/* globals SVGPathSeg */
import 'pathseg';
import { NS } from '../../../instrumented/svgcanvas/namespaces.js';
import * as utilities from '../../../instrumented/svgcanvas/utilities.js';
import * as pathModule from '../../../instrumented/svgcanvas/path.js';
import { Path, Segment } from '../../../instrumented/svgcanvas/path-method.js';
import { init as unitsInit } from '../../../instrumented/common/units.js';

describe('path', function () {
  /**
  * @typedef {GenericArray} EditorContexts
  * @property {module:path.EditorContext} 0
  * @property {module:path.EditorContext} 1
  */

  /**
  * @param {SVGSVGElement} [svg]
  * @returns {EditorContexts}
  */
  function getMockContexts (svg) {
    svg = svg || document.createElementNS(NS.SVG, 'svg');
    const selectorParentGroup = document.createElementNS(NS.SVG, 'g');
    selectorParentGroup.setAttribute('id', 'selectorParentGroup');
    svg.append(selectorParentGroup);
    return [
      /**
      * @implements {module:path.EditorContext}
      */
      {
        getSvgRoot () { return svg; },
        getZoom () { return 1; }
      },
      /**
      * @implements {module:utilities.EditorContext}
      */
      {
        getDOMDocument () { return svg; },
        getDOMContainer () { return svg; },
        getSvgRoot () { return svg; }
      }
    ];
  }

  it('Test svgedit.path.replacePathSeg', function () {
    const path = document.createElementNS(NS.SVG, 'path');
    path.setAttribute('d', 'M0,0 L10,11 L20,21Z');

    const [ mockPathContext, mockUtilitiesContext ] = getMockContexts();
    pathModule.init(mockPathContext);
    utilities.init(mockUtilitiesContext);
    new Path(path);

    assert.equal(path.pathSegList.getItem(1).pathSegTypeAsLetter, 'L');
    assert.equal(path.pathSegList.getItem(1).x, 10);
    assert.equal(path.pathSegList.getItem(1).y, 11);

    pathModule.replacePathSeg(SVGPathSeg.PATHSEG_LINETO_REL, 1, [ 30, 31 ], path);

    assert.equal(path.pathSegList.getItem(1).pathSegTypeAsLetter, 'l');
    assert.equal(path.pathSegList.getItem(1).x, 30);
    assert.equal(path.pathSegList.getItem(1).y, 31);
  });

  it('Test svgedit.path.Segment.setType simple', function () {
    const path = document.createElementNS(NS.SVG, 'path');
    path.setAttribute('d', 'M0,0 L10,11 L20,21Z');

    const [ mockPathContext, mockUtilitiesContext ] = getMockContexts();
    pathModule.init(mockPathContext);
    utilities.init(mockUtilitiesContext);
    new Path(path);

    assert.equal(path.pathSegList.getItem(1).pathSegTypeAsLetter, 'L');
    assert.equal(path.pathSegList.getItem(1).x, 10);
    assert.equal(path.pathSegList.getItem(1).y, 11);

    const segment = new Segment(1, path.pathSegList.getItem(1));
    segment.setType(SVGPathSeg.PATHSEG_LINETO_REL, [ 30, 31 ]);
    assert.equal(segment.item.pathSegTypeAsLetter, 'l');
    assert.equal(segment.item.x, 30);
    assert.equal(segment.item.y, 31);

    // Also verify that the actual path changed.
    assert.equal(path.pathSegList.getItem(1).pathSegTypeAsLetter, 'l');
    assert.equal(path.pathSegList.getItem(1).x, 30);
    assert.equal(path.pathSegList.getItem(1).y, 31);
  });

  it('Test svgedit.path.Segment.setType with control points', function () {
    // Setup the dom for a mock control group.
    const svg = document.createElementNS(NS.SVG, 'svg');
    const path = document.createElementNS(NS.SVG, 'path');
    path.setAttribute('d', 'M0,0 C11,12 13,14 15,16 Z');
    svg.append(path);

    const [ mockPathContext, mockUtilitiesContext ] = getMockContexts(svg);
    pathModule.init(mockPathContext);
    utilities.init(mockUtilitiesContext);
    const segment = new Segment(1, path.pathSegList.getItem(1));
    segment.path = new Path(path);

    assert.equal(path.pathSegList.getItem(1).pathSegTypeAsLetter, 'C');
    assert.equal(path.pathSegList.getItem(1).x1, 11);
    assert.equal(path.pathSegList.getItem(1).y1, 12);
    assert.equal(path.pathSegList.getItem(1).x2, 13);
    assert.equal(path.pathSegList.getItem(1).y2, 14);
    assert.equal(path.pathSegList.getItem(1).x, 15);
    assert.equal(path.pathSegList.getItem(1).y, 16);

    segment.setType(SVGPathSeg.PATHSEG_CURVETO_CUBIC_REL, [ 30, 31, 32, 33, 34, 35 ]);
    assert.equal(path.pathSegList.getItem(1).pathSegTypeAsLetter, 'c');
    assert.equal(path.pathSegList.getItem(1).x1, 32);
    assert.equal(path.pathSegList.getItem(1).y1, 33);
    assert.equal(path.pathSegList.getItem(1).x2, 34);
    assert.equal(path.pathSegList.getItem(1).y2, 35);
    assert.equal(path.pathSegList.getItem(1).x, 30);
    assert.equal(path.pathSegList.getItem(1).y, 31);
  });

  it('Test svgedit.path.Segment.move', function () {
    const path = document.createElementNS(NS.SVG, 'path');
    path.setAttribute('d', 'M0,0 L10,11 L20,21Z');

    const [ mockPathContext, mockUtilitiesContext ] = getMockContexts();
    pathModule.init(mockPathContext);
    utilities.init(mockUtilitiesContext);
    new Path(path);

    assert.equal(path.pathSegList.getItem(1).pathSegTypeAsLetter, 'L');
    assert.equal(path.pathSegList.getItem(1).x, 10);
    assert.equal(path.pathSegList.getItem(1).y, 11);

    const segment = new Segment(1, path.pathSegList.getItem(1));
    segment.move(-3, 4);
    assert.equal(path.pathSegList.getItem(1).pathSegTypeAsLetter, 'L');
    assert.equal(path.pathSegList.getItem(1).x, 7);
    assert.equal(path.pathSegList.getItem(1).y, 15);
  });

  it('Test svgedit.path.Segment.moveCtrl', function () {
    const path = document.createElementNS(NS.SVG, 'path');
    path.setAttribute('d', 'M0,0 C11,12 13,14 15,16 Z');

    const [ mockPathContext, mockUtilitiesContext ] = getMockContexts();
    pathModule.init(mockPathContext);
    utilities.init(mockUtilitiesContext);
    new Path(path);

    assert.equal(path.pathSegList.getItem(1).pathSegTypeAsLetter, 'C');
    assert.equal(path.pathSegList.getItem(1).x1, 11);
    assert.equal(path.pathSegList.getItem(1).y1, 12);
    assert.equal(path.pathSegList.getItem(1).x2, 13);
    assert.equal(path.pathSegList.getItem(1).y2, 14);
    assert.equal(path.pathSegList.getItem(1).x, 15);
    assert.equal(path.pathSegList.getItem(1).y, 16);

    const segment = new Segment(1, path.pathSegList.getItem(1));
    segment.moveCtrl(1, 100, -200);
    assert.equal(path.pathSegList.getItem(1).pathSegTypeAsLetter, 'C');
    assert.equal(path.pathSegList.getItem(1).x1, 111);
    assert.equal(path.pathSegList.getItem(1).y1, -188);
    assert.equal(path.pathSegList.getItem(1).x2, 13);
    assert.equal(path.pathSegList.getItem(1).y2, 14);
    assert.equal(path.pathSegList.getItem(1).x, 15);
    assert.equal(path.pathSegList.getItem(1).y, 16);
  });

  it('Test svgedit.path.convertPath', function () {
    unitsInit({
      getRoundDigits () { return 5; }
    });

    const path = document.createElementNS(NS.SVG, 'path');
    path.setAttribute('d', 'M40,55h20v20');

    const abs = pathModule.convertPath(path);
    assert.equal(abs, 'M40,55L60,55L60,75');

    const rel = pathModule.convertPath(path, true);
    assert.equal(rel, 'm40,55l20,0l0,20');
  });
});