/*
    * 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.validator;
  
  import java.util.MissingResourceException;
  import java.util.ResourceBundle;
  
  import org.exoplatform.portal.webui.util.Util;
  import org.exoplatform.services.cms.templates.TemplateService;
  import org.exoplatform.web.application.ApplicationMessage;
  import org.exoplatform.webui.core.UIComponent;
  import org.exoplatform.webui.exception.MessageException;
  import org.exoplatform.webui.form.UIForm;
  import org.exoplatform.webui.form.UIFormInput;
  
  /**
   * Created by The eXo Platform SAS
   * Author : Phan Le Thanh Chuong
   *          chuong.phan@exoplatform.com, phan.le.thanh.chuong@gmail.com
   * Modified: - Extends from org.exoplatform.webui.form.validator.MandatoryValidator
   *             Use template name to generate a label for input instead of use form name
   *           - Only use for Form Generator feature
   * Nov 11, 2009
   */
  public class MandatoryValidator extends org.exoplatform.webui.form.validator.MandatoryValidator {
  
    @SuppressWarnings("unchecked")
    public void validate(UIFormInput uiInput) throws Exception {
      if((uiInput.getValue() != null) && ((String)uiInput.getValue()).trim().length() > 0) {
        return ;
      }
  
      UIComponent uiComponent = (UIComponent) uiInput ;
      UIForm uiForm = uiComponent.getAncestorOfType(UIForm.class) ;
      String templatePath = uiForm.getTemplate();
      String nodetypeName = "";
      String[] temps = templatePath.split("/");
      for (String temp : temps){
        if (temp.contains("_fg_n")) {
          nodetypeName = temp;
          break;
        }
      }
      TemplateService templateService = uiForm.getApplicationComponent(TemplateService.class);
      String nodetypeLabel = templateService.getTemplateLabel(nodetypeName).trim();
      ResourceBundle res = Util.getPortalRequestContext().getApplicationResourceBundle();
      String label = "";
      try {
        label = res.getString(nodetypeLabel + ".label." + uiInput.getName());
      } catch (MissingResourceException e) {
        label = uiInput.getName();
      }
      Object[]  args = {label, uiInput.getBindingField() } ;
      throw new MessageException(new ApplicationMessage("EmptyFieldValidator.msg.empty-input", args, ApplicationMessage.WARNING)) ;
    }
  }