/*
    * 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.component;
  
  import org.apache.myfaces.tobago.internal.util.DateFormatUtils;
  import org.apache.myfaces.tobago.util.ComponentUtils;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  import javax.faces.context.FacesContext;
  import javax.faces.convert.Converter;
  import javax.faces.convert.DateTimeConverter;
  import java.lang.invoke.MethodHandles;
  import java.util.Date;
  
  /**
   * {@link org.apache.myfaces.tobago.internal.taglib.component.DateTagDeclaration}
   */
  public abstract class AbstractUIDate extends AbstractUIIn {
  
    private static final Logger LOG = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());
  
    public String getPattern() {
      final FacesContext facesContext = getFacesContext();
      Converter converter = ComponentUtils.getConverter(facesContext, this, getSubmittedValue());
      if (!(converter instanceof DateTimeConverter)) {
        // hack for prototyping, if there is no value behind the component.
        converter = facesContext.getApplication().createConverter(Date.class);
        if (LOG.isWarnEnabled()) {
          LOG.warn("Can't find a converter to get a pattern in component {}! Using default.",
              getClientId(facesContext));
        }
      }
      return DateFormatUtils.findPattern((DateTimeConverter) converter);
    }
  
    public abstract boolean isTodayButton();
  }