Enhance SlicerIntegration and ApiServerContext for Improved Connection Handling

- Updated SlicerIntegration to check for printerId and connection status before proceeding with uploads.
- Refactored object ID handling in ApiServerContext to normalize IDs to lowercase, ensuring consistency across updates and subscriptions.
- Improved pending uploads state management in SlicerIntegration to handle non-array values gracefully.

src/components/Dashboard/Production/Printers/SlicerIntegration.jsx

@@ -18,7 +18,7 @@ const { Title } = Typography
 const SlicerIntegration = () => {
   const location = useLocation()
   const printerId = new URLSearchParams(location.search).get('printerId')
-  const { updateObject, subscribeToObjectUpdates } =
+  const { connected, updateObject, subscribeToObjectUpdates } =
     useContext(ApiServerContext)
   const receivedPendingUploadsUpdateRef = useRef(false)
 
@@ -54,7 +54,7 @@ const SlicerIntegration = () => {
   }, [objectFormState.objectData?.pendingSlicerUploads])
 
   useEffect(() => {
-    if (!printerId) {
+    if (!printerId || connected !== true) {
       return undefined
     }
 
@@ -70,14 +70,18 @@ const SlicerIntegration = () => {
         }
 
         receivedPendingUploadsUpdateRef.current = true
-        setPendingSlicerUploads(object.pendingSlicerUploads || [])
+        setPendingSlicerUploads(
+          Array.isArray(object.pendingSlicerUploads)
+            ? object.pendingSlicerUploads
+            : []
+        )
       }
     )
 
     return () => {
       if (unsubscribe) unsubscribe()
     }
-  }, [printerId, subscribeToObjectUpdates])
+  }, [connected, printerId, subscribeToObjectUpdates])
 
   useEffect(() => {
     const nextUpload = pendingSlicerUploads.find(

src/components/Dashboard/context/ApiServerContext.jsx

@@ -1000,7 +1000,7 @@ const ApiServerProvider = ({ children }) => {
 
   const handleObjectUpdate = async (data) => {
     logger.debug('Notifying object update:', data)
-    const id = data._id
+    const id = data._id == null ? data._id : String(data._id).toLowerCase()
     const objectType = data.objectType
 
     const callbacksRefKey = `${objectType}:${id}`
@@ -1176,7 +1176,8 @@ const ApiServerProvider = ({ children }) => {
   }
 
   const offObjectUpdatesEvent = useCallback((id, objectType, callback) => {
-    const callbacksRefKey = `${objectType}:${id}`
+    const normalizedId = id == null ? id : String(id).toLowerCase()
+    const callbacksRefKey = `${objectType}:${normalizedId}`
     if (!subscribedObjectUpdateCallbacksRef.current.has(callbacksRefKey)) {
       return
     }
@@ -1195,7 +1196,7 @@ const ApiServerProvider = ({ children }) => {
           'unsubscribing from object update...'
         )
         socketRef.current.emit('unsubscribeObjectUpdate', {
-          _id: id,
+          _id: normalizedId,
           objectType
         })
       }
@@ -1258,7 +1259,8 @@ const ApiServerProvider = ({ children }) => {
         return undefined
       }
 
-      const callbacksRefKey = `${objectType}:${id}`
+      const normalizedId = String(id).toLowerCase()
+      const callbacksRefKey = `${objectType}:${normalizedId}`
       if (!subscribedObjectUpdateCallbacksRef.current.has(callbacksRefKey)) {
         subscribedObjectUpdateCallbacksRef.current.set(callbacksRefKey, [])
       }
@@ -1272,18 +1274,21 @@ const ApiServerProvider = ({ children }) => {
         socket?.connected &&
         !subscribedObjectUpdateServerRef.current.has(callbacksRefKey)
       ) {
-        subscribedObjectUpdateServerRef.current.add(callbacksRefKey)
         socket.emit(
           'subscribeToObjectUpdate',
           {
-            _id: id,
+            _id: normalizedId,
             objectType
           },
           (result) => {
             if (result?.success) {
-              logger.info('Subscribed to id:', id, 'objectType:', objectType)
+              subscribedObjectUpdateServerRef.current.add(callbacksRefKey)
-            } else {
+              logger.info(
-              subscribedObjectUpdateServerRef.current.delete(callbacksRefKey)
+                'Subscribed to id:',
+                normalizedId,
+                'objectType:',
+                objectType
+              )
             }
           }
         )