export function isValidSpecValue(value: string) {
  if (!value) {
    return;
  }
  const notValidValues = new Set(["X", "-", "U", "가격 미확인"]);
  return value.length > 0 && !notValidValues.has(value);
}

export const validateSpecValue = (value: string) => {
  const isValid = isValidSpecValue(value);
  return isValid ? value : "";
};

export function getPriceString(price: string) {
  const endText = price.slice(-2, price.length);
  if (endText === "만원") return price;
  return price + "만원";
}

export function numberWithCommas(num: number): string {
  return num.toString().replace(/\B(?=(\d{3})+(?!\d))/g, ",");
}

export function getDiscountPercentage({
  fixedPrice,
  goodsPrice,
}: {
  fixedPrice: number;
  goodsPrice: number;
}) {
  if (fixedPrice > goodsPrice) {
    return Math.round(((fixedPrice - goodsPrice) / fixedPrice) * 100);
  }
  return 0;
}