feat(app): Добавить пример со Scope (#5)

* feat(app): Добавить пример со Scope

* fix scope

* feat: добавить скоуп с внутренней зависимостью от репозитория (#6)

Co-authored-by: Artem Barkalov <artembark@gmail.com>

* feat: исправить обалсть видимости ProfileScope

* feat: добавить фикс namespace плагинов

---------

Co-authored-by: PetrovY <y.petrov@friflex.com>
Co-authored-by: Artem Barkalov <artembark@gmail.com>

lib/features/profile_scope/data/repository/profile_scope_mock_repository.dart

@@ -0,0 +1,14 @@
+import '../../domain/repository/i_profile_scope_repository.dart';
+
+/// {@template ProfileScopeMockRepository}
+///
+/// {@endtemplate}
+final class ProfileScopeMockRepository implements IProfileScopeRepository {
+  @override
+  String get name => 'ProfileScopeMockRepository';
+
+  @override
+  Future<String> fetchUserProfile(String id) async {
+    return 'MOCK Yura Petrov';
+  }
+}

lib/features/profile_scope/data/repository/profile_scope_repository.dart

@@ -0,0 +1,24 @@
+import 'package:friflex_starter/app/http/i_http_client.dart';
+
+import '../../domain/repository/i_profile_scope_repository.dart';
+
+/// {@template ProfileScopeRepository}
+///
+/// {@endtemplate}
+final class ProfileScopeRepository implements IProfileScopeRepository {
+  final IHttpClient httpClient;
+
+  ProfileScopeRepository({required this.httpClient});
+
+  @override
+  String get name => 'ProfileScopeRepository';
+
+  @override
+  Future<String> fetchUserProfile(String id) async {
+    // Какой-то запрос к серверу
+    await Future.delayed(const Duration(seconds: 1));
+    // httpClient.get('https://example.com/profile/$id');
+
+    return 'Yura Petrov';
+  }
+}

lib/features/profile_scope/domain/bloc/profile_scope_bloc.dart

@@ -0,0 +1,41 @@
+import 'package:equatable/equatable.dart';
+import 'package:flutter_bloc/flutter_bloc.dart';
+import 'package:friflex_starter/features/profile_scope/domain/repository/i_profile_scope_repository.dart';
+
+part 'profile_scope_event.dart';
+part 'profile_scope_state.dart';
+
+class ProfileScopeBloc extends Bloc<ProfileScopeEvent, ProfileScopeState> {
+  ProfileScopeBloc({required IProfileScopeRepository profileRepository})
+      : _profileRepository = profileRepository,
+        super(ProfileScopeInitialState()) {
+    // Вам необходимо добавлять только
+    // один обработчик событий в конструкторе
+    on<ProfileScopeEvent>((event, emit) async {
+      return switch (event) {
+        ProfileScopeFetchProfileEvent() => await _fetchProfile(event, emit),
+      };
+    });
+  }
+
+  final IProfileScopeRepository _profileRepository;
+
+  Future<void> _fetchProfile(
+    ProfileScopeFetchProfileEvent event,
+    Emitter<ProfileScopeState> emit,
+  ) async {
+    try {
+      emit(ProfileScopeWaitingState());
+      final data = await _profileRepository.fetchUserProfile(event.id);
+      emit(ProfileScopeSuccessState(data: data));
+    } on Object catch (error, stackTrace) {
+      emit(
+        ProfileScopeErrorState(
+          message: 'Ошибка при загрузке профиля',
+          error: error,
+          stackTrace: stackTrace,
+        ),
+      );
+    }
+  }
+}

lib/features/profile_scope/domain/bloc/profile_scope_event.dart

@@ -0,0 +1,17 @@
+part of 'profile_scope_bloc.dart';
+
+sealed class ProfileScopeEvent extends Equatable {
+  const ProfileScopeEvent();
+
+  @override
+  List<Object> get props => [];
+}
+
+final class ProfileScopeFetchProfileEvent extends ProfileScopeEvent {
+  final String id;
+
+  const ProfileScopeFetchProfileEvent({required this.id});
+
+  @override
+  List<Object> get props => [id];
+}

lib/features/profile_scope/domain/bloc/profile_scope_state.dart

@@ -0,0 +1,36 @@
+part of 'profile_scope_bloc.dart';
+
+sealed class ProfileScopeState extends Equatable {
+  const ProfileScopeState();
+
+  @override
+  List<Object> get props => [];
+}
+
+final class ProfileScopeInitialState extends ProfileScopeState {}
+
+final class ProfileScopeWaitingState extends ProfileScopeState {}
+
+final class ProfileScopeErrorState extends ProfileScopeState {
+  final String message;
+  final Object error;
+  final StackTrace? stackTrace;
+
+  const ProfileScopeErrorState({
+    required this.message,
+    required this.error,
+    this.stackTrace,
+  });
+
+  @override
+  List<Object> get props => [message, error];
+}
+
+final class ProfileScopeSuccessState extends ProfileScopeState {
+  final Object data;
+
+  const ProfileScopeSuccessState({required this.data});
+
+  @override
+  List<Object> get props => [data];
+}

lib/features/profile_scope/domain/repository/i_profile_scope_repository.dart

@@ -0,0 +1,8 @@
+import 'package:friflex_starter/di/di_base_repo.dart';
+
+/// {@template IProfileScopeRepository}
+///
+/// {@endtemplate}
+abstract interface class IProfileScopeRepository with DiBaseRepo {
+  Future<String> fetchUserProfile(String id);
+}

lib/features/profile_scope/presentation/profile_scope.dart

@@ -0,0 +1,77 @@
+import 'package:flutter/material.dart';
+import 'package:friflex_starter/app/app_context_ext.dart';
+import 'package:friflex_starter/features/profile_scope/domain/bloc/profile_scope_bloc.dart';
+
+class ProfileInheritedScope extends InheritedWidget {
+  const ProfileInheritedScope({
+    required this.profileScopeBloc,
+    required super.child,
+    super.key,
+  });
+
+  final ProfileScopeBloc profileScopeBloc;
+
+  @override
+  bool updateShouldNotify(ProfileInheritedScope oldWidget) =>
+      profileScopeBloc != oldWidget.profileScopeBloc;
+}
+
+class ProfileScope extends StatefulWidget {
+  const ProfileScope({
+    required this.child,
+    super.key,
+  });
+
+  final Widget child;
+
+  static ProfileInheritedScope? maybeOf(
+    BuildContext context, {
+    bool listen = false,
+  }) {
+    return listen
+        ? context.dependOnInheritedWidgetOfExactType<ProfileInheritedScope>()
+        : context.getInheritedWidgetOfExactType<ProfileInheritedScope>();
+  }
+
+  static ProfileInheritedScope of(
+    BuildContext context, {
+    bool listen = false,
+  }) {
+    final result = maybeOf(context, listen: listen);
+
+    if (result == null) {
+      throw StateError(
+        'ProfileScope is not found above widget ${context.widget}',
+      );
+    }
+
+    return result;
+  }
+
+  @override
+  State<StatefulWidget> createState() => _ProfileScopeState();
+}
+
+class _ProfileScopeState extends State<ProfileScope> {
+  late final ProfileScopeBloc _profileScopeBloc;
+
+  @override
+  void initState() {
+    super.initState();
+
+    _profileScopeBloc =
+        ProfileScopeBloc(profileRepository: context.di.repositories.profileScopeRepository);
+    _profileScopeBloc.add(const ProfileScopeFetchProfileEvent(id: '1'));
+  }
+
+  @override
+  void dispose() {
+    _profileScopeBloc.close();
+    super.dispose();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return ProfileInheritedScope(profileScopeBloc: _profileScopeBloc, child: widget.child);
+  }
+}

lib/features/profile_scope/presentation/screens/profile_scope_screen.dart

@@ -0,0 +1,39 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_bloc/flutter_bloc.dart';
+import 'package:friflex_starter/features/profile_scope/domain/bloc/profile_scope_bloc.dart';
+import 'package:friflex_starter/features/profile_scope/presentation/profile_scope.dart';
+
+// Класс экрана, где мы инициализируем ProfileScopeBloc
+class ProfileScopeScreen extends StatelessWidget {
+  const ProfileScopeScreen({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return const ProfileScope(
+      child: _ProfileScopeView(),
+    );
+  }
+}
+
+class _ProfileScopeView extends StatelessWidget {
+  const _ProfileScopeView();
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(title: const Text('Profile Scope')),
+      body: Center(
+        child: BlocBuilder<ProfileScopeBloc, ProfileScopeState>(
+          bloc: ProfileScope.of(context).profileScopeBloc,
+          builder: (context, state) {
+            return switch (state) {
+              ProfileScopeSuccessState() => Text('Data: ${state.props.first}'),
+              ProfileScopeErrorState() => Text('Error: ${state.message}'),
+              _ => const CircularProgressIndicator(),
+            };
+          },
+        ),
+      ),
+    );
+  }
+}