/*

* Copyright (c) 2006-2009 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:  A class for TrackLog functionality

*

*/

#include "ctracklog.h"

#include "locationmanagerdebug.h"

#include "locationtraildefs.h"

#include "rtracklog.h"

#include <f32file.h>

#include <s32file.h>

#include <PathInfo.h>

#include <centralrepository.h>

#include <locationeventdef.h>

#include "cgpxconverterao.h"

EXPORT_C CTrackLog* CTrackLog::NewL()

	{

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

    CleanupStack::PushL( self );

    self->ConstructL();

    CleanupStack::Pop( self );

    return self;

	}

void CTrackLog::ConstructL()

	{

	LOG("CTrackLog::ConstructL start");

	iGpxConverter = CGpxConverterAO::NewL();

    TInt bufSize( 0 );

    TRAPD( err, ReadCenRepValueL( KTrackLogSizeKey, bufSize ));

    LOG1("CLocationManagerServer::ConstructL, cenrep bufsize value:%d", bufSize);

    if ( err != KErrNone )

    	{

        LOG1("CTrackLog::ConstructL, cenrep err:%d", err);

        iMaxBufferSize = KTrackLogBufSize;

    	}

    else

    	{

    	iMaxBufferSize = bufSize;

    	}

	User::LeaveIfError( iFs.Connect() );

	LOG("CTrackLog::ConstructL end");

	}

CTrackLog::CTrackLog() :

	iMaxBufferSize( KTrackLogBufSize ),

	iRecording( EFalse )

	{

	}

CTrackLog::~CTrackLog()

	{

	delete iGpxConverter;

	iFs.Close();

	}

EXPORT_C void CTrackLog::StartRecordingL(TItemId aId)

	{

	LOG("CTrackLog::StartRecording start");

	_LIT( KExtTmp, ".tmp" );

	_LIT( KExtGpx, ".gpx" );

	iTagId = aId;

	iFs.PrivatePath( iTmpFileName );

	TInt err;

	err = iFs.MkDirAll( iTmpFileName );

	if ( err != KErrAlreadyExists && err != KErrNone )

		{

		User::Leave( err );

		}

	TTime now( 0 );

	now.HomeTime();

	TDateTime datetime = now.DateTime();

	_LIT( KGpxFileName, "tracklog%d%02d%02d%02d%02d%02d" );

	HBufC* fileName = HBufC::NewL( KMaxFileName );

	CleanupStack::PushL( fileName );

	TPtr namePtr = fileName->Des();

	namePtr.Format(KGpxFileName, datetime.Year(), datetime.Month() + 1, datetime.Day() + 1,

			datetime.Hour(), datetime.Minute(), datetime.Second() );

	iTrackLogItemArray.Reset();

	iRecording = ETrue;

	iGpxFileName.Copy( namePtr );

	iTmpFileName.Append( iGpxFileName );

	iGpxFileName.Append( KExtGpx );

	iTmpFileName.Append( KExtTmp );	

	WriteBufferToFileL();

	CleanupStack::PopAndDestroy( fileName );

	LOG("CTrackLog::StartRecording end");

	}

EXPORT_C void CTrackLog::StopRecordingL()

	{

	LOG("CTrackLog::StopRecording start");

	// "flush" buffer

	WriteBufferToFileL();

	iTrackLogItemArray.Reset();

	// gpx converter will clean up boundaries

	iGpxConverter->AddToQueueL( iTmpFileName, iBoundaries );

	iBoundaries = NULL;

	iRecording = EFalse;

	LOG("CTrackLog::StopRecording end");

	}

EXPORT_C void CTrackLog::CancelRecording()

	{

	LOG("CTrackLog::CancelRecording start");

	iRecording = EFalse;

	iTrackLogItemArray.Reset();

	iFs.Delete( iTmpFileName );

	LOG("CTrackLog::CancelRecording end");

	}

void CTrackLog::LocationAdded( const TLocationTrailItem& aTrailItem, 

							   const TPositionSatelliteInfo& aSatellites )

	{

	LOG("CTrackLog::LocationAdded start");

	const TInt KMaxLat = 90;

	const TInt KMinLat = -90;

	const TInt KMaxLon = 180;

	const TInt KMinLon = -180;

	if ( !iBoundaries )

		{

		iBoundaries = new TBoundaries;	

		iBoundaries->minLatitude = KMaxLat;

		iBoundaries->maxLatitude = KMinLat;

		iBoundaries->minLongitude = KMaxLon;

		iBoundaries->maxLongitude = KMinLon;

		iBoundaries->distance = 0;

		}

	if ( IsRecording() )

		{

		TTrackLogItem newItem;

		newItem.iTimeStamp = aTrailItem.iTimeStamp;

		newItem.iLatitude = aTrailItem.iLocationData.iPosition.Latitude();

		newItem.iLongitude = aTrailItem.iLocationData.iPosition.Longitude();

		newItem.iAltitude = aTrailItem.iLocationData.iPosition.Altitude();

		newItem.iHdop = aSatellites.HorizontalDoP();

		newItem.iVdop = aSatellites.VerticalDoP();

		newItem.iCourse = aTrailItem.iLocationData.iCourse.Course();

		newItem.iQuality = aTrailItem.iLocationData.iQuality;

		newItem.iNumSatellites = aTrailItem.iLocationData.iSatellites;

		iTrackLogItemArray.Append(newItem);

		// Keep the latest satellite information safe.

		iSatelliteInfo = aSatellites;

		// Check if the GPS fix is lost or buffer is full.

		// If true, then write buffer to a file.

		if ( Math::IsNaN(newItem.iLatitude) || Math::IsNaN(newItem.iLongitude) ||

				iTrackLogItemArray.Count() > iMaxBufferSize )

			{

			LOG("CTrackLog::LocationAdded - buffer full, writing to file");

			TRAPD( err, WriteBufferToFileL() );

			if( err != KErrNone )

				{

				LOG1("WriteBufferToFileL leave error: %d", err);

				}

			iTrackLogItemArray.Reset();

			}

		if( !Math::IsNaN( newItem.iLatitude ) && !Math::IsNaN( newItem.iLongitude ) )

			{

			TReal32 distance;

			if ( !lastCoords )

				{

				lastCoords = new TCoordinate( aTrailItem.iLocationData.iPosition );

				}

			else

				{

				TLocality newCoords(aTrailItem.iLocationData.iPosition,

						aTrailItem.iLocationData.iPosition.HorizontalAccuracy()	);

				TInt err = newCoords.Distance(*lastCoords, distance);

				if ( err == KErrNone )

					{

					delete lastCoords;

					lastCoords = new TCoordinate( aTrailItem.iLocationData.iPosition );

					iBoundaries->distance += distance;

					}

				}

			iBoundaries->maxLatitude = Max( iBoundaries->maxLatitude, newItem.iLatitude );

			iBoundaries->minLatitude = Min( iBoundaries->minLatitude, newItem.iLatitude );

			iBoundaries->maxLongitude = Max( iBoundaries->maxLongitude, newItem.iLongitude );

			iBoundaries->minLongitude = Min( iBoundaries->minLongitude, newItem.iLongitude );

			}

		}

	LOG("CTrackLog::LocationAdded end");	

	}

void CTrackLog::WriteBufferToFileL()

	{

	LOG("CTrackLog::WriteBufferToFileL start");

	RFile64 file;

	RFileWriteStream writer;

	TInt err;

	err = file.Open( iFs, iTmpFileName, EFileRead );

	if ( err != KErrNone )

		{

		err = writer.Create( iFs, iTmpFileName, EFileWrite );

		if( err != KErrNone )

			{

			User::Leave( err );

			}

		writer << I64LOW( iTagId );

		writer << I64HIGH( iTagId );

		}

	else 

		{

		CleanupClosePushL( file );

		TInt64 endpos( 0 );

		file.Seek( ESeekEnd, endpos );

		CleanupStack::PopAndDestroy( &file );

		err = writer.Open( iFs, iTmpFileName, EFileWrite );

		if( err != KErrNone )

			{

			User::Leave( err );

			}

		writer.Sink()->SeekL( MStreamBuf::EWrite, TStreamPos( endpos ));

		}

	CleanupClosePushL( writer );

	TInt count = iTrackLogItemArray.Count();

	for( TInt i = 0; i < count; i++ )

		{

		writer << iTrackLogItemArray[i];

		}

	writer.CommitL();

	CleanupStack::PopAndDestroy( &writer );

	LOG("CTrackLog::WriteBufferToFileL end");

	}

EXPORT_C TInt CTrackLog::GetStatus( TBool& aRecording, TPositionSatelliteInfo& aFixQuality )

	{

	aFixQuality = iSatelliteInfo;

	aRecording = IsRecording();

	return KErrNone;

	}

EXPORT_C TBool CTrackLog::IsRecording()

	{

	return iRecording;

	}

EXPORT_C void CTrackLog::GetTrackLogName(TFileName& aFileName)

	{

	aFileName = iGpxFileName;

	}

EXPORT_C void CTrackLog::AddGpxObserver( MGpxConversionObserver* aObserver )

	{

	iGpxConverter->AddObserver( aObserver );

	}

EXPORT_C void CTrackLog::StartRecoveryL()

	{

	_LIT( KWildTmp, "*.tmp" );

	TInt err;

	CDir* files;

	TFileName *filename = new (ELeave) TFileName();

	TFindFile finder( iFs );

	iFs.PrivatePath( iTmpFileName );

	err = finder.FindWildByDir( KWildTmp, iTmpFileName, files);

	if ( err == KErrNone )

		{

		TInt count = files->Count();

		for( TInt i = 0; i < count; i++ )

			{

			filename->Copy(iTmpFileName);

			filename->Append((*files)[i].iName);

			TRAP_IGNORE( iGpxConverter->AddToQueueL( *filename, NULL ));

			}

		}

	delete filename;

	delete files;

	}

void CTrackLog::ReadCenRepValueL(TInt aKey, TInt& aValue)

	{

	LOG( "LocationManagerServer::ReadCenRepValueL(), begin" );

	CRepository* repository;

	repository = CRepository::NewLC( KRepositoryUid );

	User::LeaveIfError(repository->Get( aKey, aValue));

	CleanupStack::PopAndDestroy(repository);

    LOG( "LocationManagerServer::ReadCenRepValueL(), end" );   

	}

void TTrackLogItem::ExternalizeL( RWriteStream& aStream ) const

	{

	aStream.WriteReal64L( iLatitude );

	aStream.WriteReal64L( iLongitude );

	aStream.WriteReal32L( iAltitude );

	aStream.WriteReal32L( iCourse );	

	aStream.WriteReal32L( iQuality );	

	aStream.WriteUint32L( iNumSatellites );

	aStream.WriteReal32L( iHdop );

	aStream.WriteReal32L( iVdop );

	aStream.WriteUint32L( I64LOW( iTimeStamp.Int64() ));

	aStream.WriteUint32L( I64HIGH( iTimeStamp.Int64() ));

	}

void TTrackLogItem::InternalizeL( RReadStream& aStream )

	{

	iLatitude = aStream.ReadReal64L();

	iLongitude = aStream.ReadReal64L();

	iAltitude = aStream.ReadReal32L();

	TReal32 realVal;

	realVal = aStream.ReadReal32L();

	iCourse = realVal;

	realVal = aStream.ReadReal32L();

	iQuality = realVal;

	TUint32 satellites;

	satellites = aStream.ReadUint32L();

	iNumSatellites = satellites;

	realVal = aStream.ReadReal32L();

	iHdop = realVal;

	realVal = aStream.ReadReal32L();

	iVdop = realVal;

	TUint32 low( 0 );

	TUint32 high( 0 );

	low = aStream.ReadUint32L();

	high = aStream.ReadUint32L();

	TInt64 timestamp( 0 );

	timestamp = MAKE_TINT64( high, low );

	iTimeStamp = timestamp;

	}