update for single button

buttons.py

@@ -1,6 +1,6 @@
 import RPi.GPIO as GPIO
 import time
-from lib.mqtt import create_client, control_player, create_config
+from lib.mqtt import create_client, control_player, create_config, check_current_status
 
 client = create_client()
 
@@ -17,15 +17,23 @@ for pin in BUTTON_PINS:
 
 # Callback functions to handle button presses
 def button_callback_1(channel):
-    print("Button 1 pressed!")
-    control_player(client, "PLAY")
+    if check_current_status() == "PLAY":
+        print("Button 1 pressed! Pausing playback.")
+        client = create_client()
+        control_player(client, "PAUSE")
+    else:
+        print("Button 1 pressed! Playing.")
+        client = create_client()
+        control_player(client, "PLAY")
 
 def button_callback_2(channel):
     print("Button 2 pressed!")
+    client = create_client()
     control_player(client, "PAUSE")
 
 def button_callback_3(channel):
     print("Button 3 pressed!")
+    client = create_client()
 
 # Add event detection for each button press
 GPIO.add_event_detect(BUTTON_PINS[0], GPIO.FALLING, callback=button_callback_1, bouncetime=200)

lib/mqtt.py

@@ -192,6 +192,42 @@ def check_current_disc(client: mqtt.Client) -> dict:
     }
 
 
+def check_current_status(client: mqtt.Client) -> str:
+    """Check the current player status by subscribing to the retained message on the state topic.
+
+    Args:
+        client (mqtt.Client): MQTT Client
+
+    Returns:
+        str: Current object at current_disc/state
+    """    
+    def on_message(client, userdata, message):
+        """Callback function to handle received MQTT messages."""
+        userdata['message'] = message.payload.decode()
+    
+    # Create a dictionary to store the message
+    userdata = {'message': None}
+
+    # Set the user data and the on_message callback
+    client.user_data_set(userdata)
+    client.on_message = on_message
+
+    # Subscribe to the topic
+    client.subscribe("homeassistant/sensor/floppy_player/status/state")
+
+    # Run the loop manually until we receive a message
+    timeout = 5  # Timeout after 5 seconds
+    while userdata['message'] is None and timeout > 0:
+        client.loop(timeout=0.1)  # Process network events for a short time
+        timeout -= 0.1
+
+    # Check if we received the message
+    if userdata['message'] is None:
+        raise TimeoutError("No retained message was found.")
+
+    return userdata['message']
+
+
 def update_disc(client: mqtt.Client, disc_message: dict) -> None:
     """Update current disc.