/*
    * Copyright (c) 2002-2022, City of 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.portal.service.file.implementation;
  
  import java.io.ByteArrayInputStream;
  import java.io.IOException;
  import java.io.InputStream;
  import java.util.Map;
  
  import javax.servlet.http.HttpServletRequest;
  
  import org.apache.commons.fileupload.FileItem;
  import org.apache.commons.io.IOUtils;
  import org.apache.commons.lang3.StringUtils;
  
  import fr.paris.lutece.api.user.User;
  import fr.paris.lutece.portal.business.file.File;
  import fr.paris.lutece.portal.business.file.FileHome;
  import fr.paris.lutece.portal.business.physicalfile.PhysicalFile;
  import fr.paris.lutece.portal.business.physicalfile.PhysicalFileHome;
  import fr.paris.lutece.portal.service.admin.AccessDeniedException;
  import fr.paris.lutece.portal.service.admin.AdminAuthenticationService;
  import fr.paris.lutece.portal.service.file.ExpiredLinkException;
  import fr.paris.lutece.portal.service.file.FileService;
  import fr.paris.lutece.portal.service.file.IFileDownloadUrlService;
  import fr.paris.lutece.portal.service.file.IFileRBACService;
  import fr.paris.lutece.portal.service.file.IFileStoreServiceProvider;
  import fr.paris.lutece.portal.service.security.SecurityService;
  import fr.paris.lutece.portal.service.security.UserNotSignedException;
  import fr.paris.lutece.portal.service.util.AppException;
  
  /**
   * 
   * DatabaseBlobStoreService.
   * 
   */
  public class LocalDatabaseFileService implements IFileStoreServiceProvider
  {
      private static final long serialVersionUID = 1L;
  
      private IFileDownloadUrlService _fileDownloadUrlService;
      private IFileRBACService _fileRBACService;
      private String _strName;
      private boolean _bDefault;
  
      /**
       * init
       * 
       * @param _fileDownloadUrlService
       * @param _fileRBACService
       */
      public LocalDatabaseFileService( IFileDownloadUrlService _fileDownloadUrlService, IFileRBACService _fileRBACService )
      {
          this._fileDownloadUrlService = _fileDownloadUrlService;
          this._fileRBACService = _fileRBACService;
      }
  
      /**
       * get the FileRBACService
       * 
       * @return the FileRBACService
       */
      public IFileRBACService getFileRBACService( )
      {
          return _fileRBACService;
      }
  
      /**
      * set the FileRBACService
      * 
      * @param fileRBACService
      */
     public void setFileRBACService( IFileRBACService fileRBACService )
     {
         this._fileRBACService = fileRBACService;
     }
 
     /**
      * Get the downloadService
      * 
      * @return the downloadService
      */
     public IFileDownloadUrlService getDownloadUrlService( )
     {
         return _fileDownloadUrlService;
     }
 
     /**
      * Sets the downloadService
      * 
      * @param downloadUrlService
      *            downloadService
      */
     public void setDownloadUrlService( IFileDownloadUrlService downloadUrlService )
     {
         _fileDownloadUrlService = downloadUrlService;
     }
 
     /**
      * {@inheritDoc}
      */
     @Override
     public String getName( )
     {
         return _strName;
     }
 
     /**
      * {@inheritDoc}
      */
     @Override
     public void delete( String strKey )
     {
         int nfileId = Integer.parseInt( strKey );
         FileHome.remove( nfileId );
 
     }
 
     /**
      * {@inheritDoc}
      */
     @Override
     public File getFile( String strKey )
     {
         return getFile( strKey, true );
     }
 
     /**
      * {@inheritDoc}
      */
     @Override
     public File getFileMetaData( String strKey )
     {
         return getFile( strKey, false );
     }
 
     /**
      * get file from database
      * 
      * @param strKey
      * @param withPhysicalFile
      * 
      * @return the file with the physical file content if withPhysicalFile is true, null otherwise
      */
     public File getFile( String strKey, boolean withPhysicalFile )
     {
         if ( StringUtils.isNotBlank( strKey ) )
         {
             int nfileId = Integer.parseInt( strKey );
             
             // get meta data
             File file = FileHome.findByPrimaryKey( nfileId );
 
             // check if the file exists and was inserted with this provider
             if ( file == null 
             		|| ( file.getOrigin( ) == null && getName( ) != null ) 
             		|| ( file.getOrigin( ) != null && !file.getOrigin( ).equals( getName( ) ) ) )
             {
             	return null;
             }
             
             if ( withPhysicalFile )
             {
                 // get file content
                 file.setPhysicalFile( PhysicalFileHome.findByPrimaryKey( file.getPhysicalFile( ).getIdPhysicalFile( ) ) );
             }
             
             return file;
         }
 
         return null;
     }
 
     /**
      * {@inheritDoc}
      */
     @Override
     public String storeBytes( byte [ ] blob )
     {
         File/portal/business/file/File.html#File">File file = new File( );
         PhysicalFile/physicalfile/PhysicalFile.html#PhysicalFile">PhysicalFile physicalFile = new PhysicalFile( );
         physicalFile.setValue( blob );
         file.setPhysicalFile( physicalFile );
         file.setOrigin( getName( ) );
         
         int nFileId = FileHome.create( file );
 
         return String.valueOf( nFileId );
     }
 
     /**
      * {@inheritDoc}
      */
     @Override
     public String storeInputStream( InputStream inputStream )
     {
         File/portal/business/file/File.html#File">File file = new File( );
         PhysicalFile/physicalfile/PhysicalFile.html#PhysicalFile">PhysicalFile physicalFile = new PhysicalFile( );
 
         byte [ ] buffer;
 
         try
         {
             buffer = new byte [ inputStream.available( )];
         }
         catch( IOException ex )
         {
             throw new AppException( ex.getMessage( ), ex );
         }
 
         physicalFile.setValue( buffer );
         file.setPhysicalFile( physicalFile );
 
         file.setOrigin( getName( ) );
 
         int nFileId = FileHome.create( file );
 
         return String.valueOf( nFileId );
     }
 
     /**
      * {@inheritDoc}
      */
     @Override
     public String storeFileItem( FileItem fileItem )
     {
 
         File/portal/business/file/File.html#File">File file = new File( );
         file.setTitle( fileItem.getName( ) );
         file.setSize( (int) fileItem.getSize( ) );
         file.setMimeType( fileItem.getContentType( ) );
 
         file.setOrigin( getName( ) );
         
         PhysicalFile/physicalfile/PhysicalFile.html#PhysicalFile">PhysicalFile physicalFile = new PhysicalFile( );
 
         byte [ ] byteArray;
 
         try
         {
             byteArray = IOUtils.toByteArray( fileItem.getInputStream( ) );
         }
         catch( IOException ex )
         {
             throw new AppException( ex.getMessage( ), ex );
         }
 
         physicalFile.setValue( byteArray );
         file.setPhysicalFile( physicalFile );
 
         int nFileId = FileHome.create( file );
 
         return String.valueOf( nFileId );
     }
 
     /**
      * {@inheritDoc}
      */
     @Override
     public String storeFile( File file )
     {
         file.setOrigin( getName( ) );
         
         int nFileId = FileHome.create( file );
 
         return String.valueOf( nFileId );
     }
 
     public void setDefault( boolean bDefault )
     {
         this._bDefault = bDefault;
     }
 
     public void setName( String strName )
     {
         _strName = strName;
     }
 
     /**
      * {@inheritDoc}
      */
     @Override
     public boolean isDefault( )
     {
         return _bDefault;
     }
 
     /**
      * {@inheritDoc}
      */
     @Override
     public InputStream getInputStream( String strKey )
     {
 
         File file = getFile( strKey );
 
         return new ByteArrayInputStream( file.getPhysicalFile( ).getValue( ) );
     }
 
     /**
      * {@inheritDoc}
      */
     @Override
     public String getFileDownloadUrlFO( String strKey )
     {
         return _fileDownloadUrlService.getFileDownloadUrlFO( strKey, getName( ) );
     }
 
     /**
      * {@inheritDoc}
      */
     @Override
     public String getFileDownloadUrlFO( String strKey, Map<String, String> additionnalData )
     {
         return _fileDownloadUrlService.getFileDownloadUrlFO( strKey, additionnalData, getName( ) );
     }
 
     /**
      * {@inheritDoc}
      */
     @Override
     public String getFileDownloadUrlBO( String strKey )
     {
         return _fileDownloadUrlService.getFileDownloadUrlBO( strKey, getName( ) );
     }
 
     /**
      * {@inheritDoc}
      */
     @Override
     public String getFileDownloadUrlBO( String strKey, Map<String, String> additionnalData )
     {
         return _fileDownloadUrlService.getFileDownloadUrlBO( strKey, additionnalData, getName( ) );
     }
 
     /**
      * {@inheritDoc}
      */
     @Override
     public void checkAccessRights( Map<String, String> fileData, User user ) throws AccessDeniedException, UserNotSignedException
     {
         if ( _fileRBACService != null )
         {
             _fileRBACService.checkAccessRights( fileData, user );
         }
     }
 
     /**
      * {@inheritDoc}
      */
     @Override
     public void checkLinkValidity( Map<String, String> fileData ) throws ExpiredLinkException
     {
         _fileDownloadUrlService.checkLinkValidity( fileData );
     }
 
     /**
      * {@inheritDoc}
      */
     @Override
     public File getFileFromRequestBO( HttpServletRequest request ) throws AccessDeniedException, ExpiredLinkException, UserNotSignedException
     {
         Map<String, String> fileData = _fileDownloadUrlService.getRequestDataBO( request );
 
         // check access rights
         checkAccessRights( fileData, AdminAuthenticationService.getInstance( ).getRegisteredUser( request ) );
 
         // check validity
         checkLinkValidity( fileData );
 
         String strFileId = fileData.get( FileService.PARAMETER_FILE_ID );
 
         return getFile( strFileId );
     }
 
     /**
      * {@inheritDoc}
      */
     @Override
     public File getFileFromRequestFO( HttpServletRequest request ) throws AccessDeniedException, ExpiredLinkException, UserNotSignedException
     {
 
         Map<String, String> fileData = _fileDownloadUrlService.getRequestDataFO( request );
 
         // check access rights
         checkAccessRights( fileData, SecurityService.getInstance( ).getRegisteredUser( request ) );
 
         // check validity
         checkLinkValidity( fileData );
 
         String strFileId = fileData.get( FileService.PARAMETER_FILE_ID );
 
         return getFile( strFileId );
     }
 }