Add CLI flags for Steam avoidance and instant transitions

If called manually, ignore Steam by default. The systemd service checks for Steam as that is more likely to run at an annoying time.

scripts/sunset.py

@@ -1,9 +1,11 @@
 #!/bin/env python
 """Sets the monitor temperature based on the current time using Hyprsunset"""
+from argparse import ArgumentParser, Namespace
 from datetime import datetime
 from os import environ
 from pathlib import Path
 from socket import AF_UNIX, SOCK_STREAM, socket
+from typing import cast
 
 
 type Range = tuple[float, float]
@@ -63,9 +65,12 @@ def get_temperature(hyprsunset: socket) -> int:
 	return int(hyprsunset.recv(8))
 
 
-def set_temperature(hyprsunset: socket, temperature: float) -> None:
+def set_temperature(hyprsunset: socket, temperature: float, /, instant: bool = False) -> None:
 	# In theory the message might not send in one go, but in practice it does so I won't bother handling the error
 	_ = hyprsunset.send(f"temperature {temperature:.1f}".encode())
+	if instant:
+		# Setting the temperature twice in quick succession sometimes skips the transition period
+		set_temperature(hyprsunset, temperature, instant=False)
 
 
 def on_steam() -> bool:
@@ -76,17 +81,29 @@ def on_steam() -> bool:
 	return pid_dir.is_dir()
 
 
-def main(sunrise: Range, sunset: Range, temperature_range: Range) -> None:
+def main(sunrise: Range, sunset: Range, temperature_range: Range, /, check_steam: bool = False, instant: bool = False) -> None:
 	"""Adjusts the monitor temperature based on the current time"""
 	hyprsunset = setup_socket()
 	temperature = int(calculate_temperature(sunrise, sunset, temperature_range))
-	if temperature != get_temperature(hyprsunset) and not on_steam():
+	if temperature != get_temperature(hyprsunset):
-		set_temperature(hyprsunset, temperature)
+		if check_steam and on_steam():
+			return
+		set_temperature(hyprsunset, temperature, instant=instant)
 
 
+class Arguments(Namespace):
+	check_steam: bool = False
+	instant: bool = False
+
 if __name__ == "__main__":
+	parser = ArgumentParser(description="Adjusts the temperature of your screen based on the time of day")
+	_ = parser.add_argument("-s", "--check-steam", action="store_true", help="Don't adjust temperature if Steam is active")
+	_ = parser.add_argument("-i", "--instant", action="store_true", help="Try to instantly change temperature")
+	args = cast(Arguments, parser.parse_args())
 	main(
 		(day_elapsed(5), day_elapsed(7)),
 		(day_elapsed(21), day_elapsed(23)),
-		(2500.0, 6000.0)
+		(2500.0, 6000.0),
+		check_steam=args.check_steam,
+		instant=args.instant
 	)

systemd/sunset.service

@@ -3,4 +3,4 @@ Description=Sets the monitor temperature based on the time of day
 
 [Service]
 Type=oneshot
-ExecStart=/bin/env python -O /home/mbradley/scripts/sunset.py
+ExecStart=/bin/env python -O /home/mbradley/scripts/sunset.py --check-steam