package jalview.ws.jws2;

import jalview.api.AlignCalcWorkerI;
import jalview.bin.Cache;
import jalview.gui.AlignFrame;
import jalview.gui.JvSwingUtils;
import jalview.util.MessageManager;
import jalview.ws.api.ServiceWithParameters;
import jalview.ws.jws2.dm.AAConSettings;
import jalview.ws.jws2.jabaws2.Jws2Instance;
import jalview.ws.params.AutoCalcSetting;
import jalview.ws.uimodel.AlignAnalysisUIText;

import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.List;

import javax.swing.JCheckBoxMenuItem;
import javax.swing.JMenu;
import javax.swing.JMenuItem;
import javax.swing.event.MenuEvent;
import javax.swing.event.MenuListener;

public class Jws2ClientFactory
{
  static boolean registerAAConWSInstance(final JMenu wsmenu,
          final ServiceWithParameters service, final AlignFrame alignFrame)
  {
    final AlignAnalysisUIText aaui = service.getAlignAnalysisUI(); // null
                                                                        // ; //
    // AlignAnalysisUIText.aaConGUI.get(service.serviceType.toString());
    if (aaui == null)
    {
      // not an instantaneous calculation GUI type service
      return false;
    }
    // create the instaneous calculation GUI bits and update state if existing
    // GUI elements already present

    JCheckBoxMenuItem _aaConEnabled = null;
    for (int i = 0; i < wsmenu.getItemCount(); i++)
    {
      JMenuItem item = wsmenu.getItem(i);
      if (item instanceof JCheckBoxMenuItem
              && item.getText().equals(aaui.getAAconToggle()))
      {
        _aaConEnabled = (JCheckBoxMenuItem) item;
      }
    }
    // is there an aaCon worker already present - if so, set it to use the
    // given service handle
    {
      List<AlignCalcWorkerI> aaconClient = alignFrame.getViewport()
              .getCalcManager()
              .getRegisteredWorkersOfClass(aaui.getClient());
      if (aaconClient != null && aaconClient.size() > 0)
      {
        SeqAnnotationServiceCalcWorker worker = (SeqAnnotationServiceCalcWorker) aaconClient
                .get(0);
        if (!worker.service.getHostURL().equals(service.getHostURL()))
        {
          // javax.swing.SwingUtilities.invokeLater(new Runnable()
          {
            // @Override
            // public void run()
            {
              removeCurrentAAConWorkerFor(aaui, alignFrame);
              buildCurrentAAConWorkerFor(aaui, alignFrame, service);
            }
          } // );
        }
      }
    }

    // is there a service already registered ? there shouldn't be if we are
    // being called correctly
    if (_aaConEnabled == null)
    {
      final JCheckBoxMenuItem aaConEnabled = new JCheckBoxMenuItem(
              aaui.getAAconToggle());

      aaConEnabled.setToolTipText(
              JvSwingUtils.wrapTooltip(true, aaui.getAAconToggleTooltip()));
      aaConEnabled.addActionListener(new ActionListener()
      {
        @Override
        public void actionPerformed(ActionEvent arg0)
        {

          List<AlignCalcWorkerI> aaconClient = alignFrame.getViewport()
                  .getCalcManager().getRegisteredWorkersOfClass(
                          SeqAnnotationServiceCalcWorker.class);
          if (aaconClient != null)
          {
            for (AlignCalcWorkerI worker : aaconClient)
            {
              if (((SeqAnnotationServiceCalcWorker) worker).getService()
                      .getClass().equals(aaui.getClient()))
              {
                removeCurrentAAConWorkerFor(aaui, alignFrame);
                return;
              }
            }
          }
          buildCurrentAAConWorkerFor(aaui, alignFrame);
        }

      });
      wsmenu.add(aaConEnabled);
      final JMenuItem modifyParams = new JMenuItem(
              aaui.getAAeditSettings());
      modifyParams.setToolTipText(JvSwingUtils.wrapTooltip(true,
              aaui.getAAeditSettingsTooltip()));
      modifyParams.addActionListener(new ActionListener()
      {

        @Override
        public void actionPerformed(ActionEvent arg0)
        {
          showAAConAnnotationSettingsFor(aaui, alignFrame);
        }
      });
      wsmenu.add(modifyParams);
      wsmenu.addMenuListener(new MenuListener()
      {

        @Override
        public void menuSelected(MenuEvent arg0)
        {
          // TODO: refactor to the implementing class.
          if (alignFrame.getViewport().getAlignment().isNucleotide()
                  ? aaui.isNa()
                  : aaui.isPr())
          {
            aaConEnabled.setEnabled(true);
            modifyParams.setEnabled(true);
          }
          else
          {
            aaConEnabled.setEnabled(false);
            modifyParams.setEnabled(false);
            return;
          }
          List<AlignCalcWorkerI> aaconClient = alignFrame.getViewport()
                  .getCalcManager().getRegisteredWorkersOfClass(
                          SeqAnnotationServiceCalcWorker.class);

          boolean serviceEnabled = false;
          if (aaconClient != null)
          {
            // NB code duplicatino again!
            for (AlignCalcWorkerI _worker : aaconClient)
            {
              SeqAnnotationServiceCalcWorker worker = (SeqAnnotationServiceCalcWorker) _worker;
              // this could be cleaner ?
              if (worker.hasService()
                      && aaui.getClient()
                              .equals(worker.getService().getClass()))
              {
                serviceEnabled = true;
              }
            }
          }
          aaConEnabled.setSelected(serviceEnabled);
        }

        @Override
        public void menuDeselected(MenuEvent arg0)
        {
          // TODO Auto-generated method stub

        }

        @Override
        public void menuCanceled(MenuEvent arg0)
        {
          // TODO Auto-generated method stub

        }
      });

    }
    return true;
  }

  private static void showAAConAnnotationSettingsFor(
          final AlignAnalysisUIText aaui, AlignFrame alignFrame)
  {
    /*
     * preferred settings Whether AACon is automatically recalculated Which
     * AACon server to use What parameters to use
     */
    // could actually do a class search for this too
    AutoCalcSetting fave = alignFrame.getViewport()
            .getCalcIdSettingsFor(aaui.getCalcId());
    if (fave == null)
    {
      fave = createDefaultAAConSettings(aaui);
    }
    new SequenceAnnotationWSClient(fave, alignFrame, true);

  }

  private static void buildCurrentAAConWorkerFor(
          final AlignAnalysisUIText aaui, AlignFrame alignFrame)
  {
    buildCurrentAAConWorkerFor(aaui, alignFrame, null);
  }

  private static void buildCurrentAAConWorkerFor(
          final AlignAnalysisUIText aaui, AlignFrame alignFrame,
          ServiceWithParameters service)
  {
    /*
     * preferred settings Whether AACon is automatically recalculated Which
     * AACon server to use What parameters to use
     */
    AutoCalcSetting fave = alignFrame.getViewport()
            .getCalcIdSettingsFor(aaui.getCalcId());
    if (fave == null)
    {
      fave = createDefaultAAConSettings(aaui, service);
    }
    else
    {
      if (service != null && !fave.getService().getHostURL()
              .equals(service.getHostURL()))
      {
        Cache.log.debug("Changing AACon service to " + service.getHostURL()
                + " from " + fave.getService().getHostURL());
        fave.setService(service);
      }
    }
    new SequenceAnnotationWSClient(fave, alignFrame, false);
  }

  private static AutoCalcSetting createDefaultAAConSettings(
          AlignAnalysisUIText aaui)
  {
    return createDefaultAAConSettings(aaui, null);
  }

  private static AutoCalcSetting createDefaultAAConSettings(
          AlignAnalysisUIText aaui, ServiceWithParameters service)
  {
    if (service != null)
    {
      // if (!service.getServiceType()
      // .equals(compbio.ws.client.Services.AAConWS.toString()))
      // {
      // Cache.log.warn(
      // "Ignoring invalid preferred service for AACon calculations (service
      // type was "
      // + service.getServiceType() + ")");
      // service = null;
      // }
      // else
      {
        // check service is actually in the list of currently avaialable
        // services
        if (!PreferredServiceRegistry.getRegistry().contains(service))
        {
          // it isn't ..
          service = null;
        }
      }
    }
    if (service == null)
    {
      // get the default service for AACon
      service = PreferredServiceRegistry.getRegistry().getPreferredServiceFor(null,
              aaui.getServiceType());
    }
    if (service == null)
    {
      // TODO raise dialog box explaining error, and/or open the JABA
      // preferences menu.
      throw new Error(
              MessageManager.getString("error.no_aacon_service_found"));
    }
    return service instanceof Jws2Instance
            ? new AAConSettings(true, service, null, null)
            : new AutoCalcSetting(service, null, null, true);
  }

  private static void removeCurrentAAConWorkerFor(AlignAnalysisUIText aaui,
          AlignFrame alignFrame)
  {
    alignFrame.getViewport().getCalcManager()
            .removeRegisteredWorkersOfClass(aaui.getClient());
  }
}