#!/usr/bin/python


import glob

from lib.powermate import powermate
from lib.python_pulse_control.pulsectl import pulsectl


INCREASE_AMOUNT = 0.01


class PowerMate(powermate.PowerMateBase):

    def __init__(self, path):
        self.pulse = pulsectl.Pulse()
        super().__init__(path)

    def rotate(self, rotation):
        #print(rotation);

        if (rotation > 0):
            self.change_vol(INCREASE_AMOUNT)
        else:
            self.change_vol(-INCREASE_AMOUNT)

    def change_vol(self, vol):
        for sink in self.pulse.sink_list():
            #print(sink)
            self.pulse.volume_change_all_chans(sink, vol)


if __name__ == '__main__':
    pm = PowerMate(glob.glob('/dev/input/by-id/*PowerMate*')[0])
    pm.run()