import { test, expect, APIRequestContext } from '@playwright/test';
import { config as dotenvConfig } from 'dotenv';
import path from 'path';

// 加载项目根目录的 .env.local，使 E2E 测试与 dev/preview 服务器使用相同的 CMS_REVALIDATE_SECRET
// Playwright 配置已负责设置 process.env，此处仅做兜底加载，不再 override 以避免覆盖 webServer 环境变量
dotenvConfig({ path: path.resolve(__dirname, '../.env.local') });

// CMS 工作流依赖共享数据库与角色权限，浏览器差异可忽略，仅在 chromium 项目运行以避免跨 project 数据竞争
test.skip(({ browserName }) => browserName !== 'chromium', 'CMS workflow test runs only in chromium');

/**
 * CMS 内容发布工作流 E2E 测试
 *
 * 覆盖完整流程：管理员登录 → 创建草稿 → 提交审核 → 审核通过 → 前台可见
 * 以及多角色权限分离：管理员配置权限 → 编辑创建/提交 → 审核员发布 → 前台可见
 */

const ADMIN_CREDENTIALS = { username: 'admin', password: 'admin123' };
const EDITOR_CREDENTIALS = { username: 'e2e_editor', password: 'editor123' };
const REVIEWER_CREDENTIALS = { username: 'e2e_reviewer', password: 'reviewer123' };
const BASE_URL = process.env.E2E_BASE_URL || 'http://localhost:3000';
const REVALIDATE_SECRET = process.env.CMS_REVALIDATE_SECRET || 'e2e-test-secret';

// 跟踪当前测试创建的内容条目 ID，afterEach 只清理当前测试的数据，避免并行/跨 project 误删
const createdItemIds: string[] = [];

test.setTimeout(120000);

async function deleteItemsByIds(request: APIRequestContext, token: string, ids: string[]): Promise<void> {
  if (ids.length === 0) return;

  await Promise.all(
    ids.map((id) =>
      request.delete(`${BASE_URL}/api/admin/items?id=${id}`, {
        headers: { Authorization: `Bearer ${token}` },
      })
    )
  );
}

async function cleanupStaleE2ENews(request: APIRequestContext, token: string): Promise<void> {
  const response = await request.get(`${BASE_URL}/api/admin/items`, {
    headers: { Authorization: `Bearer ${token}` },
    params: { modelCode: 'news', pageSize: '1000' },
  });

  if (!response.ok()) {
    console.warn('Failed to fetch news items for cleanup:', await response.text());
    return;
  }

  const body = await response.json();
  const items = (body.items || body.data || []) as Array<{ id: string; title: string }>;
  const staleItems = items.filter((item) => item.title?.startsWith('E2E 测试新闻'));

  await deleteItemsByIds(
    request,
    token,
    staleItems.map((item) => item.id)
  );
}

test.beforeAll(async ({ request }) => {
  // 清理历史残留 E2E 测试数据（仅在 chromium 项目执行，不会误删其他 project 数据）
  const token = await loginAdmin(request);
  await cleanupStaleE2ENews(request, token);
});

test.afterEach(async ({ request }) => {
  const token = await loginAdmin(request);
  // 优先按 ID 清理当前测试创建的条目，避免误删其他并行测试的数据
  const ids = createdItemIds.splice(0);
  await deleteItemsByIds(request, token, ids);
  // 再兜底清理历史残留
  await cleanupStaleE2ENews(request, token);
});

async function login(
  request: APIRequestContext,
  credentials: { username: string; password: string }
): Promise<string> {
  const loginResponse = await request.post(`${BASE_URL}/api/auth/login`, {
    data: credentials,
    headers: { 'Content-Type': 'application/json' },
  });

  expect(loginResponse.ok()).toBeTruthy();
  const loginBody = await loginResponse.json();
  expect(loginBody.accessToken).toBeTruthy();
  return loginBody.accessToken as string;
}

async function loginAdmin(request: APIRequestContext): Promise<string> {
  return login(request, ADMIN_CREDENTIALS);
}

async function getNewsModelId(request: APIRequestContext, token: string): Promise<string> {
  const response = await request.get(`${BASE_URL}/api/admin/models`, {
    headers: { Authorization: `Bearer ${token}` },
  });

  expect(response.ok()).toBeTruthy();
  const models = await response.json();
  const newsModel = models.find((m: { code: string }) => m.code === 'news');
  expect(newsModel).toBeTruthy();
  return newsModel.id;
}

async function createNewsDraft(
  request: APIRequestContext,
  token: string,
  suffix: string,
  modelId?: string
): Promise<{ id: string; slug: string; title: string }> {
  const title = `E2E 测试新闻 ${suffix}`;
  const slug = `e2e-test-news-${suffix}`;
  const resolvedModelId = modelId || (await getNewsModelId(request, token));

  const response = await request.post(`${BASE_URL}/api/admin/items`, {
    data: {
      modelId: resolvedModelId,
      modelCode: 'news',
      title,
      slug,
      status: 'draft',
      data: {
        id: slug,
        excerpt: `这是 E2E 测试摘要 ${suffix}`,
        date: new Date().toISOString().split('T')[0],
        category: '公司新闻',
        image: '/images/placeholder-news.jpg',
        content: `<p>E2E 测试正文内容 ${suffix}</p>`,
        featured: false,
      },
    },
    headers: {
      'Content-Type': 'application/json',
      Authorization: `Bearer ${token}`,
    },
  });

  expect(response.ok()).toBeTruthy();
  const body = await response.json();
  expect(body.status).toBe('draft');

  createdItemIds.push(body.id);
  return { id: body.id, slug, title };
}

async function submitForReview(
  request: APIRequestContext,
  token: string,
  itemId: string
): Promise<void> {
  const response = await request.post(`${BASE_URL}/api/admin/items/${itemId}/workflow`, {
    data: { action: 'submit' },
    headers: {
      'Content-Type': 'application/json',
      Authorization: `Bearer ${token}`,
    },
  });

  expect(response.ok()).toBeTruthy();
  const body = await response.json();
  expect(body.status).toBe('review');
}

async function approveItem(
  request: APIRequestContext,
  token: string,
  itemId: string
): Promise<{ status: string; slug: string }> {
  const response = await request.post(`${BASE_URL}/api/admin/items/${itemId}/workflow`, {
    data: { action: 'approve' },
    headers: {
      'Content-Type': 'application/json',
      Authorization: `Bearer ${token}`,
    },
  });

  expect(response.ok()).toBeTruthy();
  const body = await response.json();
  expect(body.status).toBe('published');
  return body;
}

async function revalidateNews(request: APIRequestContext, slug: string): Promise<void> {
  const response = await request.post(`${BASE_URL}/api/cms/revalidate`, {
    data: {
      event: 'content.published',
      modelCode: 'news',
      slug,
      secret: REVALIDATE_SECRET,
    },
    headers: { 'Content-Type': 'application/json' },
  });

  const responseBody = await response.text();
  console.log('[DEBUG] revalidate status=%s body=%s', response.status(), responseBody);

  expect(response.ok()).toBeTruthy();
  const body = JSON.parse(responseBody);
  expect(body.code).toBe(0);
  expect(body.data.revalidatedPaths).toContain('/news');
  expect(body.data.revalidatedPaths).toContain(`/news/${slug}`);
}

async function ensureRolePermissions(
  request: APIRequestContext,
  adminToken: string,
  roleCode: string,
  permissions: Array<{ modelCode: string; action: string }>
): Promise<void> {
  const response = await request.put(`${BASE_URL}/api/admin/roles`, {
    data: { roleCode, permissions },
    headers: {
      'Content-Type': 'application/json',
      Authorization: `Bearer ${adminToken}`,
    },
  });

  expect(response.ok()).toBeTruthy();
  const body = await response.json();
  expect(body.roleCode).toBe(roleCode);
  expect(body.permissions).toHaveLength(permissions.length);
}

async function verifyNewsVisibleOnFrontend(
  page: import('@playwright/test').Page,
  request: APIRequestContext,
  slug: string,
  title: string,
  suffix: string
): Promise<void> {
  // 先用 API context 拉取本地页面，确认服务端渲染正常
  const apiResponse = await request.get(`${BASE_URL}/news/${slug}`);
  const apiHtml = await apiResponse.text();
  console.log('[DEBUG] api status=%s title=%s', apiResponse.status(), apiHtml.match(/<title>([^<]+)<\/title>/)?.[1]);

  // 直接访问详情页验证 ISR 刷新后的内容可见（比列表页更稳定，避免整页缓存波动）
  await page.goto(`/news/${slug}`, { waitUntil: 'domcontentloaded', timeout: 30000 });

  const currentUrl = page.url();
  const h1Text = (await page.locator('h1').first().textContent().catch(() => '')) || '';
  console.log('[DEBUG] page.url=%s h1=%s expected title=%s', currentUrl, h1Text, title);

  await expect
    .poll(
      async () => {
        const text = (await page.locator('h1').first().textContent().catch(() => '')) || '';
        return text.includes(title);
      },
      { timeout: 20000, intervals: [1000, 2000, 2000] }
    )
    .toBe(true);

  await expect(page.locator('body')).toContainText(`E2E 测试正文内容 ${suffix}`);
}

test.describe('CMS 内容发布工作流', { tag: '@critical' }, () => {
  // 同一 worker 内串行执行，避免共享 DB/角色权限在并行时相互影响
  test.describe.configure({ mode: 'serial' });

  test('admin 可完成 创建草稿 → 提交审核 → 发布 → 前台可见', async ({ request, page }) => {
    const suffix = `${Date.now()}-${Math.random().toString(36).slice(2, 8)}`;

    const token = await loginAdmin(request);
    const { id, slug, title } = await createNewsDraft(request, token, suffix);
    console.log('[DEBUG] created item id=%s slug=%s title=%s', id, slug, title);
    await submitForReview(request, token, id);
    const afterApprove = await approveItem(request, token, id);
    console.log('[DEBUG] after approve status=%s slug=%s', afterApprove.status, afterApprove.slug);
    await revalidateNews(request, slug);
    console.log('[DEBUG] revalidate done, navigating to /news/%s', slug);
    await verifyNewsVisibleOnFrontend(page, request, slug, title, suffix);
  });

  test('非法状态流转会被拦截', async ({ request }) => {
    const suffix = `${Date.now()}-${Math.random().toString(36).slice(2, 8)}`;
    const token = await loginAdmin(request);
    const { id } = await createNewsDraft(request, token, suffix);

    const response = await request.post(`${BASE_URL}/api/admin/items/${id}/workflow`, {
      data: { action: 'approve' },
      headers: {
        'Content-Type': 'application/json',
        Authorization: `Bearer ${token}`,
      },
    });

    expect(response.status()).toBe(400);
    const body = await response.json();
    expect(body.error).toContain('当前状态 draft 不允许审核通过');
  });

  test('多角色权限分离：管理员配置权限 → 编辑创建/提交 → 审核员发布 → 前台可见', async ({
    request,
    page,
  }) => {
    const suffix = `${Date.now()}-${Math.random().toString(36).slice(2, 8)}`;

    // 1. 管理员登录并获取模型 ID，然后配置角色权限
    const adminToken = await loginAdmin(request);
    const newsModelId = await getNewsModelId(request, adminToken);
    await ensureRolePermissions(request, adminToken, 'content_editor', [
      { modelCode: 'news', action: 'create' },
      { modelCode: 'news', action: 'read' },
      { modelCode: 'news', action: 'update' },
    ]);
    await ensureRolePermissions(request, adminToken, 'reviewer', [
      { modelCode: 'news', action: 'read' },
      { modelCode: 'news', action: 'publish' },
    ]);

    // 2. 编辑创建草稿并提交审核（模型 ID 由管理员提供，编辑无需 content-model 读取权限）
    const editorToken = await login(request, EDITOR_CREDENTIALS);
    const { id, slug, title } = await createNewsDraft(request, editorToken, suffix, newsModelId);
    await submitForReview(request, editorToken, id);

    // 3. 编辑尝试直接审核通过，应被 403 拒绝
    const editorApproveResponse = await request.post(
      `${BASE_URL}/api/admin/items/${id}/workflow`,
      {
        data: { action: 'approve' },
        headers: {
          'Content-Type': 'application/json',
          Authorization: `Bearer ${editorToken}`,
        },
      }
    );
    expect(editorApproveResponse.status()).toBe(403);

    // 4. 审核员审核通过
    const reviewerToken = await login(request, REVIEWER_CREDENTIALS);
    await approveItem(request, reviewerToken, id);

    // 5. 刷新 ISR 缓存并验证前台可见
    await revalidateNews(request, slug);
    await verifyNewsVisibleOnFrontend(page, request, slug, title, suffix);
  });
});