print("Detecting rank changes...")

	hr = "=" * shutil.get_terminal_size().columns

	found_anything = False

	print(hr)

	for (pin, recs) in player_records:

		tourneys = list(recs)

		tracker = RankTracker(tourneys[0].rating_before)

		steps = []

		for r in tourneys:

			# omit reset ratings

			if tracker.rounded_rating != round_rating(r.rating_before):

				tracker = RankTracker(r.rating_before)

			old_rank = tracker.rank

			new_rank = tracker.update(r.rating_after)

			if new_rank is not False:

				r.rank_change = (old_rank, new_rank)

				steps.append(r)

		steps = [r for r in steps if since <= r.date <= to]

		if steps:

			print("\n".join(map(str, steps)))

			found_anything = True

	if not found_anything:

		print("Nothing found.")

	print(hr)

if __name__ == "__main__":

	copyright_notice = str(zlib.decompress(b64decode(b'eJw1zk0OgjAUBOCrzAUsIa5wZdiwMYYYiOvSPoEALXl9+HcbzmK8lzXGzazmy8yZexFyaB6otKXX+l6REw+TdtDOYuwNuUAWi7PEKI41ivKA6xae4ehGrFB1hOAXNgTjbYxoG8LFRwMt6ETmsEsSptmrNLunmTLP5KTdsCnZt0whQCFf2vCn3yZLXBUPUc3vz54m3Y+RfgDMjz+e')), encoding="utf-8")

	parser = argparse.ArgumentParser(epilog=copyright_notice)

	parser.add_argument("since", help="a date in YYYYMMDD format")

	parser.add_argument("to", nargs="?", help="a date in YYYYMMDD format")

	parser.add_argument("-c", "--country-code", default="CZ", help="a two letter country code, default=CZ")

	parser.add_argument("-f", "--file", help="a path to the rating history file")

	args = parser.parse_args()

	since = datetime.strptime(args.since, "%Y%m%d")

	to = datetime.strptime(args.to, "%Y%m%d") if args.to else datetime.now()

	if args.file:

		print("Reading {} ...".format(args.file))

		with ZipFile(args.file) as f:

	else:

		url = "https://europeangodatabase.eu/EGD/EGD_2_0/downloads/hisgor.zip"

		print("Downloading data from {} ...".format(url))

		try:

			with urllib.request.urlopen(url) as f:

				compressed_data = f.read()

				with ZipFile(io.BytesIO(compressed_data)) as g:

		except URLError as e:

			print(

				"* Failed to connect to the server. "

				"You can try again later or download {} and run the program with the -f parameter.\n"

				"The error message:\n{}".format(url, e)

			)

			sys.exit(1)

	print("Processing...")

	main(s, since, to, args)

	print("Done.")