import { ValidationOptions } from '../ValidationOptions';
import { buildMessage, ValidateBy } from '../common/ValidateBy';
import isRFC3339Validator from 'validator/lib/isRFC3339';

export const IS_RFC_3339 = 'isRFC3339';

/**
 * Check if the string is a valid RFC 3339 date.
 * If given value is not a string, then it returns false.
 */
export function isRFC3339(value: unknown): boolean {
  return typeof value === 'string' && isRFC3339Validator(value);
}

/**
 * Check if the string is a valid RFC 3339 date.
 * If given value is not a string, then it returns false.
 */
export function IsRFC3339(validationOptions?: ValidationOptions): PropertyDecorator {
  return ValidateBy(
    {
      name: IS_RFC_3339,
      validator: {
        validate: (value, args): boolean => isRFC3339(value),
        defaultMessage: buildMessage(eachPrefix => eachPrefix + '$property must be RFC 3339 date', validationOptions),
      },
    },
    validationOptions
  );
}