Use VoiceBroadcastEvent wrapper

Author: Florian Renaud

vector/src/main/java/im/vector/app/features/home/room/detail/timeline/helper/TimelineEventsGroups.kt

@@ -18,8 +18,8 @@ package im.vector.app.features.home.room.detail.timeline.helper
 
 import im.vector.app.core.utils.TextUtils
 import im.vector.app.features.voicebroadcast.STATE_ROOM_VOICE_BROADCAST_INFO
-import im.vector.app.features.voicebroadcast.model.MessageVoiceBroadcastInfoContent
 import im.vector.app.features.voicebroadcast.model.VoiceBroadcastState
+import im.vector.app.features.voicebroadcast.model.asVoiceBroadcastEvent
 import org.matrix.android.sdk.api.extensions.orFalse
 import org.matrix.android.sdk.api.session.events.model.EventType
 import org.matrix.android.sdk.api.session.events.model.toModel
@@ -59,12 +59,7 @@ class TimelineEventsGroups {
         val content = root.getClearContent()
         return when {
             EventType.isCallEvent(type) -> (content?.get("call_id") as? String)
-            type == STATE_ROOM_VOICE_BROADCAST_INFO -> {
-                root.content.toModel<MessageVoiceBroadcastInfoContent>()
-                        ?.takeUnless { it.voiceBroadcastState == VoiceBroadcastState.STARTED }
-                        ?.relatesTo?.eventId
-                        ?: eventId
-            }
+            type == STATE_ROOM_VOICE_BROADCAST_INFO -> root.asVoiceBroadcastEvent()?.reference?.eventId
             type == EventType.STATE_ROOM_WIDGET || type == EventType.STATE_ROOM_WIDGET_LEGACY -> root.stateKey
             else -> {
                 null
@@ -140,8 +135,7 @@ class CallSignalingEventsGroup(private val group: TimelineEventsGroup) {
 
 class VoiceBroadcastEventsGroup(private val group: TimelineEventsGroup) {
     fun getLastEvent(): TimelineEvent {
-        return group.events
-                .find { it.root.getClearContent().toModel<MessageVoiceBroadcastInfoContent>()?.voiceBroadcastState == VoiceBroadcastState.STOPPED }
+        return group.events.find { it.root.asVoiceBroadcastEvent()?.content?.voiceBroadcastState == VoiceBroadcastState.STOPPED }
                 ?: group.events.maxBy { it.root.originServerTs ?: 0L }
     }
 }