 00 1B (\w+ \w+ \w+ \w+)(?= \n$)/,1]
    when "17 00 00 28"
      on_android_keydown()
      on_android_keypress()
      button = :android
    when "17 00 00 00"
      on_android_keyup()
      button = nil
    when "13 00 01 00"
      next if button == :android
      on_ios_keydown()
      on_ios_keypress()
    when "13 00 00 00"
      next if button == :android
      on_ios_keyup()
    when ""
    end
    puts x.inspect if @debug
  end

end

# File lib/shutter3.rb, line 71
def on_android_keydown()
end

# File lib/shutter3.rb, line 67
def on_android_keypress()
  puts 'android button pressed'
end

# File lib/shutter3.rb, line 74
def on_android_keyup()
end

# File lib/shutter3.rb, line 77
def on_connect()
  puts 'connected to ' + @bdid
end

# File lib/shutter3.rb, line 81
def on_disconnect()
  puts @bdid + ' disconnected'
end

# File lib/shutter3.rb, line 89
def on_ios_keydown()
end

# File lib/shutter3.rb, line 85
def on_ios_keypress()
  puts 'iOS button pressed'
end

# File lib/shutter3.rb, line 92
def on_ios_keyup()
end