only push featured game moves in TV broadcast

modules/game/src/main/Featured.scala

@@ -37,7 +37,7 @@ final class Featured(
         oneId = game.id.some
         rendererActor ? actorApi.RenderFeaturedJs(game) onSuccess {
           case html: Html =>
-            bus.publish(lila.hub.actorApi.game.ChangeFeatured(html), 'changeFeaturedGame)
+            bus.publish(lila.hub.actorApi.game.ChangeFeatured(game.id, html), 'changeFeaturedGame)
         }
         GameRepo setTv game.id
       }

modules/hub/src/main/actorApi.scala

@@ -95,7 +95,7 @@ case class Propagate(data: Atom, propagations: List[Propagation] = Nil) {
 }
 
 package game {
-case class ChangeFeatured(html: Html)
+case class ChangeFeatured(id: String, html: Html)
 case object Count
 }
 

modules/round/src/main/TvBroadcast.scala

@@ -17,17 +17,21 @@ private final class TvBroadcast extends Actor {
 
   private val (enumerator, channel) = Concurrent.broadcast[JsValue]
 
+  private var featuredId = none[String]
+
   def receive = {
 
     case TvBroadcast.GetEnumerator => sender ! enumerator
 
-    case ChangeFeatured(html) =>
+    case ChangeFeatured(id, html) =>
+      featuredId = id.some
       channel push makeMessage("featured", Json.obj("html" -> html.toString))
 
-    case move: MoveEvent => channel push makeMessage("fen", Json.obj(
-      "fen" -> move.fen,
-      "lm" -> move.move
-    ))
+    case move: MoveEvent if Some(move.gameId) == featuredId =>
+      channel push makeMessage("fen", Json.obj(
+        "fen" -> move.fen,
+        "lm" -> move.move
+      ))
   }
 }
 

modules/socket/src/main/SocketActor.scala

@@ -61,7 +61,7 @@ abstract class SocketActor[M <: SocketMember](uidTtl: Duration) extends Socket w
 
     // the actor instance must subscribe to 'changeFeaturedGame to receive this message
     // context.system.lilaBus.subscribe(self, 'changeFeaturedGame)
-    case ChangeFeatured(html)    => notifyFeatured(html)
+    case ChangeFeatured(_, html) => notifyFeatured(html)
   }
 
   def receive = receiveSpecific orElse receiveGeneric