fix: issue-372, issue-227, issue-406

lib/features/plans/presentation/cubit/about_plan_cubit.dart

@@ -7,12 +7,21 @@ import 'package:eatvio_app/features/diets/repositories/diet_repository.dart';
 import 'package:eatvio_app/features/plans/models/chosen_plan_model.dart';
 import 'package:eatvio_app/features/plans/presentation/cubit/about_plan_state.dart';
 import 'package:eatvio_app/features/plans/repositories/plan_repository.dart';
+import 'package:eatvio_app/features/profile/models/chosen_diets_pagination_model.dart';
+import 'package:eatvio_app/features/profile/repositories/profile_repository.dart';
 import 'package:flutter_bloc/flutter_bloc.dart';
 import 'package:eatvio_app/core/error_reporting/report_from.dart';
 
 class AboutPlanCubit extends Cubit<AboutPlanState> {
   final PlanRepository planRepository;
-  AboutPlanCubit({required this.planRepository}) : super(AboutPlanState.initial());
+  final ProfileRepository profileRepository;
+  final DietRepository dietRepository;
+
+  AboutPlanCubit({
+    required this.planRepository,
+    required this.profileRepository,
+    required this.dietRepository,
+  }) : super(AboutPlanState.initial());
 
   Future<void> getPlan({required String slug, int? index}) async {
     try {
@@ -141,6 +150,38 @@ class AboutPlanCubit extends Cubit<AboutPlanState> {
     return (null, '');
   }
 
+  /// Активная публичная диета (без привязки к плану) в статусах inited/started.
+  Future<ChosenDietModel?> getActivePublicDiet() async {
+    try {
+      final chosenDiets = await profileRepository.getChosenDiets();
+      final lastChosenDiet = chosenDiets.firstOrNull;
+      if (lastChosenDiet == null) {
+        return null;
+      }
+      final isActive = ['inited', 'started'].contains(lastChosenDiet.state);
+      final isPublic = lastChosenDiet.chosenPlanId == 0;
+      if (isActive && isPublic && lastChosenDiet.dietId != null) {
+        return lastChosenDiet;
+      }
+      return null;
+    } catch (e, st) {
+      await reportFrom(e, st, this);
+      log(e.toString(), stackTrace: st);
+      return null;
+    }
+  }
+
+  Future<bool> cancelPublicDiet(int dietId) async {
+    try {
+      await dietRepository.cancelDiet(dietId);
+      return true;
+    } catch (e, st) {
+      await reportFrom(e, st, this);
+      log(e.toString(), stackTrace: st);
+      return false;
+    }
+  }
+
   String _getOptionNameFromIndex(int index) => switch (index) {
     1 => 'options2',
     2 => 'options3',