✨ add error handling for the classes page

B3-3iL-DLW · May 31, 2024 · 06e37ab · 06e37ab
1 parent 2585e3b
commit 06e37ab
Show file tree

Hide file tree

Showing 3 changed files with 26 additions and 12 deletions.
diff --git a/frontend/app_student/lib/api/class_groups/repositories/class_group_repository.dart b/frontend/app_student/lib/api/class_groups/repositories/class_group_repository.dart
@@ -1,3 +1,4 @@
+import 'dart:async';
 import 'dart:io';
 
 import 'package:app_student/api/class_groups/entities/class_group_entity.dart';
@@ -19,16 +20,18 @@ class ClassGroupRepository {
           throw FormatException('Failed to parse JSON: $e');
         }
       });
-    } on HttpException catch (he) {
-      throw Exception('HTTP error: $he');
-    } on FormatException catch (fe) {
-      throw Exception('Failed to parse JSON: $fe');
-    } on SocketException catch (se) {
-      throw Exception('No internet connection: $se');
-    } on TypeError catch (te) {
-      throw Exception('Type error: $te');
+    } on ArgumentError catch (_) {
+      rethrow;
+    } on SocketException catch (_) {
+      rethrow;
+    } on FormatException catch (_) {
+      rethrow;
+    } on TimeoutException catch (_) {
+      rethrow;
+    } on HttpException catch (_) {
+      rethrow;
     } catch (e) {
-      throw Exception('Failed to load data: $e');
+      throw Exception(e.toString());
     }
   }
 }
diff --git a/frontend/app_student/lib/class_groups/cubit/class_group_cubit.dart b/frontend/app_student/lib/class_groups/cubit/class_group_cubit.dart
@@ -18,12 +18,14 @@ class ClassGroupCubit extends Cubit<ClassGroupState> {
       emit(ClassGroupLoading());
       final classes = await classRepository.getClasses();
       emit(ClassGroupLoaded(classes));
+    } on HttpException catch (he) {
+      emit(ClassGroupError(he.message));
     } on SocketException catch (se) {
       emit(ClassGroupError(se.message));
     } on FormatException catch (fe) {
       emit(ClassGroupError(fe.message));
-    } on HttpException catch (he) {
-      emit(ClassGroupError(he.message));
+    } on ArgumentError catch (ae) {
+      emit(ClassGroupError(ae.message));
     } catch (e) {
       emit(ClassGroupError(e.toString()));
     }

diff --git a/frontend/app_student/lib/class_groups/views/class_group_page.dart b/frontend/app_student/lib/class_groups/views/class_group_page.dart
@@ -4,6 +4,7 @@ import 'package:app_student/users/cubit/user_cubit.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_bloc/flutter_bloc.dart';
 import 'package:flutter_gen/gen_l10n/app_localizations.dart';
+import 'package:fluttertoast/fluttertoast.dart';
 import 'package:go_router/go_router.dart';
 
 import '../../shared_components/app_bar.dart';
@@ -54,7 +55,15 @@ class ClassGroupPage extends StatelessWidget {
                     ],
                   );
                 } else if (classState is ClassGroupError) {
-                  return const NetworkError();
+                  WidgetsBinding.instance.addPostFrameCallback((_) {
+                    Fluttertoast.showToast(
+                      msg: AppLocalizations.of(context)!.errors_code(classState.message),
+                      toastLength: Toast.LENGTH_LONG,
+                      gravity: ToastGravity.BOTTOM,
+                      textColor: Colors.white,
+                    );
+                  });
+                  return const SizedBox.shrink();
                 } else {
                   return const Center(child: CircularProgressIndicator());
                 }