// Copyright (c) 2000-2009 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:

//

#ifndef BTSDPAGENTENGINE_H

#define BTSDPAGENTENGINE_H

#include <e32base.h>

#include <bttypes.h>

#include <btsdp.h>

#include "agtypes.h"

class CSdpAttrBuilder;

class CSdpRequesterBase;

class CSdpAttributeRequester;

class CSdpSearchRequester;

/**

   Engine that actually implements the CSdpAgent facade funtionality.

**/

NONSHARABLE_CLASS(CSdpAgentEng) : public CBase

	{

friend class CSdpAttributeRequester;

friend class CSdpSearchRequester;

public:

	static CSdpAgentEng* NewL(MSdpAgentNotifier& aNotifier, TBTDevAddr aDevAddr);

	void ConstructL();

	~CSdpAgentEng();

	void SetRecordFilterL(const CSdpSearchPattern& aUUIDFilter);

	void NextRecordRequestL();

	void AttributeRequestL(TSdpServRecordHandle aHandle, 

						   const CSdpAttrIdMatchList& aMatchList);

	void AttributeRequestL(MSdpElementBuilder* aBuilder,

		                   TSdpServRecordHandle aHandle, 

						   const CSdpAttrIdMatchList& aMatchList);

	void Cancel();

private:

	// upcalls from requesters AOs. Not exported

	void HandleServiceSearchResponseL(TUint16 aTotalRecCount,

									 TUint16 aCurrentRecCount,

									 const TDesC8& aRecHandles,

									 const TDesC8& aContState);

	void HandleServiceSearchError(TInt aError);

	void HandleAttributeResponseL(const TDesC8& aAttributeList, 

								  const TDesC8& aContState);

	void HandleAttributeError(TInt aError);

	void SendAttributeRequestL();

	TBool TryToCompleteNextRecordRequest();

	 //FIXME: do we need this or do we search?

	CSdpAgentEng(MSdpAgentNotifier& aNotifier, TBTDevAddr aDevAddr);

	void ResetForNewAttributeRequest();

	void ResetForNewRecordRequest();

private:

	enum TServiceSearchState

		{

		EIdle,

		ERequesting,

		EResultsReceived

		};

	TContState iSearchRequestContState;

	CSdpSearchPattern* iUUIDFilter;

	CArrayFix<TSdpServRecordHandle>* iBuiltRecHandles;

	TInt iNextRecHandle;

	TInt iTotalRecCount;

	TServiceSearchState iServiceSearchState;

	TBool iCancelCalled;

	TSdpServRecordHandle iAttributeRequestHandle;

	TContState iAttributeRequestContState;

	CSdpAttrIdMatchList* iMatchList;

	CSdpAttrBuilder* iDefaultAttributeBuilder;

	CElementParser* iParser;

	MSdpAgentNotifier& iNotifier;

	TBTDevAddr iRemoteAddress;

	RSdpSession iSdpSession;

	CSdpSearchRequester* iSearchRequester;

	CSdpAttributeRequester* iAttributeRequester;

	};

#endif