fix: Bugs & UI

core/csv_logger.py

@@ -149,6 +149,7 @@ class CsvLogger(QObject):
                 print(f"❌ An unexpected error occurred in the logger thread: {e}")
                 continue
 
+    @pyqtSlot()
     def stop_logging(self):
         self.timer.stop()
         self._process_queue()

core/mqtt_client.py

@@ -17,7 +17,8 @@
 #         super().__init__()
 #         self.broker = broker
 #         self.port = port
-        
+#         self._is_connected = False
+
 #         self.client = mqtt.Client(mqtt.CallbackAPIVersion.VERSION2, client_id)
 #         if user and password:
 #             self.client.username_pw_set(user, password)
@@ -29,22 +30,35 @@
 
 #     def on_connect(self, client, userdata, flags, rc, properties):
 #         if rc == 0:
+#             self._is_connected = True # Set flag on success
 #             print("Connection to MQTT Broker successful!")
 #             self.connection_status_changed.emit(True, "✅ Connected")
 #             self.connected.emit()
-#             # The app is connected, so we should NOT emit disconnected signals here.
 #         else:
-#             print(f"Failed to connect, return code {rc}\n")
-#             self.connection_status_changed.emit(False, f"❌ Connection failed (Code: {rc})")
-#             self.disconnected.emit() # Connection failed, so we are disconnected
+#             # This block now handles the failure message, but not the disconnect signal
+#             error_message = f"Connection failed (Code: {rc})"
+#             if rc == 5:
+#                 error_message = "❌ Not Authorized: Check username and password."
+            
+#             print(f"Failed to connect: {error_message}")
+#             self.connection_status_changed.emit(False, error_message)
+#             # The on_disconnect callback will handle the disconnected signal
 
 #     def on_disconnect(self, client, userdata, flags, rc, properties):
-#         print("Disconnected from MQTT Broker.")
-#         # Correctly emit signals for a disconnection
-#         # Change the icon in the line below from 🔌 to 🔴 ❌ 🚫 💔
-#         self.connection_status_changed.emit(False, "💔 Disconnected")
-#         self.disconnected.emit()
-#         self.stop_logging_signal.emit() # It's appropriate to stop logging here
+#         # --- MODIFIED: This entire block is now protected by the flag ---
+#         if not self._is_connected and rc != 0:
+#             # This is a connection failure, on_connect already handled the message
+#             pass
+#         else:
+#             # This is a true disconnection from an active session
+#             print("Disconnected from MQTT Broker.")
+#             self.connection_status_changed.emit(False, "💔 Disconnected")
+
+#         # This logic now runs only ONCE per disconnect/failure event
+#         if self._is_connected or rc != 0:
+#             self.disconnected.emit()
+        
+#         self._is_connected = False
             
 #     def on_message(self, client, userdata, msg):
 #         # print(f"Received {len(msg.payload)} bytes of binary data from topic `{msg.topic}`")
@@ -134,7 +148,6 @@
 #         print("Stopping MQTT network loop.")
 #         self.client.loop_stop()
 
-
 # In core/mqtt_client.py
 import socket
 from PyQt6.QtCore import QObject, pyqtSignal, pyqtSlot
@@ -146,7 +159,6 @@ class MqttClient(QObject):
     # Generic signals for success or failure/disconnection
     connected = pyqtSignal()
     disconnected = pyqtSignal()
-    stop_logging_signal = pyqtSignal()
     # Sends topic (str) and payload (bytes) when a message is received
     message_received = pyqtSignal(str, bytes)
     
@@ -154,6 +166,7 @@ class MqttClient(QObject):
         super().__init__()
         self.broker = broker
         self.port = port
+        self._is_connected = False # Flag to track connection state
         
         self.client = mqtt.Client(mqtt.CallbackAPIVersion.VERSION2, client_id)
         if user and password:
@@ -165,19 +178,29 @@ class MqttClient(QObject):
 
     def on_connect(self, client, userdata, flags, rc, properties):
         if rc == 0:
+            self._is_connected = True
             print("Connection to MQTT Broker successful!")
             self.connection_status_changed.emit(True, "✅ Connected")
             self.connected.emit()
         else:
-            print(f"Failed to connect, return code {rc}\n")
-            self.connection_status_changed.emit(False, f"❌ Connection failed (Code: {rc})")
-            self.disconnected.emit()
+            # Report the specific error from the broker
+            error_message = f"Connection failed (Code: {rc})"
+            if rc == 5:
+                error_message = "❌ Not Authorized: Check username and password."
+            
+            print(f"Failed to connect: {error_message}")
+            self.connection_status_changed.emit(False, error_message)
+            # The on_disconnect callback will handle the generic 'disconnected' signal
 
     def on_disconnect(self, client, userdata, flags, rc, properties):
-        print("Disconnected from MQTT Broker.")
-        self.connection_status_changed.emit(False, "💔 Disconnected")
+        # Only show the generic "Disconnected" message if we were actually connected before.
+        if self._is_connected:
+            print("Disconnected from MQTT Broker.")
+            self.connection_status_changed.emit(False, "💔 Disconnected")
+
+        # Always emit the generic disconnected signal to trigger cleanup in the main window.
         self.disconnected.emit()
-        self.stop_logging_signal.emit()
+        self._is_connected = False
             
     def on_message(self, client, userdata, msg):
         self.message_received.emit(msg.topic, msg.payload)
@@ -188,29 +211,21 @@ class MqttClient(QObject):
         try:
             self.client.connect(self.broker, self.port, 60)
             self.client.loop_start()
-        except socket.gaierror:
-            msg = "Host not found. Check broker address or your internet connection."
-            print(f"❌ Connection Error: {msg}")
-            self.connection_status_changed.emit(False, msg)
-        except (socket.error, ConnectionRefusedError, TimeoutError):
-            msg = "Connection failed. Is the server offline or the port incorrect?"
-            print(f"❌ Connection Error: {msg}")
-            self.connection_status_changed.emit(False, msg)
         except Exception as e:
-            msg = f"An unexpected error occurred: {e}"
+            # Catch any exception during the initial connect call
+            msg = f"Connection Error: {e}"
             print(f"❌ {msg}")
-            self.connection_status_changed.emit(False, f"Error: {e}")
+            self.connection_status_changed.emit(False, msg)
+            self.disconnected.emit()
 
     @pyqtSlot()
     def disconnect_from_broker(self):
         if self.client:
             self.client.loop_stop()
             self.client.disconnect()
-            print("Stopping MQTT network loop.")
     
     def subscribe_to_topic(self, topic):
-        print(f"Subscribing to topic: {topic}")
         self.client.subscribe(topic)
     
     def publish_message(self, topic, payload):
-        self.client.publish(topic, payload)
+        self.client.publish(topic, payload)

ui/main_window.py

@@ -1358,15 +1358,17 @@ class MainWindow(QMainWindow):
         self.update_swap_buttons_state()
     
     def connect_to_mqtt(self):
+
         if self.mqtt_thread and self.mqtt_thread.isRunning():
             print("Cleaning up previous MQTT thread...")
             if self.mqtt_client:
                 self.mqtt_client.disconnect_from_broker()
-                # self.mqtt_client.cleanup()
             self.mqtt_thread.quit()
-            self.mqtt_thread.wait(1000)
+            self.mqtt_thread.wait(1000) # Use a timeout to prevent freezing
+
         if self.save_logs_checkbox.isChecked():
             self.start_csv_logger()
+
         self.reset_dashboard_ui()
         broker = self.broker_input.text()
         user = self.username_input.text()
@@ -1401,9 +1403,13 @@ class MainWindow(QMainWindow):
         self.mqtt_thread = QThread()
         self.mqtt_client = MqttClient(broker, port, user, password, client_id)
         self.mqtt_client.moveToThread(self.mqtt_thread)
-        self.mqtt_client.stop_logging_signal.connect(self.csv_logger.stop_logging)
+        
+        # Connect signals
         self.mqtt_client.connection_status_changed.connect(self.on_connection_status_changed)
         self.mqtt_client.message_received.connect(self.on_message_received)
+        self.mqtt_client.connected.connect(self.start_csv_logger)
+        self.mqtt_client.disconnected.connect(self.stop_csv_logger)
+        
         self.mqtt_thread.started.connect(self.mqtt_client.connect_to_broker)
         self.mqtt_thread.start()
 
@@ -1501,32 +1507,92 @@ class MainWindow(QMainWindow):
 
         else:
 
-            QMessageBox.critical(self, "Connection Failed", message)
+            QMessageBox.critical(self, "Connection Status", message)
 
             self.status_bar_device_id_label.setText("Device ID: ---         |") # Clear the device ID label on disconnect
             self.status_bar_timestamp_label.setText("Last Update: ---") # Clear the timestamp label on disconnect
 
 
-    def update_main_dashboard(self, data):
+    # def update_main_dashboard(self, data):
     
+    #     try:
+    #         ts = datetime.datetime.fromtimestamp(data.get('ts', datetime.datetime.now().timestamp())).strftime('%Y-%m-%d %H:%M:%S')
+    #         device_id = data.get("deviceId", "---- ---- ---- ---- ----")
+    #         self.device_id_display_field.setText(device_id)
+    #         self.last_recv_ts_field.setText(ts)
+    #         slot_payloads = data.get("slotLevelPayload", [])
+    #         for i, slot_data in enumerate(slot_payloads):
+    #             if i < len(self.chamber_widgets):
+    #                 self.chamber_widgets[i].update_data(slot_data)
+    #                 # print("Updating chamber", i+1, slot_data)
+    #             if (i+1) in self.swap_buttons:
+    #                 is_present = slot_data.get("batteryPresent") == 1
+    #                 self.swap_buttons[i+1].setStyleSheet("background-color: #2ecc71;" if is_present else "")
+    #         sdc_value = data.get("stationDiagnosticCode", 0)
+    #         self.sdc_field.setText(str(sdc_value))
+    #         self.update_diagnostic_alarms(sdc_value)
+
+    #         backup_status = data.get("backupSupplyStatus", 0) # Default to 0 if not present
+    #         if backup_status == 1:
+    #             self.backup_supply_indicator.setText("Backup ON")
+    #             self.backup_supply_indicator.setStyleSheet(
+    #             """
+    #             QLabel {
+    #                 background-color: transparent;
+    #                 border: 2px solid #28a745; /* Green */
+    #                 color: #28a745;
+    #                 border-radius: 5px;
+    #                 font-weight: bold;
+    #             }
+    #             """
+    #             )
+    #             # self.top_bar_frame.setStyleSheet("#topBarFrame { border: 1px solid #28a745; }")
+    #         else:
+    #             self.backup_supply_indicator.setText("Backup OFF")
+    #             self.backup_supply_indicator.setStyleSheet(
+    #             """
+    #             QLabel {
+    #                 background-color: transparent;
+    #                 border: 2px solid #dc3545; /* Red */
+    #                 color: #dc3545;
+    #                 border-radius: 5px;
+    #                 font-weight: bold;
+    #             }
+    #             """
+    #             )
+    #             # self.top_bar_frame.setStyleSheet("#topBarFrame { border: 1px solid #dc3545; }")
+
+    #     except Exception as e:
+    #         print(f"Error updating dashboard: {e}")
+
+
+    def update_main_dashboard(self, data):
         try:
             ts = datetime.datetime.fromtimestamp(data.get('ts', datetime.datetime.now().timestamp())).strftime('%Y-%m-%d %H:%M:%S')
-            device_id = data.get("deviceId", "---- ---- ---- ---- ----")
-            self.device_id_display_field.setText(device_id)
             self.last_recv_ts_field.setText(ts)
+            self.device_id_display_field.setText(data.get("deviceId", "---- ---- ---- ---- ----"))
+
             slot_payloads = data.get("slotLevelPayload", [])
             for i, slot_data in enumerate(slot_payloads):
                 if i < len(self.chamber_widgets):
                     self.chamber_widgets[i].update_data(slot_data)
-                    # print("Updating chamber", i+1, slot_data)
-                if (i+1) in self.swap_buttons:
-                    is_present = slot_data.get("batteryPresent") == 1
-                    self.swap_buttons[i+1].setStyleSheet("background-color: #2ecc71;" if is_present else "")
+                
+                # --- THIS IS THE CORRECTED LOGIC ---
+                slot_number = i + 1
+                if slot_number in self.swap_buttons:
+                    # First, check if the button is already part of the user's selection
+                    if slot_number not in self.swap_sequence:
+                        # If NOT selected, update its color based on battery presence
+                        is_present = slot_data.get("batteryPresent") == 1
+                        button = self.swap_buttons[slot_number]
+                        # Set to green if present, otherwise clear the style
+                        button.setStyleSheet("background-color: #2ecc71;" if is_present else "")
+            
             sdc_value = data.get("stationDiagnosticCode", 0)
             self.sdc_field.setText(str(sdc_value))
             self.update_diagnostic_alarms(sdc_value)
 
-            backup_status = data.get("backupSupplyStatus", 0) # Default to 0 if not present
+            backup_status = data.get("backupSupplyStatus", 0)
             if backup_status == 1:
                 self.backup_supply_indicator.setText("Backup ON")
                 self.backup_supply_indicator.setStyleSheet(
@@ -1540,7 +1606,6 @@ class MainWindow(QMainWindow):
                 }
                 """
                 )
-                # self.top_bar_frame.setStyleSheet("#topBarFrame { border: 1px solid #28a745; }")
             else:
                 self.backup_supply_indicator.setText("Backup OFF")
                 self.backup_supply_indicator.setStyleSheet(
@@ -1554,7 +1619,6 @@ class MainWindow(QMainWindow):
                 }
                 """
                 )
-                # self.top_bar_frame.setStyleSheet("#topBarFrame { border: 1px solid #dc3545; }")
 
         except Exception as e:
             print(f"Error updating dashboard: {e}")
@@ -1564,7 +1628,7 @@ class MainWindow(QMainWindow):
         """Formats and prints the periodic data to the terminal as a clean table."""
         try:
             current_time = datetime.datetime.fromtimestamp(decoded_payload.ts).strftime('%Y-%m-%d %H:%M:%S')
-            device_id = data_dict.get("deviceId", "N/A")
+            device_id = data_dict.get("deviceId", " ")
             backup_supply = "ON" if decoded_payload.backupSupplyStatus == 1 else "OFF"
             station_sdc = decoded_payload.stationDiagnosticCode
             
@@ -1587,21 +1651,21 @@ class MainWindow(QMainWindow):
                 is_door_open = chamber_data.get("doorStatus") == 1
                 
                 # Get and format the Slot Temperature
-                slot_temp_raw = chamber_data.get('slotTemperature', 'N/A')
-                slot_temp_celsius = f"{slot_temp_raw / 10:.1f}" if isinstance(slot_temp_raw, int) else "N/A"
+                slot_temp_raw = chamber_data.get('slotTemperature', ' ')
+                slot_temp_celsius = f"{slot_temp_raw / 10:.1f}" if isinstance(slot_temp_raw, int) else " "
                 
                 # Get and format the Battery Temperature
-                battery_temp_raw = chamber_data.get('batteryMaxTemp', 'N/A')
-                battery_temp_celsius = f"{battery_temp_raw / 10:.1f}" if isinstance(battery_temp_raw, int) else "N/A"
+                battery_temp_raw = chamber_data.get('batteryMaxTemp', ' ')
+                battery_temp_celsius = f"{battery_temp_raw / 10:.1f}" if isinstance(battery_temp_raw, int) else " "
                 
                 print(row_format.format(
                     i,
-                    chamber_data.get('batteryIdentification', 'N/A'),
+                    chamber_data.get('batteryIdentification', ' '),
                     "✅" if is_present else "❌",
                     "✅" if is_charging else "❌",
-                    chamber_data.get('soc', 'N/A'),
-                    chamber_data.get('batVoltage', 'N/A'),
-                    chamber_data.get('current', 'N/A'),
+                    chamber_data.get('soc', ' '),
+                    chamber_data.get('batVoltage', ' '),
+                    chamber_data.get('current', ' '),
                     slot_temp_celsius,
                     battery_temp_celsius,
                     "Open" if is_door_open else "Closed"

ui/styles.py

@@ -111,10 +111,10 @@ def get_light_theme_styles(scale=1.0):
         font-weight: bold;
         border-radius: {int(4*scale)}px;
     }}
-    #ChamberOpenDoorButton         {{ background-color: #607d8b; }}
-    #ChamberChgOnButton            {{ background-color: #52be80; }}
-    #ChamberChgOffButton           {{ background-color: #cd6155; }}
-    #ChamberOpenDoorButton:hover {{ background-color: #485c64; }}
+    #ChamberOpenDoorButton         {{ background-color: #d4d4d4; }}
+    #ChamberChgOnButton            {{ background-color: #d4d4d4; }}
+    #ChamberChgOffButton           {{ background-color: #d4d4d4; }}
+    #ChamberOpenDoorButton:hover {{ background-color: #1aa89c; }}
     #ChamberChgOnButton:hover    {{ background-color: #04d45d; }}
     #ChamberChgOffButton:hover   {{ background-color: #d42318; }}
 
@@ -334,10 +334,10 @@ def get_dark_theme_styles(scale=1.0):
         font-weight: bold;
         border-radius: {int(4*scale)}px;
     }}
-    #ChamberOpenDoorButton         {{ background-color: #607d8b; }}
-    #ChamberChgOnButton            {{ background-color: #52be80; }}
-    #ChamberChgOffButton           {{ background-color: #cd6155; }}
-    #ChamberOpenDoorButton:hover   {{ background-color: #485c64; }}
+    #ChamberOpenDoorButton         {{ background-color: #5c5c5c; }}
+    #ChamberChgOnButton            {{ background-color: #5c5c5c; }}
+    #ChamberChgOffButton           {{ background-color: #5c5c5c; }}
+    #ChamberOpenDoorButton:hover   {{ background-color: #1aa89c; }}
     #ChamberChgOnButton:hover      {{ background-color: #04d45d; }}
     #ChamberChgOffButton:hover     {{ background-color: #d42318; }}