Release God's Eye View as open source

scripts/qa-traffic-jamviz-ab.mjs

@@ -0,0 +1,254 @@
+#!/usr/bin/env node
+/**
+ * qa-traffic-jamviz-ab.mjs — A/B screenshot capture for the jam-viz
+ * congestion prototypes.
+ *
+ * For each view, renders the SAME camera framing under each jamViz mode
+ * (none = shipped main behavior / density / heatline / both), forcing a
+ * fresh camera-driven re-render between modes via an away-and-back teleport
+ * (setParams applies on the next load, same semantics as uncoveredRoads).
+ * Shots + per-shot layer stats land in --out (default qa-shots/jamviz).
+ *
+ * Views: Austin I-35 downtown corridor (owner's requested A/B target) at
+ * city scale + low detail, plus Mumbai Western Express Hwy — captured
+ * because Austin is off-peak at 22:00 CT while Mumbai is in live morning
+ * rush, guaranteeing jam-bucket coverage in the drama shots.
+ *
+ * Run:  node scripts/qa-traffic-jamviz-ab.mjs --url http://localhost:4412
+ * Exits non-zero on harness failure (missing live mode, zero dots, etc.).
+ */
+
+import puppeteer from 'puppeteer';
+import fs from 'node:fs';
+import path from 'node:path';
+import { fileURLToPath } from 'node:url';
+
+const __dirname = path.dirname(fileURLToPath(import.meta.url));
+const REPO_ROOT = path.resolve(__dirname, '..');
+
+const argv = process.argv.slice(2);
+const getOpt = (name, dflt) => {
+  const i = argv.indexOf(name);
+  return i >= 0 && argv[i + 1] ? argv[i + 1] : dflt;
+};
+const APP_URL = getOpt('--url', 'http://localhost:4412');
+const OUT_DIR = path.resolve(REPO_ROOT, getOpt('--out', 'qa-shots/jamviz'));
+
+const VIEWS = [
+  {
+    id: 'i35-city',
+    label: 'Austin I-35 corridor — city scale',
+    lon: -97.7365, lat: 30.235, height: 3000, heading: 8, pitch: -38,
+  },
+  {
+    id: 'i35-detail',
+    label: 'Austin I-35 at downtown — queue detail',
+    lon: -97.735, lat: 30.262, height: 1100, heading: 10, pitch: -45,
+  },
+  {
+    id: 'mumbai-wexp',
+    label: 'Mumbai Western Express Hwy — live morning rush',
+    lon: 72.851, lat: 19.115, height: 3200, heading: 0, pitch: -40,
+  },
+];
+const MODES = ['none', 'density', 'heatline', 'both'];
+
+const CHROME_EXECUTABLE_CANDIDATES = [
+  process.env.PUPPETEER_EXECUTABLE_PATH,
+  // Prefer puppeteer's version-pinned Chrome-for-Testing over the system
+  // Chrome: /Applications auto-updates underneath the harnesses, and its
+  // software-GL behavior shifts across majors (system Chrome 150 blew the
+  // tile-gated drain budget under SwiftShader on 2026-07-30 — six
+  // false-negative qa-cctv-v2 runs against a healthy build). A deterministic
+  // pinned browser beats the newest one for regression harnesses.
+  (() => { try { return puppeteer.executablePath(); } catch { return null; } })(),
+  '/Applications/Google Chrome.app/Contents/MacOS/Google Chrome',
+  '/Applications/Google Chrome Canary.app/Contents/MacOS/Google Chrome Canary',
+  '/Applications/Chromium.app/Contents/MacOS/Chromium',
+].filter(Boolean);
+const findChromeExecutable = () =>
+  CHROME_EXECUTABLE_CANDIDATES.find((c) => { try { return fs.existsSync(c); } catch { return false; } }) || null;
+
+const sleep = (ms) => new Promise((r) => setTimeout(r, ms));
+
+/** Same pattern as qa-cctv-v2: wait for the 3D tileset to settle for crisp shots. */
+function waitForTilesLoaded(page, timeoutMs) {
+  return page.waitForFunction(
+    () => {
+      const prims = window.__godsEyeView.viewer.scene.primitives;
+      for (let i = 0; i < prims.length; i++) {
+        const p = prims.get(i);
+        if (p && p.constructor && p.constructor.name === 'Cesium3DTileset') {
+          return p.tilesLoaded === true;
+        }
+      }
+      return true;
+    },
+    { timeout: timeoutMs }
+  ).then(() => true).catch(() => false);
+}
+
+/** Teleport to a view (cancelling any camera flight first). */
+function setView(page, v) {
+  return page.evaluate((view) => {
+    const gev = window.__godsEyeView;
+    try { gev.viewer.camera.cancelFlight(); } catch { /* no flight */ }
+    const ell = gev.viewer.scene.globe.ellipsoid;
+    const d2r = Math.PI / 180;
+    gev.viewer.camera.setView({
+      destination: ell.cartographicToCartesian({
+        longitude: view.lon * d2r, latitude: view.lat * d2r, height: view.height,
+      }),
+      orientation: {
+        heading: (view.heading || 0) * d2r,
+        pitch: (view.pitch ?? -90) * d2r,
+        roll: 0,
+      },
+    });
+  }, v);
+}
+
+/**
+ * Poll layer stats until a render newer than `sinceLastUpdate` settles.
+ * Returns the last sample with `renderSettled` reporting whether the
+ * freshness predicate was actually met — on timeout the sample is stale
+ * (possibly still-colored buckets from the previous view), and a caller that
+ * cannot tell the difference will pass a capture that never rendered.
+ */
+function waitForFreshRender(page, sinceLastUpdate, timeoutS = 40) {
+  return page.evaluate(async (since, tS) => {
+    const mod = window.__godsEyeView.dataManager.layers.get('traffic').module;
+    let s = null;
+    let renderSettled = false;
+    for (let i = 0; i < tS; i++) {
+      await new Promise((r) => setTimeout(r, 1000));
+      s = mod.getStats();
+      if (s.lastUpdate && s.lastUpdate !== since && s.count > 0 && !s.loading) {
+        renderSettled = true;
+        break;
+      }
+    }
+    return { ...s, renderSettled };
+  }, sinceLastUpdate, timeoutS);
+}
+
+async function main() {
+  console.log('\nJam-viz A/B capture');
+  console.log(`  App URL : ${APP_URL}`);
+  console.log(`  Out dir : ${OUT_DIR}\n`);
+
+  try {
+    const res = await fetch(APP_URL);
+    if (!res.ok) throw new Error(`HTTP ${res.status}`);
+  } catch (e) {
+    console.error(`Dev server not reachable at ${APP_URL} (${e.message}).`);
+    process.exit(2);
+  }
+  const status = await fetch(`${APP_URL}/api/tomtom/status`).then((r) => r.json()).catch(() => null);
+  if (!status?.hasKey) {
+    console.error('Server has no TomTom key — the A/B needs live flow.');
+    process.exit(2);
+  }
+
+  fs.mkdirSync(OUT_DIR, { recursive: true });
+  const browser = await puppeteer.launch({
+    headless: 'new',
+    ...(findChromeExecutable() ? { executablePath: findChromeExecutable() } : {}),
+    args: [
+      '--no-sandbox', '--disable-setuid-sandbox', '--use-gl=angle', '--use-angle=swiftshader',
+      '--disable-dev-shm-usage', '--disable-web-security',
+      '--disable-background-timer-throttling', '--disable-renderer-backgrounding',
+      '--window-size=1600,900',
+    ],
+  });
+
+  const manifest = [];
+  let exitCode = 0;
+  try {
+    const page = await browser.newPage();
+    await page.setViewport({ width: 1600, height: 900 });
+    console.log('Loading app...');
+    await page.goto(APP_URL, { waitUntil: 'domcontentloaded', timeout: 60000 });
+    await page.waitForFunction(
+      () => window.__godsEyeView?.viewer && window.__godsEyeView?.dataManager,
+      { timeout: 60000 },
+    );
+    await page.evaluate(() => window.__godsEyeView.dataManager.setEnabled('traffic', true));
+    await sleep(1500);
+
+    let firstView = true;
+    for (const view of VIEWS) {
+      console.log(`\n── ${view.label} (${view.id})`);
+      for (const mode of MODES) {
+        // Apply the mode, then force a re-render AT THE EXACT SAME framing:
+        // hop ~8.6 km east (defeats the overlap/center-shift gate — adjacent
+        // views alone can sit inside it), WAIT for the away render to commit
+        // (otherwise its late commit satisfies the freshness poll and the
+        // shot captures the away render), then return — the comeback load
+        // re-spawns with the new mode active.
+        await page.evaluate((m) => {
+          window.__godsEyeView.dataManager.layers.get('traffic').module.setParams({ jamViz: m });
+        }, mode);
+        const preHop = await page.evaluate(
+          () => window.__godsEyeView.dataManager.layers.get('traffic').module.getStats().lastUpdate,
+        );
+        await setView(page, { ...view, lon: view.lon + 0.09 });
+        const hop = await waitForFreshRender(page, preHop, 30);
+        const since = await page.evaluate(
+          () => window.__godsEyeView.dataManager.layers.get('traffic').module.getStats().lastUpdate,
+        );
+        await setView(page, view);
+        const stats = await waitForFreshRender(page, since);
+        await waitForTilesLoaded(page, firstView ? 30000 : 15000);
+        await sleep(1400); // flow-recolor race + heat-line pulse mid-bright
+
+        const final = await page.evaluate(() => {
+          const mod = window.__godsEyeView.dataManager.layers.get('traffic').module;
+          return { stats: mod.getStats(), params: mod.getParams() };
+        });
+        const shot = `${view.id}--${mode}.png`;
+        await page.screenshot({ path: path.join(OUT_DIR, shot) });
+
+        const b = final.stats.flowBuckets || {};
+        // `mode` is the CONFIGURED source, not feed health: a keyed run whose
+        // TomTom flow died still reports mode 'live' while every dot renders
+        // simulated white. Health is `!error` + actually-colored dots.
+        const colored = (b.free || 0) + (b.slow || 0) + (b.jam || 0);
+        // A capture whose waits timed out shows the PREVIOUS view's dots.
+        // That is a failed capture, not a footnote in the manifest.
+        const renderSettled = Boolean(hop.renderSettled && stats.renderSettled)
+          && !final.stats.loading;
+        const ok = renderSettled && final.stats.mode === 'live' && !final.stats.error
+          && final.stats.count > 0 && colored > 0
+          && final.params.jamViz === mode
+          && (mode !== 'none' || final.stats.heatLines === 0);
+        if (!ok) exitCode = 1;
+        console.log(`  [${ok ? 'OK' : 'FAIL'}] ${shot}  dots=${final.stats.count} `
+          + `free=${b.free} slow=${b.slow} jam=${b.jam} sim=${b.sim} `
+          + `heatLines=${final.stats.heatLines} cov=${final.stats.flowCoveragePct}% `
+          + `err=${final.stats.error || 'none'} settled=${renderSettled}`);
+        manifest.push({
+          view: view.id, label: view.label, mode, shot,
+          capturedAt: new Date().toISOString(),
+          count: final.stats.count, flowBuckets: b,
+          heatLines: final.stats.heatLines,
+          closedRoads: final.stats.closedRoads,
+          coveragePct: final.stats.flowCoveragePct,
+          error: final.stats.error || null,
+          renderSettled,
+        });
+        firstView = false;
+      }
+    }
+  } catch (e) {
+    console.error('Harness error:', e);
+    exitCode = 3;
+  } finally {
+    fs.writeFileSync(path.join(OUT_DIR, 'manifest.json'), JSON.stringify(manifest, null, 2));
+    await browser.close();
+  }
+  console.log(`\nShots + manifest.json → ${OUT_DIR}`);
+  process.exit(exitCode);
+}
+
+main().catch((e) => { console.error(e); process.exit(3); });