import { createServer, type Server } from 'node:http';
import { expect, test, type Page } from '@playwright/test';
import {
  cleanupSeededAlbums,
  createEmbedSlot,
  flushOutbox,
  flushSync,
  seedAlbum,
  seedPhoto,
  updateEmbedSlot,
} from './helpers';

// UI-04 v2（vertical-stream 照片流窗）跨源 Playwright：宿主 127.0.0.1:3999 ←
// viewer 5175 真跨源，loader /embed/v2/loader.js。随 E01-E07 逐任务扩展：
// E01 出口门 = 固定 195×280 小窗跨源可见且无 footer（本文件首批用例）。
const HOST_PORT = 3999;
const VIEWER_ORIGIN = 'http://127.0.0.1:5175';
const MINUTE = 60_000;

let slotToken = '';

async function seedFeed(alias: string): Promise<string> {
  const album = await seedAlbum({
    alias,
    defaultLocale: 'zh-CN',
    translations: [
      { locale: 'zh-CN', title: `${alias} 中文相册` },
      { locale: 'en', title: `${alias} Album` },
    ],
  });
  for (let i = 1; i <= 6; i++) {
    await seedPhoto(album.id, `${alias}-p${i}`, {
      publishedAt: new Date(Date.now() - (7 - i) * MINUTE),
    });
  }
  await flushSync(album.id);
  const slot = await createEmbedSlot(`ui04-v2-${alias}`);
  // v2 模式显式提交（E01 契约：displayMode vertical-stream + 速度/气泡）
  await updateEmbedSlot(slot.id, {
    albumId: album.id,
    settings: {
      position: 'right',
      size: 'md',
      intervalMs: 5000,
      lang: 'auto',
      collapsedDefault: false,
      imageFit: 'contain',
      offsetX: 16,
      offsetBottom: 24,
      zIndex: 1000,
      displayMode: 'vertical-stream',
      scrollSpeed: 16,
      reactionsEnabled: true,
    },
  });
  await flushOutbox();
  return slot.token;
}

let currentHtml = '';
const server: Server = createServer((_req, res) => {
  res.setHeader('content-type', 'text/html; charset=utf-8');
  res.end(currentHtml);
});

async function openHost(page: Page, viewport: { width: number; height: number }): Promise<void> {
  await page.setViewportSize(viewport);
  currentHtml = `<!doctype html>
<html lang="zh-CN">
  <head><meta charset="utf-8" /><meta name="viewport" content="width=device-width, initial-scale=1.0" />
  <title>UI-04 v2 host</title></head>
  <body style="min-height: 1200px; font-family: system-ui">
    <h1>Host page (v2 stream)</h1>
    <script src="${VIEWER_ORIGIN}/embed/v2/loader.js" data-slot="${slotToken}" defer></script>
  </body>
</html>`;
  await page.goto(`http://127.0.0.1:${HOST_PORT}`);
}

test.beforeAll(async () => {
  slotToken = await seedFeed('ui04v2');
  await new Promise<void>((resolve) => server.listen(HOST_PORT, '127.0.0.1', resolve));
});

test.afterAll(async () => {
  await cleanupSeededAlbums();
  server.close();
});

test.describe.serial('E01 exit gate: fixed window, no footer', () => {
  for (const [name, viewport] of [
    ['desktop 1440x900', { width: 1440, height: 900 }],
    ['mobile 390x844', { width: 390, height: 844 }],
  ] as const) {
    test(`v2 window is fixed 195x280 on ${name}`, async ({ page }) => {
      const mobile = viewport.width < 480;
      await openHost(page, viewport);
      const frame = page.locator('iframe[src*="/embed/"][src*="v=2"]');
      const wrapper = frame.locator('..');
      // 手机默认收起（沿用 v1 策略）：点击把手展开后测量。
      if (mobile) {
        await page.locator('[role="button"]').first().click();
      }
      await expect(frame).toBeVisible();
      await expect
        .poll(async () => Math.round((await wrapper.boundingBox())?.width ?? 0))
        .toBe(195);
      await expect
        .poll(async () => Math.round((await wrapper.boundingBox())?.height ?? 0))
        .toBe(280);
      // iframe 内：无 header/footer（E01 静态壳）；右上收起按钮存在。
      const inside = page.frameLocator('iframe[src*="/embed/"][src*="v=2"]');
      await expect(inside.getByRole('button', { name: /收起照片窗|Collapse photo window/ })).toBeVisible();
      // v1 结构不出现（判别渲染 DOM 而非原始 HTML——dev 模式内联 CSS 含全部
      // scoped 类名，字符串断言会误报；「活动照片」字样亦存在于照片 alt 文案）。
      await expect(inside.locator('.embed-head')).toHaveCount(0);
      await expect(inside.locator('.embed-footer')).toHaveCount(0);
      await expect(inside.getByText('查看相册')).toHaveCount(0);
      await expect(inside.getByText('照片轮播')).toHaveCount(0);
      await expect(inside.locator('.stream-viewport')).toHaveCount(1);
    });
  }
});