implement service get dicover movies

lib/main.dart

@@ -1,119 +1,49 @@
+import 'package:dio/dio.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_native_splash/flutter_native_splash.dart';
+import 'package:provider/provider.dart';
+import 'package:yt_flutter_movie_db/app_constants.dart';
+import 'package:yt_flutter_movie_db/movie/pages/movie_page.dart';
+import 'package:yt_flutter_movie_db/movie/providers/movie_get_discover_provider.dart';
+import 'package:yt_flutter_movie_db/movie/repostories/movie_repository.dart';
+import 'package:yt_flutter_movie_db/movie/repostories/movie_repository_impl.dart';
 
 void main() {
   WidgetsBinding widgetsBinding = WidgetsFlutterBinding.ensureInitialized();
   FlutterNativeSplash.preserve(widgetsBinding: widgetsBinding);
-  runApp(const MyApp());
-  FlutterNativeSplash.remove();
-}
-
-class MyApp extends StatelessWidget {
-  const MyApp({super.key});
 
-  // This widget is the root of your application.
-  @override
-  Widget build(BuildContext context) {
-    return MaterialApp(
-      title: 'Flutter Demo',
-      theme: ThemeData(
-        // This is the theme of your application.
-        //
-        // Try running your application with "flutter run". You'll see the
-        // application has a blue toolbar. Then, without quitting the app, try
-        // changing the primarySwatch below to Colors.green and then invoke
-        // "hot reload" (press "r" in the console where you ran "flutter run",
-        // or simply save your changes to "hot reload" in a Flutter IDE).
-        // Notice that the counter didn't reset back to zero; the application
-        // is not restarted.
-        primarySwatch: Colors.blue,
-      ),
-      home: const MyHomePage(title: 'Flutter Demo Home Page'),
-    );
-  }
-}
+  final dioOptions = BaseOptions(
+    baseUrl: AppConstants.baseUrl,
+    queryParameters: {'api_key': AppConstants.apiKey},
+  );
 
-class MyHomePage extends StatefulWidget {
-  const MyHomePage({super.key, required this.title});
+  final Dio dio = Dio(dioOptions);
+  final MovieRepository movieRepository = MovieRepositoryImpl(dio);
 
-  // This widget is the home page of your application. It is stateful, meaning
-  // that it has a State object (defined below) that contains fields that affect
-  // how it looks.
-
-  // This class is the configuration for the state. It holds the values (in this
-  // case the title) provided by the parent (in this case the App widget) and
-  // used by the build method of the State. Fields in a Widget subclass are
-  // always marked "final".
-
-  final String title;
-
-  @override
-  State<MyHomePage> createState() => _MyHomePageState();
+  runApp(App(movieRepository: movieRepository));
+  FlutterNativeSplash.remove();
 }
 
-class _MyHomePageState extends State<MyHomePage> {
-  int _counter = 0;
+class App extends StatelessWidget {
+  const App({super.key, required this.movieRepository});
 
-  void _incrementCounter() {
-    setState(() {
-      // This call to setState tells the Flutter framework that something has
-      // changed in this State, which causes it to rerun the build method below
-      // so that the display can reflect the updated values. If we changed
-      // _counter without calling setState(), then the build method would not be
-      // called again, and so nothing would appear to happen.
-      _counter++;
-    });
-  }
+  final MovieRepository movieRepository;
 
   @override
   Widget build(BuildContext context) {
-    // This method is rerun every time setState is called, for instance as done
-    // by the _incrementCounter method above.
-    //
-    // The Flutter framework has been optimized to make rerunning build methods
-    // fast, so that you can just rebuild anything that needs updating rather
-    // than having to individually change instances of widgets.
-    return Scaffold(
-      appBar: AppBar(
-        // Here we take the value from the MyHomePage object that was created by
-        // the App.build method, and use it to set our appbar title.
-        title: Text(widget.title),
-      ),
-      body: Center(
-        // Center is a layout widget. It takes a single child and positions it
-        // in the middle of the parent.
-        child: Column(
-          // Column is also a layout widget. It takes a list of children and
-          // arranges them vertically. By default, it sizes itself to fit its
-          // children horizontally, and tries to be as tall as its parent.
-          //
-          // Invoke "debug painting" (press "p" in the console, choose the
-          // "Toggle Debug Paint" action from the Flutter Inspector in Android
-          // Studio, or the "Toggle Debug Paint" command in Visual Studio Code)
-          // to see the wireframe for each widget.
-          //
-          // Column has various properties to control how it sizes itself and
-          // how it positions its children. Here we use mainAxisAlignment to
-          // center the children vertically; the main axis here is the vertical
-          // axis because Columns are vertical (the cross axis would be
-          // horizontal).
-          mainAxisAlignment: MainAxisAlignment.center,
-          children: <Widget>[
-            const Text(
-              'You have pushed the button this many times:',
-            ),
-            Text(
-              '$_counter',
-              style: Theme.of(context).textTheme.headline4,
-            ),
-          ],
+    return MultiProvider(
+      providers: [
+        ChangeNotifierProvider(
+          create: (_) => MovieGetDiscoverProvider(movieRepository),
+        ),
+      ],
+      child: MaterialApp(
+        title: 'Flutter Demo',
+        theme: ThemeData(
+          primarySwatch: Colors.blue,
         ),
+        home: const MoviePage(),
       ),
-      floatingActionButton: FloatingActionButton(
-        onPressed: _incrementCounter,
-        tooltip: 'Increment',
-        child: const Icon(Icons.add),
-      ), // This trailing comma makes auto-formatting nicer for build methods.
     );
   }
 }

lib/movie/models/movie_model.dart

@@ -0,0 +1,61 @@
+class MovieResponseModel {
+  MovieResponseModel({
+    required this.page,
+    required this.results,
+    required this.totalPages,
+    required this.totalResults,
+  });
+
+  final int page;
+  final List<MovieModel> results;
+  final int totalPages;
+  final int totalResults;
+
+  factory MovieResponseModel.fromMap(Map<String, dynamic> json) =>
+      MovieResponseModel(
+        page: json["page"],
+        results: List<MovieModel>.from(
+            json["results"].map((x) => MovieModel.fromMap(x))),
+        totalPages: json["total_pages"],
+        totalResults: json["total_results"],
+      );
+}
+
+class MovieModel {
+  MovieModel({
+    this.backdropPath,
+    required this.id,
+    required this.originalTitle,
+    required this.overview,
+    required this.popularity,
+    this.posterPath,
+    required this.releaseDate,
+    required this.title,
+    required this.voteAverage,
+    required this.voteCount,
+  });
+
+  final String? backdropPath;
+  final int id;
+  final String originalTitle;
+  final String overview;
+  final double popularity;
+  final String? posterPath;
+  final DateTime releaseDate;
+  final String title;
+  final double voteAverage;
+  final int voteCount;
+
+  factory MovieModel.fromMap(Map<String, dynamic> json) => MovieModel(
+        backdropPath: json["backdrop_path"] ?? '',
+        id: json["id"],
+        originalTitle: json["original_title"],
+        overview: json["overview"],
+        popularity: json["popularity"].toDouble(),
+        posterPath: json["poster_path"] ?? '',
+        releaseDate: DateTime.parse(json["release_date"]),
+        title: json["title"],
+        voteAverage: json["vote_average"].toDouble(),
+        voteCount: json["vote_count"],
+      );
+}

lib/movie/pages/movie_page.dart

@@ -0,0 +1,46 @@
+import 'package:flutter/material.dart';
+import 'package:provider/provider.dart';
+import 'package:yt_flutter_movie_db/movie/providers/movie_get_discover_provider.dart';
+
+class MoviePage extends StatelessWidget {
+  const MoviePage({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    WidgetsBinding.instance.addPostFrameCallback((_) {
+      context.read<MovieGetDiscoverProvider>().getDicover(context);
+    });
+
+    return Scaffold(
+      appBar: AppBar(
+        title: const Text('Movie DB'),
+      ),
+      body: Consumer<MovieGetDiscoverProvider>(
+        builder: (_, provider, __) {
+          if (provider.isLoading) {
+            return const Center(
+              child: CircularProgressIndicator(),
+            );
+          }
+
+          if (provider.movies.isNotEmpty) {
+            return ListView.builder(
+              itemBuilder: (context, index) {
+                final movie = provider.movies[index];
+
+                return ListTile(
+                  title: Text(movie.title),
+                  subtitle: Text(movie.overview),
+                );
+              },
+            );
+          }
+
+          return const Center(
+            child: Text('Not Found Discover Movies'),
+          );
+        },
+      ),
+    );
+  }
+}

lib/movie/providers/movie_get_discover_provider.dart

@@ -0,0 +1,41 @@
+import 'package:flutter/material.dart';
+import 'package:yt_flutter_movie_db/movie/models/movie_model.dart';
+import 'package:yt_flutter_movie_db/movie/repostories/movie_repository.dart';
+
+class MovieGetDiscoverProvider with ChangeNotifier {
+  final MovieRepository _movieRepository;
+
+  MovieGetDiscoverProvider(this._movieRepository);
+
+  bool _isLoading = false;
+  bool get isLoading => _isLoading;
+
+  final List<MovieModel> _movies = [];
+  List<MovieModel> get movies => _movies;
+
+  void getDicover(BuildContext context) async {
+    _isLoading = true;
+    notifyListeners();
+
+    final result = await _movieRepository.getDiscover();
+
+    result.fold(
+      (errorMessage) {
+        ScaffoldMessenger.of(context).showSnackBar(SnackBar(
+          content: Text(errorMessage),
+        ));
+
+        _isLoading = false;
+        notifyListeners();
+        return;
+      },
+      (response) {
+        _movies.clear();
+        _movies.addAll(response.results);
+        _isLoading = false;
+        notifyListeners();
+        return null;
+      },
+    );
+  }
+}

lib/movie/repostories/movie_repository.dart

@@ -0,0 +1,6 @@
+import 'package:dartz/dartz.dart';
+import 'package:yt_flutter_movie_db/movie/models/movie_model.dart';
+
+abstract class MovieRepository {
+  Future<Either<String, MovieResponseModel>> getDiscover({int page = 1});
+}

lib/movie/repostories/movie_repository_impl.dart

@@ -0,0 +1,33 @@
+import 'package:dartz/dartz.dart';
+import 'package:dio/dio.dart';
+import 'package:yt_flutter_movie_db/movie/models/movie_model.dart';
+import 'package:yt_flutter_movie_db/movie/repostories/movie_repository.dart';
+
+class MovieRepositoryImpl implements MovieRepository {
+  final Dio _dio;
+
+  MovieRepositoryImpl(this._dio);
+
+  @override
+  Future<Either<String, MovieResponseModel>> getDiscover({int page = 1}) async {
+    try {
+      final result = await _dio.get(
+        '/discover/movie',
+        queryParameters: {'page': page},
+      );
+
+      if (result.statusCode == 200 && result.data != null) {
+        final model = MovieResponseModel.fromMap(result.data);
+        return Right(model);
+      }
+
+      return const Left('Error get discover movies');
+    } on DioError catch (e) {
+      if (e.response != null) {
+        return Left(e.response.toString());
+      }
+
+      return const Left('Another error on get discover movies');
+    }
+  }
+}

pubspec.lock

@@ -78,6 +78,13 @@ packages:
       url: "https://pub.dartlang.org"
     source: hosted
     version: "1.0.5"
+  dartz:
+    dependency: "direct main"
+    description:
+      name: dartz
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.10.1"
   dio:
     dependency: "direct main"
     description:

pubspec.yaml

@@ -16,6 +16,7 @@ dependencies:
   flutter_native_splash: ^2.2.14
   dio: ^4.0.6
   provider: ^6.0.4
+  dartz: ^0.10.1
 
 dev_dependencies:
   flutter_test: