[mob][cast] Return name and castDevice as record

mobile/lib/service_locator.dart

@@ -4,22 +4,6 @@ import "package:ente_cast_normal/ente_cast_normal.dart";
 import "package:ente_feature_flag/ente_feature_flag.dart";
 import "package:shared_preferences/shared_preferences.dart";
 
-CastService? _castService;
-CastService get castService {
-  _castService ??= CastServiceImpl();
-  return _castService!;
-}
-
-FlagService? _flagService;
-
-FlagService get flagService {
-  _flagService ??= FlagService(
-    ServiceLocator.instance.prefs,
-    ServiceLocator.instance.enteDio,
-  );
-  return _flagService!;
-}
-
 class ServiceLocator {
   late final SharedPreferences prefs;
   late final Dio enteDio;
@@ -34,3 +18,19 @@ class ServiceLocator {
     this.enteDio = enteDio;
   }
 }
+
+FlagService? _flagService;
+
+FlagService get flagService {
+  _flagService ??= FlagService(
+    ServiceLocator.instance.prefs,
+    ServiceLocator.instance.enteDio,
+  );
+  return _flagService!;
+}
+
+CastService? _castService;
+CastService get castService {
+  _castService ??= CastServiceImpl();
+  return _castService!;
+}

mobile/lib/ui/viewer/gallery/gallery_app_bar_widget.dart

@@ -646,7 +646,7 @@ class _GalleryAppBarWidgetState extends State<GalleryAppBarWidget> {
   }
 
   Widget castWidget(BuildContext context) {
-    return FutureBuilder<List<Object>>(
+    return FutureBuilder<List<(String, Object)>>(
       future: castService.searchDevices(),
       builder: (context, snapshot) {
         if (snapshot.hasError) {
@@ -666,7 +666,9 @@ class _GalleryAppBarWidgetState extends State<GalleryAppBarWidget> {
         }
 
         return Column(
-          children: snapshot.data!.map((device) {
+          children: snapshot.data!.map((result) {
+            final device = result.$2;
+            final name = result.$1;
             return GestureDetector(
               onTap: () async {
                 try {
@@ -675,7 +677,7 @@ class _GalleryAppBarWidgetState extends State<GalleryAppBarWidget> {
                   showGenericErrorDialog(context: context, error: e).ignore();
                 }
               },
-              child: Text(device.toString()),
+              child: Text(name),
             );
           }).toList(),
         );

mobile/plugins/ente_cast/lib/src/service.dart

@@ -2,6 +2,6 @@ import "package:flutter/widgets.dart";
 
 abstract class CastService {
   bool get isSupported;
-  Future<List<Object>> searchDevices();
+  Future<List<(String, Object)>> searchDevices();
   Future<void> connectDevice(BuildContext context, Object device);
 }

mobile/plugins/ente_cast_none/lib/src/service.dart

@@ -8,10 +8,11 @@ class CastServiceImpl extends CastService {
   }
 
   @override
-  Future<List<Object>> searchDevices() {
-    throw UnimplementedError();
-  }
+  bool get isSupported => false;
 
   @override
-  bool get isSupported => false;
+  Future<List<(String, Object)>> searchDevices() {
+    // TODO: implement searchDevices
+    throw UnimplementedError();
+  }
 }

mobile/plugins/ente_cast_normal/lib/src/service.dart

@@ -27,9 +27,10 @@ class CastServiceImpl extends CastService {
   }
 
   @override
-  Future<List<Object>> searchDevices() {
-    // TODO: implement searchDevices
-    throw UnimplementedError();
+  Future<List<(String, Object)>> searchDevices() {
+    return CastDiscoveryService().search().then((devices) {
+      return devices.map((device) => (device.name, device)).toList();
+    });
   }
 
   @override