import { describe, it, expect, beforeEach, vi } from 'vitest';
import authReducer, {
  setCredentials,
  clearCredentials,
  type AuthState,
} from '../../src/store/slices/authSlice';
import { TOKEN_STORAGE_KEY } from '../../src/api/request';
import type { AuthUser } from '../../src/api/types';

const user: AuthUser = { id: 1, sUserName: 'admin', sUserType: '超级管理员', sLanguage: '中文' };

describe('authSlice', () => {
  beforeEach(() => {
    localStorage.clear();
  });

  it('setCredentials stores token and user and persists token', () => {
    const start: AuthState = { token: null, user: null };
    const next = authReducer(start, setCredentials({ token: 't', user }));
    expect(next.token).toBe('t');
    expect(next.user).toEqual(user);
    expect(localStorage.getItem(TOKEN_STORAGE_KEY)).toBe('t');
  });

  it('clearCredentials clears state and removes persisted token', () => {
    localStorage.setItem(TOKEN_STORAGE_KEY, 't');
    const start: AuthState = { token: 't', user };
    const next = authReducer(start, clearCredentials());
    expect(next.token).toBeNull();
    expect(next.user).toBeNull();
    expect(localStorage.getItem(TOKEN_STORAGE_KEY)).toBeNull();
  });

  it('initialState reads persisted token', async () => {
    localStorage.setItem(TOKEN_STORAGE_KEY, 'persisted-tk');
    // 重置模块缓存，使 initialState 在带 token 的 localStorage 下重新求值
    vi.resetModules();
    const mod = await import('../../src/store/slices/authSlice');
    const initial = mod.default(undefined, { type: '@@INIT' });
    expect(initial.token).toBe('persisted-tk');
  });
});