qzl
107 lines
2.4 KiB
Markdown
107 lines
2.4 KiB
Markdown
# 路由守卫逻辑分散
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## 问题描述
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当前路由守卫逻辑分散在两处，可能导致判断不一致：
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1. `app_router.dart` 的 `redirect()` - 核心守卫逻辑
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2. `LinksyApp` 的 `BlocListener` - 预留了位置但未使用
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## 当前代码
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```dart
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// app_router.dart
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GoRouter createAppRouter(AuthBloc authBloc) {
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return GoRouter(
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refreshListenable: GoRouterRefreshStream(authBloc.stream),
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redirect: (context, state) {
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final authState = authBloc.state;
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final isAuthenticated = authState is AuthAuthenticated;
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// ... 守卫判断逻辑
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},
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);
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}
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// app.dart (LinksyApp)
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BlocListener<AuthBloc, AuthState>(
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listener: (context, state) {
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// Handle auth state changes if needed ← 预留但未使用
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},
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)
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```
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## 问题
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| 问题 | 说明 |
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|------|------|
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| 逻辑分散 | 守卫在 `redirect()`，但 BlocListener 预留了位置 |
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| 隐患 | 将来可能有人在两处都加逻辑，导致不一致 |
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| 职责不清 | 到底是 redirect 管跳转，还是 BlocListener 管跳转 |
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## 建议方案
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**方案1：路由守卫集中在 redirect()（当前方案，保持但清理）**
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```dart
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// app_router.dart
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GoRouter createAppRouter() {
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return GoRouter(
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refreshListenable: GoRouterRefreshStream(sl<AuthBloc>().stream),
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redirect: (context, state) {
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// 唯一的守卫逻辑
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},
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);
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}
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// LinksyApp - 只做副作用，不做路由跳转
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BlocListener<AuthBloc, AuthState>(
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listener: (context, state) {
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// 埋点、Toast 等副作用
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},
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)
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```
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**方案2：路由守卫集中在 BlocListener**
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```dart
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// app_router.dart - 不再有 redirect
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GoRouter createAppRouter() {
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return GoRouter(
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routes: [...],
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);
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}
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// LinksyApp - 唯一的路由守卫入口
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BlocListener<AuthBloc, AuthState>(
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listener: (context, state) {
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final router = GoRouter.of(context);
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if (state is AuthUnauthenticated) {
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if (!isPublicRoute(router.matchedLocation)) {
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router.go(AppRoutes.authLogin);
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}
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} else if (state is AuthAuthenticated) {
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if (router.matchedLocation == AppRoutes.authLogin) {
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router.go(AppRoutes.homeMain);
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}
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}
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},
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)
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```
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## 收益
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| 收益 | 说明 |
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|------|------|
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| 单一职责 | 路由跳转只在一处判断 |
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| 可维护 | 将来不会有人误在另一处加逻辑 |
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| 清晰 | 开发者知道去哪改守卫逻辑 |
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## 涉及文件
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- `apps/lib/app/app.dart`
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- `apps/lib/app/router/app_router.dart`
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## 状态
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- [ ] 待修复
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