/*

* Copyright (c) 2007 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of the License "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:

*

*

*/

#ifndef __CALENDARSERVICE_H

#define __CALENDARSERVICE_H

class CAsyncRequestObserver;

class CEntryAttributes;

class CCalendarSessionInfo;

/**

 * Calendar Service class. Perfoms various operations on calendar / calendar entries.

*/

class CCalendarService : public CBase

	{

	public:

		/**

		 * Two Phase Constructor

		*/ 

		IMPORT_C static CCalendarService* NewL();

		/**

		 * Destructor

		*/ 

		virtual ~CCalendarService();

	private:

		/**

		 * Constructor

		*/ 

		CCalendarService();

		/**

		 * Constructor

		*/ 

		void ConstructL();

		/**

		 * Adds asynchronous request object

		 * @param aTransactionId Transcation Id os Async object

		 * @param aAsyncObj  Async object

		*/ 

		void AddAsyncObjL( const TInt32 aTransactionId, CCalendarASyncRequest* aAsyncObj );

		/**

		 * Returns session info for the given calendar

		 * @param aCalendar Calendar Name

		 * @return CCalendarSessionInfo* Session info object

		*/ 

		CCalendarSessionInfo* CalendarSessionInfoL( const TDesC& aCalendar );

		/**

		 * Removes Session info object

		 * @param aCalendar Calendar session to be removed

		 * @return void

		*/ 

		void RemoveSessionInfo( const TDesC& aCalendar );

	public:

		/**

		 * Returns list of available calendars in device.

		 * @param aDefault Flag for getting default calendar only

		 * @param aCalendarList Calendar List

		*/ 

		IMPORT_C void GetListL( CDesCArray*&  aCalendarList, const TBool aDefault = EFalse );

		/**

		 * Returns list of calendar entries from given calendar with the given Global UID.

		 * @param aCalendarName Calendar Name

		 * @param aGuid Global UID

		 * @param aEntryList output param gives Calendar Entry List

		*/ 

		IMPORT_C void GetListL( const TDesC& aCalendarName, const TDesC8& aGuid, RPointerArray<CCalEntry>& aEntryList);

		/**

		 * Returns list of calendar entries from given calendar with the given Local UID.

		 * @param aCalendarName Calendar Name

		 * @param aLocalUid Local UID

		 * @param aEntryList output param gives Calendar Entry List

		*/ 

		IMPORT_C void GetListL( const TDesC& aCalendarName, const TCalLocalUid aLocalUid, RPointerArray<CCalEntry>& aEntryList);

		/**

		 * Returns list of calendar instance from given calendar with the given Filter.

		 * @param aCalendarName Calendar Name

		 * @param aFilter Filter, Ownership is passed

		 * @param aInstanceList output param gives Calendar Instance List

		*/ 

		/**

		 * Add new calendar in device.

		 * @param aCalendarName Calendar Name

		*/ 

		IMPORT_C void AddL( const TDesC& aCalendarName );

		/**

		 * Add new entry to given calendar.

		 * @param aCalendarName Calendar Name

		 * @param aCalendarData Entry data, Ownership is passed

		 * @param aUidAdded Uid for newly added entry

		*/ 

		IMPORT_C void AddL( const TDesC& aCalendarName, CEntryAttributes* aCalendarData, TUIDSet*& aUidAdded );

		/**

		 * Remove calendar from the device. Deletion of defaut calendar is not supported

		 * @param aCalendarName Calendar Name

		*/ 

		IMPORT_C void DeleteL( const TDesC& aCalendarName );

		/**

		 * Remove entries from the given calendar based on input filter

		 * @param aCalendarName Calendar Name

		 * @param aFilter Filter, Ownership is passed

		 * @param aCallback CallBack for asynchronous requests, Ownership is passed

		*/ 

		IMPORT_C void DeleteL(  const TDesC& aCalendarName, CCalendarFilter* aFilter, MCalCallbackBase* aCallback = NULL );

        /**

		 * ASynchronous Version of Import: Imports the contents specified in the InputBuffer complaining to aFormat to aCalendarName

		 * @param aCalendarName Calendar Name

		 * @param aFormat used to set the iFormat it can be either ICAL or VCAL, two popular Calendar formats

		 * @param aInputBuffer contains the data to be imported to the specified calendar

		 * @param aCallBack   For ASyncronous usage of this Object this paramater is mandatory to be set

		 *

		 * @return void

		 */

		IMPORT_C void ImportL( const TDesC& aCalendarName, const TDesC8& aFormat, const TDesC8& aInputBuffer, MCalCallbackBase* aCallBack );

        /**

		 * ASynchronous Version of Import: Imports the contents specified in the InputBuffer complaining to aFormat to aCalendarName

		 * @param aCalendarName Calendar Name

		 * @param aFormat used to set the iFormat it can be either ICAL or VCAL, two popular Calendar formats

		 * @param aImportFile File from where entries needs to be imported

		 * @param aCallBack   For ASyncronous usage of this Object this paramater is mandatory to be set

		 *

		 * @return void

		 */

		IMPORT_C void ImportL( const TDesC& aCalendarName, const TDesC8& aFormat, const TDesC& aImportFile, MCalCallbackBase* aCallBack );

		/**

		 * Synchronous Version of Import: Imports the contents specified in the InputBuffer complaining to aFormat to aCalendarName

		 * @param aCalendarName Calendar Name

		 * @param aFormat used to set the iFormat it can be either ICAL or VCAL, two popular Calendar formats

		 * @param aInputBuffer contains the data to be imported to the specified calendar

		 * @param aCUIDSet contains the GUids and LUids of the imported entries from inputbuffer

		 *				

		 * @return void

		 */

		IMPORT_C void ImportL( const TDesC& aCalendarName, const TDesC8& aFormat, const TDesC8& aInputBuffer, RPointerArray<TUIDSet>& aUIDSet );	

		/**

		 * Synchronous Version of Import: Imports the contents specified in the InputBuffer complaining to aFormat to aCalendarName

		 * @param aCalendarName Calendar Name

		 * @param aFormat used to set the iFormat it can be either ICAL or VCAL, two popular Calendar formats

		 * @param aImportFile File from where entries needs to be imported

		 * @param aCUIDSet contains the GUids and LUids of the imported entries from inputbuffer

		 *				

		 * @return void

		 */

		IMPORT_C void ImportL( const TDesC& aCalendarName, const TDesC8& aFormat, const TDesC& aImportFile, RPointerArray<TUIDSet>& aUIDSet );	

		/**

     	 * Synchronous Version of Export which Exports the data from aCalendarName in aFormat to aOutputBuffer 

		 * @param aCalendarName Calendar Name

		 * @param aFormat used to set the iFormat it can be either ICAL or VCAL, two popular Calendar formats

		 * @param aParams used to specify the GUIDS or LUIDS in it or nulll signify all entries to be exported

		 * @param aOutputBuffer    This Buffer contains the Output (Exported from the calender)				

		 *

		 * @return void

		 */

		IMPORT_C void ExportL( const TDesC& aCalendarName, const TDesC8& aFormat, CCalendarExportParams* aParams, HBufC8*& aOutputBuffer );

		/**

     	 * ASynchronous Version of Export which Exports the data from aCalendarName in aFormat to HBufC8*(which is sent througn callback mehcnism) 

		 * @param aCalendarName Calendar Name

		 * @param aFormat used to set the iFormat it can be either ICAL or VCAL, two popular Calendar formats

		 * @param aParams used to specify the GUIDS or LUIDS in it or nulll signify all entries to be exported

		 * @param aCallBack   For ASyncronous usage of this Object this paramater is mandatory to be set				

		 *

		 * @return void

		 */

		IMPORT_C void ExportL( const TDesC& aCalendarName, const TDesC8& aFormat, CCalendarExportParams* aParams, MCalCallbackBase* aCallBack );

		/**

		 * Start Notification for changes in given calendar

		 * @param aCalendarName Calendar Name

		 * @param aFilter Filter, Ownership is passed

		 * @param aCallback CallBack for asynchronous requests, Ownership is passed

		*/ 

		IMPORT_C void StartChangeNotifyL( const TDesC& aCalendarName, CCalendarFilter* aFilter, MCalCallbackBase* aCallback );

		/**

		 * Cancels asynchronous request

		 * @param aTransactionId     asynchronous transaction id

		 * @param aResult        error code

		*/ 				

		IMPORT_C TInt Cancel( TInt32 aTransectionID );

	private:

		/**

		 * Represents a channel of communication between a client thread 

		 * and the Calendar Server thread.

	  	*/ 

		RPointerArray< CCalendarSessionInfo > iArraySessionInfo;

		/**

		 * Asynchronous request observer

	  	*/ 

		CAsyncRequestObserver* 		iAsyncReqObserver;

	};