/*

* 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

 *

*/

#ifndef CTRACKLOG_H_

#define CTRACKLOG_H_

#include <f32file.h>

#include <lbs.h>

#include "clocationrecord.h"

#include <lbssatellite.h>

class MTrackLogObserver;

class CGpxConverterAO;

/**

 * class for recording position min/max values

 */

class TBoundaries

{

public:

	TReal64 minLatitude;

	TReal64 maxLatitude;

	TReal64 minLongitude;

	TReal64 maxLongitude;

	TReal32 distance;

};

/**

* Location trail item class.

*/

class TTrackLogItem

	{

public:

	TTime iTimeStamp;

	TReal64 iLatitude;

	TReal64 iLongitude;

	TReal32 iAltitude;

	TReal32 iHdop;

	TReal32 iVdop;

	TReal32 iCourse;

	TReal32 iQuality;

	TUint32 iNumSatellites;

	void ExternalizeL( RWriteStream& aStream ) const;

	void InternalizeL( RReadStream& aStream );

	};

class MGpxConversionObserver

	{

public:

	/**

	 * This method is used to notify about converted GPX files

	 */

	virtual void GpxFileCreated( const TDesC& aFileName, TItemId aTagId, TReal32 aLength,

			TTime aStart, TTime aEnd ) = 0;

	};    

class CTrackLog : public CBase, public MLocationAddObserver

	{

public:

	/**

	 * 2-phased constructor.

	 */

	IMPORT_C static CTrackLog* NewL();

	/**

	 * C++ destructor.

	 * @since S60 3.1

	 */

	IMPORT_C virtual ~CTrackLog();

	IMPORT_C TInt GetStatus( TBool& aRecording,	TPositionSatelliteInfo& aFixQuality );

	IMPORT_C TBool IsRecording();

	/**

	 * Initialize recording

	 */

	IMPORT_C void StartRecordingL(TItemId aId);

	/**

	 * Stop tracklog recording

	 */

	IMPORT_C void StopRecordingL();

	/**

	 * stop tracklog recording without saving gpx file

	 */

	IMPORT_C void CancelRecording();

	/**

	 * get tracklog file name

	 */

	IMPORT_C void GetTrackLogName(TFileName& aFileName);

	/*

	 * from MLocationAddObserver

	 */

	void LocationAdded( const TLocationTrailItem& aTrailItem, const TPositionSatelliteInfo& aSatellites );

	IMPORT_C void AddGpxObserver( MGpxConversionObserver* aObserver );

	IMPORT_C void StartRecoveryL();

	IMPORT_C TInt AddObserver( MTrackLogObserver* aObserver );

	IMPORT_C TInt RemoveObserver( MTrackLogObserver* aObserver );

private:

	/**

	 * C++ constructor.

	 */

	CTrackLog();

	/**

	 * 2nd phase constructor.

	 */

	void ConstructL();

	/**

	 * Write Tracklog data from buffer to temporary file

	 */

	void WriteBufferToFileL();

    /**

     * Read interval value from Central repository

     * @param aKey, Key to item

     * @param aValue, Read value

     */ 

    void ReadCenRepValueL(TInt aKey, TInt& aValue);

private:

	/**

	 * Array for storing tracklog items

	 */

	RArray<TTrackLogItem> iTrackLogItemArray;

	/**

	 * Array of track log observers.

	 */

	RPointerArray<MTrackLogObserver> iObservers;

	TInt iMaxBufferSize;

	TBool iRecording;

	TPositionSatelliteInfo iSatelliteInfo;

	TFileName iGpxFileName;

	TFileName iTmpFileName;

	TItemId iTagId;

	CGpxConverterAO* iGpxConverter;

	TBoundaries* iBoundaries;

	TCoordinate* lastCoords;

	RFs iFs;

	};

#endif /*CTRACKLOG_H_*/