Start playing a song randomly between two times

christmas_music_timer.py

"""
A short script to start a song at a random time on Christmas morning.

Usage
-----

You will need a way to keep your computer from falling asleep. I 
used the Caffiene program which I believe is crossplatform. If your
computer does fall asleep, run out of batteries, get stolen by 
Santa, etc; the music will not play in the morning.

The values you will want to configure are in the 
`if __name__ == '__main__':` section at the end of the code. You will
need to set the minimum time and maximum time the song can play and 
the file path to the song file.

You should probably test the setup by running the script with the 
start and end times set to next two minutes or something. 

When you are ready, run `python christmas_music_timer.py` in your terminal
and wait for the music!
"""
import os
import sys
import subprocess
import time
import datetime
import random


# From https://stackoverflow.com/a/17317468/9849440
def open_file(filename):
    if sys.platform == "win32":
        os.startfile(filename)
    else:
        opener = "open" if sys.platform == "darwin" else "xdg-open"
        subprocess.call([opener, filename])


def start_between(file_path, start_time, end_time):
    now = datetime.datetime.now()

    random_seconds = random.random() * (end_time - start_time).seconds

    sleep_seconds = (start_time - now).seconds + random_seconds
    print(f'sleep_seconds: {sleep_seconds}')
    time.sleep(sleep_seconds)

    open_file(file_path)


if __name__ == '__main__':
    music_file = '/home/jeremiah/Music/Sleigh Ride - Boston Pops Orchestra - Arthur Fiedler-restored.flac'

    start_time = datetime.datetime(year=2020, month=12, day=25, hour=7, minute=0)
    end_time = datetime.datetime(year=2020, month=12, day=25, hour=7, minute=30)

    start_between(music_file, start_time, end_time)