#!/usr/bin/env python3
# devtimer.py - Temperature Controlled Photographic Darkroom Timer
# Targeted for RaspberryPi
# Copyright (c) 2018 TundraWare Inc.
# Permission Hereby Granted For Unrestricted Personal Or Commercial Use


from time import time, sleep
from tm1637 import *
from wiringpi import wiringPiSetupGpio

wiringPiSetupGpio()

BRIGHTNESS = 0x09
CLK = 21
DIO = 20



def show_elapsed(tm, elapsed):
    min = elapsed // 60
    sec = elapsed % 60
    d0 = tm.digit_to_segment[min // 10]
    d1 = tm.digit_to_segment[min % 10]
    d2 = tm.digit_to_segment[sec // 10]
    d3 = tm.digit_to_segment[sec % 10]
    tm.set_segments([d0, 0x80 + d1, d2, d3])



if __name__ == "__main__":

    tm = TM1637(CLK, DIO, BRIGHTNESS)

    start_time = int(time())
    show_elapsed(tm, 0)

    while True:

        sleep(.05)
        show_elapsed(tm, int(time())-start_time)
        if int(time())-start_time == 5999:
            start_time = int(time())