/**************************************************************
 * 
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 * 
 *************************************************************/



#ifndef _COMMUNI_HXX
#define _COMMUNI_HXX

#include <svl/svarray.hxx>
#include <vos/thread.hxx>
#include <vos/mutex.hxx>
#include <vcl/timer.hxx>
#include <automation/simplecm.hxx>

class SvStream;
class SvMemoryStream;
//class Application;

class CommunicationManagerServerAcceptThread;
SV_DECL_PTRARR_SORT( CommunicationLinkList, CommunicationLink*, 1, 10 )

class MultiCommunicationManager : public CommunicationManager
{
public:
	MultiCommunicationManager( sal_Bool bUseMultiChannel = sal_False );
	virtual ~MultiCommunicationManager();
	virtual sal_Bool StopCommunication();		// Hält alle CommunicationLinks an
	virtual sal_Bool IsLinkValid( CommunicationLink* pCL );
	virtual sal_uInt16 GetCommunicationLinkCount();
	virtual CommunicationLinkRef GetCommunicationLink( sal_uInt16 nNr );

    void DoQuickShutdown( sal_Bool bQuickShutdown = sal_True) { bGracefullShutdown = !bQuickShutdown; }

protected:
	virtual void CallConnectionOpened( CommunicationLink* pCL );
	virtual void CallConnectionClosed( CommunicationLink* pCL );
	CommunicationLinkList *ActiveLinks;
	CommunicationLinkList *InactiveLinks;		/// Hier sind die CommunicationLinks drin, die sich noch nicht selbst abgemeldet haben.
												/// allerdings schon ein StopCommunication gekriegt haben, bzw ein ConnectionTerminated
	virtual void DestroyingLink( CommunicationLink *pCL );	// Link trägt sich im Destruktor aus

    sal_Bool bGracefullShutdown;
};

class CommunicationManagerServer : public MultiCommunicationManager
{
public:
	CommunicationManagerServer( sal_Bool bUseMultiChannel = sal_False ):MultiCommunicationManager( bUseMultiChannel ){;}
};

class CommunicationManagerClient : public MultiCommunicationManager, public ICommunicationManagerClient
{
public:
	CommunicationManagerClient( sal_Bool bUseMultiChannel = sal_False );
};

class CommunicationLinkViaSocket : public SimpleCommunicationLinkViaSocket, public vos::OThread
{
public:
	CommunicationLinkViaSocket( CommunicationManager *pMan, vos::OStreamSocket *pSocket );
	virtual ~CommunicationLinkViaSocket();

	virtual sal_Bool IsCommunicationError();
	virtual sal_Bool DoTransferDataStream( SvStream *pDataStream, CMProtocol nProtocol = CM_PROTOCOL_OLDSTYLE );

	// Diese sind Virtuelle Links!!!!
	virtual long ConnectionClosed( void* = NULL );
	virtual long DataReceived( void* = NULL );

	virtual sal_Bool StopCommunication();

    void SetPutDataReceivedHdl( Link lPutDataReceived ){ mlPutDataReceived = lPutDataReceived; }
    Link GetDataReceivedLink () {Link aLink = LINK( this, CommunicationLinkViaSocket, DataReceived ); return aLink;}
    DECL_LINK( PutDataReceivedHdl, CommunicationLinkViaSocket* );

protected:
	virtual void SAL_CALL run();

	virtual sal_Bool ShutdownCommunication();
	sal_uLong nConnectionClosedEventId;
	sal_uLong nDataReceivedEventId;
	vos::OMutex aMConnectionClosed;	// Notwendig, da Event verarbeitet werden kann bevor Variable gesetzt ist
	vos::OMutex aMDataReceived;		// Notwendig, da Event verarbeitet werden kann bevor Variable gesetzt ist
	virtual void WaitForShutdown();

    DECL_LINK( ShutdownLink, void* );
   	Timer aShutdownTimer;
    sal_Bool bShutdownStarted;
    sal_Bool bDestroying;
    Link mlPutDataReceived;
};

class CommunicationManagerServerViaSocket : public CommunicationManagerServer
{
	friend class CommunicationManagerServerAcceptThread;
public:
    using CommunicationManager::StartCommunication;

	CommunicationManagerServerViaSocket( sal_uLong nPort, sal_uInt16 nMaxCon, sal_Bool bUseMultiChannel = sal_False );
	virtual ~CommunicationManagerServerViaSocket();

	virtual sal_Bool StartCommunication();
	virtual sal_Bool StopCommunication();

protected:
	sal_uLong nPortToListen;
	sal_uInt16 nMaxConnections;

private:
	CommunicationManagerServerAcceptThread *pAcceptThread;
	void AddConnection( CommunicationLink *pNewConnection );
};

class CommunicationManagerServerAcceptThread: public vos::OThread
{
public:
	CommunicationManagerServerAcceptThread( CommunicationManagerServerViaSocket* pServer, sal_uLong nPort, sal_uInt16 nMaxCon = CM_UNLIMITED_CONNECTIONS );
	virtual ~CommunicationManagerServerAcceptThread();
	CommunicationLinkRef GetNewConnection(){ CommunicationLinkRef xTemp = xmNewConnection; xmNewConnection.Clear(); return xTemp; }

protected:
	virtual void SAL_CALL run();

private:
	CommunicationManagerServerViaSocket* pMyServer;
	vos::OAcceptorSocket *pAcceptorSocket;
	sal_uLong nPortToListen;
	sal_uInt16 nMaxConnections;
	sal_uLong nAddConnectionEventId;
	vos::OMutex aMAddConnection;	// Notwendig, da Event verarbeitet werden kann bevor Variable gesetzt ist
	void CallInfoMsg( InfoString aMsg ){ pMyServer->CallInfoMsg( aMsg ); }
	CM_InfoType GetInfoType(){ return pMyServer->GetInfoType(); }

	// Diese beiden werden zum Transport der Connection vom Thread zum Mainthread verwendet.
	CommunicationLinkRef xmNewConnection;
	DECL_LINK( AddConnection, void* );
};

class CommunicationManagerClientViaSocket : public CommunicationManagerClient, CommonSocketFunctions
{
public:
    using CommunicationManager::StartCommunication;

	CommunicationManagerClientViaSocket( ByteString aHost, sal_uLong nPort, sal_Bool bUseMultiChannel = sal_False );
	CommunicationManagerClientViaSocket( sal_Bool bUseMultiChannel = sal_False );
	virtual ~CommunicationManagerClientViaSocket();

	virtual sal_Bool StartCommunication(){ return StartCommunication( aHostToTalk, nPortToTalk );}
	virtual sal_Bool StartCommunication( ByteString aHost, sal_uLong nPort ){ return DoStartCommunication( this, (ICommunicationManagerClient*) this, aHost, nPort  );}

private:
	ByteString aHostToTalk;
	sal_uLong nPortToTalk;
protected:
	virtual CommunicationLink *CreateCommunicationLink( CommunicationManager *pCM, vos::OConnectorSocket *pCS ){ return new CommunicationLinkViaSocket( pCM, pCS ); }
};

#endif