import { dimensions } from './shared';

export default function(part) {
  // prettier-ignore
  let {store, sa, Point, points, Path, paths, Snippet, snippets, options, complete, paperless, macro, utils, units} = part.shorthand();

  // Hide Brian paths
  for(let key of Object.keys(paths)) paths[key].render = false;

  points.strapLeftCp2 = utils.beamsIntersect(
    points.strapLeft,
    points.strapCenter.rotate(90, points.strapLeft),
    points.cbNeck,
    points.cbNeck.shift(0,10)
  );

  points.armholeCp2 = points.aaronArmhole.shiftFractionTowards(points.armholeCorner, options.backlineBend);
  points.strapRightCp1 = points.strapRight.shiftFractionTowards(points.armholeCorner, options.backlineBend);

  // Seamline
  paths.seam = new Path()
    .move(points.cbNeck)
    .line(points.cbHips)
    .line(points.hips)
    .line(points.waist)
    .join(paths.side)
    .curve(points.armholeCp2, points.strapRightCp1, points.strapRight)
    .line(points.strapLeft)
    .curve(points.strapLeftCp2, points.cbNeck, points.cbNeck)
    .close()
    .attr("class", "fabric");

  // Complete pattern?
  if (complete) {
    let neckOpeningLength = new Path()
      .move(points.strapLeft)
      .curve(points.strapLeftCp2, points.cbNeck, points.cbNeck)
      .length() + store.get('frontNeckOpeningLength');
    let armholeLength = new Path()
      .move(points.aaronArmhole)
      .curve(points.armholeCp2, points.strapRightCp1, points.strapRight)
      .length() + store.get('frontArmholeLength');
    points.bindinAnchor = new Point(points.aaronArmhole.x / 4, points.aaronArmhole.y)
      .attr('data-text', 'cutTwoStripsToFinishTheArmholes')
      .attr('data-text', ":\n")
      .attr('data-text', "width")
      .attr('data-text', ":")
      .attr('data-text', units(sa*6))
      .attr('data-text', "\n")
      .attr('data-text', "length")
      .attr('data-text', ":")
      .attr('data-text', units(armholeLength * 0.95 + 2*sa))
      .attr('data-text', "\n \n")
      .attr('data-text', 'cutOneStripToFinishTheNeckOpening')
      .attr('data-text', ":\n")
      .attr('data-text', "width")
      .attr('data-text', ":")
      .attr('data-text', units(sa*6))
      .attr('data-text', "\n")
      .attr('data-text', "length")
      .attr('data-text', ":")
      .attr('data-text', units(neckOpeningLength * 0.95 + 2*sa))
      .attr('data-text-lineheight', 6);

    macro("cutonfold", {
      from: points.cfNeck,
      to: points.cfHips,
      grainline: true
    });

    macro("title", { at: points.title, nr: 2, title: "back" });
    points.scaleboxAnchor = points.scalebox = points.title.shift(90, 100);
    macro("scalebox", { at: points.scalebox });
  }

  // Paperless?
  if (paperless) {
    dimensions(macro, points, sa);
    macro("vd", {
      from: points.cbHips,
      to: points.cbNeck,
      x: points.cbHips.x - sa - 15
    });
  }

  return part;
};