[StreamCore] Use core WebSocket state for SFU

[ipavlidakis]

🎯 Goal

Remove the video-owned SFUConnectionState wrapper and use StreamCore.WebSocketConnectionState directly in the SFU/WebRTC path.

📝 Summary

• Deleted SFUConnectionState.
• Migrated SFUWebSocket, SFUAdapter, and WebRTC coordinator context to WebSocketConnectionState.
• Removed production and test-only state mapping glue.
• Updated affected tests for StreamCore's connected state and wrapped server errors.

🛠 Implementation

SFUWebSocket now publishes StreamCore's WebSocketConnectionState directly. SFUAdapter mirrors that state without conversion, and the joined-stage context stores WebSocketConnectionState.DisconnectionSource.

The SFU error handling now unwraps StreamCore client errors at the existing coordinator boundary instead of relying on the removed SFU-specific wrapper.

🎨 Showcase

N/A. Internal migration only.

[coderabbitai]

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch iliaspavlidakis/deduplicate-sfuconnectionstate

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[Stream-SDK-Bot]

SDK Size

title	develop	branch	diff	status
StreamVideo	10.56 MB	9.5 MB	-1083 KB	🚀
StreamVideoSwiftUI	2.47 MB	2.47 MB	0 KB	🟢
StreamVideoUIKit	2.6 MB	2.6 MB	+1 KB	🟢
StreamWebRTC	11.87 MB	11.87 MB	0 KB	🟢

[github-actions]

Public Interface

🚀 No changes affecting the public interface.

[Stream-SDK-Bot]

StreamVideo XCSize

Object	Diff (bytes)
WebRTCStateAdapter.o	-85232
ApplicationLifecycleVideoMuteAdapter.o	-68471
CallKitAlwaysAvailabilityPolicy.o	-50154
Protobuf+SelectiveEncodable.o	-46010
SFUAdapter.o	-44192

Show 184 more objects

Object	Diff (bytes)
StreamVideo.o	-37832
Errors.o	-37229
CallKitService.o	-33418
RTCPeerConnectionCoordinator.o	-32905
WebSocketClient.o	-32143
URLSessionWebSocketEngine.o	-32056
ConnectionRecoveryHandler.o	-31550
Logger.o	-24953
Call.o	-20916
StreamCallAudioRecorder.o	-19504
CallSettings.o	-18632
LocalVideoMediaAdapter.o	-14789
ReflectiveStringConvertible.o	-14567
SignalServerEvent.o	-13526
RawJSON.o	-13385
WebSocketPingController.o	-11954
LocalScreenShareMediaAdapter.o	-11379
ScreenShareCaptureHandler.o	-11264
WebRTCCoordinator+Joined.o	-10302
CallsController.o	-9896
BaseLogDestination.o	-9042
Publisher+Logger.o	-8053
ICEAdapter.o	-8016
WebRTCPermissionsAdapter.o	-7812
SFUEventAdapter.o	-7502
NoiseCancellationFilter.o	-7242
AudioBufferRenderer.o	-7184
CameraCaptureHandler.o	-6972
RTCAudioStore+AudioDeviceModuleMiddleware.o	-6862
HTTPClient.o	-6804
LocalAudioMediaAdapter.o	-6518
CallKitPushNotificationAdapter.o	-6236
StreamJsonDecoder.o	-5654
StreamVideoEnvironment.o	-5601
CoordinatorWebSocket.o	+5333
EventNotificationCenter.o	-5265
StreamCallAudioRecorder+AVAudioRecorderMiddleware.o	-5220
BackgroundTaskScheduler.o	-5100
SFUWebSocket.o	+4969
DisposableBag.o	-4967
WebRTCStatsCollector.o	-4876
BroadcastCaptureHandler.o	-4860
WebRTCStatsReporter.o	-4772
PeerConnectionFactory.o	-4735
StreamVideoCapturer.o	-4716
WebRTCAuthenticator.o	+4676
LogDestination.o	-4597
URLSessionTransport.o	-4558
WebRTCCoordinator+Joining.o	-4529
events.pb.o	+4024
EventBatcher.o	-4000
ProximityManager.o	-3870
CallCache.o	-3719
CameraFocusHandler.o	-3508
RawJSON+StreamCore.o	+3432
WebRTCTracesAdapter.o	-3303
OutgoingRingingController.o	-3254
PermissionsStore.o	-3232
WebSocketJoinTelemetryReporter.o	-2940
AudioEngineLevelNodeAdapter.o	-2903
CameraInterruptionsHandler.o	-2880
VideoCaptureSession.o	-2712
ScreenShareSession.o	-2696
BroadcastBufferReader.o	-2670
ConnectionStatus.o	-2579
CameraSystemPressureHandler.o	-2520
WebRTCCoordinator+Connecting.o	-2440
VideoEvent+ReflectiveStringConvertible.o	+2432
Publisher+TaskSink.o	-2396
WebRTCStatsAdapter.o	-2313
Call+Error.o	-2304
WebRTCCoordinator+Error.o	-2216
Call+JoiningStage.o	-2212
CallAudioSession.o	-2197
LastParticipantAutoLeavePolicy.o	-2194
OperationQueue+TaskOperations.o	-2184
WebRTCCoordinator+FastReconnecting.o	-2180
WebRTCCoordinator+Disconnected.o	-2143
Event.o	-2101
DefaultTimer.o	-2084
StreamStateMachine.o	-1960
JoinedStateTelemetryReporter.o	-1940
ThermalStateObserver.o	-1936
StreamAppStateAdapter.o	-1902
CallController.o	-1901
AudioFilter.o	-1806
ClientEventDelivery.o	-1712
WebRTCCoordinator+Migrated.o	-1676
RTCRtpTransceiverInit+Convenience.o	-1660
CallKitAdapter.o	-1658
StreamCallAudioRecorder+Logger.o	-1650
WebRTCCoordinator+Stage.o	-1626
HTTPUtils.o	-1568
StreamCore_-14BA7DE23376E301_PackageProduct	+1540
WebRTCMigrationStatusObserver.o	-1536
APIKey.o	-1488
RejectionReasonProvider.o	-1456
InternetConnection.o	+1436
PermissionStore+PushNotificationsMiddleware.o	-1420
Task+Timeout.o	-1356
StreamVideoCaptureHandler.o	-1276
SimulatorScreenCapturer.o	-1236
AVAudioConverter+Convert.o	-1224
WebRTCCoordinator+PeerConnectionPreparing.o	-1200
StoreLogger.o	-1196
WebSocketEngine.o	-1194
Call+Stage.o	-1172
CallState.o	-1163
ConsoleLogDestination.o	-1093
RTCAudioStore+AVAudioSessionReducer.o	-1088
Call+LeavingStage.o	-1071
AudioDeviceModule.o	-1025
signal.pb.o	+1012
Logger+WebRTC.o	-991
PublishOptions.o	-960
WebRTCCoordinator.o	-888
MediaAdapter.o	+860
PrefixLogFormatter.o	-854
SwiftProtobuf.o	+784
BroadcastBufferUploader.o	-732
Task+DisposableBag.o	-696
Moderation+VideoAdapter.o	-678
WebSocketClientProviding.o	-660
ICEConnectionStateAdapter.o	+656
EventMiddleware.o	-614
WSEventsMiddleware.o	+608
CallParticipant.o	-598
APIError+ReflectiveStringConvertible.o	+592
SFUEvent+StreamCore.o	+588
Call+JoinedStage.o	-544
models.pb.o	+504
APIError.o	-498
CallStatsReport.o	-464
AVAudioSessionRouteDescription+Convenience.o	-435
CallKitReconnectionPolicy.o	+423
BroadcastSampleHandler.o	-416
GeofenceSettings.o	+408
WebRTCCoordinator+Rejoining.o	-404
Call+RejectingStage.o	+376
signal.twirp.o	+375
Foundation.tbd	-372
Call+AcceptingStage.o	-368
ClientCapability.o	+368
WebRTCCoordinator+Leaving.o	-308
WebRTCCoordinator+Blocked.o	-304
WebRTCCoordinator+CleanUp.o	-300
WebRTCCoordinator+Migrating.o	-292
CoordinatorModels.o	-284
RTCMediaStream+CustomStringConvertible.o	-260
RTCTemporaryPeerConnection.o	+256
ProximityMonitor.o	+248
WebRTCEventDecoder.o	+246
BatteryStore+ObservationMiddleware.o	-208
StreamRTCPeerConnection.o	-196
RTCAudioStore+StereoPlayoutEffect.o	-196
JsonEventDecoder.o	+181
SpeakerManager.o	-180
StreamCoreLogging.o	+172
RawJSON+Double.o	-168
RTCAudioStore+InterruptionsEffect.o	-164
ClosedCaptionsAdapter.o	+164
APIHelper.o	-112
SystemEnvironment+XStreamClient.o	+112
BatteryStore+ObserverEffect.o	+108
LogFormatter.o	-105
Combine.tbd	-104
WebRTCAudioSessionWatchdog.o	-100
RTCAudioStore+Namespace.o	-96
WebRTCEvents.o	+92
BatteryStore.o	-84
StreamDeviceOrientationAdapter.o	-80
QueryCallParticipantsResponse.o	+76
Logger+ThrowingExecution.o	+76
AudioProcessingStore.o	+66
DispatchQueueExecutor.o	+64
TimerPublisher.o	+62
AVAudioSessionObserver.o	-58
RTCAudioStore+RouteChangeEffect.o	+54
StreamCallAudioRecorder+ShouldRecordMiddleware.o	+54
RTCIceCandidate+Convenience.o	+52
Moderation+Manager.o	+50
RepeatingTimer.o	-48
RTCAudioStore.o	+48
OrderedCapacityQueue.o	+44

[Stream-SDK-Bot]

StreamVideoSwiftUI XCSize

Object	Diff (bytes)
StreamPictureInPictureAdapter.o	+340
StreamCore_-14BA7DE23376E301_PackageProduct	+268
StreamVideo.tbd	-248
PictureInPictureController.o	+108
PictureInPictureVideoCallViewController.o	+108
CallViewModel.o	-88