/*
    * 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.example.demo;
  
  import javax.enterprise.context.SessionScoped;
  import javax.enterprise.event.Observes;
  import javax.faces.application.Application;
  import javax.faces.context.FacesContext;
  import javax.inject.Named;
  import java.io.Serializable;
  import java.util.ArrayList;
  import java.util.Enumeration;
  import java.util.List;
  import java.util.Locale;
  import java.util.ResourceBundle;
  
  import static org.apache.myfaces.tobago.util.ResourceUtils.TOBAGO_RESOURCE_BUNDLE;
  
  @Named
  @SessionScoped
  public class BundleController implements Serializable {
  
    private List<BundleEntry> resources = new ArrayList<>();
    private List<BundleEntry> messages = new ArrayList<>();
  
    public void clear(@Observes LocaleChanged event) {
      resources.clear();
      messages.clear();
    }
  
    public List<BundleEntry> getResources() {
      if (resources.size() == 0) {
        final FacesContext facesContext = FacesContext.getCurrentInstance();
        final ResourceBundle bundle =
            facesContext.getApplication().getResourceBundle(facesContext, TOBAGO_RESOURCE_BUNDLE);
        final Enumeration<String> keys = bundle.getKeys();
        while (keys.hasMoreElements()) {
          final String key = keys.nextElement();
          resources.add(new BundleEntry(key, bundle.getString(key)));
        }
      }
      return resources;
    }
  
    public List<BundleEntry> getMessages() {
      if (messages.size() == 0) {
        final FacesContext facesContext = FacesContext.getCurrentInstance();
        final Application application = facesContext.getApplication();
        final String bundleName = application.getMessageBundle();
        final Locale locale = facesContext.getViewRoot() != null
            ? facesContext.getViewRoot().getLocale() : application.getDefaultLocale();
        ResourceBundle bundle = ResourceBundle.getBundle(bundleName, locale);
        final Enumeration<String> keys = bundle.getKeys();
        while (keys.hasMoreElements()) {
          final String key = keys.nextElement();
          messages.add(new BundleEntry(key, bundle.getString(key)));
        }
      }
      return messages;
    }
  
  }