/**
 * Guarded consultation-only Form A browser regression.
 * Run after a normal live build. Every Jotform request is
 * fulfilled or aborted locally; no Jotform request is transmitted.
 */
import assert from 'node:assert/strict';
import fs from 'node:fs/promises';
import http from 'node:http';
import net from 'node:net';
import path from 'node:path';
import { spawn } from 'node:child_process';
import { fileURLToPath, pathToFileURL } from 'node:url';
import { setTimeout as delay } from 'node:timers/promises';

const root = fileURLToPath(new URL('../', import.meta.url));
const moduleName = process.env.PLAYWRIGHT_MODULE
  ? pathToFileURL(path.resolve(process.env.PLAYWRIGHT_MODULE)).href
  : 'playwright';
const output = await fs.mkdtemp('/tmp/aia-form-a-consultation-');
const routes = [
  { route: '/client-consultation', locale: 'en', drawer: false, screenshot: 'client-consultation' },
  { route: '/es/client-consultation', locale: 'es', drawer: false, screenshot: 'es-client-consultation' },
  { route: '/schedule-consultation', locale: 'en', drawer: false, screenshot: 'schedule-consultation' },
  { route: '/aba-therapy', locale: 'en', drawer: true, screenshot: 'aba-therapy' },
  { route: '/autism-evaluations', locale: 'en', drawer: true, screenshot: 'autism-evaluations' },
  { route: '/learner-social-club', locale: 'en', drawer: true, screenshot: 'learner-social-club' },
  { route: '/es/aba-therapy', locale: 'es', drawer: true, screenshot: 'es-aba-therapy' },
  { route: '/es/autism-evaluations', locale: 'es', drawer: true, screenshot: 'es-autism-evaluations' },
  { route: '/es/learner-social-club', locale: 'es', drawer: true, screenshot: 'es-learner-social-club' },
];
const widths = [320, 390, 768, 1440];
const evidence = { routes, widths, checks: 0, blocked: [], jotformAttempts: [], screenshots: [], fallbackChecks: [], status: 'failed' };
const reserve = net.createServer();
await new Promise((resolve, reject) => { reserve.once('error', reject); reserve.listen(0, '127.0.0.1', resolve); });
const port = reserve.address().port;
await new Promise((resolve) => reserve.close(resolve));
const origin = 'http://127.0.0.1:' + port;
let browser;
let preview;

function expectedUrl(locale) {
  return 'https://form.jotform.com/262946078314059?formContext=consultation&language=' + locale;
}

try {
  const { chromium } = await import(moduleName);
  browser = await chromium.launch(process.env.CHROMIUM_EXECUTABLE
    ? { headless: true, executablePath: process.env.CHROMIUM_EXECUTABLE }
    : { headless: true });
  preview = spawn(process.execPath, ['node_modules/astro/bin/astro.mjs', 'preview', '--host', '127.0.0.1', '--port', String(port)], {
    cwd: root,
    env: { ...process.env, ASTRO_TELEMETRY_DISABLED: '1' },
    stdio: 'ignore',
  });
  const reachable = () => new Promise((resolve) => {
    const request = http.get(origin + '/', (response) => { response.resume(); resolve(response.statusCode === 200); });
    request.setTimeout(500, () => request.destroy());
    request.on('error', () => resolve(false));
  });
  for (let i = 0; i < 60 && !(await reachable()); i++) await delay(250);
  assert.equal(await reachable(), true, 'Loopback preview did not become reachable');

  for (const width of widths) {
    const context = await browser.newContext({
      viewport: { width, height: width < 500 ? 844 : 960 },
      serviceWorkers: 'block',
    });
    await context.addInitScript(() => localStorage.setItem('aia:service-inquiry:auto-suppressed-until', String(Date.now() + 86400000)));
    await context.routeWebSocket('**/*', (socket) => socket.close());
    await context.route('**/*', async (route) => {
      const request = route.request();
      const url = new URL(request.url());
      if (url.origin === origin && ['GET', 'HEAD'].includes(request.method())) return route.continue();
      const item = { origin: url.origin, path: url.pathname, search: url.search, method: request.method() };
      evidence.blocked.push(item);
      if (url.origin === 'https://form.jotform.com') {
        evidence.jotformAttempts.push(item);
        return route.fulfill({ contentType: 'text/html', body: '<!doctype html><title>Local consultation fixture</title><p>Local fixture</p>' });
      }
      return route.abort();
    });

    for (const expected of routes) {
      const page = await context.newPage();
      const attemptsBeforeNavigation = evidence.jotformAttempts.length;
      evidence.checks++;
      const response = await page.goto(origin + expected.route, { waitUntil: 'domcontentloaded', timeout: 15000 });
      assert.equal(response?.status(), 200, expected.route);
      assert.equal(await page.locator('main h1').count(), 1, expected.route);
      assert.equal(await page.locator('main form').count(), 0, expected.route);
      assert.ok(await page.evaluate(() => document.documentElement.scrollWidth <= innerWidth + 1), expected.route + ' has horizontal overflow at ' + width + 'px');

      const adapter = page.locator('[data-jotform-form-a]');
      const iframe = adapter.locator('iframe');
      const url = expectedUrl(expected.locale);
      assert.equal(await adapter.count(), 1, expected.route);
      assert.equal(await adapter.getAttribute('data-form-context'), 'consultation', expected.route);
      assert.equal(await adapter.getAttribute('data-form-mode'), 'live', expected.route);
      assert.equal(await iframe.getAttribute('title'), expected.locale === 'es' ? 'Formulario de consulta de AIA' : 'AIA consultation form', expected.route);
      assert.equal(await iframe.getAttribute('referrerpolicy'), 'no-referrer', expected.route);
      assert.equal(await iframe.getAttribute('sandbox'), 'allow-forms allow-scripts allow-same-origin', expected.route);
      assert.equal(await adapter.locator('[data-jotform-iframe-fallback]').getAttribute('hidden'), '', expected.route);

      const attemptsBefore = evidence.jotformAttempts.length;
      if (expected.drawer) {
        const opener = page.locator('[data-service-inquiry-trigger]');
        assert.equal(await opener.count(), 1, expected.route);
        assert.equal(await iframe.getAttribute('src'), null, expected.route + ' must defer the iframe source');
        assert.equal(await iframe.getAttribute('data-jotform-iframe-url'), url, expected.route);
        assert.equal(evidence.jotformAttempts.length, attemptsBefore, expected.route + ' must not request Jotform while closed');

        await opener.focus();
        await page.keyboard.press('Enter');
        const dialog = page.locator('[data-service-inquiry-drawer]');
        await assert.doesNotReject(dialog.waitFor({ state: 'visible', timeout: 3000 }));
        assert.equal(await iframe.getAttribute('src'), url, expected.route);
        await page.waitForTimeout(20);
        assert.equal(evidence.jotformAttempts.length, attemptsBefore + 1, expected.route + ' should request only after opening');
        assert.equal(await page.locator('.service-inquiry-form').count(), 0, expected.route + ' must not expose legacy fields');
        assert.equal(await page.locator('[data-service-inquiry-close]').getAttribute('aria-label'), expected.locale === 'es' ? 'Cerrar el formulario de consulta' : 'Close consultation form');

        await page.keyboard.press('Escape');
        await page.waitForFunction(() => !document.querySelector('[data-service-inquiry-drawer]')?.open);
        assert.equal(await page.evaluate(() => document.activeElement?.getAttribute('data-service-inquiry-trigger')), expected.route.split('/').at(-1), expected.route + ' restores focus');
        await opener.click();
        await page.waitForTimeout(20);
        assert.equal(await page.locator('[data-jotform-form-a] iframe').count(), 1, expected.route + ' must retain one iframe');
        assert.equal(evidence.jotformAttempts.length, attemptsBefore + 1, expected.route + ' must not duplicate the request on reopen');
      } else {
        assert.equal(await iframe.getAttribute('src'), url, expected.route);
        await page.waitForTimeout(20);
        assert.ok(evidence.jotformAttempts.length >= attemptsBeforeNavigation + 1, expected.route + ' should request the configured iframe');
      }

      const box = await iframe.boundingBox();
      const minimumHeight = expected.drawer ? width < 500 ? 1312 : 1152 : width < 500 ? 1088 : 960;
      assert.ok(box && box.width > 0 && box.height >= minimumHeight, expected.route + ' has an insufficient consultation frame');
      await page.screenshot({ path: path.join(output, expected.screenshot + '-' + width + '.png'), fullPage: true });
      evidence.screenshots.push(expected.screenshot + '-' + width + '.png');
      await page.close();
    }
    await context.close();
  }

  const noJavaScript = await browser.newContext({ viewport: { width: 390, height: 844 }, javaScriptEnabled: false, serviceWorkers: 'block' });
  await noJavaScript.route('**/*', async (route) => {
    const request = route.request();
    const url = new URL(request.url());
    if (url.origin === origin && ['GET', 'HEAD'].includes(request.method())) return route.continue();
    const item = { origin: url.origin, path: url.pathname, search: url.search, method: request.method(), noJavaScript: true };
    evidence.blocked.push(item);
    if (url.origin === 'https://form.jotform.com') evidence.jotformAttempts.push(item);
    return route.abort();
  });
  for (const expected of routes) {
    const page = await noJavaScript.newPage();
    evidence.checks++;
    await page.goto(origin + expected.route, { waitUntil: 'domcontentloaded', timeout: 15000 });
    if (expected.drawer) {
      const fallback = page.locator('.service-inquiry-drawer__noscript');
      assert.equal(await fallback.count(), 1, expected.route + ' no-JS fallback');
      assert.equal(await fallback.isVisible(), true, expected.route + ' no-JS fallback visibility');
      assert.equal(await fallback.locator('a').getAttribute('href'), expectedUrl(expected.locale), expected.route);
    } else {
      const fallback = page.locator('[data-jotform-form-a] .jotform-iframe__fallback--noscript');
      assert.equal(await fallback.count(), 1, expected.route + ' no-JS fallback');
      assert.equal(await fallback.isVisible(), true, expected.route + ' no-JS fallback visibility');
    }
    assert.ok(await page.evaluate(() => document.documentElement.scrollWidth <= innerWidth + 1), expected.route + ' no-JS horizontal overflow');
    await page.close();
  }
  await noJavaScript.close();

  const fallbackContext = await browser.newContext({ viewport: { width: 390, height: 844 }, serviceWorkers: 'block' });
  await fallbackContext.route('**/*', async (route) => {
    const request = route.request();
    const url = new URL(request.url());
    if (url.origin === origin && ['GET', 'HEAD'].includes(request.method())) return route.continue();
    const item = { origin: url.origin, path: url.pathname, search: url.search, method: request.method(), fallback: true };
    evidence.blocked.push(item);
    if (url.origin === 'https://form.jotform.com') {
      evidence.jotformAttempts.push(item);
      // Hold this guarded request rather than aborting it. Some browsers fire
      // iframe load for an aborted/error document, which intentionally clears
      // the fallback because load is only a transport signal.
      return new Promise(() => {});
    }
    return route.abort();
  });
  const fallbackPage = await fallbackContext.newPage();
  await fallbackPage.addInitScript(() => {
    const original = window.setTimeout.bind(window);
    window.setTimeout = (callback, timeout, ...args) => original(callback, timeout === 15000 ? 80 : timeout, ...args);
  });
  await fallbackPage.goto(origin + '/aba-therapy', { waitUntil: 'domcontentloaded', timeout: 15000 });
  await fallbackPage.locator('[data-service-inquiry-trigger]').click();
  const fallback = fallbackPage.locator('[data-jotform-iframe-fallback]');
  await fallbackPage.waitForFunction(() => document.querySelector('[data-jotform-iframe-fallback]')?.hidden === false);
  assert.equal(await fallback.isVisible(), true, 'blocked drawer request exposes the hosted fallback after timeout');
  evidence.fallbackChecks.push('drawer-timeout-fallback-visible');
  await fallbackContext.close();

  assert.ok(evidence.jotformAttempts.length >= routes.length * widths.length, 'Expected intercepted Jotform GET attempts');
  for (const attempt of evidence.jotformAttempts) {
    assert.equal(attempt.method, 'GET');
    assert.equal(attempt.path, '/262946078314059');
    assert.match(attempt.search, /^\?formContext=consultation&language=(?:en|es)$/);
  }
  assert.equal(evidence.blocked.filter((item) => !['GET', 'HEAD'].includes(item.method)).length, 0, 'A non-read request was attempted');
  evidence.status = 'passed';
} catch (error) {
  evidence.error = error instanceof Error ? error.message : String(error);
  throw error;
} finally {
  await fs.writeFile(path.join(output, 'evidence.json'), JSON.stringify(evidence, null, 2));
  if (preview && preview.exitCode === null) {
    preview.kill('SIGTERM');
    await Promise.race([new Promise((resolve) => preview.once('exit', resolve)), delay(3000)]);
    if (preview.exitCode === null) preview.kill('SIGKILL');
  }
  await browser?.close();
  console.log(JSON.stringify({ ...evidence, artifactDirectory: output }, null, 2));
}