feat(websocket)!: Implement WebSocket connection and event handling (#82)

Co-authored-by: LQ63 <lkhermann@web.de>
Reviewed-on: #82
Co-authored-by: Janis <janis.e.20@gmx.de>
Co-committed-by: Janis <janis.e.20@gmx.de>

build.sbt

@@ -1,12 +1,12 @@
 ThisBuild / scalaVersion := "3.5.1"
 
 lazy val commonSettings = Seq(
-  libraryDependencies += "org.scalactic" %% "scalactic" % "3.2.18",
+  libraryDependencies += "org.scalactic" %% "scalactic" % "3.2.19",
-  libraryDependencies += "org.scalatest" %% "scalatest" % "3.2.18" % "test",
+  libraryDependencies += "org.scalatest" %% "scalatest" % "3.2.19" % "test",
-  libraryDependencies += "io.github.mkpaz" % "atlantafx-base" % "2.0.1",
+  libraryDependencies += "io.github.mkpaz" % "atlantafx-base" % "2.1.0",
-  libraryDependencies += "org.scalafx" %% "scalafx" % "22.0.0-R33",
+  libraryDependencies += "org.scalafx" %% "scalafx" % "24.0.2-R36",
-  libraryDependencies += "org.scala-lang.modules" %% "scala-xml" % "2.3.0",
+  libraryDependencies += "org.scala-lang.modules" %% "scala-xml" % "2.4.0",
-  libraryDependencies += "org.playframework" %% "play-json" % "3.1.0-M1",
+  libraryDependencies += "org.playframework" %% "play-json" % "3.1.0-M9",
   libraryDependencies ++= {
     // Determine OS version of JavaFX binaries
     lazy val osName = System.getProperty("os.name") match {
@@ -38,8 +38,9 @@ lazy val knockoutwhistweb = project.in(file("knockoutwhistweb"))
     commonSettings,
     libraryDependencies += "org.scalatestplus.play" %% "scalatestplus-play" % "7.0.2" % Test,
     libraryDependencies += "de.mkammerer" % "argon2-jvm" % "2.12",
-    libraryDependencies += "com.auth0" % "java-jwt" % "4.3.0",
+    libraryDependencies += "com.auth0" % "java-jwt" % "4.5.0",
-    libraryDependencies += "com.github.ben-manes.caffeine" % "caffeine" % "3.2.2",
+    libraryDependencies += "com.github.ben-manes.caffeine" % "caffeine" % "3.2.3",
+    libraryDependencies += "tools.jackson.module" %% "jackson-module-scala" % "3.0.2",
     JsEngineKeys.engineType := JsEngineKeys.EngineType.Node
   )
 

knockoutwhistweb/app/assets/stylesheets/main.less

@@ -14,13 +14,18 @@
   --bs-border-color: rgba(0, 0, 0, 0.125) !important;
   --bs-heading-color: var(--color) !important;
 }
+
 @background-color: var(--background-color);
 @highlightcolor: var(--highlightscolor);
 @background-image: var(--background-image);
 @color: var(--color);
 @keyframes slideIn {
-  0% { transform: translateX(-100vw); }
+  0% {
-  100% { transform: translateX(0); }
+    transform: translateX(-100vw);
+  }
+  100% {
+    transform: translateX(0);
+  }
 }
 
 .game-field-background {
@@ -31,6 +36,7 @@
   margin: 0 auto;
   min-height: 100vh;
 }
+
 .lobby-background {
   background-color: @background-color;
   width: 100%;
@@ -45,6 +51,7 @@
   float: none;
   margin-right: 0;
 }
+
 .handcard :hover {
   box-shadow: 3px 3px 3px @highlightcolor;
 }
@@ -105,11 +112,13 @@ body {
   justify-content: flex-start;
   align-items: center;
   text-align: center;
+
   h1 {
     animation: slideIn 0.5s ease-out forwards;
     animation-fill-mode: backwards;
   }
 }
+
 #textanimation {
   animation: slideIn 0.5s ease-out forwards;
   animation-fill-mode: backwards;
@@ -121,6 +130,7 @@ body {
   font-size: 40px;
   font-family: Arial, serif;
 }
+
 #ingame {
   display: flex;
   flex-direction: column;
@@ -128,6 +138,7 @@ body {
   justify-content: flex-end;
   height: 100%;
 }
+
 #ingame a, #ingame h1, #ingame p {
   color: @color;
   font-size: 40px;
@@ -138,13 +149,34 @@ body {
   div {
     animation: slideIn 0.5s ease-out forwards;
     animation-fill-mode: backwards;
-    &:nth-child(1) { animation-delay: 0.5s; }
+
-    &:nth-child(2) { animation-delay: 1s; }
+    &:nth-child(1) {
-    &:nth-child(3) { animation-delay: 1.5s; }
+      animation-delay: 0.5s;
-    &:nth-child(4) { animation-delay: 2s; }
+    }
-    &:nth-child(5) { animation-delay: 2.5s; }
+
-    &:nth-child(6) { animation-delay: 3s; }
+    &:nth-child(2) {
-    &:nth-child(7) { animation-delay: 3.5s; }
+      animation-delay: 1s;
+    }
+
+    &:nth-child(3) {
+      animation-delay: 1.5s;
+    }
+
+    &:nth-child(4) {
+      animation-delay: 2s;
+    }
+
+    &:nth-child(5) {
+      animation-delay: 2.5s;
+    }
+
+    &:nth-child(6) {
+      animation-delay: 3s;
+    }
+
+    &:nth-child(7) {
+      animation-delay: 3.5s;
+    }
   }
 }
 
@@ -153,10 +185,12 @@ body {
   flex-direction: column;
   justify-content: flex-end;
 }
+
 #playedcardplayer p {
   font-size: 12px;
   height: 4%;
 }
+
 #playedcardplayer img {
   height: 90%;
 }
@@ -168,43 +202,52 @@ body {
   width: 100%;
   justify-content: space-between;
 }
+
 #firstCardObject {
   display: flex;
   flex-direction: column;
   margin-right: 4%;
 }
+
 #firstCardObject img {
   height: 90%;
 }
+
 #firstCardObject p {
   height: 10%;
   font-size: 20px;
 
 }
+
 #nextPlayers {
   display: flex;
   flex-direction: column;
   align-items: center;
   height: 0;
+
   p {
     margin-top: 0;
     margin-bottom: 0;
   }
 }
+
 #invisible {
   visibility: hidden;
 }
+
 #selecttrumpsuit {
   display: flex;
   flex-direction: column;
   align-items: center;
   height: 100%;
 }
+
 #rules {
   color: @color;
   font-size: 1.5em;
   font-family: Arial, serif;
 }
+
 .score-table {
   background-color: rgba(255, 255, 255, 0.1);
   border-radius: 8px;
@@ -213,11 +256,13 @@ body {
   backdrop-filter: blur(8px);
   box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
 }
+
 .score-header {
   font-weight: bold;
   color: #000000;
   border-bottom: 1px solid rgba(255, 255, 255, 0.3);
 }
+
 .score-row {
   color: #000000;
 }

knockoutwhistweb/app/auth/AuthAction.scala

@@ -15,13 +15,6 @@ class AuthAction @Inject()(val sessionManager: SessionManager, val parser: BodyP
 
   override def executionContext: ExecutionContext = ec
 
-  protected def getUserFromSession(request: RequestHeader): Option[User] = {
-    val session = request.cookies.get("sessionId")
-    if (session.isDefined)
-      return sessionManager.getUserBySession(session.get.value)
-    None
-  }
-  
   override def invokeBlock[A](
                                request: Request[A],
                                block: AuthenticatedRequest[A] => Future[Result]
@@ -33,5 +26,12 @@ class AuthAction @Inject()(val sessionManager: SessionManager, val parser: BodyP
         Future.successful(Results.Redirect(routes.UserController.login()))
     }
   }
+
+  protected def getUserFromSession(request: RequestHeader): Option[User] = {
+    val session = request.cookies.get("sessionId")
+    if (session.isDefined)
+      return sessionManager.getUserBySession(session.get.value)
+    None
+  }
 }
 

knockoutwhistweb/app/components/WebApplicationConfiguration.scala

@@ -8,6 +8,7 @@ import de.knockoutwhist.utils.events.EventListener
 class WebApplicationConfiguration extends DefaultConfiguration {
 
   override def uis: Set[UI] = Set()
+
   override def listener: Set[EventListener] = Set(DelayHandler)
 
 }

knockoutwhistweb/app/controllers/IngameController.scala

@@ -1,7 +1,7 @@
 package controllers
 
 import auth.{AuthAction, AuthenticatedRequest}
-import de.knockoutwhist.control.GameState.{FinishedMatch, InGame, Lobby, SelectTrump, TieBreak}
+import de.knockoutwhist.control.GameState.*
 import exceptions.*
 import logic.PodManager
 import logic.game.GameLobby
@@ -20,11 +20,27 @@ import scala.util.Try
 @Singleton
 class IngameController @Inject()(
                                   val cc: ControllerComponents,
-                                   val podManager: PodManager,
                                   val authAction: AuthAction,
                                   implicit val ec: ExecutionContext
                                 ) extends AbstractController(cc) {
 
+  def game(gameId: String): Action[AnyContent] = authAction { implicit request: AuthenticatedRequest[AnyContent] =>
+    val game = PodManager.getGame(gameId)
+    game match {
+      case Some(g) =>
+        val results = Try {
+          returnInnerHTML(g, request.user)
+        }
+        if (results.isSuccess) {
+          Ok(views.html.main("In-Game - Knockout Whist")(results.get))
+        } else {
+          InternalServerError(results.failed.get.getMessage)
+        }
+      case None =>
+        Redirect(routes.MainMenuController.mainMenu())
+    }
+  }
+
   def returnInnerHTML(gameLobby: GameLobby, user: User): Html = {
     gameLobby.logic.getCurrentState match {
       case Lobby => views.html.lobby.lobby(Some(user), gameLobby)
@@ -53,24 +69,8 @@ class IngameController @Inject() (
     }
   }
 
-  def game(gameId: String): Action[AnyContent] = authAction { implicit request: AuthenticatedRequest[AnyContent] =>
-    val game = podManager.getGame(gameId)
-    game match {
-      case Some(g) =>
-        val results = Try {
-          returnInnerHTML(g, request.user)
-        }
-        if (results.isSuccess) {
-          Ok(views.html.main("In-Game - Knockout Whist")(results.get))
-        } else {
-          InternalServerError(results.failed.get.getMessage)
-        }
-      case None =>
-        Redirect(routes.MainMenuController.mainMenu())
-    }
-  }
   def startGame(gameId: String): Action[AnyContent] = authAction { implicit request: AuthenticatedRequest[AnyContent] =>
-    val game = podManager.getGame(gameId)
+    val game = PodManager.getGame(gameId)
     val result = Try {
       game match {
         case Some(g) =>
@@ -111,8 +111,9 @@ class IngameController @Inject() (
       }
     }
   }
+
   def kickPlayer(gameId: String, playerToKick: String): Action[AnyContent] = authAction { implicit request: AuthenticatedRequest[AnyContent] =>
-    val game = podManager.getGame(gameId)
+    val game = PodManager.getGame(gameId)
     val playerToKickUUID = UUID.fromString(playerToKick)
     val result = Try {
       game.get.leaveGame(playerToKickUUID)
@@ -129,15 +130,17 @@ class IngameController @Inject() (
       ))
     }
   }
+
   def leaveGame(gameId: String): Action[AnyContent] = authAction { implicit request: AuthenticatedRequest[AnyContent] =>
-    val game = podManager.getGame(gameId)
+    val game = PodManager.getGame(gameId)
     val result = Try {
       game.get.leaveGame(request.user.id)
     }
     if (result.isSuccess) {
       Ok(Json.obj(
         "status" -> "success",
-        "redirectUrl" -> routes.MainMenuController.mainMenu().url
+        "redirectUrl" -> routes.MainMenuController.mainMenu().url,
+        "content" -> views.html.mainmenu.creategame(Some(request.user)).toString
       ))
     } else {
       InternalServerError(Json.obj(
@@ -148,7 +151,7 @@ class IngameController @Inject() (
   }
 
   def playCard(gameId: String): Action[AnyContent] = authAction { implicit request: AuthenticatedRequest[AnyContent] => {
-    val game = podManager.getGame(gameId)
+    val game = PodManager.getGame(gameId)
     game match {
       case Some(g) =>
         val jsonBody = request.body.asJson
@@ -218,8 +221,9 @@ class IngameController @Inject() (
     }
   }
   }
+
   def playDogCard(gameId: String): Action[AnyContent] = authAction { implicit request: AuthenticatedRequest[AnyContent] => {
-    val game = podManager.getGame(gameId)
+    val game = PodManager.getGame(gameId)
     game match {
       case Some(g) => {
         val jsonBody = request.body.asJson
@@ -282,8 +286,9 @@ class IngameController @Inject() (
     }
   }
   }
+
   def playTrump(gameId: String): Action[AnyContent] = authAction { implicit request: AuthenticatedRequest[AnyContent] =>
-    val game = podManager.getGame(gameId)
+    val game = PodManager.getGame(gameId)
     game match {
       case Some(g) =>
         val jsonBody = request.body.asJson
@@ -334,8 +339,9 @@ class IngameController @Inject() (
         NotFound("Game not found")
     }
   }
+
   def playTie(gameId: String): Action[AnyContent] = authAction { implicit request: AuthenticatedRequest[AnyContent] =>
-    val game = podManager.getGame(gameId)
+    val game = PodManager.getGame(gameId)
     game match {
       case Some(g) =>
         val jsonBody = request.body.asJson
@@ -389,7 +395,7 @@ class IngameController @Inject() (
 
 
   def returnToLobby(gameId: String): Action[AnyContent] = authAction { implicit request: AuthenticatedRequest[AnyContent] =>
-    val game = podManager.getGame(gameId)
+    val game = PodManager.getGame(gameId)
     game match {
       case Some(g) =>
         val result = Try {

knockoutwhistweb/app/controllers/JavaScriptRoutingController.scala

@@ -1,7 +1,6 @@
 package controllers
 
-import auth.{AuthAction, AuthenticatedRequest}
+import auth.AuthAction
-import logic.PodManager
 import play.api.mvc.{Action, AnyContent, BaseController, ControllerComponents}
 import play.api.routing.JavaScriptReverseRouter
 
@@ -10,7 +9,6 @@ import javax.inject.Inject
 class JavaScriptRoutingController @Inject()(
                                              val controllerComponents: ControllerComponents,
                                              val authAction: AuthAction,
-                                              val podManager: PodManager
                                            ) extends BaseController {
   def javascriptRoutes(): Action[AnyContent] =
     Action { implicit request =>
@@ -19,15 +17,6 @@ class JavaScriptRoutingController  @Inject()(
           routes.javascript.MainMenuController.createGame,
           routes.javascript.MainMenuController.joinGame,
           routes.javascript.MainMenuController.navSPA,
-          routes.javascript.IngameController.startGame,
-          routes.javascript.IngameController.kickPlayer,
-          routes.javascript.IngameController.leaveGame,
-          routes.javascript.IngameController.playCard,
-          routes.javascript.IngameController.playDogCard,
-          routes.javascript.IngameController.playTrump,
-          routes.javascript.IngameController.playTie,
-          routes.javascript.IngameController.returnToLobby,
-          routes.javascript.PollingController.polling,
           routes.javascript.UserController.login_Post
         )
       ).as("text/javascript")

knockoutwhistweb/app/controllers/MainMenuController.scala

@@ -17,7 +17,6 @@ import javax.inject.*
 class MainMenuController @Inject()(
                                     val controllerComponents: ControllerComponents,
                                     val authAction: AuthAction,
-                                    val podManager: PodManager,
                                     val ingameController: IngameController
                                   ) extends BaseController {
 
@@ -39,7 +38,7 @@ class MainMenuController @Inject()(
       val playeramount: String = (jsonBody.get \ "playeramount").asOpt[String]
         .getOrElse(throw new IllegalArgumentException("Player amount is required."))
 
-      val gameLobby = podManager.createGame(
+      val gameLobby = PodManager.createGame(
         host = request.user,
         name = gamename,
         maxPlayers = playeramount.toInt
@@ -64,7 +63,7 @@ class MainMenuController @Inject()(
       (jsValue \ "gameId").asOpt[String]
     }
     if (gameId.isDefined) {
-      val game = podManager.getGame(gameId.get)
+      val game = PodManager.getGame(gameId.get)
       game match {
         case Some(g) =>
           g.addUser(request.user)

knockoutwhistweb/app/controllers/PollingController.scala

@@ -1,153 +0,0 @@
-package controllers
-
-import auth.{AuthAction, AuthenticatedRequest}
-import controllers.PollingController.{scheduler, timeoutDuration}
-import de.knockoutwhist.cards.Hand
-import de.knockoutwhist.player.AbstractPlayer
-import logic.PodManager
-import logic.game.{GameLobby, PollingEvents}
-import logic.game.PollingEvents.{CardPlayed, LobbyCreation, LobbyUpdate, NewRound, NewTrick, ReloadEvent}
-import model.sessions.UserSession
-import model.users.User
-import play.api.libs.json.{JsArray, JsValue, Json}
-import play.api.mvc.{AbstractController, Action, AnyContent, ControllerComponents, Result}
-import util.WebUIUtils
-
-import javax.inject.{Inject, Singleton}
-import scala.concurrent.{ExecutionContext, Future}
-import java.util.concurrent.{Executors, ScheduledExecutorService, TimeUnit}
-import scala.concurrent.duration.*
-object PollingController {
-  private val scheduler: ScheduledExecutorService = Executors.newSingleThreadScheduledExecutor()
-  private val timeoutDuration = 25.seconds
-}
-@Singleton
-class PollingController @Inject() (
-                                    val cc: ControllerComponents,
-                                    val podManager: PodManager,
-                                    val authAction: AuthAction,
-                                    val ingameController: IngameController,
-                                    implicit val ec: ExecutionContext
-                                  ) extends AbstractController(cc) {
-
-  private def buildCardPlayResponse(game: GameLobby, hand: Option[Hand], player: AbstractPlayer, newRound: Boolean): JsValue = {
-    val currentRound = game.logic.getCurrentRound.get
-    val currentTrick = game.logic.getCurrentTrick.get
-
-    val trickCardsJson = Json.toJson(
-      currentTrick.cards.map { case (card, player) =>
-        Json.obj("cardId" -> WebUIUtils.cardtoString(card), "player" -> player.name)
-      }
-    )
-    val scoreTableJson = Json.toJson(
-      game.getLogic.getPlayerQueue.get.toList.map { player =>
-        Json.obj(
-          "name" -> player.name,
-          "tricks" -> currentRound.tricklist.count(_.winner.contains(player))
-        )
-      }
-    )
-
-    val stringHand = hand.map { h =>
-      val cardStrings = h.cards.map(WebUIUtils.cardtoString)
-      Json.toJson(cardStrings).as[JsArray]
-    }.getOrElse(Json.arr())
-
-    val firstCardId = currentTrick.firstCard.map(WebUIUtils.cardtoString).getOrElse("BLANK")
-    val nextPlayer = game.getLogic.getPlayerQueue.get.duplicate().nextPlayer().name
-    Json.obj(
-      "status" -> "cardPlayed",
-      "animation" -> newRound,
-      "handData" -> stringHand,
-      "dog" -> player.isInDogLife,
-      "currentPlayerName" -> game.logic.getCurrentPlayer.get.name,
-      "trumpSuit" -> currentRound.trumpSuit.toString,
-      "trickCards" -> trickCardsJson,
-      "scoreTable" -> scoreTableJson,
-      "firstCardId" -> firstCardId,
-      "nextPlayer" -> nextPlayer,
-      "yourTurn" -> (game.logic.getCurrentPlayer.get == player)
-    )
-  }
-
-  private def buildLobbyUsersResponse(game: GameLobby, userSession: UserSession): JsValue = {
-    Json.obj(
-      "status" -> "lobbyUpdate",
-      "host" ->  userSession.host,
-      "users" -> game.getUsers.map(u => Json.obj(
-        "name" -> u.name,
-        "id" -> u.id,
-        "self" -> (u.id == userSession.id)
-      )),
-      "maxPlayers" -> game.maxPlayers
-    )
-  }
-
-
-  def handleEvent(event: PollingEvents, game: GameLobby, userSession: UserSession): Result = {
-    event match {
-      case NewRound =>
-        val player = game.getPlayerByUser(userSession.user)
-        val hand = player.currentHand()
-        val jsonResponse = buildCardPlayResponse(game, hand, player, true)
-        Ok(jsonResponse)
-      case NewTrick =>
-        val player = game.getPlayerByUser(userSession.user)
-        val hand = player.currentHand()
-        val jsonResponse = buildCardPlayResponse(game, hand, player, false)
-        Ok(jsonResponse)
-      case CardPlayed =>
-        val player = game.getPlayerByUser(userSession.user)
-        val hand = player.currentHand()
-        val jsonResponse = buildCardPlayResponse(game, hand, player, false)
-        Ok(jsonResponse)
-      case LobbyUpdate =>
-        Ok(buildLobbyUsersResponse(game, userSession))
-      case ReloadEvent =>
-        val jsonResponse = Json.obj(
-          "status" -> "reloadEvent",
-          "redirectUrl" -> routes.IngameController.game(game.id).url,
-          "content" -> ingameController.returnInnerHTML(game, userSession.user).toString
-        )
-        Ok(jsonResponse)
-    }
-  }
-
-  def polling(gameId: String): Action[AnyContent] = authAction.async { implicit request: AuthenticatedRequest[AnyContent] =>
-
-    val playerId = request.user.id
-
-    podManager.getGame(gameId) match {
-      case Some(game) =>
-        val playerEventQueue = game.getEventsOfPlayer(playerId)
-        if (playerEventQueue.nonEmpty) {
-          val event = playerEventQueue.dequeue()
-          Future.successful(handleEvent(event, game, game.getUserSession(playerId)))
-        } else {
-          val eventPromise = game.registerWaiter(playerId)
-          val scheduledFuture = scheduler.schedule(
-            new Runnable {
-              override def run(): Unit =
-                eventPromise.tryFailure(new java.util.concurrent.TimeoutException("Polling Timeout"))
-            },
-            timeoutDuration.toMillis,
-            TimeUnit.MILLISECONDS
-          )
-          eventPromise.future.map { event =>
-            scheduledFuture.cancel(false)
-            game.removeWaiter(playerId)
-            handleEvent(event, game, game.getUserSession(playerId))
-          }.recover {
-            case _: Throwable =>
-              game.removeWaiter(playerId)
-              NoContent
-          }
-        }
-
-      case None =>
-        Future.successful(NotFound("Game not found."))
-    }
-  }
-
-
-}

knockoutwhistweb/app/controllers/WebsocketController.scala

@@ -0,0 +1,45 @@
+package controllers
+
+
+import auth.AuthAction
+import logic.PodManager
+import logic.user.SessionManager
+import model.sessions.{UserSession, UserWebsocketActor}
+import org.apache.pekko.actor.{ActorRef, ActorSystem, Props}
+import org.apache.pekko.stream.Materializer
+import play.api.*
+import play.api.libs.streams.ActorFlow
+import play.api.mvc.*
+
+import javax.inject.*
+
+
+@Singleton
+class WebsocketController @Inject()(
+                                     cc: ControllerComponents,
+                                     val sessionManger: SessionManager,
+                                   )(implicit system: ActorSystem, mat: Materializer) extends AbstractController(cc) {
+
+  def socket(): WebSocket = WebSocket.accept[String, String] { request =>
+    val session = request.cookies.get("sessionId")
+    if (session.isEmpty) throw new Exception("No session cookie found")
+    val userOpt = sessionManger.getUserBySession(session.get.value)
+    if (userOpt.isEmpty) throw new Exception("Invalid session")
+    val user = userOpt.get
+    val game = PodManager.identifyGameOfUser(user)
+    if (game.isEmpty) throw new Exception("User is not in a game")
+    val userSession = game.get.getUserSession(user.id)
+    ActorFlow.actorRef { out =>
+      println("Connect received")
+      KnockOutWebSocketActorFactory.create(out, userSession)
+    }
+  }
+
+  object KnockOutWebSocketActorFactory {
+    def create(out: ActorRef, userSession: UserSession): Props = {
+      Props(new UserWebsocketActor(out, userSession))
+    }
+  }
+
+
+}

knockoutwhistweb/app/logic/PodManager.scala

@@ -11,14 +11,14 @@ import util.GameUtil
 import javax.inject.Singleton
 import scala.collection.mutable
 
-@Singleton
+object PodManager {
-class PodManager {
 
   val TTL: Long = System.currentTimeMillis() + 86400000L // 24 hours in milliseconds
   val podIp: String = System.getenv("POD_IP")
   val podName: String = System.getenv("POD_NAME")
 
   private val sessions: mutable.Map[String, GameLobby] = mutable.Map()
+  private val userSession: mutable.Map[User, String] = mutable.Map()
   private val injector: Injector = Guice.createInjector(KnockOutWebConfigurationModule())
 
   def createGame(
@@ -35,6 +35,7 @@ class PodManager {
       host = host
     )
     sessions += (gameLobby.id -> gameLobby)
+    userSession += (host -> gameLobby.id)
     gameLobby
   }
 
@@ -42,8 +43,31 @@ class PodManager {
     sessions.get(gameId)
   }
 
-  private[logic] def removeGame(gameId: String): Unit = {
+  def registerUserToGame(user: User, gameId: String): Boolean = {
-    sessions.remove(gameId)
+    if (sessions.contains(gameId)) {
+      userSession += (user -> gameId)
+      true
+    } else {
+      false
+    }
   }
 
+  def unregisterUserFromGame(user: User): Unit = {
+    userSession.remove(user)
+  }
+
+  def identifyGameOfUser(user: User): Option[GameLobby] = {
+    userSession.get(user) match {
+      case Some(gameId) => sessions.get(gameId)
+      case None => None
+    }
+  }
+
+  private[logic] def removeGame(gameId: String): Unit = {
+    sessions.remove(gameId)
+    // Also remove all user sessions associated with this game
+    userSession.filterInPlace((_, v) => v != gameId)
+  }
+
+
 }

knockoutwhistweb/app/logic/game/GameLobby.scala

@@ -2,24 +2,23 @@ package logic.game
 
 import de.knockoutwhist.cards.{Hand, Suit}
 import de.knockoutwhist.control.GameLogic
-import de.knockoutwhist.control.GameState.{InGame, Lobby, MainMenu}
+import de.knockoutwhist.control.GameState.{Lobby, MainMenu}
 import de.knockoutwhist.control.controllerBaseImpl.sublogic.util.{MatchUtil, PlayerUtil}
-import de.knockoutwhist.events.global.tie.TieTurnEvent
+import de.knockoutwhist.events.global.{GameStateChangeEvent, SessionClosed}
-import de.knockoutwhist.events.global.{CardPlayedEvent, GameStateChangeEvent, NewTrickEvent, SessionClosed}
+import de.knockoutwhist.events.player.PlayerEvent
-import de.knockoutwhist.events.player.{PlayerEvent, ReceivedHandEvent}
 import de.knockoutwhist.player.Playertype.HUMAN
 import de.knockoutwhist.player.{AbstractPlayer, PlayerFactory}
 import de.knockoutwhist.rounds.{Match, Round, Trick}
 import de.knockoutwhist.utils.events.{EventListener, SimpleEvent}
 import exceptions.*
-import logic.game.PollingEvents.{CardPlayed, LobbyCreation, LobbyUpdate, NewRound, NewTrick, ReloadEvent}
+import logic.PodManager
 import model.sessions.{InteractionType, UserSession}
 import model.users.User
+import play.api.libs.json.{JsObject, Json}
 
 import java.util.UUID
 import scala.collection.mutable
 import scala.collection.mutable.ListBuffer
-import scala.concurrent.Promise as ScalaPromise
 
 class GameLobby private(
                          val logic: GameLogic,
@@ -30,38 +29,9 @@ class GameLobby private(
                        ) extends EventListener {
 
 
-
   private val users: mutable.Map[UUID, UserSession] = mutable.Map()
-  private val eventsPerPlayer: mutable.Map[UUID, mutable.Queue[PollingEvents]] = mutable.Map()
-  private val waitingPromises: mutable.Map[UUID, ScalaPromise[PollingEvents]] = mutable.Map()
-  private val lock = new Object
-  lock.synchronized {
   logic.addListener(this)
   logic.createSession()
-  }
-
-
-  def registerWaiter(playerId: UUID): ScalaPromise[PollingEvents] = {
-    val promise = ScalaPromise[PollingEvents]()
-    lock.synchronized {
-      val queue = eventsPerPlayer.getOrElseUpdate(playerId, mutable.Queue())
-
-      if (queue.nonEmpty) {
-        val evt = queue.dequeue()
-        promise.success(evt)
-        promise
-      } else {
-        waitingPromises.put(playerId, promise)
-        promise
-      }
-    }
-  }
-
-  def removeWaiter(playerId: UUID): Unit = {
-    lock.synchronized {
-      waitingPromises.remove(playerId)
-    }
-  }
 
   def addUser(user: User): UserSession = {
     if (users.size >= maxPlayers) throw new GameFullException("The game is full!")
@@ -69,60 +39,32 @@ class GameLobby private(
     if (logic.getCurrentState != Lobby) throw new IllegalStateException("The game has already started!")
     val userSession = new UserSession(
       user = user,
-      host = false
+      host = false,
+      gameLobby = this
     )
     users += (user.id -> userSession)
-    addToQueue(LobbyUpdate)
+    PodManager.registerUserToGame(user, id)
+    //TODO : transmit Lobby Update transmitToAll()
     userSession
   }
 
   override def listen(event: SimpleEvent): Unit = {
     event match {
-      case event: ReceivedHandEvent =>
-        addToQueue(NewRound)
-        users.get(event.playerId).foreach(session => session.updatePlayer(event))
-      case event: CardPlayedEvent =>
-        addToQueue(CardPlayed)
-      case event: TieTurnEvent =>
-        addToQueue(ReloadEvent)
-        users.get(event.player.id).foreach(session => session.updatePlayer(event))
       case event: PlayerEvent =>
         users.get(event.playerId).foreach(session => session.updatePlayer(event))
-      case event: NewTrickEvent =>
-        addToQueue(NewTrick)
       case event: GameStateChangeEvent =>
         if (event.oldState == MainMenu && event.newState == Lobby) {
           return
         }
-        addToQueue(ReloadEvent)
-        users.values.foreach(session => session.updatePlayer(event))
-      case event: SessionClosed =>
         users.values.foreach(session => session.updatePlayer(event))
       case event: SimpleEvent =>
         users.values.foreach(session => session.updatePlayer(event))
     }
   }
 
-  private def addToQueue(event: PollingEvents): Unit = {
-    lock.synchronized {
-      users.keys.foreach { playerId =>
-        val q = eventsPerPlayer.getOrElseUpdate(playerId, mutable.Queue())
-        q.enqueue(event)
-      }
-      val waiterIds = waitingPromises.keys.toList
-      waiterIds.foreach { playerId =>
-        val q = eventsPerPlayer.getOrElseUpdate(playerId, mutable.Queue())
-        if (q.nonEmpty) {
-          val evt = q.dequeue()
-          val p = waitingPromises.remove(playerId)
-          p.foreach(_.success(evt))
-        }
-      }
-    }
-  }
-
   /**
    * Start the game if the user is the host.
+   *
    * @param user the user who wants to start the game.
    */
   def startGame(user: User): Unit = {
@@ -149,6 +91,7 @@ class GameLobby private(
 
   /**
    * Remove the user from the game lobby.
+   *
    * @param user the user who wants to leave the game.
    */
   def leaveGame(userId: UUID): Unit = {
@@ -156,12 +99,27 @@ class GameLobby private(
     if (sessionOpt.isEmpty) {
       throw new NotInThisGameException("You are not in this game!")
     }
+    if (sessionOpt.get.host) {
+      logic.invoke(SessionClosed())
+      users.clear()
+      PodManager.removeGame(id)
+      return
+    }
+    sessionOpt.get.websocketActor.foreach(act => act.transmitJsonToClient(Json.obj(
+      "id" -> "-1",
+      "event" -> "SessionClosed",
+      "data" -> Json.obj(
+        "reason" -> "You left the game (or got kicked)."
+      )
+    )))
     users.remove(userId)
-    addToQueue(LobbyUpdate)
+    PodManager.unregisterUserFromGame(sessionOpt.get.user)
+    //TODO: transmit Lobby Update transmitToAll()
   }
 
   /**
    * Play a card from the player's hand.
+   *
    * @param userSession the user session of the player.
    * @param cardIndex   the index of the card in the player's hand.
    */
@@ -179,8 +137,33 @@ class GameLobby private(
     logic.playerInputLogic.receivedCard(card)
   }
 
+  private def getHand(player: AbstractPlayer): Hand = {
+    val handOption = player.currentHand()
+    if (handOption.isEmpty) {
+      throw new IllegalStateException("You have no cards!")
+    }
+    handOption.get
+  }
+
+  private def getRound: Round = {
+    val roundOpt = logic.getCurrentRound
+    if (roundOpt.isEmpty) {
+      throw new IllegalStateException("No round is currently running!")
+    }
+    roundOpt.get
+  }
+
+  private def getTrick: Trick = {
+    val trickOpt = logic.getCurrentTrick
+    if (trickOpt.isEmpty) {
+      throw new IllegalStateException("No trick is currently running!")
+    }
+    trickOpt.get
+  }
+
   /**
    * Play a card from the player's hand while in dog life or skip the round.
+   *
    * @param userSession the user session of the player.
    * @param cardIndex   the index of the card in the player's hand or -1 if the player wants to skip the round.
    */
@@ -204,6 +187,7 @@ class GameLobby private(
 
   /**
    * Select the trump suit for the round.
+   *
    * @param userSession the user session of the player.
    * @param trumpIndex  the index of the trump suit.
    */
@@ -215,6 +199,19 @@ class GameLobby private(
     logic.playerInputLogic.receivedTrumpSuit(selectedTrump)
   }
 
+
+  //-------------------
+
+  private def getPlayerInteractable(userSession: UserSession, iType: InteractionType): AbstractPlayer = {
+    if (!userSession.lock.isHeldByCurrentThread) {
+      throw new IllegalStateException("The user session is not locked!")
+    }
+    if (userSession.canInteract.isEmpty || userSession.canInteract.get != iType) {
+      throw new NotInteractableException("You can't play a card!")
+    }
+    getPlayerBySession(userSession)
+  }
+
   /**
    *
    * @param userSession
@@ -239,8 +236,9 @@ class GameLobby private(
     logic.createSession()
   }
 
-  
+  def getPlayerByUser(user: User): AbstractPlayer = {
-  //-------------------
+    getPlayerBySession(getUserSession(user.id))
+  }
 
   def getUserSession(userId: UUID): UserSession = {
     val sessionOpt = users.get(userId)
@@ -250,20 +248,6 @@ class GameLobby private(
     sessionOpt.get
   }
 
-  def getPlayerByUser(user: User): AbstractPlayer = {
-    getPlayerBySession(getUserSession(user.id))
-  }
-
-  def getPlayers: mutable.Map[UUID, UserSession] = {
-    users.clone()
-  }
-
-  def getLogic: GameLogic = {
-    logic
-  }
-  def getEventsOfPlayer(playerId: UUID): mutable.Queue[PollingEvents] = {
-    eventsPerPlayer.getOrElseUpdate(playerId, mutable.Queue())
-  }
   private def getPlayerBySession(userSession: UserSession): AbstractPlayer = {
     val playerOption = getMatch.totalplayers.find(_.id == userSession.id)
     if (playerOption.isEmpty) {
@@ -272,24 +256,6 @@ class GameLobby private(
     playerOption.get
   }
 
-  private def getPlayerInteractable(userSession: UserSession, iType: InteractionType): AbstractPlayer = {
-    if (!userSession.lock.isHeldByCurrentThread) {
-      throw new IllegalStateException("The user session is not locked!")
-    }
-    if (userSession.canInteract.isEmpty || userSession.canInteract.get != iType) {
-      throw new NotInteractableException("You can't play a card!")
-    }
-    getPlayerBySession(userSession)
-  }
-  
-  private def getHand(player: AbstractPlayer): Hand = {
-    val handOption = player.currentHand()
-    if (handOption.isEmpty) {
-      throw new IllegalStateException("You have no cards!")
-    }
-    handOption.get
-  }
-  
   private def getMatch: Match = {
     val matchOpt = logic.getCurrentMatch
     if (matchOpt.isEmpty) {
@@ -298,26 +264,24 @@ class GameLobby private(
     matchOpt.get
   }
 
-  private def getRound: Round = {
+  def getPlayers: mutable.Map[UUID, UserSession] = {
-    val roundOpt = logic.getCurrentRound
+    users.clone()
-    if (roundOpt.isEmpty) {
-      throw new IllegalStateException("No round is currently running!")
-    }
-    roundOpt.get
   }
 
-  private def getTrick: Trick = {
+  def getLogic: GameLogic = {
-    val trickOpt = logic.getCurrentTrick
+    logic
-    if (trickOpt.isEmpty) {
-      throw new IllegalStateException("No trick is currently running!")
-    }
-    trickOpt.get
   }
 
   def getUsers: Set[User] = {
     users.values.map(d => d.user).toSet
   }
 
+  private def transmitToAll(event: JsObject): Unit = {
+    users.values.foreach(session => {
+      session.websocketActor.foreach(act => act.transmitJsonToClient(event))
+    })
+  }
+
 }
 
 object GameLobby {
@@ -338,7 +302,8 @@ object GameLobby {
     )
     lobby.users += (host.id -> new UserSession(
       user = host,
-      host = true
+      host = true,
+      gameLobby = lobby
     ))
     lobby
   }

knockoutwhistweb/app/logic/game/PollingEvents.scala

@@ -1,10 +0,0 @@
-package logic.game
-
-enum PollingEvents {
-  case CardPlayed
-  case NewRound
-  case NewTrick
-  case ReloadEvent
-  case LobbyUpdate
-  case LobbyCreation
-}

knockoutwhistweb/app/logic/user/SessionManager.scala

@@ -8,7 +8,9 @@ import model.users.User
 trait SessionManager {
 
   def createSession(user: User): String
+
   def getUserBySession(sessionId: String): Option[User]
+
   def invalidateSession(sessionId: String): Unit
 
 }

knockoutwhistweb/app/logic/user/UserManager.scala

@@ -8,9 +8,13 @@ import model.users.User
 trait UserManager {
 
   def addUser(name: String, password: String): Boolean
+
   def authenticate(name: String, password: String): Option[User]
+
   def userExists(name: String): Option[User]
+
   def userExistsById(id: Long): Option[User]
+
   def removeUser(name: String): Boolean
 
 }

knockoutwhistweb/app/model/sessions/PlayerSession.scala

@@ -7,7 +7,9 @@ import java.util.UUID
 trait PlayerSession {
 
   def id: UUID
+
   def name: String
+
   def updatePlayer(event: SimpleEvent): Unit
 
 }

knockoutwhistweb/app/model/sessions/UserSession.scala

@@ -2,14 +2,18 @@ package model.sessions
 
 import de.knockoutwhist.events.player.{RequestCardEvent, RequestTieChoiceEvent, RequestTrumpSuitEvent}
 import de.knockoutwhist.utils.events.SimpleEvent
+import logic.game.GameLobby
 import model.users.User
+import play.api.libs.json.JsObject
 
 import java.util.UUID
-import java.util.concurrent.locks.{Lock, ReentrantLock}
+import java.util.concurrent.locks.ReentrantLock
+import scala.util.Try
 
-class UserSession(val user: User, val host: Boolean) extends PlayerSession {
+class UserSession(val user: User, val host: Boolean, val gameLobby: GameLobby) extends PlayerSession {
-  var canInteract: Option[InteractionType] = None
   val lock: ReentrantLock = ReentrantLock()
+  var canInteract: Option[InteractionType] = None
+  var websocketActor: Option[UserWebsocketActor] = None
 
   override def updatePlayer(event: SimpleEvent): Unit = {
     event match {
@@ -32,4 +36,16 @@ class UserSession(val user: User, val host: Boolean) extends PlayerSession {
     canInteract = None
   }
 
+  def handleWebResponse(eventType: String, data: JsObject): Unit = {
+    lock.lock()
+    Try {
+      eventType match {
+        case "Ping" =>
+          // No action needed for Ping
+          ()
+      }
+    }
+    lock.unlock()
+  }
+
 }

knockoutwhistweb/app/model/sessions/UserWebsocketActor.scala

@@ -0,0 +1,94 @@
+package model.sessions
+
+import de.knockoutwhist.utils.events.SimpleEvent
+import org.apache.pekko.actor.{Actor, ActorRef}
+import play.api.libs.json.{JsObject, JsValue, Json}
+import util.WebsocketEventMapper
+
+import scala.util.{Failure, Success, Try}
+
+class UserWebsocketActor(
+                          out: ActorRef,
+                          session: UserSession
+                        ) extends Actor {
+
+  if (session.websocketActor.isDefined) {
+    session.websocketActor.foreach(actor => actor.transmitTextToClient("Error: Multiple websocket connections detected. Closing this connection."))
+    context.stop(self)
+  } else {
+    session.websocketActor = Some(this)
+  }
+
+  override def receive: Receive = {
+    case msg: String =>
+      val jsonObject = Try {
+        Json.parse(msg)
+      }
+      Try {
+        jsonObject match {
+          case Success(value) =>
+            handle(value)
+          case Failure(exception) =>
+            transmitTextToClient(s"Error parsing JSON: ${exception.getMessage}")
+        }
+      }.failed.foreach(
+        ex => transmitTextToClient(s"Error handling message: ${ex.getMessage}")
+      )
+    case other =>
+  }
+
+  private def transmitTextToClient(text: String): Unit = {
+    out ! text
+  }
+
+  private def handle(json: JsValue): Unit = {
+    val idOpt = (json \ "id").asOpt[String]
+    if (idOpt.isEmpty) {
+      transmitJsonToClient(Json.obj(
+        "status" -> "error",
+        "error" -> "Missing 'id' field"
+      ))
+      return
+    }
+    val id = idOpt.get
+    val eventOpt = (json \ "event").asOpt[String]
+    if (eventOpt.isEmpty) {
+      transmitJsonToClient(Json.obj(
+        "id" -> id,
+        "event" -> null,
+        "status" -> "error",
+        "error" -> "Missing 'event' field"
+      ))
+      return
+    }
+    val event = eventOpt.get
+    val data = (json \ "data").asOpt[JsObject].getOrElse(Json.obj())
+    val result = Try {
+      session.handleWebResponse(event, data)
+    }
+    if (result.isSuccess) {
+      transmitJsonToClient(Json.obj(
+        "id" -> id,
+        "event" -> event,
+        "status" -> "success"
+      ))
+    } else {
+      transmitJsonToClient(Json.obj(
+        "id" -> id,
+        "event" -> event,
+        "status" -> "error",
+        "error" -> result.failed.get.getMessage
+      ))
+    }
+  }
+
+  def transmitJsonToClient(jsonObj: JsObject): Unit = {
+    out ! jsonObj.toString()
+  }
+
+  def transmitEventToClient(event: SimpleEvent): Unit = {
+    val jsonString = WebsocketEventMapper.toJsonString(event)
+    out ! jsonString
+  }
+
+}

knockoutwhistweb/app/services/JwtKeyProvider.scala

@@ -12,10 +12,28 @@ import javax.inject.*
 @Singleton
 class JwtKeyProvider @Inject()(config: Configuration) {
 
-  private def cleanPem(pem: String): String =
+  val publicKey: RSAPublicKey = {
-    pem.replaceAll("-----BEGIN (.*)-----", "")
+    val pemOpt = config.getOptional[String]("auth.publicKeyPem")
-      .replaceAll("-----END (.*)-----", "")
+    val fileOpt = config.getOptional[String]("auth.publicKeyFile")
-      .replaceAll("\\s", "")
+
+    pemOpt.orElse(fileOpt.map { path =>
+      new String(Files.readAllBytes(Paths.get(path)))
+    }) match {
+      case Some(pem) => loadPublicKeyFromPem(pem)
+      case None => throw new RuntimeException("No RSA public key configured.")
+    }
+  }
+  val privateKey: RSAPrivateKey = {
+    val pemOpt = config.getOptional[String]("auth.privateKeyPem")
+    val fileOpt = config.getOptional[String]("auth.privateKeyFile")
+
+    pemOpt.orElse(fileOpt.map { path =>
+      new String(Files.readAllBytes(Paths.get(path)))
+    }) match {
+      case Some(pem) => loadPrivateKeyFromPem(pem)
+      case None => throw new RuntimeException("No RSA private key configured.")
+    }
+  }
 
   private def loadPublicKeyFromPem(pem: String): RSAPublicKey = {
     val decoded = Base64.getDecoder.decode(cleanPem(pem))
@@ -29,28 +47,9 @@ class JwtKeyProvider @Inject()(config: Configuration) {
     KeyFactory.getInstance("RSA").generatePrivate(spec).asInstanceOf[RSAPrivateKey]
   }
 
-  val publicKey: RSAPublicKey = {
+  private def cleanPem(pem: String): String =
-    val pemOpt = config.getOptional[String]("auth.publicKeyPem")
+    pem.replaceAll("-----BEGIN (.*)-----", "")
-    val fileOpt = config.getOptional[String]("auth.publicKeyFile")
+      .replaceAll("-----END (.*)-----", "")
-
+      .replaceAll("\\s", "")
-    pemOpt.orElse(fileOpt.map { path =>
-      new String(Files.readAllBytes(Paths.get(path)))
-    }) match {
-      case Some(pem) => loadPublicKeyFromPem(pem)
-      case None => throw new RuntimeException("No RSA public key configured.")
-    }
-  }
-
-  val privateKey: RSAPrivateKey = {
-    val pemOpt = config.getOptional[String]("auth.privateKeyPem")
-    val fileOpt = config.getOptional[String]("auth.privateKeyFile")
-
-    pemOpt.orElse(fileOpt.map { path =>
-      new String(Files.readAllBytes(Paths.get(path)))
-    }) match {
-      case Some(pem) => loadPrivateKeyFromPem(pem)
-      case None => throw new RuntimeException("No RSA private key configured.")
-    }
-  }
 
 }

knockoutwhistweb/app/util/WebsocketEventMapper.scala

@@ -0,0 +1,20 @@
+package util
+
+import de.knockoutwhist.utils.events.SimpleEvent
+import tools.jackson.databind.json.JsonMapper
+import tools.jackson.module.scala.ScalaModule
+
+object WebsocketEventMapper {
+
+  private val scalaModule = ScalaModule.builder()
+    .addAllBuiltinModules()
+    .supportScala3Classes(true)
+    .build()
+
+  private val mapper = JsonMapper.builder().addModule(scalaModule).build()
+
+  def toJsonString(obj: SimpleEvent): String = {
+    mapper.writeValueAsString(obj)
+  }
+
+}

knockoutwhistweb/app/views/ingame/finishedMatch.scala.html

@@ -34,4 +34,5 @@
             });
         }
         waitForFunction("pollForUpdates").then(fn => fn('@gamelobby.id'));
+    connectWebSocket()
 </script>

knockoutwhistweb/app/views/ingame/ingame.scala.html

@@ -44,7 +44,8 @@
                     <div class="d-flex justify-content-center g-3 mb-5" id="trick-cards-container">
                     @for((cardplayed, player) <- gamelobby.getLogic.getCurrentTrick.get.cards) {
                         <div class="col-auto">
-                            <div class="card text-center shadow-sm border-0 bg-transparent" style="width: 7rem; backdrop-filter: blur(4px);">
+                            <div class="card text-center shadow-sm border-0 bg-transparent" style="width: 7rem;
+                                backdrop-filter: blur(4px);">
                                 <div class="p-2">
                                     @util.WebUIUtils.cardtoImage(cardplayed) width="100%"/>
                                 </div>
@@ -63,7 +64,8 @@
                     <h5 class="fw-semibold mt-4 mb-1">First Card</h5>
                     <div class="d-inline-block border rounded shadow-sm p-1 bg-light" id="first-card-container">
                     @if(gamelobby.getLogic.getCurrentTrick.get.firstCard.isDefined) {
-                        @util.WebUIUtils.cardtoImage(gamelobby.getLogic.getCurrentTrick.get.firstCard.get) width="80px"/>
+                        @util.WebUIUtils.cardtoImage(gamelobby.getLogic.getCurrentTrick.get.firstCard.get)
+                        width="80px"/>
                     } else {
                         @views.html.render.card.apply("images/cards/1B.png")("Blank Card") width="80px"/>
                     }
@@ -71,7 +73,9 @@
                 </div>
             </div>
 
-            <div class="row justify-content-center g-2 mt-4 bottom-div" style="backdrop-filter: blur(4px); margin-left: 0; margin-right: 0;">
+            <div class="row justify-content-center g-2 mt-4 bottom-div" style="backdrop-filter: blur(4px);
+                margin-left: 0;
+                margin-right: 0;">
                 <div class="row justify-content-center ingame-cards-slide @{
                     !gamelobby.logic.getCurrentPlayer.contains(player) ? "inactive" |: ""
                 }" id="card-slide">
@@ -82,7 +86,8 @@
                         </div>
                         @if(player.isInDogLife) {
                             <div class="mt-2">
-                                <button class="btn btn-danger" onclick="handleSkipDogLife(this, '@gamelobby.id')">Skip Dog Life</button>
+                                <button class="btn btn-danger" onclick="handleSkipDogLife(this, '@gamelobby.id')">
+                                    Skip Dog Life</button>
                             </div>
                         }
                     </div>
@@ -104,4 +109,5 @@
             });
         }
         waitForFunction("pollForUpdates").then(fn => fn('@gamelobby.id'));
+    connectWebSocket()
 </script>

knockoutwhistweb/app/views/ingame/selecttrump.scala.html

@@ -18,22 +18,26 @@
                                 <div class="row justify-content-center col-auto mb-5">
                                     <div class="col-auto handcard">
                                         <div class="btn btn-outline-light p-0 border-0 shadow-none" data-trump="0" style="border-radius: 6px" onclick="handleTrumpSelection(this, '@gamelobby.id')">
-                                            @util.WebUIUtils.cardtoImage(de.knockoutwhist.cards.Card(de.knockoutwhist.cards.CardValue.Ace, de.knockoutwhist.cards.Suit.Spades)) width="120px" style="border-radius: 6px"/>
+                                            @util.WebUIUtils.cardtoImage(de.knockoutwhist.cards.Card(de.knockoutwhist.cards.CardValue.Ace, de.knockoutwhist.cards.Suit.Spades))
+                                            width="120px" style="border-radius: 6px"/>
                                         </div>
                                     </div>
                                     <div class="col-auto handcard">
                                         <div class="btn btn-outline-light p-0 border-0 shadow-none" data-trump="1" style="border-radius: 6px" onclick="handleTrumpSelection(this, '@gamelobby.id')">
-                                            @util.WebUIUtils.cardtoImage(de.knockoutwhist.cards.Card(de.knockoutwhist.cards.CardValue.Ace, de.knockoutwhist.cards.Suit.Hearts)) width="120px" style="border-radius: 6px"/>
+                                            @util.WebUIUtils.cardtoImage(de.knockoutwhist.cards.Card(de.knockoutwhist.cards.CardValue.Ace, de.knockoutwhist.cards.Suit.Hearts))
+                                            width="120px" style="border-radius: 6px"/>
                                         </div>
                                     </div>
                                     <div class="col-auto handcard">
                                         <div class="btn btn-outline-light p-0 border-0 shadow-none" data-trump="2" style="border-radius: 6px" onclick="handleTrumpSelection(this, '@gamelobby.id')">
-                                            @util.WebUIUtils.cardtoImage(de.knockoutwhist.cards.Card(de.knockoutwhist.cards.CardValue.Ace, de.knockoutwhist.cards.Suit.Diamonds)) width="120px" style="border-radius: 6px"/>
+                                            @util.WebUIUtils.cardtoImage(de.knockoutwhist.cards.Card(de.knockoutwhist.cards.CardValue.Ace, de.knockoutwhist.cards.Suit.Diamonds))
+                                            width="120px" style="border-radius: 6px"/>
                                         </div>
                                     </div>
                                     <div class="col-auto handcard">
                                         <div class="btn btn-outline-light p-0 border-0 shadow-none" data-trump="3" style="border-radius: 6px" onclick="handleTrumpSelection(this, '@gamelobby.id')">
-                                            @util.WebUIUtils.cardtoImage(de.knockoutwhist.cards.Card(de.knockoutwhist.cards.CardValue.Ace, de.knockoutwhist.cards.Suit.Clubs)) width="120px" style="border-radius: 6px"/>
+                                            @util.WebUIUtils.cardtoImage(de.knockoutwhist.cards.Card(de.knockoutwhist.cards.CardValue.Ace, de.knockoutwhist.cards.Suit.Clubs))
+                                            width="120px" style="border-radius: 6px"/>
                                         </div>
                                     </div>
                                 </div>
@@ -46,7 +50,8 @@
                                 </div>
                             } else {
                                 <div class="alert alert-warning" role="alert" aria-live="polite">
-                                    @gamelobby.logic.getCurrentMatch.get.roundlist.last.winner.get.name is choosing a trumpsuit. The new round will start once a suit is picked.
+                                    @gamelobby.logic.getCurrentMatch.get.roundlist.last.winner.get.name
+                                    is choosing a trumpsuit. The new round will start once a suit is picked.
                                 </div>
                             }
                         </div>
@@ -68,4 +73,5 @@
             });
         }
         waitForFunction("pollForUpdates").then(fn => fn('@gamelobby.id'));
+    connectWebSocket()
 </script>

knockoutwhistweb/app/views/ingame/tie.scala.html

@@ -23,7 +23,10 @@
                             @if(player.equals(gamelobby.logic.playerTieLogic.currentTiePlayer())) {
                                 @defining(gamelobby.logic.playerTieLogic.highestAllowedNumber()) { maxNum =>
                                     <div class="alert alert-info" role="alert" aria-live="polite">
-                                        Pick a number between 1 and @{maxNum + 1}. The resulting card will be your card for the cut.
+                                        Pick a number between 1 and @{
+                                        maxNum + 1
+                                    }.
+                                    The resulting card will be your card for the cut.
                                     </div>
 
                                     <div class="row g-2 align-items-center">
@@ -31,10 +34,13 @@
                                             <label for="tieNumber" class="col-form-label">Your number</label>
                                         </div>
                                         <div class="col-auto">
-                                            <input type="number" id="tieNumber" class="form-control" name="tie" min="1" max="@{maxNum + 1}" placeholder="1" required>
+                                            <input type="number" id="tieNumber" class="form-control" name="tie" min="1" max="@{
+                                                maxNum + 1
+                                            }" placeholder="1" required>
                                         </div>
                                         <div class="col-auto">
-                                            <button onclick="selectTie('@gamelobby.id')" class="btn btn-primary">Confirm</button>
+                                            <button onclick="selectTie('@gamelobby.id')" class="btn btn-primary">
+                                                Confirm</button>
                                         </div>
                                     </div>
                                     <h6 class="mt-4 mb-3">Currently Picked Cards</h6>
@@ -65,7 +71,8 @@
                                 }
                             } else {
                                 <div class="alert alert-warning" role="alert" aria-live="polite">
-                                    <strong>@gamelobby.logic.playerTieLogic.currentTiePlayer()</strong> is currently picking a number for the cut.
+                                    <strong>@gamelobby.logic.playerTieLogic.currentTiePlayer()</strong>
+                                    is currently picking a number for the cut.
                                 </div>
 
                                 <h6 class="mt-4 mb-3">Currently Picked Cards</h6>
@@ -114,4 +121,5 @@
             });
         }
         waitForFunction("pollForUpdates").then(fn => fn('@gamelobby.id'));
+    connectWebSocket()
 </script>

knockoutwhistweb/app/views/lobby/lobby.scala.html

@@ -14,7 +14,8 @@
         </div>
         <div class="row">
             <div class="col">
-                <div class="p-3 text-center fs-4" id="playerAmount">Playeramount: @gamelobby.getPlayers.size / @gamelobby.maxPlayers</div>
+                <div class="p-3 text-center fs-4" id="playerAmount">
+                    Playeramount: @gamelobby.getPlayers.size / @gamelobby.maxPlayers</div>
             </div>
         </div>
         <div class="row justify-content-center align-items-center flex-grow-1">
@@ -30,7 +31,8 @@
                             <a href="#" class="btn btn-danger disabled" aria-disabled="true" tabindex="-1">Remove</a>
                         } else {
                             <h5 class="card-title">@playersession.name</h5>
-                            <div class="btn btn-danger" onclick="removePlayer('@gamelobby.id', '@playersession.id')">Remove</div>
+                            <div class="btn btn-danger" onclick="removePlayer('@gamelobby.id', '@playersession.id')">
+                                Remove</div>
                         }
                         </div>
                     </div>
@@ -78,4 +80,5 @@
             });
         }
         waitForFunction("pollForUpdates").then(fn => fn('@gamelobby.id'));
+    connectWebSocket()
 </script>

knockoutwhistweb/app/views/login/login.scala.html

@@ -35,6 +35,7 @@
         particlesJS.load('particles-js', 'assets/conf/particlesjs-config.json', function() {
             console.log('callback - particles.js config loaded');
         });
+        disconnectWebSocket();
 </script>
 <div id="particles-js" style="background-color: rgb(11, 8, 8);
     background-size: cover;

knockoutwhistweb/app/views/main.scala.html

@@ -25,6 +25,7 @@
     </body>
     <script src="@routes.JavaScriptRoutingController.javascriptRoutes()" type="text/javascript"></script>
     <script src="@routes.Assets.versioned("javascripts/main.js")" type="text/javascript"></script>
+    <script src="@routes.Assets.versioned("../../public/javascripts/websocket.js")" type="text/javascript"></script>
     <script src="https://cdn.jsdelivr.net/npm/bootstrap@@5.3.8/dist/js/bootstrap.bundle.min.js" integrity="sha384-FKyoEForCGlyvwx9Hj09JcYn3nv7wiPVlz7YYwJrWVcXK/BmnVDxM+D2scQbITxI" crossorigin="anonymous"></script>
     <script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>
 </html>

knockoutwhistweb/app/views/mainmenu/creategame.scala.html

@@ -28,3 +28,6 @@
         </div>
     </div>
 </main>
+<script>
+            disconnectWebSocket();
+    </script>

knockoutwhistweb/app/views/mainmenu/navbar.scala.html

@@ -13,14 +13,16 @@
                 <ul class="navbar-nav mb-2 mb-lg-0">
                     @if(user.isDefined) {
                         <li class="nav-item">
-                                <a class="nav-link active" aria-current="page" onclick="navSpa('0', 'Knockout Whist - Create Game'); return false;" href="@routes.MainMenuController.mainMenu()">Create Game</a>
+                            <a class="nav-link active" aria-current="page" onclick="navSpa('0', 'Knockout Whist - Create Game'); return false;" href="@routes.MainMenuController.mainMenu()">
+                                Create Game</a>
                         </li>
                         <li class="nav-item">
                             <a class="nav-link disabled" aria-disabled="true">Lobbies</a>
                         </li>
                     }
                     <li class="nav-item">
-                            <a class="nav-link active" onclick="navSpa('1', 'Knockout Whist - Rules'); return false;" href="@routes.MainMenuController.rules()">Rules</a>
+                        <a class="nav-link active" onclick="navSpa('1', 'Knockout Whist - Rules'); return false;" href="@routes.MainMenuController.rules()">
+                            Rules</a>
                     </li>
                 </ul>
                 <form class="navbar-nav me-auto mb-2 mb-lg-0" onsubmit="joinGame(); return false;">
@@ -38,8 +40,10 @@
                             <span class="ms-2">@user.get.name</span>
                         </a>
                         <ul class="dropdown-menu dropdown-menu-end" aria-labelledby="profileDropdown">
-                                <li><a class="dropdown-item disabled" href="#" tabindex="-1" aria-disabled="true">Stats</a></li>
+                            <li><a class="dropdown-item disabled" href="#" tabindex="-1" aria-disabled="true">
-                                <li><a class="dropdown-item disabled" href="#" tabindex="-1" aria-disabled="true">Settings</a></li>
+                                Stats</a></li>
+                            <li><a class="dropdown-item disabled" href="#" tabindex="-1" aria-disabled="true">
+                                Settings</a></li>
                             <li><hr class="dropdown-divider"></li>
                             <li><a class="dropdown-item" href="@routes.UserController.logout()">Logout</a></li>
                         </ul>

knockoutwhistweb/app/views/mainmenu/rules.scala.html

@@ -175,3 +175,6 @@
         </div>
     </div>
 </main>
+<script>
+        disconnectWebSocket();
+</script>

knockoutwhistweb/conf/logback.xml

@@ -14,7 +14,8 @@
         <file>${application.home:-.}/logs/application.log</file>
         <encoder class="PatternLayoutEncoder">
             <charset>UTF-8</charset>
-      <pattern>%d{yyyy-MM-dd HH:mm:ss} %highlight(%-5level) %cyan(%logger{36}) %magenta(%X{pekkoSource}) %msg%n</pattern>
+            <pattern>%d{yyyy-MM-dd HH:mm:ss} %highlight(%-5level) %cyan(%logger{36}) %magenta(%X{pekkoSource}) %msg%n
+            </pattern>
         </encoder>
     </appender>
 
@@ -27,7 +28,8 @@
         <!-- <withJansi>true</withJansi> -->
         <encoder class="PatternLayoutEncoder">
             <charset>UTF-8</charset>
-      <pattern>%d{yyyy-MM-dd HH:mm:ss} %highlight(%-5level) %cyan(%logger{36}) %magenta(%X{pekkoSource}) %msg%n</pattern>
+            <pattern>%d{yyyy-MM-dd HH:mm:ss} %highlight(%-5level) %cyan(%logger{36}) %magenta(%X{pekkoSource}) %msg%n
+            </pattern>
         </encoder>
     </appender>
 

knockoutwhistweb/conf/routes

@@ -25,17 +25,6 @@ GET     /logout                             controllers.UserController.logout()
 
 # In-game routes
 GET         /game/:id                controllers.IngameController.game(id: String)
-POST    /game/:id/start                      controllers.IngameController.startGame(id: String)
-POST    /game/:id/kickPlayer/:playerToKick  controllers.IngameController.kickPlayer(id: String, playerToKick: String)
 
-POST    /game/:id/trump                     controllers.IngameController.playTrump(id: String)
+# Websocket
-POST    /game/:id/tie                       controllers.IngameController.playTie(id: String)
+GET         /websocket               controllers.WebsocketController.socket()
-
-GET     /game/:id/leaveGame                 controllers.IngameController.leaveGame(id: String)
-POST   /game/:id/playCard                   controllers.IngameController.playCard(id: String)
-POST   /game/:id/dogPlayCard                controllers.IngameController.playDogCard(id: String)
-
-POST   /game/:id/returnToLobby              controllers.IngameController.returnToLobby(id: String)
-
-# Polling
-GET    /polling/:gameId                     controllers.PollingController.polling(gameId: String)

knockoutwhistweb/public/javascripts/main.js

@@ -79,206 +79,6 @@
     })
 })()
 
-let polling = false;
-function pollForUpdates(gameId) {
-    if (polling) {
-        console.log("[DEBUG] Polling already in progress. Skipping this cycle.");
-        return;
-    }
-    polling = true;
-    console.log(`[DEBUG] Starting poll cycle for Game ID: ${gameId} at ${new Date().toISOString()}`);
-    if (!gameId) {
-        console.error("[DEBUG] Game ID is missing. Stopping poll.");
-        return;
-    }
-    const $handElement = $('#card-slide');
-    const $lobbyElement = $('#lobbybackground');
-    const $mainmenuElement = $('#main-menu-screen')
-    const $mainbody = $('#main-body')
-    if (!$handElement.length && !$lobbyElement.length && !$mainmenuElement.length && !$mainbody.length) {
-        setTimeout(() => { polling = false; pollForUpdates(gameId) }, 1000);
-        return;
-    }
-    const route = jsRoutes.controllers.PollingController.polling(gameId);
-    $.ajax({
-        url: route.url,
-        type: 'GET',
-        dataType: 'json',
-
-        success: (data => {
-            if (!data) {
-                console.log("[DEBUG] Received 204 No Content (Timeout). Restarting poll.");
-                return;
-            }
-            if (data.status === "cardPlayed" && data.handData) {
-                console.log("Event received: Card played. Redrawing hand.");
-                const newHand = data.handData;
-                let newHandHTML = '';
-                $handElement.empty();
-
-                if(data.animation) {
-                        $handElement.addClass('ingame-cards-slide');
-                } else {
-                    $handElement.removeClass('ingame-cards-slide');
-                }
-
-                const dog = data.dog;
-
-                newHand.forEach((cardId, index) => {
-                    const cardHtml = `
-                        <div class="col-auto handcard" style="border-radius: 6px">
-                            <div class="btn btn-outline-light p-0 border-0 shadow-none" 
-                                 data-card-id="${index}" 
-                                 style="border-radius: 6px" 
-                                 onclick="handlePlayCard(this, '${gameId}', '${dog}')">
-                                
-                                <img src="/assets/images/cards/${cardId}.png" width="120px" style="border-radius: 6px"/>
-                            </div>
-                        </div>
-                    `;
-                    newHandHTML += cardHtml;
-                });
-
-                if (dog) {
-                    newHandHTML += `
-                        <div class="mt-2">
-                            <button class="btn btn-danger" onclick="handleSkipDogLife(this, '${gameId}')">Skip Dog Life</button>
-                        </div>
-                    `;
-                }
-
-                $handElement.html(newHandHTML);
-
-                if (data.yourTurn) {
-                    $handElement.removeClass('inactive');
-                } else {
-                    $handElement.addClass('inactive');
-                }
-
-                $('#current-player-name').text(data.currentPlayerName)
-                if (data.nextPlayer) {
-                    $('#next-player-name').text(data.nextPlayer);
-                } else if (nextPlayerElement) {
-                    $('#next-player-name').text("");
-                } else {
-                    console.warn("[DEBUG] 'current-player-name' element missing in DOM");
-                }
-                    $('#trump-suit').text(data.trumpSuit);
-                if ($('#trick-cards-container').length) {
-                    let trickHTML = '';
-
-                    data.trickCards.forEach(trickCard => {
-                        trickHTML += `
-                            <div class="col-auto">
-                                <div class="card text-center shadow-sm border-0 bg-transparent" style="width: 7rem; backdrop-filter: blur(4px);">
-                                    <div class="p-2">
-                                        <img src="/assets/images/cards/${trickCard.cardId}.png" width="100%"/>
-                                    </div>
-                                    <div class="card-body p-2 bg-transparent">
-                                        <small class="fw-semibold text-secondary">${trickCard.player}</small>
-                                    </div>
-                                </div>
-                            </div>
-                        `;
-                    });
-                    $('#trick-cards-container').html(trickHTML);
-                }
-                if ($('#score-table-body').length && data.scoreTable) {
-                    let scoreHTML = '';
-                    scoreHTML += `<h4 class="fw-bold mb-3 text-black">Tricks Won</h4>
-
-                    <div class="d-flex justify-content-between score-header pb-1">
-                        <div style="width: 50%">PLAYER</div>
-                        <div style="width: 50%">TRICKS</div>
-                    </div>`
-                    data.scoreTable.forEach(score => {
-                        scoreHTML += `
-                            <div class="d-flex justify-content-between score-row pt-1">
-                                <div style="width: 50%" class="text-truncate">${score.name}</div>
-                                <div style="width: 50%">${score.tricks}</div>
-                            </div>
-                        `;
-                    });
-                    $('#score-table-body').html(scoreHTML);
-                }
-                const cardId = data.firstCardId;
-                if ($('#first-card-container').length) {
-                    let imageSrc = '';
-                    let altText = 'First Card';
-
-                    if (cardId === "BLANK") {
-                        imageSrc = "/assets/images/cards/1B.png";
-                        altText = "Blank Card";
-                    } else {
-                        imageSrc = `/assets/images/cards/${cardId}.png`;
-                    }
-
-                    const newImageHTML = `
-                        <img src="${imageSrc}" alt="${altText}" width="80px" style="border-radius: 6px"/>
-                    `;
-
-                    $('#first-card-container').html(newImageHTML);
-                }
-            } else if (data.status === "reloadEvent") {
-                console.log("[DEBUG] Reload event received. Redirecting...");
-                exchangeBody(data.content, "Knockout Whist - Ingame", data.redirectUrl);
-            }
-            else if (data.status === "lobbyUpdate") {
-                console.log("[DEBUG] Entering 'lobbyUpdate' logic.");
-                let newHtml = ''
-
-                if (data.host) {
-                    data.users.forEach(user => {
-
-                        const inner = user.self ? `<h5 class="card-title">${user.name} (You)</h5>
-                                <a href="#" class="btn btn-danger disabled" aria-disabled="true" tabindex="-1">Remove</a>`
-                            : `    <h5 class="card-title">${user.name}</h5>
-                                    <div class="btn btn-danger" onclick="removePlayer('${gameId}', '${user.id}')">Remove</div>`
-
-                        newHtml += `<div class="col-auto my-auto m-3">
-                                            <div class="card" style="width: 18rem;">
-                                                <img src="/assets/images/profile.png" alt="Profile" class="card-img-top w-50 mx-auto mt-3" />
-                                                <div class="card-body">
-                                                    ${inner}
-                                                </div>
-                                            </div>
-                                        </div>`
-                    })
-                } else {
-                    data.users.forEach(user => {
-
-                        const inner = user.self ? `<h5 class="card-title">${user.name} (You)</h5>` : `    <h5 class="card-title">${user.name}</h5>`
-
-                        newHtml += `<div class="col-auto my-auto m-3">
-                                            <div class="card" style="width: 18rem;">
-                                                <img src="/assets/images/profile.png" alt="Profile" class="card-img-top w-50 mx-auto mt-3" />
-                                                <div class="card-body">
-                                                    ${inner}
-                                                </div>
-                                            </div>
-                                        </div>`
-                    })
-                }
-                $("#players").html(newHtml);
-                $('#playerAmount').text(`Playeramount: ${data.users.length} / ${data.maxPlayers}`);
-            } else {
-                console.warn(`[DEBUG] Received unknown status: ${data.status}`);
-            }
-        }),
-        error: ((jqXHR, textStatus, errorThrown) => {
-            if (jqXHR.status >= 400) {
-                console.error(`Server error: ${jqXHR.status}, ${errorThrown}`);
-            }
-            else {
-                console.error(`Something unexpected happened while polling. ${jqXHR.status}, ${errorThrown}`)
-            }
-        }),
-        complete: (() => {
-            setTimeout(() => { polling = false; pollForUpdates(gameId) }, 200);
-        })
-    })
-}
-
 function createGameJS() {
     let lobbyName = $('#lobbyname').val();
     if ($.trim(lobbyName) === "") {
@@ -291,26 +91,6 @@ function createGameJS() {
     sendGameCreationRequest(jsonObj);
 }
 
-function backToLobby(gameId) {
-    const route = jsRoutes.controllers.IngameController.returnToLobby(gameId);
-
-    $.ajax({
-        url: route.url,
-        type: route.type,
-        contentType: 'application/json',
-        dataType: 'json',
-        error: ((jqXHR) => {
-            const errorData = JSON.parse(jqXHR.responseText);
-            if (errorData && errorData.errorMessage) {
-                alert(`${errorData.errorMessage}`);
-            } else {
-                alert(`An unexpected error occurred. Please try again. Status: ${jqXHR.status}`);
-            }
-        })
-    })
-
-}
-
 function sendGameCreationRequest(dataObject) {
     const route = jsRoutes.controllers.MainMenuController.createGame();
 
@@ -344,60 +124,6 @@ function exchangeBody(content, title = "Knockout Whist", url = null) {
     document.title = title;
 }
 
-function startGame(gameId) {
-    sendGameStartRequest(gameId)
-}
-
-function sendGameStartRequest(gameId) {
-    const route = jsRoutes.controllers.IngameController.startGame(gameId);
-
-    $.ajax({
-        url: route.url,
-        type: route.type,
-        dataType: 'json',
-        success: (data => {
-            if (data.status === 'success') {
-                window.location.href = data.redirectUrl;
-            }
-        }),
-        error: ((jqXHR) => {
-            const errorData = JSON.parse(jqXHR.responseText);
-            if (errorData && errorData.errorMessage) {
-                alert(`${errorData.errorMessage}`);
-            } else {
-                alert(`An unexpected error occurred. Please try again. Status: ${jqXHR.status}`);
-            }
-        })
-    })
-}
-function removePlayer(gameid, playersessionId) {
-    sendRemovePlayerRequest(gameid, playersessionId)
-}
-
-function sendRemovePlayerRequest(gameId, playersessionId) {
-    const route = jsRoutes.controllers.IngameController.kickPlayer(gameId, playersessionId);
-
-    $.ajax({
-        url: route.url,
-        type: route.type,
-        contentType: 'application/json',
-        dataType: 'json',
-        success: (data => {
-            if (data.status === 'success') {
-                window.location.href = data.redirectUrl;
-            }
-        }),
-        error: ((jqXHR) => {
-            const errorData = JSON.parse(jqXHR.responseText);
-            if (errorData && errorData.errorMessage) {
-                alert(`${errorData.errorMessage}`);
-            } else {
-                alert(`An unexpected error occurred. Please try again. Status: ${jqXHR.status}`);
-            }
-        })
-    })
-}
-
 function login() {
     const username = $('#username').val();
     const password = $('#password').val();
@@ -423,7 +149,7 @@ function login() {
         }),
         error: ((jqXHR) => {
             const errorData = JSON.parse(jqXHR.responseText);
-            if (errorData && errorData.errorMessage) {
+            if (errorData?.errorMessage) {
                 alert(`${errorData.errorMessage}`);
             } else {
                 alert(`An unexpected error occurred. Please try again. Status: ${jqXHR.status}`);
@@ -455,7 +181,7 @@ function joinGame() {
         }),
         error: ((jqXHR) => {
             const errorData = JSON.parse(jqXHR.responseText);
-            if (errorData && errorData.errorMessage) {
+            if (errorData?.errorMessage) {
                 alert(`${errorData.errorMessage}`);
             } else {
                 alert(`An unexpected error occurred. Please try again. Status: ${jqXHR.status}`);
@@ -482,7 +208,7 @@ function navSpa(page, title) {
         }),
         error: ((jqXHR) => {
             const errorData = JSON.parse(jqXHR.responseText);
-            if (errorData && errorData.errorMessage) {
+            if (errorData?.errorMessage) {
                 alert(`${errorData.errorMessage}`);
             } else {
                 alert(`An unexpected error occurred. Please try again. Status: ${jqXHR.status}`);
@@ -491,177 +217,3 @@ function navSpa(page, title) {
     });
     return false
 }
-
-
-function selectTie(gameId) {
-    const route = jsRoutes.controllers.IngameController.playTie(gameId);
-    const jsonObj = {
-        tie: $('#tieNumber').val()
-    };
-
-    $.ajax({
-        url: route.url,
-        type: route.type,
-        contentType: 'application/json',
-        dataType: 'json',
-        data: JSON.stringify(jsonObj),
-        error: (jqXHR => {
-            let error;
-            try {
-                error = JSON.parse(jqXHR.responseText);
-            } catch (e) {
-                console.error("Failed to parse error response:", e);
-            }
-            if (error?.errorMessage) {
-                alert(`${error.errorMessage}`);
-            } else {
-                alert('An unexpected error occurred. Please try again.');
-            }
-        })
-    })
-}
-
-function leaveGame(gameId) {
-    sendLeavePlayerRequest(gameId)
-}
-
-function sendLeavePlayerRequest(gameId) {
-    const route = jsRoutes.controllers.IngameController.leaveGame(gameId);
-    $.ajax({
-        url: route.url,
-        type: route.type,
-        dataType: 'json',
-        error: ((jqXHR) => {
-            const errorData = JSON.parse(jqXHR.responseText);
-            if (errorData && errorData.errorMessage) {
-                alert(`${errorData.errorMessage}`);
-            } else {
-                alert(`An unexpected error occurred. Please try again. Status: ${jqXHR.status}`);
-            }
-        })
-    })
-}
-
-function handleTrumpSelection(cardobject, gameId) {
-    const trumpId = cardobject.dataset.trump;
-    const jsonObj = {
-        trump: trumpId
-    }
-
-    const route = jsRoutes.controllers.IngameController.playTrump(gameId);
-
-    $.ajax({
-        url: route.url,
-        type: route.type,
-        contentType: 'application/json',
-        dataType: 'json',
-        data: JSON.stringify(jsonObj),
-        error: (jqXHR => {
-            let error;
-            try {
-                error = JSON.parse(jqXHR.responseText);
-            } catch (e) {
-                console.error("Failed to parse error response:", e);
-            }
-            if (error?.errorMessage) {
-                alert(`${error.errorMessage}`);
-            } else {
-                alert('An unexpected error occurred. Please try again.');
-            }
-        })
-    })
-}
-
-function handlePlayCard(cardobject, gameId, dog = false) {
-    const cardId = cardobject.dataset.cardId;
-    const jsonObj = {
-        cardID: cardId
-    }
-    sendPlayCardRequest(jsonObj, gameId, cardobject, dog)
-}
-
-function handleSkipDogLife(cardobject, gameId) {
-
-    const wiggleKeyframes = [
-        { transform: 'translateX(0)' },
-        { transform: 'translateX(-5px)' },
-        { transform: 'translateX(5px)' },
-        { transform: 'translateX(-5px)' },
-        { transform: 'translateX(0)' }
-    ];
-
-    const wiggleTiming = {
-        duration: 400,
-        iterations: 1,
-        easing: 'ease-in-out',
-        fill: 'forwards'
-    };
-
-    const route = jsRoutes.controllers.IngameController.playDogCard(gameId);
-
-    $.ajax({
-        url: route.url,
-        type: route.type,
-        contentType: 'application/json',
-        dataType: 'json',
-        data: JSON.stringify({
-            cardID: 'skip'
-        }),
-        error: (jqXHR => {
-            let error;
-            try {
-                error = JSON.parse(jqXHR.responseText);
-            } catch (e) {
-                console.error("Failed to parse error response:", e);
-            }
-            if (error?.errorMessage.includes("You can't skip this round!")) {
-                cardobject.parentElement.animate(wiggleKeyframes, wiggleTiming);
-            } else if (error?.errorMessage) {
-                alert(`${error.errorMessage}`);
-            } else {
-                alert('An unexpected error occurred. Please try again.');
-            }
-        })
-    })
-}
-
-function sendPlayCardRequest(jsonObj, gameId, cardobject, dog) {
-    const wiggleKeyframes = [
-        { transform: 'translateX(0)' },
-        { transform: 'translateX(-5px)' },
-        { transform: 'translateX(5px)' },
-        { transform: 'translateX(-5px)' },
-        { transform: 'translateX(0)' }
-    ];
-
-    const wiggleTiming = {
-        duration: 400,
-        iterations: 1,
-        easing: 'ease-in-out',
-        fill: 'forwards'
-    };
-    const route = dog === "true" ? jsRoutes.controllers.IngameController.playDogCard(gameId) : jsRoutes.controllers.IngameController.playCard(gameId);
-
-    $.ajax({
-        url: route.url,
-        type: route.type,
-        contentType: 'application/json',
-        dataType: 'json',
-        data: JSON.stringify(jsonObj),
-        error: (jqXHR => {
-            try {
-                error = JSON.parse(jqXHR.responseText);
-            } catch (e) {
-                console.error("Failed to parse error response:", e);
-            }
-            if (error?.errorMessage.includes("You can't play this card!")) {
-                cardobject.parentElement.animate(wiggleKeyframes, wiggleTiming);
-            } else if (error?.errorMessage) {
-                alert(`${error.errorMessage}`);
-            } else {
-                alert('An unexpected error occurred. Please try again.');
-            }
-        })
-    })
-}
-

knockoutwhistweb/public/javascripts/particles.js

@@ -159,8 +159,7 @@ var pJS = function(tag_id, params){
         if (pJS.retina_detect && window.devicePixelRatio > 1) {
             pJS.canvas.pxratio = window.devicePixelRatio;
             pJS.tmp.retina = true;
-    } 
+        } else {
-    else{
             pJS.canvas.pxratio = 1;
             pJS.tmp.retina = false;
         }
@@ -181,7 +180,6 @@ var pJS = function(tag_id, params){
     };
 
 
-
     /* ---------- pJS functions - canvas ------------ */
 
     pJS.fn.canvasInit = function () {
@@ -289,15 +287,13 @@ var pJS = function(tag_id, params){
                 }
             }
 
-    }
+        } else if (color.value == 'random') {
-    else if(color.value == 'random'){
             this.color.rgb = {
                 r: (Math.floor(Math.random() * (255 - 0 + 1)) + 0),
                 g: (Math.floor(Math.random() * (255 - 0 + 1)) + 0),
                 b: (Math.floor(Math.random() * (255 - 0 + 1)) + 0)
             }
-    }
+        } else if (typeof (color.value) == 'string') {
-    else if(typeof(color.value) == 'string'){
             this.color = color;
             this.color.rgb = hexToRgb(this.color.value);
         }
@@ -364,7 +360,6 @@ var pJS = function(tag_id, params){
         this.vy_i = this.vy;
 
 
-
         /* if shape is image */
 
         var shape_type = pJS.particles.shape.type;
@@ -393,7 +388,6 @@ var pJS = function(tag_id, params){
         }
 
 
-
     };
 
 
@@ -569,16 +563,14 @@ var pJS = function(tag_id, params){
             if (p.x - p.radius > pJS.canvas.w) {
                 p.x = new_pos.x_left;
                 p.y = Math.random() * pJS.canvas.h;
-      }
+            } else if (p.x + p.radius < 0) {
-      else if(p.x + p.radius < 0){
                 p.x = new_pos.x_right;
                 p.y = Math.random() * pJS.canvas.h;
             }
             if (p.y - p.radius > pJS.canvas.h) {
                 p.y = new_pos.y_top;
                 p.x = Math.random() * pJS.canvas.w;
-      }
+            } else if (p.y + p.radius < 0) {
-      else if(p.y + p.radius < 0){
                 p.y = new_pos.y_bottom;
                 p.x = Math.random() * pJS.canvas.w;
             }
@@ -947,10 +939,7 @@ var pJS = function(tag_id, params){
                 p.y = pos.y;
             }
 
-    }
+        } else if (pJS.interactivity.events.onclick.enable && isInArray('repulse', pJS.interactivity.events.onclick.mode)) {
-
-
-    else if(pJS.interactivity.events.onclick.enable && isInArray('repulse', pJS.interactivity.events.onclick.mode)) {
 
             if (!pJS.tmp.repulse_finish) {
                 pJS.tmp.repulse_count++;
@@ -1056,7 +1045,6 @@ var pJS = function(tag_id, params){
     };
 
 
-
     /* ---------- pJS functions - vendors ------------ */
 
     pJS.fn.vendors.eventsListeners = function () {
@@ -1078,8 +1066,7 @@ var pJS = function(tag_id, params){
                 if (pJS.interactivity.el == window) {
                     var pos_x = e.clientX,
                         pos_y = e.clientY;
-        }
+                } else {
-        else{
                     var pos_x = e.offsetX || e.clientX,
                         pos_y = e.offsetY || e.clientY;
                 }
@@ -1126,8 +1113,7 @@ var pJS = function(tag_id, params){
                             } else {
                                 if (pJS.interactivity.modes.push.particles_nb == 1) {
                                     pJS.fn.modes.pushParticles(pJS.interactivity.modes.push.particles_nb, pJS.interactivity.mouse);
-                }
+                                } else if (pJS.interactivity.modes.push.particles_nb > 1) {
-                else if(pJS.interactivity.modes.push.particles_nb > 1){
                                     pJS.fn.modes.pushParticles(pJS.interactivity.modes.push.particles_nb);
                                 }
                             }
@@ -1398,8 +1384,6 @@ var pJS = function(tag_id, params){
     };
 
 
-
-
     /* ---------- pJS - start ------------ */
 
 
@@ -1408,7 +1392,6 @@ var pJS = function(tag_id, params){
     pJS.fn.vendors.start();
 
 
-
 };
 
 /* ---------- global functions - vendors ------------ */

knockoutwhistweb/public/javascripts/websocket.js

@@ -0,0 +1,192 @@
+// javascript
+let ws = null; // will be created by connectWebSocket()
+const pending = new Map(); // id -> { resolve, reject, timer }
+const handlers = new Map(); // eventType -> handler(data) -> (value|Promise)
+
+
+let timer = null;
+
+// helper to attach message/error/close handlers to a socket
+function setupSocketHandlers(socket) {
+    socket.onmessage = (event) => {
+        console.debug("SERVER MESSAGE:", event.data);
+        let msg;
+        try {
+            msg = JSON.parse(event.data);
+        } catch (e) {
+            console.debug("Non-JSON message from server:", event.data, e);
+            return;
+        }
+
+        const id = msg.id;
+        const eventType = msg.event;
+        const status = msg.status;
+        const data = msg.data;
+
+        if (id && typeof status === "string") {
+            const entry = pending.get(id);
+            if (!entry) return;
+            clearTimeout(entry.timer);
+            pending.delete(id);
+
+            if (status === "success") {
+                entry.resolve(data === undefined ? {} : data);
+            } else {
+                entry.reject(new Error(msg.error || "Server returned error"));
+            }
+            return;
+        }
+
+        if (id && eventType) {
+            const handler = handlers.get(eventType);
+            const sendResponse = (respData) => {
+                const response = {id: id, event: eventType, data: respData === undefined ? {} : respData};
+                if (socket && socket.readyState === WebSocket.OPEN) {
+                    socket.send(JSON.stringify(response));
+                } else {
+                    console.warn("Cannot send response, websocket not open");
+                }
+            };
+
+            if (!handler) {
+                // no handler: respond with an error object in data so server can fail it
+                sendResponse({error: "No handler for event: " + eventType});
+                return;
+            }
+
+            try {
+                Promise.resolve(handler(data === undefined ? {} : data))
+                    .then(result => sendResponse(result))
+                    .catch(err => sendResponse({error: err?.message ? err.message : String(err)}));
+            } catch (err) {
+                sendResponse({error: err?.message ? err.message : String(err)});
+            }
+        }
+    };
+
+    socket.onerror = (error) => {
+        console.error("WebSocket Error:", error);
+        if (timer) clearInterval(timer);
+        for (const [id, entry] of pending.entries()) {
+            clearTimeout(entry.timer);
+            entry.reject(new Error("WebSocket error/closed"));
+            pending.delete(id);
+        }
+        if (socket.readyState === WebSocket.OPEN) socket.close(1000, "Unexpected error.");
+    };
+
+    socket.onclose = (event) => {
+        if (timer) clearInterval(timer);
+        for (const [id, entry] of pending.entries()) {
+            clearTimeout(entry.timer);
+            entry.reject(new Error("WebSocket closed"));
+            pending.delete(id);
+        }
+        if (event.wasClean) {
+            console.log(`Connection closed cleanly, code=${event.code} reason=${event.reason}`);
+        } else {
+            console.warn('Connection died unexpectedly.');
+        }
+    };
+}
+
+// connect/disconnect helpers
+function connectWebSocket(url = "ws://localhost:9000/websocket") {
+    if (ws && ws.readyState === WebSocket.OPEN) return Promise.resolve();
+    if (ws && ws.readyState === WebSocket.CONNECTING) {
+        // already connecting - return a promise that resolves on open
+        return new Promise((resolve, reject) => {
+            const prevOnOpen = ws.onopen;
+            const prevOnError = ws.onerror;
+            ws.onopen = (ev) => {
+                if (prevOnOpen) prevOnOpen(ev);
+                resolve();
+            };
+            ws.onerror = (err) => {
+                if (prevOnError) prevOnError(err);
+                reject(err);
+            };
+        });
+    }
+
+    ws = new WebSocket(url);
+    setupSocketHandlers(ws);
+
+    return new Promise((resolve, reject) => {
+        ws.onopen = () => {
+            console.log("WebSocket connection established!");
+            // start heartbeat
+            timer = setInterval(() => {
+                if (ws && ws.readyState === WebSocket.OPEN) {
+                    sendEventAndWait("ping", {}).then(
+                        () => console.debug("PING RESPONSE RECEIVED"),
+                    ).catch(
+                        (err) => console.warn("PING ERROR:", err.message),
+                    );
+                    console.debug("PING SENT");
+                }
+            }, 5000);
+            resolve();
+        };
+
+        ws.onerror = (err) => {
+            reject(err);
+        };
+    });
+}
+
+function disconnectWebSocket(code = 1000, reason = "Client disconnect") {
+    if (timer) {
+        clearInterval(timer);
+        timer = null;
+    }
+    if (ws) {
+        try {
+            ws.close(code, reason);
+        } catch (e) {
+        }
+        ws = null;
+    }
+}
+
+function sendEvent(eventType, eventData) {
+    if (!ws || ws.readyState !== WebSocket.OPEN) {
+        console.warn("WebSocket is not open. Unable to send message.");
+        return;
+    }
+    const id = Date.now().toString(36) + Math.random().toString(36).substring(2, 9);
+    const message = {id: id, event: eventType, data: eventData};
+    ws.send(JSON.stringify(message));
+    console.debug("SENT:", message);
+}
+
+function sendEventAndWait(eventType, eventData, timeoutMs = 10000) {
+    if (!ws || ws.readyState !== WebSocket.OPEN) {
+        return Promise.reject(new Error("WebSocket is not open"));
+    }
+    const id = Date.now().toString(36) + Math.random().toString(36).substring(2, 9);
+    const message = {id: id, event: eventType, data: eventData};
+    const p = new Promise((resolve, reject) => {
+        const timerId = setTimeout(() => {
+            if (pending.has(id)) {
+                pending.delete(id);
+                reject(new Error(`No response within ${timeoutMs}ms for id=${id}`));
+            }
+        }, timeoutMs);
+        pending.set(id, {resolve, reject, timer: timerId});
+    });
+    ws.send(JSON.stringify(message));
+    console.debug("SENT (await):", message);
+    return p;
+}
+
+function onEvent(eventType, handler) {
+    handlers.set(eventType, handler);
+}
+
+globalThis.sendEvent = sendEvent;
+globalThis.sendEventAndWait = sendEventAndWait;
+globalThis.onEvent = onEvent;
+globalThis.connectWebSocket = connectWebSocket;
+globalThis.disconnectWebSocket = disconnectWebSocket;
+globalThis.isWebSocketConnected = () => !!ws && ws.readyState === WebSocket.OPEN;