Fix crash when disabling lighthouse control for users without bluetoo…

…th adapters

CHANGELOG.md

@@ -7,6 +7,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+### Fixed
+- Crash for some users without bluetooth adapters when disabling lighthouse control.
+
 ## [1.11.2]
 
 ### Added

src-core/src/lighthouse/mod.rs

@@ -68,7 +68,13 @@ pub async fn init() {
 pub async fn start_scan(duration: Duration) {
     // Get the adapter
     let adapter_guard = ADAPTER.lock().await;
-    let adapter = adapter_guard.as_ref().unwrap();
+    let adapter = match adapter_guard.as_ref() {
+        Some(adapter) => adapter,
+        None => {
+            // No bluetooth adapter was found, we stop here
+            return;
+        }
+    };
     // Wait until the adapter is available
     if let Err(e) = adapter.wait_available().await {
         warn!(
@@ -381,10 +387,11 @@ async fn reset() {
     // Disconnect all devices
     {
         let adapter_guard = ADAPTER.lock().await;
-        let adapter = adapter_guard.as_ref().unwrap();
-        let devices_guard = LIGHTHOUSE_DEVICES.lock().await;
-        for device in devices_guard.iter() {
-            let _ = adapter.disconnect_device(&device).await;
+        if let Some(adapter) = adapter_guard.as_ref() {
+            let devices_guard = LIGHTHOUSE_DEVICES.lock().await;
+            for device in devices_guard.iter() {
+                let _ = adapter.disconnect_device(&device).await;
+            }
         }
     }
     // Clear all known devices

src-ui/app/app.component.ts

@@ -4,7 +4,7 @@ import { routeAnimations } from './app-routing.module';
 import { TranslateService } from '@ngx-translate/core';
 import { AppSettingsService } from './services/app-settings.service';
 import { takeUntilDestroyed } from '@angular/core/rxjs-interop';
-import { distinctUntilChanged, map, skip } from 'rxjs';
+import { debounceTime, distinctUntilChanged, map, skip, tap } from 'rxjs';
 import { fade } from './utils/animations';
 import { TelemetryService } from './services/telemetry.service';
 
@@ -27,12 +27,12 @@ export class AppComponent implements OnInit {
       .pipe(
         takeUntilDestroyed(),
         map((settings) => settings.userLanguage),
-        distinctUntilChanged()
+        distinctUntilChanged(),
+        tap((userLanguage) => translate.use(userLanguage)),
+        debounceTime(10000),
+        tap((userLanguage) => this.telemetry.trackEvent('use_language', { language: userLanguage }))
       )
-      .subscribe((userLanguage) => {
-        translate.use(userLanguage);
-        this.telemetry.trackEvent('use_language', { language: userLanguage });
-      });
+      .subscribe();
     // Snowverlay
     this.settings.settings
       .pipe(