import assert from 'node:assert/strict';
import { after, before, describe, it } from 'node:test';
import type { Browser } from 'playwright-core';
import { launch, settle, visit, VIEWPORTS } from './harness.ts';

type ObservedWindow = Window & { libraryScopeRequests: string[] };

describe('媒体库目录范围', () => {
  let browser: Browser;
  before(async () => { browser = await launch() });
  after(async () => { await browser?.close() });

  for (const viewport of VIEWPORTS) {
    it(`${viewport.name}：切换媒体库和返回全部时目录与筛选使用同一范围`, async () => {
      const opened = await visit(browser, '/', viewport, async page => {
        await page.addInitScript(() => {
          // 每个 Document 独立观测；上一页延迟发出的请求留在上一页的数组中。
          const requests: string[] = [];
          (window as ObservedWindow).libraryScopeRequests = requests;
          const fetch = window.fetch.bind(window);
          window.fetch = (input, init) => {
            const url = new URL(input instanceof Request ? input.url : String(input), location.href);
            if (/^\/api\/(items|facets)$/.test(url.pathname)) requests.push(url.href);
            return fetch(input, init);
          };
        });
        await page.route('**/api/libraries', route => route.fulfill({ json: {
          libraries: [{ id: 'first', name: '媒体库甲' }, { id: 'second', name: '媒体库乙' }],
        } }));
      });
      const { page } = opened;
      try {
        for (const [library, label] of [['first', '媒体库甲'], ['second', '媒体库乙'], ['', '全部媒体库']]) {
          if (viewport.mobile && !await page.locator('#drawer').evaluate(node => node.classList.contains('open'))) {
            await page.locator('#filterBtn').click();
          }
          await page.locator('#brandHome').click();
          const choice = page.locator('#boardLibraryMenu').getByRole('button', { name: label, exact: true });
          await choice.waitFor({ state: 'visible' });
          const previousDocument = await page.evaluate(() => performance.timeOrigin);
          await Promise.all([page.waitForEvent('load'), choice.click()]);
          await page.locator('#brandHome h1').filter({ hasText: label }).waitFor();
          await page.waitForFunction(() => document.querySelector('#main [aria-busy="true"]') === null);
          await settle(page);
          const observed = await page.evaluate(() => ({
            document: performance.timeOrigin, requests: (window as ObservedWindow).libraryScopeRequests,
          }));
          assert.notEqual(observed.document, previousDocument);
          const current = observed.requests.map(url => new URL(url));
          assert.ok(current.some(url => url.pathname === '/api/items'));
          assert.ok(current.some(url => url.pathname === '/api/facets'));
          assert.ok(current.every(url => (url.searchParams.get('library') || '') === library), observed.requests.join('\n'));
        }
        assert.deepEqual(opened.problems, []);
      } finally { await opened.close() }
    });
  }
});