/* Browser boot test: loads the game, starts a match, screenshots it. */
'use strict';
const { chromium } = require('/tmp/node_modules/playwright-core');

(async () => {
  const browser = await chromium.launch({
    executablePath: '/root/.cache/ms-playwright/chromium_headless_shell-1148/chrome-linux/headless_shell',
    args: ['--no-sandbox', '--disable-gpu'],
  });
  const page = await browser.newPage({ viewport: { width: 1440, height: 860 } });

  const errors = [];
  page.on('console', m => { if (m.type() === 'error') errors.push(m.text()); });
  page.on('pageerror', e => errors.push('PAGEERROR: ' + e.message));

  await page.goto('http://127.0.0.1:8933/', { waitUntil: 'load' });
  await page.waitForTimeout(1200);
  await page.screenshot({ path: '/root/dinorts/shots/01-menu.png' });
  console.log('menu loaded');

  // start normal difficulty
  await page.click('[data-diff="normal"]');
  await page.waitForTimeout(2500);
  await page.screenshot({ path: '/root/dinorts/shots/02-start.png' });
  const st1 = await page.evaluate(() => {
    const s = RTS.sim.state();
    return { day: s.day, dinos: s.dinos.length, units: s.units.length, blds: s.buildings.length, res: { ...s.res } };
  });
  console.log('game state:', JSON.stringify(st1));

  // select HQ by clicking near center of screen
  await page.mouse.click(720, 430);
  await page.waitForTimeout(400);
  await page.screenshot({ path: '/root/dinorts/shots/03-selected.png' });

  // place a house via the palette (target the button by its label, not position)
  await page.evaluate(() => {
    const btns = [...document.querySelectorAll('.palbtn')];
    const house = btns.find(b => b.textContent.includes('House'));
    house.click();
  });
  await page.waitForTimeout(200);
  // click a spot anchored to the HQ (world is randomly generated each run)
  for (const [dx, dy] of [[4, 1], [-4, 2], [3, -4], [-3, -4], [5, 4]]) {
    const pt = await page.evaluate(([dx2, dy2]) => {
      const hq = RTS.sim.hq();
      return RTS.render.worldToScreen(hq.x + dx2, hq.y + dy2);
    }, [dx, dy]);
    await page.mouse.click(pt.x, pt.y);
    await page.waitForTimeout(250);
    const done = await page.evaluate(() => RTS.sim.state().buildings.some(b => b.defId === 'house'));
    if (done) break;
  }
  const st2 = await page.evaluate(() => {
    const s = RTS.sim.state();
    return { blds: s.buildings.map(b => b.defId), gold: Math.floor(s.res.gold) };
  });
  console.log('after house placement:', JSON.stringify(st2));
  await page.keyboard.press('Escape');
  await page.keyboard.press('Escape');

  // fast-forward 30s of game time at 3x
  await page.keyboard.press('3'); // no-op key (speed buttons are UI) — use UI button instead
  await page.click('#topbtns .tbtn:nth-child(3)'); // 2×
  await page.waitForTimeout(9000);
  const st3 = await page.evaluate(() => {
    const s = RTS.sim.state();
    return { time: Math.floor(s.time), kills: s.stats.kills, dinos: s.dinos.length };
  });
  console.log('after fast-forward:', JSON.stringify(st3));
  await page.screenshot({ path: '/root/dinorts/shots/04-later.png' });

  // pause overlay (Save/Load buttons visible)
  await page.keyboard.press('Space');
  await page.waitForTimeout(300);
  const pauseBtns = await page.evaluate(() => ({
    save: !!document.getElementById('savebtn'),
    loadDisabled: document.getElementById('loadbtn') && document.getElementById('loadbtn').disabled,
  }));
  console.log('pause menu:', JSON.stringify(pauseBtns));
  await page.screenshot({ path: '/root/dinorts/shots/05-paused.png' });
  await page.keyboard.press('Space');

  // ---- save → reload → continue from the main menu ----
  const saved = await page.evaluate(() => RTS.storage.save(true) && RTS.storage.has());
  console.log('saved to localStorage:', saved);
  if (!saved) throw new Error('save failed');
  await page.reload();
  await page.waitForTimeout(700);
  const contVisible = await page.evaluate(() => {
    const b = document.getElementById('continueBtn');
    return b && b.style.display !== 'none';
  });
  if (!contVisible) throw new Error('Continue button not shown despite existing save');
  await page.click('#continueBtn');
  await page.waitForTimeout(600);
  const st4 = await page.evaluate(() => {
    const s = RTS.sim.state();
    return { day: s.day, time: Math.floor(s.time), blds: s.buildings.length };
  });
  if (!(st4.time > 5)) throw new Error('loaded colony did not restore progress: ' + JSON.stringify(st4));
  console.log('after continue:', JSON.stringify(st4));

  console.log('console errors:', errors.length ? errors : 'none');
  await browser.close();
  if (errors.length) process.exit(2);
  console.log('BROWSER BOOT TEST PASSED ✔');
})().catch(e => { console.error('TEST CRASH:', e); process.exit(1); });