export function formatDate(dateStr: string | Date): string {
  const d = typeof dateStr === 'string' ? new Date(dateStr) : dateStr;
  return d.toLocaleDateString('en-US', { month: 'short', day: 'numeric', year: 'numeric' });
}

export function formatDateTime(dateStr: string | Date): string {
  const d = typeof dateStr === 'string' ? new Date(dateStr) : dateStr;
  return d.toLocaleDateString('en-US', { month: 'short', day: 'numeric', year: 'numeric', hour: 'numeric', minute: '2-digit' });
}

export function initials(name: string): string {
  return name
    .split(' ')
    .filter(Boolean)
    .slice(0, 2)
    .map((w) => w[0].toUpperCase())
    .join('');
}

export function vehicleLabel(vehicle: { year: number; make: string; model: string } | null | undefined): string {
  if (!vehicle) return '—';
  return `${vehicle.year} ${vehicle.make} ${vehicle.model}`;
}

export function slugify(str: string): string {
  return str.toLowerCase().replace(/\s+/g, '-').replace(/[^a-z0-9-]/g, '');
}

export function formatMiles(miles: number): string {
  return miles.toLocaleString('en-US') + ' mi';
}