Add user ID to the subject when pressing email support button (#1777)

In case the `userId` is available, it will be appended to the subject.

Part of #1069

app/lib/main/auth_app.dart

@@ -29,6 +29,7 @@ import 'package:sharezone/support/support_page.dart';
 import 'package:sharezone/legal/privacy_policy/privacy_policy_page.dart';
 import 'package:sharezone/support/support_page_controller.dart';
 import 'package:sharezone/util/cache/streaming_key_value_store.dart';
+import 'package:url_launcher_extended/url_launcher_extended.dart';
 
 class AuthApp extends StatefulWidget {
   final Analytics analytics;
@@ -69,6 +70,7 @@ class _AuthAppState extends State<AuthApp> {
             hasPlusSupportUnlockedStream: Stream.value(false),
             isUserInGroupOnboardingStream: Stream.value(false),
             typeOfUserStream: Stream.value(null),
+            urlLauncher: UrlLauncherExtended(),
           ),
         ),
       ],

app/lib/main/sharezone_bloc_providers.dart

@@ -133,6 +133,7 @@ import 'package:sharezone/util/platform_information_manager/flutter_platform_inf
 import 'package:sharezone/util/platform_information_manager/get_platform_information_retreiver.dart';
 import 'package:sharezone_common/references.dart';
 import 'package:stripe_checkout_session/stripe_checkout_session.dart';
+import 'package:url_launcher_extended/url_launcher_extended.dart';
 import 'package:user/user.dart';
 
 import '../holidays/holiday_bloc.dart';
@@ -378,6 +379,7 @@ class _SharezoneBlocProvidersState extends State<SharezoneBlocProviders> {
               .hasFeatureUnlockedStream(SharezonePlusFeature.plusSupport),
           isUserInGroupOnboardingStream: signUpBloc.signedUp,
           typeOfUserStream: typeOfUserStream,
+          urlLauncher: UrlLauncherExtended(),
         ),
       ),
       StreamProvider<TypeOfUser?>.value(

app/lib/support/support_page.dart

@@ -14,10 +14,9 @@ import 'package:provider/provider.dart';
 import 'package:sharezone/navigation/logic/navigation_bloc.dart';
 import 'package:sharezone/navigation/models/navigation_item.dart';
 import 'package:sharezone/support/support_page_controller.dart';
-import 'package:sharezone_utils/launch_link.dart';
 import 'package:sharezone/widgets/avatar_card.dart';
+import 'package:sharezone_utils/launch_link.dart';
 import 'package:sharezone_widgets/sharezone_widgets.dart';
-import 'package:url_launcher/url_launcher.dart';
 
 class SupportPage extends StatelessWidget {
   static const String tag = 'support-page';
@@ -232,17 +231,16 @@ class _FreeEmailTile extends StatelessWidget {
         semanticsLabel: 'E-Mail Icon',
       ),
       title: 'E-Mail',
-      subtitle: '[email protected]',
+      subtitle: freeSupportEmail,
       onPressed: () async {
-        final url = Uri.parse(Uri.encodeFull(
-            'mailto:[email protected]?subject=Ich brauche eure Hilfe! 😭'));
         try {
-          await launchUrl(url);
+          final controller = context.read<SupportPageController>();
+          await controller.sendEmailToFreeSupport();
         } on Exception catch (_) {
           if (!context.mounted) return;
           showSnackSec(
             context: context,
-            text: 'E-Mail: [email protected]',
+            text: 'E-Mail: $freeSupportEmail',
           );
         }
       },
@@ -256,7 +254,6 @@ class _PlusEmailTile extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
-    const emailAddress = '[email protected]';
     return _SupportCard(
       icon: PlatformSvg.asset(
         'assets/icons/email.svg',
@@ -266,15 +263,14 @@ class _PlusEmailTile extends StatelessWidget {
       title: 'E-Mail',
       subtitle: 'Erhalte eine Rückmeldung innerhalb von wenigen Stunden.',
       onPressed: () async {
-        final url = Uri.parse(Uri.encodeFull(
-            'mailto:$emailAddress?subject=[💎 Sharezone Plus Support] Meine Anfrage'));
         try {
-          await launchUrl(url);
+          final controller = context.read<SupportPageController>();
+          await controller.sendEmailToPlusSupport();
         } on Exception catch (_) {
           if (!context.mounted) return;
           showSnackSec(
             context: context,
-            text: 'E-Mail: $emailAddress',
+            text: 'E-Mail: $plusSupportEmail',
           );
         }
       },

app/lib/support/support_page_controller.dart

@@ -10,8 +10,12 @@ import 'dart:async';
 
 import 'package:common_domain_models/common_domain_models.dart';
 import 'package:flutter/material.dart';
+import 'package:url_launcher_extended/url_launcher_extended.dart';
 import 'package:user/user.dart';
 
+const freeSupportEmail = '[email protected]';
+const plusSupportEmail = '[email protected]';
+
 class SupportPageController extends ChangeNotifier {
   bool get hasPlusSupportUnlocked =>
       _hasSharezonePlus && _typeOfUser == TypeOfUser.student;
@@ -30,6 +34,7 @@ class SupportPageController extends ChangeNotifier {
   late StreamSubscription<bool> _hasPlusSupportUnlockedSubscription;
   late StreamSubscription<bool> _isUserInGroupOnboardingSubscription;
   late StreamSubscription<TypeOfUser?> _typeOfUserSubscription;
+  final UrlLauncherExtended _urlLauncher;
 
   SupportPageController({
     required Stream<UserId?> userIdStream,
@@ -38,7 +43,8 @@ class SupportPageController extends ChangeNotifier {
     required Stream<bool> hasPlusSupportUnlockedStream,
     required Stream<bool> isUserInGroupOnboardingStream,
     required Stream<TypeOfUser?> typeOfUserStream,
-  }) {
+    required UrlLauncherExtended urlLauncher,
+  }) : _urlLauncher = urlLauncher {
     _userIdSubscription = userIdStream.listen((userId) {
       this.userId = userId;
       notifyListeners();
@@ -119,6 +125,34 @@ class SupportPageController extends ChangeNotifier {
     return url;
   }
 
+  Future<void> sendEmailToFreeSupport() async {
+    await _openEmailApp(
+      email: freeSupportEmail,
+      subject: 'Meine Anfrage',
+    );
+  }
+
+  Future<void> sendEmailToPlusSupport() async {
+    await _openEmailApp(
+      email: plusSupportEmail,
+      subject: '[💎 Plus Support] Meine Anfrage',
+    );
+  }
+
+  Future<void> _openEmailApp({
+    required String email,
+
+    /// The subject of the email.
+    ///
+    /// The user ID is appended to the subject if it's not `null`.
+    required String subject,
+  }) async {
+    if (userId != null) {
+      subject += ' [User-ID: $userId]';
+    }
+    await _urlLauncher.tryLaunchMailOrThrow(email, subject: subject);
+  }
+
   bool _isPrivateAppleEmail(String email) {
     return email.endsWith('@privaterelay.appleid.com') || email == '-';
   }

app/test/settings/support/support_page_controller_test.dart

@@ -8,11 +8,23 @@
 
 import 'package:common_domain_models/common_domain_models.dart';
 import 'package:flutter_test/flutter_test.dart';
+import 'package:mockito/annotations.dart';
+import 'package:mockito/mockito.dart';
 import 'package:sharezone/support/support_page_controller.dart';
+import 'package:url_launcher_extended/url_launcher_extended.dart';
 import 'package:user/user.dart';
 
+import 'support_page_controller_test.mocks.dart';
+
+@GenerateNiceMocks([MockSpec<UrlLauncherExtended>()])
 void main() {
   group(SupportPageController, () {
+    late MockUrlLauncherExtended urlLauncher;
+
+    setUp(() {
+      urlLauncher = MockUrlLauncherExtended();
+    });
+
     group('getVideoCallAppointmentsUnencodedUrlWithPrefills()', () {
       test('throws $UserNotAuthenticatedException when user Id is null',
           () async {
@@ -23,6 +35,7 @@ void main() {
           hasPlusSupportUnlockedStream: Stream.value(false),
           isUserInGroupOnboardingStream: Stream.value(false),
           typeOfUserStream: Stream.value(null),
+          urlLauncher: urlLauncher,
         );
 
         // Workaround to wait for stream subscription in constructor.
@@ -42,6 +55,7 @@ void main() {
           hasPlusSupportUnlockedStream: Stream.value(false),
           isUserInGroupOnboardingStream: Stream.value(false),
           typeOfUserStream: Stream.value(null),
+          urlLauncher: urlLauncher,
         );
 
         // Workaround to wait for stream subscription in constructor.
@@ -63,6 +77,7 @@ void main() {
           hasPlusSupportUnlockedStream: Stream.value(true),
           isUserInGroupOnboardingStream: Stream.value(false),
           typeOfUserStream: Stream.value(TypeOfUser.parent),
+          urlLauncher: urlLauncher,
         );
 
         // Workaround to wait for stream subscription in constructor.
@@ -82,6 +97,7 @@ void main() {
           hasPlusSupportUnlockedStream: Stream.value(true),
           isUserInGroupOnboardingStream: Stream.value(false),
           typeOfUserStream: Stream.value(TypeOfUser.teacher),
+          urlLauncher: urlLauncher,
         );
 
         // Workaround to wait for stream subscription in constructor.
@@ -101,6 +117,7 @@ void main() {
           hasPlusSupportUnlockedStream: Stream.value(false),
           isUserInGroupOnboardingStream: Stream.value(false),
           typeOfUserStream: Stream.value(TypeOfUser.teacher),
+          urlLauncher: urlLauncher,
         );
 
         // Workaround to wait for stream subscription in constructor.
@@ -120,6 +137,7 @@ void main() {
           hasPlusSupportUnlockedStream: Stream.value(true),
           isUserInGroupOnboardingStream: Stream.value(false),
           typeOfUserStream: Stream.value(TypeOfUser.student),
+          urlLauncher: urlLauncher,
         );
 
         // Workaround to wait for stream subscription in constructor.
@@ -131,5 +149,55 @@ void main() {
         );
       });
     });
+
+    group('open email app', () {
+      test('free user', () async {
+        final controller = SupportPageController(
+          userIdStream: Stream.value(const UserId('userId123')),
+          userNameStream: Stream.value('My Cool Name'),
+          userEmailStream: Stream.value('[email protected]'),
+          hasPlusSupportUnlockedStream: Stream.value(false),
+          isUserInGroupOnboardingStream: Stream.value(false),
+          typeOfUserStream: Stream.value(TypeOfUser.student),
+          urlLauncher: urlLauncher,
+        );
+
+        // Workaround to wait for stream subscription in constructor.
+        await Future.delayed(Duration.zero);
+
+        await controller.sendEmailToFreeSupport();
+
+        verify(
+          urlLauncher.tryLaunchMailOrThrow(
+            freeSupportEmail,
+            subject: "Meine Anfrage [User-ID: userId123]",
+          ),
+        );
+      });
+
+      test('plus user', () async {
+        final controller = SupportPageController(
+          userIdStream: Stream.value(const UserId('userId123')),
+          userNameStream: Stream.value('My Cool Name'),
+          userEmailStream: Stream.value('[email protected]'),
+          hasPlusSupportUnlockedStream: Stream.value(true),
+          isUserInGroupOnboardingStream: Stream.value(false),
+          typeOfUserStream: Stream.value(TypeOfUser.student),
+          urlLauncher: urlLauncher,
+        );
+
+        // Workaround to wait for stream subscription in constructor.
+        await Future.delayed(Duration.zero);
+
+        await controller.sendEmailToPlusSupport();
+
+        verify(
+          urlLauncher.tryLaunchMailOrThrow(
+            plusSupportEmail,
+            subject: "[💎 Plus Support] Meine Anfrage [User-ID: userId123]",
+          ),
+        );
+      });
+    });
   });
 }