/*

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

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of the License "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:  Gesture helper implementation

*

*/

#include "filelogger.h"

#include <bautils.h>

#include <pathinfo.h>

_LIT(KLogFolder, "logs\\");

_LIT(KLogFileExt, ".log");

_LIT8(KLineEnd, "\r\n");

const TInt KTimeRecordSize = 25;

_LIT8(KTimeFormat,"%04d-%02d-%02d %02d:%02d:%02d.%03d ");

_LIT8(KLogStart, "--== New %S log ==--\r\n");

CFileLogger::CFileLogger()

{

}

TBool CFileLogger::Construct()

{

    TInt err = iFs.Connect();

    if (!err)

    {

        TFileName logFileName;

        err = !GetLogFileNameWithoutExt(logFileName);

        if(!err)

        {

            logFileName.Append(KLogFileExt);

            err = iFile.Create(iFs, logFileName, EFileShareAny | EFileWrite);

            if(!err)

            {

                TInt pos(0);

                iFile.Seek(ESeekEnd, pos);

                TBuf8<KMaxFullName> appName;

                appName.Copy(BaflUtils::ExtractAppNameFromFullName(RThread().FullName()));

                iLogBuffer.AppendFormat(KLogStart, &appName);

                err = iFile.Write(iLogBuffer);

            }

        }

    }

    return (!err);

}

CFileLogger* CFileLogger::Logger()

{

    CFileLogger* logger = (CFileLogger*)Dll::Tls();

    if (!logger)

    {

        logger = new CFileLogger;

        if (logger)

        {

            if (logger->Construct())

            {

                Dll::SetTls(logger);

            }

            else

            {

                delete logger;

                logger = NULL;

            }

        }

    }

    return logger;

}

void CFileLogger::Close()

{

    delete (CFileLogger*)Dll::Tls();

    Dll::FreeTls();

}

CFileLogger::~CFileLogger()

{

    iFile.Close();

    iFs.Close();

}

TBool CFileLogger::GetLogFileNameWithoutExt(TDes& aFileName)

{

    TFileName path = PathInfo::MemoryCardRootPath() ;

    path.Append(PathInfo::OthersPath()) ;   // Put the log in the "Others" directory

    aFileName.Append(path);

    aFileName.Append(KLogFolder);

    TBool res = BaflUtils::FolderExists(iFs, aFileName);

    if (!res)

    {

        aFileName.Zero();

        aFileName.Append(path) ; // put it then directly to Others folder

        res = ETrue ;

    }

    TPtrC fileName(BaflUtils::ExtractAppNameFromFullName(RThread().FullName()));

    aFileName.Append(fileName);

    TTime time;

    time.HomeTime();

    TDateTime dateTime;

    dateTime = time.DateTime();

    // add timestamp to the name (then one has to clear them manually)

    aFileName.AppendNum(dateTime.Month()+1) ;

    aFileName.AppendNum(dateTime.Day()+1) ;

    aFileName.AppendNum(dateTime.Hour()) ;

    aFileName.AppendNum(dateTime.Minute()) ;

    aFileName.AppendNum(dateTime.Second()) ;

    return res;

}

void CFileLogger::Write(const TDesC8& aText)

{

    CFileLogger* logger = Logger();

    if(logger)

    {

        logger->iLogBuffer.Copy(aText);

        logger->DoWrite();

    }

}

void CFileLogger::Write(const TDesC16& aText)

{

    CFileLogger* logger = Logger();

    if(logger)

    {

        logger->iLogBuffer.Copy(aText);

        logger->DoWrite();

    }

}

void CFileLogger::Write(TRefByValue<const TDesC8> aFmt,...)

{

    CFileLogger* logger = Logger();

    if (logger)

    {

        VA_LIST list;

        VA_START(list, aFmt);

        logger->iLogBuffer.FormatList(aFmt, list);

        logger->DoWrite();

        VA_END(list);

    }

}

void CFileLogger::DoWrite()

{

    if(iFile.SubSessionHandle())

    {

        TTime time;

        time.HomeTime();

        TDateTime dateTime;

        dateTime = time.DateTime();

        TBuf8<KTimeRecordSize> timeRecord;

        timeRecord.Format(KTimeFormat, dateTime.Year(), dateTime.Month()+1, dateTime.Day()+1, 

                          dateTime.Hour(), dateTime.Minute(), dateTime.Second(), 

                          dateTime.MicroSecond()/1000);

        iLogBuffer.Insert(0, timeRecord);

        iLogBuffer.Append(KLineEnd);

        iFile.Write(iLogBuffer);

    }

}

void CFileLogger::DoFlush()

{

    if(iFile.SubSessionHandle())

    {

        iFile.Flush();

    }

}

void CFileLogger::Flush()

{

    CFileLogger* logger = Logger();

    if (logger)

    {

        logger->DoFlush() ;

    }

}