/**
    * This file Copyright (c) 2011-2018 Magnolia International
    * Ltd.  (http://www.magnolia-cms.com). All rights reserved.
    *
    *
    * This file is dual-licensed under both the Magnolia
    * Network Agreement and the GNU General Public License.
    * You may elect to use one or the other of these licenses.
    *
   * This file is distributed in the hope that it will be
   * useful, but AS-IS and WITHOUT ANY WARRANTY; without even the
   * implied warranty of MERCHANTABILITY or FITNESS FOR A
   * PARTICULAR PURPOSE, TITLE, or NONINFRINGEMENT.
   * Redistribution, except as permitted by whichever of the GPL
   * or MNA you select, is prohibited.
   *
   * 1. For the GPL license (GPL), you can redistribute and/or
   * modify this file under the terms of the GNU General
   * Public License, Version 3, as published by the Free Software
   * Foundation.  You should have received a copy of the GNU
   * General Public License, Version 3 along with this program;
   * if not, write to the Free Software Foundation, Inc., 51
   * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
   *
   * 2. For the Magnolia Network Agreement (MNA), this file
   * and the accompanying materials are made available under the
   * terms of the MNA which accompanies this distribution, and
   * is available at http://www.magnolia-cms.com/mna.html
   *
   * Any modifications to this file must keep this entire header
   * intact.
   *
   */
  package info.magnolia.objectfactory.guice;
  
  import info.magnolia.cms.core.AggregationState;
  import info.magnolia.cms.core.Channel;
  import info.magnolia.context.Context;
  import info.magnolia.context.MgnlContext;
  import info.magnolia.context.WebContext;
  import info.magnolia.objectfactory.annotation.LazySingleton;
  import info.magnolia.objectfactory.annotation.LocalScoped;
  import info.magnolia.objectfactory.annotation.SessionScoped;
  
  import javax.servlet.http.HttpServletRequest;
  import javax.servlet.http.HttpServletResponse;
  import javax.servlet.http.HttpSession;
  
  import com.google.inject.Provider;
  
  /**
   * Registers request and session scopes and providers for accessing MgnlContext.
   */
  public class GuiceContextAndScopesConfigurer extends AbstractGuiceComponentConfigurer {
  
      @Override
      protected void configure() {
  
          // We don't need to register these providers at every level, would be enough to do it in the top parent
          bind(Context.class).toProvider(new Provider<Context>() {
              @Override
              public Context get() {
                  return MgnlContext.getInstance();
              }
          });
          bind(WebContext.class).toProvider(new Provider<WebContext>() {
              @Override
              public WebContext get() {
                  return MgnlContext.getWebContextOrNull();
              }
          });
          bind(AggregationState.class).toProvider(new Provider<AggregationState>() {
              @Override
              public AggregationState get() {
                  final WebContext webContext = MgnlContext.getWebContextOrNull();
                  return webContext == null ? null : webContext.getAggregationState();
              }
          });
          bind(Channel.class).toProvider(new Provider<Channel>() {
              @Override
              public Channel get() {
                  final WebContext webContext = MgnlContext.getWebContextOrNull();
                  return webContext == null ? null : webContext.getAggregationState().getChannel();
              }
          });
          bind(HttpSession.class).toProvider(new Provider<HttpSession>() {
              @Override
              public HttpSession get() {
                  final WebContext webContext = MgnlContext.getWebContextOrNull();
                  return webContext == null ? null : webContext.getRequest().getSession();
              }
          });
          bind(HttpServletRequest.class).toProvider(new Provider<HttpServletRequest>() {
              @Override
              public HttpServletRequest get() {
                  final WebContext webContext = MgnlContext.getWebContextOrNull();
                  return webContext == null ? null : webContext.getRequest();
              }
          });
         bind(HttpServletResponse.class).toProvider(new Provider<HttpServletResponse>() {
             @Override
             public HttpServletResponse get() {
                 final WebContext webContext = MgnlContext.getWebContextOrNull();
                 return webContext == null ? null : webContext.getResponse();
             }
         });
 
         // But the scopes need to be registered at every level
         bindScope(LocalScoped.class, MagnoliaScopes.LOCAL);
         bindScope(SessionScoped.class, MagnoliaScopes.SESSION);
         bindScope(LazySingleton.class, MagnoliaScopes.LAZY_SINGLETON);
     }
 }