优化

src/core/routing/navigationRecovery.test.ts

@@ -0,0 +1,80 @@
+import { describe, expect, it, vi } from 'vitest'
+import {
+  clearNavigationRecoveryAttempt,
+  isStaleRouteAssetError,
+  recoverNavigationError,
+  type NavigationRecoveryDependencies,
+} from './navigationRecovery'
+
+function memoryStorage() {
+  const values = new Map<string, string>()
+  return {
+    getItem: (key: string) => values.get(key) ?? null,
+    setItem: (key: string, value: string) => values.set(key, value),
+    removeItem: (key: string) => values.delete(key),
+  }
+}
+
+function dependencies(overrides: Partial<NavigationRecoveryDependencies> = {}) {
+  return {
+    storage: memoryStorage(),
+    now: () => 1_000,
+    hasUnsavedWork: () => false,
+    confirmDiscard: vi.fn(async () => true),
+    discardUnsavedWork: vi.fn(),
+    navigate: vi.fn(),
+    showError: vi.fn(),
+    ...overrides,
+  } satisfies NavigationRecoveryDependencies
+}
+
+describe('navigationRecovery', () => {
+  it.each([
+    'Failed to fetch dynamically imported module: /assets/page.js',
+    'Importing a module script failed',
+    'ChunkLoadError: Loading chunk 42 failed',
+    'Loading CSS chunk page failed',
+  ])('recognizes stale deployed route assets: %s', (message) => {
+    expect(isStaleRouteAssetError(new TypeError(message))).toBe(true)
+  })
+
+  it('navigates once to the intended route after a stale lazy chunk fails', async () => {
+    const deps = dependencies()
+    await expect(recoverNavigationError(
+      new TypeError('Failed to fetch dynamically imported module'),
+      '/overseas-warehouse/inventory',
+      deps,
+    )).resolves.toBe(true)
+    expect(deps.discardUnsavedWork).toHaveBeenCalledOnce()
+    expect(deps.navigate).toHaveBeenCalledWith('/overseas-warehouse/inventory')
+    expect(deps.showError).not.toHaveBeenCalled()
+  })
+
+  it('asks before discarding dirty work and stays put when the user cancels', async () => {
+    const deps = dependencies({ hasUnsavedWork: () => true, confirmDiscard: vi.fn(async () => false) })
+    await recoverNavigationError(new Error('Importing a module script failed'), '/system/users', deps)
+    expect(deps.confirmDiscard).toHaveBeenCalledOnce()
+    expect(deps.discardUnsavedWork).not.toHaveBeenCalled()
+    expect(deps.navigate).not.toHaveBeenCalled()
+  })
+
+  it('prevents reload loops and clears the recovery marker after navigation succeeds', async () => {
+    const storage = memoryStorage()
+    const deps = dependencies({ storage })
+    const error = new Error('ChunkLoadError: Loading chunk page failed')
+    await recoverNavigationError(error, '/system/users', deps)
+    await recoverNavigationError(error, '/system/users', deps)
+    expect(deps.navigate).toHaveBeenCalledOnce()
+    expect(deps.showError).toHaveBeenCalledWith('页面资源加载失败，请稍后重试或手动刷新')
+    clearNavigationRecoveryAttempt(storage)
+    await recoverNavigationError(error, '/system/users', deps)
+    expect(deps.navigate).toHaveBeenCalledTimes(2)
+  })
+
+  it('reports ordinary router failures without reloading the application', async () => {
+    const deps = dependencies()
+    await expect(recoverNavigationError(new Error('Unexpected guard failure'), '/customers', deps)).resolves.toBe(false)
+    expect(deps.navigate).not.toHaveBeenCalled()
+    expect(deps.showError).toHaveBeenCalledWith('页面切换失败，请重试')
+  })
+})

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)
+}