/*
 * Copyright (C) 2005 Alfresco, Inc.
 *
 * Licensed under the Mozilla Public License version 1.1 
 * with a permitted attribution clause. You may obtain a
 * copy of the License at
 *
 *   http://www.alfresco.org/legal/license.txt
 *
 * 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 org.alfresco.web.config;

import org.alfresco.config.ConfigElement;
import org.alfresco.config.ConfigException;
import org.alfresco.config.xml.elementreader.ConfigElementReader;
import org.dom4j.Element;

/**
 * Custom element reader to parse config for client config values
 * 
 * @author Kevin Roast
 */
public class ClientElementReader implements ConfigElementReader
{
   public static final String ELEMENT_RECENTSPACESITEMS = "recent-spaces-items";
   public static final String ELEMENT_ERRORPAGE = "error-page";
   public static final String ELEMENT_LOGINPAGE = "login-page";
   public static final String ELEMENT_HELPURL = "help-url";
   public static final String ELEMENT_EDITLINKTYPE = "edit-link-type";
   public static final String ELEMENT_SEARCHMINIMUM = "search-minimum";
   public static final String ELEMENT_HOMESPACEPERMISSION = "home-space-permission";
   public static final String ELEMENT_FROMEMAILADDRESS = "from-email-address";
   public static final String ELEMENT_SHELFVISIBLE = "shelf-visible";
   
   /**
    * @see org.alfresco.config.xml.elementreader.ConfigElementReader#parse(org.dom4j.Element)
    */
   @SuppressWarnings("unchecked")
   public ConfigElement parse(Element element)
   {
      ClientConfigElement configElement = null;
      
      if (element != null)
      {
         String name = element.getName();
         if (name.equals(ClientConfigElement.CONFIG_ELEMENT_ID) == false)
         {
            throw new ConfigException("ClientElementReader can only parse " +
                  ClientConfigElement.CONFIG_ELEMENT_ID + " elements, the element passed was '" + 
                  name + "'");
         }
         
         configElement = new ClientConfigElement();
         
         // get the recent space max items
         Element recentSpaces = element.element(ELEMENT_RECENTSPACESITEMS);
         if (recentSpaces != null)
         {
            configElement.setRecentSpacesItems(Integer.parseInt(recentSpaces.getTextTrim()));
         }
         
         // get the shelf component default visibility
         Element shelfVisible = element.element(ELEMENT_SHELFVISIBLE);
         if (shelfVisible != null)
         {
            configElement.setShelfVisible(Boolean.parseBoolean(shelfVisible.getTextTrim()));
         }
         
         // get the Help url
         Element helpUrl = element.element(ELEMENT_HELPURL);
         if (helpUrl != null)
         {
            configElement.setHelpUrl(helpUrl.getTextTrim());
         }
         
         // get the edit link type
         Element editLinkType = element.element(ELEMENT_EDITLINKTYPE);
         if (editLinkType != null)
         {
            configElement.setEditLinkType(editLinkType.getTextTrim());
         }
         
         // get the minimum number of characters for valid search string
         Element searchMin = element.element(ELEMENT_SEARCHMINIMUM);
         if (searchMin != null)
         {
            configElement.setSearchMinimum(Integer.parseInt(searchMin.getTextTrim()));
         }
         
         // get the default permission for newly created users Home Spaces
         Element permission = element.element(ELEMENT_HOMESPACEPERMISSION);
         if (permission != null)
         {
            configElement.setHomeSpacePermission(permission.getTextTrim());
         }
         
         // get the from address to use when sending emails from the client
         Element fromEmail = element.element(ELEMENT_FROMEMAILADDRESS);
         if (fromEmail != null)
         {
            configElement.setFromEmailAddress(fromEmail.getTextTrim());
         }
         
         // get the error page
         Element errorPage = element.element(ELEMENT_ERRORPAGE);
         if (errorPage != null)
         {
            configElement.setErrorPage(errorPage.getTextTrim());
         }
         
         // get the login page
         Element loginPage = element.element(ELEMENT_LOGINPAGE);
         if (loginPage != null)
         {
            configElement.setLoginPage(loginPage.getTextTrim());
         }
      }
      
      return configElement;
   }
}