refactor: move GPIO and pygame initialization into setup()

wecker.py

@@ -59,22 +59,24 @@ def remove_pid_file():
         pass
 
 
-# GPIO Setup
 BUTTON_PIN = 17
 LED_PIN = 27
 
-GPIO.setmode(GPIO.BCM)
-GPIO.setup(LED_PIN, GPIO.OUT)
-GPIO.setup(BUTTON_PIN, GPIO.IN, pull_up_down=GPIO.PUD_UP)
 
-# Audio Setup (with optimized buffer)
-pygame.mixer.pre_init(frequency=44100, size=-16, channels=2, buffer=4096)
-pygame.mixer.init()
+def setup():
+    """Initialize GPIO and audio hardware. Call once before running."""
+    GPIO.setmode(GPIO.BCM)
+    GPIO.setup(LED_PIN, GPIO.OUT)
+    GPIO.setup(BUTTON_PIN, GPIO.IN, pull_up_down=GPIO.PUD_UP)
 
-try:
+    # Audio Setup (with optimized buffer)
+    pygame.mixer.pre_init(frequency=44100, size=-16, channels=2, buffer=4096)
+    pygame.mixer.init()
+
+    try:
         pygame.mixer.music.load("Laid Back - Sunshine Reggae.mp3")
         pygame.mixer.music.set_volume(1.0)
-except Exception as e:
+    except Exception as e:
         logging.error(f"Error loading audio file: {e}")
         # Don't exit in test mode
         if "pytest" not in sys.modules:
@@ -199,6 +201,7 @@ class AlarmClock:
 
 
 def run_alarm(test_mode=False):
+    setup()
     logging.info("Alarm clock started. Music is playing in an endless loop.")
     if "pygame" in globals() and hasattr(pygame, "mixer") and pygame.mixer.get_init():
         pygame.mixer.music.play(-1)