/*
    * 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.tobago.renderkit.html.scarborough.standard.tag;
  
  import org.apache.myfaces.tobago.component.Attributes;
  import org.apache.myfaces.tobago.component.UITextarea;
  import org.apache.myfaces.tobago.renderkit.HtmlUtils;
  import org.apache.myfaces.tobago.renderkit.InputRendererBase;
  import org.apache.myfaces.tobago.renderkit.css.Classes;
  import org.apache.myfaces.tobago.renderkit.css.Style;
  import org.apache.myfaces.tobago.renderkit.html.HtmlAttributes;
  import org.apache.myfaces.tobago.renderkit.html.HtmlElements;
  import org.apache.myfaces.tobago.renderkit.html.util.HtmlRendererUtils;
  import org.apache.myfaces.tobago.renderkit.util.RenderUtils;
  import org.apache.myfaces.tobago.util.ComponentUtils;
  import org.apache.myfaces.tobago.webapp.TobagoResponseWriter;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  import javax.faces.component.UIComponent;
  import javax.faces.context.FacesContext;
  import javax.faces.validator.LengthValidator;
  import javax.faces.validator.Validator;
  import java.io.IOException;
  
  public class TextareaRenderer extends InputRendererBase {
  
    private static final Logger LOG = LoggerFactory.getLogger(TextareaRenderer.class);
  
    @Override
    public void encodeEnd(FacesContext facesContext, UIComponent component) throws IOException {
      if (!(component instanceof UITextarea)) {
        LOG.error("Wrong type: Need " + UITextarea.class.getName() + ", but was " + component.getClass().getName());
        return;
      }
  
      UITextarea input = (UITextarea) component;
      String title = HtmlRendererUtils.getTitleFromTipAndMessages(facesContext, component);
  
      String clientId = input.getClientId(facesContext);
      String onchange = HtmlUtils.generateOnchange(input, facesContext);
  
      TobagoResponseWriter writer = HtmlRendererUtils.getTobagoResponseWriter(facesContext);
      writer.startElement(HtmlElements.TEXTAREA, input);
      writer.writeNameAttribute(clientId);
      writer.writeIdAttribute(clientId);
      HtmlRendererUtils.writeDataAttributes(facesContext, writer, input);
      writer.writeAttribute(HtmlAttributes.ROWS, null, Attributes.ROWS);
      if (title != null) {
        writer.writeAttribute(HtmlAttributes.TITLE, title, true);
      }
      writer.writeAttribute(HtmlAttributes.READONLY, input.isReadonly());
      writer.writeAttribute(HtmlAttributes.DISABLED, input.isDisabled());
      writer.writeAttribute(HtmlAttributes.REQUIRED, input.isRequired());
      Integer tabIndex = input.getTabIndex();
      if (tabIndex != null) {
        writer.writeAttribute(HtmlAttributes.TABINDEX, tabIndex);
      }
      HtmlRendererUtils.renderDojoDndItem(component, writer, true);
  
      writer.writeClassAttribute(Classes.create(input));
      Style style = new Style(facesContext, input);
      writer.writeStyleAttribute(style);
      if (onchange != null) {
        writer.writeAttribute(HtmlAttributes.ONCHANGE, onchange, null);
      }
      int maxLength = -1;
      String pattern = null;
      for (Validator validator : input.getValidators()) {
        if (validator instanceof LengthValidator) {
          LengthValidator lengthValidator = (LengthValidator) validator;
          maxLength = lengthValidator.getMaximum();
        }
        /*if (validator instanceof RegexValidator) {
          RegexValidator regexValidator = (RegexValidator) validator;
          pattern = regexValidator.getPattern();
        }*/
      }
      if (maxLength > 0) {
        writer.writeAttribute(HtmlAttributes.MAXLENGTH, maxLength);
      }
      if (pattern != null) {
       writer.writeAttribute(HtmlAttributes.PATTERN, pattern, false);
     }
     HtmlRendererUtils.renderCommandFacet(input, facesContext, writer);
     HtmlRendererUtils.renderFocus(clientId, input.isFocus(), ComponentUtils.isError(input), facesContext, writer);
 
     /*String placeholder = input.getPlaceholder();
     if (placeholder != null) {
       writer.writeAttribute(HtmlAttributes.PLACEHOLDER, placeholder, true);
     }*/
     String currentValue = RenderUtils.currentValue(input);
     if (currentValue != null) {
       // this is because browsers eat the first CR+LF of <textarea>
       if (currentValue.startsWith("\r\n")) {
         currentValue = "\r\n" + currentValue;
       } else if (currentValue.startsWith("\n")) {
         currentValue = "\n" + currentValue;
       } else if (currentValue.startsWith("\r")) {
         currentValue = "\r" + currentValue;
       }
       writer.writeText(currentValue);
     }
     writer.endElement(HtmlElements.TEXTAREA);
     /*if (placeholder != null && !VariableResolverUtils.resolveClientProperties(facesContext)
         .getUserAgent().hasCapability(Capability.PLACEHOLDER)) {
       HtmlRendererUtils.createPlaceholderDiv(input, currentValue, placeholder, style, writer);
     }*/
 
   }
 }