Fix wrong call id on hangup busy

Author: artemkrachulov

MatrixSDK/VoIP/MXCall.h

@@ -24,6 +24,7 @@
 
 #import "MXCallStackCall.h"
 #import "MXCallHangupEventContent.h"
+#import "MXCallInviteEventContent.h"
 
 NS_ASSUME_NONNULL_BEGIN
 
@@ -125,6 +126,12 @@ extern NSString *const kMXCallSupportsTransferringStatusDidChange;
  */
 - (void)handleCallEvent:(MXEvent *)event;
 
+/**
+ Update call id from invite content
+ 
+ @param event the call event coming from the event stream.
+ */
+- (void)updateCallId:(MXCallInviteEventContent*)invite;
 
 #pragma mark - Controls
 /**

MatrixSDK/VoIP/MXCall.m

@@ -26,7 +26,6 @@
 #import "MXSDKOptions.h"
 #import "MXEnumConstants.h"
 
-#import "MXCallInviteEventContent.h"
 #import "MXCallAnswerEventContent.h"
 #import "MXCallSelectAnswerEventContent.h"
 #import "MXCallCandidatesEventContent.h"
@@ -1102,6 +1101,10 @@ - (void)callStackCallDidConnect:(id<MXCallStackCall>)callStackCall
 
 #pragma mark - Event Handlers
 
+- (void)updateCallId:(MXCallInviteEventContent*)invite {
+  _callId = invite.callId;
+}
+
 - (void)handleCallInvite:(MXEvent *)event
 {
     MXLogDebug(@"[MXCall][%@] handleCallInvite", _callId)
@@ -1121,7 +1124,7 @@ - (void)handleCallInvite:(MXEvent *)event
         return;
     }
 
-    _callId = callInviteEventContent.callId;
+    [self updateCallId: callInviteEventContent];
     _callerId = event.sender;
     _callerName = [callManager.mxSession userWithUserId:_callerId].displayname;
     MXRoom *signalingRoom = [callManager.mxSession roomWithRoomId:event.roomId];

MatrixSDK/VoIP/MXCallManager.m

@@ -502,6 +502,8 @@ - (void)handleCallInvite:(MXEvent *)event
 
                 if (_callKitAdapter.maximumActiveCalls != -1 && runningCalls >= _callKitAdapter.maximumActiveCalls) {
 
+                  MXCallInviteEventContent* callInviteEventContent = [MXCallInviteEventContent modelFromJSON:event.content];
+                  [call updateCallId: callInviteEventContent];
                   [call hangupWithReason: MXCallHangupReasonUserBusy];
 
                   return;