export class InventoryArticle {
  constructor(article) {
    this.article = article;
    this.end = 0;
    this.start = 0;
    this.fetched = 0;
    this.lost = 0;
  }
  get StartPortions() {
    var countFull = Math.floor(this.start);
    var fullPortions = countFull * this.article.Portions;
    var rest = this.start - countFull;
    var restPortions = rest / this.article.PortionSize;

    return fullPortions + restPortions;
  }
  get FetchedPortions() {
    var countFull = Math.floor(this.fetched);
    var fullPortions = countFull * this.article.Portions;
    var rest = this.fetched - countFull;
    var restPortions = rest / this.article.PortionSize;

    return fullPortions + restPortions;
  }
  get EndPortions() {
    var countFull = Math.floor(this.end);
    var fullPortions = countFull * this.article.Portions;
    var rest = this.end - countFull;
    var restPortions = rest / this.article.PortionSize;

    return fullPortions + restPortions;
  }
  get LostPortions() {
    var countFull = Math.floor(this.lost);
    var fullPortions = countFull * this.article.Portions;
    var rest = this.lost - countFull;
    var restPortions = rest / this.article.PortionSize;

    return fullPortions + restPortions;
  }
  get Sold() {
    var adds = this.StartPortions + this.FetchedPortions;
    var subs = this.EndPortions + this.LostPortions;
    return adds - subs;
  }
  get Sale() {
    return this.Sold * this.article.PortionPrice;
  }
  get StepSize() {
    var singlePack = this.article.Portions == 1;
    return singlePack ? 1 : 0.05;
  }
  get PortionPrecision() {
    var singlePack = this.article.Portions == 1;
    return singlePack ? 0 : 2;
  }
  reset() {
    this.start = 0;
    this.fetched = 0;
    this.end = 0;
    this.lost = 0;
  }
}

InventoryArticle.thaw = function (json) {
  this.name = json.name;
  this.start = json.start;
  this.fetched = json.fetched;
  this.end = json.end;
  this.lost = json.lost;
};
export const thawInventoryArticle = InventoryArticle.thaw;