Hotfix (#79)

* fixing update again

src/rpi-cpu2mqtt.py

@@ -339,7 +339,7 @@ def on_connect(client, userdata, flags, rc):
 
 
 def create_mqtt_client():
-    client = paho.Client(client_id="rpi-mqtt-monitor-" + hostname)
+    client = paho.Client(client_id="rpi-mqtt-monitor-" + hostname + str(int(time.time())))
     client.username_pw_set(config.mqtt_user, config.mqtt_password)
     client.on_log = on_log
     client.on_connect = on_connect
@@ -355,7 +355,7 @@ def publish_update_status_to_mqtt(git_update):
 
     client = create_mqtt_client()
     if client is None:
-        return
+        print("Error: Unable to connect to MQTT broker")
 
     client.loop_start()
     if config.git_update:
@@ -367,7 +367,13 @@ def publish_update_status_to_mqtt(git_update):
     if config.update:
         if config.discovery_messages:
             client.publish("homeassistant/update/" + hostname + "/config",
-                           config_json('update'), qos=config.qos)
+                           config_json('update'), qos=1)
+
+    # Wait for all messages to be delivered
+    while len(client._out_messages) > 0:
+        time.sleep(0.1)
+        client.loop()
+
     client.loop_stop()
     client.disconnect()        
 
@@ -446,6 +452,9 @@ def publish_to_mqtt(cpu_load=0, cpu_temp=0, used_space=0, voltage=0, sys_clock_s
         if config.discovery_messages:
             client.publish("homeassistant/button/" + config.mqtt_topic_prefix + "/" + hostname + "_restart/config",
                            config_json('restart_button'), qos=config.qos)
+    while len(client._out_messages) > 0:
+        time.sleep(0.1)
+        client.loop()
 
     client.loop_stop()
     # disconnect from mqtt server
@@ -467,7 +476,11 @@ def bulk_publish_to_mqtt(cpu_load=0, cpu_temp=0, used_space=0, voltage=0, sys_cl
 
     # publish monitored values to MQTT
     client.publish(config.mqtt_topic_prefix + "/" + hostname, values, qos=config.qos, retain=config.retain)
-
+    while len(client._out_messages) > 0:
+        time.sleep(0.1)
+        client.loop()
+
+    client.loop_stop()
     # disconnect from mqtt server
     client.disconnect()
 
@@ -601,29 +614,31 @@ def on_message(client, userdata, msg):
     args = parse_arguments();
 
     if args.service:
-        client = create_mqtt_client()
-        if client is None:
-            print("Error: Unable to connect to MQTT broker")
-            sys.exit(1)
-
-        client.loop_start()
+        client = paho.Client()
+        client.username_pw_set(config.mqtt_user, config.mqtt_password)
+        client.on_message = on_message
+
+        try:
+            client.connect(config.mqtt_host, int(config.mqtt_port))
+        except Exception as e:
+            print("Error connecting to MQTT broker:", e)
+            sys.exit(1)  # Exit the script
 
         client.subscribe("homeassistant/update/" + hostname + "/command")  # Replace with your MQTT topic
         print("Listening to topic : " + "homeassistant/update/" + hostname + "/command")
-
+        client.loop_start()  # Start the MQTT client loop in a new thread
         # Start the gather_and_send_info function in a new thread
         thread1 = threading.Thread(target=gather_and_send_info)
         thread1.daemon = True  # Set the daemon attribute to True
         thread1.start()
 
+
         if config.update:
             # Start the update_status function in a new thread
             thread2 = threading.Thread(target=update_status)
             thread2.daemon = True  # Set the daemon attribute to True
             thread2.start()
 
-        client.loop_start()  # Start the MQTT client loop in a new thread
-
         # Check the exit flag in the main thread
         while True:
             if exit_flag: