feat(api): Implemented card played event via websocket (#85)

Reviewed-on: #85
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/util/mapper/CardPlayedEventMapper.scala

@@ -0,0 +1,20 @@
+package util.mapper
+
+import de.knockoutwhist.events.global.CardPlayedEvent
+import model.sessions.UserSession
+import play.api.libs.json.{JsArray, JsObject, Json}
+import util.WebUIUtils
+
+object CardPlayedEventMapper extends SimpleEventMapper[CardPlayedEvent]{
+
+  override def id: String = "CardPlayedEvent"
+
+  override def toJson(event: CardPlayedEvent, session: UserSession): JsObject = {
+    Json.obj(
+      "firstCard" -> (if (event.trick.firstCard.isDefined) WebUIUtils.cardtoString(event.trick.firstCard.get) else "BLANK"),
+      "playedCards" -> JsArray(event.trick.cards.map { case (card, player) =>
+        Json.obj("cardId" -> WebUIUtils.cardtoString(card), "player" -> player.name)
+      }.toList)
+    )
+  }
+}