getting spaces and rooms from api {null checks}

lib/features/app_layout/bloc/nav_cubit.dart

@@ -16,6 +16,13 @@ class NavCubit extends Cubit<NavState> {
   NavCubit() : super(NavInitial());
 
   static NavCubit of(context) => BlocProvider.of<NavCubit>(context);
+
+  //functoin to do the important work when the user logs out
+  static clear() {
+    pageIndex = 0;
+    pageController.jumpToPage(0);
+  }
+
   static int pageIndex = 0;
 
   static Map<String, List<Widget>> appBarActions = {
@@ -139,11 +146,10 @@ class NavCubit extends Cubit<NavState> {
     const MenuView(),
   ];
 
-  final PageController pageController = PageController();
+  static final PageController pageController = PageController();
 
   void updatePageIndex(int index) {
     pageIndex = index;
-    print('index: $index');
     pageController.animateToPage(index,
         duration: const Duration(milliseconds: 150), curve: Curves.easeIn);
     emit(NavChangePage());

lib/features/app_layout/bloc/spaces_cubit.dart

@@ -10,7 +10,11 @@ part 'spaces_state.dart';
 
 class SpacesCubit extends Cubit<SpacesState> {
   SpacesCubit() : super(SpacesInitial()) {
-    fetchSpaces();
+    fetchSpaces().then((value) {
+      if (selectedSpace != null) {
+        fetchRooms(selectedSpace!);
+      }
+    });
   }
 
   static SpacesCubit get(context) => BlocProvider.of(context);
@@ -83,12 +87,24 @@ class SpacesCubit extends Cubit<SpacesState> {
     emit(SpacesLoading());
     try {
       spaces = await SpacesAPI.getSpaces();
+      spaces.isNotEmpty ? selectSpace(spaces.first) : null;
       emit(SpacesLoaded(spaces));
     } on DioException catch (e) {
-      emit(SpacesError(e.message ?? "Something went wrong"));
-      throw ServerFailure.fromDioError(e);
-    } catch (e) {
-      emit(SpacesError(e.toString()));
+      emit(SpacesError(ServerFailure.fromDioError(e).errMessage));
+    }
+  }
+
+  fetchRooms(SpaceModel space) async {
+    emit(SpaceRoomsLoading());
+    try {
+      space.rooms = await SpacesAPI.getRooms(space.id!);
+      if (space.rooms != null) {
+        emit(SpaceRoomsLoaded(space.rooms!));
+      } else {
+        emit(SpaceRoomsError("No rooms found"));
+      }
+    } on DioException catch (e) {
+      emit(SpacesError(ServerFailure.fromDioError(e).errMessage));
     }
   }
 }

lib/features/app_layout/bloc/spaces_state.dart

@@ -18,6 +18,18 @@ class SpacesError extends SpacesState {
   SpacesError(this.errMessage);
 }
 
+class SpaceRoomsLoading extends SpacesLoading {}
+
+class SpaceRoomsLoaded extends SpacesLoading {
+  final List<RoomModel> rooms;
+
+  SpaceRoomsLoaded(this.rooms);
+}
+
+class SpaceRoomsError extends SpacesError {
+  SpaceRoomsError(super.errMessage);
+}
+
 class SpacesSelected extends SpacesState {
   final SpaceModel space;