Alot of changes

lib/backend/live_information.dart

@@ -67,19 +67,17 @@ class LiveInformation {
     syncedTimeModule = SyncedTimeModule();
     announcementModule = AnnouncementModule();
 
-    // Tracker module is not supported on desktop
-    if (defaultTargetPlatform != TargetPlatform.windows && defaultTargetPlatform != TargetPlatform.linux && defaultTargetPlatform != TargetPlatform.macOS) {
-      // Tracker module is not supported on web
-      Permission.location.request().then((value) {
-        if (value.isGranted) {
-          trackerModule = TrackerModule();
-        }
-      });
-    }
+    initTrackerModule();
 
     print("Initialised LiveInformation");
   }
 
+  Future<void> initTrackerModule() async {
+    if (await Permission.location.isGranted) {
+      trackerModule = TrackerModule();
+    }
+  }
+
   // Auth
   AuthAPI auth = AuthAPI();
 
@@ -120,7 +118,15 @@ class LiveInformation {
     // Cache/Load the audio files
     await announcementModule
         .announcementCache
-        .loadAnnouncementsFromBytes(await LiveInformation().announcementModule.getBundleBytes(), audioFiles);
+        .loadAnnouncementsFromBytes(await LiveInformation().announcementModule.getBundleBytes(), [
+          ...audioFiles,
+          if (!routeVariant.busRoute.routeNumber.toLowerCase().startsWith("ul"))
+            "R_${routeVariant.busRoute.routeNumber}_001.mp3"
+          else
+            "R_RAIL_REPLACEMENT_SERVICE_001.mp3",
+
+        ]
+    );
   }
 
   // Public methods

lib/backend/modules/announcement.dart

@@ -88,10 +88,10 @@ class AnnouncementModule extends InfoModule {
 
         if (currentAnnouncement!.audioSources.isNotEmpty) {
 
-          audioPlayer.loadSource(AudioWrapperAssetSource("assets/audio/5-seconds-of-silence.mp3"));
-          audioPlayer.play();
-          await Future.delayed(const Duration(milliseconds: 300));
-          audioPlayer.stop();
+          // audioPlayer.loadSource(AudioWrapperAssetSource("assets/audio/5-seconds-of-silence.mp3"));
+          // audioPlayer.play();
+          // await Future.delayed(const Duration(milliseconds: 300));
+          // audioPlayer.stop();
 
           // try {
             for (AudioWrapperSource source in currentAnnouncement!.audioSources) {
@@ -100,6 +100,8 @@ class AnnouncementModule extends InfoModule {
 
                 Duration? duration = await audioPlayer.play();
                 await Future.delayed(duration!);
+                audioPlayer.stop();
+                // await Future.delayed(const Duration(milliseconds: 100));
                 if (currentAnnouncement?.audioSources.last != source) {
                   await Future.delayed(const Duration(milliseconds: 100));
                 }
@@ -256,25 +258,37 @@ class AnnouncementModule extends InfoModule {
       );
       return;
     }
+    print("Checkpoint 4");
+
+    print(routeVariant);
+    print("Checkpoint 4.1");
+
 
     String routeNumber = routeVariant.busRoute.routeNumber;
-    String destination = routeVariant.destination!.destination;
+    print("Checkpoint 4.2");
+
+    String destination = routeVariant.destination?.destination ?? "NullPointerException";
+    print("Destination: $destination");
+    print("Checkpoint 4.3");
+
 
     String audioRoute = "R_${routeVariant.busRoute.routeNumber}_001.mp3";
-
+    print("Checkpoint 5");
     await announcementCache.loadAnnouncementsFromBytes(await getBundleBytes(), [audioRoute, "R_RAIL_REPLACEMENT_SERVICE_001.mp3"]);
-
+    print("Checkpoint 6");
     AudioWrapperSource sourceRoute = !routeNumber.toLowerCase().startsWith("ul") ?
       AudioWrapperByteSource(announcementCache[audioRoute]!) :
       AudioWrapperByteSource(announcementCache["R_RAIL_REPLACEMENT_SERVICE_001.mp3"]!);
+    print("Checkpoint 6.1");
     AudioWrapperSource sourceDestination = AudioWrapperByteSource(await routeVariant.destination!.getAudioBytes());
-
+    print("Checkpoint 7");
     AnnouncementQueueEntry announcement = AnnouncementQueueEntry(
       displayText: "$routeNumber to $destination",
       audioSources: [sourceRoute, AudioWrapperAssetSource("audio/to_destination.wav"), sourceDestination],
       scheduledTime: scheduledTime
     );
 
+    print("Checkpoint 8");
     queue.add(announcement);
   }
 

lib/backend/modules/commands.dart

@@ -129,6 +129,8 @@ class CommandModule extends InfoModule {
       else if (args[0].startsWith("dest")) {
         // announce destination <RouteNumber> <RouteVariantIndex> <ScheduledTime>
 
+        print("Checkpoint 1");
+
         String routeNumber = args[1];
         int routeVariantIndex = int.parse(args[2]);
 
@@ -139,9 +141,11 @@ class CommandModule extends InfoModule {
           }
         } catch (e) {}
 
+        print("Checkpoint 2");
         BusRoute route = LiveInformation().busSequences.routes[routeNumber]!;
         BusRouteVariant routeVariant = route.routeVariants.values.toList()[routeVariantIndex];
 
+        print("Checkpoint 3");
         liveInformation.announcementModule.queueAnnouncementByRouteVariant(
           routeVariant: routeVariant,
           scheduledTime: scheduledTime,