From 7c36933c06ca36adcd095315eacec46b5b703d8b Mon Sep 17 00:00:00 2001
From: gamer147 <gamer147@gmail.com>
Date: Wed, 3 Jun 2026 14:04:58 -0400
Subject: [PATCH] refactor(battle-node): extract InitNetworkHandler

---
 SVSim.BattleNode/Sessions/BattleSession.cs    |  6 +++++-
 .../Dispatch/Handlers/InitNetworkHandler.cs   | 20 +++++++++++++++++++
 2 files changed, 25 insertions(+), 1 deletion(-)
 create mode 100644 SVSim.BattleNode/Sessions/Dispatch/Handlers/InitNetworkHandler.cs

diff --git a/SVSim.BattleNode/Sessions/BattleSession.cs b/SVSim.BattleNode/Sessions/BattleSession.cs
index 9fb66bc..808437e 100644
--- a/SVSim.BattleNode/Sessions/BattleSession.cs
+++ b/SVSim.BattleNode/Sessions/BattleSession.cs
@@ -3,6 +3,7 @@ using SVSim.BattleNode.Lifecycle;
 using SVSim.BattleNode.Protocol;
 using SVSim.BattleNode.Protocol.Bodies;
 using SVSim.BattleNode.Sessions.Dispatch;
+using SVSim.BattleNode.Sessions.Dispatch.Handlers;
 using SVSim.BattleNode.Sessions.Participants;
 
 namespace SVSim.BattleNode.Sessions;
@@ -33,7 +34,10 @@ public sealed class BattleSession
     // Per-URI handlers consulted before the legacy switch. Populated incrementally (Tasks 5-14);
     // each registered URI is served by its handler and its legacy switch arm goes dead.
     private static readonly IReadOnlyDictionary<NetworkBattleUri, IFrameHandler> Handlers =
-        new Dictionary<NetworkBattleUri, IFrameHandler>();
+        new Dictionary<NetworkBattleUri, IFrameHandler>
+        {
+            [NetworkBattleUri.InitNetwork] = new InitNetworkHandler(),
+        };
 
     private FrameDispatchContext BuildContext(IBattleParticipant from, MsgEnvelope env) =>
         new()
diff --git a/SVSim.BattleNode/Sessions/Dispatch/Handlers/InitNetworkHandler.cs b/SVSim.BattleNode/Sessions/Dispatch/Handlers/InitNetworkHandler.cs
new file mode 100644
index 0000000..f3d8661
--- /dev/null
+++ b/SVSim.BattleNode/Sessions/Dispatch/Handlers/InitNetworkHandler.cs
@@ -0,0 +1,20 @@
+using SVSim.BattleNode.Lifecycle;
+using SVSim.BattleNode.Protocol;
+
+namespace SVSim.BattleNode.Sessions.Dispatch.Handlers;
+
+internal sealed class InitNetworkHandler : IFrameHandler
+{
+    public IReadOnlyList<DispatchRoute> Handle(FrameDispatchContext ctx)
+    {
+        if (ctx.SenderPhase != BattleSessionPhase.AwaitingInitNetwork)
+            return Array.Empty<DispatchRoute>();
+
+        var routes = new List<DispatchRoute>
+        {
+            new(ctx.From, BattleFrames.BuildAck(NetworkBattleUri.InitNetwork), true),
+        };
+        ctx.SenderPhase = BattleSessionPhase.AwaitingInitBattle;
+        return routes;
+    }
+}