export default function(part) {
  let { paperless, sa, snippets, Snippet, store, complete, points, measurements, options, macro, Point, paths, Path } = part.shorthand();

  let length = 1.6 * (store.get("cbToDart") + store.get("dartToSide"));
  let width = measurements.centerBackNeckToWaist * options.beltWidth;

  points.topLeft = new Point(0, 0);
  points.topRight = new Point(length, 0);
  points.bottomLeft = new Point(0, width);
  points.bottomRight = new Point(length, width);
  points.button = new Point(width/2, width/2);
  macro("round", {
    from: points.topRight,
    to: points.bottomLeft,
    via: points.topLeft,
    prefix: "roundTop",
    radius: width/4,
    render: true
  });
  macro("round", {
    from: points.topLeft,
    to: points.bottomRight,
    via: points.bottomLeft,
    prefix: "roundBottom",
    radius: width/4,
    render: true
  });

  // Paths
  paths.seam = new Path()
    .move(points.roundTopStart)
    .curve(points.roundTopCp1, points.roundTopCp2, points.roundTopEnd)
    .line(points.roundBottomStart)
    .curve(points.roundBottomCp1, points.roundBottomCp2, points.roundBottomEnd)
    .line(points.bottomRight)
    .line(points.topRight)
    .line(points.roundTopStart)
    .close()
    .attr("class", "fabric");

  if (complete) {
    snippets.button = new Snippet("button", points.button).attr("data-scale", 2);
    points.title = new Point(
      points.bottomRight.x/2,
      points.bottomRight.y/2
    );
    macro("title", {
      at: points.title,
      nr: 6,
      title: "belt"
    });
    points.logo = new Point(
      points.bottomRight.x * 0.75,
      points.bottomRight.y * 0.65
    );
    snippets.logo = new Snippet("logo", points.logo);

    if (sa) paths.sa = paths.seam.offset(sa).attr("class", "fabric sa");

    if (paperless) {
      macro("hd", {
        from: points.roundBottomStart,
        to: points.roundBottomEnd,
        y: points.roundBottomEnd.y + sa + 15
      });
      macro("hd", {
        from: points.roundBottomStart,
        to: points.button,
        y: points.roundBottomEnd.y + sa + 30
      });
      macro("hd", {
        from: points.roundBottomStart,
        to: points.bottomRight,
        y: points.roundBottomEnd.y + sa + 45
      });
      macro("vd", {
        from: points.bottomRight,
        to: points.topRight,
        x: points.topRight.x + sa + 15
      });
    }
  }

  return part;
}