/*
 * 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.wcm.webui.viewer;

import java.util.HashMap;
import java.util.Map;

import javax.jcr.Node;
import javax.jcr.PathNotFoundException;

import org.exoplatform.ecm.resolver.JCRResourceResolver;
import org.exoplatform.ecm.webui.presentation.UIBaseNodePresentation;
import org.exoplatform.portal.webui.util.Util;
import org.exoplatform.resolver.ResourceResolver;
import org.exoplatform.services.cms.impl.DMSConfiguration;
import org.exoplatform.services.cms.templates.TemplateService;
import org.exoplatform.services.wcm.core.NodeLocation;
import org.exoplatform.wcm.webui.Utils;
import org.exoplatform.web.application.ApplicationMessage;
import org.exoplatform.webui.application.WebuiRequestContext;
import org.exoplatform.webui.config.annotation.ComponentConfig;
import org.exoplatform.webui.core.UIComponent;
import org.exoplatform.webui.core.lifecycle.Lifecycle;
import org.exoplatform.webui.ext.UIExtensionManager;
import org.exoplatform.webui.ext.UIExtension;
import java.util.List;

/**
 * Created by The eXo Platform SAS
 * Author : Phan Le Thanh Chuong
 *          chuong.phan@exoplatform.com, phan.le.thanh.chuong@gmail.com
 * Nov 9, 2009  
 */
@ComponentConfig(
	lifecycle = Lifecycle.class    
)
public class UIContentViewer extends UIBaseNodePresentation {

	public static final String TEMPLATE_NOT_SUPPORT = "UIContentViewer.msg.template-not-support";
	
	private NodeLocation originalNodeLocation;
	
	private NodeLocation viewNodeLocation;
	
	public Node getOriginalNode() {
		return NodeLocation.getNodeByLocation(originalNodeLocation);
	}
	
  public void setOriginalNode(Node originalNode) throws Exception{
    originalNodeLocation = NodeLocation.make(originalNode);
  }
	
	public Node getNode() {
		return NodeLocation.getNodeByLocation(viewNodeLocation);
	}

	public void setNode(Node viewNode) {
		viewNodeLocation = NodeLocation.make(viewNode);
	}

	public String getTemplate() {
		TemplateService templateService = getApplicationComponent(TemplateService.class);
    String userName = Util.getPortalRequestContext().getRemoteUser() ;
    try {
      String nodeType = getOriginalNode().getPrimaryNodeType().getName();
      String repository = getRepository();
      if(templateService.isManagedNodeType(nodeType, repository)) 
        return templateService.getTemplatePathByUser(false, nodeType, userName, repository) ;
    } catch (PathNotFoundException e) {
    	Utils.createPopupMessage(this, TEMPLATE_NOT_SUPPORT, null, ApplicationMessage.ERROR);
		} catch (Exception e) {
    	Utils.createPopupMessage(this, TEMPLATE_NOT_SUPPORT, null, ApplicationMessage.ERROR);
    }
    return null ;
	}

	public ResourceResolver getTemplateResourceResolver(WebuiRequestContext context, String template) {
		try {
			DMSConfiguration dmsConfiguration = getApplicationComponent(DMSConfiguration.class);
			String repository = getRepository();
			String workspace = dmsConfiguration.getConfig(repository).getSystemWorkspace();
			return new JCRResourceResolver(repository, workspace, "exo:templateFile");
		} catch (Exception e) {
			return null;
		}
	}
	
	public String getRepositoryName() {
		try {
			return getRepository();
		}catch (Exception ex) {
			return null;
		}
	}
	
	public String getTemplatePath() {
		return null;
	}
	
	public String getNodeType() {
		return null;
	}

	public boolean isNodeTypeSupported() {
		return false;
	}

	public UIComponent getCommentComponent() {
		return null;
	}
	
	public UIComponent getRemoveAttach() {
		return null;
	}

	public UIComponent getRemoveComment() {
		return null;
	}

	public UIComponent getUIComponent(String mimeType) throws Exception {
		UIExtensionManager manager = getApplicationComponent(UIExtensionManager.class);
		List<UIExtension> extensions = manager.getUIExtensions(org.exoplatform.ecm.webui.utils.Utils.FILE_VIEWER_EXTENSION_TYPE);
	    Map<String, Object> context = new HashMap<String, Object>();
	    context.put(org.exoplatform.ecm.webui.utils.Utils.MIME_TYPE, mimeType);
	    for (UIExtension extension : extensions) {
	      UIComponent uiComponent = manager.addUIExtension(extension, context, this);
	      if(uiComponent != null) return uiComponent;
	    }
	    return null;
	}
	
}
