import { Transform } from "class-transformer";

export const TransformDate = ()=> {
  const toPlain = Transform(({ value }) => (value == undefined || !(typeof value.toISOString === "function") ? undefined : (value as Date).toISOString()),  {
    toPlainOnly: true,
  });

  // TODO we should through errors when transforming unanticipated values
  const toClass = Transform(({value}) => value != undefined && typeof value === "string" ? new Date(value) : undefined, {
    toClassOnly: true,
  });

  return function (target: any, key: string) {
    toPlain(target, key);
    toClass(target, key);
  };
}