/*
    * 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.internal.renderkit.renderer;
  
  import org.apache.myfaces.tobago.context.Markup;
  import org.apache.myfaces.tobago.internal.component.AbstractUIMessages;
  import org.apache.myfaces.tobago.internal.util.HtmlRendererUtils;
  import org.apache.myfaces.tobago.renderkit.RendererBase;
  import org.apache.myfaces.tobago.renderkit.css.BootstrapClass;
  import org.apache.myfaces.tobago.renderkit.css.TobagoClass;
  import org.apache.myfaces.tobago.renderkit.html.Arias;
  import org.apache.myfaces.tobago.renderkit.html.DataAttributes;
  import org.apache.myfaces.tobago.renderkit.html.HtmlAttributes;
  import org.apache.myfaces.tobago.renderkit.html.HtmlButtonTypes;
  import org.apache.myfaces.tobago.renderkit.html.HtmlElements;
  import org.apache.myfaces.tobago.renderkit.html.HtmlInputTypes;
  import org.apache.myfaces.tobago.renderkit.html.HtmlRoleValues;
  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.application.FacesMessage;
  import javax.faces.context.FacesContext;
  import java.io.IOException;
  import java.lang.invoke.MethodHandles;
  import java.util.List;
  
  public class MessagesRenderer<T extends AbstractUIMessages> extends RendererBase<T> {
  
    private static final Logger LOG = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());
  
    @Override
    public void encodeEndInternal(final FacesContext facesContext, final T component) throws IOException {
  
      if (component.isConfirmation()) {
        LOG.warn("'confirmation' is currently not supported for tc:messages!");
      }
  
      final TobagoResponseWriter writer = getResponseWriter(facesContext);
  
      if (LOG.isDebugEnabled()) {
        LOG.debug("facesContext is " + facesContext.getClass().getName());
      }
      final List<AbstractUIMessages.Item> messageList = component.createMessageList(facesContext);
  
      // with id
        /*String focusId = null;
        Iterator clientIds;
        if (ComponentUtils.getBooleanAttribute(messages, Attributes.globalOnly)) {
          ArrayList<String> list = new ArrayList<String>(1);
          list.add(null);
          clientIds = list.iterator();
        } else {
          clientIds = facesContext.getClientIdsWithMessages();
        }*/
  
      writer.startElement(HtmlElements.TOBAGO_MESSAGES);
      writer.writeIdAttribute(component.getClientId(facesContext));
      final Markup markup = component.getMarkup();
      writer.writeClassAttribute(
          TobagoClass.MESSAGES,
          TobagoClass.MESSAGES.createMarkup(markup),
          component.getCustomClass());
  
      FacesMessage.Severity lastSeverity = null;
      boolean first = true;
  
      for (final AbstractUIMessages.Item item : messageList) {
        final FacesMessage message = item.getFacesMessage();
        final FacesMessage.Severity severity = message.getSeverity();
  
        if (!first && lastSeverity != severity) {
          writer.endElement(HtmlElements.DIV);
        }
  
        if (first || lastSeverity != severity) {
          writer.startElement(HtmlElements.DIV);
          writer.writeClassAttribute(
              BootstrapClass.ALERT, BootstrapClass.ALERT_DISMISSIBLE, BootstrapClass.alert(severity));
          HtmlRendererUtils.writeDataAttributes(facesContext, writer, component);
          writer.writeAttribute(HtmlAttributes.ROLE, HtmlRoleValues.ALERT.toString(), false);
 
         writer.startElement(HtmlElements.BUTTON);
         writer.writeAttribute(HtmlAttributes.TYPE, HtmlButtonTypes.BUTTON);
         writer.writeClassAttribute(BootstrapClass.BTN_CLOSE);
         writer.writeAttribute(DataAttributes.DISMISS, "alert", false);
         writer.writeAttribute(Arias.ACTIVEDESCENDANT, "Close", false); // todo: i18n
         writer.endElement(HtmlElements.BUTTON);
       }
 
       encodeMessage(writer, component, message, item.getClientId());
 
       lastSeverity = severity;
       first = false;
     }
     if (messageList.size() > 0) {
       writer.endElement(HtmlElements.DIV); // close open tag from for-loop
     }
     if (component.getFor() == null) {
       final String id = component.getClientId(facesContext) + ComponentUtils.SUB_SEPARATOR + "messagesExists";
       writer.startElement(HtmlElements.INPUT);
       writer.writeAttribute(HtmlAttributes.VALUE, Boolean.TRUE.toString(), false);
       writer.writeAttribute(HtmlAttributes.ID, id, false);
       writer.writeAttribute(HtmlAttributes.NAME, id, false);
       writer.writeAttribute(HtmlAttributes.TYPE, HtmlInputTypes.HIDDEN);
       writer.endElement(HtmlElements.INPUT);
     }
     writer.endElement(HtmlElements.TOBAGO_MESSAGES);
 /*
       while(clientIds.hasNext()) {
         String clientId = (String) clientIds.next();
         encodeMessagesForId(facesContext, writer, clientId, showSummary, showDetail);
         if (focusId == null) {
           focusId = clientId;
         }
       }
   todo: don't forget: focus
       if (focusId != null) {
         ComponentUtils.findPage(facesContext, messages).setFocusId(focusId);
       }
 */
   }
 
   private void encodeMessage(
       final TobagoResponseWriter writer, final AbstractUIMessages messages, final FacesMessage message,
       final String clientId)
       throws IOException {
 
     final String summary = message.getSummary();
     final String detail = message.getDetail();
     final boolean showSummary = summary != null && messages.isShowSummary() && summary.length() > 0;
     final boolean showDetails = detail != null && messages.isShowDetail() && detail.length() > 0;
     writer.startElement(HtmlElements.LABEL);
     if (clientId != null) {
       writer.writeAttribute(HtmlAttributes.FOR, clientId, false);
     }
     writer.writeAttribute(HtmlAttributes.TITLE, detail, true);
 
     if (showSummary && showDetails && !summary.equals(detail)) {
       writer.startElement(HtmlElements.STRONG);
       writer.writeText(summary);
       writer.endElement(HtmlElements.STRONG);
       writer.writeText(detail);
     } else if (showSummary) {
       writer.writeText(summary);
     } else if (showDetails) {
       writer.writeText(detail);
     } else {
       writer.writeText(message.getSeverity().toString());
     }
     writer.endElement(HtmlElements.LABEL);
 
     message.rendered();
   }
 }