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

  points.topLeft = points.bottomLeft.shiftFractionTowards(points.topLeft, 0.75);
  points.topRight = new Point(
    points.bottomRight.x,
    points.topLeft.y
  );
  if (options.pocketRadius > 0) {
    macro("round", {
      from: points.topLeft,
      to: points.bottomRight,
      via: points.bottomLeft,
      radius: store.get("pocketRadius"),
      prefix: "roundLeft"
    });
    macro("round", {
      from: points.bottomLeft,
      to: points.topRight,
      via: points.bottomRight,
      radius: store.get("pocketRadius"),
      prefix: "roundRight"
    });

    paths.seam = new Path()
      .move(points.topLeft)
      .line(points.roundLeftStart)
      .curve(points.roundLeftCp1, points.roundLeftCp2, points.roundLeftEnd)
      .line(points.roundRightStart)
      .curve(points.roundRightCp1, points.roundRightCp2, points.roundRightEnd)
  } else {
  paths.seam = new Path()
    .move(points.topLeft)
    .line(points.bottomLeft)
    .line(points.bottomRight);
  }

  paths.seam = paths.seam
    .line(points.topRight)
    .line(points.topLeft)
    .close()
    .attr("class", "lining");

  delete paths.fold;

  if (complete) {
    points.title = points.topLeft.shiftFractionTowards(points.bottomRight, 0.5);
    macro("title", {
      at: points.title,
      nr: 16,
      title: "pocketLining"
    });

    macro("grainline", {
      from: points.bottomLeft.shift(0, 10+store.get("pocketRadius")),
      to: points.topLeft.shift(0, 10+store.get("pocketRadius")),
    });

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

    if (paperless) {
      macro("vd", {
        from: points.bottomRight,
        to: points.topRight,
        x: points.topRight.x + sa + 15
      });
      macro("hd", {
        from: points.topLeft,
        to: points.topRight,
        y: points.topRight.y - sa - 15
      });
      if (options.pocketRadius > 0) {
        macro("hd", {
          from: points.roundRightStart,
          to: points.roundRightEnd,
          y: points.bottomRight.y + sa + 15
        });
      }
    }
  }

  return part;
}