feat: add fallback tunnel status check and improve Windows service command calls

Add fallback to tunnel_status when metrics query fails in current_metrics function, returning zero bytes with actual tunnel state. Update waitForTunnelStatus in frontend to use tunnel_status instead of tunnel_metrics for status polling and refresh metrics separately on success. Change CloseRequested window event handler to call app_handle().exit(0) instead of no-op. Replace "sc" with "sc.exe" in all Windows service command

desktop-client/src-tauri/src/lib.rs

@@ -403,11 +403,21 @@ fn current_metrics(app: &AppHandle) -> Result<TunnelMetrics, String> {
         let session = session.as_ref().ok_or_else(|| "No active session is available".to_string())?;
         session.profile_path.clone()
     };
-    tunnel_manager::metrics(app, std::path::Path::new(&profile_path)).map(|metrics| TunnelMetrics {
+    match tunnel_manager::metrics(app, std::path::Path::new(&profile_path)) {
+        Ok(metrics) => Ok(TunnelMetrics {
             active: metrics.active,
             rx_bytes: metrics.rx_bytes,
             tx_bytes: metrics.tx_bytes,
+        }),
+        Err(_) => {
+            let active = tunnel_manager::is_active(app, std::path::Path::new(&profile_path))?;
+            Ok(TunnelMetrics {
+                active,
+                rx_bytes: 0,
+                tx_bytes: 0,
             })
+        }
+    }
 }
 
 async fn sync_current_session(app: &AppHandle) -> Result<SessionState, String> {
@@ -658,7 +668,9 @@ pub fn run() {
             Ok(())
         })
         .on_window_event(|window, event| match event {
-            WindowEvent::CloseRequested { .. } => {}
+            WindowEvent::CloseRequested { .. } => {
+                window.app_handle().exit(0);
+            }
             WindowEvent::Resized(_) => {
                 if window.is_minimized().unwrap_or(false) {
                     hide_main_window(window);

desktop-client/src/App.tsx

@@ -87,8 +87,15 @@ export function App() {
       const value = await invoke<TunnelMetrics>("tunnel_metrics");
       setMetrics(value);
       setConnected(value.active);
+    } catch {
+      try {
+        const active = await invoke<boolean>("tunnel_status");
+        setConnected(active);
+        setMetrics((current) => ({ ...current, active }));
       } catch {
         setMetrics({ active: false, rxBytes: 0, txBytes: 0 });
+        setConnected(false);
+      }
     }
   }
 
@@ -122,15 +129,16 @@ export function App() {
   async function waitForTunnelStatus(expected: boolean) {
     for (let attempt = 0; attempt < 8; attempt += 1) {
       try {
-        const value = await invoke<TunnelMetrics>("tunnel_metrics");
+        const active = await invoke<boolean>("tunnel_status");
-        setMetrics(value);
+        setConnected(active);
-        setConnected(value.active);
+        if (active === expected) {
-        if (value.active === expected) {
+          await refreshTunnelMetrics();
-          return value.active;
+          return active;
         }
       } catch {
         if (!expected) {
           setMetrics({ active: false, rxBytes: 0, txBytes: 0 });
+          setConnected(false);
           return false;
         }
       }
@@ -138,11 +146,11 @@ export function App() {
       await new Promise((resolve) => window.setTimeout(resolve, 500));
     }
 
-    return invoke<TunnelMetrics>("tunnel_metrics")
+    return invoke<boolean>("tunnel_status")
-      .then((value) => {
+      .then(async (active) => {
-        setMetrics(value);
+        setConnected(active);
-        setConnected(value.active);
+        await refreshTunnelMetrics();
-        return value.active;
+        return active;
       })
       .catch(() => false);
   }

desktop-client/tunnel-helper/src/main.rs

@@ -479,7 +479,7 @@ fn connect_to_service() -> Result<TcpStream, String> {
 
 #[cfg(target_os = "windows")]
 fn start_windows_service() -> Result<(), String> {
-    let status = Command::new("sc")
+    let status = Command::new("sc.exe")
         .arg("start")
         .arg(SERVICE_NAME)
         .creation_flags(CREATE_NO_WINDOW)
@@ -610,7 +610,7 @@ fn tunnel_service_is_active(profile: &Path) -> Result<bool, String> {
     {
         let tunnel_name = tunnel_name(profile)?;
         let service_name = format!("WireGuardTunnel${}", tunnel_name);
-        let output = Command::new("sc")
+        let output = Command::new("sc.exe")
             .arg("query")
             .arg(&service_name)
             .creation_flags(CREATE_NO_WINDOW)
@@ -659,7 +659,7 @@ fn describe_windows_tunnel_state(profile: &Path) -> String {
         Err(err) => return err,
     };
     let service_name = format!("WireGuardTunnel${}", tunnel_name);
-    let output = Command::new("sc")
+    let output = Command::new("sc.exe")
         .arg("query")
         .arg(&service_name)
         .creation_flags(CREATE_NO_WINDOW)