fix: recover from missing note paths

src/hooks/useNoteActions.missing-path.test.ts

@@ -0,0 +1,87 @@
+import { describe, it, expect, vi, beforeEach } from 'vitest'
+import { renderHook, act } from '@testing-library/react'
+import { isTauri, mockInvoke } from '../mock-tauri'
+import type { VaultEntry } from '../types'
+import { useNoteActions, type NoteActionsConfig } from './useNoteActions'
+
+vi.mock('../mock-tauri', () => ({
+  isTauri: vi.fn(() => false),
+  addMockEntry: vi.fn(),
+  updateMockContent: vi.fn(),
+  trackMockChange: vi.fn(),
+  mockInvoke: vi.fn(),
+}))
+
+const makeEntry = (overrides: Partial<VaultEntry> = {}): VaultEntry => ({
+  path: '/test/vault/missing.md',
+  filename: 'missing.md',
+  title: 'Missing Note',
+  isA: 'Note',
+  aliases: [],
+  belongsTo: [],
+  relatedTo: [],
+  status: null,
+  archived: false,
+  modifiedAt: 1700000000,
+  createdAt: 1700000000,
+  fileSize: 100,
+  snippet: '',
+  wordCount: 0,
+  relationships: {},
+  icon: null,
+  color: null,
+  order: null,
+  outgoingLinks: [],
+  template: null,
+  sort: null,
+  sidebarLabel: null,
+  view: null,
+  visible: null,
+  properties: {},
+  organized: false,
+  favorite: false,
+  favoriteIndex: null,
+  listPropertiesDisplay: [],
+  hasH1: false,
+  ...overrides,
+})
+
+function makeConfig(overrides: Partial<NoteActionsConfig> = {}): NoteActionsConfig {
+  return {
+    addEntry: vi.fn(),
+    removeEntry: vi.fn(),
+    entries: [makeEntry()],
+    reloadVault: vi.fn().mockResolvedValue([]),
+    setToastMessage: vi.fn(),
+    updateEntry: vi.fn(),
+    vaultPath: '/test/vault',
+    ...overrides,
+  }
+}
+
+describe('useNoteActions missing-path recovery', () => {
+  beforeEach(() => {
+    vi.clearAllMocks()
+    vi.mocked(isTauri).mockReturnValue(false)
+  })
+
+  it('reloads vault state and shows a toast when the selected note path is gone', async () => {
+    vi.mocked(mockInvoke).mockRejectedValueOnce(new Error('File does not exist: /test/vault/missing.md'))
+    const config = makeConfig()
+    const warnSpy = vi.spyOn(console, 'warn').mockImplementation(() => {})
+
+    const { result } = renderHook(() => useNoteActions(config))
+
+    await act(async () => {
+      await result.current.handleSelectNote(makeEntry())
+    })
+
+    expect(result.current.tabs).toEqual([])
+    expect(result.current.activeTabPath).toBeNull()
+    expect(config.reloadVault).toHaveBeenCalledTimes(1)
+    expect(config.setToastMessage).toHaveBeenCalledWith(
+      '"Missing Note" could not be opened because its file is missing or moved.',
+    )
+    warnSpy.mockRestore()
+  })
+})