Attempt to resolve issue #11 - to be tested

basic.py

@@ -429,10 +429,15 @@ def _force_display_update(self):
 
                 valid_bus_data = [
                     bus for bus in bus_data 
-                    if any(time != "--" for time in bus["times"])
+                    if any(time and time != "--" for time in bus["times"])
                 ]
 
-                if valid_bus_data and not error_message:
+                # Check if we have any bus data at all
+                if not bus_data and not error_message and weather_enabled and weather_data:
+                    logger.info("Initial display: no bus data available, showing weather data")
+                    draw_weather_display(self.epd, weather_data)
+                    self.in_weather_mode = True
+                elif valid_bus_data and not error_message:
                     logger.info(f"Initial display: showing bus data ({len(valid_bus_data)} entries)")
                     current_weather = weather_data['current'] if weather_data else None
                     update_display(self.epd, current_weather, valid_bus_data, error_message, stop_name)
@@ -508,7 +513,17 @@ def _check_display_updates(self):
                     stop_name = self.bus_manager.get_stop_name()
 
                     with self._display_lock:
-                        if valid_bus_data and not error_message:
+                        # Check if we have any bus data at all
+                        if not valid_bus_data and not error_message and weather_enabled and weather_data:
+                            logger.info("No bus data available, switching to weather mode...")
+                            self.in_weather_mode = True
+                            self.perform_full_refresh()
+                            draw_weather_display(self.epd, weather_data)
+                            self.last_weather_data = weather_data
+                            self.last_weather_update = current_time
+                            self.last_display_update = datetime.now()
+                            logger.info("Weather display updated successfully")
+                        elif valid_bus_data and not error_message:
                             logger.info("Updating bus display...")
                             self.in_weather_mode = False
                             self.perform_full_refresh()

bus_service.py

@@ -298,6 +298,11 @@ def get_waiting_times(self) -> tuple[List[Dict], str, str]:
             stop_name = stop_data.get("name", "")
             logger.debug(f"Stop name: {stop_name}")
 
+            # Check if there are any lines in the stop data
+            if not stop_data.get("lines"):
+                logger.info(f"No active lines at stop {stop_name}")
+                return [], None, stop_name
+
             bus_times = []
             for line in self.lines_of_interest:
                 logger.debug(f"Processing line {line}")
@@ -353,7 +358,26 @@ def get_waiting_times(self) -> tuple[List[Dict], str, str]:
                             minutes_source = None
                             minutes = None
                             minutes_emoji = ''
-                        time = f"{minutes_emoji}{minutes}"
+
+                        # Filter out invalid times (negative times less than -5 minutes)
+                        try:
+                            if minutes and isinstance(minutes, str):
+                                # Only clean and check if it might be a negative number
+                                if '-' in minutes:
+                                    # Remove any quotes and non-numeric characters except minus sign
+                                    cleaned_minutes = ''.join(c for c in minutes if c.isdigit() or c == '-')
+                                    if cleaned_minutes:
+                                        minutes_int = int(cleaned_minutes)
+                                        if minutes_int < -5:  # Skip if less than -5 minutes
+                                            logger.warning(f"Skipping invalid negative time: {minutes} minutes")
+                                            minutes = None
+                                            minutes_emoji = ''
+                        except ValueError as e:
+                            logger.warning(f"Could not parse minutes value '{minutes}': {e}")
+                            minutes = None
+                            minutes_emoji = ''
+
+                        time = f"{minutes_emoji}{minutes}" if minutes else ""
                         message = None
 
                         # Check for special messages