From edc07794412d0e98b3ef19e337f69633582e4b73 Mon Sep 17 00:00:00 2001
From: Rutherther <fandabohacek@gmail.com>
Date: Tue, 17 Jan 2023 21:42:53 +0100
Subject: [PATCH] fix(core): do not add packet responder multiple times

---
 .../Extensions/ServiceCollectionExtensions.cs              | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/Core/NosSmooth.Core/Extensions/ServiceCollectionExtensions.cs b/Core/NosSmooth.Core/Extensions/ServiceCollectionExtensions.cs
index ac8c6fa..273cf8c 100644
--- a/Core/NosSmooth.Core/Extensions/ServiceCollectionExtensions.cs
+++ b/Core/NosSmooth.Core/Extensions/ServiceCollectionExtensions.cs
@@ -91,9 +91,14 @@ public static class ServiceCollectionExtensions
         Type responderType
     )
     {
+        if (serviceCollection.Any(x => x.ImplementationType == responderType))
+        { // already added... assuming every packet responder was added even though that may not be the case.
+            return serviceCollection;
+        }
+
         if (responderType.GetInterfaces().Any(i => i == typeof(IEveryPacketResponder)))
         {
-            return serviceCollection.AddScoped(typeof(IEveryPacketResponder), responderType);
+            serviceCollection.AddScoped(typeof(IEveryPacketResponder), responderType);
         }
 
         if (!responderType.GetInterfaces().Any
-- 
2.49.0