volume

#!/usr/bin/env ruby

MIN = 0
MAX = 65536

SINK = `pactl stat |grep "Default Sink: "`.split(" ")[2]
STEP = MAX / 16

volume = `pacmd dump | grep "set-sink-volume #{SINK}"`.split(" ")[2].to_i(16)
muted =`pacmd dump | grep "set-sink-mute #{SINK}"`.split(" ")[2] == "yes"

def play_sound; `ogg123 /usr/share/sounds/ubuntu/stereo/bell.ogg` end
def mute; puts `pactl set-sink-mute #{SINK} 1` end
def unmute; puts `pactl set-sink-mute #{SINK} 0` end

if ARGV[0] == "up"
  unmute
  exit if volume == MAX
  volume = [volume + STEP, MAX].min
  `pactl set-sink-volume #{SINK} -- 0x#{volume.to_s(16)}`
  play_sound
elsif ARGV[0] == "down"
  unmute
  volume = [volume - STEP, MIN].max
  `pactl set-sink-volume #{SINK} -- 0x#{volume.to_s(16)}`
  play_sound
elsif ARGV[0] == "toggle"
  if muted
    unmute
  else
    mute
  end
end