Fix event publishing in TipeeeStreamListener

By casting all ADTs to their ADT base type we loose the newly added
type information and because no handler listens for the
base TipeeeeStreamEventJSON in the event input the TipeeeStreamEventInput
was broken.

Author: hlxid

Diff for: src/main/scala/org/codeoverflow/chatoverflow/requirement/service/tipeeestream/TipeeestreamListener.scala

@@ -11,14 +11,12 @@ class TipeeestreamListener extends EventManager {
     val event: JSONObject = json.getJSONObject("event")
     val eventType: String = event.getString("type")
 
-    val eventOption: Option[TipeeestreamEventJSON] = Option(eventType match {
-      case "subscription" => SubscriptionEventJSON(event)
-      case "donation" => DonationEventJSON(event)
-      case "follow" => FollowEventJSON(event)
-      case _ => null // gets None if converted to an option
+    // Fire events for connector if we are looking for that type of event
+    Option(eventType match {
+      case "subscription" => call(SubscriptionEventJSON(event))
+      case "donation" => call(DonationEventJSON(event))
+      case "follow" => call(FollowEventJSON(event))
+      case _ =>
     })
-
-    if (eventOption.isDefined)
-      call(eventOption.get) // send event to connector
   }
 }