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

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

export function generateApiKey(): string {
  const chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789'
  let result = 'nfc_'
  for (let i = 0; i < 32; i++) {
    result += chars.charAt(Math.floor(Math.random() * chars.length))
  }
  return result
}

export function slugify(text: string): string {
  return text
    .toLowerCase()
    .replace(/[^a-z0-9]+/g, '-')
    .replace(/(^-|-$)/g, '')
}

export function formatPhone(phone: string): string {
  const cleaned = phone.replace(/\D/g, '')
  if (cleaned.startsWith('0') && cleaned.length === 11) {
    return '63' + cleaned.slice(1)
  }
  if (cleaned.startsWith('63') && cleaned.length === 12) return cleaned
  if (cleaned.length === 10) return '63' + cleaned
  return cleaned
}