// Copyright (c) 2008-2009 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 PLAYERSTATEWATCHER_H

#define PLAYERSTATEWATCHER_H

#include <e32base.h>

#include <e32hashtab.h>

#include <remcon/clientid.h>

#include <playerinformationtargetobserver.h>

#include "commandhandlerinterface.h"

class MRemConCommandInterface;

class CInternalCommand;

class CAvrcpCommand;

NONSHARABLE_CLASS(CPlayerWatcherBase) : public CBase, public MIncomingCommandHandler

	{

public:

	virtual void StartWatchingPlayerL(TRemConClientId aClientId) = 0;

	void StopWatchingPlayer(TRemConClientId aClientId);

protected:

	virtual void ReceiveUpdate(CInternalCommand& aCommand, TRemConClientId aClientId, RBuf8& aData) = 0;

	virtual void ReceiveReject(TRemConClientId aClientId) = 0;

private: // from MIncomingCommandHandler

	// lower interface 

	void MessageSent(CAvrcpCommand& aCommand, TInt aSendResult);

	void MaxPacketSize(TInt aMtu);

	void ReceiveCommandL(const TDesC8& aMessageInformation, SymbianAvctp::TTransactionLabel aTransLabel, const TBTDevAddr& aAddr);

	// upper interface

	TInt SendRemConResponse(TUid aInterfaceUid, TUint aTransactionId, RBuf8& aData) ;

	void SendReject(TUid aInterfaceUid, TUint aTransactionId);

	void Disconnect();

protected:

	CPlayerWatcherBase(MRemConCommandInterface& aCommandInterface);

	~CPlayerWatcherBase();

private:

	CInternalCommand& FindCommand(TUid aInterfaceUid, TUint aTransactionId, 

			TRemConClientId& aFoundClientId);

protected:

	MRemConCommandInterface& iCommandInterface;

	RHashMap<TRemConClientId, CInternalCommand*> iCommands;

	};

NONSHARABLE_CLASS(MPlayStatusObserver)

	{

public:

	virtual void MpsoPlayStatusChanged(TRemConClientId aId, MPlayerEventsObserver::TPlaybackStatus aPlaybackStatus) = 0;

	virtual void MpsoError(TRemConClientId aId) = 0;

	};

NONSHARABLE_CLASS(CPlayStatusWatcher) : public CPlayerWatcherBase

	{

public:

	static CPlayStatusWatcher* NewL(MPlayStatusObserver& aObserver,

			MRemConCommandInterface& aCommandInterface);

	~CPlayStatusWatcher();

	void StartWatchingPlayerL(TRemConClientId aClientId);

private:

	CPlayStatusWatcher(MPlayStatusObserver& aObserver,

			MRemConCommandInterface& aCommandInterface);

	void SendPlayStatusUpdateRequest(CInternalCommand& aCommand, TRemConClientId& aClientId, MPlayerEventsObserver::TPlaybackStatus aPlaybackStatus);

	void ReceiveUpdate(CInternalCommand& aCommand, TRemConClientId aClientId, RBuf8& aData);

	void ReceiveReject(TRemConClientId aClientId);

private:

	MPlayStatusObserver& iObserver;

	};

NONSHARABLE_CLASS(MUidObserver)

	{

public:

	virtual void MuoUidChanged(TRemConClientId aId, TUint16 aUidCounter) = 0;

	virtual void MuoError(TRemConClientId aId) = 0;

	};

NONSHARABLE_CLASS(CUidWatcher) : public CPlayerWatcherBase

	{

public:

	static CUidWatcher* NewL(MUidObserver& aObserver,

			MRemConCommandInterface& aCommandInterface);

	~CUidWatcher();

	void StartWatchingPlayerL(TRemConClientId aClientId);

private:

	CUidWatcher(MUidObserver& aObserver,

			MRemConCommandInterface& aCommandInterface);

	void SendUidUpdateRequest(CInternalCommand& aCommand, TRemConClientId& aClientId, TUint16 aUidCounter);

	void ReceiveUpdate(CInternalCommand& aCommand, TRemConClientId aClientId, RBuf8& aData);

	void ReceiveReject(TRemConClientId aClientId);

private:

	MUidObserver& iObserver;

	};

#endif //PLAYERSTATEWATCHER_H