feat: add auth module with supabase

example/lib/get/core_module.dart

@@ -3,6 +3,7 @@ import 'package:example/shared/app_routes.dart';
 import 'package:get/get.dart';
 
 import 'extensions/get_module.dart';
+import 'modules/auth_module.dart';
 import 'modules/home_module.dart';
 import 'modules/join_module.dart';
 import 'modules/new_trivia_module.dart';
@@ -20,6 +21,9 @@ class CoreModule extends GetModule {
             newTriviaRoute: AppRoutes.newTrivia,
           ),
         ),
+        GetModuleRoute(
+          module: AuthModule(),
+        ),
         GetModuleRoute(
           module: NewTriviaModule(),
         ),

example/lib/get/get_main.dart

@@ -5,6 +5,7 @@ import '../bootstrap.dart';
 import '../get/core_module.dart';
 import '../shared/app_routes.dart';
 import '../shared/not_found_page.dart';
+import 'modules/auth_module.dart';
 import 'overrides/app_navigator.dart';
 import 'overrides/feedbacks_executor.dart';
 
@@ -14,11 +15,9 @@ Future main() async {
     rootAppRoute: '/',
     navigator: GetAppNavigator(),
     feedbacksExecutor: GetFeedbacksExecutor(),
-    /*registries: [
-      ProfileModuleRegistries(
-        () => Get.find<IProfileRepository>(),
-      ),
-    ],*/
+    initialRegistries: [
+      AuthModuleBuzzRegistry(),
+    ],
   );
 
   return bootstrap(

example/lib/get/modules/auth_module.dart

@@ -0,0 +1,31 @@
+import 'package:buzz/buzz.dart';
+import 'package:get/get.dart';
+
+import '../../shared/modules/auth/login.dart';
+import '../extensions/get_module.dart';
+
+class AuthModuleBuzzRegistry extends BuzzRegistry {
+  @override
+  void register(BuzzBase buzz) {
+    buzz.on<LoginCommand>().listen(
+          (event) => LoginCommandHandler().handle(event),
+        );
+  }
+}
+
+class AuthModule extends GetModule {
+  @override
+  List<GetRoute> get routes => [
+        LoginRoute(),
+      ];
+}
+
+class LoginRoute extends GetRoute {
+  LoginRoute();
+
+  @override
+  GetPage get asGetPage => GetPage(
+        name: LoginPage.routeName,
+        page: () => const LoginPage(),
+      );
+}

example/lib/shared/app_routes.dart

@@ -1,3 +1,5 @@
+import 'package:example/shared/modules/auth/login.dart';
+
 import 'modules/home/page.dart';
 import 'modules/join/page.dart';
 import 'modules/new_trivia/page.dart';
@@ -6,9 +8,9 @@ import 'modules/trivia/play/page.dart';
 import 'modules/trivia/scoreboard/page.dart';
 
 class AppRoutes {
-  // Home can display Authentication info
-  // Authentication depends on User information and Sessions
   static const root = HomePage.routeName;
+  static const login = LoginPage.routeName;
+
   static const newTrivia = NewTriviaPage.routeName;
   static const trivia = TriviaPage.routeName;
   static const triviaPlay = TriviaPlayPage.routeName;

example/lib/shared/modules/auth/login.dart

@@ -0,0 +1,144 @@
+import 'dart:async';
+
+import 'package:buzz/buzz.dart';
+import 'package:core/core.dart';
+import 'package:flutter/material.dart';
+import 'package:get/get.dart';
+import 'package:supabase_flutter/supabase_flutter.dart';
+
+class LoginPage extends StatelessWidget {
+  static const String routeName = '/login';
+  static const String pageName = 'LoginPage';
+
+  const LoginPage({
+    Key? key,
+  }) : super(key: key);
+
+  @override
+  Widget build(BuildContext context) {
+    return const BasePage(
+      name: pageName,
+      body: LoginView(),
+    );
+  }
+}
+
+class LoginView extends StatelessWidget {
+  const LoginView({
+    Key? key,
+  }) : super(key: key);
+
+  @override
+  Widget build(BuildContext context) {
+    final controller = Get.put(LoginViewController());
+
+    return Obx(() {
+      return Column(
+        children: [
+          Padding(
+            padding: const EdgeInsets.all(16),
+            child: controller.isLoading()
+                ? const CircularProgressIndicator()
+                : Text(controller.loginResultString),
+          ),
+          Padding(
+            padding: const EdgeInsets.symmetric(horizontal: 15),
+            child: TextField(
+              controller: controller.emailTextController,
+              decoration: const InputDecoration(
+                border: OutlineInputBorder(),
+                labelText: 'Email',
+                hintText: 'Enter valid email id as abc@gmail.com',
+              ),
+            ),
+          ),
+          Padding(
+            padding: const EdgeInsets.all(16),
+            child: MainActionWidget(
+              action: MainAction(
+                label: 'Sign In',
+                onPressed: () => controller.onSignInTap(),
+              ),
+            ),
+          ),
+        ],
+      );
+    });
+  }
+}
+
+class LoginViewController extends GetxController {
+  RxBool isLoading = false.obs;
+  final emailTextController = TextEditingController();
+  StreamSubscription? subscription;
+  Rx<LoginCommandResult?> loginResult = Rxn<LoginCommandResult>();
+
+  String get loginResultString {
+    final result = loginResult();
+    if (result != null) {
+      return 'user: ${result.user} – error: ${result.errorMessage}';
+    }
+
+    return 'No login result yet';
+  }
+
+  @override
+  void onInit() {
+    subscription = Buzz.on<LoginCommandResult>().listen(_onLoginCommandResult);
+    super.onInit();
+  }
+
+  void onSignInTap() {
+    final email = emailTextController.text;
+    isLoading(true);
+    Buzz.fire(LoginCommand(email: email));
+  }
+
+  @override
+  void onClose() {
+    emailTextController.dispose();
+    subscription?.cancel();
+    subscription = null;
+    super.onClose();
+  }
+
+  void _onLoginCommandResult(LoginCommandResult result) {
+    isLoading(false);
+    loginResult(result);
+  }
+}
+
+class LoginCommand extends Command {
+  LoginCommand({
+    required this.email,
+  });
+  final String email;
+}
+
+class LoginCommandHandler extends CommandHandler<LoginCommand> {
+  @override
+  void handle(LoginCommand event) async {
+    final response = await Supabase.instance.client.auth.signIn(
+      email: event.email,
+    );
+
+    final user = response.data?.user;
+    final error = response.error;
+
+    if (error != null) {
+      Buzz.fire(LoginCommandResult.failure(error.message));
+      return;
+    }
+
+    //TODO: Avoid leaking data models
+    Buzz.fire(LoginCommandResult.success(user));
+  }
+}
+
+class LoginCommandResult {
+  final User? user;
+  final String? errorMessage;
+
+  LoginCommandResult.success(this.user) : errorMessage = null;
+  LoginCommandResult.failure(this.errorMessage) : user = null;
+}

example/lib/shared/modules/join/join_view.dart

@@ -1,6 +1,5 @@
 import 'package:buzz/buzz.dart';
 import 'package:core/core.dart';
-import 'package:example/shared/components/labeled_section.dart';
 import 'package:example/shared/modules/trivia/components/trivia_data_view.dart';
 import 'package:example/shared/modules/trivia/page.dart';
 import 'package:flutter/material.dart';

example/lib/shared/modules/trivia/components/copy_join_link_view.dart

@@ -1,5 +1,4 @@
 import 'package:core/core.dart';
-import 'package:example/shared/components/labeled_section.dart';
 import 'package:flutter/material.dart';
 import 'package:universal_html/html.dart' show window;
 

example/lib/shared/modules/trivia/components/trivia_data_view.dart

@@ -1,4 +1,4 @@
-import 'package:example/shared/components/labeled_section.dart';
+import 'package:core/components/labeled_section.dart';
 import 'package:flutter/material.dart';
 
 class TriviaDataView extends StatelessWidget {

example/lib/shared/modules/trivia/finished/trivia_finished_status_view.dart

@@ -1,8 +1,6 @@
 import 'package:core/core.dart';
 import 'package:flutter/material.dart';
 
-import '../../../components/labeled_section.dart';
-
 class TriviaFinishedStatusView extends StatelessWidget {
   const TriviaFinishedStatusView({
     Key? key,

example/lib/shared/modules/trivia/initial/trivia_initial_view.dart

@@ -1,6 +1,6 @@
+import 'package:core/core.dart';
 import 'package:flutter/material.dart';
 
-import '../../../components/labeled_section.dart';
 import '../components/copy_join_link_view.dart';
 import '../components/trivia_data_view.dart';
 

example/lib/shared/modules/trivia/started/trivia_started_view.dart

@@ -1,5 +1,4 @@
 import 'package:core/core.dart';
-import 'package:example/shared/components/labeled_section.dart';
 import 'package:flutter/material.dart';
 
 class TriviaStartedStatusView extends StatelessWidget {

example/packages/core/lib/core.dart

@@ -1,6 +1,7 @@
 library core;
 
+export 'components/labeled_section.dart';
+export 'components/named_page.dart';
 export 'src/in_memory_store.dart';
 export 'src/json_reader.dart';
 export 'src/managed_stream_builder.dart';
-export 'src/named_page.dart';