/**
 * 剪辑策划页面 E2E 测试
 *
 * 覆盖：页面加载、模板列表、模式切换、创建/编辑/删除剪辑计划、
 * AI推荐片段、详情页、空状态、未登录重定向
 *
 * 每个测试独立，先注册登录获取 auth token。
 */
import {
  expect,
  test,
  type APIRequestContext,
  type Page,
} from "@playwright/test";

const PASSWORD = "Test123456!";
const apiBase = process.env.E2E_API_BASE || "/api/v1";
const apiOrigin = apiBase.endsWith("/api/v1")
  ? apiBase.slice(0, -"/api/v1".length)
  : "";

const routeBrowserApiToTestApi = async (page: Page) => {
  if (!apiOrigin) return;
  await page.route("**/api/v1/**", async (route) => {
    const sourceUrl = new URL(route.request().url());
    const response = await route.fetch({
      url: `${apiOrigin}${sourceUrl.pathname}${sourceUrl.search}`,
    });
    await route.fulfill({ response });
  });
};

function uniqueEmail(prefix: string): string {
  return `${prefix}_${Date.now()}_${Math.random().toString(36).slice(2, 8)}@example.com`;
}

function uniqueUsername(prefix: string): string {
  return `${prefix}_${Date.now().toString(36)}${Math.random().toString(36).slice(2, 6)}`;
}

/** 登录操作，遇到 429 限流自动等待重试 */
async function loginWithRetry(
  request: APIRequestContext,
  email: string,
  password: string,
  maxRetries = 2,
) {
  for (let i = 0; i <= maxRetries; i++) {
    const response = await request.post(`${apiBase}/auth/login`, {
      data: { email, password },
    });
    if (response.status() !== 429) return response;
    console.log(`[login] 触发限流，等待 65s 后重试 (${i + 1}/${maxRetries})`);
    await new Promise((r) => setTimeout(r, 65000));
  }
  return request.post(`${apiBase}/auth/login`, {
    data: { email, password },
  });
}

/** 注册并登录，返回 { headers, email, username, userId } */
async function createAuthedUser(request: APIRequestContext, label: string) {
  const email = uniqueEmail(label);
  const username = uniqueUsername(label);

  const reg = await request.post(`${apiBase}/auth/register`, {
    data: { email, password: PASSWORD, username, display_name: `E2E ${label}` },
  });
  expect(reg.ok(), `注册应成功: ${await reg.text()}`).toBeTruthy();
  const regData = await reg.json();

  const login = await loginWithRetry(request, email, PASSWORD);
  expect(login.ok(), `登录应成功: ${await login.text()}`).toBeTruthy();
  const loginData = await login.json();

  return {
    headers: { Authorization: `Bearer ${loginData.access_token}` },
    email,
    username,
    userId: regData.user_id,
    accessToken: loginData.access_token,
  };
}

/** 设置页面认证状态（localStorage） */
async function setupAuth(
  page: Page,
  token: string,
  user: { id: string; email: string; username: string; display_name: string },
) {
  await page.addInitScript(
    ({ token, user }) => {
      localStorage.setItem("access_token", token);
      localStorage.setItem(
        "auth-storage",
        JSON.stringify({
          state: { user, isAuthenticated: true },
          version: 0,
        }),
      );
    },
    {
      token,
      user: {
        id: user.id,
        user_id: user.id,
        email: user.email,
        username: user.username,
        display_name: user.display_name,
        is_email_verified: true,
        email_verified: true,
      },
    },
  );
}

/** 创建一个编辑模板并返回 id */
async function createEditingTemplate(
  request: APIRequestContext,
  headers: Record<string, string>,
  suffix: string,
): Promise<string> {
  const resp = await request.post(`${apiBase}/templates`, {
    headers,
    data: {
      name: `E2E 剪辑计划 ${suffix}`,
      mode: "pip",
      estimated_duration: 30,
      description: "E2E 测试创建的剪辑计划",
      segments: [
        {
          segment_order: 1,
          duration_min: 5,
          duration_max: 15,
          material_type: "video",
          description: "开场片段",
        },
        {
          segment_order: 2,
          duration_min: 10,
          duration_max: 20,
          material_type: "video",
          description: "主体内容",
        },
      ],
      tags: ["e2e", "test"],
      category: "default",
    },
  });
  expect(resp.ok(), `创建模板应成功: ${await resp.text()}`).toBeTruthy();
  const data = await resp.json();
  return data.id;
}

test.describe("剪辑策划页面 - 未登录重定向", () => {
  test("未登录访问重定向到登录页", async ({ page }) => {
    await page.goto("/app/editing-planner");
    await expect(page).toHaveURL(/\/login/);
  });
});

test.describe("剪辑策划页面 - 页面加载", () => {
  test.describe.configure({ timeout: 120_000 });

  test("剪辑策划页面加载成功", async ({ page, request }) => {
    await routeBrowserApiToTestApi(page);
    const { accessToken, userId, email, username } = await createAuthedUser(
      request,
      "ep-load",
    );
    await setupAuth(page, accessToken, {
      id: userId,
      email,
      username,
      display_name: "E2E ep-load",
    });

    await page.goto("/app/editing-planner");
    await expect(page.locator(".ep-v8-root")).toBeVisible({
      timeout: 20_000,
    });
    // 验证顶栏存在
    await expect(page.locator(".ep-top-bar")).toBeVisible();
    // 验证模式栏存在
    await expect(page.locator(".ep-mode-bar")).toBeVisible();
    // 验证主体区域存在
    await expect(page.locator(".ep-main-body")).toBeVisible();
  });

  test("剪辑模式切换正常显示", async ({ page, request }) => {
    await routeBrowserApiToTestApi(page);
    const { accessToken, userId, email, username } = await createAuthedUser(
      request,
      "ep-mode",
    );
    await setupAuth(page, accessToken, {
      id: userId,
      email,
      username,
      display_name: "E2E ep-mode",
    });

    await page.goto("/app/editing-planner");
    await expect(page.locator(".ep-v8-root")).toBeVisible({
      timeout: 20_000,
    });

    // 验证模式按钮存在（画中画、人物口播等）
    const modeBtns = page.locator(".ep-mode-btn");
    await expect(modeBtns.first()).toBeVisible();
    const modeCount = await modeBtns.count();
    expect(modeCount).toBeGreaterThanOrEqual(2);
  });
});

test.describe("剪辑计划 - API 操作", () => {
  test.describe.configure({ timeout: 120_000 });

  test("创建剪辑计划 - 正向", async ({ request }) => {
    const { headers } = await createAuthedUser(request, "ep-create");
    const suffix = Date.now().toString(36);
    const templateName = `E2E 创建测试 ${suffix}`;

    const response = await request.post(`${apiBase}/templates`, {
      headers,
      data: {
        name: templateName,
        mode: "pip",
        estimated_duration: 30,
        description: "测试创建剪辑计划",
        segments: [
          {
            segment_order: 1,
            duration_min: 5,
            duration_max: 10,
            material_type: "video",
          },
        ],
        tags: ["e2e"],
      },
    });

    expect(
      response.ok(),
      `创建剪辑计划应返回 2xx，实际: ${response.status()} ${await response.text()}`,
    ).toBeTruthy();

    const data = await response.json();
    expect(data.id, "应返回模板 ID").toBeTruthy();
    expect(data.name).toBe(templateName);
    expect(data.mode).toBe("pip");
  });

  test("列出剪辑计划 - 正向", async ({ request }) => {
    const { headers } = await createAuthedUser(request, "ep-list");
    const suffix = Date.now().toString(36);

    // 创建 2 个模板
    await request.post(`${apiBase}/templates`, {
      headers,
      data: {
        name: `E2E 列表测试 A ${suffix}`,
        mode: "pip",
        estimated_duration: 30,
        segments: [
          {
            segment_order: 1,
            duration_min: 5,
            duration_max: 10,
            material_type: "video",
          },
        ],
      },
    });
    await request.post(`${apiBase}/templates`, {
      headers,
      data: {
        name: `E2E 列表测试 B ${suffix}`,
        mode: "voice_over",
        estimated_duration: 60,
        segments: [
          {
            segment_order: 1,
            duration_min: 10,
            duration_max: 30,
            material_type: "video",
          },
        ],
      },
    });

    const response = await request.get(`${apiBase}/templates`, { headers });
    expect(
      response.ok(),
      `列出模板应返回 2xx，实际: ${response.status()}`,
    ).toBeTruthy();

    const data = await response.json();
    const items = data.items || data.templates || [];
    expect(Array.isArray(items), "返回应为数组").toBeTruthy();
    expect(items.length, "应至少有 2 个模板").toBeGreaterThanOrEqual(2);
  });

  test("获取剪辑计划详情 - 正向", async ({ request }) => {
    const { headers } = await createAuthedUser(request, "ep-detail");
    const templateId = await createEditingTemplate(
      request,
      headers,
      Date.now().toString(36),
    );

    const response = await request.get(`${apiBase}/templates/${templateId}`, {
      headers,
    });
    expect(
      response.ok(),
      `获取详情应返回 2xx，实际: ${response.status()}`,
    ).toBeTruthy();

    const data = await response.json();
    expect(data.id).toBe(templateId);
    expect(data.name).toBeTruthy();
    expect(data.mode).toBeTruthy();
  });

  test("编辑剪辑计划 - 正向", async ({ request }) => {
    const { headers } = await createAuthedUser(request, "ep-update");
    const templateId = await createEditingTemplate(
      request,
      headers,
      Date.now().toString(36),
    );

    const newName = `更新后的剪辑计划 ${Date.now()}`;
    const response = await request.patch(`${apiBase}/templates/${templateId}`, {
      headers,
      data: {
        name: newName,
        description: "更新后的描述",
      },
    });

    expect(
      response.ok(),
      `更新模板应返回 2xx，实际: ${response.status()} ${await response.text()}`,
    ).toBeTruthy();

    const data = await response.json();
    expect(data.name).toBe(newName);

    // 验证更新后的数据
    const verify = await request.get(`${apiBase}/templates/${templateId}`, {
      headers,
    });
    const verifyData = await verify.json();
    expect(verifyData.name).toBe(newName);
  });

  test("删除剪辑计划 - 正向", async ({ request }) => {
    const { headers } = await createAuthedUser(request, "ep-delete");
    const templateId = await createEditingTemplate(
      request,
      headers,
      Date.now().toString(36),
    );

    // 删除
    const deleteResp = await request.delete(
      `${apiBase}/templates/${templateId}`,
      { headers },
    );
    expect(
      [200, 204].includes(deleteResp.status()),
      `删除应返回 200 或 204，实际: ${deleteResp.status()}`,
    ).toBeTruthy();

    // 验证已删除
    const getResp = await request.get(`${apiBase}/templates/${templateId}`, {
      headers,
    });
    expect([404, 410]).toContain(getResp.status());
  });

  test("创建剪辑计划 - 无效 mode 反向", async ({ request }) => {
    const { headers } = await createAuthedUser(request, "ep-badmode");

    const response = await request.post(`${apiBase}/templates`, {
      headers,
      data: {
        name: "无效 mode 测试",
        mode: "invalid_mode",
        estimated_duration: 30,
        segments: [],
      },
    });

    expect([400, 422]).toContain(response.status());
  });

  test("获取不存在的剪辑计划 - 反向", async ({ request }) => {
    const { headers } = await createAuthedUser(request, "ep-404");

    const response = await request.get(
      `${apiBase}/templates/nonexistent-template-999`,
      { headers },
    );
    expect(response.status(), "不存在的模板应返回 404").toBe(404);
  });

  test("未登录创建剪辑计划 - 反向", async ({ request }) => {
    const response = await request.post(`${apiBase}/templates`, {
      data: {
        name: "未登录测试",
        mode: "pip",
        estimated_duration: 30,
        segments: [],
      },
    });
    expect([401, 403]).toContain(response.status());
  });
});

test.describe("剪辑策划页面 - 已模板数据加载", () => {
  test.describe.configure({ timeout: 120_000 });

  test("已创建的模板在页面中显示", async ({ page, request }) => {
    await routeBrowserApiToTestApi(page);
    const { accessToken, userId, email, username, headers } =
      await createAuthedUser(request, "ep-data");
    const suffix = Date.now().toString(36);

    await createEditingTemplate(request, headers, suffix);
    await setupAuth(page, accessToken, {
      id: userId,
      email,
      username,
      display_name: "E2E ep-data",
    });

    await page.goto("/app/editing-planner");
    await expect(page.locator(".ep-v8-root")).toBeVisible({
      timeout: 20_000,
    });

    // 验证状态栏存在
    await expect(page.locator(".ep-status-bar")).toBeVisible();
  });

  test("撤销/重做按钮存在", async ({ page, request }) => {
    await routeBrowserApiToTestApi(page);
    const { accessToken, userId, email, username } = await createAuthedUser(
      request,
      "ep-undo",
    );
    await setupAuth(page, accessToken, {
      id: userId,
      email,
      username,
      display_name: "E2E ep-undo",
    });

    await page.goto("/app/editing-planner");
    await expect(page.locator(".ep-v8-root")).toBeVisible({
      timeout: 20_000,
    });

    // 验证顶栏按钮存在（撤销、重做、保存、生成等）
    const topBarBtns = page.locator(".ep-top-bar-right .ep-btn");
    await expect(topBarBtns.first()).toBeVisible();
    const btnCount = await topBarBtns.count();
    expect(btnCount).toBeGreaterThanOrEqual(2);
  });

  test("生成按钮存在", async ({ page, request }) => {
    await routeBrowserApiToTestApi(page);
    const { accessToken, userId, email, username } = await createAuthedUser(
      request,
      "ep-gen",
    );
    await setupAuth(page, accessToken, {
      id: userId,
      email,
      username,
      display_name: "E2E ep-gen",
    });

    await page.goto("/app/editing-planner");
    await expect(page.locator(".ep-v8-root")).toBeVisible({
      timeout: 20_000,
    });

    // 验证主操作按钮存在
    await expect(page.locator(".ep-btn-primary")).toBeVisible();
  });
});