Move joinState from IndivCall to SignalCall

Signal/src/Calls/Individual/IndividualCall.swift

@@ -194,34 +194,6 @@ public class IndividualCall: NSObject {
         }
     }
 
-    /// `JoinState` is a group call concept, but we want to bridge
-    /// between the two call types.
-    /// TODO: Continue to tweak this as we unify the individual and
-    /// group call UIs.
-    var joinState: JoinState {
-        switch self.state {
-        case .idle,
-             .remoteHangup,
-             .remoteHangupNeedPermission,
-             .localHangup,
-             .remoteRinging,
-             .localRinging_Anticipatory,
-             .localRinging_ReadyToAnswer,
-             .remoteBusy,
-             .localFailure,
-             .busyElsewhere,
-             .answeredElsewhere,
-             .declinedElsewhere:
-            return .notJoined
-        case .connected,
-             .accepting,
-             .answering,
-             .reconnecting,
-             .dialing:
-            return .joined
-        }
-    }
-
     public var offerMediaType: TSRecentCallOfferType = .audio
 
     // We start out muted if the record permission isn't granted. This should generally

Signal/src/Calls/SignalCall.swift

@@ -128,7 +128,32 @@ public class SignalCall: NSObject, CallManagerCallReference {
 
     public var joinState: JoinState {
         switch mode {
-        case .individual(let call): return call.joinState
+        case .individual(let call):
+            /// `JoinState` is a group call concept, but we want to bridge
+            /// between the two call types.
+            /// TODO: Continue to tweak this as we unify the individual and
+            /// group call UIs.
+            switch call.state {
+            case .idle,
+                 .remoteHangup,
+                 .remoteHangupNeedPermission,
+                 .localHangup,
+                 .remoteRinging,
+                 .localRinging_Anticipatory,
+                 .localRinging_ReadyToAnswer,
+                 .remoteBusy,
+                 .localFailure,
+                 .busyElsewhere,
+                 .answeredElsewhere,
+                 .declinedElsewhere:
+                return .notJoined
+            case .connected,
+                 .accepting,
+                 .answering,
+                 .reconnecting,
+                 .dialing:
+                return .joined
+            }
         case .group(let call): return call.localDeviceState.joinState
         }
     }