/*
    * 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.facelets;
  
  import org.apache.myfaces.tobago.component.Attributes;
  import org.apache.myfaces.tobago.event.ResetFormActionListener;
  import org.apache.myfaces.tobago.event.ResetInputActionListener;
  import org.apache.myfaces.tobago.event.ValueExpressionResetInputActionListener;
  import org.apache.myfaces.tobago.util.ComponentUtils;
  
  import javax.el.ELException;
  import javax.el.ValueExpression;
  import javax.faces.FacesException;
  import javax.faces.component.ActionSource;
  import javax.faces.component.UIComponent;
  import javax.faces.view.facelets.ComponentHandler;
  import javax.faces.view.facelets.FaceletContext;
  import javax.faces.view.facelets.TagAttribute;
  import javax.faces.view.facelets.TagConfig;
  import javax.faces.view.facelets.TagException;
  import javax.faces.view.facelets.TagHandler;
  import java.io.IOException;
  
  public class ResetInputActionListenerHandler extends TagHandler {
  
    private final TagAttribute execute;
  
    public ResetInputActionListenerHandler(TagConfig config) {
      super(config);
      execute = getAttribute(Attributes.EXECUTE);
    }
  
    public void apply(FaceletContext faceletContext, UIComponent parent)
        throws IOException, FacesException, ELException {
      if (parent instanceof ActionSource) {
        if (ComponentHandler.isNew(parent)) {
          ActionSource actionSource = (ActionSource) parent;
          if (execute == null) {
            actionSource.addActionListener(new ResetFormActionListener());
          } else if (execute.isLiteral())  {
            actionSource.addActionListener(new ResetInputActionListener(ComponentUtils.splitList(execute.getValue())));
          } else {
            ValueExpression forValueExpression = execute.getValueExpression(faceletContext, String.class);
            actionSource.addActionListener(new ValueExpressionResetInputActionListener(forValueExpression));
          }
        }
      } else {
        throw new TagException(tag, "Parent is not of type ActionSource, type is: " + parent);
      }
    }
  }