优化

src/core/routing/navigationRecovery.ts

@@ -0,0 +1,74 @@
+const RECOVERY_STORAGE_KEY = 'cc-admin-route-asset-recovery:v1'
+const RECOVERY_WINDOW_MS = 30_000
+
+const staleAssetErrorPatterns = [
+  /failed to fetch dynamically imported module/i,
+  /error loading dynamically imported module/i,
+  /importing a module script failed/i,
+  /chunkloaderror/i,
+  /loading (css )?chunk [\w-]+ failed/i,
+]
+
+export interface NavigationRecoveryDependencies {
+  storage: Pick<Storage, 'getItem' | 'setItem' | 'removeItem'>
+  now: () => number
+  hasUnsavedWork: () => boolean
+  confirmDiscard: () => Promise<boolean>
+  discardUnsavedWork: () => void
+  navigate: (target: string) => void
+  showError: (message: string) => void
+}
+
+interface RecoveryAttempt {
+  target: string
+  attemptedAt: number
+}
+
+function errorMessage(error: unknown) {
+  if (error instanceof Error) return error.message
+  return typeof error === 'string' ? error : ''
+}
+
+export function isStaleRouteAssetError(error: unknown) {
+  const message = errorMessage(error)
+  return staleAssetErrorPatterns.some((pattern) => pattern.test(message))
+}
+
+function recentAttempt(dependencies: NavigationRecoveryDependencies, target: string) {
+  try {
+    const parsed = JSON.parse(dependencies.storage.getItem(RECOVERY_STORAGE_KEY) || 'null') as RecoveryAttempt | null
+    return Boolean(parsed
+      && parsed.target === target
+      && dependencies.now() - parsed.attemptedAt < RECOVERY_WINDOW_MS)
+  } catch {
+    return false
+  }
+}
+
+export async function recoverNavigationError(
+  error: unknown,
+  target: string,
+  dependencies: NavigationRecoveryDependencies,
+) {
+  if (!isStaleRouteAssetError(error)) {
+    dependencies.showError('页面切换失败，请重试')
+    return false
+  }
+  if (recentAttempt(dependencies, target)) {
+    dependencies.showError('页面资源加载失败，请稍后重试或手动刷新')
+    return false
+  }
+  if (dependencies.hasUnsavedWork() && !await dependencies.confirmDiscard()) return true
+
+  dependencies.storage.setItem(RECOVERY_STORAGE_KEY, JSON.stringify({
+    target,
+    attemptedAt: dependencies.now(),
+  } satisfies RecoveryAttempt))
+  dependencies.discardUnsavedWork()
+  dependencies.navigate(target)
+  return true
+}
+
+export function clearNavigationRecoveryAttempt(storage: Pick<Storage, 'removeItem'>) {
+  storage.removeItem(RECOVERY_STORAGE_KEY)
+}