Refactor event handling and group assignment logic

Replaced `fight.event` with `event.eventID` for consistency and improved event handling. Adjusted `setGroup` to accept `Integer` instead of `EventGroup` to simplify group assignment logic. Removed unused `event` field in `CreateEventFight` and streamlined related processing.

CommonCore/SQL/src/de/steamwar/sql/EventFight.java

@@ -153,9 +153,9 @@ public class EventFight implements Comparable<EventFight> {
         setFight.update(fight, fightID);
     }
 
-    public void setGroup(EventGroup group) {
+    public void setGroup(Integer group) {
-        setGroup.update(group.getId(), fightID);
+        setGroup.update(group, fightID);
-        this.groupId = group.getId();
+        this.groupId = group;
     }
 
     public boolean hasFinished() {

WebsiteBackend/src/de/steamwar/routes/EventFights.kt

@@ -74,7 +74,6 @@ data class UpdateEventFight(
 
 @Serializable
 data class CreateEventFight(
-    val event: Int,
     val spielmodus: String,
     val map: String,
     val blueTeam: Int,
@@ -91,6 +90,8 @@ fun Route.configureEventFightRoutes() {
             call.respond(EventFight.getEvent(event.eventID).map { ResponseEventFight(it) })
         }
         post {
+            val event = call.receiveEvent() ?: return@post
+
             val fight = call.receiveNullable<CreateEventFight>()
             if (fight == null) {
                 call.respond(HttpStatusCode.BadRequest, ResponseError("Invalid body"))
@@ -98,7 +99,7 @@ fun Route.configureEventFightRoutes() {
             }
 
             val eventFight = EventFight.create(
-                fight.event,
+                event.eventID,
                 Timestamp.from(Instant.ofEpochMilli(fight.start)),
                 fight.spielmodus,
                 fight.map,
@@ -129,9 +130,9 @@ fun Route.configureEventFightRoutes() {
 
                 if (updateFight.group != null) {
                     if (updateFight.group == -1) {
-                        fight.groupId = null
+                        fight.setGroup(null)
                     } else {
-                        fight.groupId = updateFight.group
+                        fight.setGroup(updateFight.group)
                     }
                 }