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

  // Adapt length
  points.topLeft = points.edgeLeft.flipY(points.topLeft);
  points.topRight = points.edgeRight.flipY(points.topRight);

  // Clean up
  for (let i of Object.keys(paths)) delete paths[i];
  for (let i of Object.keys(snippets)) delete snippets[i];

  // Paths
  if (options.frontPocketRadius > 0) {
    paths.seam = new Path()
      .move(points.topLeft)
      .line(points.leftStart)
      .curve(points.leftCp1, points.leftCp2, points.leftEnd)
      .line(points.rightStart)
      .curve(points.rightCp1, points.rightCp2, points.rightEnd)
      .line(points.topRight)
      .line(points.topLeft)
      .close()
      .attr("class", "lining");
  } else {
    paths.seam = new Path()
      .move(points.topLeft)
      .line(points.bottomLeft)
      .line(points.bottomRight)
      .line(points.topRight)
      .line(points.topLeft)
      .close()
      .attr("class", "lining");
  }

  if (complete) {
    // Title
    points.title = points.topLeft.shiftFractionTowards(points.bottomRight, 0.5);
    macro("title", {
      at: points.title,
      nr: 10,
      title: "pocketLining"
    });

    // Grainline
    macro("grainline", {
      from: points.bottomLeft.shift(0 ,10),
      to: points.topLeft.shift(0 ,10)
    });

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

    if (paperless) {
      macro("hd", {
        from: points.topLeft,
        to: points.topRight,
        y: points.topLeft.y - sa - 15
      });
      let corner = points.bottomRight
      if (options.frontPocketRadius > 0) corner = points.rightStart;
      macro("vd", {
        from: corner,
        to: points.topRight,
        x: points.topRight.x + sa + 15
      });
    }
  }

  return part;
}