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.service.validator.ais.account.common;
  
  import de.adorsys.psd2.core.data.AccountAccess;
  import de.adorsys.psd2.core.data.ais.AisConsent;
  import de.adorsys.psd2.xs2a.core.error.ErrorType;
  import de.adorsys.psd2.xs2a.core.profile.AccountReference;
  import de.adorsys.psd2.xs2a.core.service.validator.ValidationResult;
  import org.apache.commons.collections4.CollectionUtils;
  import org.springframework.stereotype.Component;
  
  import java.util.List;
  import java.util.stream.Collectors;
  
  import static de.adorsys.psd2.xs2a.core.error.MessageErrorCode.CONSENT_INVALID;
  
  @Component
  public class AccountAccessMultipleAccountsValidator {
  
      public ValidationResult validate(AisConsent aisConsent, boolean withBalance) {
          if (withBalance && aisConsent.isConsentForDedicatedAccounts()) {
              AccountAccess access = aisConsent.getAccess();
              return validateAccountReferenceSize(access.getAccounts(), access.getBalances())
                         ? ValidationResult.invalid(ErrorType.AIS_401, CONSENT_INVALID)
                         : ValidationResult.valid();
          }
  
          return ValidationResult.valid();
      }
  
      private boolean validateAccountReferenceSize(List<AccountReference> accounts, List<AccountReference> balances) {
          // This filtering allows to skip all card accounts (with masked PAN or PAN inside in case of ) and allows the further flow
          // to be finished.
          List<AccountReference> filteredAccountReferences = accounts.stream()
                                                                 .filter(AccountReference::isNotCardAccount)
                                                                 .collect(Collectors.toList());
  
          return CollectionUtils.isNotEmpty(filteredAccountReferences)
                     && CollectionUtils.isNotEmpty(balances)
                     && filteredAccountReferences.size() > balances.size();
      }
  }
  