import assert from 'assert';
import Cell, { Direction, Item } from './Cell';

const { North, East, South, West } = Direction;
const { Road, Town, Empty, River } = Item;

describe('Cell', () => {
  describe('getSide', () => {
    it('Should get North, East, South and West sides correctly', () => {
      const cell = new Cell(Empty, [Road, Town, Empty, River]);

      assert.strictEqual(cell.getSide(North), Road);
      assert.strictEqual(cell.getSide(East), Town);
      assert.strictEqual(cell.getSide(South), Empty);
      assert.strictEqual(cell.getSide(West), River);
    });

    it('Should respect cell orientation', () => {
      const cell = new Cell(Empty, [Road, Town, Empty, River]);
      cell.rotate(5);

      assert.strictEqual(cell.getSide(North), River);
      assert.strictEqual(cell.getSide(East), Road);
      assert.strictEqual(cell.getSide(South), Town);
      assert.strictEqual(cell.getSide(West), Empty);
    });

    it('Should work with negative orientation', () => {
      const cell = new Cell(Empty, [Road, Town, Empty, River]);
      cell.rotate(-7);

      assert.strictEqual(cell.getSide(North), River);
      assert.strictEqual(cell.getSide(East), Road);
      assert.strictEqual(cell.getSide(South), Town);
      assert.strictEqual(cell.getSide(West), Empty);
    });
  });

  describe('getAttachments', () => {
    it('Should correclty list legal attachments', () => {
      const attachTo = new Cell(Town, [Road, Town, Town, Road])
      const cell = new Cell(Road, [Empty, Road, Road, Empty])

      const attachments = attachTo.getAttachments(cell);
      assert.strictEqual(attachments.length, 4);
      assert.deepStrictEqual(attachments[0], { side: 0, rotation: 0, cell, attachTo });
      assert.deepStrictEqual(attachments[1], { side: 0, rotation: 1, cell, attachTo });
      assert.deepStrictEqual(attachments[2], { side: 3, rotation: 0, cell, attachTo });
      assert.deepStrictEqual(attachments[3], { side: 3, rotation: 3, cell, attachTo });
    });
  });
});