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

describe('@avocado/topdown', () => {
  describe('Tiles', () => {
    let latus;
    beforeEach(async () => {
      latus = Latus.mock([
        '@avocado/resource',
        ['@avocado/topdown', `${__dirname}/../src`],
      ]);
      await Promise.all(latus.invokeFlat('@latus/core/starting'));
    });
    it("has sane defaults", async () => {
      const {fromResourceType: {Tiles}} = resource(latus);
      const tiles = new Tiles();
      expect(tiles.size).to.deep.equal([0, 0]);
      expect(tiles.data.length).to.equal(0);
    });
    it("gets and sets tile data", async () => {
      const {fromResourceType: {Tiles}} = resource(latus);
      const tiles = new Tiles({data: [0, 1, 2, 3], size: [2, 2]});
      expect(tiles.tileAt([0, 0])).to.equal(0);
      expect(tiles.tileAt([1, 0])).to.equal(1);
      expect(tiles.tileAt([0, 1])).to.equal(2);
      expect(tiles.tileAt([1, 1])).to.equal(3);
      tiles.setTileAt([0, 0], 69);
      tiles.setTileAt([1, 0], 420);
      tiles.setTileAt([0, 1], 311);
      tiles.setTileAt([1, 1], 42);
      expect(tiles.data).to.deep.equal([69, 420, 311, 42]);
    });
    it("can get a data slice", async () => {
      const {fromResourceType: {Tiles}} = resource(latus);
      const tiles = new Tiles(
        {
          data: [
            0, 1, 2, 3,
            4, 5, 6, 7,
            8, 9, 10, 11,
            12, 13, 14, 15,
          ],
          size: [4, 4],
        },
      );
      expect(tiles.slice([1, 1, 2, 2])).to.deep.equal([5, 6, 9, 10]);
      expect(tiles.slice([1, 0, 3, 3])).to.deep.equal([1, 2, 3, 5, 6, 7, 9, 10, 11]);
      expect(tiles.slice([-1, -1, 5, 5])).to.deep.equal([0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15]);
      expect(tiles.slice([1, 1, 1, 1])).to.deep.equal([5]);
      expect(tiles.slice([1, 1, 0, 0])).to.deep.equal([]);
    });
  });
});