/**
 * Allowed payment cryptocurrencies
 * 
 * Edit this list to add or remove supported payment currencies.
 * All currencies should be in lowercase.
 */
export const ALLOWED_PAYMENT_CURRENCIES = [
  'btc',
  'eth',
  'sol',
  'xrp',
  'bnbbsc',
  'usdterc20',
] as const

/**
 * Type for allowed payment currency
 */
export type AllowedPaymentCurrency = typeof ALLOWED_PAYMENT_CURRENCIES[number]

/**
 * Check if a currency is in the allowed list
 */
export function isAllowedCurrency(currency: string): boolean {
  return ALLOWED_PAYMENT_CURRENCIES.includes(currency.toLowerCase() as AllowedPaymentCurrency)
}