Add connection info footer

lib/singbox/service/ffi_singbox_service.dart

@@ -318,6 +318,12 @@ class FFISingboxService with InfraLogger implements SingboxService {
     return _outboundsStream = outboundsStream;
   }
 
+  @override
+  Stream<List<SingboxOutboundGroup>> watchActiveOutbounds() {
+    // TODO: implement watchActiveOutbounds
+    throw UnimplementedError();
+  }
+
   @override
   TaskEither<String, Unit> selectOutbound(String groupTag, String outboundTag) {
     return TaskEither(

lib/singbox/service/platform_singbox_service.dart

@@ -182,6 +182,23 @@ class PlatformSingboxService with InfraLogger implements SingboxService {
     );
   }
 
+  @override
+  Stream<List<SingboxOutboundGroup>> watchActiveOutbounds() {
+    const channel = EventChannel("com.hiddify.app/active-groups");
+    loggy.debug("watching active outbounds");
+    return channel.receiveBroadcastStream().map(
+      (event) {
+        if (event case String _) {
+          return (jsonDecode(event) as List).map((e) {
+            return SingboxOutboundGroup.fromJson(e as Map<String, dynamic>);
+          }).toList();
+        }
+        loggy.error("[active group client] unexpected type, msg: $event");
+        throw "invalid type";
+      },
+    );
+  }
+
   @override
   Stream<SingboxStatus> watchStatus() => _status;
 

lib/singbox/service/singbox_service.dart

@@ -56,6 +56,8 @@ abstract interface class SingboxService {
 
   Stream<List<SingboxOutboundGroup>> watchOutbounds();
 
+  Stream<List<SingboxOutboundGroup>> watchActiveOutbounds();
+
   TaskEither<String, Unit> selectOutbound(String groupTag, String outboundTag);
 
   TaskEither<String, Unit> urlTest(String groupTag);