/*
    * Copyright 2004-2005 Andreas Andreou
    *
    * Licensed under the Apache License, Version 2.0 (the "License");
    * you may not use this file except in compliance with the License.
    * You may obtain a copy of the License at
    *
    *  http://www.apache.org/licenses/LICENSE-2.0
    *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  package net.sf.tapfx.components.outlookbar;
  
  import org.apache.commons.logging.Log;
  import org.apache.commons.logging.LogFactory;
  import org.apache.tapestry.*;
  import org.apache.tapestry.engine.DirectServiceParameter;
  import org.apache.tapestry.engine.IEngineService;
  import org.apache.tapestry.engine.ILink;
  
  import net.sf.tapfx.components.TapFXBaseComponent;
  
  
  /***
   * This provides many services and renders
   * an icon as well as its label.
   * You might imagine this where the Mail,
   * or Calendar icons in Outlook are.
   * <p/>
   * Yuck.. I know this could be prettier.
   *
   * @author Joshua Long (josh@joshlong.com)
   * @author andyhot
   * @version $Id: OutlookLink.java,v 1.2 2005/11/04 23:38:08 andyhot Exp $
   */
  public abstract class OutlookLink extends TapFXBaseComponent
  implements IDirect 
  {
      private static final Log log =
              LogFactory.getLog(OutlookPane.class);
  
      private String prefix;
  
      public static final String SELECTED_OUTLOOK_LINK_ID =
              "SELECTED_OUTLOOK_LINK_ID_";
  
  
      public abstract String getPageName();
      public abstract void setPageName(String page);
  
      public abstract String getDirectUrl();
      public abstract void setDirectUrl(String directUrl);
  
      public abstract IActionListener getListener();
      public abstract void setListener(IActionListener directLink);
  
      public abstract IAsset getImage();
      public abstract void setImage(IAsset asset);
  
      public abstract String getImageUrl();
      public abstract void setImageUrl(String imageUrl);
      
      public abstract IEngineService getDirectService();        
  
      public abstract Object getParameters();
      public abstract void setParameters(Object parameters);
  
      public abstract String getSelectedId();
  
      public abstract void setSelectedId(String selectedId);
  
      public abstract boolean isRestart();
  
      public abstract void setRestart(boolean restart);
  
      public boolean isStateful()
      {
          return false;
      }
  
      public String getPrefix()
      {
          return prefix;
      }
  
      public void trigger(IRequestCycle cycle)
      {
          IActionListener listener = getListener();
          Object[] params = cycle.getListenerParameters();
          for (int i = 0; i < params.length; i++)
          {
              log.debug("Inside trigger(), the param is " + params[i]);
          }
          if (listener == null)
          {
             throw Tapestry.createRequiredParameterException(this,
                     "directLink");
         }
         listener.actionTriggered(this, cycle);
         if (OutlookBar.getOutlookBar(cycle).getForceSession())
         {
         	OutlookBar.getOutlookBar(cycle).setSelection( (String) params[0] );
         }
     }
 
     public void gotoPageAction(IRequestCycle cycle)
     {
         String pageName = getPageName();
 
         if (OutlookBar.getOutlookBar(cycle).getForceSession())
         {
             String id = OutlookBar.getOutlookBarAggregateId(cycle);
             log.debug("[Storing selection] page=" + pageName + ", id=" + id);
         	OutlookBar.getOutlookBar(cycle).setSelection(id);
         }
 
         if (pageName != null)
         {
             log.debug("Forwarding to page: " + pageName);
             IPage page = cycle.getPage(pageName);
             cycle.activate(page);
         }
         else
         {
             log.debug("Invoking listener...");
             Object params = getParameters();
             Object[] paramArray = null;
             if (params instanceof Object[])
             {
             	paramArray = (Object[]) params;
             }
             else if (params != null)
             {
             	paramArray = new Object[] { params };
             }
             cycle.setListenerParameters(paramArray);
             getListener().actionTriggered(this, cycle);
         }
     }
 
     protected void setupComponent(IRequestCycle cycle)
     {
         if (cycle.isRewinding())
         {
             return;
         }
 
         prefix = OutlookBar.getOutlookBar(cycle).getPrefix();
 
         IAsset img = getImage();
         String url = img.buildURL(cycle);
         setImageUrl(url);
 
         String id = OutlookBar.getOutlookBarAggregateId(cycle);
         setSelectedId(id);
         /* log("the id in link_setup() is " + id); */
         Object[] params = {id};
         DirectServiceParameter directParams = new DirectServiceParameter(this, params);
         ILink link = getDirectService().getLink(cycle, false, directParams);
         setDirectUrl(link.getURL());
 
         /***
          *   service =
          cycle.getEngine().getService(Tapestry.ACTION_SERVICE );
          service.getLink(cycle, this, new Object[]{});
 
          /// Object id = cycle.getAttribute(OutlookBar.AGGREGATE_ID);
          //  String pn = getPageName();
          //  log("the page name for this link is: " + pn + "; and the
          selectedId is " + id);
          //
          cycle.getRequestContext().createSession().setAttribute(OutlookLink.SELECTED_OUTLOOK_LINK_ID, id);
          */
         if (isRestart())
             log.debug("This is a restart link");
         /*     if(getPageName() == null && getListener() == null)
                  setRestart(true) ;*/
     }
 
 }