Fix: Resolve critical linting issues and bugs (concurrency, syntax, dead code)

apps/mobile/packages/features/client/client_coverage/lib/src/presentation/blocs/coverage_bloc.dart

@@ -1,6 +1,7 @@
 import 'package:flutter_bloc/flutter_bloc.dart';
 import '../../domain/arguments/get_coverage_stats_arguments.dart';
 import '../../domain/arguments/get_shifts_for_date_arguments.dart';
+import 'package:krow_core/core.dart';
 import 'package:krow_domain/krow_domain.dart';
 import '../../domain/usecases/get_coverage_stats_usecase.dart';
 import '../../domain/usecases/get_shifts_for_date_usecase.dart';
@@ -13,14 +14,15 @@ import 'coverage_state.dart';
 /// - Loading shifts for a specific date
 /// - Loading coverage statistics
 /// - Refreshing coverage data
-class CoverageBloc extends Bloc<CoverageEvent, CoverageState> {
+class CoverageBloc extends Bloc<CoverageEvent, CoverageState>
+    with BlocErrorHandler<CoverageState> {
   /// Creates a [CoverageBloc].
   CoverageBloc({
     required GetShiftsForDateUseCase getShiftsForDate,
     required GetCoverageStatsUseCase getCoverageStats,
-  })  : _getShiftsForDate = getShiftsForDate,
-        _getCoverageStats = getCoverageStats,
-        super(const CoverageState()) {
+  }) : _getShiftsForDate = getShiftsForDate,
+       _getCoverageStats = getCoverageStats,
+       super(const CoverageState()) {
     on<CoverageLoadRequested>(_onLoadRequested);
     on<CoverageRefreshRequested>(_onRefreshRequested);
   }
@@ -40,31 +42,31 @@ class CoverageBloc extends Bloc<CoverageEvent, CoverageState> {
       ),
     );
 
-    try {
-      // Fetch shifts and stats concurrently
-      final List<Object> results = await Future.wait<Object>(<Future<Object>>[
-        _getShiftsForDate(GetShiftsForDateArguments(date: event.date)),
-        _getCoverageStats(GetCoverageStatsArguments(date: event.date)),
-      ]);
+    await handleError(
+      emit: emit,
+      action: () async {
+        // Fetch shifts and stats concurrently
+        final List<Object> results = await Future.wait<Object>(<Future<Object>>[
+          _getShiftsForDate(GetShiftsForDateArguments(date: event.date)),
+          _getCoverageStats(GetCoverageStatsArguments(date: event.date)),
+        ]);
 
-      final List<CoverageShift> shifts = results[0] as List<CoverageShift>;
-      final CoverageStats stats = results[1] as CoverageStats;
+        final List<CoverageShift> shifts = results[0] as List<CoverageShift>;
+        final CoverageStats stats = results[1] as CoverageStats;
 
-      emit(
-        state.copyWith(
-          status: CoverageStatus.success,
-          shifts: shifts,
-          stats: stats,
-        ),
-      );
-    } catch (error) {
-      emit(
-        state.copyWith(
-          status: CoverageStatus.failure,
-          errorMessage: error.toString(),
-        ),
-      );
-    }
+        emit(
+          state.copyWith(
+            status: CoverageStatus.success,
+            shifts: shifts,
+            stats: stats,
+          ),
+        );
+      },
+      onError: (String errorKey) => state.copyWith(
+        status: CoverageStatus.failure,
+        errorMessage: errorKey,
+      ),
+    );
   }
 
   /// Handles the refresh requested event.
@@ -78,3 +80,4 @@ class CoverageBloc extends Bloc<CoverageEvent, CoverageState> {
     add(CoverageLoadRequested(date: state.selectedDate!));
   }
 }
+