fix: update routing logic

src/PepperDash.Essentials.Core/Routing/Extensions.cs

@@ -249,7 +249,7 @@ public static (RouteDescriptor, RouteDescriptor) GetRouteToSource(this IRoutingI
             }
             // otherwise, audioVideo needs to be handled as two steps.
 
-            Debug.LogDebug(destination, "Attempting to build source route from {destinationKey} to {sourceKey} of type {type}", source.Key, signalType);
+            Debug.LogDebug(destination, "Attempting to build source route from {destinationKey} to {sourceKey} of type {type}", destination.Key, source.Key, signalType);
 
             RouteDescriptor audioRouteDescriptor;
 
@@ -374,24 +374,28 @@ public static void MapDestinationsToSources()
                     IndexTieLines();
                 }
 
-                var sinks = DeviceManager.AllDevices.OfType<IRoutingInputs>().Where(d => !(d is IRoutingInputsOutputs));
-                var sources = DeviceManager.AllDevices.OfType<IRoutingOutputs>().Where(d => !(d is IRoutingInputsOutputs));
+                var sinks = DeviceManager.AllDevices.OfType<IRoutingInputs>();
+                var sources = DeviceManager.AllDevices.OfType<IRoutingOutputs>();
 
-                foreach (var sink in sinks)
+                foreach (var sink in sinks.Where(d => !(d is IRoutingInputsOutputs)))
                 {
-                    foreach (var source in sources)
+                    foreach (var source in sources.Where(d => !(d is IRoutingInputsOutputs)))
                     {
                         foreach (var inputPort in sink.InputPorts)
                         {
                             foreach (var outputPort in source.OutputPorts)
                             {
-                                var (audioOrSingleRoute, videoRoute) = sink.GetRouteToSource(source, inputPort.Type, inputPort, outputPort);
+                                var (audioOrSingleRoute, videoRoute) = sink.GetRouteToSource(source, outputPort.Type, inputPort, outputPort);
 
                                 if (audioOrSingleRoute == null && videoRoute == null)
                                 {
                                     continue;
                                 }
 
+                                Debug.LogVerbose("AudioOrSingleRoute Found: {audioRoute}", audioOrSingleRoute);
+
+                                Debug.LogVerbose("VideoRoute Found: {videoRoute}", videoRoute);
+
                                 if (audioOrSingleRoute != null)
                                 {
                                     // Only add routes that have actual switching steps
@@ -646,6 +650,8 @@ private static bool GetRouteToSource(this IRoutingInputs destination, IRoutingOu
                 // Only the ones that are routing devices
                 var midpointTieLines = destinationTieLines.Where(t => t.SourcePort.ParentDevice is IRoutingInputsOutputs);
 
+                Debug.LogVerbose(destination, "Found {tieLineCount} tie lines to walk for {destinationKey}", midpointTieLines.Count(), destination.Key);
+
                 //Create a list for tracking already checked devices to avoid loops, if it doesn't already exist from previous iteration
                 if (alreadyCheckedDevices == null)
                     alreadyCheckedDevices = new List<IRoutingInputsOutputs>();
@@ -685,7 +691,7 @@ private static bool GetRouteToSource(this IRoutingInputs destination, IRoutingOu
 
             if (goodInputPort == null)
             {
-                Debug.LogVerbose(destination, "No route found to {0}", source.Key);
+                Debug.LogVerbose(destination, "No route found to {0} from destination {1} for type {2}", source.Key, destination.Key, signalType);
 
                 // Cache this as an impossible route
                 _impossibleRoutes.TryAdd(routeKey, 0);

src/PepperDash.Essentials.Core/Routing/RoutingFeedbackManager.cs

@@ -66,6 +66,9 @@ private void BuildMidpointSinkMap()
 
                 foreach (var midpointKey in upstreamMidpoints)
                 {
+                    if (string.IsNullOrEmpty(midpointKey))
+                        continue;
+
                     if (!midpointToSinksMap.ContainsKey(midpointKey))
                         midpointToSinksMap[midpointKey] = new HashSet<string>();
 
@@ -115,7 +118,8 @@ private void TraceUpstreamMidpoints(TieLine tieLine, HashSet<string> midpoints,
 
             if (tieLine.SourcePort.ParentDevice is IRoutingWithFeedback midpoint)
             {
-                midpoints.Add(midpoint.Key);
+                if (!string.IsNullOrEmpty(midpoint.Key))
+                    midpoints.Add(midpoint.Key);
 
                 // Find upstream TieLines connected to this midpoint's inputs
                 var midpointInputs = (midpoint as IRoutingInputs)?.InputPorts;
@@ -244,6 +248,9 @@ private void RebuildMapForSink(IRoutingSinkWithSwitchingWithInputPort sink)
             var upstreamMidpoints = GetUpstreamMidpoints(sink);
             foreach (var midpointKey in upstreamMidpoints)
             {
+                if (string.IsNullOrEmpty(midpointKey))
+                    continue;
+
                 if (!midpointToSinksMap.ContainsKey(midpointKey))
                     midpointToSinksMap[midpointKey] = new HashSet<string>();
 

src/PepperDash.Essentials.Devices.Common/VideoCodec/MockVC/MockVC.cs

@@ -21,7 +21,7 @@ namespace PepperDash.Essentials.Devices.Common.VideoCodec
     /// <summary>
     /// Represents a MockVC
     /// </summary>
-    public class MockVC : VideoCodecBase, IRoutingSource, IHasCallHistory, IHasScheduleAwareness, IHasCallFavorites, IHasDirectory, IHasCodecCameras, IHasCameraAutoMode, IHasCodecRoomPresets
+    public class MockVC : VideoCodecBase, IRoutingSource, IHasCallHistory, IHasScheduleAwareness, IHasCallFavorites, IHasDirectory, IHasCodecCameras, IHasCameraAutoMode, IHasCodecRoomPresets, IRoutingInputs
     {
         /// <summary>
         /// Gets or sets the PropertiesConfig

src/PepperDash.Essentials.Devices.Common/VideoCodec/VideoCodecBase.cs

@@ -26,7 +26,7 @@ namespace PepperDash.Essentials.Devices.Common.VideoCodec
 	/// <summary>
 	/// Base class for video codec devices
 	/// </summary>
-	public abstract class VideoCodecBase : ReconfigurableDevice, IRoutingInputsOutputs,
+	public abstract class VideoCodecBase : ReconfigurableDevice,
 		IUsageTracking, IHasDialer, IHasContentSharing, ICodecAudio, iVideoCodecInfo, IBridgeAdvanced, IHasStandbyMode
 	{
 		private const int XSigEncoding = 28591;