/***************************************************************************
 * Copyright (C) 2003-2009 eXo Platform SAS.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Affero General Public License
 * as published by the Free Software Foundation; either version 3
 * of the License, or (at your option) any later version.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, see<http://www.gnu.org/licenses/>.
 ***************************************************************************/
package org.exoplatform.faq.webui.viewer;

import java.util.ArrayList;
import java.util.List;

import org.exoplatform.container.PortalContainer;
import org.exoplatform.faq.rendering.RenderHelper;
import org.exoplatform.faq.service.CategoryInfo;
import org.exoplatform.faq.service.FAQService;
import org.exoplatform.faq.service.Question;
import org.exoplatform.faq.service.Utils;
import org.exoplatform.faq.webui.FAQUtils;
import org.exoplatform.resolver.ResourceResolver;
import org.exoplatform.services.log.ExoLogger;
import org.exoplatform.services.log.Log;
import org.exoplatform.webui.application.WebuiRequestContext;
import org.exoplatform.webui.config.annotation.ComponentConfig;
import org.exoplatform.webui.config.annotation.EventConfig;
import org.exoplatform.webui.core.UIContainer;
import org.exoplatform.webui.event.Event;
import org.exoplatform.webui.event.EventListener;

/**
 * Created by The eXo Platform SAS 
 * Author : Vu Duy Tu 
 *           tu.duy@exoplatform.com 
 * Jun 24, 2009 - 4:32:48 AM
 */

@ComponentConfig(
    events = { 
        @EventConfig(listeners = UIViewer.ChangePathActionListener.class)
    }
)
@SuppressWarnings("unused")
public class UIViewer extends UIContainer {
  private FAQService   fAqService;

  private String       path         = Utils.CATEGORY_HOME;

  private boolean      useAjax      = false;

  private RenderHelper renderHelper = new RenderHelper();

  private Log          log          = ExoLogger.getLogger(UIViewer.class);

  public UIViewer() {
    fAqService = (FAQService) PortalContainer.getComponent(FAQService.class);
  }

  private List<String> arrangeList(List<String> list) {
    List<String> newList = new ArrayList<String>();
    if (list.isEmpty() || list.size() == 0) {
      newList.add("<img src=\"/faq/skin/DefaultSkin/webui/background/HomeIcon.gif\" alt=\"" + Utils.CATEGORY_HOME + "\"/>");
    } else {
      for (int i = (list.size() - 1); i >= 0; i--) {
        if (i == (list.size() - 1)) {
          newList.add("<img src=\"/faq/skin/DefaultSkin/webui/background/HomeIcon.gif\" alt=\"" + list.get(i) + "\"/>");
        } else {
          newList.add(list.get(i));
        }
      }
    }
    return newList;
  }

  public ResourceResolver getTemplateResourceResolver(WebuiRequestContext context, String template) {
    return new FAQResourceResolver();
  }

  public String getTemplate() {
    return "FAQViewerTemplate";
  }

  private CategoryInfo getCategoryInfo() throws Exception {
    useAjax = FAQUtils.getUseAjaxFAQPortlet();
    return fAqService.getCategoryInfo(path, FAQUtils.getCategoriesIdFAQPortlet());
  }

  private String render(String s) {
    Question question = new Question();
    question.setDetail(s);
    return renderHelper.renderQuestion(question);
  }

  static public class ChangePathActionListener extends EventListener<UIViewer> {
    public void execute(Event<UIViewer> event) throws Exception {
      String path = event.getRequestContext().getRequestParameter(OBJECTID);
      UIViewer viewer = event.getSource();
      viewer.path = path;
      event.getRequestContext().addUIComponentToUpdateByAjax(viewer);
    }
  }
}