#!/usr/bin/env python3
from subprocess import check_output
import subprocess
import sys
import time

work_time = int(float(sys.argv[1]) * 60)
sleeptime = int(float(sys.argv[2]) * 60)

message = "Break in 15 seconds"


def take_a_break():
    current = check_output(['xbacklight', '-get'])
    current = current.decode('unicode_escape')
    subprocess.call(['xbacklight', '-set', '0'])
    time.sleep(sleeptime)
    subprocess.call(['xbacklight', '-set', current])


while True:
    time.sleep(work_time - 15)
    subprocess.Popen(["notify-send", message])
    time.sleep(15)
    take_a_break()