export function formatContextWindow(size?: number): string {
  if (!size) return '-';

  // For M: prefer decimal (use decimal for exact thousands)
  if (size >= 1000000) {
    if (size % 1000000 === 0) {
      return `${size / 1000000}M`;
    }
    return `${(size / 1000000).toFixed(1)}M`;
  }

  // For K: prefer decimal if divisible by 1000, otherwise use binary
  if (size >= 1000) {
    if (size % 1000 === 0) {
      return `${size / 1000}K`;
    }
    return `${Math.floor(size / 1024)}K`;
  }

  return size.toString();
}

export function getProviderTypeLabel(type: string, t: (key: string) => string): string {
  const translationKey = `settings.providerTypes.${type}`;
  const translated = t(translationKey);
  // If translation exists (not equal to key), use it; otherwise fallback to type
  return translated !== translationKey ? translated : type;
}