/*
    * 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.extensions.validator.core;
  
  import org.apache.myfaces.extensions.validator.core.storage.ViolationSeverityInterpreterStorage;
  import org.apache.myfaces.extensions.validator.core.validation.parameter.ViolationSeverityInterpreter;
  import org.apache.myfaces.extensions.validator.internal.UsageCategory;
  import org.apache.myfaces.extensions.validator.internal.UsageInformation;
  import org.apache.myfaces.extensions.validator.util.ClassUtils;
  import org.apache.myfaces.extensions.validator.util.ExtValUtils;
  
  import javax.faces.context.FacesContext;
  import java.util.ArrayList;
  import java.util.List;
  import java.util.Map;
  
  /**
   * @since x.x.3
   */
  @UsageInformation(UsageCategory.INTERNAL)
  class ExtValContextInternals
  {
      boolean isComponentInitializationActivated()
      {
          return !ExtValCoreConfiguration.get().deactivateComponentInitialization();
      }
  
      @SuppressWarnings({"unchecked"})
      synchronized InformationProviderBean initInformationProviderBean(Map applicationMap)
      {
          List<String> informationProviderBeanClassNames = new ArrayList<String>();
  
          informationProviderBeanClassNames.add(ExtValCoreConfiguration.get().customInformationProviderBeanClassName());
          informationProviderBeanClassNames.add(InformationProviderBean.CUSTOM_BEAN);
  
          InformationProviderBean informationProviderBean;
          for (String className : informationProviderBeanClassNames)
          {
              informationProviderBean = (InformationProviderBean) ClassUtils.tryToInstantiateClassForName(className);
  
              if (informationProviderBean != null)
              {
                  applicationMap.put(InformationProviderBean.BEAN_NAME, informationProviderBean);
                  return informationProviderBean;
              }
          }
  
          tryToInitCustomConfiguredInformationProviderBeanClassName(applicationMap);
  
          if (applicationMap.containsKey(InformationProviderBean.BEAN_NAME))
          {
              return (InformationProviderBean) applicationMap.get(InformationProviderBean.BEAN_NAME);
          }
          return new InformationProviderBean();
      }
  
      @SuppressWarnings({"unchecked"})
      synchronized void tryToInitCustomConfiguredInformationProviderBeanClassName(Map applicationMap)
      {
          InformationProviderBean bean = (InformationProviderBean) ExtValUtils.getELHelper()
                  .getBean(InformationProviderBean.CUSTOM_BEAN.replace(".", "_"));
  
          if (bean != null)
          {
              applicationMap.put(InformationProviderBean.BEAN_NAME, bean);
          }
      }
  
      InformationProviderBean getInformationProviderBean()
      {
          Map applicationMap = FacesContext.getCurrentInstance().getExternalContext().getApplicationMap();
          InformationProviderBean bean = (InformationProviderBean) applicationMap.get(InformationProviderBean.BEAN_NAME);
  
          if (bean == null)
          {
              return initInformationProviderBean(applicationMap);
          }
          return bean;
      }
  
      ViolationSeverityInterpreter getRequestScopedViolationSeverityInterpreter()
      {
          return ExtValUtils.getStorage(
                 ViolationSeverityInterpreterStorage.class, ViolationSeverityInterpreterStorage.class.getName())
                 .getViolationSeverityInterpreter();
     }
 }