import { describe, it, expect, beforeEach } from 'vitest';
import { http, HttpResponse } from 'msw';
import { server } from '../test/server';
import { setAccessToken, getAccessToken } from './client';
import { login, register, refresh, logout, getMe, updateProfile } from './auth';

const API = '/api/v1';

beforeEach(() => {
  setAccessToken(null);
});

describe('login', () => {
  it('returns auth data and sets access token', async () => {
    const result = await login('user@test.com', 'password');
    expect(result.user.email).toBe('user@test.com');
    expect(result.accessToken).toBe('mock-access-token');
    expect(getAccessToken()).toBe('mock-access-token');
  });

  it('throws on invalid credentials', async () => {
    server.use(
      http.post(
        `${API}/auth/login`,
        () => new HttpResponse(null, { status: 401, statusText: 'Unauthorized' }),
      ),
    );
    await expect(login('wrong@test.com', 'wrong')).rejects.toThrow();
  });
});

describe('register', () => {
  it('returns auth data and sets access token', async () => {
    const result = await register('new@test.com', 'password', 'New User');
    expect(result.user.email).toBe('user@test.com');
    expect(getAccessToken()).toBe('mock-access-token');
  });
});

describe('refresh', () => {
  it('returns auth data and sets access token', async () => {
    const result = await refresh();
    expect(result.accessToken).toBe('mock-access-token');
    expect(getAccessToken()).toBe('mock-access-token');
  });
});

describe('logout', () => {
  it('clears access token', async () => {
    setAccessToken('test-token');
    await logout();
    expect(getAccessToken()).toBeNull();
  });
});

describe('getMe', () => {
  it('returns current user', async () => {
    const result = await getMe();
    expect(result.email).toBe('user@test.com');
  });
});

describe('updateProfile', () => {
  it('updates and returns user', async () => {
    const result = await updateProfile({ name: 'Updated' });
    expect(result.name).toBe('Updated');
  });
});