export function formatPrice(value: number | null | undefined): string | null {
  if (value === null || value === undefined) return null;
  return new Intl.NumberFormat('tr-TR', {
    style: 'currency',
    currency: 'TRY',
    maximumFractionDigits: 2,
  }).format(value);
}

export function formatDate(iso: string): string {
  return new Intl.DateTimeFormat('tr-TR', {
    dateStyle: 'medium',
    timeStyle: 'short',
  }).format(new Date(iso));
}

/** Telefon numarasini tel:/wa.me baglantisi icin sadelestirir. */
export function telHref(phone: string): string {
  return 'tel:' + phone.replace(/[^\d+]/g, '');
}

export function waHref(phone: string, text = ''): string {
  const digits = phone.replace(/\D/g, '');
  const q = text ? `?text=${encodeURIComponent(text)}` : '';
  return `https://wa.me/${digits}${q}`;
}