/*

* Copyright (c) 2001-2008 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description: 

*

*/

#include "cfileparser.h"

#include <S32FILE.H>

#include <VERSIT.H> 

CFileParser::CFileParser()

    {

    }

CFileParser::~CFileParser()

    {

    iFileServ.Close();    

    }

CFileParser* CFileParser::NewLC()

    {

    CFileParser* self = new (ELeave) CFileParser();

    CleanupStack::PushL(self);

    self->ConstructL();

    return self;

    }

CFileParser* CFileParser::NewL()

    {

    CFileParser* self = CFileParser::NewLC();

    CleanupStack::Pop(); // self;

    return self;

    }

void CFileParser::ConstructL()

    {

    iFileServ.Connect();

    iStart = false;

    SetMediaType(CFileParser::ENone);   //no  specific folder

    }

void CFileParser::SetMediaType(TMediaType aType)

    {

    iCurMediaType = aType;

    }

CFileParser::TMediaType CFileParser::GetMediaType()

    {

    return iCurMediaType;

    }

/*

 * aFileName - is the file to be parsed

 * this contain the text in the form

 * [photos]

 * --

 * --

 * [/photos]

 * [music]

 * --

 * --[/music]

 * [videos]

 * ---

 * --

 * [/videos]

 * ParseFile function takes such a file & parses the sections

 * and writes the photo filename to aPhotoFile,

 * music file names to aMusicFile &

 * video file names to aVideoFile

 * 

 */

void CFileParser::ParseFile( const TDesC& aFileName,const TDesC& aPhotoFile,const TDesC& aMusicFile,const TDesC& aVideoFile )

    {

    TFileText lineReader;

    TFileName name;

    RBuf8 fileName;

    RFile photoFile, musicFile, videoFile;

    //declare the start & end tags

    _LIT(KPhotoStart,"[photos]");

    _LIT(KMusicStart,"[music]");

    _LIT(KVideoStart,"[videos]");

    _LIT(KPhotoEnd,"[/photos]");

    _LIT(KMusicEnd,"[/music]");

    _LIT(KVideoEnd,"[/videos]");

    _LIT(KStartTag,"[%s]");

    _LIT(KEndTag,"[/%s]");

    TBuf<KMaxFileName> buf;

    name.Copy(aFileName);

    RFileReadStream readStream;

    readStream.PushL();

    User::LeaveIfError(readStream.Open(iFileServ, name, EFileRead));

    CLineReader* myReader = CLineReader::NewL(readStream);

    TInt aPos = 0;

    TInt aErr = 0;

    photoFile.Replace(iFileServ,aPhotoFile,EFileWrite);

    musicFile.Replace(iFileServ,aMusicFile,EFileWrite);

    videoFile.Replace(iFileServ,aVideoFile,EFileWrite);

    while(aErr!=KErrEof)

       {

          myReader->ReadLineL(aPos, aErr);

        // Do your parsing here ..          

          fileName.CreateL(KMaxFileName);

          buf.Copy(myReader->iBufPtr);          

          //compare buf with the start & end tags

          //if it is the start or end tag, dont write to the file          

          if( buf.Compare(KPhotoStart)== 0){  //photo tag start

              SetMediaType(CFileParser::EPhotos); 

              iStart = true;

          }

          else if( buf.Compare(KPhotoEnd)== 0){        //photo tag end

              SetMediaType(CFileParser::ENone);  

          }

          else if( buf.Compare(KMusicStart)== 0 ){       //music tag start

              SetMediaType(CFileParser::EMusic);

              iStart = true;

          }

          else if( buf.Compare(KMusicEnd)== 0){

              SetMediaType(CFileParser::ENone);       //music tag end

          }

          else if( buf.Compare(KVideoStart)== 0 ){

              SetMediaType(CFileParser::EVideos);  

              iStart = true;//video tag start

          }

          else if( buf.Compare(KVideoEnd)== 0 ){       

              SetMediaType(CFileParser::ENone);       //video tag end

          }

          else 

              {

                  fileName.Copy(buf);

                  switch( GetMediaType() )

                    {

                      case EPhotos:

                          {

                          if(!iStart){

                              photoFile.Write(_L8("\n"));

                          }

                          else {

                              iStart = false;

                          }

                          photoFile.Write(fileName);

                          }            

                              break;

                      case EMusic:

                          {

                          if(!iStart){

                              musicFile.Write(_L8("\n"));

                          }

                          else {

                              iStart = false;

                          }

                          musicFile.Write(fileName);

                          }

                              break;

                      case EVideos:

                          {

                          if(!iStart){

                              videoFile.Write(_L8("\n"));

                          }

                          else {

                               iStart = false;

                           }

                          videoFile.Write(fileName);

                          }

                              break;

                      default:

                              break;

                    }

              }

       }

    //close all file handles

    photoFile.Close();

    musicFile.Close();

    videoFile.Close();

    //close the filename rbuf

    fileName.Close();

    CleanupStack::PopAndDestroy();    

    delete myReader;

    }