#!/usr/bin/env node
/** Rendered acceptance for style transitions and effect-state ownership. */
import fs from 'node:fs';
import puppeteer from 'puppeteer';

const browser = await puppeteer.launch({ headless: true, args: ['--no-sandbox', ...(process.platform === 'darwin' ? ['--use-angle=metal', '--enable-gpu'] : ['--use-gl=angle', '--use-angle=swiftshader'])] });
const page = await browser.newPage();
const errors = [];
page.on('pageerror', (error) => errors.push(error.message));
let failures = 0;
function check(name, passed) {
  console.log(`[${passed ? 'PASS' : 'FAIL'}] ${name}`);
  if (!passed) failures++;
}
try {
  await page.setViewport({ width: 1440, height: 900 });
  const url = new URL(process.env.QA_BASE_URL || 'http://127.0.0.1:4173');
  url.searchParams.set('welcome', '0');
  await page.goto(url.href, { waitUntil: 'domcontentloaded' });
  await page.waitForFunction(() => window.__godsEyeView?.styleManager?._visualEffects && document.getElementById('loading-screen')?.classList.contains('hidden'), { timeout: 60_000 });
  await page.evaluate(() => {
    const viewer = window.__godsEyeView.viewer;
    viewer.camera.cancelFlight?.();
    viewer.scene.tweens?.removeAll?.();
    viewer.camera.setView({
      destination: viewer.scene.globe.ellipsoid.cartographicToCartesian({ longitude: -97.7431 * Math.PI / 180, latitude: 30.2568 * Math.PI / 180, height: 1200 }),
      orientation: { heading: 0, pitch: -0.85, roll: 0 },
    });
    viewer.scene.requestRender();
  });
  await page.evaluate(() => new Promise((resolve) => requestAnimationFrame(() => requestAnimationFrame(resolve))));
  const settled = await page.waitForFunction(() => {
    const primitives = window.__godsEyeView.viewer.scene.primitives;
    for (let i = 0; i < primitives.length; i++) {
      const primitive = primitives.get(i);
      if (typeof primitive.tilesLoaded === 'boolean' && !primitive.tilesLoaded) return false;
    }
    return true;
  }, { timeout: 60_000 }).then(() => true, () => false);
  check('visible tile content settles before visual captures', settled);
  fs.mkdirSync('qa-shots/visual-effects', { recursive: true });
  for (const style of ['normal', 'retro', 'surveillance', 'thermal', 'anime', 'noir', 'snow', 'normal']) {
    await page.evaluate((name) => window.__godsEyeView.styleManager.setStyle(name), style);
    await page.waitForFunction(() => window.__godsEyeView.styleManager.transitions.size === 0, { timeout: 10_000 });
    const state = await page.evaluate(() => {
      const manager = window.__godsEyeView.styleManager;
      const effects = manager._visualEffects;
      const visible = Object.entries(effects.stages).filter(([, stage]) => stage.enabled).map(([name]) => name);
      const animated = Object.values(effects.stages).some((stage) => stage.enabled && stage.uniforms.time !== undefined && stage.uniforms.intensity > 0.001);
      return { active: manager.activeStyle, visible, clock: effects.frameId !== null, animated };
    });
    check(`${style}: only the selected style remains visible`, state.active === style && JSON.stringify(state.visible) === JSON.stringify(style === 'normal' ? [] : [style]));
    check(`${style}: the animation clock follows visible animated stages`, state.clock === state.animated);
    if (['normal', 'surveillance', 'thermal'].includes(style)) {
      await page.screenshot({ path: `qa-shots/visual-effects/${style}.png` });
      if (style === 'surveillance') await page.evaluate(() => window.__godsEyeView.viewer.camera.lookRight(0.2));
    }
  }
  await page.evaluate(() => {
    const manager = window.__godsEyeView.styleManager;
    manager.setStyle('noir'); manager.setStyle('retro'); manager.setStyle('normal');
  });
  await page.waitForFunction(() => window.__godsEyeView.styleManager.transitions.size === 0, { timeout: 10_000 });
  check('rapid switches settle to Normal without an old style or clock', await page.evaluate(() => {
    const effects = window.__godsEyeView.styleManager._visualEffects;
    return effects.frameId === null && Object.values(effects.stages).every((stage) => !stage.enabled);
  }));
  check('bloom actions, effect state and saved snapshot agree', await page.evaluate(() => {
    const manager = window.__godsEyeView.styleManager;
    const result = manager.setBloom({ enabled: true, intensityPct: 98 });
    const snapshot = manager.getVisualState();
    return result.ok && result.bloom.intensityPct === 98 && snapshot.bloom.intensity === 98 && manager._visualEffects.bloomIntensity === 98 && manager._bloomStage.enabled;
  }));
  check('sharpen actions, effect state and saved snapshot agree', await page.evaluate(() => {
    const manager = window.__godsEyeView.styleManager;
    const result = manager.setSharpen({ enabled: true, intensityPct: 61 });
    return result.ok && result.sharpen.intensityPct === 61 && manager.getVisualState().sharpen.intensity === 61 && manager._visualEffects.sharpenIntensity === 0.61 && Math.abs(manager._sharpenStage.uniforms.amount - 1.32) < 1e-9;
  }));
  await page.setViewport({ width: 620, height: 900 });
  await page.evaluate(() => window.__godsEyeView.styleManager.setPanelCollapsed('pp-toggles', false, { persist: false, syncShare: false }));
  await page.screenshot({ path: 'qa-shots/visual-effects/narrow.png' });
  const teardown = await page.evaluate(async () => {
    const manager = window.__godsEyeView.styleManager;
    const effects = manager._visualEffects;
    manager.setStyle('retro');
    const owned = [...Object.values(effects.stages), effects.sharpenStage];
    const collection = manager.viewer.scene.postProcessStages;
    const previousBloom = effects.previousBloom;
    const pending = manager.dispose();
    const stoppedBeforeAwait = effects.stopped && effects.frameId === null && effects.transitions.size === 0;
    await pending;
    return {
      stoppedBeforeAwait,
      removed: owned.every((stage) => !collection.contains(stage)),
      restored: effects.bloomStage.enabled === previousBloom.enabled && Object.entries(previousBloom.uniforms).every(([name, value]) => effects.bloomStage.uniforms[name] === value),
    };
  });
  check('UI teardown stops effect animation before its first await', teardown.stoppedBeforeAwait);
  check('UI teardown removes owned stages and restores borrowed bloom', teardown.removed && teardown.restored);
  check('effects do not introduce uncaught browser errors', errors.length === 0);
  if (errors.length) console.log(JSON.stringify(errors));
} finally {
  await browser.close();
}
console.log(`RESULT: ${failures} failures`);
process.exitCode = failures ? 1 : 0;