/*
    * Licensed to the Apache Software Foundation (ASF) under one
    * or more contributor license agreements.  See the NOTICE file
    * distributed with this work for additional information
    * regarding copyright ownership.  The ASF licenses this file
    * to you under the Apache 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.apache.org/licenses/LICENSE-2.0
   *
   * 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.apache.myfaces.custom.timednotifier;
  
  import java.io.IOException;
  
  import javax.faces.component.UIComponent;
  import javax.faces.component.UIInput;
  import javax.faces.component.UIOutput;
  import javax.faces.context.FacesContext;
  import javax.faces.context.ResponseWriter;
  import javax.faces.convert.ConverterException;
  
  import org.apache.commons.lang.StringUtils;
  import org.apache.myfaces.custom.dojo.DojoConfig;
  import org.apache.myfaces.custom.dojo.DojoUtils;
  import org.apache.myfaces.renderkit.html.util.AddResource;
  import org.apache.myfaces.renderkit.html.util.AddResourceFactory;
  import org.apache.myfaces.shared_tomahawk.renderkit.JSFAttr;
  import org.apache.myfaces.shared_tomahawk.renderkit.RendererUtils;
  import org.apache.myfaces.shared_tomahawk.renderkit.html.HTML;
  import org.apache.myfaces.shared_tomahawk.renderkit.html.HtmlRenderer;
  import org.apache.myfaces.shared_tomahawk.renderkit.html.HtmlRendererUtils;
  
  /**
   * 
   * 
   * @JSFRenderer
   *   renderKitId = "HTML_BASIC" 
   *   family = "javax.faces.Output"
   *   type = "org.apache.myfaces.TimedNotifierRenderer"
   * 
   * @author werpu
   * The html renderer for the timed notifier
   *
   */
  public class TimedNotifierRenderer extends HtmlRenderer {
  
      public void decode(FacesContext facesContext, UIComponent component) {
          RendererUtils.checkParamValidity(facesContext, component, null);
  
          if (component instanceof UIInput) {
              HtmlRendererUtils.decodeUIInput(facesContext, component);
          } else {
              throw new IllegalArgumentException("Unsupported component class " + component.getClass().getName());
          }
      }
  
      public void encodeEnd(FacesContext facesContext, UIComponent uiComponent) throws IOException {
          RendererUtils.checkParamValidity(facesContext, uiComponent, TimedNotifier.class);
  
          TimedNotifier notifier = (TimedNotifier) uiComponent;
  
          if (notifier.getDisabled() != null) {
  
              if (notifier.getDisabled().booleanValue())
                  return;
          }
  
          renderInitialization(facesContext, uiComponent, notifier);
  
          encodeJavascript(facesContext, notifier);
  
     
      }
  
      public Object getConvertedValue(FacesContext facesContext, UIComponent uiComponent, Object submittedValue) throws ConverterException {
          RendererUtils.checkParamValidity(facesContext, uiComponent, UIOutput.class);
  
          return RendererUtils.getConvertedUIOutputValue(facesContext, (UIOutput) uiComponent, submittedValue);
      }
  
      private void encodeJavascript(FacesContext facesContext, TimedNotifier notifier) throws IOException {
          String notifierClientId = notifier.getClientId(facesContext);
  
          String replacedClientId = notifierClientId.replaceAll(":", "_");
          String dialogVar        = replacedClientId + "Notifier_Dialog";
          String confirmVar         = dialogVar + "_Yes";
          
          Integer timeShow            = notifier.getShowDelay();
          Integer timeHide            = notifier.getHideDelay();
          
          UIComponent confirmComp = notifier.getConfirm();
        
             
        
        
 
         String notifierVar = replacedClientId + "Notifier";
 
         StringBuffer sb = new StringBuffer();
         sb.append("function "+replacedClientId+"() {\n");
         if(confirmComp == null)
             sb.append("var "+ notifierVar + " = new myfaces_TimedNotifier('" + 
                 dialogVar + "','" + confirmVar + "','" + notifierClientId + "',"+
                 timeShow.toString()+","+timeHide.toString()+");\n");
         else
               sb.append("var "+ notifierVar + " = new myfaces_TimedNotifier('" + 
                     dialogVar + "',null,'" + notifierClientId + "',"+
                     timeShow.toString()+","+timeHide.toString()+");\n");
                 
         sb.append( notifierVar + ".showDialog();\n");
         sb.append("};\n");
         sb.append("dojo.lang.setTimeout("+replacedClientId+","+timeShow.toString()+");");
 
         ResponseWriter writer = facesContext.getResponseWriter();
         writer.startElement(HTML.SCRIPT_ELEM, notifier);
         writer.writeAttribute(HTML.SCRIPT_TYPE_ATTR, HTML.SCRIPT_TYPE_TEXT_JAVASCRIPT, null);
         writer.write(sb.toString());
         writer.endElement(HTML.SCRIPT_ELEM);
 
     }
 
    
 
     private void renderInitialization(FacesContext facesContext, UIComponent uiComponent, TimedNotifier notifier) throws IOException {
         String javascriptLocation = (String) notifier.getAttributes().get(JSFAttr.JAVASCRIPT_LOCATION);
         DojoUtils.addMainInclude(facesContext, uiComponent, javascriptLocation, new DojoConfig());
         DojoUtils.addRequire(facesContext, uiComponent, "dojo.widget.Dialog");
         DojoUtils.addRequire(facesContext, uiComponent, "dojo.event.*");
 
         // DojoUtils.addRequire(facesContext, "dojo.xml.Parse");
 
         writeDialog(facesContext, notifier);
 
         AddResource addResource = AddResourceFactory.getInstance(facesContext);
 
         if (!DojoUtils.isInlineScriptSet(facesContext, "stateChangedNotifier.js"))
             addResource.addJavaScriptHere(facesContext, TimedNotifierRenderer.class, "timednotifier.js");
 
         String styleLocation = (String) uiComponent.getAttributes().get(JSFAttr.STYLE_LOCATION);
 
         // we need a style def for the dialog system
         if (StringUtils.isNotBlank(styleLocation)) {
             addResource.addStyleSheet(facesContext, AddResource.HEADER_BEGIN, styleLocation + "/default.css");
         } else {
             addResource.addStyleSheet(facesContext, AddResource.HEADER_BEGIN, TimedNotifierRenderer.class, "css/default.css");
         }
     }
 
    
 
     /**
      * dialog definition this one is needed for the dojoized dialog
      *
      * @param facesContext
      * @param uiComponent
      * @throws IOException
      */
     private void writeDialog(FacesContext facesContext, TimedNotifier uiComponent) throws IOException {
         /*
          * <div id="form1__idJsp1Notifier_Dialog" style="position:absolute;
          * visibility: hidden;"> <div id="form1__idJsp1Notifier_Dialog_Content">
          * values have changed do you really want to <br> submit the values
          * </div> <input type="button" id="form1__idJsp1Notifier_Dialog_Yes"
          * value="yes" /> <input type="button"
          * id="form1__idJsp1Notifier_Dialog_No" value="no" /> </div>
          */
         TimedNotifier notifier = (TimedNotifier) uiComponent;
         
         String notifierClientId = uiComponent.getClientId(facesContext);
         String replacedClientId = notifierClientId.replaceAll(":", "_");
         String dialogVar        = replacedClientId + "Notifier_Dialog";
         String yesText          = (String) uiComponent.getAttributes().get("yesText");
    
         yesText = (yesText == null) ? "Yes" : yesText;
    
         String content = uiComponent.getConfirmationMessage();
         
         String styleClass   = uiComponent.getStyleClass();
         
         ResponseWriter writer = facesContext.getResponseWriter();
         writer.startElement(HTML.DIV_ELEM, uiComponent);
         writer.writeAttribute(HTML.ID_ATTR, dialogVar, null);
         writer.writeAttribute(HTML.STYLE_ATTR, "position:absolute; visibility: hidden;", null);
         writer.writeAttribute(HTML.CLASS_ATTR, styleClass,null);
         writer.startElement(HTML.DIV_ELEM, uiComponent);
         writer.writeAttribute(HTML.CLASS_ATTR, styleClass,null);
            
         writer.startElement(HTML.DIV_ELEM, uiComponent);
         writer.writeAttribute(HTML.ID_ATTR, dialogVar + "_Content", null);
         
         UIComponent contentComp = notifier.getContent();
         if(contentComp == null)
             writer.write(content);
         else
             RendererUtils.renderChild(facesContext, contentComp);
         writer.endElement(HTML.DIV_ELEM);
         writer.write(HTML.NBSP_ENTITY);
         UIComponent confirmComp = notifier.getConfirm();
         if(confirmComp != null)
             RendererUtils.renderChild(facesContext, confirmComp);
         else {
             writer.startElement(HTML.INPUT_ELEM, uiComponent);
             writer.writeAttribute(HTML.TYPE_ATTR, HTML.BUTTON_ELEM, null);
             writer.writeAttribute(HTML.ID_ATTR, dialogVar + "_Yes", null);
             writer.writeAttribute(HTML.VALUE_ATTR, yesText, null);
             writer.endElement(HTML.INPUT_ELEM);
         }
         writer.write(HTML.NBSP_ENTITY);
         writer.endElement(HTML.DIV_ELEM);
         writer.endElement(HTML.DIV_ELEM);
     }
 }