Aula 02 | DartWeek 4ª Edição 🔥

lib/application/bindings/application_bindings.dart

@@ -0,0 +1,22 @@
+import 'package:get/get.dart';
+
+import 'package:app_filmes/repositories/login/login_repository_impl.dart';
+import 'package:app_filmes/repositories/login/login_repository.dart';
+import 'package:app_filmes/services/login/login_service.dart';
+import 'package:app_filmes/services/login/login_service_impl.dart';
+
+class ApplicationBindings implements Bindings {
+  @override
+  void dependencies() {
+    Get.lazyPut<LoginRepository>(
+      () => LoginRepositoryImpl(),
+      fenix: true,
+    );
+    Get.lazyPut<LoginService>(
+      () => LoginServiceImpl(
+        loginRepository: Get.find(),
+      ),
+      fenix: true,
+    );
+  }
+}

lib/application/ui/loader/loader_mixin.dart

@@ -0,0 +1,23 @@
+import 'package:flutter/material.dart';
+
+import 'package:get/get.dart';
+
+mixin LoaderMixin on GetxController {
+  void loaderListener(RxBool loaderRx) {
+    ever<bool>(
+      loaderRx,
+      (loading) async {
+        if (loading) {
+          await Get.dialog(
+            const Center(
+              child: CircularProgressIndicator(),
+            ),
+            barrierDismissible: false,
+          );
+        } else {
+          Get.back();
+        }
+      },
+    );
+  }
+}

lib/application/ui/messages/messages_mixin.dart

@@ -0,0 +1,58 @@
+import 'package:flutter/material.dart';
+
+import 'package:get/get.dart';
+
+mixin MessagesMixin on GetxController {
+  void messageListener(Rxn<MessageModel> message) {
+    ever<MessageModel?>(
+      message,
+      (model) {
+        if (model != null) {
+          Get.snackbar(
+            model.title,
+            model.message,
+            backgroundColor: model.type.color(), 
+          );
+        }
+      },
+    );
+  }
+}
+
+class MessageModel {
+  final String title;
+  final String message;
+  final MessageType type;
+
+  MessageModel({
+    required this.title,
+    required this.message,
+    required this.type,
+  });
+
+  MessageModel.error({
+    required this.title,
+    required this.message,
+  }) : type = MessageType.error;
+
+  MessageModel.info({
+    required this.title,
+    required this.message,
+  }) : type = MessageType.info;
+}
+
+enum MessageType {
+  error,
+  info,
+}
+
+extension MessageTypeExtension on MessageType {
+  Color color() { 
+    switch (this) {
+      case MessageType.error:
+        return Colors.red[600] ?? Colors.red;
+      case MessageType.info:
+        return Colors.blue[200] ?? Colors.blue;
+    }
+  }
+}

lib/main.dart

@@ -4,6 +4,8 @@ import 'package:firebase_core/firebase_core.dart';
 import 'package:firebase_remote_config/firebase_remote_config.dart';
 import 'package:get/get.dart';
 
+import 'application/bindings/application_bindings.dart';
+import 'modules/login/login_module.dart';
 import 'modules/splash/splash_module.dart';
 
 Future<void> main() async {
@@ -26,8 +28,10 @@ class MyApp extends StatelessWidget {
       theme: ThemeData(
         primarySwatch: Colors.blue,
       ),
+      initialBinding: ApplicationBindings(),
       getPages: [
         ...SplashModule().routers,
+        ...LoginModule().routers,
       ],
     );
   }

lib/modules/login/login_bindings.dart

@@ -0,0 +1,14 @@
+import 'package:get/get.dart';
+
+import 'login_controller.dart';
+
+class LoginBindings implements Bindings {
+  @override
+  void dependencies() {
+    Get.lazyPut(
+      () => LoginController(
+        loginService: Get.find(),
+      ),
+    );
+  }
+}

lib/modules/login/login_controller.dart

@@ -0,0 +1,44 @@
+import 'package:get/get.dart';
+
+import 'package:app_filmes/services/login/login_service.dart';
+import 'package:app_filmes/application/ui/loader/loader_mixin.dart';
+import 'package:app_filmes/application/ui/messages/messages_mixin.dart';
+
+class LoginController extends GetxController with LoaderMixin, MessagesMixin {
+  final LoginService _loginService;
+  final loading = false.obs;
+  final message = Rxn<MessageModel>();
+
+  LoginController({
+    required LoginService loginService,
+  }) : _loginService = loginService;
+
+  @override
+  void onInit() {
+    super.onInit();
+    loaderListener(loading);
+    messageListener(message);
+  }
+
+  Future<void> login() async {
+    try {
+      loading(true);
+      await _loginService.login();
+      loading(false);
+      message(
+        MessageModel.info(
+          title: 'Success',
+          message: 'Login with Success',
+        ),
+      );
+    } catch (e, s) {
+      print(e);
+      print(s);
+      loading(false);
+      MessageModel.error(
+        title: 'Error',
+        message: 'Login with Error',
+      );
+    }
+  }
+}

lib/modules/login/login_module.dart

@@ -0,0 +1,16 @@
+import 'package:get/get.dart';
+
+import 'package:app_filmes/application/modules/module.dart';
+import 'login_bindings.dart';
+import 'login_page.dart';
+
+class LoginModule implements Module {
+  @override
+  List<GetPage> routers = [
+    GetPage(
+      name: '/login',
+      page: () => const LoginPage(),
+      binding: LoginBindings(),
+    )
+  ];
+}

lib/modules/login/login_page.dart

@@ -0,0 +1,49 @@
+import 'package:flutter/material.dart';
+
+import 'package:flutter_signin_button/flutter_signin_button.dart';
+import 'package:get/get.dart';
+
+import 'login_controller.dart';
+
+class LoginPage extends GetView<LoginController> {
+  const LoginPage({Key? key}) : super(key: key);
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      body: Stack(
+        alignment: Alignment.topCenter,
+        children: [
+          Image.asset(
+            'assets/images/background.png',
+            width: Get.width,
+            height: Get.height,
+            fit: BoxFit.cover,
+          ),
+          Container(color: Colors.black45),
+          Padding(
+            padding: const EdgeInsets.only(top: 80),
+            child: Column(
+              children: [
+                Image.asset('assets/images/logo.png'),
+                const SizedBox(height: 50),
+                SizedBox(
+                  width: Get.width * .9,
+                  height: 42,
+                  child: SignInButton(
+                    Buttons.Google,
+                    shape: RoundedRectangleBorder(
+                      borderRadius: BorderRadius.circular(100),
+                    ),
+                    text: 'Entrar com o Google',
+                    onPressed: () => controller.login(),
+                  ),
+                ),
+              ],
+            ),
+          ),
+        ],
+      ),
+    );
+  }
+}

lib/modules/splash/splash_bindings.dart

@@ -0,0 +1,12 @@
+import 'package:get/get.dart';
+
+import 'splash_controller.dart';
+
+class SplashBindings implements Bindings {
+  @override
+  void dependencies() {
+    Get.put(
+      SplashController(),
+    );
+  }
+}

lib/modules/splash/splash_controller.dart

@@ -1,3 +1,9 @@
 import 'package:get/get.dart';
 
-class SplashController extends GetxController {}
+class SplashController extends GetxController {
+  @override
+  void onReady() {
+    super.onReady();
+    Get.offAllNamed('/login');
+  }
+}

lib/modules/splash/splash_module.dart

@@ -1,6 +1,7 @@
 import 'package:get/get.dart';
 
 import 'package:app_filmes/application/modules/module.dart';
+import 'splash_bindings.dart';
 import 'splash_page.dart';
 
 class SplashModule implements Module {
@@ -9,6 +10,7 @@ class SplashModule implements Module {
     GetPage(
       name: '/',
       page: () => const SplashPage(),
+      binding: SplashBindings(),
     ),
   ];
 }

lib/repositories/login/login_repository.dart

@@ -0,0 +1,5 @@
+import 'package:firebase_auth/firebase_auth.dart';
+
+abstract class LoginRepository {
+  Future<UserCredential> login();
+}

lib/repositories/login/login_repository_impl.dart

@@ -0,0 +1,22 @@
+import 'package:firebase_auth/firebase_auth.dart';
+import 'package:google_sign_in/google_sign_in.dart';
+
+import 'login_repository.dart';
+
+class LoginRepositoryImpl implements LoginRepository {
+  @override
+  // ignore: override_on_non_overriding_member
+  Future<UserCredential> login() async {
+    final googleUser = await GoogleSignIn().signIn();
+    final googleAuth = await googleUser?.authentication;
+
+    if (googleAuth != null) {
+      final credential = GoogleAuthProvider.credential(
+        accessToken: googleAuth.accessToken,
+        idToken: googleAuth.idToken,
+      );
+      return FirebaseAuth.instance.signInWithCredential(credential);
+    }
+    throw Exception('Erro ao realizar login com Google');
+  }
+}

lib/services/login/login_service.dart

@@ -0,0 +1,5 @@
+import 'package:firebase_auth/firebase_auth.dart';
+
+abstract class LoginService {
+  Future<UserCredential> login();
+}

lib/services/login/login_service_impl.dart

@@ -0,0 +1,15 @@
+import 'package:firebase_auth/firebase_auth.dart';
+
+import 'package:app_filmes/repositories/login/login_repository.dart';
+import 'login_service.dart';
+
+class LoginServiceImpl implements LoginService {
+  final LoginRepository _loginRepository;
+
+  LoginServiceImpl({
+    required LoginRepository loginRepository,
+  }) : _loginRepository = loginRepository;
+
+  @override
+  Future<UserCredential> login() => _loginRepository.login();
+}