#!/bin/env python3

# Egg timer
# 2020-02-08
# OM

from tkinter import *
from tkinter import messagebox
from tkinter import Canvas
import argparse
import time

root = Tk()

def message(m, s):
    screen_width = root.winfo_screenwidth()
    screen_height = root.winfo_screenheight()

    if screen_width <= 0:
        screen_width = 1024
    if screen_height <= 0:
        screen_height = 768

    c = Canvas(root, bg = "darkred", \
            width = screen_width, height = screen_height)
    c.pack()
    messagebox.showwarning('ALARM', 'Timer ran ' + str(m) + ' m and ' \
            + str(s) + ' s')
    #root.mainloop()

def main():
    argparser = argparse.ArgumentParser()
    argparser.add_argument(
        '-s',
        help='seconds',
        type=int,
        nargs=1
    )
    argparser.add_argument(
        '-m',
        help='minutes',
        type=int,
        nargs=1
    )

    args = argparser.parse_args()
    if not args.s and not args.m:
        argparser.print_help()

    time_s = 0
    time_m = 0
    if args.s:
        time_s = abs(args.s[0])
    if args.m:
        time_m = abs(args.m[0])

    if args.s or args.m:
        sleep(m=time_m, s=time_s)
        message(m=time_m, s=time_s)

def sleep(m, s):
    print('Start: ' + time.ctime())
    print('Sleeping for: ' + str(m) \
            + ' mins and ' + str(s) + ' seconds')

    sleep_time_s = s + (m*60)
    for s in range(sleep_time_s):
        pr_m, pr_s = divmod(s, 60)
        print('  {:02d}:{:02d}'.format(pr_m, pr_s), end='\r')
        time.sleep(1)
    
if __name__ == '__main__':
    main()