#!/bin/env python3

import fileinput, json
from datetime import datetime, timezone, timedelta

ICO="󰔚"
CLS="timew"
ALT="timew"

def main() -> None:
	# only read actual json
	input = []
	for line in fileinput.input(encoding='utf-8'):
		if len(input) != 0:
			input.append(line)

		if line == "[\n":
			input = [line]

		pass
	
	# parse json
	input = json.loads("".join(input))

	# filter for active trackers
	input = list(filter(lambda x: not "end" in x, list(input)))

	# exit early if no tracker is running
	if len(input) == 0:
		output = {}
	else:
		# pick first
		input = input[0]
		# parse start
		startt = datetime.fromisoformat(input['start'])
		# get now
		nowt = datetime.now(timezone.utc);
		# round away microseconds
		nowt = nowt.replace(microsecond=0)
		# calc diff
		diff = nowt - startt.astimezone(timezone.utc)
		# make output
		output = {
			'text': f"{ICO} {diff} {",".join(input['tags'])}",
			'class': CLS,
			'alt': ALT,
		}

	print(json.dumps(output), end='')

if __name__ == "__main__":
	main()