import { calculateReduction } from "./shared";


export default part => {
  // prettier-ignore
  let {store, measurements, utils, sa, Point, points, Path, paths, Snippet, snippets, complete, paperless, macro, options} = part.shorthand();

  const collarDelta = () => paths.collar.length() * 2 + store.get("backCollarLength") - store.get("collarLength");

  // Populare store with data we need
  calculateReduction(part);
  store.set("frontArmholeLength", new Path()
      .move(points.armhole)
      .curve(points.armholeCp2, points.armholeHollowCp1, points.armholeHollow)
      .curve(points.armholeHollowCp2, points.armholePitchCp1, points.armholePitch)
      .curve(points.armholePitchCp2, points.shoulderCp1, points.shoulder)
      .length());
  store.set("collarLength", measurements.neckCircumference * (1+options.collarEase));


  // Waist shaping
  let reduce = store.get('waistReduction');
  if(reduce/4 > options.minimalDartShaping) reduce = reduce/8;
  else reduce = reduce/4;
  points.waist = points.waist.shift(180, reduce);
  points.waistCp1 = points.waist.shift(-90, measurements.naturalWaistToHip * 0.5);
  points.waistCp2 = points.waist.shift(90, points.armhole.dy(points.waist)/2);
  points.hipsCp2 = points.hips.shift(90, points.waist.dy(points.hips)/4);

  // Draft hem
  paths.saBaseFromHips = new Path()
    .move(points.hips)
    .curve(points.hipsCp2, points.waistCp1, points.waist)
    .curve_(points.waistCp2, points.armhole);
  paths.saBaseFromArmhole = new Path()
    .move(points.armhole)
    .curve(points.armholeCp2, points.armholeHollowCp1, points.armholeHollow)
    .curve(points.armholeHollowCp2, points.armholePitchCp1, points.armholePitch)
    .curve(points.armholePitchCp2, points.shoulderCp1, points.shoulder)
    .line(points.neck)
    .curve(points.neckCp2Front, points.cfNeckCp1, points.cfNeck);
  switch(options.hemStyle) {
    case "baseball":
      points.bballStart = points.cfHem.shiftFractionTowards(points.hem, 0.5);
      points.bballEnd = points.hem.shiftFractionTowards(points.hips, options.hemCurve);
      points.bballCp1 = points.bballStart.shiftFractionTowards(points.hem, 0.5);
      points.bballCp2 = new Point(points.bballCp1.x, points.bballEnd.y);
      paths.saBase = new Path()
        .move(points.bballEnd)
        .line(points.hips)
        .join(paths.saBaseFromHips);

        paths.hemBase = new Path()
        .move(points.cfHem)
        .line(points.bballStart)
        .curve(points.bballCp1, points.bballCp2, points.bballEnd);
      break;
    case "slashed":
      macro("round", {
        from: points.hips,
        to: points.cfHem,
        via: points.hem,
        radius: points.hips.dist(points.hem) * options.hemCurve,
        prefix: "slash",
      });
      paths.saBase = new Path()
        .move(points.hips)
        .join(paths.saBaseFromHips);
      paths.hemBase = new Path()
        .move(points.cfHem)
        .line(points.slashEnd)
        .curve(points.slashCp2, points.slashCp1, points.slashStart);
      break;
    default:
      paths.saBase = new Path()
        .move(points.hem)
        .line(points.hips)
        .join(paths.saBaseFromHips);
      paths.hemBase = new Path().move(points.cfHem).line(points.hem);
  }

  // Paths
  paths.saBase.render = false;
  paths.saBaseFromHips.render = false;
  paths.saBaseFromArmhole.render = false;
  paths.hemBase.render = false;
  paths.seam = paths.hemBase.join(paths.saBase).join(paths.saBaseFromArmhole).close().attr('class', 'fabric');

  // Complete pattern?
  if (complete) {
    delete paths.cutonfold;
    macro("grainline", {
      from: points.cfHem.shift(0, 45),
      to: points.cfNeck.shift(0, 45)
    });
    macro("title", { at: points.title, nr: "X", title: "front" });

    if(sa) {
      paths.saFrench = paths.saBase.offset(sa*2).attr('class', 'fabric sa');
      paths.saFromArmhole = paths.saBaseFromArmhole.offset(sa).attr('class', 'fabric sa');
      paths.hemSa = paths.hemBase.offset(sa*3).attr('class', 'fabric sa');
      paths.saConnect = new Path()
        .move(points.cfHem)
        .line(paths.hemSa.start())
        .move(paths.hemSa.end())
        .line(paths.saFrench.start())
        .move(paths.saFrench.end())
        .line(paths.saFromArmhole.start())
        .move(paths.saFromArmhole.end())
        .line(points.cfNeck)
        .attr('class', 'fabric sa');
      delete paths.sa;
    }
  }

  // Paperless?
  if (paperless) {
  }

  return part;
};