fix: update ui version_backend, mem usage hardware (#5932)

* fix: update ui version_backend, mem usage hardware

* chore: hidden gpu from system monitor on mac

* chore: fix gpus vram

web-app/src/providers/GlobalEventHandler.tsx

@@ -0,0 +1,54 @@
+import { useEffect } from 'react'
+import { events } from '@janhq/core'
+import { useModelProvider } from '@/hooks/useModelProvider'
+import { getProviders } from '@/services/providers'
+
+/**
+ * GlobalEventHandler handles global events that should be processed across all screens
+ * This provider should be mounted at the root level to ensure all screens can benefit from global event handling
+ */
+export function GlobalEventHandler() {
+  const { setProviders } = useModelProvider()
+
+  // Handle settingsChanged event globally
+  useEffect(() => {
+    const handleSettingsChanged = async (event: {
+      key: string
+      value: string
+    }) => {
+      console.log('Global settingsChanged event:', event)
+
+      // Handle version_backend changes specifically
+      if (event.key === 'version_backend') {
+        try {
+          // Refresh providers to get updated settings from the extension
+          const updatedProviders = await getProviders()
+          setProviders(updatedProviders)
+          console.log('Providers refreshed after version_backend change')
+        } catch (error) {
+          console.error(
+            'Failed to refresh providers after settingsChanged:',
+            error
+          )
+        }
+      }
+
+      // Add more global event handlers here as needed
+      // For example:
+      // if (event.key === 'some_other_setting') {
+      //   // Handle other setting changes
+      // }
+    }
+
+    // Subscribe to the settingsChanged event
+    events.on('settingsChanged', handleSettingsChanged)
+
+    // Cleanup subscription on unmount
+    return () => {
+      events.off('settingsChanged', handleSettingsChanged)
+    }
+  }, [setProviders])
+
+  // This component doesn't render anything
+  return null
+}

web-app/src/routes/__root.tsx

@@ -29,6 +29,7 @@ import {
 } from '@/components/ui/resizable'
 import { useCallback } from 'react'
 import GlobalError from '@/containers/GlobalError'
+import { GlobalEventHandler } from '@/providers/GlobalEventHandler'
 
 export const Route = createRootRoute({
   component: RootLayout,
@@ -162,6 +163,7 @@ function RootLayout() {
       <TranslationProvider>
         <ExtensionProvider>
           <DataProvider />
+          <GlobalEventHandler />
         </ExtensionProvider>
         {isLocalAPIServerLogsRoute ? <LogsLayout /> : <AppLayout />}
         {/* <TanStackRouterDevtools position="bottom-right" /> */}

web-app/src/routes/settings/hardware.tsx

@@ -38,6 +38,9 @@ function Hardware() {
   const llamacpp = providers.find((p) => p.provider === 'llamacpp')
 
   // Llamacpp devices hook
+  const llamacppDevicesResult = useLlamacppDevices()
+
+  // Use default values on macOS since llamacpp devices are not relevant
   const {
     devices: llamacppDevices,
     loading: llamacppDevicesLoading,
@@ -45,7 +48,16 @@ function Hardware() {
     activatedDevices,
     toggleDevice,
     fetchDevices,
-  } = useLlamacppDevices()
+  } = IS_MACOS
+    ? {
+        devices: [],
+        loading: false,
+        error: null,
+        activatedDevices: new Set(),
+        toggleDevice: () => {},
+        fetchDevices: () => {},
+      }
+    : llamacppDevicesResult
 
   // Fetch llamacpp devices when component mounts
   useEffect(() => {
@@ -296,8 +308,7 @@ function Hardware() {
                           <Progress
                             value={
                               toNumber(
-                                (hardwareData.total_memory -
-                                  systemUsage.used_memory) /
+                                systemUsage.used_memory /
                                   hardwareData.total_memory
                               ) * 100
                             }
@@ -306,8 +317,7 @@ function Hardware() {
                           <span className="text-main-view-fg/80">
                             {(
                               toNumber(
-                                (hardwareData.total_memory -
-                                  systemUsage.used_memory) /
+                                systemUsage.used_memory /
                                   hardwareData.total_memory
                               ) * 100
                             ).toFixed(2)}
@@ -365,9 +375,9 @@ function Hardware() {
                             title={t('settings:hardware.vram')}
                             actions={
                               <span className="text-main-view-fg/80">
-                                {formatMegaBytes(device.mem)}{' '}
+                                {formatMegaBytes(device.free)}{' '}
                                 {t('settings:hardware.freeOf')}{' '}
-                                {formatMegaBytes(device.free)}
+                                {formatMegaBytes(device.mem)}
                               </span>
                             }
                           />

web-app/src/routes/settings/providers/$providerName.tsx

@@ -37,7 +37,6 @@ import { IconFolderPlus, IconLoader, IconRefresh } from '@tabler/icons-react'
 import { getProviders } from '@/services/providers'
 import { toast } from 'sonner'
 import { useEffect, useState } from 'react'
-import { events } from '@janhq/core'
 import { predefinedProviders } from '@/consts/providers'
 import { useModelLoad } from '@/hooks/useModelLoad'
 import { useLlamacppDevices } from '@/hooks/useLlamacppDevices'
@@ -131,18 +130,8 @@ function ProviderDetail() {
     }
   }, [provider, needsBackendConfig])
 
-  // Listen for settingsChanged event and refresh backend list if version_backend changes
-  useEffect(() => {
-    const handler = (event: { key: string; value: string }) => {
-      if (event.key === 'version_backend') {
-        refreshSettings()
-      }
-    }
-    events.on('settingsChanged', handler)
-    return () => {
-      events.off('settingsChanged', handler)
-    }
-  }, [provider])
+  // Note: settingsChanged event is now handled globally in GlobalEventHandler
+  // This ensures all screens receive the event intermediately
 
   // Auto-refresh models for non-predefined providers
   useEffect(() => {

web-app/src/routes/system-monitor.tsx

@@ -95,10 +95,7 @@ function SystemMonitor() {
 
   // Calculate RAM usage percentage
   const ramUsagePercentage =
-    toNumber(
-      (hardwareData.total_memory - systemUsage.used_memory) /
-        hardwareData.total_memory
-    ) * 100
+    toNumber(systemUsage.used_memory / hardwareData.total_memory) * 100
 
   return (
     <div className="flex flex-col h-full bg-main-view overflow-y-auto p-6">
@@ -197,49 +194,53 @@ function SystemMonitor() {
         </div>
 
         {/* GPU Usage Card */}
-        <div className="bg-main-view-fg/2 rounded-lg p-6 shadow-sm">
-          <h2 className="text-base font-semibold text-main-view-fg mb-4">
-            {t('system-monitor:activeGpus')}
-          </h2>
-          <div className="flex flex-col gap-2">
-            {llamacppDevices.length > 0 ? (
-              llamacppDevices.map((device) => (
-                <div key={device.id} className="flex flex-col gap-1">
-                  <div className="flex justify-between items-center">
-                    <span className="text-main-view-fg/70">{device.name}</span>
-                    <span
-                      className={`text-sm px-2 py-1 rounded-md ${
-                        activatedDevices.has(device.id)
-                          ? 'bg-green-500/20 text-green-600 dark:text-green-400'
-                          : 'hidden'
-                      }`}
-                    >
-                      {activatedDevices.has(device.id)
-                        ? t('system-monitor:active')
-                        : 'Inactive'}
-                    </span>
-                  </div>
-                  <div className="flex justify-between items-center text-sm">
-                    <span className="text-main-view-fg/70">VRAM:</span>
-                    <span className="text-main-view-fg">
-                      {formatMegaBytes(device.mem)}
-                    </span>
-                  </div>
-                  <div className="flex justify-between items-center text-sm">
-                    <span className="text-main-view-fg/70">Free:</span>
-                    <span className="text-main-view-fg">
-                      {formatMegaBytes(device.free)}
-                    </span>
+        {!IS_MACOS && (
+          <div className="bg-main-view-fg/2 rounded-lg p-6 shadow-sm">
+            <h2 className="text-base font-semibold text-main-view-fg mb-4">
+              {t('system-monitor:activeGpus')}
+            </h2>
+            <div className="flex flex-col gap-2">
+              {llamacppDevices.length > 0 ? (
+                llamacppDevices.map((device) => (
+                  <div key={device.id} className="flex flex-col gap-1">
+                    <div className="flex justify-between items-center">
+                      <span className="text-main-view-fg/70">
+                        {device.name}
+                      </span>
+                      <span
+                        className={`text-sm px-2 py-1 rounded-md ${
+                          activatedDevices.has(device.id)
+                            ? 'bg-green-500/20 text-green-600 dark:text-green-400'
+                            : 'hidden'
+                        }`}
+                      >
+                        {activatedDevices.has(device.id)
+                          ? t('system-monitor:active')
+                          : 'Inactive'}
+                      </span>
+                    </div>
+                    <div className="flex justify-between items-center text-sm">
+                      <span className="text-main-view-fg/70">VRAM:</span>
+                      <span className="text-main-view-fg">
+                        {formatMegaBytes(device.mem)}
+                      </span>
+                    </div>
+                    <div className="flex justify-between items-center text-sm">
+                      <span className="text-main-view-fg/70">Free:</span>
+                      <span className="text-main-view-fg">
+                        {formatMegaBytes(device.free)}
+                      </span>
+                    </div>
                   </div>
+                ))
+              ) : (
+                <div className="text-main-view-fg/70 text-center py-4">
+                  {t('system-monitor:noGpus')}
                 </div>
-              ))
-            ) : (
-              <div className="text-main-view-fg/70 text-center py-4">
-                {t('system-monitor:noGpus')}
-              </div>
-            )}
+              )}
+            </div>
           </div>
-        </div>
+        )}
       </div>
     </div>
   )