Present a popup/popups to remind me to leave...

leavein.py

#!/usr/bin/env python

"""Present a popup/popups to remind me to leave...

Usage:
    leavein <time>

Format:
    <time> should be given as e.g. 1h20m or 30m
"""

# Attributions:
#   The time string parser is taken from http://stackoverflow.com/a/3680376
#   (jathanism).

import sys, re, os
from time import sleep
from docopt import docopt
from pync import Notifier
from termcolor import cprint

__author__ = "Simon Mutch"
__date__   = "18 Jan 2013"

PATTERN = r'(?:(?P<hours>\d+)h)?(?:(?P<minutes>\d+)m)?'
PRE_WARN_TIME = 300 #s
    
minsec = re.compile(PATTERN)
def parse(s, pat=minsec):
    return pat.match(s).groupdict()


if __name__ == '__main__':

    args = docopt(__doc__, argv=sys.argv[1:], help=True, version="0.1") 
    time = parse(args["<time>"])
    for key in time.iterkeys():
        if time[key] is None:
            time[key] = 0
    seconds = int(time["hours"])*60*60 + int(time["minutes"])*60 

    cprint("Leave in %d hours, %d minutes (= %d sec)" % (int(time["hours"]),
                                                       int(time["minutes"]),
                                                       seconds), color='blue')

    if seconds>(PRE_WARN_TIME):
        seconds-=PRE_WARN_TIME
        sleep(seconds)
        Notifier.notify('Time to leave in 5 minutes!', title='WARNING',
                        group="leavein")

    sleep(seconds)
    Notifier.remove("leavein")
    Notifier.notify('Go go go...', execute='say "Time to leave now!"',
                    title='WARNING', group="leavein")
    cprint("...Time to leave!", color="red")