import {Latus} from '@latus/core';
import {expect} from 'chai';

describe('Layer', () => {
  let latus;
  beforeEach(async () => {
    latus = Latus.mock({
      '@avocado/entity': require('@avocado/entity'),
      '@avocado/resource': require('@avocado/resource'),
      '@avocado/topdown': require('../src'),
      '@avocado/traits': require('@avocado/traits'),
    });
    await Promise.all(latus.invokeFlat('@latus/core/starting'));
  });
  it('has sane defaults', async () => {
    const {Layer} = latus.get('%resources');
    const layer = new Layer();
    expect(Object.keys(layer.entities).length).to.equal(0);
    expect(layer.tiles.size).to.deep.equal([0, 0]);
  });
  describe('entity list interaction', () => {
    let entity;
    let layer;
    beforeEach(async () => {
      const {Entity, EntityList, Layer} = latus.get('%resources');
      entity = await Entity.load({
        traits: {
          Existent: {},
          Layered: {},
          Listed: {},
        },
      });
      const entityList = new EntityList();
      entityList.addEntity(entity);
      layer = new Layer();
      layer.setEntityList(entityList);
    })
    it('delegates to entity list', async () => {
      expect(Object.keys(layer.entities).length).to.equal(1);
    });
    it('can find entities', async () => {
      expect(layer.findEntity(entity.instanceUuid)).to.equal(entity);
    });
  });
});