From 3624c091028a4f4646de1db7fa45b93f4196f53a Mon Sep 17 00:00:00 2001
From: Nuwan <nuwanchaturanga@gmail.com>
Date: Sun, 8 Feb 2026 19:26:50 +0530
Subject: [PATCH] feat(20-01): add removeVuState function to useVuHelpers

- Add removeVuState callback to clean up vuStates entries
- Export removeVuState alongside updateVuState
- Uses functional setState for React state batching compatibility
- Maintains immutability by creating shallow copy before deletion

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
---
 jam-ui/src/hooks/useVuHelpers.js | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/jam-ui/src/hooks/useVuHelpers.js b/jam-ui/src/hooks/useVuHelpers.js
index 41006f227..8c2445973 100644
--- a/jam-ui/src/hooks/useVuHelpers.js
+++ b/jam-ui/src/hooks/useVuHelpers.js
@@ -103,6 +103,14 @@ export default function useVuHelpers() {
     }));
   }, []);
 
+  const removeVuState = useCallback((mixerId) => {
+    setVuStates(prev => {
+      const newState = { ...prev };
+      delete newState[mixerId];
+      return newState;
+    });
+  }, []);
+
   const updateVU3 = useCallback(
     (mixer, leftValue, leftClipping, rightValue, rightClipping) => {
       const fqId = createQualifiedId(mixer);
@@ -175,6 +183,7 @@ export default function useVuHelpers() {
     // React-like components and functions
     VuMeter: VuMeterComponent,
     updateVuState,
+    removeVuState,
     vuStates,
 
     // Legacy functions for backward compatibility