import Constants from './Constants';
import LayoutManager from '../../../src/components/layout/LayoutManager';

describe('Symmetric Test Suite', () => {
  describe('symmetricTest', () => {
    const position = { x: 0, y: 0 };
    const manager = new LayoutManager(0, Constants.ROOT_NODE_SIZE);

    manager.addNode(1, Constants.NODE_SIZE, position);
    manager.addNode(2, Constants.NODE_SIZE, position);
    manager.addNode(3, Constants.NODE_SIZE, position);
    manager.addNode(4, Constants.NODE_SIZE, position);
    manager.addNode(5, Constants.NODE_SIZE, position);
    manager.addNode(6, Constants.NODE_SIZE, position);
    manager.addNode(7, Constants.NODE_SIZE, position);
    manager.addNode(8, Constants.NODE_SIZE, position);
    manager.addNode(9, Constants.NODE_SIZE, position);
    manager.addNode(10, Constants.NODE_SIZE, position);
    manager.addNode(11, Constants.NODE_SIZE, position);
    manager.addNode(12, Constants.NODE_SIZE, position);
    manager.addNode(13, Constants.NODE_SIZE, position);
    manager.addNode(14, Constants.NODE_SIZE, position);
    manager.connectNode(0, 14, 0);
    manager.connectNode(14, 13, 0);
    manager.connectNode(13, 1, 0);
    manager.connectNode(13, 2, 1);
    manager.connectNode(13, 3, 2);
    manager.connectNode(13, 4, 3);
    manager.connectNode(13, 5, 4);
    manager.connectNode(1, 6, 0);
    manager.connectNode(1, 7, 1);
    manager.connectNode(7, 8, 0);
    manager.connectNode(8, 9, 0);
    manager.connectNode(5, 10, 0);
    manager.connectNode(6, 11, 0);
    manager.connectNode(6, 12, 1);

    manager.layout();

    test('All nodes should be positioned symmetrically with respect to their common ancestors', () => {
      expect(manager.find(14).getPosition().y).toEqual(manager.find(13).getPosition().y);
      expect(manager.find(5).getPosition().y).toEqual(manager.find(10).getPosition().y);
      expect(manager.find(11).getPosition().y - manager.find(6).getPosition().y)
        .toEqual(-(manager.find(12).getPosition().y - manager.find(6).getPosition().y));
      expect(manager.find(8).getPosition().y - manager.find(1).getPosition().y)
        .toEqual(-(manager.find(11).getPosition().y - manager.find(1).getPosition().y));
      expect(manager.find(9).getPosition().y - manager.find(1).getPosition().y)
        .toEqual(-(manager.find(11).getPosition().y - manager.find(1).getPosition().y));
    });
  });

  describe('symmetricDragPredictTest', () => {
    const position = { x: 0, y: 0 };
    const manager = new LayoutManager(0, Constants.ROOT_NODE_SIZE);
    manager.addNode(1, Constants.NODE_SIZE, position).connectNode(0, 1, 1);
    manager.addNode(2, Constants.NODE_SIZE, position).connectNode(1, 2, 0);
    manager.layout();

    test('Prediction A', () => {
      const prediction1a = manager.predict(1, 2, { x: -250, y: -20 });
      expect(prediction1a.position.x).toEqual(manager.find(2).getPosition().x);
      expect(prediction1a.position.y).toEqual(manager.find(2).getPosition().y);
      expect(prediction1a.order).toEqual(manager.find(2).getOrder());
    });

    test('Prediction B', () => {
      const prediction1b = manager.predict(1, 2, { x: -250, y: 20 });
      expect(prediction1b.position.x).toEqual(manager.find(2).getPosition().x);
      expect(prediction1b.position.y).toEqual(manager.find(2).getPosition().y);
      expect(prediction1b.order).toEqual(manager.find(2).getOrder());
    });

    test('Prediction C', () => {
      const prediction1c = manager.predict(0, 2, { x: -100, y: -20 });
      expect(prediction1c.position.x).toEqual(manager.find(1).getPosition().x);
      expect(prediction1c.position.y).toBeLessThan(manager.find(1).getPosition().y);
      expect(prediction1c.order).toEqual(manager.find(1).getOrder());
    });

    test('Prediction D', () => {
      const prediction1d = manager.predict(0, 2, { x: -100, y: 20 });
      expect(prediction1d.position.x).toEqual(manager.find(1).getPosition().x);
      expect(prediction1d.position.y).toBeGreaterThan(manager.find(1).getPosition().y);
      expect(prediction1d.order).toEqual(3);
    });

    test('Prediction E', () => {
      const prediction1e = manager.predict(1, 2, { x: -250, y: 0 });
      expect(prediction1e.position.x).toEqual(manager.find(2).getPosition().x);
      expect(prediction1e.position.y).toEqual(manager.find(2).getPosition().y);
      expect(prediction1e.order).toEqual(manager.find(2).getOrder());
    });
  });
});