package jalview.ws2.gui;

import java.util.List;

import jalview.gui.AlignFrame;
import jalview.gui.AlignmentPanel;
import jalview.gui.IProgressIndicator;
import jalview.gui.IProgressIndicatorHandler;
import jalview.ws2.actions.annotation.AnnotationAction;
import jalview.ws2.actions.annotation.AnnotationResult;
import jalview.ws2.actions.api.JobI;
import jalview.ws2.actions.api.TaskEventListener;
import jalview.ws2.actions.api.TaskI;
import jalview.ws2.api.JobStatus;

public class AnnotationServiceGuiHandler
    implements TaskEventListener<AnnotationResult>
{
  private final AlignFrame alignFrame;

  private final AlignmentPanel alignPanel;

  private final IProgressIndicator progressIndicator;

  private final AnnotationAction action;

  public AnnotationServiceGuiHandler(AnnotationAction action, AlignFrame frame)
  {
    this.alignFrame = frame;
    this.alignPanel = frame.alignPanel;
    this.progressIndicator = frame;
    this.action = action;
  }

  @Override
  public void taskStarted(TaskI<AnnotationResult> source, List<? extends JobI> subJobs)
  {
    progressIndicator.registerHandler(source.getUid(),
        new IProgressIndicatorHandler()
        {
          @Override
          public boolean cancelActivity(long id)
          {
            source.cancel();
            return true;
          }

          @Override
          public boolean canCancel()
          {
            return true;
          }
        });
  }

  @Override
  public void taskStatusChanged(TaskI<AnnotationResult> source, JobStatus status)
  {
    switch (status)
    {
    case INVALID:
    case COMPLETED:
    case CANCELLED:
    case FAILED:
    case SERVER_ERROR:
      progressIndicator.removeProgressBar(source.getUid());
      break;
    case READY:
    case SUBMITTED:
    case QUEUED:
    case RUNNING:
    case UNKNOWN:
      progressIndicator.addProgressBar(source.getUid(), action.getFullName());
      break;
    }
  }

  @Override
  public void taskCompleted(TaskI<AnnotationResult> source, AnnotationResult result)
  {
    if (result == null)
      return;
    if (result.getTransferFeatures() && alignFrame.alignPanel == alignPanel)
    {
      alignFrame.getViewport().setShowSequenceFeatures(true);
      alignFrame.setMenusForViewport();
    }
    alignPanel.adjustAnnotationHeight();
  }

  @Override
  public void taskException(TaskI<AnnotationResult> source, Exception e)
  {

  }

  @Override
  public void subJobStatusChanged(TaskI<AnnotationResult> source, JobI job, JobStatus status)
  {

  }

  @Override
  public void subJobLogChanged(TaskI<AnnotationResult> source, JobI job, String log)
  {

  }

  @Override
  public void subJobErrorLogChanged(TaskI<AnnotationResult> source, JobI job, String log)
  {

  }
}