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

  if (!options.adjustmentRibbon) {
    part.render = false;
    return part;
  }

  // Points
  points.bottomLeft = new Point(0, 0.5 * store.get("ribbonWidth"));
  points.topLeft = points.bottomLeft.flipY();
  // FIXME: How long should this adjustment ribbon be?
  points.bottomRight = points.bottomLeft.shift(
    0,
    measurements.neckCircumference
  );
  points.topRight = points.bottomRight.flipY();
  points.titleAnchor = points.topLeft.shiftFractionTowards(
    points.bottomRight,
    0.5
  );

  // Paths
  paths.seam = new Path()
    .move(points.topLeft)
    .line(points.bottomLeft)
    .line(points.bottomRight)
    .line(points.topRight)
    .line(points.topLeft)
    .close()
    .attr("class", "fabric");

  if (complete) {
    if (sa) paths.sa = paths.seam.offset(sa).attr("class", "fabric sa");
    macro("title", {
      at: points.titleAnchor,
      nr: 4,
      title: "ribbon",
      scale: 0.5
    });

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

  return part;
}