export default function(part) {
  let {
    snippets,
    Point,
    macro,
    points,
    Path,
    paths,
    complete,
    sa,
    paperless
  } = part.shorthand();
  // Clean up paths from paperless dimensions
  for (let id in paths) delete paths[id];

  // We need to split the crotch curve at the bottom of the fly
  paths.fly = new Path()
    .move(points[-501])
    .curve(points[-502], points["-6cp"], points[-6])
    .split(points[43])
    .pop();
  paths.fly.render = false;

  // We need to split the waist curve at the edge of the fly
  let waist = new Path()
    .move(points[-100101])
    .curve_(points[-1002], points[-1102]);
  points.splitWaist = waist.shiftAlong(points[-100101].dist(points[-40]));
  paths.waist = waist.split(points.splitWaist).shift();
  paths.waist.render = false;

  paths.seam = paths.waist
    .clone()
    .line(points[41])
    .curve(points[45], points[44], points[43])
    .join(paths.fly)
    .line(points[-100101])
    .close()
    .attr("class", "fabric");

  // Complete pattern?
  if (complete) {
    if (sa) paths.sa = paths.seam.offset(sa * -1).attr("class", "fabric sa");
    points.title = points[9019].clone();
    macro("title", {
      at: points.title,
      title: "flyPiece",
      nr: 6,
      scale: 0.7
    });
    points.grainlineTop = points[-100101].shiftFractionTowards(
      points.splitWaist,
      0.3
    );
    points.grainlineBottom = new Point(points.grainlineTop.x, points[41].y);
    macro("grainline", {
      from: points.grainlineBottom,
      to: points.grainlineTop
    });
    delete paths.pocket;
    delete paths.lining;
    delete snippets.logo;
    macro("scalebox", false);
  }

  // Paperless?
  if (paperless) {
    macro("hd", {
      from: points[-100101],
      to: points.splitWaist,
      y: points.splitWaist.y - sa - 15
    });
    macro("hd", {
      from: points.flyPretipX,
      to: points.splitWaist,
      y: points.splitWaist.y - sa - 30
    });
    macro("vd", {
      from: points.flyPretipX,
      to: points.splitWaist,
      x: points.splitWaist.x + sa + 15
    });
  }

  return part;
}