// Copyright (c) 2002-2009 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:

//

/**

 @file

 @internalComponent 

*/

#ifndef __AGNVERSIT_H__

#define __AGNVERSIT_H__

#include <e32base.h>

#include <e32std.h>

#include <vcal.h>

#include <tz.h>

#include <caldataexchange.h>

#include "agmvcal.h"

class TTzRule;

class CAgnVCalConverter;

class CCalImportExportActive : public CActive 

	{

public:

	CCalImportExportActive(CAgnVCalConverter& aConverter);

	~CCalImportExportActive();

	void Start();

	// from CActive

	void RunL();

	void DoCancel();

	TInt RunError(TInt aError);

private:

	CAgnVCalConverter& iConverter;

	};

class CAgnVCalConverter : public CAgnVersit

	{

public:

	enum TState

		{

		EIdle,

		EImporting,

		EExporting,

		};

	static CAgnVCalConverter* NewL();

//from MAgnVersit

	void ImportVCalL(TInt aFlags, RReadStream& aReadStream, RPointerArray<CCalEntry>& aEntryArray);

	void ExportVCalL(RWriteStream& aWriteStream, const RPointerArray<CCalEntry>& aEntryArray, const Versit::TVersitCharSet aCharSet);

	~CAgnVCalConverter();

	void ImportVCalAsyncL(TInt aFlags, RReadStream& aReadStream, RPointerArray<CCalEntry>& aEntryArray, MCalDataExchangeCallBack& aObserver);

	void ExportVCalAsyncL(RWriteStream& aWriteStream, RPointerArray<CCalEntry>& aCalEntryArray, MCalDataExchangeCallBack& aObserver, const Versit::TVersitCharSet aCharSet);

//To be called by CCalImportExportActive

	void NextExportStepL();

	void NextImportStepL();

	void CancelImportExport(TInt aError = KErrNone);

	CAgnVCalConverter::TState AsyncState() const;

private:

	void ConstructL();

	CTzRules* ImportTzRulesL(CParserVCal& aCalParser) const;

	CTzRules* DaylightRulesL(CParserVCal& aCalParser, TTimeIntervalMinutes aStdOffset) const;

	TTzRule TzRuleL(TTimeIntervalMinutes aOldTzOffset, TTimeIntervalMinutes aNewTzOffset, TTime aStartTime, TTime aEndTime) const;

	TTimeIntervalMinutes StandardTimeOffsetL(CParserVCal& aCalParser) const;

	TBool ValidDaylightProperty(CParserProperty& aDaylightProperty) const;

	void ConvertEntryToVCalAndExportL(CParserVCal* aVcal, const RPointerArray<CCalEntry>& aEntryArray, RWriteStream& aWriteStream);

	void ExportEntryBySameTzL(RWriteStream& aWriteStream);

	void ExportEntryWithoutTzRuleL(RWriteStream& aWriteStream);

	void FindEntryWithoutTzRuleL(RPointerArray<CCalEntry>& aSameTzEntry);

	void FindSameTzEntryL(RPointerArray<CCalEntry>& aSameTzEntry);

	void CheckCompletion();

	void InitialiseSameTzEntryArrayL();

private:

	TBool iTzConnected;

	RTz iTzServer;

	// for asynchronous import / export

	MCalDataExchangeCallBack* 	iObserver;

	CCalImportExportActive*		iImportExportActive;

	RPointerArray<CCalEntry>* 	iEntryArray;		//Not owned

	RPointerArray<CCalEntry>* 	iSametzEntries;		//Not owned. The entries with same tz rule or do have tz rules

	RPointerArray<CParserVCal>* iVCalArray;			//Array of vCal used when importing asynchronously. 

	RArray<TInt> 				iEntryIndexToExport;//Each of its element is the index of the entries in the array of iEntryArray

	CVCalToAgendaEntryConverter* 	iImportConverter;

	CAgendaEntryToVCalConverter* 	iExportConverter;

	Versit::TVersitCharSet 			iCharSet;

	RWriteStream* 	iWriteStream;

	CParserVCal* 	iVCal;

	TState 			iAsyncState;

	TInt 			iTotalNumEntry;		//The number of entries

	TInt 			iTotalCounter;		//The counter out of total entries

	TInt 			iSameTzCounter;		//The counter out of number of entries with the particular tz

	TInt 			iMaxNumEntryInStep;	//The maxum number of entries to import\export in one step

	};

/**

@internalComponent

@released 

*/

enum TAgnVersitPanic

	{

	EAgnVersitPanicNotNull,

	EAgnVersitPanicNoEntryArray,

	EAgnVersitPanicNoAAlarmProps,

	EAgnVersitPanicWrongTimeType,

	EAgnVersitWrongAttribute,

	EAgnVersitPanicWrongArgument,

	EAgnVersitPanicImportExportFailure

	};

extern void Panic(TAgnVersitPanic aPanic);

#endif