/*
    * 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.cdi.converter;
  
  import java.util.logging.Level;
  import java.util.logging.Logger;
  import javax.enterprise.context.Dependent;
  import javax.enterprise.context.spi.CreationalContext;
  import javax.enterprise.inject.Typed;
  import javax.enterprise.inject.spi.BeanManager;
  import javax.faces.FacesException;
  import javax.faces.convert.Converter;
  import org.apache.myfaces.cdi.util.AbstractDynamicProducer;
  import org.apache.myfaces.shared.util.ClassUtils;
  
  /**
   *
   */
  @Typed
  public class FacesConverterProducer extends AbstractDynamicProducer<Converter>
  {
      public FacesConverterProducer(BeanManager beanManager, FacesConverterInfo typeInfo)
      {
          super(beanManager);
          
          String forClass = typeInfo.getForClass() == null ? "" : 
                  ((typeInfo.getForClass() == Object.class) ? "" : typeInfo.getForClass().getName());
          String converterId = typeInfo.getConverterId() == null ? "" : typeInfo.getConverterId();
          String id = "" + typeInfo.getType() + "_" + forClass + "_" + converterId;
  
          FacesConverterAnnotationLiteral literal = new FacesConverterAnnotationLiteral(
                          typeInfo.getForClass() == null ? Object.class : typeInfo.getForClass(), 
                          typeInfo.getConverterId() == null ? "" : typeInfo.getConverterId(), true);
  
          super.id(id)
                  .scope(Dependent.class)
                  .qualifiers(literal)
                  .types(typeInfo.getType(), Object.class)
                  .beanClass(ClassUtils.simpleClassForName(typeInfo.getType().getTypeName()))
                  .create(e -> createConverter(e));
      }
  
      protected Converter createConverter(CreationalContext<Converter> cc)
      {
          Class<? extends Converter> converterClass = (Class<? extends Converter>) getBeanClass();        
          Converter converter = null;
          try
          {
              converter = converterClass.newInstance();
          }
          catch (Exception ex)
          {
              Logger.getLogger(FacesConverterProducer.class.getName()).log(
                      Level.SEVERE, "Could not instantiate converter " + converterClass.getName(), ex);
              throw new FacesException("Could not instantiate converter: " + converterClass.getName(), ex);
              
          }
          return converter;
      }
  }