сделал дата слой + правки

android/app/build.gradle

@@ -47,7 +47,7 @@ android {
         applicationId "com.example.todo"
         // You can update the following values to match your application needs.
         // For more information, see: https://docs.flutter.dev/deployment/android#reviewing-the-gradle-build-configuration.
-        minSdkVersion flutter.minSdkVersion
+        minSdkVersion 24
         targetSdkVersion flutter.targetSdkVersion
         versionCode flutterVersionCode.toInteger()
         versionName flutterVersionName

lib/application/app.dart

@@ -1,6 +1,7 @@
 import 'package:flutter/material.dart';
 import 'package:flutter_bloc/flutter_bloc.dart';
 import 'package:todo/application/di/di.dart';
+import 'package:todo/application/exceptions/handle_exceptions.dart';
 import 'package:todo/application/routes.dart';
 import 'package:todo/generated/l10n.dart';
 import 'package:todo/presentation/blocs/todos_bloc/todos_bloc.dart';
@@ -21,10 +22,12 @@ class App extends StatelessWidget {
           L10n.delegate,
           GlobalMaterialLocalizations.delegate,
           GlobalWidgetsLocalizations.delegate,
+          GlobalCupertinoLocalizations.delegate,
         ],
         supportedLocales: L10n.delegate.supportedLocales,
         routes: routes,
         initialRoute: Routes.main.path,
+        scaffoldMessengerKey: messengerKey,
       ),
     );
   }

lib/application/di/di.dart

@@ -1,18 +1,28 @@
-import 'dart:io';
-
+import 'package:device_info_plus/device_info_plus.dart';
+import 'package:dio/dio.dart';
 import 'package:get_it/get_it.dart';
 import 'package:injectable/injectable.dart';
-import 'package:intl/date_symbol_data_local.dart';
-import 'package:intl/intl.dart';
-import 'package:intl/intl_standalone.dart';
+import 'package:shared_preferences/shared_preferences.dart';
+import 'package:todo/data/services/dio.dart';
 
 import 'di.config.dart';
 
 final getIt = GetIt.instance;
 
 @InjectableInit()
 Future<void> configureDependencies() async {
-  getIt.init();
-  Intl.systemLocale = await findSystemLocale();
-  await initializeDateFormatting();
+  await getIt.init();
+  // Intl.systemLocale = await findSystemLocale();
+  // await initializeDateFormatting();
+}
+
+@module
+abstract class RegisterModule {
+  @lazySingleton
+  Dio get dio => createYandexClient();
+
+  @preResolve
+  Future<SharedPreferences> get prefs => SharedPreferences.getInstance();
+
+  DeviceInfoPlugin get device => DeviceInfoPlugin();
 }

lib/application/env/env.dart

@@ -0,0 +1,9 @@
+import 'package:envied/envied.dart';
+
+part 'env.g.dart';
+
+@Envied(path: '.env')
+abstract class Env {
+  @EnviedField(varName: 'TOKEN')
+  static const String token = _Env.token;
+}

lib/application/exceptions/handle_exceptions.dart

@@ -0,0 +1,26 @@
+import 'package:bloc/bloc.dart';
+import 'package:flutter/material.dart';
+import 'package:todo/uikit/theme.dart';
+
+void handleExceptions() {
+  Bloc.observer = _BlocErrorHandler();
+}
+
+final messengerKey = GlobalKey<ScaffoldMessengerState>();
+ScaffoldMessengerState? get _messenger => messengerKey.currentState;
+
+class _BlocErrorHandler extends BlocObserver {
+  @override
+  void onError(BlocBase bloc, Object error, StackTrace stackTrace) {
+    _messenger?.showSnackBar(ErrorSnackBar(error));
+    super.onError(bloc, error, stackTrace);
+  }
+}
+
+class ErrorSnackBar extends SnackBar {
+  ErrorSnackBar(Object error, {super.key})
+      : super(
+          content: Text(error.toString()),
+          backgroundColor: ColorsUI.red,
+        );
+}

lib/data/dtos/todo_dto/todo_dto.dart

@@ -0,0 +1,24 @@
+import 'package:freezed_annotation/freezed_annotation.dart';
+import 'package:todo/domain/models/todo.dart';
+
+part 'todo_dto.freezed.dart';
+
+part 'todo_dto.g.dart';
+
+@freezed
+class TodoDto with _$TodoDto {
+  const factory TodoDto({
+    Id? id,
+    required String text,
+    required String importance,
+    int? deadline,
+    required bool done,
+    String? color,
+    @JsonKey(name: "created_at") int? createdAt,
+    @JsonKey(name: "changed_at") int? changedAt,
+    @JsonKey(name: "last_updated_by") String? lastUpdatedBy,
+  }) = _TodoDto;
+
+  factory TodoDto.fromJson(Map<String, dynamic> json) =>
+      _$TodoDtoFromJson(json);
+}

lib/data/mappers/todo_mapper.dart

@@ -0,0 +1,38 @@
+import 'package:injectable/injectable.dart';
+import 'package:todo/data/dtos/todo_dto/todo_dto.dart';
+import 'package:todo/domain/models/todo.dart';
+
+@singleton
+class TodoMapper {
+  Todo fromDto(TodoDto dto) {
+    return Todo(
+      id: dto.id,
+      todo: dto.text,
+      completed: dto.done,
+      deadline: dto.deadline != null
+          ? DateTime.fromMillisecondsSinceEpoch(dto.deadline!)
+          : null,
+      priority: _importanceFromDto[dto.importance]!,
+    );
+  }
+
+  TodoDto toDto(Todo todo) {
+    return TodoDto(
+      id: todo.id,
+      text: todo.todo,
+      done: todo.completed,
+      importance: _importanceToDto[todo.priority]!,
+      deadline: todo.deadline?.millisecondsSinceEpoch,
+    );
+  }
+}
+
+const _importanceFromDto = {
+  'low': Priority.low,
+  'basic': Priority.none,
+  'important': Priority.high,
+};
+
+final _importanceToDto = _importanceFromDto.map(
+  (key, value) => MapEntry(value, key),
+);

lib/data/repositories/device_repository.dart

@@ -0,0 +1,22 @@
+import 'dart:io';
+
+import 'package:device_info_plus/device_info_plus.dart';
+import 'package:injectable/injectable.dart';
+
+@singleton
+class DeviceRepository {
+  final DeviceInfoPlugin _device;
+
+  DeviceRepository(this._device);
+
+  Future<String?> getId() async {
+    if (Platform.isIOS) {
+      final iosDeviceInfo = await _device.iosInfo;
+      return iosDeviceInfo.identifierForVendor; // unique ID on iOS
+    } else if (Platform.isAndroid) {
+      final androidDeviceInfo = await _device.androidInfo;
+      return androidDeviceInfo.id; // unique ID on Android
+    }
+    return null;
+  }
+}

lib/data/repositories/todo_repository_memory.dart

@@ -4,11 +4,12 @@ import 'package:injectable/injectable.dart';
 import 'package:todo/application/global.dart';
 import 'package:todo/domain/models/todo.dart';
 import 'package:todo/domain/repositories/todo_repository.dart';
+import 'package:uuid/uuid.dart';
 
-typedef Id = int;
-
-@Singleton(as: TodoRepository)
+// @Singleton(as: TodoRepository)
 class TodoRepositoryMemory implements TodoRepository {
+  static const uuid = Uuid();
+
   final Map<Id, Todo> todos = SplayTreeMap.fromIterables(
     _stub.map((e) => e.id!),
     _stub,
@@ -34,8 +35,8 @@ class TodoRepositoryMemory implements TodoRepository {
   }
 
   @override
-  Future<Todo?> delete(int id) async {
-    logger.d('$id');
+  Future<Todo?> delete(Id id) async {
+    logger.d(id);
 
     return todos.remove(id);
   }
@@ -45,7 +46,7 @@ class TodoRepositoryMemory implements TodoRepository {
     return todos.values.toList();
   }
 
-  int genId() => todos.keys.last + 1;
+  Id genId() => uuid.v1();
 }
 
 final _stub = () {
@@ -89,8 +90,9 @@ final _stub = () {
       deadline: DateTime.now(),
     ),
   ];
+  const uuid = Uuid();
   return [
     for (var i = 0; i < stub.length; i++) //
-      stub[i].copyWith(id: i),
+      stub[i].copyWith(id: uuid.v1()),
   ];
 }();

lib/data/repositories/todo_repository_remote.dart

@@ -0,0 +1,55 @@
+import 'package:injectable/injectable.dart';
+import 'package:todo/data/mappers/todo_mapper.dart';
+import 'package:todo/data/repositories/device_repository.dart';
+import 'package:todo/data/services/todo_service/todo_service.dart';
+import 'package:todo/domain/models/todo.dart';
+import 'package:todo/domain/repositories/todo_repository.dart';
+import 'package:uuid/uuid.dart';
+
+@Singleton(as: TodoRepository)
+class TodoRepositoryRemote implements TodoRepository {
+  final TodoService service;
+  final TodoMapper mapper;
+  final DeviceRepository device;
+
+  static const uuid = Uuid();
+
+  TodoRepositoryRemote(this.service, this.mapper, this.device);
+
+  @override
+  Future<void> add(Todo todo) async {
+    final id = uuid.v1();
+    final dto = mapper.toDto(todo.copyWith(id: id));
+    await service.createTodo(
+      dto.copyWith(
+        createdAt: DateTime.now().millisecondsSinceEpoch,
+        changedAt: DateTime.now().millisecondsSinceEpoch,
+        lastUpdatedBy: (await device.getId())!,
+      ),
+    );
+  }
+
+  @override
+  Future<Todo?> delete(Id id) async {
+    final dto = await service.deleteTodo(id);
+    return mapper.fromDto(dto);
+  }
+
+  @override
+  Future<List<Todo>> getAll() async {
+    final dtos = await service.getTodos();
+    return dtos.map(mapper.fromDto).toList();
+  }
+
+  @override
+  Future<void> update(Todo todo) async {
+    await service.updateTodo(
+      todo.id!,
+      mapper.toDto(todo).copyWith(
+            createdAt: DateTime.now().millisecondsSinceEpoch,
+            changedAt: DateTime.now().millisecondsSinceEpoch,
+            lastUpdatedBy: (await device.getId())!,
+          ),
+    );
+  }
+}

lib/data/services/dio.dart

@@ -0,0 +1,27 @@
+import 'dart:io';
+
+import 'package:dio/dio.dart';
+import 'package:todo/application/env/env.dart';
+
+Dio createYandexClient() {
+  final dio = Dio(
+    BaseOptions(
+      baseUrl: 'https://beta.mrdekk.ru/todobackend',
+      headers: {
+        'Authorization': 'Bearer ${Env.token}',
+      },
+    ),
+  );
+
+  HttpOverrides.global = _HttpPassAllCerts();
+
+  return dio;
+}
+
+class _HttpPassAllCerts extends HttpOverrides {
+  @override
+  HttpClient createHttpClient(SecurityContext? context) {
+    return super.createHttpClient(context)
+      ..badCertificateCallback = (_, __, ___) => true;
+  }
+}