export const formatCurrency = (
  amount: number | undefined,
  currency: string = '₹',
): string => {
  return `${currency}${amount?.toLocaleString('en-IN', {
    minimumFractionDigits: 0,
    maximumFractionDigits: 2,
  })}`;
};

export const formatDistance = (km: number): string => {
  if (km < 1) return `${Math.round(km * 1000)} m`;
  return `${km?.toFixed(1)} km`;
};

export const formatDuration = (seconds: number): string => {
  if (seconds < 60) return `${seconds} sec`;
  const mins = Math.floor(seconds / 60);
  if (mins < 60) return `${mins} min`;
  const hrs = Math.floor(mins / 60);
  const remMins = mins % 60;
  return remMins > 0 ? `${hrs}h ${remMins}m` : `${hrs}h`;
};

export const formatDate = (isoString: string): string => {
  const date = new Date(isoString);
  return date.toLocaleString('en-IN', {
    day: '2-digit',
    month: 'short',
    hour: '2-digit',
    minute: '2-digit',
    hour12: true,
  });
};

export const formatPhoneNumber = (phone: string): string => {
  const cleaned = phone.replace(/\D/g, '');
  if (cleaned.length === 10) {
    return `+91 ${cleaned.slice(0, 5)} ${cleaned.slice(5)}`;
  }
  return phone;
};

export const maskPhone = (phone: string): string => {
  const cleaned = phone.replace(/\D/g, '').slice(-10);
  return `+91 ${cleaned.slice(0, 5)} XXXXX`;
};

export const formatOrdinal = (n: number): string => {
  const s = ['th', 'st', 'nd', 'rd'];
  const v = n % 100;
  return n + (s[(v - 20) % 10] || s[v] || s[0]);
};