import assert from 'node:assert/strict';
import test from 'node:test';
import { PerspectiveCamera } from 'three';
import { createRenderInvalidation } from '../src/scene/renderInvalidation.ts';

test('unchanged frames skip rendering but each live update requests a fresh frame', () => {
  const render = createRenderInvalidation();
  const camera = new PerspectiveCamera();
  assert.equal(render.shouldRender(camera), true);
  assert.equal(render.shouldRender(camera), false);
  for (let tick = 0; tick < 3; tick++) {
    render.invalidate();
    assert.equal(render.shouldRender(camera), true);
    assert.equal(render.shouldRender(camera), false);
  }
});

test('movement, rotation, camera switches and ocean animation remain visible', () => {
  const render = createRenderInvalidation();
  const camera = new PerspectiveCamera();
  render.shouldRender(camera);
  camera.position.x = 1;
  assert.equal(render.shouldRender(camera), true);
  camera.rotation.y = 0.2;
  assert.equal(render.shouldRender(camera), true);
  assert.equal(render.shouldRender(camera.clone()), true);
  assert.equal(render.shouldRender(camera, true), true);
  assert.equal(render.shouldRender(camera, true), true);
});