Шестая сделано

lib/components/utils/debounce.dart

@@ -0,0 +1,20 @@
+import 'dart:async';
+import 'dart:ui';
+
+class Debounce{
+  factory Debounce() => _instance;
+
+  Debounce._();
+
+  static final Debounce _instance = Debounce._();
+
+  static Timer? _timer;
+
+  static void run(
+      VoidCallback action, {
+        Duration delay = const Duration(milliseconds: 500),
+  }) {
+    _timer?.cancel();
+    _timer = Timer(delay, action);
+  }
+}

lib/data/repositories/api_interface.dart

@@ -1,6 +1,6 @@
 
 import 'package:untitled/domain/models/card.dart';
-
+typedef OnErrorCallback = void Function(String? error);
 abstract class ApiInterface {
   Future<List<CardData>?> loadData();
 }

lib/data/repositories/fortnite_reppository.dart

@@ -15,7 +15,7 @@ class FortniteRepository extends ApiInterface{
   static const String _baseUrl = 'https://fortnite-api.com';
 
   @override
-  Future<List<CardData>?> loadData({String? q}) async {
+  Future<List<CardData>?> loadData({String? q, OnErrorCallback? onError}) async {
     try{
       String url = '$_baseUrl/v2/cosmetics/br/search/all?type=pickaxe';
       if(q != null && q != ""){
@@ -28,6 +28,7 @@ class FortniteRepository extends ApiInterface{
       final List<CardData>? data = dto.data?.map((e) => e.toDomain()).toList();
       return data;
     } on DioException catch (e){
+      onError?.call(e.error?.toString());
       return null;
     }
   }

lib/main.dart

@@ -1,4 +1,7 @@
 import 'package:flutter/material.dart';
+import 'package:flutter_bloc/flutter_bloc.dart';
+import 'package:untitled/data/repositories/fortnite_reppository.dart';
+import 'package:untitled/presentation/home_page/bloc/bloc.dart';
 import 'package:untitled/presentation/home_page/home_page.dart';
 
 void main() {
@@ -16,7 +19,15 @@ class MyApp extends StatelessWidget {
         colorScheme: ColorScheme.fromSeed(seedColor: Colors.deepPurple),
         useMaterial3: true,
       ),
-      home: const MyHomePage(title: 'PMU Sagirov Marsel PIbd-31'),
+      home: RepositoryProvider<FortniteRepository>(
+        lazy: true,
+        create: (_) => FortniteRepository(),
+        child: BlocProvider<HomeBlock>(
+          lazy: false,
+          create: (context) => HomeBlock(context.read<FortniteRepository>()),
+          child: const MyHomePage(title: "PIbd-31 Sagirov Marsel"),
+        ),
+      ),
     );
   }
 }

lib/presentation/home_page/bloc/bloc.dart

@@ -0,0 +1,25 @@
+import 'package:flutter_bloc/flutter_bloc.dart';
+import 'package:untitled/data/repositories/fortnite_reppository.dart';
+import 'package:untitled/presentation/home_page/bloc/events.dart';
+import 'package:untitled/presentation/home_page/bloc/state.dart';
+
+class HomeBlock extends Bloc<HomeEvent, HomeState> {
+  final FortniteRepository repo;
+
+  HomeBlock(this.repo) : super(const HomeState()){
+    on<HomeLoadDataEvent>(_onLoadData);
+  }
+
+  Future<void> _onLoadData (HomeLoadDataEvent event, Emitter<HomeState> emit) async {
+    emit(state.copyWith(isLoading: true));
+    String? error;
+
+    final data = await repo.loadData(q: event.search, onError: (e) => error = e);
+
+    emit(state.copyWith(
+      isLoading: false,
+      data: data,
+      error: error,
+    ));
+  }
+}

lib/presentation/home_page/bloc/events.dart

@@ -0,0 +1,8 @@
+abstract class HomeEvent {
+  const HomeEvent();
+}
+
+class HomeLoadDataEvent extends HomeEvent{
+  final String? search;
+  const HomeLoadDataEvent({this.search});
+}

lib/presentation/home_page/bloc/state.dart

@@ -0,0 +1,15 @@
+import 'package:equatable/equatable.dart';
+import 'package:untitled/domain/models/card.dart';
+
+class HomeState extends Equatable{
+  final List<CardData>? data;
+  final bool isLoading;
+  final String? error;
+
+  const HomeState({this.data, this.isLoading = false, this.error});
+
+  HomeState copyWith({List<CardData>? data, bool? isLoading, String? error}) => HomeState(data:  data ?? this.data, isLoading: isLoading ?? this.isLoading, error: error ?? this.error);
+
+  @override
+  List<Object?> get props => [data,isLoading,error];
+}

lib/presentation/home_page/home_page.dart

@@ -1,7 +1,10 @@
 import 'package:flutter/cupertino.dart';
 import 'package:flutter/material.dart';
-import 'package:untitled/data/repositories/fortnite_reppository.dart';
-
+import 'package:flutter_bloc/flutter_bloc.dart';
+import 'package:untitled/presentation/home_page/bloc/bloc.dart';
+import 'package:untitled/presentation/home_page/bloc/events.dart';
+import 'package:untitled/presentation/home_page/bloc/state.dart';
+import '../../components/utils/debounce.dart';
 import '../../domain/models/card.dart';
 import '../details_page/details_page.dart';
 part 'card.dart';
@@ -35,55 +38,69 @@ class Body extends StatefulWidget {
   State<Body> createState() => _BodyState();
 }
 class _BodyState extends State<Body> {
-
   final searchController = TextEditingController();
-  late Future<List<CardData>?> data;
-  final repo = FortniteRepository();
+
   @override
   void initState() {
-    data = repo.loadData();
+    WidgetsBinding.instance.addPostFrameCallback((_) {
+      context.read<HomeBlock>().add(const HomeLoadDataEvent());
+    });
     super.initState();
   }
   @override
+  void dispose() {
+    searchController.dispose();
+    super.dispose();
+  }
+  Future<void> _onRefresh() {
+    context.read<HomeBlock>().add(HomeLoadDataEvent(search: searchController.text));
+    return Future.value(null);
+  }
+  @override
   Widget build(BuildContext context) {
-    return Padding(
-      padding: EdgeInsets.only(top: MediaQuery.of(context).padding.top),
-      child: Column(
+    return Column(
         children: [
           Padding(
             padding: const EdgeInsets.all(12),
             child: CupertinoSearchTextField(
               controller: searchController,
               onSubmitted: (search) {
-                setState(() {
-                  data = repo.loadData(q: search);
-                });
+                Debounce.run(() => context.read<HomeBlock>().add(HomeLoadDataEvent(search: search)));
               },
             ),
           ),
-          Expanded(
-            child: Center(
-              child: FutureBuilder<List<CardData>?>(
-                future: data,
-                builder: (context, snapshot) => SingleChildScrollView(
-                  child: snapshot.hasData ? Column(
-                    mainAxisAlignment: MainAxisAlignment.center,
-                    children: snapshot.data?.map((data) { return _Card.fromData(
-                              data,
-                              onLike: (String name, bool isLiked) =>
-                                  _showSnackBar(context, name, isLiked),
-                              onTap: () => _navToDetails(context, data),
-                            );
-                        }).toList() ?? [],
+          BlocBuilder<HomeBlock, HomeState>(
+            builder: (context,state) => state.error != null ?
+             Text(
+               state.error ?? "",
+               style: Theme.of(context).textTheme.headlineSmall?.copyWith(color: Colors.red),
+             )
+            :
+            state.isLoading ?
+                const CircularProgressIndicator() :
+                Expanded(
+                  child: RefreshIndicator(
+                    onRefresh: _onRefresh,
+                    child: ListView.builder(
+                      padding: EdgeInsets.zero,
+                      itemCount: state.data?.length ?? 0,
+                      itemBuilder: (context, index) {
+                        final data = state.data?[index];
+                        return data != null
+                            ? _Card.fromData(
+                          data,
+                          onLike: (name, isLiked) =>
+                              _showSnackBar(context, name, isLiked),
+                          onTap: () => _navToDetails(context,data),
+                        )
+                            : const SizedBox.shrink();
+                      },
+                    ),
                   )
-                  : const CircularProgressIndicator(),
-                ),
-              ),
-            ),
-          ),
+              )
+          )
         ],
-      ),
-    );
+      );
   }
 
   void _showSnackBar(BuildContext context, String name, bool isLiked) {

pubspec.lock

@@ -38,6 +38,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "2.11.0"
+  bloc:
+    dependency: transitive
+    description:
+      name: bloc
+      sha256: "106842ad6569f0b60297619e9e0b1885c2fb9bf84812935490e6c5275777804e"
+      url: "https://pub.dev"
+    source: hosted
+    version: "8.1.4"
   boolean_selector:
     dependency: transitive
     description:
@@ -198,6 +206,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "2.0.0"
+  equatable:
+    dependency: "direct main"
+    description:
+      name: equatable
+      sha256: c2b87cb7756efdf69892005af546c56c0b5037f54d2a88269b4f347a505e3ca2
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.0.5"
   fake_async:
     dependency: transitive
     description:
@@ -227,6 +243,14 @@ packages:
     description: flutter
     source: sdk
     version: "0.0.0"
+  flutter_bloc:
+    dependency: "direct main"
+    description:
+      name: flutter_bloc
+      sha256: b594505eac31a0518bdcb4b5b79573b8d9117b193cc80cc12e17d639b10aa27a
+      url: "https://pub.dev"
+    source: hosted
+    version: "8.1.6"
   flutter_lints:
     dependency: "direct dev"
     description:
@@ -392,6 +416,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "2.0.0"
+  nested:
+    dependency: transitive
+    description:
+      name: nested
+      sha256: "03bac4c528c64c95c722ec99280375a6f2fc708eec17c7b3f07253b626cd2a20"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.0.0"
   package_config:
     dependency: transitive
     description:
@@ -424,6 +456,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.4.0"
+  provider:
+    dependency: transitive
+    description:
+      name: provider
+      sha256: c8a055ee5ce3fd98d6fc872478b03823ffdb448699c6ebdbbc71d59b596fd48c
+      url: "https://pub.dev"
+    source: hosted
+    version: "6.1.2"
   pub_semver:
     dependency: transitive
     description:

pubspec.yaml

@@ -38,7 +38,8 @@ dependencies:
   json_annotation: ^4.8.1
   dio: ^5.4.2+1
   pretty_dio_logger: ^1.4.0
-
+  equatable: ^2.0.5
+  flutter_bloc: ^8.1.5
 dev_dependencies:
   flutter_test:
     sdk: flutter