package org.rpi.player;
   
   import org.apache.log4j.Logger;
   
   /**
    * Needed because some control points when playing a track will send a seekId
    * and a play request, most control points just send a seekId The theory is that
    * we measure the time between the seekId and play request, if it is very short
    * we ignore the play request, because the seekId is enough to play our track. * 
   * 
   * @author phoyle
   * 
   */
  
  public class CommandTracker {
  	
  	private Logger log = Logger.getLogger(this.getClass());
  
  	private long last_time = 0;
  	private String last_command = "";
  
  	public boolean setRequest(String s) {
  		boolean res = true;
  		long now = System.currentTimeMillis();
  		if (last_command.toUpperCase().startsWith("SEEK")) {
  			if (s.equalsIgnoreCase("PLAY")) {	
  				long time_span = now - last_time;
  				if (time_span < 1000) {
  					log.debug("Ignore this request: " + s + " Time since Seek: " + time_span );
  					res = false;
  				}
  			}
  		}
  		last_time = now;
  		last_command=s;
  		return res;
  	}
  
  }