refactor: 重构 RouterContainer 组件以支持懒加载页面模块

- 移除不必要的 Suspense 组件，改为使用 LoadedPage 组件进行懒加载。
- 更新特性获取逻辑，使用 getFeatureByKey 函数替代直接查找。
- 新增 featureMeta.ts 文件，集中管理功能配置和相关方法。
- 实现 pageLoaders 以支持按需加载页面模块，提升性能和用户体验。

src/components/RouterContainer.tsx

@@ -1,11 +1,41 @@
-import { FEATURES } from '@/config/features';
+import { getFeatureByKey } from '@/config/features';
+import { loadPage } from '@/config/pageLoaders/index';
 import { useRouter } from '@/providers/RouterProvider';
-import { Suspense } from 'react';
+import type { PageType } from '@/types/storage';
+import { type ComponentType, useEffect, useState } from 'react';
 import PageErrorBoundary from '@/components/PageErrorBoundary';
 import PageSkeleton from '@/components/PageSkeleton';
 import { cn } from '@/lib/utils';
 import { AlertTriangle } from 'lucide-react';
 
+function LoadedPage({ pageKey }: { pageKey: PageType }) {
+  const [Page, setPage] = useState<ComponentType | null>(null);
+
+  useEffect(() => {
+    let cancelled = false;
+
+    loadPage(pageKey)
+      .then((mod) => {
+        if (!cancelled) {
+          setPage(() => mod.default);
+        }
+      })
+      .catch((err) => {
+        console.error('[Router Page Load Error]', err);
+      });
+
+    return () => {
+      cancelled = true;
+    };
+  }, [pageKey]);
+
+  if (!Page) {
+    return <PageSkeleton variant={pageKey === 'dashboard' ? 'dashboard' : 'tool'} />;
+  }
+
+  return <Page />;
+}
+
 export default function RouterContainer() {
   const { currentPage, isLoaded } = useRouter();
 
@@ -16,8 +46,7 @@ export default function RouterContainer() {
     return <PageSkeleton variant={currentPage === 'dashboard' ? 'dashboard' : 'tool'} />;
   }
 
-  const currentFeature = FEATURES.find((f) => f.key === currentPage);
-  const MatchedComponent = currentFeature?.component;
+  const currentFeature = getFeatureByKey(currentPage);
 
   return (
     <div
@@ -28,25 +57,21 @@ export default function RouterContainer() {
         animationClass,
       )}
     >
-      <Suspense
-        fallback={<PageSkeleton variant={currentPage === 'dashboard' ? 'dashboard' : 'tool'} />}
-      >
-        <PageErrorBoundary resetKey={currentPage}>
-          {MatchedComponent ? (
-            <MatchedComponent />
-          ) : (
-            <div className="flex-1 flex flex-col items-center justify-center p-8 text-center animate-in fade-in duration-300">
-              <div className="flex h-12 w-12 items-center justify-center rounded-xl bg-destructive/10 text-destructive mb-4">
-                <AlertTriangle className="h-6 w-6" />
-              </div>
-              <h3 className="text-sm font-semibold text-foreground">页面未找到</h3>
-              <p className="text-xs text-muted-foreground mt-1 max-w-[240px]">
-                该功能不存在或已被移除。
-              </p>
+      <PageErrorBoundary resetKey={currentPage}>
+        {currentFeature ? (
+          <LoadedPage key={currentPage} pageKey={currentPage} />
+        ) : (
+          <div className="flex-1 flex flex-col items-center justify-center p-8 text-center animate-in fade-in duration-300">
+            <div className="flex h-12 w-12 items-center justify-center rounded-xl bg-destructive/10 text-destructive mb-4">
+              <AlertTriangle className="h-6 w-6" />
             </div>
-          )}
-        </PageErrorBoundary>
-      </Suspense>
+            <h3 className="text-sm font-semibold text-foreground">页面未找到</h3>
+            <p className="text-xs text-muted-foreground mt-1 max-w-[240px]">
+              该功能不存在或已被移除。
+            </p>
+          </div>
+        )}
+      </PageErrorBoundary>
     </div>
   );
 }

src/config/__tests__/features.lazy.test.ts

@@ -67,19 +67,21 @@ describe('features 懒加载', () => {
     expect(pageLoadTracker.loaded).toEqual([]);
   });
 
-  it('渲染 lazy 组件时才应加载对应页面模块', async () => {
-    const React = await import('react');
-    const { render, waitFor } = await import('@testing-library/react');
-    const { FEATURES } = await import('@/config/features');
+  it('loadPage 应仅加载对应页面模块', async () => {
+    const { loadPage } = await import('@/config/pageLoaders/index');
 
-    const DashboardPage = FEATURES.find((f) => f.key === 'dashboard')!.component;
+    await loadPage('dashboard');
 
-    render(
-      React.createElement(React.Suspense, { fallback: null }, React.createElement(DashboardPage)),
-    );
+    expect(pageLoadTracker.loaded).toEqual(['Dashboard']);
+  });
 
-    await waitFor(() => {
-      expect(pageLoadTracker.loaded).toEqual(['Dashboard']);
-    });
+  it('loadPage 切换页面时不应加载无关页面模块', async () => {
+    const { loadPage } = await import('@/config/pageLoaders/index');
+
+    await loadPage('timestamp');
+
+    expect(pageLoadTracker.loaded).toEqual(['Timestamp']);
+    expect(pageLoadTracker.loaded).not.toContain('QrCode');
+    expect(pageLoadTracker.loaded).not.toContain('TestDataGenerator');
   });
 });

src/config/__tests__/features.test.ts

@@ -19,13 +19,11 @@ describe('features', () => {
         expect(feature).toHaveProperty('label');
         expect(feature).toHaveProperty('description');
         expect(feature).toHaveProperty('defaultVisible');
-        expect(feature).toHaveProperty('component');
+        expect(feature).not.toHaveProperty('component');
         expect(typeof feature.key).toBe('string');
         expect(typeof feature.label).toBe('string');
         expect(typeof feature.description).toBe('string');
         expect(typeof feature.defaultVisible).toBe('boolean');
-        expect(feature.component).toBeDefined();
-        expect(['function', 'object']).toContain(typeof feature.component);
 
         if (feature.key !== 'dashboard') {
           expect(feature).toHaveProperty('icon');

src/config/featureMeta.ts

@@ -1,4 +1,4 @@
-import { type ComponentType, lazy } from 'react';
+import type { ComponentType } from 'react';
 import type { LucideProps } from 'lucide-react';
 import type { PageType } from '@/types/storage';
 import {
@@ -15,18 +15,6 @@ import {
 
 export type PaletteColorKey = 'primary' | 'success' | 'warning' | 'error' | 'secondary' | 'info';
 
-// 懒加载页面组件
-const DashboardPage = lazy(() => import('@/pages/Dashboard'));
-const TimestampPage = lazy(() => import('@/pages/Timestamp'));
-const StorageCleanerPage = lazy(() => import('@/pages/StorageCleaner'));
-const QrCodePage = lazy(() => import('@/pages/QrCode'));
-const TextStatisticsPage = lazy(() => import('@/pages/TextStatistics'));
-const JwtPage = lazy(() => import('@/pages/Jwt'));
-const JsonToolsPage = lazy(() => import('@/pages/JsonTools'));
-const Base64ConverterPage = lazy(() => import('@/pages/Base64Converter'));
-const RightClickRestorerPage = lazy(() => import('@/pages/RightClickRestorer'));
-const TestDataGeneratorPage = lazy(() => import('@/pages/TestDataGenerator'));
-
 export interface FeatureConfig {
   key: PageType;
   label: string;
@@ -34,7 +22,6 @@ export interface FeatureConfig {
   themeColorKey?: PaletteColorKey;
   icon?: ComponentType<LucideProps>;
   defaultVisible: boolean;
-  component: ComponentType;
 }
 
 export const FEATURES: FeatureConfig[] = [
@@ -43,7 +30,6 @@ export const FEATURES: FeatureConfig[] = [
     label: '仪表盘',
     description: '',
     defaultVisible: true,
-    component: DashboardPage,
   },
   {
     key: 'timestamp',
@@ -52,7 +38,6 @@ export const FEATURES: FeatureConfig[] = [
     themeColorKey: 'primary',
     icon: Clock,
     defaultVisible: true,
-    component: TimestampPage,
   },
   {
     key: 'storageCleaner',
@@ -61,7 +46,6 @@ export const FEATURES: FeatureConfig[] = [
     themeColorKey: 'warning',
     icon: Database,
     defaultVisible: true,
-    component: StorageCleanerPage,
   },
   {
     key: 'qrCode',
@@ -70,7 +54,6 @@ export const FEATURES: FeatureConfig[] = [
     themeColorKey: 'success',
     icon: QrCode,
     defaultVisible: true,
-    component: QrCodePage,
   },
   {
     key: 'textStatistics',
@@ -79,7 +62,6 @@ export const FEATURES: FeatureConfig[] = [
     themeColorKey: 'secondary',
     icon: FileText,
     defaultVisible: true,
-    component: TextStatisticsPage,
   },
   {
     key: 'jwt',
@@ -88,7 +70,6 @@ export const FEATURES: FeatureConfig[] = [
     themeColorKey: 'info',
     icon: Key,
     defaultVisible: true,
-    component: JwtPage,
   },
   {
     key: 'jsonTools',
@@ -97,7 +78,6 @@ export const FEATURES: FeatureConfig[] = [
     themeColorKey: 'primary',
     icon: GitCompareArrows,
     defaultVisible: true,
-    component: JsonToolsPage,
   },
   {
     key: 'base64Converter',
@@ -106,7 +86,6 @@ export const FEATURES: FeatureConfig[] = [
     themeColorKey: 'info',
     icon: ArrowLeftRight,
     defaultVisible: true,
-    component: Base64ConverterPage,
   },
   {
     key: 'rightClickRestorer',
@@ -115,7 +94,6 @@ export const FEATURES: FeatureConfig[] = [
     themeColorKey: 'success',
     icon: MousePointerClick,
     defaultVisible: true,
-    component: RightClickRestorerPage,
   },
   {
     key: 'testDataGenerator',
@@ -124,7 +102,6 @@ export const FEATURES: FeatureConfig[] = [
     themeColorKey: 'warning',
     icon: FileSpreadsheet,
     defaultVisible: true,
-    component: TestDataGeneratorPage,
   },
 ];
 

src/config/features.ts

@@ -0,0 +1,9 @@
+export type { FeatureConfig, PaletteColorKey } from '@/config/featureMeta';
+export {
+  FEATURES,
+  getAllFeatureKeys,
+  getDefaultPageOrder,
+  getDefaultVisibleFeatureKeys,
+  getEntryPointType,
+  getFeatureByKey,
+} from '@/config/featureMeta';

src/config/pageLoaders/base64Converter.ts

@@ -0,0 +1,5 @@
+import type { ComponentType } from 'react';
+
+export default function loadBase64Converter(): Promise<{ default: ComponentType }> {
+  return import('@/pages/Base64Converter');
+}

src/config/pageLoaders/dashboard.ts

@@ -0,0 +1,5 @@
+import type { ComponentType } from 'react';
+
+export default function loadDashboard(): Promise<{ default: ComponentType }> {
+  return import('@/pages/Dashboard');
+}

src/config/pageLoaders/index.ts

@@ -0,0 +1,33 @@
+import type { ComponentType } from 'react';
+import type { PageType } from '@/types/storage';
+
+type PageModule = { default: ComponentType };
+
+export function loadPage(key: PageType): Promise<PageModule> {
+  switch (key) {
+    case 'dashboard':
+      return import('@/config/pageLoaders/dashboard').then((m) => m.default());
+    case 'timestamp':
+      return import('@/config/pageLoaders/timestamp').then((m) => m.default());
+    case 'storageCleaner':
+      return import('@/config/pageLoaders/storageCleaner').then((m) => m.default());
+    case 'qrCode':
+      return import('@/config/pageLoaders/qrCode').then((m) => m.default());
+    case 'textStatistics':
+      return import('@/config/pageLoaders/textStatistics').then((m) => m.default());
+    case 'jwt':
+      return import('@/config/pageLoaders/jwt').then((m) => m.default());
+    case 'jsonTools':
+      return import('@/config/pageLoaders/jsonTools').then((m) => m.default());
+    case 'base64Converter':
+      return import('@/config/pageLoaders/base64Converter').then((m) => m.default());
+    case 'rightClickRestorer':
+      return import('@/config/pageLoaders/rightClickRestorer').then((m) => m.default());
+    case 'testDataGenerator':
+      return import('@/config/pageLoaders/testDataGenerator').then((m) => m.default());
+    default: {
+      const _exhaustive: never = key;
+      return Promise.reject(new Error(`Unknown page: ${String(_exhaustive)}`));
+    }
+  }
+}

src/config/pageLoaders/jsonTools.ts

@@ -0,0 +1,5 @@
+import type { ComponentType } from 'react';
+
+export default function loadJsonTools(): Promise<{ default: ComponentType }> {
+  return import('@/pages/JsonTools');
+}

src/config/pageLoaders/jwt.ts

@@ -0,0 +1,5 @@
+import type { ComponentType } from 'react';
+
+export default function loadJwt(): Promise<{ default: ComponentType }> {
+  return import('@/pages/Jwt');
+}

src/config/pageLoaders/qrCode.ts

@@ -0,0 +1,5 @@
+import type { ComponentType } from 'react';
+
+export default function loadQrCode(): Promise<{ default: ComponentType }> {
+  return import('@/pages/QrCode');
+}

src/config/pageLoaders/rightClickRestorer.ts

@@ -0,0 +1,5 @@
+import type { ComponentType } from 'react';
+
+export default function loadRightClickRestorer(): Promise<{ default: ComponentType }> {
+  return import('@/pages/RightClickRestorer');
+}

src/config/pageLoaders/storageCleaner.ts

@@ -0,0 +1,5 @@
+import type { ComponentType } from 'react';
+
+export default function loadStorageCleaner(): Promise<{ default: ComponentType }> {
+  return import('@/pages/StorageCleaner');
+}

src/config/pageLoaders/testDataGenerator.ts

@@ -0,0 +1,5 @@
+import type { ComponentType } from 'react';
+
+export default function loadTestDataGenerator(): Promise<{ default: ComponentType }> {
+  return import('@/pages/TestDataGenerator');
+}

src/config/pageLoaders/textStatistics.ts

@@ -0,0 +1,5 @@
+import type { ComponentType } from 'react';
+
+export default function loadTextStatistics(): Promise<{ default: ComponentType }> {
+  return import('@/pages/TextStatistics');
+}

src/config/pageLoaders/timestamp.ts

@@ -0,0 +1,5 @@
+import type { ComponentType } from 'react';
+
+export default function loadTimestamp(): Promise<{ default: ComponentType }> {
+  return import('@/pages/Timestamp');
+}