Migrate call proto wrappers.

Signal/src/Signal-Bridging-Header.h

@@ -82,7 +82,6 @@
 #import <SignalServiceKit/OWSAsserts.h>
 #import <SignalServiceKit/OWSAttachmentsProcessor.h>
 #import <SignalServiceKit/OWSBackgroundTask.h>
-#import <SignalServiceKit/OWSCallBusyMessage.h>
 #import <SignalServiceKit/OWSCallMessageHandler.h>
 #import <SignalServiceKit/OWSContactsOutputStream.h>
 #import <SignalServiceKit/OWSDispatch.h>

Signal/src/ViewControllers/DebugUI/DebugUICalling.swift

@@ -37,7 +37,7 @@ class DebugUICalling: DebugUIPage {
                     hangupBuilder.setId(kFakeCallId)
                     hangupMessage = try hangupBuilder.build()
                 } catch {
-                    Logger.error("\(strongSelf.logTag) could not build proto")
+                    owsFail("\(strongSelf.logTag) could not build proto")
                     return
                 }
                 let callMessage = OWSOutgoingCallMessage(thread: thread, hangupMessage: hangupMessage)
@@ -52,7 +52,16 @@ class DebugUICalling: DebugUIPage {
                 guard let strongSelf = self else { return }
 
                 let kFakeCallId = UInt64(12345)
-                let busyMessage = OWSCallBusyMessage(callId: kFakeCallId)
+                var busyMessage: SSKProtoCallMessageBusy
+                do {
+                    let busyBuilder = SSKProtoCallMessageBusy.SSKProtoCallMessageBusyBuilder()
+                    busyBuilder.setId(kFakeCallId)
+                    busyMessage = try busyBuilder.build()
+                } catch {
+                    owsFail("Couldn't build proto in \(#function)")
+                    return
+                }
+
                 let callMessage = OWSOutgoingCallMessage(thread: thread, busyMessage: busyMessage)
 
                 strongSelf.messageSender.sendPromise(message: callMessage).then {

Signal/src/call/CallService.swift

@@ -546,12 +546,19 @@ private class SignalCallData: NSObject {
         Logger.info("\(self.logTag) \(#function) for call: \(call.identifiersForLogs) thread: \(call.thread.contactIdentifier())")
         SwiftAssertIsOnMainThread(#function)
 
-        let busyMessage = OWSCallBusyMessage(callId: call.signalingId)
-        let callMessage = OWSOutgoingCallMessage(thread: call.thread, busyMessage: busyMessage)
-        let sendPromise = messageSender.sendPromise(message: callMessage)
-        sendPromise.retainUntilComplete()
+        do {
+            let busyBuilder = SSKProtoCallMessageBusy.SSKProtoCallMessageBusyBuilder()
+            busyBuilder.setId(call.signalingId)
+            let busyMessage = try busyBuilder.build()
+
+            let callMessage = OWSOutgoingCallMessage(thread: call.thread, busyMessage: busyMessage)
+            let sendPromise = messageSender.sendPromise(message: callMessage)
+            sendPromise.retainUntilComplete()
 
-        handleMissedCall(call)
+            handleMissedCall(call)
+        } catch {
+            owsFail("Couldn't build proto in \(#function)")
+        }
     }
 
     /**

SignalServiceKit/src/Messages/OWSCallBusyMessage.h

@@ -1,24 +0,0 @@
-//
-//  Copyright (c) 2018 Open Whisper Systems. All rights reserved.
-//
-
-#import "OWSOutgoingCallMessage.h"
-
-NS_ASSUME_NONNULL_BEGIN
-
-@class SSKProtoCallMessageBusy;
-
-/**
- * Sent by the call recipient after receiving a call offer when they are already in a call.
- */
-@interface OWSCallBusyMessage : OWSOutgoingCallMessage
-
-- (instancetype)initWithCallId:(UInt64)callId;
-
-@property (nonatomic, readonly) UInt64 callId;
-
-- (nullable SSKProtoCallMessageBusy *)asProtobuf;
-
-@end
-
-NS_ASSUME_NONNULL_END

SignalServiceKit/src/Messages/OWSCallBusyMessage.m

@@ -1,41 +0,0 @@
-//
-//  Copyright (c) 2018 Open Whisper Systems. All rights reserved.
-//
-
-#import "OWSCallBusyMessage.h"
-#import <SignalServiceKit/SignalServiceKit-Swift.h>
-
-NS_ASSUME_NONNULL_BEGIN
-
-@implementation OWSCallBusyMessage
-
-- (instancetype)initWithCallId:(UInt64)callId
-{
-    self = [super init];
-    if (!self) {
-        return self;
-    }
-
-    _callId = callId;
-
-    return self;
-}
-
-- (nullable SSKProtoCallMessageBusy *)asProtobuf
-{
-    SSKProtoCallMessageBusyBuilder *builder = [SSKProtoCallMessageBusyBuilder new];
-
-    builder.id = self.callId;
-    
-    NSError *error;
-    SSKProtoCallMessageBusy *_Nullable result = [builder buildAndReturnError:&error];
-    if (error || !result) {
-        OWSFail(@"%@ could not build protobuf: %@", self.logTag, error);
-        return nil;
-    }
-    return result;
-}
-
-@end
-
-NS_ASSUME_NONNULL_END

SignalServiceKit/src/Messages/OWSOutgoingCallMessage.h

@@ -6,8 +6,8 @@
 
 NS_ASSUME_NONNULL_BEGIN
 
-@class OWSCallBusyMessage;
 @class SSKProtoCallMessageAnswer;
+@class SSKProtoCallMessageBusy;
 @class SSKProtoCallMessageHangup;
 @class SSKProtoCallMessageIceUpdate;
 @class SSKProtoCallMessageOffer;
@@ -35,13 +35,13 @@ NS_ASSUME_NONNULL_BEGIN
 - (instancetype)initWithThread:(TSThread *)thread
              iceUpdateMessages:(NSArray<SSKProtoCallMessageIceUpdate *> *)iceUpdateMessage;
 - (instancetype)initWithThread:(TSThread *)thread hangupMessage:(SSKProtoCallMessageHangup *)hangupMessage;
-- (instancetype)initWithThread:(TSThread *)thread busyMessage:(OWSCallBusyMessage *)busyMessage;
+- (instancetype)initWithThread:(TSThread *)thread busyMessage:(SSKProtoCallMessageBusy *)busyMessage;
 
 @property (nullable, nonatomic, readonly) SSKProtoCallMessageOffer *offerMessage;
 @property (nullable, nonatomic, readonly) SSKProtoCallMessageAnswer *answerMessage;
 @property (nullable, nonatomic, readonly) NSArray<SSKProtoCallMessageIceUpdate *> *iceUpdateMessages;
 @property (nullable, nonatomic, readonly) SSKProtoCallMessageHangup *hangupMessage;
-@property (nullable, nonatomic, readonly) OWSCallBusyMessage *busyMessage;
+@property (nullable, nonatomic, readonly) SSKProtoCallMessageBusy *busyMessage;
 
 @end
 

SignalServiceKit/src/Messages/OWSOutgoingCallMessage.m

@@ -4,7 +4,6 @@
 
 #import "OWSOutgoingCallMessage.h"
 #import "NSDate+OWS.h"
-#import "OWSCallBusyMessage.h"
 #import "ProtoUtils.h"
 #import "SignalRecipient.h"
 #import "TSContactThread.h"
@@ -96,7 +95,7 @@ NS_ASSUME_NONNULL_BEGIN
     return self;
 }
 
-- (instancetype)initWithThread:(TSThread *)thread busyMessage:(OWSCallBusyMessage *)busyMessage
+- (instancetype)initWithThread:(TSThread *)thread busyMessage:(SSKProtoCallMessageBusy *)busyMessage
 {
     self = [self initWithThread:thread];
     if (!self) {
@@ -159,11 +158,7 @@ NS_ASSUME_NONNULL_BEGIN
     }
 
     if (self.busyMessage) {
-        SSKProtoCallMessageBusy *_Nullable proto = [self.busyMessage asProtobuf];
-        if (!proto) {
-            return nil;
-        }
-        [builder setBusy:proto];
+        [builder setBusy:self.busyMessage];
     }
 
     [ProtoUtils addLocalProfileKeyIfNecessary:self.thread recipientId:recipientId callMessageBuilder:builder];