Wip smashign providerdelgate into UIAdaptee

Signal/src/UserInterface/Notifications/CallNotificationsAdapter.swift

@@ -3,6 +3,9 @@
 
 import Foundation
 
+/**
+ * Present call related notifications to the user.
+ */
 @objc(OWSCallNotificationsAdapter)
 class CallNotificationsAdapter: NSObject {
 
@@ -10,9 +13,9 @@ class CallNotificationsAdapter: NSObject {
     let adaptee: OWSCallNotificationsAdaptee
 
     override init() {
-        // TODO We can't mix UINotification (NotificationManager) with the UNNotifications
-        // Because registering message categories in one, clobbers the notifications in the other.
-        // We have to first port *all* the existing UINotifications to UNNotifications
+        // TODO We can't mix UILocalNotification (NotificationManager) with the UNNotifications
+        // Because registering message categories in one, clobbers the registered categories from the other
+        // We have to first port *all* the existing UINotification categories to UNNotifications
         // which is a good thing to do, but in trying to limit the scope of changes that's been 
         // left out for now.
 //        if #available(iOS 10.0, *) {

Signal/src/call/Speakerbox/CallKitCallUIAdaptee.swift

@@ -3,6 +3,10 @@
 
 import Foundation
 
+/**
+ * CallKit backed implementation of UI Activity related to Signal Calls
+ * TODO: Code Cleanup: It might be more straight forward to roll this into the CallKitProviderDelegate.
+ */
 @available(iOS 10.0, *)
 class CallKitCallUIAdaptee: CallUIAdaptee {
 
@@ -13,15 +17,15 @@ class CallKitCallUIAdaptee: CallUIAdaptee {
 
     init(callService: CallService, notificationsAdapter: CallNotificationsAdapter) {
         self.callManager = CallKitCallManager()
-        self.providerDelegate = CallKitProviderDelegate(callManager: callManager, callService: callService)
+        self.providerDelegate = CallKitProviderDelegate(callService: callService, notificationsAdapter: notificationsAdapter)
         self.notificationsAdapter = notificationsAdapter
     }
 
     public func startOutgoingCall(_ call: SignalCall) {
         // Add the new outgoing call to the app's list of calls.
         // So we can find it in the provider delegate callbacks.
-        self.callManager.addCall(call)
-        providerDelegate.callManager.startCall(call)
+//        self.callManager.addCall(call)
+//        providerDelegate.callManager.startCall(call)
     }
 
     public func reportIncomingCall(_ call: SignalCall, callerName: String, audioManager: SignalCallAudioManager) {
@@ -29,15 +33,15 @@ class CallKitCallUIAdaptee: CallUIAdaptee {
         // Crux is, the peerconnectionclient is what controls the audio channel.
         // But a peerconnectionclient is per call.
         // While this providerDelegate is an app singleton.
-        providerDelegate.audioManager = audioManager
-
-        providerDelegate.reportIncomingCall(call) { error in
-            if error == nil {
-                Logger.debug("\(self.TAG) successfully reported incoming call.")
-            } else {
-                Logger.error("\(self.TAG) providerDelegate.reportIncomingCall failed with error: \(error)")
-            }
-        }
+//        providerDelegate.audioManager = audioManager
+//
+//        providerDelegate.reportIncomingCall(call) { error in
+//            if error == nil {
+//                Logger.debug("\(self.TAG) successfully reported incoming call.")
+//            } else {
+//                Logger.error("\(self.TAG) providerDelegate.reportIncomingCall failed with error: \(error)")
+//            }
+//        }
     }
 
     public func reportMissedCall(_ call: SignalCall, callerName: String) {

Signal/src/call/Speakerbox/CallKitProviderDelegate.swift

@@ -6,12 +6,19 @@ import UIKit
 import CallKit
 import AVFoundation
 
+/**
+ * Connects requests for CallKit actions (CXActions) with their corresponding consequences in CallService
+ *
+ * TODO: Code cleanup: The responsibilities largely overlap with the CallKitCallUIAdapter. Maybe they should be merged.
+ */
 @available(iOS 10.0, *)
-final class CallKitProviderDelegate: NSObject, CXProviderDelegate {
+final class CallKitProviderDelegate: NSObject, CallUIAdaptee, CXProviderDelegate {
 
     let TAG = "[CallKitProviderDelegate]"
-    let callManager: CallKitCallManager
-    let callService: CallService
+
+    private let callManager: CallKitCallManager
+    private let callService: CallService
+    internal let notificationsAdapter: CallNotificationsAdapter
     private let provider: CXProvider
 
     // FIXME - I might be thinking about this the wrong way.
@@ -22,16 +29,6 @@ final class CallKitProviderDelegate: NSObject, CXProviderDelegate {
     // It seems like a mess to reconcile this difference in cardinality. But... here we are.
     var audioManager: SignalCallAudioManager?
 
-    init(callManager: CallKitCallManager, callService: CallService) {
-        self.callService = callService
-        self.callManager = callManager
-        provider = CXProvider(configuration: type(of: self).providerConfiguration)
-
-        super.init()
-
-        provider.setDelegate(self, queue: nil)
-    }
-
     /// The app's provider configuration, representing its CallKit capabilities
     static var providerConfiguration: CXProviderConfiguration {
         let localizedName = NSLocalizedString("APPLICATION_NAME", comment: "Name of application")
@@ -52,8 +49,28 @@ final class CallKitProviderDelegate: NSObject, CXProviderDelegate {
         return providerConfiguration
     }
 
-    /// Use CXProvider to report the incoming call to the system
-    func reportIncomingCall(_ call: SignalCall, completion: ((NSError?) -> Void)? = nil) {
+    init(callService: CallService,  notificationsAdapter: CallNotificationsAdapter) {
+        self.callManager = CallKitCallManager()
+        self.callService = callService
+        self.notificationsAdapter = notificationsAdapter
+        self.provider = CXProvider(configuration: type(of: self).providerConfiguration)
+
+        super.init()
+
+        self.provider.setDelegate(self, queue: nil)
+    }
+
+    // MARK: CallUIAdaptee
+
+    internal func startOutgoingCall(_ call: SignalCall) {
+        // Add the new outgoing call to the app's list of calls.
+        // So we can find it in the provider delegate callbacks.
+        callManager.addCall(call)
+        callManager.startCall(call)
+    }
+
+    // TODO CodeCleanup: remove unused audiomanager
+    internal func reportIncomingCall(_ call: SignalCall, callerName: String, audioManager: SignalCallAudioManager) {
         // Construct a CXCallUpdate describing the incoming call, including the caller.
         let update = CXCallUpdate()
         update.remoteHandle = CXHandle(type: .phoneNumber, value: call.remotePhoneNumber)
@@ -65,14 +82,27 @@ final class CallKitProviderDelegate: NSObject, CXProviderDelegate {
              Only add incoming call to the app's list of calls if the call was allowed (i.e. there was no error)
              since calls may be "denied" for various legitimate reasons. See CXErrorCodeIncomingCallError.
              */
-            if error == nil {
-                self.callManager.addCall(call)
+            guard error == nil else {
+                Logger.error("\(self.TAG) failed to report new incoming call")
+                return
             }
 
-            completion?(error as? NSError)
+            self.callManager.addCall(call)
         }
     }
 
+    internal func answerCall(_ call: SignalCall) {
+        showCall(call)
+    }
+
+    internal func declineCall(_ call: SignalCall) {
+        callManager.end(call: call)
+    }
+
+    internal func endCall(_ call: SignalCall) {
+        callManager.end(call: call)
+    }
+
     // MARK: CXProviderDelegate
 
     func providerDidReset(_ provider: CXProvider) {

Signal/src/call/UserInterface/CallUIAdapter.swift

@@ -6,6 +6,8 @@ import PromiseKit
 import CallKit
 
 protocol CallUIAdaptee {
+    var notificationsAdapter: CallNotificationsAdapter { get }
+
     func startOutgoingCall(_ call: SignalCall)
     func reportIncomingCall(_ call: SignalCall, callerName: String, audioManager: SignalCallAudioManager)
     func reportMissedCall(_ call: SignalCall, callerName: String)
@@ -14,11 +16,16 @@ protocol CallUIAdaptee {
     func endCall(_ call: SignalCall)
 }
 
+// Shared default implementations
 extension CallUIAdaptee {
-    public func showCall(_ call: SignalCall) {
+    internal func showCall(_ call: SignalCall) {
         let callNotificationName = CallService.callServiceActiveCallNotificationName()
         NotificationCenter.default.post(name: NSNotification.Name(rawValue: callNotificationName), object: call)
     }
+
+    internal func reportMissedCall(_ call: SignalCall, callerName: String) {
+        notificationsAdapter.presentMissedCall(call, callerName: callerName)
+    }
 }
 
 /**
@@ -34,14 +41,14 @@ class CallUIAdapter {
     required init(callService: CallService, contactsManager: OWSContactsManager, notificationsAdapter: CallNotificationsAdapter) {
         self.contactsManager = contactsManager
         if Platform.isSimulator {
-            // Callkit doesn't seem entirely supported in simulator.
+            // CallKit doesn't seem entirely supported in simulator.
             // e.g. you can't receive calls in the call screen.
             // So we use the non-call kit call UI.
             Logger.info("\(TAG) choosing non-callkit adaptee for simulator.")
             adaptee = NonCallKitCallUIAdaptee(callService: callService, notificationsAdapter: notificationsAdapter)
         } else if #available(iOS 10.0, *) {
             Logger.info("\(TAG) choosing callkit adaptee for iOS10+")
-            adaptee = CallKitCallUIAdaptee(callService: callService, notificationsAdapter: notificationsAdapter)
+            adaptee = CallKitProviderDelegate(callService: callService, notificationsAdapter: notificationsAdapter)
         } else {
             Logger.info("\(TAG) choosing non-callkit adaptee for older iOS")
             adaptee = NonCallKitCallUIAdaptee(callService: callService, notificationsAdapter: notificationsAdapter)