/**
 * Site Builder screenshot capture — local-only. Logs in to the demo account,
 * walks through the SB landing + editor, applies the standard redaction step,
 * and writes PNGs to src/assets/screenshots/whp/.
 *
 * Run: WHP_BASE=... WHP_USER=... WHP_PASS=... npx tsx tools/screenshots/capture-site-builder.ts
 */
import { chromium, type Page } from 'playwright';
import { mkdir } from 'node:fs/promises';
import { resolve, dirname } from 'node:path';
import { fileURLToPath } from 'node:url';

const __dirname = dirname(fileURLToPath(import.meta.url));
const OUT_DIR = resolve(__dirname, '../../src/assets/screenshots/whp');

function need(name: string): string {
  const v = process.env[name];
  if (!v) throw new Error(`missing env: ${name}`);
  return v;
}

const BASE = need('WHP_BASE');
const USER = need('WHP_USER');
const PASS = need('WHP_PASS');

async function login(page: Page) {
  await page.goto(`${BASE}/login.php`);
  await page.fill('input[name="user"]', USER);
  await page.fill('input[name="password"]', PASS);
  await page.click('button[type="submit"]');
  await page.waitForLoadState('networkidle');
}

/**
 * Neutralise server / domain / user identifiers before snapshot.
 * Same idea as run.ts redactSensitive, extended for SB's domain pill.
 */
async function redact(page: Page) {
  await page.addStyleTag({
    content: `
      .navbar-text, .brand-full { visibility: hidden !important; }
    `,
  });
  await page.evaluate(() => {
    const swaps: [RegExp, string][] = [
      [/whp\d+(-[a-z0-9]+)?\.cloud-hosting\.io/gi, '<your-server>.cloud-hosting.io'],
      [/mail\d+\.cloud-hosting\.io/gi, '<your-mail-server>.cloud-hosting.io'],
      [/whp-demo\.anhh\.co/gi, 'your-site.example.com'],
      [/whp\d+(-[a-z0-9]+)?\b/gi, '<your-server>'],
      [/WHP\d+(-[A-Z0-9]+)?\b/g, '<YOUR-SERVER>'],
      [/\b\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}\b/g, '<your-server-IP>'],
      [/\/docker\/users\/[a-z0-9-]+/g, '/docker/users/<your-username>'],
      [/demo-user/g, 'your-username'],
    ];
    const walker = document.createTreeWalker(document.body, NodeFilter.SHOW_TEXT);
    const nodes: Text[] = [];
    let n: Node | null = walker.nextNode();
    while (n) { nodes.push(n as Text); n = walker.nextNode(); }
    for (const node of nodes) {
      let v = node.nodeValue ?? '';
      for (const [re, replacement] of swaps) v = v.replace(re, replacement);
      if (v !== node.nodeValue) node.nodeValue = v;
    }
  });
}

async function shot(page: Page, id: string) {
  await redact(page);
  const path = resolve(OUT_DIR, `${id}.png`);
  await page.screenshot({ path, fullPage: false });
  console.log(`captured ${id} -> ${path}`);
}

async function findSiteId(page: Page): Promise<string | null> {
  // Open SB landing, click first Build Site, scrape ?site_id=NN from URL
  await page.goto(`${BASE}/index.php?page=site-builder`);
  await page.waitForLoadState('networkidle');
  const build = page.locator('a, button').filter({ hasText: 'Build Site' }).first();
  if (await build.count() === 0) return null;
  await build.click();
  await page.waitForLoadState('networkidle');
  const m = page.url().match(/site_id=(\d+)/);
  return m ? m[1] : null;
}

async function main() {
  await mkdir(OUT_DIR, { recursive: true });
  const browser = await chromium.launch({ headless: true });
  const ctx = await browser.newContext({
    ignoreHTTPSErrors: true,
    viewport: { width: 1440, height: 900 },
    deviceScaleFactor: 2,
  });
  const page = await ctx.newPage();
  try {
    await login(page);

    // 1) SB landing
    await page.goto(`${BASE}/index.php?page=site-builder`);
    await page.waitForLoadState('networkidle');
    await shot(page, 'whp-site-builder-landing');

    // 2) Editor — open from the landing
    const siteId = await findSiteId(page);
    if (!siteId) {
      console.error('no site_id found; ensure the demo account has at least one site');
      return;
    }
    await page.goto(`${BASE}/site-builder/?site_id=${siteId}`);
    await page.waitForLoadState('networkidle');
    await page.waitForTimeout(2500);
    await shot(page, 'whp-site-builder-editor');

    // 3) Pages tab
    await page.locator('button:has-text("PAGES"), button:has-text("Pages")').first().click().catch(() => {});
    await page.waitForTimeout(1000);
    await shot(page, 'whp-site-builder-pages');

    // 4) Blocks: Sections category
    await page.locator('button:has-text("BLOCKS"), button:has-text("Blocks")').first().click().catch(() => {});
    await page.waitForTimeout(500);
    await page.locator('text=SECTIONS').first().click().catch(() => {});
    await page.waitForTimeout(800);
    await shot(page, 'whp-site-builder-blocks');

    // 5) Templates modal
    await page.locator('button:has-text("Templates")').first().click().catch(() => {});
    await page.waitForTimeout(1500);
    await shot(page, 'whp-site-builder-templates');
    await page.keyboard.press('Escape').catch(() => {});
    await page.waitForTimeout(500);

    // 6) Custom head code modal
    await page.locator('button:has-text("Code")').first().click().catch(() => {});
    await page.waitForTimeout(1500);
    await shot(page, 'whp-site-builder-code');
    await page.keyboard.press('Escape').catch(() => {});
  } finally {
    await browser.close();
  }
}

main().catch(e => { console.error(e); process.exit(1); });