// UI verification driven through the Chrome DevTools Protocol.
// Run with Windows Node (same machine as Chrome), e.g.:
//   node verify-ui.cjs "C:\\Users\\...\\input.xlsx" "\\\\wsl.localhost\\Ubuntu\\...\\shots"
// Chrome must be started with --remote-debugging-port=9444 (see DOC/05_검증).
const fs = require('fs');
const path = require('path');

const APP_URL = process.env.APP_URL || 'http://127.0.0.1:5173/';
const CDP = process.env.CDP || 'http://127.0.0.1:9444';
const INPUT_FILE = process.argv[2];
const OUT_DIR = process.argv[3];
if (!INPUT_FILE || !OUT_DIR) throw new Error('INPUT_FILE and OUT_DIR are required');

const sleep = (ms) => new Promise((r) => setTimeout(r, ms));

async function main() {
  const targets = await (await fetch(`${CDP}/json`)).json();
  const page = targets.find((t) => t.type === 'page');
  if (!page) throw new Error('no page target');
  const ws = new WebSocket(page.webSocketDebuggerUrl);
  await new Promise((res, rej) => {
    ws.onopen = res;
    ws.onerror = rej;
  });

  let seq = 0;
  const waiting = new Map();
  // Console and exception events, collected from the first navigation onward (V10 ③).
  const consoleEvents = [];
  ws.onmessage = (ev) => {
    const m = JSON.parse(ev.data);
    if (m.id && waiting.has(m.id)) {
      waiting.get(m.id)(m);
      waiting.delete(m.id);
    } else if (m.method === 'Runtime.consoleAPICalled' && ['error', 'warning'].includes(m.params.type)) {
      const text = m.params.args.map((a) => a.value ?? a.description ?? '').join(' ');
      consoleEvents.push(`console.${m.params.type}: ${text}`);
    } else if (m.method === 'Runtime.exceptionThrown') {
      const d = m.params.exceptionDetails;
      consoleEvents.push(`exception: ${d.exception?.description || d.text}`);
    } else if (m.method === 'Log.entryAdded' && ['error', 'warning'].includes(m.params.entry.level)) {
      consoleEvents.push(`log.${m.params.entry.level}: ${m.params.entry.text} ${m.params.entry.url || ''}`.trim());
    }
  };
  const send = (method, params = {}) =>
    new Promise((res) => {
      const id = ++seq;
      waiting.set(id, res);
      ws.send(JSON.stringify({ id, method, params }));
    });
  const evalJs = async (expression) => {
    const r = await send('Runtime.evaluate', { expression, awaitPromise: true, returnByValue: true });
    if (r.result.exceptionDetails) throw new Error(JSON.stringify(r.result.exceptionDetails).slice(0, 400));
    return r.result.result.value;
  };
  const shot = async (name) => {
    const r = await send('Page.captureScreenshot', { format: 'png' });
    fs.writeFileSync(path.join(OUT_DIR, name), Buffer.from(r.result.data, 'base64'));
    console.log(`SHOT ${name}`);
  };

  await send('Page.enable');
  await send('Runtime.enable');
  await send('Log.enable');
  await send('DOM.enable');
  await send('Emulation.setDeviceMetricsOverride', { width: 1600, height: 1000, deviceScaleFactor: 1, mobile: false });
  await send('Page.navigate', { url: APP_URL });
  await sleep(4000);

  // V11 — dialog with the user's three-sheet workbook.
  await evalJs(`document.getElementById('open-import').click()`);
  await sleep(500);
  await evalJs(`(() => { const i = document.getElementById('project-name'); i.value = '운곡교 검증';
    i.dispatchEvent(new Event('input')); return true; })()`);
  const doc = await send('DOM.getDocument', { depth: -1 });
  const q = await send('DOM.querySelector', { nodeId: doc.result.root.nodeId, selector: '#file' });
  await send('DOM.setFileInputFiles', { nodeId: q.result.nodeId, files: [INPUT_FILE] });
  await sleep(3000);

  console.log('SHEETS_TEXT_BEGIN');
  console.log(await evalJs(`document.getElementById('sheets').innerText`));
  console.log('SHEETS_TEXT_END');
  console.log('SELECTED', await evalJs(`document.getElementById('dlg-selected').textContent`));
  console.log('APPLY', await evalJs(`(() => { const b = document.getElementById('dlg-apply');
    return b.textContent + ' | disabled=' + b.disabled; })()`));
  await shot('v11_dialog_user_file.png');

  await evalJs(`document.getElementById('dlg-apply').click()`);
  await sleep(2000);
  console.log('STATUS', await evalJs(`document.getElementById('status').textContent`));
  console.log('PIERS', await evalJs(`[...document.querySelectorAll('#pier-items li')].map(li => li.textContent.trim()).join(' | ')`));
  console.log('RESULT_AXIS', await evalJs(`document.getElementById('res-axis').innerText.replace(/\\n+/g, ' / ')`));
  console.log('RESULT_FOUND', await evalJs(`document.getElementById('res-found').innerText.replace(/\\n+/g, ' / ')`));
  await shot('v11_main_user_file.png');

  // V10 ② — the four view presets.
  for (const label of ['정면', '측면', '평면', '아이소']) {
    await evalJs(`[...document.querySelectorAll('#views button')].find((b) => b.textContent === '${label}').click()`);
    await sleep(1500);
    await shot(`v10_view_${label}.png`);
    console.log('PRESSED', label, await evalJs(`[...document.querySelectorAll('#views button')].filter((b) => b.getAttribute('aria-pressed') === 'true').map((b) => b.textContent).join(',')`));
  }

  // V10 ③ — every console error/warning and uncaught exception seen during the run above.
  console.log(`CONSOLE_EVENTS ${consoleEvents.length}`);
  for (const e of consoleEvents) console.log(`  ${e}`);
  ws.close();
}

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