import { format, newDate } from "date-fns-jalali";
import { faIR } from "date-fns-jalali/locale";

/**
 * Format a Gregorian date (Date or ISO string) to Shamsi (Jalali) Persian string.
 * Example: "۱۴ بهمن ۱۴۰۴"
 */
export function formatDateShamsi(
  date: Date | string,
  formatStr: string = "d MMMM yyyy"
): string {
  const d = typeof date === "string" ? new Date(date) : date;
  if (Number.isNaN(d.getTime())) return "";
  return format(d, formatStr, { locale: faIR });
}