package jalview.ws2.gui;

import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;

import jalview.gui.IProgressIndicator;
import jalview.ws2.WSJob;
import jalview.ws2.WSJobStatus;

/**
 * Monitors annotation jobs' status and updates progress indicators accordingly.
 * 
 * @author mmwarowny
 *
 */
public class ProgressBarUpdater implements PropertyChangeListener
{
  private IProgressIndicator progressIndicator;

  public ProgressBarUpdater(IProgressIndicator progressIndicator)
  {
    this.progressIndicator = progressIndicator;
  }

  @Override
  public void propertyChange(PropertyChangeEvent evt)
  {
    switch (evt.getPropertyName())
    {
    case "status":
      statusChanged(evt);
      break;
    }
  }

  private void statusChanged(PropertyChangeEvent evt)
  {
    var job = (WSJob) evt.getSource();
    var oldStatus = (WSJobStatus) evt.getOldValue();
    var newStatus = (WSJobStatus) evt.getNewValue();
    if (!oldStatus.isSubmitted() && newStatus.isSubmitted())
    {
      progressIndicator.setProgressBar(job.getServiceName(), job.getUid());
    }
    if (newStatus.isDone() || newStatus.isCancelled())
    {
      progressIndicator.removeProgressBar(job.getUid());
    }
  }
}