/*
    * Copyright 2008 The Kuali Foundation
    * 
    * Licensed under the Educational Community 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.opensource.org/licenses/ecl2.php
    * 
   * 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.kuali.ole.sys.document.web.renderers;
  
  import java.io.IOException;
  
  import javax.servlet.jsp.JspException;
  import javax.servlet.jsp.JspWriter;
  import javax.servlet.jsp.PageContext;
  import javax.servlet.jsp.tagext.Tag;
  
  import org.apache.struts.taglib.bean.WriteTag;
  import org.kuali.ole.sys.context.SpringContext;
  import org.kuali.rice.core.api.config.property.ConfigurationService;
  
  /**
   * The standard renderer of totals for an accounting line group
   */
  public class GroupTotalRenderer extends TotalRendererBase {
      private String totalProperty;
      private WriteTag writeTag = new WriteTag();
      
      private String totalLabelProperty = "accounting.line.group.total.label";
      private String formName = "KualiForm";
      
      /**
       * Constructs a GroupTotalRenderer, setting permanent values on the writeTag tag
       */
      public GroupTotalRenderer() {
          writeTag.setName(formName);
      }
  
      /**
       * Gets the totalProperty attribute. 
       * @return Returns the totalProperty.
       */
      public String getTotalProperty() {
          return totalProperty;
      }
  
      /**
       * Sets the totalProperty attribute value.
       * @param totalProperty The totalProperty to set.
       */
      public void setTotalProperty(String totalProperty) {
          this.totalProperty = totalProperty;
      }
  
      /**
       * Gets the totalLabelProperty attribute. 
       * @return Returns the totalLabelProperty.
       */
      public String getTotalLabelProperty() {
          return totalLabelProperty;
      }
  
      /**
       * Sets the totalLabelProperty attribute value.
       * @param totalLabelProperty The totalLabelProperty to set.
       */
      public void setTotalLabelProperty(String totalLabelProperty) {
          this.totalLabelProperty = totalLabelProperty;
      }
  
      /**
       * Clears out the totalProperty
       * @see org.kuali.ole.sys.document.web.renderers.Renderer#clear()
       */
      public void clear() {
          super.clear();
          totalProperty = null;
          
          writeTag.setPageContext(null);
          writeTag.setParent(null);
          writeTag.setProperty(null);
      }
  
      /**
       * Uses a Struts write tag to dump out the total
       * @see org.kuali.ole.sys.document.web.renderers.Renderer#render(javax.servlet.jsp.PageContext, javax.servlet.jsp.tagext.Tag)
       */
      public void render(PageContext pageContext, Tag parentTag) throws JspException {
          JspWriter out = pageContext.getOut();
          
          try {
              out.write("<tr>");
             
             final int emptyCellSpanBefore = this.getColumnNumberOfRepresentedCell() - 1;
             out.write("<td  class=\"total-line\" colspan=\"");
             out.write(Integer.toString(emptyCellSpanBefore));
             out.write("\">&nbsp;</td>");
             
             out.write("<td class=\"total-line\" style=\"border-left: 0px;\">");
             
             out.write("<strong>");
             
             out.write(SpringContext.getBean(ConfigurationService.class).getPropertyValueAsString(totalLabelProperty));
             out.write("&nbsp;");
             
             writeTag.setPageContext(pageContext);
             writeTag.setParent(parentTag);
             writeTag.setProperty(getTotalProperty());
             writeTag.doStartTag();
             writeTag.doEndTag();
             
             out.write("</strong>");
             
             out.write("</td>");
             
             final int emptyCellSpanAfter = this.getCellCount() - this.getColumnNumberOfRepresentedCell();
             if(emptyCellSpanAfter > 0) {
                 out.write("<td class=\"total-line\" style=\"border-left: 0px;\" colspan=\"");
                 out.write(Integer.toString(emptyCellSpanAfter));
                 out.write("\">&nbsp;</td>");
             }
             
             out.write("</tr>");
         }
         catch (IOException ioe) {
             throw new JspException("Difficulty rendering group total", ioe);
         }
     }
 }