package uk.ac.vamsas.client.simpleclient;

import java.io.File;
import java.net.MalformedURLException;

import uk.ac.vamsas.client.InvalidSessionUrnException;

/**
 * SessionUrn for simpleclient sessions:
 * simpleclient://{Absolute path to session directory}
 * @author jimp
 *
 */
public class SessionUrn extends uk.ac.vamsas.client.SessionUrn {
  /**
   * a simple client session urn prefix
   */
  public static final String SIMPLECLIENT="simpleclient";
  public static String VAMSASDOCUMENT="vdoc";
  static {
    TYPES.put(SIMPLECLIENT, SessionUrn.class);
    TYPES.put(SessionUrn.VAMSASDOCUMENT, SessionUrn.class);
  }
  
  /**
   * Creates a SessionUrn object from a String.
   * The string must be a string representation of a URI
   * @param urnString
   * @throws InvalidSessionUrnException
   */
  public SessionUrn(String urnString) throws InvalidSessionUrnException
    {
      super();
      this.setURN(urnString);
    }
  
  public SessionUrn(File sessionLocation) throws MalformedURLException {
  // TODO: LATER: implement switch to have vamsas document or simpleclient sessions for same constructor
    super(SIMPLECLIENT, sessionLocation.getAbsoluteFile().toURL());
    //else
      // super(VAMSASDOCUMENT, sessionLocation);
  }
  public SessionUrn(VamsasSession session) throws MalformedURLException {
    super(SIMPLECLIENT, session.sessionDir.getAbsoluteFile().toURL());
  }
  
  
  
  /**
   * @see uk.ac.vamsas.client.SessionUrn#setURN(java.lang.String)
   */
  protected void setURN(String urnString) throws NullPointerException, IllegalArgumentException {
    super.setURN(urnString);
  }

  /**
   * TODO: LATER: think about this again.
   * @return File(urn.getPath())
   */
  public File asFile() {
    String path = urn.getPath();
   
    if ("\\".equals(File.separator))
      {
      //remove last separator at last position if found
        if (path.charAt(path.length() - 1) == '/')path = path.substring(0, path.length() - 1);
        path = path.replaceAll("/", "\\\\");
      }
    int index = path.lastIndexOf(File.separator);
  /*don t remember why
    if (index >-1)
      {//separator found, keep last part of the urn - filename
      path = path.substring(index+1, path.length());
      }
    *yop
    */
    return new File(urn.getPath());
  }
  // TODO: add abstract 'handler' methods for resolving the URN to a particular class
}