/*

* Copyright (c) 2008 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:  class declaration for accessing the cache

*

*/

#ifndef __CIMCACHEACCESSOR_H__

#define __CIMCACHEACCESSOR_H__

#include <e32base.h>

#include "mimcacheaccessor.h"

#include "cimcacheclient.h"

class MIMCacheEventHandler;

/**

 * write right class declaration

 */

NONSHARABLE_CLASS( CIMCacheAccessor ): public CBase,

								 public MIMCacheAccessor

    {

	public:

		/**

		* Two-phased constructor.

		* @param aServiceId, service id to used

		* @param aUserId, user id who is conversing

		*/

		static CIMCacheAccessor* NewL(TInt aServiceId,

										const TDesC& aUserId );

		/**

		* virtual destructor.

		*/

    	virtual ~CIMCacheAccessor();

	private:

		/**

		* ConstructL.

		* @param aUserId, user id who is conversing

		*/

    	void ConstructL( const TDesC& aUserId );

    	/**

		* default constructor.

		* @param aServiceId, service id to used

		*/

		CIMCacheAccessor(TInt aServiceId);

	private: // from MIMCacheAccessor

		/**

    	* Register to observer instantmessagingcache data updates

    	* @param aObserver the observer interface

    	*/

        void RegisterObserverL( MIMCacheEventHandler& aObserver );

    	/**

    	* Unregister a instantmessagingcache data update observer

    	* @param aObserver the observer interface

    	*/

        void UnRegisterObserver( MIMCacheEventHandler& aObserver);

       	/**

    	* to get the unread message count from server

    	* @param aOwnUserId , logged in user id

    	* @return number of unread msg count

    	*/

       TInt GetUnreadMessageCountL(const TDesC& aBuddyId );

		 /**

    	* to get the all unread message count from server

    	* @param , aOwnUserId logged in user id

    	* @return number of all unread msg count

    	*/

        TInt GetAllUnreadMessageCountL();		

		/**

         * check if already conversation opened

         * @param aServiceId, serviceid to use

         * @param aOwnUserId, own user id 

         * @param aRecipientId, the selected user id with whom conversation is started

         * @return ETrue if already exist else EFlase.

         */

        TBool IsConversationExistL( const TDesC& aBuddyId )  ;

        /**

        * closes conversation and commit operation

        * @param aServiceId service id.

        * @param aOwnId own user id.

        * @param aRecipientId recipient's user id.

        */

        void CloseConversationL( const TDesC& aBuddyId );

        /**

        * get the chat list corresponding to service

        * @param aServiceId service id

        * @return Array of chats

        */

        RArray<SIMCacheChatItem> GetChatListL( const TInt aServiceId  ); 

	private :

		/**

         * default constructor.

         * @param aServiceId, service id to used

         */

        void InternalizeChatListL( RArray<SIMCacheChatItem>& aChatArray, TPtr8 aChatListBuffer, TBool& aMore );

    public : // new api

       /**

		* return the serviceid

		*/

    	TInt ServiceId() const ;	        

	private: // data

		// owned , user id

		HBufC* iUserId;

		// not owned , client

		CIMCacheClient iClient;

		// owned, service id

		TInt iServiceId;

    };

#endif      //  __CIMCACHEUPDATER_H__

//  END OF FILE