/**
   * This method is used to register an user in the system. The account will be locked if the
   * Authentication.Policy.Account.Lock.On.Creation is set to true. Else user will be able to login
   * after registration.
   *
   * @param userName
   * @param password
   * @param claims
   * @param profileName
   * @param tenantDomain
   * @return
   * @throws IdentityMgtServiceException
   */
  public VerificationBean registerUser(
      String userName,
      String password,
      UserIdentityClaimDTO[] claims,
      String profileName,
      String tenantDomain)
      throws IdentityMgtServiceException {

    VerificationBean vBean = new VerificationBean();

    org.wso2.carbon.user.core.UserStoreManager userStoreManager = null;
    Permission permission = null;

    if (!IdentityMgtConfig.getInstance().isSaasEnabled()) {
      String loggedInTenant =
          PrivilegedCarbonContext.getThreadLocalCarbonContext().getTenantDomain();
      if (tenantDomain != null && !tenantDomain.isEmpty() && !loggedInTenant.equals(tenantDomain)) {
        String msg = "Trying to create users in unauthorized tenant space";
        log.error(msg);
        throw new IdentityMgtServiceException(msg);
      }
      if (tenantDomain == null || tenantDomain.isEmpty()) {
        tenantDomain = loggedInTenant;
      }
    }

    RealmService realmService = IdentityMgtServiceComponent.getRealmService();
    int tenantId;

    try {

      tenantId = Utils.getTenantId(tenantDomain);
      if (realmService.getTenantUserRealm(tenantId) != null) {
        userStoreManager =
            (org.wso2.carbon.user.core.UserStoreManager)
                realmService.getTenantUserRealm(tenantId).getUserStoreManager();
      }

    } catch (Exception e) {
      vBean =
          handleError(
              VerificationBean.ERROR_CODE_UNEXPECTED
                  + " Error retrieving the user store manager for the tenant",
              e);
      return vBean;
    }

    try {

      if (userStoreManager == null) {
        vBean = new VerificationBean();
        vBean.setVerified(false);
        vBean.setError(
            VerificationBean.ERROR_CODE_UNEXPECTED
                + " Error retrieving the user store manager for the tenant");
        return vBean;
      }

      Map<String, String> claimsMap = new HashMap<String, String>();
      for (UserIdentityClaimDTO userIdentityClaimDTO : claims) {
        claimsMap.put(userIdentityClaimDTO.getClaimUri(), userIdentityClaimDTO.getClaimValue());
      }

      userStoreManager.addUser(userName, password, null, claimsMap, profileName);

      String identityRoleName =
          UserCoreConstants.INTERNAL_DOMAIN
              + CarbonConstants.DOMAIN_SEPARATOR
              + IdentityConstants.IDENTITY_DEFAULT_ROLE;

      if (!userStoreManager.isExistingRole(identityRoleName, false)) {
        permission = new Permission("/permission/admin/login", UserMgtConstants.EXECUTE_ACTION);
        userStoreManager.addRole(
            identityRoleName, new String[] {userName}, new Permission[] {permission}, false);
      } else {
        userStoreManager.updateUserListOfRole(
            identityRoleName, new String[] {}, new String[] {userName});
      }

      IdentityEventListener identityEventListener =
          IdentityUtil.readEventListenerProperty(
              UserOperationEventListener.class.getName(), IdentityMgtEventListener.class.getName());

      boolean isListenerEnable = true;

      if (identityEventListener != null) {
        if (StringUtils.isNotBlank(identityEventListener.getEnable())) {
          isListenerEnable = Boolean.parseBoolean(identityEventListener.getEnable());
        }
      }

      IdentityMgtConfig config = IdentityMgtConfig.getInstance();

      if (isListenerEnable && config.isAuthPolicyAccountLockOnCreation()) {
        UserDTO userDTO = new UserDTO(userName);
        userDTO.setTenantId(tenantId);

        UserRecoveryDTO dto = new UserRecoveryDTO(userDTO);
        dto.setNotification(IdentityMgtConstants.Notification.ACCOUNT_CONFORM);
        dto.setNotificationType("EMAIL");

        RecoveryProcessor processor = IdentityMgtServiceComponent.getRecoveryProcessor();
        vBean = processor.updateConfirmationCode(1, userName, tenantId);

        dto.setConfirmationCode(vBean.getKey());
        NotificationDataDTO notificationDto = processor.notifyWithEmail(dto);
        vBean.setVerified(notificationDto.isNotificationSent());

        //				Send email data only if not internally managed.
        if (!(IdentityMgtConfig.getInstance().isNotificationInternallyManaged())) {
          vBean.setNotificationData(notificationDto);
        }

      } else {
        vBean.setVerified(true);
      }
    } catch (UserStoreException | IdentityException e) {
      UserIdentityManagementUtil.getCustomErrorMessages(e, userName);
      // Rollback if user exists
      try {
        if (userStoreManager.isExistingUser(userName)) {
          userStoreManager.deleteUser(userName);
        }
      } catch (org.wso2.carbon.user.core.UserStoreException e1) {
        UserIdentityManagementUtil.getCustomErrorMessages(e1, userName);
      }

      return vBean;
    }

    return vBean;
  }
  /**
   * Verifies the user against the provided claims and captcha information.
   *
   * @param claims
   * @param captcha
   * @param tenantDomain
   * @return
   * @throws IdentityMgtServiceException
   */
  public VerificationBean verifyAccount(
      UserIdentityClaimDTO[] claims, CaptchaInfoBean captcha, String tenantDomain)
      throws IdentityMgtServiceException {

    VerificationBean vBean = new VerificationBean();

    if (IdentityMgtConfig.getInstance().isCaptchaVerificationInternallyManaged()) {
      try {
        CaptchaUtil.processCaptchaInfoBean(captcha);
      } catch (Exception e) {
        vBean =
            handleError(
                VerificationBean.ERROR_CODE_INVALID_CAPTCHA + " Error processing captcha", e);
        return vBean;
      }
    }

    if (!IdentityMgtConfig.getInstance().isSaasEnabled()) {
      String loggedInTenant =
          PrivilegedCarbonContext.getThreadLocalCarbonContext().getTenantDomain();
      if (tenantDomain != null && !tenantDomain.isEmpty() && !loggedInTenant.equals(tenantDomain)) {
        String msg = "Trying to verify account unauthorized tenant space";
        log.error(msg);
        throw new IdentityMgtServiceException(msg);
      }
      if (tenantDomain == null || tenantDomain.isEmpty()) {
        tenantDomain = loggedInTenant;
      }
    }

    try {
      int tenantId = Utils.getTenantId(tenantDomain);
      String userName = UserIdentityManagementUtil.getUsernameByClaims(claims, tenantId);

      if (userName != null) {
        UserDTO userDTO = new UserDTO(userName);
        userDTO.setTenantId(tenantId);

        UserRecoveryDTO dto = new UserRecoveryDTO(userDTO);
        dto.setNotification(IdentityMgtConstants.Notification.ACCOUNT_ID_RECOVERY);
        dto.setNotificationType("EMAIL");

        RecoveryProcessor processor = IdentityMgtServiceComponent.getRecoveryProcessor();
        NotificationDataDTO notificationDto = processor.notifyWithEmail(dto);

        vBean.setVerified(notificationDto.isNotificationSent());

        //				Send email data only if not internally managed.
        if (!(IdentityMgtConfig.getInstance().isNotificationInternallyManaged())) {
          vBean.setNotificationData(notificationDto);
        }

      } else {
        vBean.setError("User not found");
        vBean.setVerified(false);
      }
    } catch (Exception e) {
      vBean =
          handleError(
              VerificationBean.ERROR_CODE_INVALID_USER + " Error verifying user account", e);
      return vBean;
    }

    return vBean;
  }