From 9307a25a5158a2dc3d55d9cf3eaf3497e37dfc0f Mon Sep 17 00:00:00 2001
From: Jehan Monnier <jehan.monnier@linphone.org>
Date: Fri, 13 Oct 2017 16:33:38 +0200
Subject: [PATCH] Decline incoming Call when CallKit returns DND

---
 Classes/LinphoneManager.m  |  2 +-
 Classes/ProviderDelegate.h |  2 +-
 Classes/ProviderDelegate.m | 17 ++++++++++++++---
 3 files changed, 16 insertions(+), 5 deletions(-)

diff --git a/Classes/LinphoneManager.m b/Classes/LinphoneManager.m
index 2debfe0a2..fa3f3ed25 100644
--- a/Classes/LinphoneManager.m
+++ b/Classes/LinphoneManager.m
@@ -711,7 +711,7 @@ static void linphone_iphone_display_status(struct _LinphoneCore *lc, const char
 				video = ([UIApplication sharedApplication].applicationState == UIApplicationStateActive &&
 						 linphone_core_get_video_policy(LC)->automatically_accept &&
 						 linphone_call_params_video_enabled(linphone_call_get_remote_params(call)));
-				[LinphoneManager.instance.providerDelegate reportIncomingCallwithUUID:uuid handle:address video:video];
+				[LinphoneManager.instance.providerDelegate reportIncomingCall:call withUUID:uuid handle:address video:video];
 #else
 				[PhoneMainView.instance displayIncomingCall:call];
 #endif
diff --git a/Classes/ProviderDelegate.h b/Classes/ProviderDelegate.h
index 488a4316e..964aac680 100644
--- a/Classes/ProviderDelegate.h
+++ b/Classes/ProviderDelegate.h
@@ -23,7 +23,7 @@
 @property BOOL pendingCallVideo;
 @property int callKitCalls;
 
-- (void)reportIncomingCallwithUUID:(NSUUID *)uuid handle:(NSString *)handle video:(BOOL)video;
+- (void)reportIncomingCall:(LinphoneCall *) call withUUID:(NSUUID *)uuid handle:(NSString *)handle video:(BOOL)video;
 - (void)config;
 - (void)configAudioSession:(AVAudioSession *)audioSession;
 @end
diff --git a/Classes/ProviderDelegate.m b/Classes/ProviderDelegate.m
index 3479aaaee..6178d2f85 100644
--- a/Classes/ProviderDelegate.m
+++ b/Classes/ProviderDelegate.m
@@ -71,7 +71,7 @@
 	}
 }
 
-- (void)reportIncomingCallwithUUID:(NSUUID *)uuid handle:(NSString *)handle video:(BOOL)video {
+- (void)reportIncomingCall:(LinphoneCall *) call withUUID:(NSUUID *)uuid handle:(NSString *)handle video:(BOOL)video; {
 	// Create update to describe the incoming call and caller
 	CXCallUpdate *update = [[CXCallUpdate alloc] init];
 	update.remoteHandle = [[CXHandle alloc] initWithType:CXHandleTypeGeneric value:handle];
@@ -80,13 +80,24 @@
 	update.supportsGrouping = TRUE;
 	update.supportsUngrouping = TRUE;
 	update.hasVideo = video;
-
+	linphone_call_ref(call);
 	// Report incoming call to system
 	LOGD(@"CallKit: report new incoming call");
+	
 	[self.provider reportNewIncomingCallWithUUID:uuid
 										  update:update
 									  completion:^(NSError *error) {
-									  }];
+										  if (error) {
+											  LOGE(@"CallKit: cannot complete incoming call from [%@] caused by [%@]",handle,[error localizedDescription]);
+											  if (   [error code] == CXErrorCodeIncomingCallErrorFilteredByDoNotDisturb
+												  || [error code] == CXErrorCodeIncomingCallErrorFilteredByBlockList) {
+												  linphone_call_decline(call,LinphoneReasonBusy); /*to give a chance for other devices to answer*/
+											  } else {
+												  linphone_call_decline(call,LinphoneReasonUnknown);
+											  }
+										  }
+										  linphone_call_unref(call);
+										  }];
 }
 
 - (void)setPendingCall:(LinphoneCall *)pendingCall {