feat: BAC-27 Implemented endpoint which returns information about the current state (#103)

Reviewed-on: #103
Reviewed-by: lq64 <lq@blackhole.local>
Co-authored-by: Janis <janis.e.20@gmx.de>
Co-committed-by: Janis <janis.e.20@gmx.de>

knockoutwhistweb/app/controllers/StatusController.scala

@@ -0,0 +1,94 @@
+package controllers
+
+import auth.AuthAction
+import logic.PodManager
+import logic.game.GameLobby
+import logic.user.SessionManager
+import model.users.User
+import play.api.libs.json.{JsValue, Json}
+import play.api.mvc.*
+import util.WebsocketEventMapper
+
+import javax.inject.Inject
+
+class StatusController @Inject()(
+                                  val controllerComponents: ControllerComponents,
+                                  val sessionManager: SessionManager,
+                                  val authAction: AuthAction
+                                ) extends BaseController {
+
+  def requestStatus(): Action[AnyContent] = {
+    Action { implicit request =>
+      val userOpt = getUserFromSession(request)
+      if (userOpt.isEmpty) {
+        Ok(
+          Json.obj(
+            "status" -> "unauthenticated"
+          )
+        )
+      } else {
+        val user = userOpt.get
+        val gameOpt = PodManager.identifyGameOfUser(user)
+        if (gameOpt.isEmpty) {
+          Ok(
+            Json.obj(
+              "status" -> "authenticated",
+              "username" -> user.name,
+              "inGame" -> "false"
+            )
+          )
+        } else {
+          val game = gameOpt.get
+          Ok(
+            Json.obj(
+              "status" -> "authenticated",
+              "username" -> user.name,
+              "inGame" -> "true",
+              "gameId" -> game.id
+            )
+          )
+        }
+      }
+    }
+  }
+
+  def game(gameId: String): Action[AnyContent] = {
+    Action { implicit request =>
+    val userOpt = getUserFromSession(request)
+    if (userOpt.isEmpty) {
+      Unauthorized("User not authenticated")
+    } else {
+      val user = userOpt.get
+      val gameOpt = PodManager.getGame(gameId)
+      if (gameOpt.isEmpty) {
+        NotFound("Game not found")
+      } else {
+        val game = gameOpt.get
+        if (!game.getPlayers.contains(user.id)) {
+          Forbidden("User not part of this game")
+        } else {
+          Ok(
+            Json.obj(
+              "gameId" -> game.id,
+              "state" -> game.logic.getCurrentState.toString,
+              "data" -> mapGameState(game, user) 
+            )
+          )
+        }
+      }
+    }
+  }}
+
+  private def getUserFromSession(request: RequestHeader): Option[User] = {
+    val session = request.cookies.get("sessionId")
+    if (session.isDefined)
+      return sessionManager.getUserBySession(session.get.value)
+    None
+  }
+  
+  private def mapGameState(gameLobby: GameLobby, user: User): JsValue = {
+    val userSession = gameLobby.getUserSession(user.id)
+    WebsocketEventMapper.stateToJson(userSession)
+  }
+
+}

knockoutwhistweb/app/util/WebsocketEventMapper.scala

@@ -57,12 +57,12 @@ object WebsocketEventMapper {
     Json.obj(
       "id" -> ("request-" + java.util.UUID.randomUUID().toString),
       "event" -> obj.id,
-      "state" -> toJson(session),
+      "state" -> stateToJson(session),
       "data" -> data
     )
   }
 
-  def toJson(session: UserSession): JsValue = {
+  def stateToJson(session: UserSession): JsValue = {
     session.gameLobby.getLogic.getCurrentState match {
       case Lobby => Json.toJson(LobbyInfoDTO(session.gameLobby, session.user))
       case InGame => Json.toJson(GameInfoDTO(session.gameLobby, session.user))

knockoutwhistweb/conf/routes

@@ -27,4 +27,8 @@ GET         /logout                  controllers.UserController.logout()
 GET         /game/:id                controllers.IngameController.game(id: String)
 
 # Websocket
-GET         /websocket               controllers.WebsocketController.socket()
+GET         /websocket               controllers.WebsocketController.socket()
+
+# Status
+GET         /status                  controllers.StatusController.requestStatus()
+GET         /status/:gameId          controllers.StatusController.game(gameId: String)