export const toPersian = (n: number | string | undefined | null) => {
  if (n === undefined || n === null) return "";
  return n.toString().replace(/\d/g, d => '۰۱۲۳۴۵۶۷۸۹'[parseInt(d)]);
};

export const toEnglishDigits = (str: string) => {
  if (!str) return "";
  return str.replace(/[۰-۹]/g, d => '۰۱۲۳۴۵۶۷۸۹'.indexOf(d).toString());
};

export function cn(...classes: (string | boolean | undefined)[]) {
  return classes.filter(Boolean).join(" ");
}