/*
    * Copyright (c) 2002-2016, Mairie de Paris
    * All rights reserved.
    *
    * Redistribution and use in source and binary forms, with or without
    * modification, are permitted provided that the following conditions
    * are met:
    *
    *  1. Redistributions of source code must retain the above copyright notice
   *     and the following disclaimer.
   *
   *  2. Redistributions in binary form must reproduce the above copyright notice
   *     and the following disclaimer in the documentation and/or other materials
   *     provided with the distribution.
   *
   *  3. Neither the name of 'Mairie de Paris' nor 'Lutece' nor the names of its
   *     contributors may be used to endorse or promote products derived from
   *     this software without specific prior written permission.
   *
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
   * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
   * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   * POSSIBILITY OF SUCH DAMAGE.
   *
   * License 1.0
   */
  package fr.paris.lutece.plugins.avatarserver.web;
  
  import fr.paris.lutece.plugins.avatarserver.business.Avatar;
  import fr.paris.lutece.plugins.avatarserver.business.AvatarHome;
  import fr.paris.lutece.plugins.avatarserver.service.AvatarService;
  import fr.paris.lutece.plugins.avatarserver.service.HashService;
  import fr.paris.lutece.portal.service.security.LuteceUser;
  import fr.paris.lutece.portal.service.security.SecurityService;
  import fr.paris.lutece.portal.service.security.UserNotSignedException;
  import fr.paris.lutece.portal.service.util.AppPropertiesService;
  import fr.paris.lutece.portal.util.mvc.commons.annotations.Action;
  import fr.paris.lutece.portal.util.mvc.commons.annotations.View;
  import fr.paris.lutece.portal.util.mvc.xpage.MVCApplication;
  import fr.paris.lutece.portal.util.mvc.xpage.annotations.Controller;
  import fr.paris.lutece.portal.web.upload.MultipartHttpServletRequest;
  import fr.paris.lutece.portal.web.xpages.XPage;
  
  import org.apache.commons.fileupload.FileItem;
  
  import java.lang.reflect.InvocationTargetException;
  
  import java.util.Map;
  
  import javax.servlet.http.HttpServletRequest;
  
  /**
   * AvatarServer App
   */
  @Controller( xpageName = "avatarserver", pageTitleI18nKey = "avatarserver.xpage.pageTitle", pagePathI18nKey = "avatarserver.xpage.pagePath" )
  public class AvatarServerApp extends MVCApplication
  {
      private static final String TEMPLATE_AVATAR = "skin/plugins/avatarserver/update_avatar.html";
      private static final String MARK_AVATAR = "avatar";
      private static final String MARK_AVATAR_ID = "avatar_id";
      private static final String MARK_EMAIL = "email";
      private static final String MARK_BACK_URL = "url_back";
  
      // Views and actions
      private static final String VIEW_HOME = "home";
      private static final String ACTION_UPDATE_AVATAR = "updateAvatar";
  
      // Parameters
      private static final String PARAMETER_ID_AVATAR = "id_avatar";
      private static final String PARAMETER_IMAGE = "avatar_image";
      private static final String PROPERTY_URL_AFTER_UPDATE = "avatarserver.update_avatar.afterUpdateUrl";
      private static final String PROPERTY_BACK_URL = "avatarserver.update_avatar.backUrl";
      private static final String MESSAGE_MISSING_FILE = "avatarserver.xpage.message.missingFile";
  
      /**
       * Update avatar view
       * 
       * @param request
       *            The HTTP request
       * @return The XPage
       * @throws UserNotSignedException
       *             if the user is not signed
       * @throws IllegalAccessException
       *             if an error occurs
       * @throws IllegalArgumentException
       *             if an error occurs
       * @throws InvocationTargetException
       *             if an error occurs
       */
      @View( value = VIEW_HOME, defaultView = true )
      public XPage getUpdateAvatar( HttpServletRequest request ) throws UserNotSignedException, IllegalAccessException, IllegalArgumentException,
              InvocationTargetException
     {
         LuteceUser user = SecurityService.isAuthenticationEnable( ) ? SecurityService.getInstance( ).getRegisteredUser( request ) : null;
 
         if ( user == null )
         {
             throw new UserNotSignedException( );
         }
 
         String strEmail = user.getEmail( );
         String strHash = HashService.getHash( strEmail );
         Avatar avatar = AvatarHome.findByHash( strHash );
         String strBackUrl = AppPropertiesService.getProperty( PROPERTY_BACK_URL );
 
         Map<String, Object> model = getModel( );
 
         if ( avatar != null )
         {
             model.put( MARK_AVATAR_ID, avatar.getId( ) );
         }
 
         model.put( MARK_AVATAR, avatar );
         model.put( MARK_EMAIL, strEmail );
         model.put( MARK_BACK_URL, strBackUrl );
 
         return getXPage( TEMPLATE_AVATAR, request.getLocale( ), model );
     }
 
     /**
      * Do update avatar action
      * 
      * @param request
      *            The HTTP request
      * @return The next XPage
      * @throws UserNotSignedException
      *             if the user is not signed
      */
     @Action( ACTION_UPDATE_AVATAR )
     public XPage doUpdateAvatar( HttpServletRequest request ) throws UserNotSignedException
     {
         LuteceUser user = SecurityService.getInstance( ).getRegisteredUser( request );
 
         if ( user != null )
         {
             String strAvatarId = request.getParameter( PARAMETER_ID_AVATAR );
 
             MultipartHttpServletRequest multiPartRequest = (MultipartHttpServletRequest) request;
             FileItem imageSource = multiPartRequest.getFile( PARAMETER_IMAGE );
 
             if ( imageSource.getSize( ) == 0 )
             {
                 addError( MESSAGE_MISSING_FILE, request.getLocale( ) );
 
                 return redirectView( request, VIEW_HOME );
             }
 
             boolean bUpdate = ( strAvatarId != null );
 
             if ( bUpdate )
             {
                 Avatar avatar = AvatarHome.findByPrimaryKey( Integer.parseInt( strAvatarId ) );
                 avatar.setValue( imageSource.get( ) );
                 avatar.setMimeType( imageSource.getContentType( ) );
                 AvatarService.update( avatar );
             }
             else
             {
                 Avatar avatar = new Avatar( );
                 avatar.setEmail( user.getEmail( ) );
                 avatar.setValue( imageSource.get( ) );
                 avatar.setMimeType( imageSource.getContentType( ) );
                 AvatarService.create( avatar );
             }
         }
         else
         {
             throw new UserNotSignedException( );
         }
 
         String strAfterUpdateUrl = AppPropertiesService.getProperty( PROPERTY_URL_AFTER_UPDATE );
 
         return redirect( request, strAfterUpdateUrl );
     }
 }