/**
 * Core pages QA (real API): routes × widths → screenshots + checks (overflow, console errors, failed requests,
 * tap targets < 44 px on phones, "undefined/NaN/null" text). Output: qa/screens/core/<route>-<width>.png + report.json.
 *
 *   node qa/core-qa.mjs [BASE_URL] [--quick] [--routes=/a,/b] [--widths=390,1440]
 */
import { chromium } from '/Users/simon-pierreboucher/Desktop/uqo-eval/node_modules/playwright/index.mjs';
import { mkdirSync, writeFileSync } from 'node:fs';

const args = process.argv.slice(2);
const quick = args.includes('--quick');
const BASE = args.find((a) => a.startsWith('http')) ?? process.env.BASE_URL ?? 'http://localhost:8290';
const routesArg = args.find((a) => a.startsWith('--routes='));
const widthsArg = args.find((a) => a.startsWith('--widths='));
const OUT = new URL('./screens/core/', import.meta.url).pathname;
mkdirSync(OUT, { recursive: true });

const ROUTES = routesArg
  ? routesArg.slice('--routes='.length).split(',')
  : ['/', '/countries/canada', '/compare/canada/australia', '/compare/canada/united-states/france?tab=economy', '/rankings/gdp-per-capita', '/indicators/life-expectancy', '/regions/g7', '/regions/compare', '/peers', '/changes'];
const WIDTHS = widthsArg ? widthsArg.slice('--widths='.length).split(',').map(Number) : quick ? [390, 1440] : [320, 360, 375, 390, 430, 768, 1440, 1920];

const slug = (p) => (p === '/' ? 'home' : p.slice(1).replace(/[/?=&]+/g, '_'));
const report = [];
const browser = await chromium.launch();
for (const width of WIDTHS) {
  const mobile = width < 768;
  const ctx = await browser.newContext({ viewport: { width, height: mobile ? 844 : 900 }, deviceScaleFactor: 1, isMobile: mobile, hasTouch: mobile });
  const page = await ctx.newPage();
  const errors = [];
  const failed = [];
  page.on('pageerror', (e) => errors.push(`pageerror: ${String(e).slice(0, 200)}`));
  page.on('console', (m) => {
    if (m.type() === 'error') errors.push(m.text().slice(0, 200));
  });
  page.on('response', (r) => {
    if (r.status() >= 400 && r.url().includes('/api/')) failed.push(`${r.status()} ${r.url().slice(0, 140)}`);
  });
  for (const path of ROUTES) {
    let status = 0;
    try {
      const resp = await page.goto(BASE + path, { waitUntil: 'networkidle', timeout: 90_000 });
      status = resp?.status() ?? 0;
    } catch (e) {
      report.push({ path, width, status: 'ERR', error: String(e).slice(0, 200) });
      continue;
    }
    await page.evaluate(() => document.fonts.ready);
    await page.evaluate(async () => {
      const h = document.documentElement.scrollHeight;
      for (let y = 0; y < h; y += 700) {
        window.scrollTo(0, y);
        await new Promise((r) => setTimeout(r, 50));
      }
      window.scrollTo(0, 0);
    });
    await page.waitForLoadState('networkidle').catch(() => {});
    await page.waitForTimeout(500);
    const m = await page.evaluate(
      ({ mobile }) => {
        const de = document.documentElement;
        const overflow = de.scrollWidth - de.clientWidth;
        const wide = [...document.querySelectorAll('body *')]
          .filter((el) => el.getBoundingClientRect().right > de.clientWidth + 1 && el.getBoundingClientRect().width > 0)
          .slice(0, 5)
          .map((el) => `${el.tagName.toLowerCase()}.${String(el.className).split(' ').slice(0, 3).join('.')} right=${Math.round(el.getBoundingClientRect().right)}`);
        const vis = (el) => {
          const r = el.getBoundingClientRect();
          if (!r.width || !r.height) return false;
          const cs = getComputedStyle(el);
          return cs.visibility !== 'hidden' && cs.display !== 'none';
        };
        const small = mobile
          ? [...document.querySelectorAll('a,button,[role=button],input,select,summary,[role=radio],[role=tab]')]
              .filter(vis)
              .filter((el) => !el.closest('svg') && el.getBoundingClientRect().height < 44 && el.getBoundingClientRect().width < 44)
              .map((el) => `${el.tagName.toLowerCase()} "${(el.getAttribute('aria-label') || el.textContent || '').trim().slice(0, 30)}" ${Math.round(el.getBoundingClientRect().width)}x${Math.round(el.getBoundingClientRect().height)}`)
          : [];
        const text = document.body.innerText || '';
        const bad = [];
        for (const re of [/\bundefined\b/g, /\bNaN\b/g, /(?<![\w"':])null(?![\w"':])/g]) {
          let mm;
          let n = 0;
          while ((mm = re.exec(text)) && n < 3) {
            bad.push(`${mm[0]} @ "${text.slice(Math.max(0, mm.index - 40), mm.index + 30).replace(/\s+/g, ' ')}"`);
            n++;
          }
        }
        const footer = document.querySelector('footer')?.innerText ?? '';
        const credits = /Simon-Pierre Boucher/.test(footer) && /contact@spboucher\.ai/.test(footer) && /MacLustr/.test(footer);
        return { overflow, wide, small: small.slice(0, 8), nSmall: small.length, bad, credits, title: document.title, docH: de.scrollHeight };
      },
      { mobile },
    );
    const file = `${slug(path)}-${width}.png`;
    await page.screenshot({ path: OUT + file, fullPage: true }).catch(() => {});
    report.push({ path, width, status, ...m, errors: errors.splice(0), failed: failed.splice(0), file });
    writeFileSync(OUT + 'report.json', JSON.stringify(report, null, 2));
  }
  await ctx.close();
}
await browser.close();

let fails = 0;
for (const r of report) {
  const flags = [];
  if (r.status !== 200) flags.push(`HTTP ${r.status}`);
  if (r.overflow > 0) flags.push(`OVERFLOW +${r.overflow}px`);
  if (r.nSmall) flags.push(`${r.nSmall} small targets`);
  if (r.bad?.length) flags.push(`BAD TEXT ${r.bad.length}`);
  if (r.errors?.length) flags.push(`${r.errors.length} console errors`);
  if (r.failed?.length) flags.push(`${r.failed.length} failed API`);
  if (r.credits === false) flags.push('NO CREDITS');
  if (flags.length) fails++;
  console.log(`${String(r.width).padStart(4)} ${r.path.padEnd(52)} ${flags.join(' · ') || 'ok'} (h=${r.docH})`);
  if (r.wide?.length) console.log('       wide:', r.wide.join(' | '));
  if (r.small?.length) console.log('       small:', r.small.slice(0, 5).join(' | '));
  if (r.bad?.length) console.log('       bad:', r.bad.join(' | '));
  if (r.errors?.length) console.log('       errors:', r.errors.slice(0, 3).join(' | '));
  if (r.failed?.length) console.log('       failed:', r.failed.slice(0, 3).join(' | '));
}
console.log(`\n${report.length} renders, ${fails} with flags`);