// Copyright (c) 1999-2009 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 "VWSDEBUG.H"

#ifdef __DO_LOGGING__

//#define VIEWSRV_SHOW_TRACE		

#ifdef VIEWSRV_SHOW_TRACE

void ShowTrace(TRefByValue<const TDesC> aFmt,...)

	{

	RDebug::Print(aFmt);

	}

#else

void ShowTrace(TRefByValue<const TDesC> /*aFmt*/,...)

	{

	}

#endif

//

// Constants.

//

const TInt KMaxTraceLength=256;

//

// CVwsLog.

//

void CVwsLog::StartLogL()

	{

	CVwsLog* self=new(ELeave) CVwsLog;

	TRAPD(err,self->ConstructL());

	if (!err)

		{

		Dll::SetTls(self);

		CVwsLog::Log(CVwsLog::ENormal,_L("View Server log created"));

		}

	}

void CVwsLog::ShutdownLog()

	{

	CVwsLog::Log(CVwsLog::ENormal,_L("View Server log shutdown"));

	CVwsLog* self=STATIC_CAST(CVwsLog*,Dll::Tls());

	ASSERT(self);

	delete self;

	Dll::SetTls(NULL);

	}

CVwsLog::CVwsLog() : iType(EFile),iLevel(ELoud)

	{

	}

CVwsLog::~CVwsLog()

	{

	iLogFile.Close();

	iFs.Close();

	}

void CVwsLog::ConstructL()

	{

	TUint att;

	RBuf dataLogs;

	RBuf viewLog;

	RBuf viewLogOne;

	RBuf viewLogTwo;

	TChar sysDrive = RFs::GetSystemDriveChar();

	_LIT(KDataLogs,":\\Data\\logs");

	_LIT(KlogView,":\\Data\\logs\\viewsrv.txt");

	_LIT(KLogViewOne,":\\Data\\logs\\viewsrv1.txt");

	_LIT(KLogViewTwo,":\\Data\\logs\\viewsrv2.txt");

	TInt maxSizeofFileName = KDataLogs().Length() + 1;

	dataLogs.CreateL(maxSizeofFileName);

	dataLogs.CleanupClosePushL();

	dataLogs.Append(sysDrive);

	dataLogs.Append(KDataLogs());

	maxSizeofFileName = KlogView().Length() + 1;

	viewLog.CreateL(maxSizeofFileName);

	viewLog.CleanupClosePushL();

	viewLog.Append(sysDrive);

	viewLog.Append(KlogView());

	maxSizeofFileName = KLogViewOne().Length() + 1;

	viewLogOne.CreateL(maxSizeofFileName);

	viewLogOne.CleanupClosePushL();

	viewLogOne.Append(sysDrive);

	viewLogOne.Append(KLogViewOne());

	maxSizeofFileName = KLogViewTwo().Length() + 1;

	viewLogTwo.CreateL(maxSizeofFileName);

	viewLogTwo.CleanupClosePushL();

	viewLogTwo.Append(sysDrive);

	viewLogTwo.Append(KLogViewTwo());

	// If the log file can be opened,logging is active

	if (iFs.Connect() == KErrNone && iFs.Att(dataLogs,att) == KErrNone)

		{

		// Make a copy of previous log file

		iFs.Delete(viewLogTwo);

		iFs.Rename(viewLogOne,viewLogTwo);

		iFs.Rename(viewLog,viewLogOne);

		if (iLogFile.Replace(iFs, viewLog, EFileShareAny | EFileWrite | EFileStreamText) == KErrNone)

			{

			iActive = ETrue;

			}

		TUint16 feffInt=0xFEFF;

		User::LeaveIfError(iLogFile.Write(TPtrC8((TUint8 *)&feffInt,2)));

		iEol16=TPtrC16((TUint16 *)_S("\r\n"));

		iEol.Set((TUint8 *)iEol16.Ptr(),iEol16.Size());

		}

	CleanupStack::PopAndDestroy(&viewLogTwo);

	CleanupStack::PopAndDestroy(&viewLogOne);

	CleanupStack::PopAndDestroy(&viewLog);

	CleanupStack::PopAndDestroy(&dataLogs);

	}

void CVwsLog::SetLevel(TLevel aLogLevel)

	{

	iLevel=aLogLevel;

	}

void CVwsLog::SetType(TLogType aType)

	{

	iType=aType;

	}

void CVwsLog::Log(TLevel aLogLevel,TRefByValue<const TDesC> aFmt,...)

	{

	CVwsLog* self=STATIC_CAST(CVwsLog*,Dll::Tls());

	ASSERT(self);

	VA_LIST list;

	VA_START(list,aFmt);

	TBuf<KMaxTraceLength> buf;

	buf.FormatList(aFmt,list);

	self->DoLog(aLogLevel,buf);

	}

void CVwsLog::DoLog(TLevel aLogLevel,const TDesC& aOutput)

	{

	if (aLogLevel>iLevel)

		{

		return;

		}

	switch (iType)

		{

		case EFile:

			LogToFile(aLogLevel,aOutput);

			break;

		case ERDebug:

			LogToRDebug(aOutput);

			break;

		case EBoth:

			LogToFile(aLogLevel,aOutput);

			LogToRDebug(aOutput);

			break;

		case ENeither:

			break;

		}

	}

void CVwsLog::LogToFile(TLevel aLogLevel,const TDesC& aOutput)

	{

	if (iActive)

		{

		for (TInt ii=0;ii<aLogLevel;ii++)

			{

			TUint16 tab=0x0009;

			iLogFile.Write(TPtrC8((TUint8*)&tab,2));

			}

		iLogFile.Write(TPtrC8((TUint8 *)aOutput.Ptr(),aOutput.Size()));

		iLogFile.Write(iEol);

		iLogFile.Flush();

		}

	}

void CVwsLog::LogToRDebug(const TDesC& aOutput)

	{

	TBuf<KMaxTraceLength> buf;

	buf.Insert(0,_L("VIEWSRV: "));

	buf.Append(aOutput);

	ShowTrace(buf);

	}

#endif