import { chromium } from 'playwright';
import assert from 'node:assert/strict';
import { execFileSync, spawn } from 'node:child_process';
import { mkdir, writeFile } from 'node:fs/promises';
import { randomBytes } from 'node:crypto';
import net from 'node:net';

const php = process.env.PHP_BINARY || 'php';
const fixture = JSON.parse(execFileSync(php, ['tests/pilot-fixture.php'], { encoding: 'utf8', windowsHide: true }));
const env = { ...process.env, APP_ENV: 'prod', APP_DEBUG: '0', APP_SECRET: randomBytes(32).toString('hex'), DATABASE_URL: fixture.databaseUrl, MEDIA_DIRECTORY: fixture.mediaDirectory };
execFileSync(php, ['bin/console', 'cache:clear', '--env=prod', '--no-debug'], { stdio: 'ignore', windowsHide: true, env });
const probe = net.createServer(); await new Promise(resolve => probe.listen(0, '127.0.0.1', resolve));
const port = probe.address().port; await new Promise(resolve => probe.close(resolve));
const origin = `http://127.0.0.1:${port}`;
const server = spawn(php, ['-d', 'memory_limit=256M', '-S', `127.0.0.1:${port}`, '-t', 'public', 'bin/dev-router.php'], { windowsHide: true, stdio: 'ignore', env: { ...env, SITE_ORIGIN: origin } });
const report = 'reports/buttons'; await mkdir(report, { recursive: true });
let browser, page;
const checks = [], errors = [];
const buttonStyle = node => {
  const style = getComputedStyle(node);
  return Object.fromEntries(['backgroundColor', 'color', 'borderRadius', 'borderColor', 'borderWidth', 'borderStyle', 'paddingTop', 'paddingRight', 'fontFamily', 'fontSize', 'fontWeight', 'letterSpacing', 'textTransform', 'lineHeight', 'textAlign'].map(key => [key, style[key]]));
};

try {
  for (let attempt = 0; attempt < 60; attempt++) {
    try { if ((await fetch(origin)).ok) break; } catch {}
    if (attempt === 59) throw new Error('Pilot test server did not start');
    await new Promise(resolve => setTimeout(resolve, 200));
  }
  browser = await chromium.launch();
  const context = await browser.newContext({ viewport: { width: 1600, height: 1050 } });
  page = await context.newPage(); page.setDefaultTimeout(15000); page.on('pageerror', error => errors.push(error.message));
  await page.goto(origin + '/admin/login');
  await page.getByLabel('Benutzername').fill(fixture.username); await page.getByLabel('Passwort', { exact: true }).fill(fixture.password);
  await page.getByRole('button', { name: 'Anmelden', exact: true }).click(); await page.waitForURL(origin + '/admin');
  const api = `${origin}/admin/api/pages/${fixture.homeId}`;
  const data = await (await context.request.get(api)).json();
  data.document.blocks.unshift({ id: 'qa-buttons-section', type: 'section', children: [
    { id: 'qa-button-default', type: 'button', props: { text: 'Kontakt aufnehmen', href: '#kontakt' } },
    { id: 'qa-button', type: 'button', props: { text: 'Mehr erfahren', href: '/kontakt' }, style: { desktop: { margin: { left: '12px' }, fontSize: '17px' } } }
  ] });
  assert.equal((await context.request.post(api + '/draft', { headers: { 'X-CSRF-Token': data.csrfToken }, data: { document: data.document, expectedVersion: data.version } })).status(), 200);
  await page.goto(origin + '/admin/theme');
  await page.locator('#buttons-fontSize').fill('18');
  await page.getByRole('button', { name: 'Standardbutton Rahmen · Pille', exact: true }).click();
  assert.equal(await page.locator('#buttons-shape').inputValue(), 'pill');
  assert.equal(await page.locator('#buttons-appearance').inputValue(), 'outline');
  assert.equal(await page.locator('#button-defaults .button-state .cms-button').first().evaluate(el => getComputedStyle(el).borderRadius), '999px');
  await page.locator('#button-defaults').screenshot({ path: `${report}/theme.png` });
  await page.getByRole('button', { name: 'Design speichern', exact: true }).click();
  assert.equal(await page.locator('#buttons-shape').inputValue(), 'pill');
  assert.equal(await page.locator('#buttons-fontSize').inputValue(), '18');
  checks.push('global typography, visual presets, normal/hover preview and actual form save including empty palette rows');

  await page.goto(`${origin}/admin/pages/${fixture.homeId}`);
  await page.locator('#structure [data-block-id="qa-button"]').click();
  await page.getByRole('button', { name: 'Button-Vorlage Abgerundet', exact: true }).click();
  const waitVariant = async (id, radius, background) => page.waitForFunction(({id,radius,background}) => {
    const doc = document.querySelector('#preview')?.contentDocument, el = doc?.getElementById(id);
    if (!el) return false;
    const s = doc.defaultView.getComputedStyle(el);
    return s.borderRadius === radius && (background === undefined || (s.backgroundColor === 'rgba(0, 0, 0, 0)') === background);
  }, { id, radius, background });
  await waitVariant('qa-button', '8px', false);
  await page.locator('#undo').click(); await waitVariant('qa-button', '999px', true);
  await page.locator('#redo').click(); await waitVariant('qa-button', '8px', false);
  await page.locator('[data-viewport="tablet"]').click();
  await page.getByRole('button', { name: 'Button-Vorlage Rahmen · eckig', exact: true }).click();
  await waitVariant('qa-button', '0px', true);
  await page.locator('[data-viewport="mobile"]').click();
  await page.getByRole('button', { name: 'Button-Vorlage Pille', exact: true }).click();
  await waitVariant('qa-button', '999px', false);
  await page.locator('#button-reset').click(); await waitVariant('qa-button', '0px', true);
  await page.locator('#undo').click(); await waitVariant('qa-button', '999px', false);
  await page.locator('[data-viewport="desktop"]').click(); await waitVariant('qa-button', '8px', false);
  await page.locator('.button-designer').screenshot({ path: `${report}/editor-controls.png` });
  await page.locator('#save').click(); await page.locator('#save-status').filter({ hasText: 'Entwurf gespeichert' }).waitFor();
  await page.reload(); await page.locator('#structure [data-block-id="qa-button"]').click(); await waitVariant('qa-button', '8px', false);
  const stored = (await (await context.request.get(api)).json()).document;
  assert.equal(stored.schemaVersion, 21);
  assert.deepEqual(stored.blocks[0].children[1].props, { text: 'Mehr erfahren', href: '/kontakt' });
  assert.equal(stored.blocks[0].children[1].style.desktop.margin.left, '12px');
  assert.equal(stored.blocks[0].children[1].style.desktop.fontSize, '17px');
  checks.push('preset selection, device inheritance/reset, undo/redo, save/reload, preserved content and unrelated styling');
  await page.locator('#publish').click(); await page.locator('#confirm-publish').click();
  await page.locator('#save-status').filter({ hasText: 'Veröffentlicht' }).waitFor();
  const plain = await browser.newContext({ javaScriptEnabled: false }); const publicPage = await plain.newPage();
  for (const [width, radius, transparent] of [[1600, '8px', false], [900, '0px', true], [390, '999px', false]]) {
    await publicPage.setViewportSize({ width, height: 900 }); await publicPage.goto(origin);
    const necessaryCookies = publicPage.getByRole('button', { name: 'Nur notwendige', exact: true });
    if (await necessaryCookies.count()) await necessaryCookies.click();
    const values = await publicPage.locator('#qa-button').evaluate(el => { const s=getComputedStyle(el);return { radius:s.borderRadius, bg:s.backgroundColor, font:s.fontSize }; });
    assert.equal(values.radius, radius); assert.equal(values.bg === 'rgba(0, 0, 0, 0)', transparent); assert.equal(values.font, '17px');
    assert.equal(await publicPage.locator('#qa-button-default').evaluate(el => getComputedStyle(el).fontSize), '18px');
    const submit = publicPage.locator('.block-form button[type=submit]').first();
    const standard = publicPage.locator('#qa-button-default');
    assert.deepEqual(await submit.evaluate(buttonStyle), await standard.evaluate(buttonStyle), 'Form submit uses global shape, appearance, size, typography and colors');
    assert.ok(await submit.evaluate(node => node.getBoundingClientRect().width < node.form.getBoundingClientRect().width), 'Submit keeps natural button width');
    await submit.hover(); await publicPage.waitForTimeout(350);
    const hoverStyle = await submit.evaluate(buttonStyle);
    await standard.hover(); await publicPage.waitForTimeout(350);
    assert.deepEqual(hoverStyle, await standard.evaluate(buttonStyle), 'Submit inherits the global hover colors');
    await submit.focus();
    assert.equal(await submit.evaluate(node => getComputedStyle(node).outlineStyle), 'solid', 'Submit has a keyboard focus indicator');
    await submit.screenshot({ path: `${report}/submit-${width}.png` });
    await publicPage.locator('#qa-buttons-section').screenshot({ path: `${report}/public-${width}.png` });
  }
  await page.goto(origin + '/admin/theme');
  await page.locator('#buttons-shape').selectOption('rounded');
  await page.locator('#buttons-appearance').selectOption('solid');
  await page.locator('#buttons-size').selectOption('large');
  await page.locator('#buttons-fontSize').fill('20');
  for (const [key, hex] of [['backgroundColor', '#124b36'], ['color', '#ffffff'], ['hoverBackgroundColor', '#092c20'], ['hoverColor', '#fff4cc']]) {
    await page.locator(`#buttons-${key}`).click();
    await page.locator(`#buttons-${key}-hex`).fill(hex);
    await page.locator(`#buttons-${key}-hex`).press('Enter');
    await page.keyboard.press('Escape');
  }
  await page.getByRole('button', { name: 'Design speichern', exact: true }).click();
  await publicPage.goto(origin);
  const updatedSubmit = publicPage.locator('.block-form button[type=submit]').first();
  const updatedDefault = publicPage.locator('#qa-button-default');
  assert.deepEqual(await updatedSubmit.evaluate(buttonStyle), await updatedDefault.evaluate(buttonStyle), 'A later change to solid global defaults updates existing forms');
  assert.equal(await updatedSubmit.evaluate(el => getComputedStyle(el).backgroundColor), 'rgb(18, 75, 54)');
  await updatedSubmit.hover(); await publicPage.waitForTimeout(350);
  const updatedHover = await updatedSubmit.evaluate(buttonStyle);
  await updatedDefault.hover(); await publicPage.waitForTimeout(350);
  assert.deepEqual(updatedHover, await updatedDefault.evaluate(buttonStyle), 'Custom global hover colors update existing forms');
  await publicPage.setViewportSize({ width: 390, height: 1600 });
  await updatedSubmit.scrollIntoViewIfNeeded();
  await publicPage.locator('.block-form').first().screenshot({ path: `${report}/form-standard-button.png` });
  await plain.close(); checks.push('published global defaults, form submit including hover/focus/natural width, solid and outline theme changes, and local responsive variants without JavaScript');
  assert.deepEqual(errors, []);
  await writeFile(`${report}/result.json`, JSON.stringify({ checks, passed: true }, null, 2));
  console.log('Button checks passed:', checks.length, 'groups.');
} catch (error) {
  if (page) await page.screenshot({ path: `${report}/failure.png`, fullPage: true }).catch(() => {});
  throw error;
} finally { await browser?.close(); server.kill(); }