/*
 * JBoss, Home of Professional Open Source.
 * Copyright 2006, Red Hat Middleware LLC, and individual contributors
 * as indicated by the @author tags. See the copyright.txt file in the
 * distribution for a full listing of individual contributors.
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */
package org.jboss.bpm.console.client.search;

import com.google.gwt.user.client.ui.*;
import com.mvc4g.client.Controller;
import com.mvc4g.client.ViewInterface;
import org.gwt.mosaic.ui.client.layout.BoxLayout;
import org.gwt.mosaic.ui.client.layout.BoxLayoutData;
import org.gwt.mosaic.ui.client.layout.MosaicPanel;
import org.jboss.bpm.console.client.ApplicationContext;
import org.jboss.bpm.console.client.model.ProcessDefinitionRef;

import java.util.List;

/**
 * @author Heiko.Braun <heiko.braun@jboss.com>
 */
public class SearchDefinitionView
    extends MosaicPanel implements ViewInterface
{

  private Controller controller;
  private ApplicationContext appContext;
  private SearchDelegate delegate;
  private SuggestBox suggestBox;

  private String selection = null;

  private SearchWindow parent;

  public SearchDefinitionView(ApplicationContext appContext, SearchDelegate delegate)
  {
    super(new BoxLayout(BoxLayout.Orientation.VERTICAL));
    
    this.appContext = appContext;
    this.delegate = delegate;
    this.setPadding(5);

    this.add(new Label("Loading, please wait..."));
  }

  public void setController(Controller controller)
  {
    this.controller = controller;
  }

  private MultiWordSuggestOracle createOracle(List<ProcessDefinitionRef> definitions)
  {
    MultiWordSuggestOracle oracle = new MultiWordSuggestOracle();

    for(ProcessDefinitionRef p : definitions)
    {
      oracle.add(p.getId());
    }

    return oracle;
  }

  public void update(List<ProcessDefinitionRef> definitions)
  {
    this.clear();
    this.selection = null;

    Label desc = new Label("Please enter a process definition ID");
    //desc.setStyleName("bpm-label-header");
    this.add(desc, new BoxLayoutData(BoxLayoutData.FillStyle.HORIZONTAL));

    suggestBox = new SuggestBox(
        createOracle(definitions)
    );

    suggestBox.addEventHandler(
        new SuggestionHandler()
        {
          public void onSuggestionSelected(SuggestionEvent suggestionEvent)
          {
            selection = suggestionEvent.getSelectedSuggestion().getReplacementString();
          }
        }
    );

    this.add(suggestBox);

    Grid g = new Grid(2,2);
    g.setWidget(0,0, new Label("ID: "));
    g.setWidget(0,1, suggestBox);

    Button button = new Button(delegate.getActionName(),
        new ClickListener()
        {
          public void onClick(Widget widget)
          {
            if(selection!=null)
            {
              delegate.handleResult(selection);
              parent.close();
            }
          }
        });

    g.setWidget(1,1, button);
    this.add(g, new BoxLayoutData(BoxLayoutData.FillStyle.HORIZONTAL));

    invalidate();
  }

  void setParent(SearchWindow window)
  {
    this.parent = window;
  }
}