/*

* Copyright (c) 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 <QFile>

#include <QTextStream>

#include <QDateTime>

#include "irqlogger.h"

// ============================================================================

// SymbianLogger Defenition

// ============================================================================

#if defined LOGGING_ENABLED && defined COMBINE_WITH_ENGINE_LOGGER

#include "irdebug.h"

void SymbianLogger::writeLog( const QString& aMsg )

{

    TPtrC tmpDesc(reinterpret_cast<const TUint16*>(aMsg.utf16()), aMsg.length());

    IRLOG_DEBUG_DESC( tmpDesc );

}

#else // LOGGING_ENABLED && COMBINE_WITH_ENGINE_LOGGER

void SymbianLogger::writeLog( const QString& aMsg )

{

    Q_UNUSED(aMsg);

}

#endif // LOGGING_ENABLED && COMBINE_WITH_ENGINE_LOGGER

// ============================================================================

// MethodLogger Defenition

// ============================================================================

#ifdef LOGGING_ENABLED

const char* KLogEnter = "--> %s";

const char* KLogExit = "<-- %s";

const char* KLogExitRet = "<-- %s, Returning %s";

const char* KLogExitException = "<-- %s, Exception raised";

MethodLogger::MethodLogger( const char* aFunction ) :

    iFunction( aFunction )

{

    QString msg;

    msg.sprintf( KLogEnter, iFunction );

    WRITELOG( msg );

}

MethodLogger::~MethodLogger()

{

    QString msg;

    if ( std::uncaught_exception() )

    {

        msg.sprintf( KLogExitException, iFunction );

        WRITELOG( msg );

    }

    else

    {

        msg.sprintf( KLogExit, iFunction );

        WRITELOG( msg );

    }

}

#else // LOGGING_ENABLED

MethodLogger::MethodLogger( const char* aFunction ) :

    iFunction( aFunction )

{

}

MethodLogger::~MethodLogger()

{

}

#endif // LOGGING_ENABLED

// ============================================================================

// FileLogger Defenition

// ============================================================================

QFile gDebugFile;

bool  gFilterByLogMarker = false;

#if defined LOGGING_ENABLED && defined TRACE_TO_FILE && !defined COMBINE_WITH_ENGINE_LOGGER

FileLogger::FileLogger(const QString& aFileName, bool aFilterByMarker)

{

    installMessageHandler( aFileName, aFilterByMarker );

}

FileLogger::~FileLogger()

{

    uninstallMessageHandler();

}

#else // LOGGING_ENABLED && TRACE_TO_FILE && !COMBINE_WITH_ENGINE_LOGGER

FileLogger::FileLogger(const QString& aFileName, bool aFilterByMarker)

{

    Q_UNUSED(aFileName);

    Q_UNUSED(aFilterByMarker);

}

FileLogger::~FileLogger()

{

}

#endif // LOGGING_ENABLED && TRACE_TO_FILE && !COMBINE_WITH_ENGINE_LOGGER

void FileLogger::installMessageHandler( const QString& aFileName, bool aFilterByMarker )

{

    gDebugFile.setFileName( aFileName );

    gFilterByLogMarker = aFilterByMarker;

    gDebugFile.open( QIODevice::Text | QIODevice::WriteOnly );

    if ( gDebugFile.isOpen() )

    {

        qInstallMsgHandler( FileLogger::handleMessage );

    }

}

void FileLogger::uninstallMessageHandler()

{

    if ( gDebugFile.isOpen() )

    {

        qInstallMsgHandler( 0 );

        gDebugFile.close();

    }

}

void FileLogger::handleMessage( QtMsgType aType, const char* aMsg )

{

    if ( aType == QtDebugMsg )

    {

        QString message( aMsg );

        if ( gFilterByLogMarker && message.contains( QString( KLogMarker ) ) )

        {

            QTextStream debugStream( &gDebugFile );

            QDateTime dateTime( QDateTime::currentDateTime() );            

            debugStream<<dateTime.toString("yyyy-MM-dd hh:mm:ss.zzz")<<" : "<<message<<endl;

        }

    }

}

// ============================================================================

// SIGNAL/SLOT CONNECTION CHECKER

// ============================================================================

bool connectAndTest( const QObject* aSender, const char* aSignal,

                            const QObject* aReceiver, const char* aMember,

                            Qt::ConnectionType aType )

{

    bool connected = QObject::connect( aSender, aSignal, aReceiver, aMember, aType );

    if ( !connected )

    {

        LOG( "Failed to make a signal-slot connection!" );

        LOG_FORMAT( "sender: %s", aSender->metaObject()->className() );

        LOG_FORMAT( "signal: %s", aSignal );

        LOG_FORMAT( "receiver: %s", aReceiver->metaObject()->className() );

        LOG_FORMAT( "slot: %s", aMember );

    }

    return connected;

}

bool connectAndAssert( const QObject* aSender, const char* aSignal,

                            const QObject* aReceiver, const char* aMember,

                            Qt::ConnectionType aType )

{

    bool connected = connectAndTest( aSender, aSignal, aReceiver, aMember, aType );

    Q_ASSERT( connected );

    return connected;

}