/**
 * 
 */
package at.knowcenter.wag.egov.egiz.sig.connectors.bku;

import java.io.Serializable;
import java.security.cert.X509Certificate;
import java.util.Arrays;
import java.util.HashMap;
import java.util.Map;
import java.util.Properties;

import org.apache.tools.ant.taskdefs.Length;

import at.gv.egiz.pdfas.algorithmSuite.AlgorithmSuiteUtil;
import at.knowcenter.wag.egov.egiz.sig.SignatureTypes;
import at.knowcenter.wag.egov.egiz.sig.signatureobject.AdditionalSignatureInformation;
import at.knowcenter.wag.egov.egiz.sig.signatureobject.AlgorithmSignatureInformation;
import at.knowcenter.wag.egov.egiz.sig.signatureobject.ConnectorSignatureInformation;
import at.knowcenter.wag.egov.egiz.sig.signatureobject.MandatorySignatureInformation;

/**
 * @author wprinz
 *
 */
public class SignSignatureObject implements Serializable, MandatorySignatureInformation, ConnectorSignatureInformation, AlgorithmSignatureInformation, AdditionalSignatureInformation
{
  /**
   * SVUID.
   */
  private static final long serialVersionUID = -2689261480444802213L;
  
  public String date = null;
  public String issuer = null;
  public String signatureValue = null;
  
  public String id = null;
  public String kz = null;
  
  public String sigAlgorithm;
  
  /**
   * This is used to transport the response properties to the Detached signator.
   */
  public Properties response_properties = null;
  
  /**
   * The X509Certificate.
   * 
   * <p>
   * This also provides the serial number and name.
   * </p>
   */
  public X509Certificate x509Certificate = null;

  /**
   * @see at.knowcenter.wag.egov.egiz.sig.signatureobject.MandatorySignatureInformation#getDate()
   */
  public String getDate()
  {
    return this.date;
  }

  /**
   * @see at.knowcenter.wag.egov.egiz.sig.signatureobject.MandatorySignatureInformation#getIssuer()
   */
  public String getIssuer()
  {
    return this.issuer;
  }

  /**
   * @see at.knowcenter.wag.egov.egiz.sig.signatureobject.MandatorySignatureInformation#getSerialNumber()
   */
  public String getSerialNumber()
  {
    return this.x509Certificate.getSerialNumber().toString();
  }

  /**
   * @see at.knowcenter.wag.egov.egiz.sig.signatureobject.MandatorySignatureInformation#getSignatureValue()
   */
  public String getSignatureValue()
  {
    return this.signatureValue;
  }

  /**
   * @see at.knowcenter.wag.egov.egiz.sig.signatureobject.ConnectorSignatureInformation#getSigID()
   */
  public String getSigID()
  {
    return this.id;
  }

  /**
   * @see at.knowcenter.wag.egov.egiz.sig.signatureobject.AlgorithmSignatureInformation#getSigKZ()
   */
  public String getSigKZ()
  {
    return this.kz;
  }

  /**
   * @see at.knowcenter.wag.egov.egiz.sig.signatureobject.AdditionalSignatureInformation#getName()
   */
  public String getName()
  {
    return this.x509Certificate.getSubjectDN().getName();
  }

  /**
   * @see at.knowcenter.wag.egov.egiz.sig.signatureobject.AdditionalSignatureInformation#getX509Certificate()
   */
  public X509Certificate getX509Certificate()
  {
    return this.x509Certificate;
  }
  
  public String getSigAlgorithm() {
     return this.sigAlgorithm;
  }
  
  public String retrieveStringValue(String sigKey)
  {
    // mandatory
    if (sigKey.equals(SignatureTypes.SIG_DATE))
    {
      return getDate();
    }
    if (sigKey.equals(SignatureTypes.SIG_VALUE))
    {
      return getSignatureValue();
    }
    if (sigKey.equals(SignatureTypes.SIG_ISSUER))
    {
      return getIssuer();
    }
    if (sigKey.equals(SignatureTypes.SIG_NUMBER))
    {
      return getSerialNumber();
    }
    
    // connector
    if (sigKey.equals(SignatureTypes.SIG_ID))
    {
      return getSigID();
    }
    
    // algorithm
    if (sigKey.equals(SignatureTypes.SIG_KZ))
    {
      return getSigKZ(); 
    }

    // additional
    if (sigKey.equals(SignatureTypes.SIG_NAME))
    {
      return getName();
    }
    
    if (sigKey.equals(SignatureTypes.SIG_ALG)) {
       return getSigAlgorithm();
    }
    
    throw new RuntimeException("The key '" + sigKey + "' is not a recognized SignatorObject member."); //$NON-NLS-1$ //$NON-NLS-2$
  }
  
//  public String certSubjectDNPart(String key) {
//     String val = null;
//     if (subjectDNMap == null) {
//     if (this.getX509Certificate() != null) {
//        val = extractDNPart(key, this.getX509Certificate().getSubjectX500Principal().getName());
//     }
//     return val;
//  }
//  
//  public String certIssuerDNPart(String key) {
//     String val = null;
//     if (this.getX509Certificate() != null) {
//        val = extractDNPart(key, this.getX509Certificate().getIssuerX500Principal().getName());
//     }
//     return val;
//  }
  
   public String certSubjectDNPart(String key) {      
      if (this.subjectDNMap.size() == 0) {
         if (this.getX509Certificate() != null) {         
            fillDNMap(this.getX509Certificate().getSubjectX500Principal().getName(), this.subjectDNMap);
         }
      }
      return this.subjectDNMap.get(key).toString();
   }
   

   public String certIssuerDNPart(String key) {      
      if (this.issuerDNMap.size() == 0) {
         if (this.getX509Certificate() != null) {         
            fillDNMap(this.getX509Certificate().getIssuerX500Principal().getName(), this.issuerDNMap);
         }
      }
      return this.issuerDNMap.get(key).toString();
   }
   
   private Map subjectDNMap = new HashMap();
   private Map issuerDNMap = new HashMap();
   
   private void fillDNMap(String dn, Map dnMap) {

      String[] arr = dn.split("\\s*(,|;)\\s*");
      for (int i = 0; i < arr.length; i++) {
         String[] entry = arr[i].split("\\s*(=)\\s*");
         dnMap.put(entry[0], entry[1]);
      }
   }
   

}