import { Adsorber } from './adsorber';
import { Rectangle } from '@gedit/math';
import * as chai from 'chai';
const expect = chai.expect;

const target = new Rectangle(0, 0, 100, 100);
describe('Playground.Adsorber', () => {
  let adsorber: Adsorber;
  const DELTA = 20;
  beforeEach(() => {
    adsorber = new Adsorber({
      adSorbDelta: DELTA
    });
  });
  it('calculateDelta empty', () => {
    expect(adsorber.calculateDelta(target, [], [])).to.eql({ x: undefined, y: undefined });
  });
  it ('calculateDelta with refs far away', () => {
    const refs: Rectangle[] = [
      new Rectangle(-1040, -1040, 20, 20),
      new Rectangle(1040, 1040, 20, 20)
    ];
    expect(adsorber.calculateDelta(target, refs, [])).to.eql({ x: undefined, y: undefined});
  });
  it ('calculateDelta with refs nearest', () => {
    const refs: Rectangle[] = [
      new Rectangle(-90, -90, 20, 20),
      new Rectangle(10, 10, 20, 20)
    ];
    // 右边
    expect(adsorber.calculateDelta(target, refs, [])).to.eql({ x: 10, y: 10});
    const refs2: Rectangle[] = [
      new Rectangle(-1, -1, 20, 20),
      new Rectangle(10, 10, 20, 20)
    ];
    // 左边
    expect(adsorber.calculateDelta(target, refs2, [])).to.eql({ x: -1, y: -1 });
    const refs3: Rectangle[] = [
      new Rectangle(-7, -7, 20, 20),
      new Rectangle(10, 10, 20, 20)
    ];
    // 中线
    expect(adsorber.calculateDelta(target, refs3, [])).to.eql({ x: 3, y: 3 });
  });
  it ('calculateDelta with snaplines', () => {
    const refs: Rectangle[] = [
      new Rectangle(-5, -5, 20, 20),
      new Rectangle(10, 10, 20, 20)
    ];
    const lines: Adsorber.Line[] = [{
      type: Adsorber.Direction.HORIZONTAL,
      pos: 104,
    }, {
      type: Adsorber.Direction.VERTICAL,
      pos: 103,
    }];
    expect(adsorber.calculateDelta(target, refs, lines)).to.eql({ x: 4, y: 3 });
  });
/*
  it('calculateDelta escape', () => {
    const refs: Rectangle[] = [
      new Rectangle(10, 10, 20, 20)
    ]
    expect(adsorber.calculateDelta(target, refs, [], { x: 0, y: 0 })).to.eql({ x: 10, y: 10 })
    // 吸附中，未逃逸
    expect(adsorber.calculateDelta(target, refs, [], { x: -10, y: -10 })).to.eql({ x: 0, y: 0})
    expect(adsorber.calculateDelta(target, refs, [], { x: -DELTA, y: -DELTA })).to.eql({ x: 0, y: 0})
    // 解除吸附，成功逃逸
    expect(adsorber.calculateDelta(target, refs, [], { x: -(DELTA + 1), y: -(DELTA + 1) })).to.eql({ x: undefined, y: undefined })
  })
*/
});