import { computeDasMap } from "/packages/acoustics-core/das.js";
import { distance3 } from "/packages/acoustics-core/math.js";
import { synthesizeMicrophoneSignals } from "/packages/acoustics-core/propagation.js";

async function loadJson(path) {
  const response = await fetch(path);
  assert(response.ok, `${path} load failed`);
  return response.json();
}

test("192채널 · 50×50 CPU baseline이 ground truth를 찾는다", async () => {
  const [arrayDefinition, scene, experiment] = await Promise.all([
    loadJson("/assets/array-geometries/rectangular-16x12.array.json"),
    loadJson("/assets/sample-scenes/single-tone.scene.json"),
    loadJson("/assets/sample-scenes/single-tone.experiment.json"),
  ]);
  const startedAt = performance.now();
  const synthesis = synthesizeMicrophoneSignals({ scene, arrayDefinition });
  const result = await computeDasMap({
    channels: synthesis.channels,
    sampleRate: synthesis.sampleRate,
    arrayDefinition,
    scene,
    experiment,
  });
  const elapsedMs = performance.now() - startedAt;
  const localizationError = distance3(result.bands[0].peak.position, scene.sources[0].position);

  assertEqual(result.microphoneCount, 192, "microphone count");
  assertEqual(result.pointCount, 2500, "scan point count");
  assert(localizationError < 0.03, `localization error=${localizationError} m`);
  assert(Number.isFinite(result.bands[0].peak.rawPower) && result.bands[0].peak.rawPower > 0, "finite peak power");
  globalThis.__micarrsimCpuBaseline = {
    channels: synthesis.channels,
    sampleRate: synthesis.sampleRate,
    arrayDefinition,
    scene,
    experiment,
    result,
  };
  document.documentElement.dataset.cpuBaselineMs = elapsedMs.toFixed(1);
});