import { clsx, type ClassValue } from 'clsx';
import { twMerge } from 'tailwind-merge';

export function cn(...inputs: ClassValue[]) {
  return twMerge(clsx(inputs));
}

/** Format bytes into a human-readable string (B / KB / MB / GB / TB). */
export function formatBytes(bytes: number): string {
  if (bytes === 0) return '0 B';
  const k = 1024;
  const sizes = ['B', 'KB', 'MB', 'GB', 'TB'];
  const i = Math.floor(Math.log(bytes) / Math.log(k));
  return `${(bytes / Math.pow(k, i)).toFixed(2)} ${sizes[i]}`;
}

/** Tailwind classes for a service/deployment status badge. */
export function getStatusColor(status: string): string {
  switch (status) {
    case 'up':
    case 'success':
      return 'text-green-600 bg-green-50 border-green-200';
    case 'down':
    case 'failed':
      return 'text-red-600 bg-red-50 border-red-200';
    case 'degraded':
    case 'running':
      return 'text-yellow-600 bg-yellow-50 border-yellow-200';
    default:
      return 'text-gray-600 bg-gray-50 border-gray-200';
  }
}