import { vi, beforeEach } from 'vitest'

/**
 * In-memory store for uni mocked storage APIs.
 * Cleared between tests via beforeEach.
 * Exposed as uni.__mockStorage so tests can pre-populate storage values
 * before store creation (e.g. simulating a saved token).
 */
const mockStorage = {}

/**
 * Mock all uni-app APIs used by stores and common pages.
 *
 * The storage mocks (getStorageSync / setStorageSync / removeStorageSync)
 * operate on the mockStorage object above, which persists across calls
 * within a test but is wiped before each test.
 *
 * Tests can push values into storage by setting:
 *   uni.__mockStorage.theme = 'light'
 *   uni.__mockStorage.token = 'my-token'
 */
globalThis.uni = {
  /** Storage — backed by mockStorage */
  getStorageSync: vi.fn((key) => mockStorage[key]),
  setStorageSync: vi.fn((key, value) => { mockStorage[key] = value }),
  removeStorageSync: vi.fn((key) => { delete mockStorage[key] }),

  /** System info */
  getSystemInfoSync: vi.fn(() => ({ theme: 'dark' })),
  onThemeChange: vi.fn(),

  /** Tab bar */
  setTabBarStyle: vi.fn(),

  /** Navigation */
  getCurrentPages: vi.fn(() => []),
  navigateTo: vi.fn(),
  reLaunch: vi.fn(),

  /** Feedback */
  showModal: vi.fn(),
  showToast: vi.fn(),

  /** Network */
  request: vi.fn(),
  downloadFile: vi.fn(),
  uploadFile: vi.fn(),

  /** Exposed for test convenience */
  __mockStorage: mockStorage,
}

// ── Per-test cleanup ─────────────────────────────────────────────

beforeEach(() => {
  // Wipe the in-memory storage so no state leaks between tests
  Object.keys(mockStorage).forEach((k) => delete mockStorage[k])

  // Reset call history and custom return-values for all vi.fn() mocks
  // (implementations provided in the factory are *not* removed)
  vi.clearAllMocks()
})