content: /*
   * Copyright 2018-2024 adorsys GmbH & Co KG
   *
   * This program is free software: you can redistribute it and/or modify it
   * under the terms of the GNU Affero General Public License as published
   * by the Free Software Foundation, either version 3 of the License, or (at
   * your option) any later version. This program is distributed in the hope that
   * it will be useful, but WITHOUT ANY WARRANTY; without even the implied
   * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
   * See the GNU Affero General Public License for more details.
   *
   * You should have received a copy of the GNU Affero General Public License
   * along with this program. If not, see https://www.gnu.org/licenses/.
   *
   * This project is also available under a separate commercial license. You can
   * contact us at sales@adorsys.com.
   */
  
  package de.adorsys.psd2.xs2a.web.validator.body;
  
  import de.adorsys.psd2.xs2a.core.domain.TppMessageInformation;
  import de.adorsys.psd2.xs2a.core.error.MessageError;
  import de.adorsys.psd2.xs2a.web.validator.ErrorBuildingService;
  import lombok.RequiredArgsConstructor;
  import org.apache.commons.lang3.StringUtils;
  import org.springframework.stereotype.Component;
  
  import java.util.Currency;
  
  import static de.adorsys.psd2.xs2a.core.error.MessageErrorCode.FORMAT_ERROR_EMPTY_FIELD;
  import static de.adorsys.psd2.xs2a.core.error.MessageErrorCode.FORMAT_ERROR_WRONG_FORMAT_VALUE;
  
  @Component
  @RequiredArgsConstructor
  public class CurrencyValidator {
  
      private static final String CURRENCY_STRING =  "currency";
      private final ErrorBuildingService errorBuildingService;
  
      public void validateCurrency(String currency, MessageError messageError) {
          if (StringUtils.isEmpty(currency)) {
              errorBuildingService.enrichMessageError(messageError, TppMessageInformation.of(FORMAT_ERROR_EMPTY_FIELD, CURRENCY_STRING));
          } else if (!isValidCurrency(currency)) {
              errorBuildingService.enrichMessageError(messageError, TppMessageInformation.of(FORMAT_ERROR_WRONG_FORMAT_VALUE, CURRENCY_STRING));
          }
      }
  
      private boolean isValidCurrency(String currency) {
          try {
              Currency.getInstance(currency);
          } catch (IllegalArgumentException e) {
              return false;
          }
          return true;
      }
  }
  