/*

  * Copyright (c) 2002-2014, 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.captcha.modules.jcaptcha.service.sound;

 import fr.paris.lutece.portal.service.util.AppPathService;

 import java.io.File;

 import java.util.ArrayList;

 import java.util.List;

 /**

  *

  * @author lutecer

  *

  */

 public class LuteceBackgroundSoundMixerConfigurator

 {

     private static final String STRING_SLASH = "/";

     private static final String WAV_EXTENSION = ".wav";

     private static final String JCAPTCHA_SOUND_DIRECTORY = "jcaptcha.sound.directory";

     private float _attenuationValue;

     private File[] _backgroundSoundFiles = new File[0];

     /**

      *

      * @param attenuationValue the attenuation value

      * @param backGroundFileNames the backGround files Names

      */

     public LuteceBackgroundSoundMixerConfigurator( int attenuationValue, String... backGroundFileNames )

     {

         _attenuationValue = attenuationValue / 100f;

         String soundFolder = AppPathService.getPath( JCAPTCHA_SOUND_DIRECTORY );

         List<File> tempFileList = new ArrayList<File>(  );

         File soundFile;

         for ( int i = 0; i < backGroundFileNames.length; i++ )

         {

             soundFile = new File( soundFolder + STRING_SLASH + backGroundFileNames[i] + WAV_EXTENSION );

             if ( soundFile.exists(  ) )

             {

                 tempFileList.add( soundFile );

             }

         }

         _backgroundSoundFiles = (File[]) tempFileList.toArray( _backgroundSoundFiles );

     }

     /**

      *

      * @return the attenuation value

      */

     public float getAttenuationValue(  )

     {

         return _attenuationValue;

     }

     /**

      *

      * @return the random background file

      */

     public File getRandomBackgroundFile(  )

     {

         int randomFileInt = (int) Math.rint( _backgroundSoundFiles.length * Math.random(  ) );

         if ( randomFileInt >= _backgroundSoundFiles.length )

         {

             randomFileInt = _backgroundSoundFiles.length - 1;

         }

         return _backgroundSoundFiles[randomFileInt];

     }

 }