/**
 * Browser smoke for 策研 Strategy Lab frontend.
 * Usage: PLAYWRIGHT_BROWSERS_PATH=... node scripts/browser-smoke.mjs [baseURL]
 * Requires the Vite dev server (frontend/ npm run dev, /api proxying to backend).
 */
import { chromium } from 'playwright';

const base = process.argv[2] ?? 'http://127.0.0.1:8788';

const browser = await chromium.launch();
const page = await browser.newPage();
const pageErrors = [];
page.on('pageerror', (e) => pageErrors.push(String(e)));
page.on('response', (r) => {
  if (r.status() >= 500) pageErrors.push(`${r.status} ${r.url()}`);
});

await page.goto(`${base}/#/login`, { waitUntil: 'networkidle' });
const t1 = await page.evaluate(() => document.body.innerText);
if (!t1.includes('邮箱') || !t1.includes('登录')) throw new Error(`login page missing content: ${t1.slice(0, 100)}`);

await page.goto(`${base}/#/register`, { waitUntil: 'networkidle' });
if (!(await page.$('form'))) throw new Error('register form missing');

await page.goto(`${base}/#/reset`, { waitUntil: 'networkidle' });
if ((await page.$$eval('input', (els) => els.length)) < 3) throw new Error('reset inputs missing');

// wrong password flow must NOT navigate to app, must render error banner
await page.goto(`${base}/#/login`, { waitUntil: 'networkidle' });
await page.fill('#le', 'smoke@example.invalid');
await page.fill('#lp', 'wrong-password');
await page.click('button[type="submit"]');
await page.waitForTimeout(1200);
const t2 = await page.evaluate(() => document.body.innerText);
if (!t2.includes('不正确') && !t2.includes('HTTP') && !t2.includes('出错')) {
  throw new Error(`expected visible login error, got: ${t2.slice(0, 160)}`);
}

for (const h of ['projects', 'datasets', 'runs', 'usage', 'account', 'admin']) {
  await page.goto(`${base}/#/${h}`, { waitUntil: 'networkidle' });
  const has = await page.evaluate(() => document.body.innerText.length > 50);
  if (!has) throw new Error(`route ${h} rendered empty`);
}

if (pageErrors.length > 0) {
  throw new Error(`page errors: ${pageErrors.slice(0, 5).join('; ')}`);
}
console.log('BROWSER SMOKE OK', { pageErrors: pageErrors.length });
await browser.close();