import assert from 'node:assert/strict';
import test from 'node:test';

import { SceneMarkerStore } from './sceneMarkerStore';

void test('SceneMarkerStore: сохраняет штрихи при переключении сцен', () => {
  const store = new SceneMarkerStore();
  store.switchScene('scene_a');
  store.dispatch({
    kind: 'stroke.add',
    stroke: {
      id: 'm1',
      seed: 1,
      createdAtMs: 100,
      points: [{ x: 0.5, y: 0.5, tMs: 100 }],
      radiusN: 0.08,
      color: '#ff0000',
    },
  });

  store.switchScene('scene_b');
  assert.equal(store.getState().strokes.length, 0);

  store.switchScene('scene_a');
  assert.equal(store.getState().strokes.length, 1);
  assert.equal(store.getState().strokes[0]?.id, 'm1');
});

void test('SceneMarkerStore: resetSession очищает кэш', () => {
  const store = new SceneMarkerStore();
  store.switchScene('scene_a');
  store.dispatch({
    kind: 'stroke.add',
    stroke: {
      id: 'm1',
      seed: 1,
      createdAtMs: 100,
      points: [{ x: 0.2, y: 0.2, tMs: 100 }],
      radiusN: 0.08,
      color: '#00ff00',
    },
  });
  store.resetSession();
  store.switchScene('scene_a');
  assert.equal(store.getState().strokes.length, 0);
});

void test('SceneMarkerStore: strokes.erase удаляет точки под ластиком', () => {
  const store = new SceneMarkerStore();
  store.switchScene('scene_a');
  store.dispatch({
    kind: 'stroke.add',
    stroke: {
      id: 'm1',
      seed: 1,
      createdAtMs: 100,
      points: [
        { x: 0.1, y: 0.5, tMs: 100 },
        { x: 0.5, y: 0.5, tMs: 101 },
        { x: 0.9, y: 0.5, tMs: 102 },
      ],
      radiusN: 0.04,
      color: '#ff0000',
    },
  });
  store.dispatch({
    kind: 'strokes.erase',
    points: [{ x: 0.5, y: 0.5, tMs: 200 }],
    radiusN: 0.06,
  });
  const strokes = store.getState().strokes;
  assert.ok(strokes.length >= 1);
  assert.ok(strokes.every((s) => s.points.every((p) => Math.abs(p.x - 0.5) > 0.05)));
});

void test('SceneMarkerStore: strokes.clear удаляет все штрихи', () => {
  const store = new SceneMarkerStore();
  store.switchScene('scene_a');
  store.dispatch({
    kind: 'stroke.add',
    stroke: {
      id: 'm1',
      seed: 1,
      createdAtMs: 100,
      points: [{ x: 0.5, y: 0.5, tMs: 100 }],
      radiusN: 0.08,
      color: '#0000ff',
    },
  });
  store.dispatch({ kind: 'strokes.clear' });
  assert.equal(store.getState().strokes.length, 0);
  store.switchScene('scene_b');
  store.switchScene('scene_a');
  assert.equal(store.getState().strokes.length, 0);
});