/*

* Copyright (c) 2010 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:  

*

*/

#ifndef CEMAILPLUGIN_H

#define CEMAILPLUGIN_H

#include <e32base.h>

#include <cindexingplugin.h>

#include <common.h>

#include <memailitemobserver.h>

class CSearchDocument;

class CCPixIndexer;

class QEmailFetcher;

class CEmailPlugin : public CIndexingPlugin, public MEmailItemObserver

{

public:

	static CEmailPlugin* NewL();

	static CEmailPlugin* NewLC();

	virtual ~CEmailPlugin();

	/**

	 * From CIndexingPlugin

	 */

	 void StartPluginL();

	 void StartHarvestingL(const TDesC& aQualifiedBaseAppClass);

	/**

	 * From MEmailItemObserver

	 */

	 void HandleDocumentL(const CSearchDocument* aSearchDocument, TCPixActionType aActionType);

	 /**

	  * From MEmailItemObserver

	  */ 

	 void HarvestingCompleted();

     void PausePluginL();

     void ResumePluginL();

	 /**

     * Gets the database observer class

     */

    CCPixIndexer* GetIndexer(); //SPB { return iIndexer; }

	 /**

     * MountL - Mount an IndexDB.

     * @aMedia drive to mount.

     * @aForceReharvesting to reharvest or not

     */

    void MountL(TDriveNumber aMedia, TBool aForceReharvesting=EFalse);

    /**

     * UnMount - Dismount a IndexDB for drive aMedia.

     * @aMedia drive to unmount.

     * @aUndefineAsWell if ETrue then undefine the volume as well

     * 

     */

    void UnMount(TDriveNumber aMedia, TBool aUndefineAsWell = ETrue);

    /**

     * FormBaseAppClass - constructs a baseAppClass for the given drive.

     * @aMedia drive to form the baseAppClass for.

     * @aBaseAppClass return descriptor containing the baseAppClass

     * returns KErrNone on success or a standard error code

     */

    static TInt FormBaseAppClass(TDriveNumber aMedia, TDes& aBaseAppClass);

    /**

     * DatabasePathL - Forms IndexDb path.

     * @param aMedia - The drive for which the path should be constructed.

     * returns pointer to the IndexDb path.

     */

    HBufC* DatabasePathLC(TDriveNumber aMedia);

public:

	/*

	 * Notifies the indexing manager of completed harvesting, called by CMessageHarvester

	 */

	void HarvestingCompleted(TInt aError);

protected:

	CEmailPlugin();

	void ConstructL();

private:

    // CPix indexer 

    CCPixIndexer* iIndexer[EDriveZ+1]; // EDriveZ enum value is 25, so add 1.

    //Currently used Drive by messaging application it is Default drive

    TInt     iCurrentDrive;

    // File system session

    RFs iFs;

    //Email fecther from Qt Module

    QEmailFetcher* iQEmailFetcher;

    //for unit testing.

    #ifdef HARVESTERPLUGINTESTER_FRIEND

        friend class CHarvesterPluginTester;

    #endif

#ifdef __PERFORMANCE_DATA

    TTime iStartTime;

    TTime iCompleteTime;

    void UpdatePerformaceDataL();

    void UpdatePerformaceDataL(TMsvSessionEvent);

#endif

};

#endif // CEMAILPLUGIN_H