fix(ui): show BT restart notice after settings change

pkg/download/downloader.go

@@ -2405,9 +2405,7 @@ func (d *Downloader) doStart(task *Task) (err error) {
 				return err
 			}
 		}
-		if err := d.triggerOnStart(task); err != nil {
-			return err
-		}
+		d.triggerOnStart(task)
 		if !d.taskIsRunningGeneration(task, generation) {
 			return nil
 		}

pkg/download/engine/cancellation_test.go

@@ -1,47 +0,0 @@
-package engine
-
-import (
-	"context"
-	"errors"
-	"github.com/dop251/goja"
-	"testing"
-	"time"
-)
-
-func TestCloseUnblocksPendingPromise(t *testing.T) {
-	e := NewEngine(nil)
-	entered := make(chan struct{})
-	_, err := e.runOnLoop(func(r *goja.Runtime) (goja.Value, error) {
-		return goja.Undefined(), r.Set("entered", func() { close(entered) })
-	})
-	if err != nil {
-		t.Fatal(err)
-	}
-	done := make(chan error, 1)
-	go func() { _, err := e.RunString(`entered(); new Promise(()=>{});`); done <- err }()
-	select {
-	case <-entered:
-	case <-time.After(time.Second):
-		t.Fatal("script did not enter")
-	}
-	e.Close()
-	select {
-	case err := <-done:
-		if err == nil {
-			t.Fatal("closed execution returned success")
-		}
-	case <-time.After(300 * time.Millisecond):
-		t.Fatal("Engine.Close left the Promise waiter blocked")
-	}
-}
-
-func TestExecutionDeadlineInterruptsSynchronousScript(t *testing.T) {
-	e := NewEngine(nil)
-	defer e.Close()
-	ctx, cancel := context.WithTimeout(context.Background(), 30*time.Millisecond)
-	defer cancel()
-	_, err := e.RunStringContext(ctx, `while (true) {}`)
-	if !errors.Is(err, context.DeadlineExceeded) {
-		t.Fatalf("got %v, want deadline exceeded", err)
-	}
-}

pkg/download/engine/engine.go

@@ -1,7 +1,6 @@
 package engine
 
 import (
-	"context"
 	_ "embed"
 	"errors"
 	"fmt"
@@ -27,7 +26,6 @@ var polyfillScript string
 
 type Engine struct {
 	loop *eventloop.EventLoop
-	done chan struct{}
 
 	closeOnce sync.Once
 	cleanupMu sync.Mutex
@@ -41,13 +39,7 @@ type JSFunction func(goja.FunctionCall) goja.Value
 // RunString executes the script and returns the go type value
 // if script result is promise, it will be resolved
 func (e *Engine) RunString(script string) (value any, err error) {
-	return e.RunStringContext(context.Background(), script)
-}
-
-// RunStringContext bounds an execution, including awaited promises. Cancelling
-// an execution closes its engine so outstanding operations cannot outlive it.
-func (e *Engine) RunStringContext(ctx context.Context, script string) (any, error) {
-	return e.runOnLoopContext(ctx, func(runtime *goja.Runtime) (goja.Value, error) {
+	return e.runOnLoop(func(runtime *goja.Runtime) (goja.Value, error) {
 		return runtime.RunString(script)
 	})
 }
@@ -55,11 +47,7 @@ func (e *Engine) RunStringContext(ctx context.Context, script string) (any, erro
 // CallFunction calls the function and returns the go type value
 // if function result is promise, it will be resolved
 func (e *Engine) CallFunction(fn any, args ...any) (value any, err error) {
-	return e.CallFunctionContext(context.Background(), fn, args...)
-}
-
-func (e *Engine) CallFunctionContext(ctx context.Context, fn any, args ...any) (value any, err error) {
-	return e.runOnLoopContext(ctx, func(runtime *goja.Runtime) (goja.Value, error) {
+	return e.runOnLoop(func(runtime *goja.Runtime) (goja.Value, error) {
 		var jsArgs []goja.Value
 		for _, arg := range args {
 			jsArgs = append(jsArgs, runtime.ToValue(arg))
@@ -81,20 +69,6 @@ func (e *Engine) CallFunctionContext(ctx context.Context, fn any, args ...any) (
 }
 
 func (e *Engine) runOnLoop(fn func(runtime *goja.Runtime) (goja.Value, error)) (any, error) {
-	return e.runOnLoopContext(context.Background(), fn)
-}
-
-var ErrClosed = errors.New("engine closed")
-
-func (e *Engine) runOnLoopContext(ctx context.Context, fn func(runtime *goja.Runtime) (goja.Value, error)) (any, error) {
-	if err := ctx.Err(); err != nil {
-		return nil, err
-	}
-	select {
-	case <-e.done:
-		return nil, ErrClosed
-	default:
-	}
 	type result struct {
 		value any
 		err   error
@@ -158,31 +132,15 @@ func (e *Engine) runOnLoopContext(ctx context.Context, fn func(runtime *goja.Run
 	if !ok {
 		return nil, errors.New("engine loop terminated")
 	}
-	select {
-	case res := <-ch:
-		return res.value, res.err
-	case <-ctx.Done():
-		// Interrupt synchronous JS too; a select alone only stops Promise waiting.
-		e.Close()
-		return nil, ctx.Err()
-	case <-e.done:
-		return nil, ErrClosed
+	res := <-ch
+	if res.err != nil {
+		return nil, res.err
 	}
+	return res.value, nil
 }
 
 func (e *Engine) Close() {
 	e.closeOnce.Do(func() {
-		close(e.done)
-		e.Runtime.Interrupt(ErrClosed)
-		// Wait for interrupted JS to leave the loop, then allow cleanup hooks
-		// to execute their JS cancellation callbacks before terminating it.
-		cleared := make(chan struct{})
-		if e.loop.RunOnLoop(func(runtime *goja.Runtime) {
-			runtime.ClearInterrupt()
-			close(cleared)
-		}) {
-			<-cleared
-		}
 		e.cleanupMu.Lock()
 		cleanups := e.cleanups
 		e.cleanups = nil
@@ -219,7 +177,6 @@ func NewEngine(cfg *Config) *Engine {
 	loop := eventloop.NewEventLoop()
 	engine := &Engine{
 		loop: loop,
-		done: make(chan struct{}),
 	}
 	loop.Start()
 	done := make(chan struct{})

pkg/download/extension.go

@@ -3,7 +3,6 @@ package download
 import (
 	"context"
 	"encoding/json"
-	"errors"
 	"fmt"
 	"io"
 	"net/url"
@@ -328,8 +327,8 @@ func (d *Downloader) triggerOnResolve(req *base.Request) (res *base.Resource, er
 	return
 }
 
-func (d *Downloader) triggerOnStart(task *Task) error {
-	return doTrigger(d,
+func (d *Downloader) triggerOnStart(task *Task) {
+	doTrigger(d,
 		EventOnStart,
 		task.Meta.Req,
 		&OnStartContext{
@@ -414,13 +413,6 @@ func doTrigger[T any](d *Downloader, event ActivationEvent, req *base.Request, c
 					}
 					engine, session := d.newExtensionEngine()
 					defer session.CloseIfIdle()
-					eventCtx, cancelEvent := context.WithTimeout(d.backgroundCtx, d.cfg.ExtensionEventTimeout)
-					defer cancelEvent()
-					defer func() {
-						if eventCtx.Err() != nil {
-							session.Close()
-						}
-					}()
 					gopeed.Runtime = &InstanceRuntime{
 						WebView: d.newExtensionWebViewRuntime(session, ext.buildIdentity()),
 					}
@@ -429,13 +421,13 @@ func doTrigger[T any](d *Downloader, event ActivationEvent, req *base.Request, c
 						gopeed.Logger.logger.Error().Err(err).Msgf("[%s] engine inject failed", ext.buildIdentity())
 						return
 					}
-					_, err = engine.RunStringContext(eventCtx, string(scriptBuf))
+					_, err = engine.RunString(string(scriptBuf))
 					if err != nil {
 						gopeed.Logger.logger.Error().Err(err).Msgf("[%s] run script failed", ext.buildIdentity())
 						return
 					}
 					if fn, ok := gopeed.Events[event]; ok {
-						_, err = engine.CallFunctionContext(eventCtx, fn, ctx)
+						_, err = engine.CallFunction(fn, ctx)
 						if err != nil {
 							gopeed.Logger.logger.Error().Err(err).Msgf("[%s] call function failed: %s", ext.buildIdentity(), event)
 							return
@@ -445,9 +437,6 @@ func doTrigger[T any](d *Downloader, event ActivationEvent, req *base.Request, c
 						}
 					}
 				}()
-				if errors.Is(err, context.Canceled) || errors.Is(err, context.DeadlineExceeded) {
-					return err
-				}
 			}
 		}
 	}

pkg/download/extension_cancellation_test.go

@@ -1,149 +0,0 @@
-package download
-
-import (
-	"context"
-	"errors"
-	"fmt"
-	"net/http"
-	"net/http/httptest"
-	"os"
-	"path/filepath"
-	"sync"
-	"testing"
-	"time"
-
-	"github.com/GopeedLab/gopeed/internal/fetcher"
-	"github.com/GopeedLab/gopeed/pkg/base"
-)
-
-func installCancellationExtension(t *testing.T, d *Downloader, event, script string) {
-	t.Helper()
-	dir := t.TempDir()
-	manifest := fmt.Sprintf(`{"name":"cancel-%s","author":"test","title":"Cancel","version":"1.0.0","scripts":[{"event":%q,"match":{"urls":["*://example.com/*"]},"entry":"index.js"}]}`, event, event)
-	for name, body := range map[string]string{"manifest.json": manifest, "index.js": script} {
-		if err := os.WriteFile(filepath.Join(dir, name), []byte(body), 0600); err != nil {
-			t.Fatal(err)
-		}
-	}
-	if _, err := d.InstallExtensionByFolder(dir, true); err != nil {
-		t.Fatal(err)
-	}
-}
-func newCancellationDownloader(t *testing.T) *Downloader {
-	t.Helper()
-	d := NewDownloader(&DownloaderConfig{Storage: NewMemStorage(), StorageDir: t.TempDir(), TempDir: t.TempDir(), FetchManagers: []fetcher.FetcherManager{&generationTestManager{holdOpen: true}}})
-	if err := d.Setup(); err != nil {
-		t.Fatal(err)
-	}
-	return d
-}
-func TestResolveExtensionStopsOnShutdown(t *testing.T) {
-	entered, release := make(chan struct{}), make(chan struct{})
-	var once sync.Once
-	defer once.Do(func() { close(release) })
-	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		close(entered)
-		select {
-		case <-release:
-		case <-r.Context().Done():
-		}
-		w.Write([]byte("ok"))
-	}))
-	defer server.Close()
-	d := newCancellationDownloader(t)
-	defer d.Close()
-	installCancellationExtension(t, d, "onResolve", fmt.Sprintf(`gopeed.events.onResolve(async ctx=>{await fetch(%q);});`, server.URL))
-	done := make(chan error, 1)
-	go func() { _, err := d.Resolve(&base.Request{URL: "https://example.com/cancel"}); done <- err }()
-	select {
-	case <-entered:
-	case <-time.After(2 * time.Second):
-		t.Fatal("handler did not enter")
-	}
-	if err := d.Close(); err != nil {
-		t.Fatal(err)
-	}
-	select {
-	case err := <-done:
-		if !errors.Is(err, context.Canceled) {
-			t.Errorf("got %v, want cancellation", err)
-		}
-	case <-time.After(300 * time.Millisecond):
-		once.Do(func() { close(release) })
-		t.Fatal("shutdown did not cancel extension Resolve")
-	}
-}
-func TestOnErrorCancellationReleasesTaskAPIs(t *testing.T) {
-	entered, release := make(chan struct{}), make(chan struct{})
-	var once sync.Once
-	defer once.Do(func() { close(release) })
-	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		close(entered)
-		select {
-		case <-release:
-		case <-r.Context().Done():
-		}
-		w.Write([]byte("ok"))
-	}))
-	defer server.Close()
-	d := newCancellationDownloader(t)
-	defer d.Close()
-	parent, cancel := context.WithCancel(d.backgroundCtx)
-	d.backgroundCtx = parent
-	defer cancel()
-	installCancellationExtension(t, d, "onError", fmt.Sprintf(`gopeed.events.onError(async ctx=>{await fetch(%q);});`, server.URL))
-	d.cfg.MaxRunning = 0
-	id, err := d.CreateDirect(&base.Request{URL: "generation://example.com/task"}, &base.Options{Path: t.TempDir()})
-	if err != nil {
-		t.Fatal(err)
-	}
-	task := d.GetTask(id)
-	task.statusLock.Lock()
-	task.Status = base.DownloadStatusRunning
-	task.statusLock.Unlock()
-	handled := make(chan struct{})
-	go func() { d.doOnError(task, errors.New("source failed")); close(handled) }()
-	select {
-	case <-entered:
-	case <-time.After(2 * time.Second):
-		t.Fatal("onError did not enter")
-	}
-	status, stats := make(chan struct{}), make(chan struct{})
-	go func() { d.RuntimeStatus(id); close(status) }()
-	go func() { d.Stats(id); close(stats) }()
-	cancel()
-	for name, ch := range map[string]<-chan struct{}{"onError": handled, "RuntimeStatus": status, "Stats": stats} {
-		select {
-		case <-ch:
-		case <-time.After(300 * time.Millisecond):
-			once.Do(func() { close(release) })
-			<-handled
-			t.Fatalf("%s stayed blocked after cancellation", name)
-		}
-	}
-}
-
-func TestExtensionEventDeadlineRejectsUnsettledResolve(t *testing.T) {
-	d := newCancellationDownloader(t)
-	defer d.Close()
-	d.cfg.ExtensionEventTimeout = 30 * time.Millisecond
-	installCancellationExtension(t, d, "onResolve", `gopeed.events.onResolve(async ctx=>{await new Promise(()=>{});});`)
-	_, err := d.Resolve(&base.Request{URL: "https://example.com/timeout"})
-	if !errors.Is(err, context.DeadlineExceeded) {
-		t.Fatalf("got %v, want event deadline exceeded", err)
-	}
-}
-func TestExtensionStartDeadlinePreventsFetcherStart(t *testing.T) {
-	d := newCancellationDownloader(t)
-	defer d.Close()
-	d.cfg.ExtensionEventTimeout = 30 * time.Millisecond
-	installCancellationExtension(t, d, "onStart", `gopeed.events.onStart(async ctx=>{await new Promise(()=>{});});`)
-	id, err := d.CreateDirect(&base.Request{URL: "generation://example.com/timeout"}, &base.Options{Path: t.TempDir()})
-	if err != nil {
-		t.Fatal(err)
-	}
-	waitForTaskStatus(t, d, id, base.DownloadStatusError, 2*time.Second)
-	if starts := d.cfg.FetchManagers[0].(*generationTestManager).starts.Load(); starts != 0 {
-		t.Fatalf("timed out onStart still started fetcher %d times", starts)
-	}
-}

pkg/download/extension_engine_session.go

@@ -59,21 +59,6 @@ func (s *engineSession) Release() {
 	}
 }
 
-// Close releases retained resources when the owning event is cancelled.
-func (s *engineSession) Close() {
-	s.mu.Lock()
-	if s.closed {
-		s.mu.Unlock()
-		return
-	}
-	s.closed = true
-	s.mu.Unlock()
-	s.runClosers()
-	if s.engine != nil {
-		s.engine.Close()
-	}
-}
-
 func (s *engineSession) CloseIfIdle() {
 	s.mu.Lock()
 	shouldClose := s.refs == 0 && !s.closed

pkg/download/model.go

@@ -232,15 +232,12 @@ type DownloaderConfig struct {
 	Controller    *controller.Controller
 	FetchManagers []fetcher.FetcherManager
 
-	// ExtensionEventTimeout bounds one script load and its awaited event handler.
-	// Zero uses one minute. Embedders may increase it for long-running handlers.
-	ExtensionEventTimeout time.Duration
-	RefreshInterval       int // RefreshInterval time duration to refresh task progress(ms)
-	Storage               Storage
-	StorageDir            string
-	TempDir               string
-	WhiteDownloadDirs     []string
-	WebViewProvider       enginewebview.Provider
+	RefreshInterval   int // RefreshInterval time duration to refresh task progress(ms)
+	Storage           Storage
+	StorageDir        string
+	TempDir           string
+	WhiteDownloadDirs []string
+	WebViewProvider   enginewebview.Provider
 
 	ProductionMode bool
 
@@ -263,9 +260,6 @@ func (cfg *DownloaderConfig) Init() *DownloaderConfig {
 			new(ed2k.FetcherManager),
 		}
 	}
-	if cfg.ExtensionEventTimeout <= 0 {
-		cfg.ExtensionEventTimeout = time.Minute
-	}
 	if cfg.RefreshInterval == 0 {
 		cfg.RefreshInterval = 350
 	}

ui/flutter/lib/app/application/app_runtime_controller.dart

@@ -53,6 +53,7 @@ class AppRuntimeState {
 class AppRuntimeController extends AsyncNotifier<AppRuntimeState> {
   static StartConfig? _defaultStartConfig;
   Future<void> _preferenceWrites = Future<void>.value();
+  bool _analyticsStarted = false;
 
   @override
   Future<AppRuntimeState> build() async {
@@ -73,6 +74,7 @@ class AppRuntimeController extends AsyncNotifier<AppRuntimeState> {
       startConfig
         ..apiEnable = true
         ..mcpEnable = config.api.mcpEnable;
+      await _initAnalytics(config);
     } else {
       startConfig
         ..apiEnable = config.api.enable
@@ -253,7 +255,8 @@ class AppRuntimeController extends AsyncNotifier<AppRuntimeState> {
   }
 
   Future<void> _initAnalytics(DownloaderConfig config) async {
-    if (!AnalyticsConfig.isConfigured || !config.extra.analyticsEnabled) return;
+    if (_analyticsStarted || !AnalyticsConfig.isConfigured || !config.extra.analyticsEnabled) return;
+    _analyticsStarted = true;
     try {
       final generatedClientId = await Analytics.instance.init(fallbackClientId: config.extra.deviceId);
       if (generatedClientId != null) {
@@ -262,6 +265,7 @@ class AppRuntimeController extends AsyncNotifier<AppRuntimeState> {
       }
       unawaited(Analytics.instance.logAppOpen());
     } catch (error, stackTrace) {
+      _analyticsStarted = false;
       logger.w('GA4 init failed', error, stackTrace);
     }
   }

ui/flutter/lib/app/application/downloader_config_init.dart

@@ -19,7 +19,7 @@ Future<DownloaderConfig> loadDownloaderConfig({
     config = await load();
   } catch (error, stackTrace) {
     onLoadError?.call(error, stackTrace);
-    config = DownloaderConfig();
+    config = DownloaderConfig()..extra.analyticsEnabled = false;
     loaded = false;
   }
   final changed = await initDownloaderConfig(config, defaultDownloadDir: defaultDownloadDir);

ui/flutter/lib/features/settings/application/settings_controller.dart

@@ -19,6 +19,12 @@ class SettingsState {
   }
 }
 
+class SettingsSaveResult {
+  const SettingsSaveResult({required this.btRestartRequired});
+
+  final bool btRestartRequired;
+}
+
 class SettingsController extends AsyncNotifier<SettingsState> {
   Future<void> _saveTail = Future<void>.value();
   int _saveRevision = 0;
@@ -36,7 +42,7 @@ class SettingsController extends AsyncNotifier<SettingsState> {
     state = AsyncValue.data(SettingsState(config: config));
   }
 
-  Future<void> save(DownloaderConfig config) {
+  Future<SettingsSaveResult> save(DownloaderConfig config) {
     final snapshot = DownloaderConfig.fromJson(config.toJson());
     final revision = ++_saveRevision;
     state = AsyncValue.data(SettingsState(config: config, saving: true));
@@ -47,10 +53,15 @@ class SettingsController extends AsyncNotifier<SettingsState> {
     return result;
   }
 
-  Future<void> _save(DownloaderConfig config, int revision) async {
+  Future<SettingsSaveResult> _save(DownloaderConfig config, int revision) async {
     try {
       final service = ref.read(gopeedServiceProvider);
       final latest = await service.getConfig();
+      final previousBt = (
+        latest.protocolConfig.bt.listenPort,
+        latest.protocolConfig.bt.disableDht,
+        latest.protocolConfig.bt.disablePex,
+      );
       config.extra
         ..windowState = latest.extra.windowState
         ..bookmarks = latest.extra.bookmarks
@@ -64,6 +75,12 @@ class SettingsController extends AsyncNotifier<SettingsState> {
         ref.read(appRuntimeControllerProvider.notifier).replaceDownloaderConfig(saved);
         if (revision == _saveRevision) state = AsyncValue.data(SettingsState(config: saved));
       }
+      final savedBt = (
+        saved.protocolConfig.bt.listenPort,
+        saved.protocolConfig.bt.disableDht,
+        saved.protocolConfig.bt.disablePex,
+      );
+      return SettingsSaveResult(btRestartRequired: previousBt != savedBt);
     } finally {
       if (ref.mounted && revision == _saveRevision && state.value?.saving == true) {
         state = AsyncValue.data(state.requireValue.copyWith(saving: false));

ui/flutter/lib/features/settings/presentation/pages/settings_page.dart

@@ -625,7 +625,6 @@ class _SettingsPageState extends ConsumerState<SettingsPage> {
                   ),
                   SettingsItem(
                     title: context.l10n.enableDht,
-                    subtitle: context.l10n.restartRequired,
                     child: shad.Switch(
                       value: !config.protocolConfig.bt.disableDht,
                       onChanged: (value) => _mutateConfig((next) => next.protocolConfig.bt.disableDht = !value),
@@ -633,7 +632,6 @@ class _SettingsPageState extends ConsumerState<SettingsPage> {
                   ),
                   SettingsItem(
                     title: context.l10n.enablePex,
-                    subtitle: context.l10n.restartRequired,
                     child: shad.Switch(
                       value: !config.protocolConfig.bt.disablePex,
                       onChanged: (value) => _mutateConfig((next) => next.protocolConfig.bt.disablePex = !value),
@@ -1204,7 +1202,10 @@ class _SettingsPageState extends ConsumerState<SettingsPage> {
     final snapshot = DownloaderConfig.fromJson(config.toJson());
     _loadedSignature = _signature(snapshot);
     try {
-      await ref.read(settingsControllerProvider.notifier).save(snapshot);
+      final result = await ref.read(settingsControllerProvider.notifier).save(snapshot);
+      if (mounted && result.btRestartRequired) {
+        _toast(context.l10n.restartRequired, type: AppToastType.info);
+      }
       return true;
     } catch (error) {
       if (mounted) _toast(error.toString());

ui/flutter/lib/features/tasks/presentation/pages/create_task_window_page.dart

@@ -41,6 +41,7 @@ import '../../application/pending_download.dart';
 import '../../application/task_list_navigation.dart';
 import '../widgets/history_search_field.dart';
 import '../widgets/create_task_action_buttons.dart';
+import '../widgets/create_task_advanced_toggle.dart';
 import '../widgets/resolve_download_dialog.dart';
 
 class CreateTaskWindowPage extends ConsumerStatefulWidget {
@@ -560,20 +561,11 @@ class _CreateTaskWindowPageState extends ConsumerState<CreateTaskWindowPage> {
                     ),
                     const SizedBox(height: 20),
                     Align(
-                      alignment: Alignment.centerLeft,
-                      child: GestureDetector(
-                        onTap: _toggleAdvanced,
-                        child: Row(
-                          mainAxisSize: MainAxisSize.min,
-                          children: [
-                            Text(
-                              context.l10n.advanced,
-                              style: TextStyle(color: palette.textPrimary, fontSize: 14, fontWeight: FontWeight.w600),
-                            ),
-                            const SizedBox(width: 8),
-                            _TripleChevronIcon(expanded: _showAdvanced, color: palette.textSecondary),
-                          ],
-                        ),
+                      alignment: AlignmentDirectional.centerStart,
+                      child: CreateTaskAdvancedToggle(
+                        key: const ValueKey('create-task-advanced-toggle'),
+                        expanded: _showAdvanced,
+                        onPressed: _toggleAdvanced,
                       ),
                     ),
                     AnimatedCrossFade(
@@ -1933,30 +1925,6 @@ class _MiniInputAction extends StatelessWidget {
   }
 }
 
-class _TripleChevronIcon extends StatelessWidget {
-  const _TripleChevronIcon({required this.expanded, required this.color});
-
-  final bool expanded;
-  final Color color;
-
-  @override
-  Widget build(BuildContext context) {
-    final icon = expanded ? Icons.expand_less : Icons.expand_more;
-    return SizedBox(
-      width: 14,
-      height: 18,
-      child: Stack(
-        clipBehavior: Clip.none,
-        children: [
-          Positioned(top: 0, left: 0, child: Icon(icon, size: 14, color: color)),
-          Positioned(top: 4, left: 0, child: Icon(icon, size: 14, color: color)),
-          Positioned(top: 8, left: 0, child: Icon(icon, size: 14, color: color)),
-        ],
-      ),
-    );
-  }
-}
-
 class _SegmentButton extends StatelessWidget {
   const _SegmentButton({required this.label, required this.active, required this.onTap});
 

ui/flutter/lib/features/tasks/presentation/widgets/create_task_advanced_toggle.dart

@@ -0,0 +1,49 @@
+import 'package:shadcn_flutter/shadcn_flutter.dart';
+
+import '../../../../l10n/l10n.dart';
+import '../../../../shared/theme/app_design_tokens.dart';
+import '../../../../shared/theme/app_palette.dart';
+
+/// A quiet disclosure control with the same keyboard behavior as other buttons.
+class CreateTaskAdvancedToggle extends StatelessWidget {
+  const CreateTaskAdvancedToggle({super.key, required this.expanded, required this.onPressed});
+
+  final bool expanded;
+  final VoidCallback onPressed;
+
+  @override
+  Widget build(BuildContext context) {
+    final palette = AppPalette.of(context);
+    final reduceMotion = MediaQuery.disableAnimationsOf(context);
+    return Semantics(
+      expanded: expanded,
+      child: ButtonStyleOverride.inherit(
+        padding: (context, states, value) => const EdgeInsets.symmetric(vertical: AppDesignTokens.space12),
+        child: GhostButton(
+          onPressed: onPressed,
+          child: ConstrainedBox(
+            constraints: const BoxConstraints(minHeight: 20),
+            child: Row(
+              mainAxisSize: MainAxisSize.min,
+              children: [
+                Flexible(
+                  child: Text(
+                    context.l10n.advanced,
+                    style: TextStyle(color: palette.textPrimary, fontSize: 14, fontWeight: FontWeight.w600),
+                  ),
+                ),
+                const SizedBox(width: AppDesignTokens.space8),
+                AnimatedRotation(
+                  turns: expanded ? 0.5 : 0,
+                  duration: reduceMotion ? Duration.zero : const Duration(milliseconds: 180),
+                  curve: Curves.easeOutCubic,
+                  child: Icon(Icons.keyboard_arrow_down, size: 16, color: palette.textSecondary),
+                ),
+              ],
+            ),
+          ),
+        ),
+      ),
+    );
+  }
+}

ui/flutter/lib/l10n/app_ar.arb

@@ -208,7 +208,7 @@
   "categoryName": "اسم الفئة",
   "categoryPath": "مسار الفئة",
   "autoCategorizeByExtension": "تصنيف تلقائي حسب نوع الملف",
-  "autoCategorizeByExtensionDescription": "توجيه التنزيلات إلى مجلد الفئة تلقائيًا حسب امتداد الملف عند الحفظ في مجلد التنزيل الافتراضي.",
+  "autoCategorizeByExtensionDescription": "توجيه التنزيلات إلى مجلد الفئة تلقائيًا حسب امتداد الملف عند الحفظ في مجلد التنزيل الافتراضي",
   "categoryExtensions": "امتدادات الملفات",
   "categoryExtensionsUsageHint": "افصل الامتدادات بفواصل أو مسافات ثم اضغط Enter.",
   "categoryExtensionsEmptyHint": "بدون الامتدادات، لن تُحفظ الملفات في هذا التصنيف تلقائيًا.",

ui/flutter/lib/l10n/app_az.arb

@@ -215,7 +215,7 @@
   "categoryName": "Kateqoriyanın Adı",
   "categoryPath": "Kateqoriyanın Yolu",
   "autoCategorizeByExtension": "Fayl tipinə görə avtomatik kateqoriyalaşdırma",
-  "autoCategorizeByExtensionDescription": "Standart yükləmə qovluğuna yadda saxlanarkən yükləmələr fayl uzantısına görə avtomatik olaraq kateqoriya qovluğuna yönləndirilir.",
+  "autoCategorizeByExtensionDescription": "Standart yükləmə qovluğuna yadda saxlanarkən yükləmələr fayl uzantısına görə avtomatik olaraq kateqoriya qovluğuna yönləndirilir",
   "categoryExtensions": "Fayl uzantıları",
   "categoryExtensionsUsageHint": "Uzantıları vergül və ya boşluqla ayırın, sonra Enter-a basın.",
   "categoryExtensionsEmptyHint": "Uzantı yoxdursa, fayllar bu kateqoriyaya avtomatik olaraq saxlanmır.",

ui/flutter/lib/l10n/app_ca.arb

@@ -208,7 +208,7 @@
   "categoryName": "Nom de la categoria",
   "categoryPath": "Ruta de la categoria",
   "autoCategorizeByExtension": "Categoritza automàticament segons el tipus de fitxer",
-  "autoCategorizeByExtensionDescription": "Les baixades es desen a la carpeta de categoria segons l'extensió del fitxer en utilitzar la carpeta de baixades predeterminada.",
+  "autoCategorizeByExtensionDescription": "Les baixades es desen a la carpeta de categoria segons l'extensió del fitxer en utilitzar la carpeta de baixades predeterminada",
   "categoryExtensions": "Extensions de fitxer",
   "categoryExtensionsUsageHint": "Separa les extensions amb comes o espais i prem Retorn.",
   "categoryExtensionsEmptyHint": "Sense extensions, els fitxers no es desaran aquí automàticament.",

ui/flutter/lib/l10n/app_de.arb

@@ -208,7 +208,7 @@
   "categoryName": "Kategoriename",
   "categoryPath": "Kategoriepfad",
   "autoCategorizeByExtension": "Nach Dateityp automatisch kategorisieren",
-  "autoCategorizeByExtensionDescription": "Downloads werden beim Speichern im Standard-Download-Ordner anhand der Dateiendung automatisch einem Kategorieordner zugeordnet.",
+  "autoCategorizeByExtensionDescription": "Downloads werden beim Speichern im Standard-Download-Ordner anhand der Dateiendung automatisch einem Kategorieordner zugeordnet",
   "categoryExtensions": "Dateiendungen",
   "categoryExtensionsUsageHint": "Trenne Endungen mit Kommas oder Leerzeichen und drücke Enter.",
   "categoryExtensionsEmptyHint": "Ohne Endungen werden Dateien nicht automatisch dieser Kategorie zugeordnet.",

ui/flutter/lib/l10n/app_en.arb

@@ -222,7 +222,7 @@
   "categoryName": "Category Name",
   "categoryPath": "Category Path",
   "autoCategorizeByExtension": "Auto-categorize by file type",
-  "autoCategorizeByExtensionDescription": "Automatically route downloads into a category folder based on the file name when saving to the default download folder.",
+  "autoCategorizeByExtensionDescription": "Automatically route downloads into a category folder based on the file name when saving to the default download folder",
   "categoryExtensions": "Associated Extensions",
   "categoryExtensionsUsageHint": "Separate suffixes with commas or spaces, then press Enter.",
   "categoryExtensionsEmptyHint": "Without extensions, files won't be saved into this category automatically.",

ui/flutter/lib/l10n/app_es.arb

@@ -208,7 +208,7 @@
   "categoryName": "Nombre de categoría",
   "categoryPath": "Ruta de categoría",
   "autoCategorizeByExtension": "Categorizar automáticamente por tipo de archivo",
-  "autoCategorizeByExtensionDescription": "Las descargas se guardan automáticamente en la carpeta de categoría según la extensión del archivo al usar la carpeta de descargas predeterminada.",
+  "autoCategorizeByExtensionDescription": "Las descargas se guardan automáticamente en la carpeta de categoría según la extensión del archivo al usar la carpeta de descargas predeterminada",
   "categoryExtensions": "Extensiones de archivo",
   "categoryExtensionsUsageHint": "Separa las extensiones con comas o espacios y pulsa Intro.",
   "categoryExtensionsEmptyHint": "Sin extensiones, los archivos no se guardarán automáticamente en esta categoría.",

ui/flutter/lib/l10n/app_fa.arb

@@ -208,7 +208,7 @@
   "categoryName": "نام دسته‌بندی",
   "categoryPath": "مسیر دسته‌بندی",
   "autoCategorizeByExtension": "دسته‌بندی خودکار بر اساس نوع فایل",
-  "autoCategorizeByExtensionDescription": "هنگام ذخیره در پوشه پیش‌فرض دانلود، دانلودها بر اساس پسوند فایل به پوشه دسته مربوطه منتقل می‌شوند.",
+  "autoCategorizeByExtensionDescription": "هنگام ذخیره در پوشه پیش‌فرض دانلود، دانلودها بر اساس پسوند فایل به پوشه دسته مربوطه منتقل می‌شوند",
   "categoryExtensions": "پسوندهای فایل",
   "categoryExtensionsUsageHint": "پسوندها را با ویرگول یا فاصله جدا کنید و Enter را بزنید.",
   "categoryExtensionsEmptyHint": "بدون پسوندها، فایل‌ها به‌صورت خودکار در این دسته ذخیره نمی‌شوند.",

ui/flutter/lib/l10n/app_fr.arb

@@ -208,7 +208,7 @@
   "categoryName": "Nom de la catégorie",
   "categoryPath": "Chemin de la catégorie",
   "autoCategorizeByExtension": "Catégoriser automatiquement selon le type de fichier",
-  "autoCategorizeByExtensionDescription": "Les téléchargements sont placés dans un dossier de catégorie selon l'extension du fichier lors de l'enregistrement dans le dossier de téléchargement par défaut.",
+  "autoCategorizeByExtensionDescription": "Les téléchargements sont placés dans un dossier de catégorie selon l'extension du fichier lors de l'enregistrement dans le dossier de téléchargement par défaut",
   "categoryExtensions": "Extensions de fichier",
   "categoryExtensionsUsageHint": "Séparez les extensions par virgules ou espaces, puis appuyez sur Entrée.",
   "categoryExtensionsEmptyHint": "Sans extensions, les fichiers ne seront pas enregistrés ici automatiquement.",

ui/flutter/lib/l10n/app_hu.arb

@@ -208,7 +208,7 @@
   "categoryName": "Kategória neve",
   "categoryPath": "Kategória útvonala",
   "autoCategorizeByExtension": "Automatikus kategorizálás fájltípus szerint",
-  "autoCategorizeByExtensionDescription": "Az alapértelmezett letöltési mappa használatakor a letöltések a fájl kiterjesztése alapján automatikusan a kategória mappájába kerülnek.",
+  "autoCategorizeByExtensionDescription": "Az alapértelmezett letöltési mappa használatakor a letöltések a fájl kiterjesztése alapján automatikusan a kategória mappájába kerülnek",
   "categoryExtensions": "Fájlkiterjesztések",
   "categoryExtensionsUsageHint": "A kiterjesztéseket vesszővel vagy szóközzel válaszd el, majd nyomd le az Enter billentyűt.",
   "categoryExtensionsEmptyHint": "Kiterjesztések nélkül a fájlok nem kerülnek automatikusan ebbe a kategóriába.",

ui/flutter/lib/l10n/app_id.arb

@@ -208,7 +208,7 @@
   "categoryName": "Nama Kategori",
   "categoryPath": "Path Kategori",
   "autoCategorizeByExtension": "Kategorikan otomatis berdasarkan jenis file",
-  "autoCategorizeByExtensionDescription": "Unduhan dialihkan ke folder kategori berdasarkan ekstensi file saat disimpan ke folder unduhan bawaan.",
+  "autoCategorizeByExtensionDescription": "Unduhan dialihkan ke folder kategori berdasarkan ekstensi file saat disimpan ke folder unduhan bawaan",
   "categoryExtensions": "Ekstensi file",
   "categoryExtensionsUsageHint": "Pisahkan ekstensi dengan koma atau spasi, lalu tekan Enter.",
   "categoryExtensionsEmptyHint": "Tanpa ekstensi, file tidak akan otomatis disimpan ke kategori ini.",

ui/flutter/lib/l10n/app_it.arb

@@ -208,7 +208,7 @@
   "categoryName": "Nome categoria",
   "categoryPath": "Percorso categoria",
   "autoCategorizeByExtension": "Categorizza automaticamente per tipo di file",
-  "autoCategorizeByExtensionDescription": "Il download viene instradato automaticamente nella cartella della categoria in base all'estensione quando si salva nella cartella di download predefinita.",
+  "autoCategorizeByExtensionDescription": "Il download viene instradato automaticamente nella cartella della categoria in base all'estensione quando si salva nella cartella di download predefinita",
   "categoryExtensions": "Estensioni file",
   "categoryExtensionsUsageHint": "Separa le estensioni con virgole o spazi e premi Invio.",
   "categoryExtensionsEmptyHint": "Senza estensioni, i file non verranno salvati qui automaticamente.",

ui/flutter/lib/l10n/app_ja.arb

@@ -208,7 +208,7 @@
   "categoryName": "カテゴリ名",
   "categoryPath": "カテゴリパス",
   "autoCategorizeByExtension": "ファイル種別で自動分類",
-  "autoCategorizeByExtensionDescription": "既定のダウンロードフォルダーに保存する際、拡張子に基づいて分類フォルダーへ自動的に振り分けます。",
+  "autoCategorizeByExtensionDescription": "既定のダウンロードフォルダーに保存する際、拡張子に基づいて分類フォルダーへ自動的に振り分けます",
   "categoryExtensions": "ファイル拡張子",
   "categoryExtensionsUsageHint": "カンマやスペースで拡張子を区切り、Enterで追加します。",
   "categoryExtensionsEmptyHint": "拡張子が未設定の場合、ファイルは自動的にこの分類へ保存されません。",

ui/flutter/lib/l10n/app_ko.arb

@@ -208,7 +208,7 @@
   "categoryName": "카테고리 이름",
   "categoryPath": "카테고리 경로",
   "autoCategorizeByExtension": "파일 형식별 자동 분류",
-  "autoCategorizeByExtensionDescription": "기본 다운로드 폴더에 저장할 때 확장자에 따라 분류 폴더로 자동 이동합니다.",
+  "autoCategorizeByExtensionDescription": "기본 다운로드 폴더에 저장할 때 확장자에 따라 분류 폴더로 자동 이동합니다",
   "categoryExtensions": "파일 확장자",
   "categoryExtensionsUsageHint": "쉼표나 공백으로 확장자를 구분하고 Enter를 눌러 추가하세요.",
   "categoryExtensionsEmptyHint": "확장자가 없으면 파일이 이 분류로 자동 저장되지 않습니다.",

ui/flutter/lib/l10n/app_pl.arb

@@ -208,7 +208,7 @@
   "categoryName": "Nazwa kategorii",
   "categoryPath": "Ścieżka kategorii",
   "autoCategorizeByExtension": "Automatyczna kategorizacja według typu pliku",
-  "autoCategorizeByExtensionDescription": "Pobierane pliki są automatycznie zapisywane w folderze kategorii na podstawie rozszerzenia, gdy używany jest domyślny folder pobierania.",
+  "autoCategorizeByExtensionDescription": "Pobierane pliki są automatycznie zapisywane w folderze kategorii na podstawie rozszerzenia, gdy używany jest domyślny folder pobierania",
   "categoryExtensions": "Rozszerzenia plików",
   "categoryExtensionsUsageHint": "Rozdzielaj rozszerzenia przecinkami lub spacjami i naciskaj Enter.",
   "categoryExtensionsEmptyHint": "Bez rozszerzeń pliki nie będą automatycznie zapisywane w tej kategorii.",

ui/flutter/lib/l10n/app_pt.arb

@@ -208,7 +208,7 @@
   "categoryName": "Nome da Categoria",
   "categoryPath": "Caminho da Categoria",
   "autoCategorizeByExtension": "Categorizar automaticamente por tipo de arquivo",
-  "autoCategorizeByExtensionDescription": "Envia os downloads para a pasta da categoria com base na extensão ao salvar na pasta de download padrão.",
+  "autoCategorizeByExtensionDescription": "Envia os downloads para a pasta da categoria com base na extensão ao salvar na pasta de download padrão",
   "categoryExtensions": "Extensões de arquivo",
   "categoryExtensionsUsageHint": "Separe as extensões com vírgulas ou espaços e prima Enter.",
   "categoryExtensionsEmptyHint": "Sem extensões, os ficheiros não serão guardados aqui automaticamente.",

ui/flutter/lib/l10n/app_ru.arb

@@ -208,7 +208,7 @@
   "categoryName": "Название категории",
   "categoryPath": "Путь категории",
   "autoCategorizeByExtension": "Автокатегоризация по типу файла",
-  "autoCategorizeByExtensionDescription": "Загрузки автоматически сохраняются в папку категории по расширению файла, если выбрана папка загрузки по умолчанию.",
+  "autoCategorizeByExtensionDescription": "Загрузки автоматически сохраняются в папку категории по расширению файла, если выбрана папка загрузки по умолчанию",
   "categoryExtensions": "Расширения файлов",
   "categoryExtensionsUsageHint": "Разделяйте расширения запятыми или пробелами и нажимайте Enter.",
   "categoryExtensionsEmptyHint": "Без расширений файлы не будут автоматически сохранены в эту категорию.",

ui/flutter/lib/l10n/app_sk.arb

@@ -222,7 +222,7 @@
   "categoryName": "Názov kategórie",
   "categoryPath": "Cesta kategórie",
   "autoCategorizeByExtension": "Automatická kategorizácia podľa typu súboru",
-  "autoCategorizeByExtensionDescription": "Sťahovania sa pri ukladaní do predvoleného priečinka sťahovania automaticky presúvajú do priečinka kategórie podľa prípony súboru.",
+  "autoCategorizeByExtensionDescription": "Sťahovania sa pri ukladaní do predvoleného priečinka sťahovania automaticky presúvajú do priečinka kategórie podľa prípony súboru",
   "categoryExtensions": "Prípony súborov",
   "categoryExtensionsUsageHint": "Oddeľujte prípony čiarkami alebo medzerami a stlačte Enter.",
   "categoryExtensionsEmptyHint": "Bez prípon sa súbory automaticky neuložia do tejto kategórie.",

ui/flutter/lib/l10n/app_ta.arb

@@ -208,7 +208,7 @@
   "categoryName": "வகை பெயர்",
   "categoryPath": "வகை பாதை",
   "autoCategorizeByExtension": "கோப்பு வகை வாரியாக தானாக வகைப்படுத்து",
-  "autoCategorizeByExtensionDescription": "இயல்புநிலை பதிவிறக்கக் கோப்புறையில் சேமிக்கும்போது, கோப்பு நீட்டிப்பின் அடிப்படையில் வகைக் கோப்புறைக்கு தானாக அனுப்பப்படும்.",
+  "autoCategorizeByExtensionDescription": "இயல்புநிலை பதிவிறக்கக் கோப்புறையில் சேமிக்கும்போது, கோப்பு நீட்டிப்பின் அடிப்படையில் வகைக் கோப்புறைக்கு தானாக அனுப்பப்படும்",
   "categoryExtensions": "கோப்பு நீட்டிப்புகள்",
   "categoryExtensionsUsageHint": "நீட்டிப்புகளை காற்புள்ளிகள் அல்லது இடைவெளிகளால் பிரித்து Enter அழுத்தவும்.",
   "categoryExtensionsEmptyHint": "நீட்டிப்புகள் இல்லாததால், கோப்புகள் இந்த வகைப்பாட்டில் தானாகச் சேமிக்கப்படாது.",

ui/flutter/lib/l10n/app_tr.arb

@@ -208,7 +208,7 @@
   "categoryName": "Kategori Adı",
   "categoryPath": "Kategori Yolu",
   "autoCategorizeByExtension": "Dosya tipine göre otomatik sınıflandır",
-  "autoCategorizeByExtensionDescription": "Varsayılan indirme klasörüne kaydedilirken dosya uzantısına göre ilgili klasöre otomatik yönlendirir.",
+  "autoCategorizeByExtensionDescription": "Varsayılan indirme klasörüne kaydedilirken dosya uzantısına göre ilgili klasöre otomatik yönlendirir",
   "categoryExtensions": "Dosya uzantıları",
   "categoryExtensionsUsageHint": "Sonekleri virgül veya boşlukla ayırıp Enter'a basın.",
   "categoryExtensionsEmptyHint": "Uzantı yoksa dosyalar bu kategoriye otomatik olarak kaydedilmez.",

ui/flutter/lib/l10n/app_uk.arb

@@ -208,7 +208,7 @@
   "categoryName": "Назва категорії",
   "categoryPath": "Шлях категорії",
   "autoCategorizeByExtension": "Автокатегоризація за типом файлу",
-  "autoCategorizeByExtensionDescription": "Завантаження автоматично зберігаються в папку категорії за розширенням файлу, якщо вибрано папку завантаження за замовчуванням.",
+  "autoCategorizeByExtensionDescription": "Завантаження автоматично зберігаються в папку категорії за розширенням файлу, якщо вибрано папку завантаження за замовчуванням",
   "categoryExtensions": "Розширення файлів",
   "categoryExtensionsUsageHint": "Розділяйте розширення комами або пробілами та натискайте Enter.",
   "categoryExtensionsEmptyHint": "Без розширень файли не зберігатимуться в цю категорію автоматично.",

ui/flutter/lib/l10n/app_vi.arb

@@ -208,7 +208,7 @@
   "categoryName": "Tên danh mục",
   "categoryPath": "Đường dẫn danh mục",
   "autoCategorizeByExtension": "Tự động phân loại theo loại tệp",
-  "autoCategorizeByExtensionDescription": "Tải xuống sẽ được chuyển vào thư mục danh mục dựa trên phần mở rộng tệp khi lưu vào thư mục tải xuống mặc định.",
+  "autoCategorizeByExtensionDescription": "Tải xuống sẽ được chuyển vào thư mục danh mục dựa trên phần mở rộng tệp khi lưu vào thư mục tải xuống mặc định",
   "categoryExtensions": "Phần mở rộng tệp",
   "categoryExtensionsUsageHint": "Phân tách phần mở rộng bằng dấu phẩy hoặc khoảng trắng rồi nhấn Enter.",
   "categoryExtensionsEmptyHint": "Không có phần mở rộng, tệp sẽ không tự động được lưu vào danh mục này.",

ui/flutter/lib/l10n/app_zh.arb

@@ -208,7 +208,7 @@
   "categoryName": "分类名称",
   "categoryPath": "分类路径",
   "autoCategorizeByExtension": "按文件类型自动分类",
-  "autoCategorizeByExtensionDescription": "保存到默认下载目录时，根据文件后缀自动归入对应分类文件夹。",
+  "autoCategorizeByExtensionDescription": "保存到默认下载目录时，根据文件后缀自动归入对应分类文件夹",
   "categoryExtensions": "文件后缀关联",
   "categoryExtensionsUsageHint": "支持逗号/空格分隔后缀，按回车添加。",
   "categoryExtensionsEmptyHint": "未设置后缀，文件不会自动归入此分类。",

ui/flutter/lib/l10n/app_zh_TW.arb

@@ -208,7 +208,7 @@
   "categoryName": "分類名稱",
   "categoryPath": "分類路徑",
   "autoCategorizeByExtension": "按檔案類型自動分類",
-  "autoCategorizeByExtensionDescription": "儲存至預設下載目錄時，根據檔案副檔名自動歸入對應分類資料夾。",
+  "autoCategorizeByExtensionDescription": "儲存至預設下載目錄時，根據檔案副檔名自動歸入對應分類資料夾",
   "categoryExtensions": "檔案副檔名",
   "categoryExtensionsUsageHint": "支援逗號/空白分隔後綴，按回車新增。",
   "categoryExtensionsEmptyHint": "未設定後綴，檔案不會自動歸入此分類。",

ui/flutter/test/app/application/downloader_config_init_test.dart

@@ -32,8 +32,22 @@ void main() {
       // The in-memory fallback still gets usable defaults.
       expect(config.downloadDir, '/downloads');
       expect(config.categories, hasLength(4));
+      expect(config.extra.analyticsEnabled, isFalse);
     });
 
+    for (final analyticsEnabled in [false, true]) {
+      test('preserves the saved analytics preference ($analyticsEnabled)', () async {
+        final stored = configWith()..extra.analyticsEnabled = analyticsEnabled;
+        final config = await loadDownloaderConfig(
+          load: () async => stored,
+          save: (_) async {},
+          defaultDownloadDir: () async => '/downloads',
+        );
+
+        expect(config.extra.analyticsEnabled, analyticsEnabled);
+      });
+    }
+
     test('skips persist when init changed nothing', () async {
       var saved = 0;
       await loadDownloaderConfig(

ui/flutter/test/features/settings/application/settings_controller_test.dart

@@ -99,6 +99,43 @@ void main() {
     expect(saved.saving, isFalse);
   });
 
+  for (final field in ['port', 'DHT', 'PEX']) {
+    test('$field restart notice follows successful persisted changes only', () async {
+      var backend = DownloaderConfig();
+      var failNextSave = false;
+      final registry = CapabilityRegistry(createAppCapabilityCodecs())
+        ..bind(GopeedMethods.getConfig, (_) => DownloaderConfig.fromJson(backend.toJson()))
+        ..bind(GopeedMethods.putConfig, (config) {
+          if (failNextSave) {
+            failNextSave = false;
+            throw StateError('offline');
+          }
+          backend = DownloaderConfig.fromJson(config.toJson());
+          return const RpcUnit();
+        });
+      final container = _settingsContainer(registry);
+      addTearDown(container.dispose);
+      final initial = await container.read(settingsControllerProvider.future);
+      final controller = container.read(settingsControllerProvider.notifier);
+      final draft = DownloaderConfig.fromJson(initial.config.toJson());
+      switch (field) {
+        case 'port':
+          draft.protocolConfig.bt.listenPort = 6881;
+        case 'DHT':
+          draft.protocolConfig.bt.disableDht = true;
+        case 'PEX':
+          draft.protocolConfig.bt.disablePex = true;
+      }
+      failNextSave = true;
+      await expectLater(controller.save(draft), throwsStateError);
+      expect((await controller.save(draft)).btRestartRequired, isTrue);
+      expect((await controller.save(draft)).btRestartRequired, isFalse);
+      draft.protocolConfig.bt.seedRatio = 2;
+      expect((await controller.save(draft)).btRestartRequired, isFalse);
+      expect((await controller.save(initial.config)).btRestartRequired, isTrue);
+    });
+  }
+
   test('rapid full config saves run in order and keep the latest user edits', () async {
     final backend = DownloaderConfig();
     final entered = Completer<void>();
@@ -127,7 +164,8 @@ void main() {
     final savingSecond = controller.save(second);
     expect(puts.length, 1);
     release.complete();
-    await Future.wait([savingFirst, savingSecond]);
+    final results = await Future.wait([savingFirst, savingSecond]);
+    expect(results.map((result) => result.btRestartRequired), [true, false]);
     expect(puts, hasLength(2));
     expect(puts[0].protocolConfig.bt.listenPort, 6881);
     expect(puts[1].protocolConfig.bt.listenPort, 6881);

ui/flutter/test/features/tasks/presentation/create_task_advanced_toggle_test.dart

@@ -0,0 +1,59 @@
+import 'package:flutter/services.dart';
+import 'package:flutter/widgets.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:gopeed/features/tasks/presentation/widgets/create_task_advanced_toggle.dart';
+import 'package:gopeed/shared/theme/app_component_themes.dart';
+import 'package:gopeed/shared/theme/app_theme.dart';
+import 'package:shadcn_flutter/shadcn_flutter.dart' as shad;
+
+void main() {
+  for (final width in [360.0, 768.0, 1024.0]) {
+    testWidgets('advanced disclosure supports keyboard and touch at width $width', (tester) async {
+      tester.view.physicalSize = Size(width, 768);
+      tester.view.devicePixelRatio = 1;
+      addTearDown(tester.view.resetPhysicalSize);
+      addTearDown(tester.view.resetDevicePixelRatio);
+      var expanded = false;
+      await tester.pumpWidget(
+        shad.ShadcnApp(
+          theme: AppTheme.light(),
+          materialTheme: AppTheme.materialLight(),
+          home: AppComponentThemes(
+            child: StatefulBuilder(
+              builder: (context, setState) => Center(
+                child: Padding(
+                  padding: const EdgeInsets.all(16),
+                  child: CreateTaskAdvancedToggle(
+                    expanded: expanded,
+                    onPressed: () => setState(() => expanded = !expanded),
+                  ),
+                ),
+              ),
+            ),
+          ),
+        ),
+      );
+      await tester.pumpAndSettle();
+      expect(tester.getSize(find.byType(shad.GhostButton)).height, greaterThanOrEqualTo(44));
+      expect(
+        find.byWidgetPredicate((widget) => widget is Semantics && widget.properties.expanded == false),
+        findsOneWidget,
+      );
+      await tester.sendKeyEvent(LogicalKeyboardKey.tab);
+      await tester.pump();
+      await tester.sendKeyEvent(LogicalKeyboardKey.enter);
+      await tester.pumpAndSettle();
+      expect(expanded, isTrue);
+      expect(
+        find.byWidgetPredicate((widget) => widget is Semantics && widget.properties.expanded == true),
+        findsOneWidget,
+      );
+      await tester.tap(find.text('Advanced'));
+      await tester.pumpAndSettle();
+      expect(expanded, isFalse);
+      expect(tester.takeException(), isNull);
+      await tester.pumpWidget(const SizedBox.shrink());
+      await tester.pumpAndSettle();
+    });
+  }
+}

ui/flutter/test/widget_test.dart

@@ -1636,6 +1636,46 @@ void main() {
     expect(tester.takeException(), isNull);
   });
 
+  testWidgets('BT settings show a restart message only after an affected auto-save', (tester) async {
+    await _setTestSize(tester, const Size(1024, 900));
+    final controller = FakeSettingsController()..btRestartRequired = true;
+    await tester.pumpWidget(
+      ProviderScope(
+        overrides: [
+          appRuntimeControllerProvider.overrideWith(FakeRuntimeController.new),
+          appPlatformControllerProvider.overrideWith(FakePlatformController.new),
+          settingsControllerProvider.overrideWith(() => controller),
+        ],
+        child: const _SettingsTestApp(),
+      ),
+    );
+    await tester.pumpAndSettle();
+    await tester.tap(find.text('Downloads'));
+    await tester.pumpAndSettle();
+    const message = 'This setting takes effect after restarting the app';
+    expect(find.text(message), findsNothing);
+    final port = find.byKey(const ValueKey('bt-listen-port-input'));
+    await tester.ensureVisible(port);
+    await tester.pumpAndSettle();
+    await tester.enterText(port, '6881');
+    await tester.pump(const Duration(milliseconds: 500));
+    expect(find.text(message), findsNothing);
+    await tester.pump(const Duration(milliseconds: 200));
+    await tester.pump(const Duration(milliseconds: 300));
+    expect(find.text(message), findsOneWidget);
+    expect(tester.widget<AppToastContent>(find.byType(AppToastContent)).type, AppToastType.info);
+    await tester.pump(const Duration(seconds: 6));
+    await tester.pumpAndSettle();
+    controller.btRestartRequired = false;
+    final seedRatio = find.byKey(const ValueKey('bt-seed-ratio-input'));
+    await tester.ensureVisible(seedRatio);
+    await tester.enterText(seedRatio, '2');
+    await tester.pump(const Duration(milliseconds: 700));
+    await tester.pumpAndSettle();
+    expect(find.text(message), findsNothing);
+    expect(tester.takeException(), isNull);
+  });
+
   testWidgets('settings FTP connections save into the FTP protocol config', (WidgetTester tester) async {
     await _setTestSize(tester, const Size(1024, 900));
     final settingsController = FakeSettingsController();
@@ -6181,12 +6221,15 @@ ApiServerState _testApiServerState({
 }
 
 class FakeSettingsController extends SettingsController {
+  bool btRestartRequired = false;
+
   @override
   Future<SettingsState> build() async => SettingsState(config: DownloaderConfig());
 
   @override
-  Future<void> save(DownloaderConfig config) async {
+  Future<SettingsSaveResult> save(DownloaderConfig config) async {
     state = AsyncValue.data(SettingsState(config: config));
+    return SettingsSaveResult(btRestartRequired: btRestartRequired);
   }
 }