Receive calling reactions support and control ux refactor.

Co-authored-by: Nicholas <nicholas@signal.org>

app/src/main/java/org/thoughtcrime/securesms/events/CallParticipant.kt

@@ -47,6 +47,14 @@ data class CallParticipant constructor(
     }
   }
 
+  fun getRecipientDisplayNameDeviceAgnostic(context: Context): String {
+    return if (recipient.isSelf) {
+      context.getString(R.string.CallParticipant__you)
+    } else {
+      recipient.getDisplayName(context)
+    }
+  }
+
   fun getShortRecipientDisplayName(context: Context): String {
     return if (recipient.isSelf && isPrimary) {
       context.getString(R.string.CallParticipant__you)

app/src/main/java/org/thoughtcrime/securesms/events/GroupCallReactionEvent.kt

@@ -0,0 +1,22 @@
+/*
+ * Copyright 2023 Signal Messenger, LLC
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+package org.thoughtcrime.securesms.events
+
+import java.util.concurrent.TimeUnit
+
+/**
+ * This is a data class to represent a reaction coming in over the wire in the format we need (mapped to a [CallParticipant]) in a way that can be easily
+ * compared across Rx streams.
+ */
+data class GroupCallReactionEvent(val sender: CallParticipant, val reaction: String, val timestamp: Long) {
+  fun getExpirationTimestamp(): Long {
+    return timestamp + TimeUnit.SECONDS.toMillis(LIFESPAN_SECONDS)
+  }
+
+  companion object {
+    const val LIFESPAN_SECONDS = 4L
+  }
+}