import { ValidationOptions } from '../ValidationOptions';
import { buildMessage, ValidateBy } from '../common/ValidateBy';
import isBICValidator from 'validator/lib/isBIC';

export const IS_BIC = 'isBIC';

/**
 * Check if a string is a BIC (Bank Identification Code) or SWIFT code.
 * If given value is not a string, then it returns false.
 */
export function isBIC(value: unknown): boolean {
  return typeof value === 'string' && isBICValidator(value);
}

/**
 * Check if a string is a BIC (Bank Identification Code) or SWIFT code.
 * If given value is not a string, then it returns false.
 */
export function IsBIC(validationOptions?: ValidationOptions): PropertyDecorator {
  return ValidateBy(
    {
      name: IS_BIC,
      validator: {
        validate: (value, args): boolean => isBIC(value),
        defaultMessage: buildMessage(
          eachPrefix => eachPrefix + '$property must be a BIC or SWIFT code',
          validationOptions
        ),
      },
    },
    validationOptions
  );
}