// 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:

//

#if !defined(__INDEXCONTEXT_H__)

#define __INDEXCONTEXT_H__

#include <e32base.h>

#include <f32file.h>

#include <msvipc.h>

#include <barsread.h>

#include "msventryfreepool.h"

#include "msvindexadapter.h"

class CMsvServer;

class CMsvIndexAdapter;

//**********************************

// TMsvConfig

//**********************************

class TMsvConfig

/**

@internalComponent

@released

*/

	{

public:

	TDriveUnit iDrive;

	TUint iUniqueID;

	TBool iDebug;

// these are used to compare against the above so we know if we have to write the data.

	TDriveUnit iDriveAsLoaded;

	TUint iUniqueIDAsLoaded;

	TBool iDebugAsLoaded;

	};

//**********************************

// MMsvContextObserver

//**********************************

class MMsvContextObserver

/**

@internalComponent

@released

*/

	{

public:

	virtual void ContextComplete(TInt aError, TBool aRunMailInit)=0;

#if (defined SYMBIAN_MSGS_ENHANCED_REMOVABLE_MEDIA_SUPPORT)

	virtual void ChangeDriveComplete(TInt aError, TBool aRunMailInit, TDriveNumber aNewDrive)=0;

#endif

	};

//**********************************

// CMsvIndexContext

//**********************************

class CMsvIndexContext : public CActive

/**

@internalComponent

@released

*/

	{

public:

	static CMsvIndexContext* NewLC(CMsvServer& aServer, MMsvContextObserver& aObserver);

	static CMsvIndexContext* NewL(CMsvServer& aServer, MMsvContextObserver& aObserver);

	~CMsvIndexContext();

	inline const CMsvEntrySelection& Update() const;

	inline CMsvEntrySelection& Update();

	//

	inline const CMsvEntrySelection& Remove() const;

	inline CMsvEntrySelection& Remove();

	//

	inline TBool Initialized() const;

	inline void Initialized(TBool aInitialized);

	//

	inline const TDesC& MessageFolder() const;

	inline TMsvIndexLoadProgress::TIndexState State() const;

	inline const TMsvConfig& Config() const;

	const TMsvIndexLoadProgress& Progress();

	//

	const TDesC &IndexFileName() const;

	CPermanentFileStore &IndexStore();

	//

	void LocalizeStandardFoldersL();

	TBool GetAndClearIndexCorruptFlagL();

// Code changes for PREQ 557.

#if (defined SYMBIAN_MSGS_ENHANCED_REMOVABLE_MEDIA_SUPPORT)	

	void CreateIndexL();	

	void UpdateDriveStatusL(TUint aDriveIndex, TDriveState& aStoreStatus);

	TInt ChangeDrive(TUint aNewDriveIndex, TRequestStatus& aStatus);

	TInt ChangeDrive(TUint aNewDriveIndex, TBool aIsRemovePartial = ETrue, TBool aAsync = EFalse);

	void GetInPreparationIds(TUint aDriveId);	

	inline void MessageFolder(TUint aDriveId, TDes& aName) const;

#else

	TInt LoadStoreConfig(TBool aLoad);

	void CreateIndexL(TInt aDrive, TRequestStatus& aStatus);

	void CreateIndexL(TInt aDrive, TBool aSync);	

#endif			// #if (defined SYMBIAN_MSGS_ENHANCED_REMOVABLE_MEDIA_SUPPORT)	

	inline CMsvIndexAdapter*& IndexAdapter();

	inline CMsvIndexAdapter* IndexAdapter() const;

private:

	void ConstructL();

	CMsvIndexContext(CMsvServer& aServer, MMsvContextObserver& aObserver);

// Changes for PREQ 557.

#if (defined SYMBIAN_MSGS_ENHANCED_REMOVABLE_MEDIA_SUPPORT)

	void DoCreateIndexL();

	void IndexLoadingCompleted();

	void ChangeDriveCompleted(TInt aError);	

	void DoCreateServiceDirsL(TUint aDriveId);

	void CreateStoreDeleteFile(TDriveNumber aDriveNum);

	void CreateStandardEntriesFromResourceFileL(TUint aDriveId);

	void DoChangeDriveL(TUint aNewDriveIndex, TBool aIsRemovePartial, TDriveNumber& aNewDriveNumber);

#else

	void DoStoreConfigL();

	void DoCreateServiceDirsL();

	void CreateStoreDeleteFile();

	void IndexFailedToLoad(TInt aError);

	void IndexLoadingCompleted(TInt aError);

#endif

	void ResetAndCreateNewMailStoreL(TBool aDelete = ETrue);

	//

	void IndexLoaded(TMsvServerChangeNotificationType aNotification);

	//

	void DoCancel();

	void RunL();

private:

	CMsvEntrySelection* iUpdateEntryStreams;

	CMsvEntrySelection* iRemoveEntries;

	//

	CMsvServer& iServer;

	MMsvContextObserver& iObserver;

	//

	TFileName iMessageFolder;	

	TMsvIndexLoadProgress iProgress;

	TMsvConfig iConfig;

	TRequestStatus* iObserverStatus;

	TBool iSyncLoad;

	TBool iRunMailInit;

	TBool iInitialized;

	HBufC8* iBuf;

	CMsvIndexAdapter* iIndexAdapter;

#if (defined SYMBIAN_MESSAGESTORE_UNIT_TESTCODE)

	friend class CTestIndexContext;

	friend class CTestSearchSortDBadapter;

#endif

	};

inline const TDesC& CMsvIndexContext::MessageFolder() const

	{

	return iMessageFolder;

	}

inline const CMsvEntrySelection& CMsvIndexContext::Update() const

	{

	return *iUpdateEntryStreams;

	}

inline CMsvEntrySelection& CMsvIndexContext::Update()

	{

	return *iUpdateEntryStreams;

	}

inline const CMsvEntrySelection& CMsvIndexContext::Remove() const

	{

	return *iRemoveEntries;

	}

inline CMsvEntrySelection& CMsvIndexContext::Remove()

	{

	return *iRemoveEntries;

	}

inline TMsvIndexLoadProgress::TIndexState CMsvIndexContext::State() const

	{

	return iProgress.iState;

	}

inline const TMsvConfig& CMsvIndexContext::Config() const

	{

	return iConfig;

	}

inline TBool CMsvIndexContext::Initialized() const

	{

	return iInitialized;

	}

inline void CMsvIndexContext::Initialized(TBool aInitialized)

	{

	iInitialized=aInitialized;

	}

inline CMsvIndexAdapter*& CMsvIndexContext::IndexAdapter()

	{

	CMsvEntryFreePool::Instance()->FlushExcessMemory();

	return iIndexAdapter;

	}

inline CMsvIndexAdapter* CMsvIndexContext::IndexAdapter() const

	{

	CMsvEntryFreePool::Instance()->FlushExcessMemory();

	return iIndexAdapter;

	}

#if (defined SYMBIAN_MSGS_ENHANCED_REMOVABLE_MEDIA_SUPPORT)	

inline void CMsvIndexContext::MessageFolder(TUint aDriveId, TDes& aName) const

	{

	TParse parse;

	TDriveNumber driveNum;

	CMsvPreferredDriveList::GetDriveList()->GetDriveNumber(aDriveId, driveNum);

	TPtrC drive(TDriveUnit(driveNum).Name());

	parse.Set(KMsvDefaultIndexFile2(), &drive, NULL);

	aName = parse.DriveAndPath();

	}

#endif			// #if (defined SYMBIAN_MSGS_ENHANCED_REMOVABLE_MEDIA_SUPPORT)	

#endif