/*
    * 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.context.ResourceUtils;
  import org.apache.myfaces.tobago.internal.component.AbstractUIData;
  import org.apache.myfaces.tobago.internal.component.AbstractUITreeNode;
  import org.apache.myfaces.tobago.layout.Display;
  import org.apache.myfaces.tobago.layout.LayoutBase;
  import org.apache.myfaces.tobago.renderkit.css.Classes;
  import org.apache.myfaces.tobago.renderkit.css.Style;
  import org.apache.myfaces.tobago.renderkit.html.DataAttributes;
  import org.apache.myfaces.tobago.renderkit.html.HtmlElements;
  import org.apache.myfaces.tobago.renderkit.html.util.HtmlRendererUtils;
  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 java.io.IOException;
  
  public class TreeNodeRenderer extends TreeNodeRendererBase {
  
    private static final Logger LOG = LoggerFactory.getLogger(TreeNodeRenderer.class);
  
    protected static final String OPEN_FOLDER
        = ResourceUtils.createString("image", "treeNode", "icon", "open", ResourceUtils.GIF);
    protected static final String CLOSED_FOLDER
        = ResourceUtils.createString("image", "treeNode", "icon", ResourceUtils.GIF);
    protected static final String LEAF
        = ResourceUtils.createString("image", "treeNode", "icon", "leaf", ResourceUtils.GIF);
  
    @Override
    public void encodeBegin(FacesContext facesContext, UIComponent component) throws IOException {
  
      final AbstractUITreeNode node = (AbstractUITreeNode) component;
      final AbstractUIData data = ComponentUtils.findAncestor(node, AbstractUIData.class);
  
      final boolean dataRendersRowContainer = data.isRendersRowContainer();
      final boolean folder = node.isFolder();
      final String clientId = node.getClientId(facesContext);
      final String parentId = data.getRowParentClientId();
      final boolean visible = data.isRowVisible();
  
      final TobagoResponseWriter writer = HtmlRendererUtils.getTobagoResponseWriter(facesContext);
  
      writer.startElement(HtmlElements.DIV, null);
  
      // div id
      writer.writeIdAttribute(clientId);
      if (!folder) {
        HtmlRendererUtils.renderDojoDndItem(node, writer, true);
      }
      writer.writeClassAttribute(Classes.create(node));
      HtmlRendererUtils.writeDataAttributes(facesContext, writer, node);
      if (parentId != null) {
        writer.writeAttribute(DataAttributes.TREEPARENT, parentId, false);
      }
  
      Style style = new Style();
      // In the case of a sheet, we need not hiding the node, because the whole TR will be hidden.
      if (!dataRendersRowContainer && !visible) {
        style.setDisplay(Display.NONE);
      }
  
      // div style (width)
      Style widthStyle = new Style(facesContext, (LayoutBase) data);
      if (widthStyle.getWidth() != null) {
        style.setWidth(widthStyle.getWidth().subtract(22)); // fixme: 4 + 18 for scrollbar
      }
      writer.writeStyleAttribute(style);
    }
  
    @Override
    public void encodeEnd(FacesContext facesContext, UIComponent component) throws IOException {
      final TobagoResponseWriter writer = HtmlRendererUtils.getTobagoResponseWriter(facesContext);
      writer.endElement(HtmlElements.DIV);
    }
  }