package at.asitplus.eidas.specific.modules.auth.idaustria.utils;

import javax.annotation.Nullable;

import org.apache.commons.lang3.StringUtils;

import at.asitplus.eidas.specific.modules.auth.idaustria.IdAustriaAuthConstants;
import at.gv.egiz.eaaf.core.api.idp.IConfiguration;
import at.gv.egiz.eaaf.core.api.idp.ISpConfiguration;

public class Utils {

  /**
   * Get the EntityId of the ID Austria system that
   * should be used in this process.
   *
   * @param spConfiguration Service-Provider configuration that can include
   *    {@linkplain IdAustriaAuthConstants.CONFIG_PROPS_APPSPECIFIC_IDAUSTRIA_NODE_URL}
   * @param authConfig Basic application configuration that include
   *    {@linkplain IdAustriaAuthConstants.CONFIG_PROPS_IDAUSTRIA_ENTITYID}
   * @return EntityId, or <code>null</code> if no EntityId was found in configuration
   */
  @Nullable
  public static String getIdAustriaEntityId(
      ISpConfiguration spConfiguration, IConfiguration authConfig) {
    // load from service-provider configuration
    String msNodeEntityID = spConfiguration.getConfigurationValue(
        IdAustriaAuthConstants.CONFIG_PROPS_APPSPECIFIC_IDAUSTRIA_NODE_URL);

    if (StringUtils.isEmpty(msNodeEntityID)) {
      msNodeEntityID = authConfig.getBasicConfiguration(
          IdAustriaAuthConstants.CONFIG_PROPS_IDAUSTRIA_ENTITYID);

    }

    return msNodeEntityID;
  }
  
  private Utils() {
    //hide constructor of private class
    
  }
  
}