UNIX Epoch Countdown Script

countdown.py

#!/usr/bin/env python3
"""
UNIX Epoch Countdown
Originally written for 1.7e9 epoch by Teque5
November, 2023
"""
import time

import numpy as np
import seaborn as sns
from matplotlib import cm, colors

end = 1.8e9
mod = 10
boldmod = 10
rgba255 = np.zeros(4)
CSI = "\033"
spins = "⠋⠙⠹⠸⠼⠴⠦⠧⠇⠏"
cmap = sns.husl_palette(as_cmap=True)
# https://stackoverflow.com/questions/3942878/how-to-decide-font-color-in-white-or-black-depending-on-background-color
# thresh = np.array([0.299, 0.587, 0.114, 0])


def wrap_color(a_string, rgba255=(255, 0, 0, 0), is_bold=False):
    # bgstart = CSI+'[40m' if (rgba255 * thresh).sum() < 186 else CSI+'[47m'
    boldstart = CSI + "[1m" if is_bold else ""
    boldstop = CSI + "[0m" if is_bold else ""
    reset = CSI + "[0m"
    return f"{boldstart}{CSI}[38;2;{rgba255[0]:.0f};{rgba255[1]:.0f};{rgba255[2]:.0f}m{a_string}{boldstop}{reset}"


while True:
    try:
        now = time.time()
        remaining = end - now
        rgba255[:] = cmap((remaining % mod) / mod)
        rgba255 *= 255
        is_bold = (remaining % boldmod) < 1
        spindx = int(remaining * 10 % mod)
        spin = "✯" if remaining < 0 else spins[spindx]
        print("Celebration " + wrap_color(f"{end:>14.3f} {spin}", rgba255, is_bold))
        print("Currently   " + wrap_color(f"{now:>14.3f}", rgba255, is_bold))
        print("Remaining   " + wrap_color(f"{remaining:>14.3f}", rgba255, is_bold))
        print(f"{CSI}[3A", end="")  # move up 3 lines
        # time.sleep(.01)
    except KeyboardInterrupt:
        print(f"{CSI}[39;49m{CSI}[0m\n\n\n")
        break

$ ./countdown.py