/*

* Copyright (c) 2002 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: 

*     Implements interface for Logs event

*

*/

#ifndef __Logs_Engine_CLogsEngine_H__

#define __Logs_Engine_CLogsEngine_H__

//  INCLUDES

#include <e32base.h>

#include <f32file.h>

#include <logcli.h>

#include "MLogsObserver.h"

#include "MLogsCallObserver.h"

#include "TLogsEventStrings.h"

#include "LogsEng.hrh"

#include "CLogsClearNewMissed.h"

#include "MLogsClearNewMissed.h"

// FORWARD DECLARATION

// CLASS DECLARATION

class MLogsModel;

class MLogsClearLog;

class MLogsStateHolder;

class MLogsReader;

//class TPreferredPbkStore;

class MLogsConfig;

class MLogsGetEvent;

class MLogsSharedData;

class MLogsSystemAgent;

class CCnvCharacterSetConverter;

class CLogsCntLinkChecker;

/**

 *  Implements entry point class to LogsEngine.dll

 */

class CLogsEngine : public CBase,

                    public MLogsObserver,

                    public MLogsCallObserver

    {

    public:

       /**

        * Constructor.

        *

        * @return CLogsEngine object

        */

        IMPORT_C static CLogsEngine* NewL();

       /**

        * Destructor.

        */

        IMPORT_C virtual ~CLogsEngine();

    private:

       /**

        * C++ default constructor.

        */

        CLogsEngine();

       /**

        * Second phase of construction

        */

        void ConstructL();

        void DeleteClearNewMissedL();

    public: 

       /**

        * Model getter

        *

        * @param aModel model identificator

        * @return pointer to model

        */

        IMPORT_C MLogsModel* Model( TLogsModel aModel ) const;

       /**

        * DB clearer getter

        *

        * @return pointer to db clearer object

        */

        IMPORT_C MLogsClearLog* ClearLogsL();

        /**

        * Event writer getter

        *

        * @return pointer to event writer object

        */

        IMPORT_C MLogsClearNewMissed* ClearNewMissedL();

       /**

        * DB event updater 

        * @param aStore preferred phonebook storage for searching contacts        

        *

        * @return pointer to db event updater

        */

        IMPORT_C MLogsReader* EventUpdaterL();

       /**

        * CntLinkChecker getter

        *

        * @return pointer to CntLink checker object

        */

        IMPORT_C CLogsCntLinkChecker* CntLinkCheckerL();

       /**

        * DB configurator getter

        *

        * @return pointer to db configurator

        */

        IMPORT_C MLogsConfig* ConfigL();

       /**

        * Getter for log event getter

        *

        * @return pointer to log event getter

        */

        IMPORT_C MLogsGetEvent* GetEventL();

       /**

        * Shared data getter

        *

        * @return pointer to shared data object

        */

        IMPORT_C MLogsSharedData* SharedDataL();        

       /**

        * System agent getter

        *

        * @return pointer to system agent object

        */

        IMPORT_C MLogsSystemAgent* SystemAgentL();

       /**

        * Deletes log event getter

        */

        IMPORT_C void DeleteGetEvent();

       /**

        * Deletes log event updater

        */

        IMPORT_C void DeleteEventUpdater();

       /**

        * Deletes CntLink checker

        */

        IMPORT_C void DeleteCntLinkChecker();

       /**

        * Deletes sms event updater

        */

        IMPORT_C void DeleteSMSEventUpdater();

       /**

        * Deletes system agent object

        */

        IMPORT_C void DeleteSystemAgent();

       /**

        * Deletes log db configurator

        */

        IMPORT_C void DeleteConfig();

       /**

        * Deletes log db clearer

        */

        IMPORT_C void DeleteClearLog();

       /**

        * Model creator

        *

        * @param aModel model identificator

        */

        IMPORT_C void CreateModelL( TLogsModel aModel );

       /**

        * Starts matching SMS events with the phonebook and updating

        * @param aStore preferred phonebook storage for searching contacts                

        */

        IMPORT_C void StartSMSEventUpdaterL();

		/**

		 * Shared Data creator

		 */

		// IMPORT_C void CreateSharedDataL();

		/**

		 * Deletes all not-needed resources when switching the logs to

		 * background mode.

		 */

		IMPORT_C void FreeResourcesForBGModeL();

		/**

		 * Converts 8-bit descriptor data to 16-bit format.

         * @param aForeignText Text to be converted

         * @param aConvertedText Text converted. model identificator

         *

         * @return KErrNone, if converted ok. Otherwise error code.

		 */

        IMPORT_C TInt ConvertToUnicode(const TDesC8& aForeignText,

                                             TDes16& aConvertedText);

		/**

		 * Returns identification strings used by Log database

         *

         * @return strings used by Log database

		 */

        IMPORT_C TLogsEventStrings LogDbStrings();

		/**

		 * Returns reference to CLogClient. 

         *

         * @return pointer to CLogClient

		 */

        IMPORT_C CLogClient* CLogClientRef();

    public: // from MLogsObserver

        void StateChangedL( MLogsStateHolder* aHolder );

    public: // from MLogsCallObserver    

        void CallStateChangedL( TInt aCallState );

    private:    // data

        /// Ref:

        CLogClient* iLogClient;

        /// Own:

        TLogsEventStrings iStrings;

        /// Own: file server session

        RFs iFsSession;

        /// Own: main ( log ) model

        MLogsModel* iMainModel;

        /// Own: recent received model

        MLogsModel* iReceivedModel;

        /// Own: recent dialled model

        MLogsModel* iDialledModel;

        /// Own: recent missed model

        MLogsModel* iMissedModel;

        /// Own: clearing log db object

        MLogsClearLog* iClearLogs;

        CLogsClearNewMissed* iClearNewMissed;

        /// Own: sms event updater

        MLogsReader* iSMSUpdater;

        /// Own: event updater

        MLogsReader* iEventUpdater;

        /// Own: CntLink checker

        CLogsCntLinkChecker* iCntLinkChecker;

        /// Own: log db configuration

        MLogsConfig* iConfig;

        /// Own: log get event

        MLogsGetEvent* iGetEvent;

        /// Own: shared data

        MLogsSharedData* iSharedData;

        /// Own: system agent

        MLogsSystemAgent* iSystemAgent;

        /// Own: Unicode converter

        CCnvCharacterSetConverter* iConverter;

    };

#endif      // __Logs_Engine_CLogsEngine_H__

// End of File