feat(video_calls): ios voip push handling fix

ios/Runner/AppDelegate.swift

@@ -15,6 +15,8 @@ import flutter_foreground_task
   private var voipDiagnosticsChannel: FlutterMethodChannel?
   private let voipDiagnosticsStorageKey = "EatvioVoipDiagnostics"
   private let pendingAcceptedVoipCallKey = "EatvioPendingAcceptedVoipCall"
+  private let pendingAcceptedAtKey = "eatvioAcceptedAt"
+  private let pendingAcceptedCallTtl: TimeInterval = 120
   private let voipDiagnosticsChannelName = "com.eatvioapp/voip_diagnostics"
   private let callAudioSessionChannelName = "com.eatvioapp/call_audio_session"
   private let appUrlScheme = "eatvio"
@@ -234,6 +236,26 @@ import flutter_foreground_task
     return nil
   }
 
+  private func voipBool(_ value: Any?) -> Bool? {
+    if let bool = value as? Bool {
+      return bool
+    }
+    if let number = value as? NSNumber {
+      return number.intValue != 0
+    }
+    if let text = value as? String {
+      switch text.trimmingCharacters(in: .whitespacesAndNewlines).lowercased() {
+      case "1", "true", "yes":
+        return true
+      case "0", "false", "no":
+        return false
+      default:
+        return nil
+      }
+    }
+    return nil
+  }
+
   private func conversationUuid(fromActionUrl actionUrl: String?) -> String? {
     guard
       let actionUrl = actionUrl,
@@ -282,16 +304,31 @@ import flutter_foreground_task
   }
 
   private func storePendingAcceptedCall(_ call: Call) {
-    let payload = sanitizedDiagnosticValue(call.data.toJSON()) as? [String: Any] ?? [:]
+    var payload = sanitizedDiagnosticValue(call.data.toJSON()) as? [String: Any] ?? [:]
+    payload[pendingAcceptedAtKey] = Date().timeIntervalSince1970
     UserDefaults.standard.set(payload, forKey: pendingAcceptedVoipCallKey)
   }
 
+  /// An accept that Flutter never consumed (the process died before the
+  /// scene opened) must not open the call screen on a later launch: that
+  /// screen requests a token, and the token request rings the other person.
   private func drainPendingAcceptedVoipCall() -> [String: Any]? {
     let defaults = UserDefaults.standard
-    guard let payload = defaults.dictionary(forKey: pendingAcceptedVoipCallKey) else {
+    guard var payload = defaults.dictionary(forKey: pendingAcceptedVoipCallKey) else {
       return nil
     }
     defaults.removeObject(forKey: pendingAcceptedVoipCallKey)
+    let acceptedAt = (payload.removeValue(forKey: pendingAcceptedAtKey) as? NSNumber)?.doubleValue
+    if let acceptedAt, Date().timeIntervalSince1970 - acceptedAt > pendingAcceptedCallTtl {
+      recordVoipDiagnostic(
+        "pending_accepted_call_expired",
+        data: [
+          "callKitId": payload["id"] as? String ?? "",
+          "ageSeconds": Date().timeIntervalSince1970 - acceptedAt,
+        ]
+      )
+      return nil
+    }
     return payload
   }
 
@@ -515,6 +552,13 @@ import flutter_foreground_task
         handle: conversation,
         type: 1
       )
+      // The plugin sends this payload with its "ended" event. Dart uses the
+      // marker to tell a remote end from a decline by the user.
+      var endExtra: [String: Any] = ["endedPush": true]
+      if !conversation.isEmpty {
+        endExtra["conversationUuid"] = conversation
+      }
+      endData.extra = endExtra as NSDictionary
       plugin.endCall(endData)
       releaseIncomingCallClaim(id)
     }
@@ -686,12 +730,18 @@ import flutter_foreground_task
     } else if !nameCaller.isEmpty {
       extra["counterpartName"] = nameCaller
     }
+    if let isConsultant = voipBool(dict["is_consultant"] ?? dict["isConsultant"]) {
+      extra["counterpartIsConsultant"] = isConsultant
+    }
     // Closing this report looks like a user decline. Dart must not tell the
     // backend, or the server sends another ended VoIP and the other phone
     // shows it as a new incoming call.
     if isEndedPush {
       extra["endedPush"] = true
     }
+    // An ended push with no ringing call still has to be reported. That
+    // report is closed at once, so it must not leave a trace anywhere.
+    let isPhantomEndedReport = isEndedPush && callKitIdSourceName != "active_conversation"
 
     let data = flutter_callkit_incoming.Data(
       id: id,
@@ -699,8 +749,15 @@ import flutter_foreground_task
       handle: trimmedConversationUuid.isEmpty ? nameCaller : trimmedConversationUuid,
       type: isVideo ? 1 : 0
     )
+    data.appName = "Итвио"
+    data.handleType = "generic"
+    data.supportsVideo = true
     data.duration = 45000
     data.extra = extra as NSDictionary
+    data.missedNotificationSubtitle = "Пропущенный видеозвонок"
+    data.missedNotificationCallbackText = "Перезвонить"
+    data.isShowMissedCallNotification = !isEndedPush
+    data.includesCallsInRecents = !isPhantomEndedReport
     // The plugin activates AVAudioSession itself on answer and again 1.2s
     // later. That drops the ringing UI and leaves one side silent. CallKit
     // and WebRTC own the session instead.
@@ -736,18 +793,25 @@ import flutter_foreground_task
       callKitIdSourceName: callKitIdSourceName,
       conversationUuid: conversationUuid,
       endAfterReport: isEndedPush,
+      endImmediately: isPhantomEndedReport,
       completion: completion
     )
   }
 
   /// PushKit kills the app unless every VoIP push is reported to CallKit and
   /// its completion handler runs. Both happen here, including an "ended" push.
+  ///
+  /// `endImmediately` is for an ended push that matched no ringing call. The
+  /// report is closed inside its own completion, before the incoming UI has a
+  /// chance to show. An end transaction would take one more round trip and
+  /// would also reach `onDecline`, which resets the in-app audio restart.
   private func reportVoipPushToCallKit(
     _ data: flutter_callkit_incoming.Data,
     callKitId: String,
     callKitIdSourceName: String,
     conversationUuid: String,
     endAfterReport: Bool,
+    endImmediately: Bool,
     completion: @escaping () -> Void
   ) {
     let gate = VoipPushCompletion(completion)
@@ -757,6 +821,12 @@ import flutter_foreground_task
     }
 
     let afterReport = {
+      if endAfterReport, endImmediately,
+        let plugin = SwiftFlutterCallkitIncomingPlugin.sharedInstance
+      {
+        // Reason 6 is CXCallEndedReason.remoteEnded in the plugin.
+        plugin.saveEndCall(callKitId, 6)
+      }
       if endAfterReport {
         DispatchQueue.main.async {
           self.endCallsForEndedPush(