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

  paths.hint = new Path()
    .move(points.tipLeft)
    .curve(points.tipLeftCp2, points.outerMidCp1, points.outerMid)
    .curve(points.outerMidCp2, points.tipRightCp1, points.tipRight)
    .attr("class", "dashed stroke-sm");

  paths.seam = paths.hint.offset(3);
  paths.seam = paths.seam
    .line(points.tipRight)
    .curve(points.tipRightCp2, points.innerMidCp1, points.innerMid)
    .curve(points.innerMidCp2, points.tipLeftCp1, points.tipLeft)
    .line(paths.seam.start())
    .close()
    .attr("class", "fabric");

  if (complete) {
    points.title = points.innerMid.shiftFractionTowards(
      points.outerMidCp2,
      0.35
    );
    macro("title", {
      at: points.title,
      nr: 4,
      title: "brimTop"
    });
    macro("grainline", {
      from: points.outerMid,
      to: points.innerMid
    });

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

    if (paperless) {
      let bottom = paths.seam.edge("bottom");
      macro("hd", {
        from: paths.seam.edge("left"),
        to: paths.seam.edge("right"),
        y: points.tipLeft.y - sa - 15
      });
      macro("vd", {
        from: bottom,
        to: points.innerMid,
        x: points.innerMid.x - 15
      });
      macro("vd", {
        from: bottom,
        to: points.tipRight,
        x: points.tipRight.x + sa + 18
      });
    }
  }

  return part;
}