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OnlineChatBEImpl.h

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//
// C++ Interface: COnlineChatBEImpl
//
// Description: 
//
//
// Author: upi <upi@feel>, (C) 2004
//
// Copyright: See COPYING file that comes with this distribution
//
//
#ifndef CONLINECHATBEIMPL_H
#define CONLINECHATBEIMPL_H


#include "OnlineChatBE.h"
#include "SDL_net.h"
#include "SDL_thread.h"
#include <list>

class COnlineChatBEImpl: public IOnlineChatBE
{
public:
    COnlineChatBEImpl();

    ~COnlineChatBEImpl();


public:
    // Connection
    
    virtual void                connect( std::string a_sNick );
    virtual void                disconnect();
    virtual ConnectionStateEnum getConnectionState() const;
    
    // Getting/setting my connection parameters
    
    virtual std::string         getMyNick() const;
    virtual void                setMyNick( std::string a_sNick );
    virtual ClientModeEnum      getMyClientMode() const;
    virtual void                setMyClientMode( ClientModeEnum a_enClientMode );
    virtual const UserInfo&     getMyUserInfo() const;              
    
    // User control
    
    virtual int                 getUserCount() const;
    virtual const UserInfo&     getUserInfo( int a_iUserNumber ) const;
    virtual ClientModeEnum      getClientMode() const;
    virtual void                setClientMode( ClientModeEnum a_enNewMode );
    
    // Event sinks
    
    virtual void                addEventSink( IOnlineEventSink* a_poSink );
    virtual void                removeEventSink( IOnlineEventSink* a_poSink );
    virtual void                removeAllEventSinks();

protected:
    void                        notifyEvent( const IOnlineChatBE::SChatEvent& a_roEvent );
    void                        notifyConnectionState( IOnlineChatBE::ConnectionStateEnum a_enOldState, 
                                                       IOnlineChatBE::ConnectionStateEnum a_enNewState,
                                                       const std::string& a_rsMessage );
    void                        notifyConnectionState( const std::string& a_rsMessage );
                                                       
    void                        threadFunction();
    void                        internalConnect();
    void                        internalDisconnect();
    void                        internalProcessMessage();
    void                        sendNick();
    void                        sendRawData( char a_cPrefix, const char* a_pcMessage );

protected:
    // typedef
    typedef std::list<IOnlineEventSink*> EventSinkList;
    typedef std::list<UserInfo*> UserInfoList;
    
    // Internal state
    ConnectionStateEnum         m_enConnectionState;        // The current state of the connection to the server
    ConnectionStateEnum         m_enNotifiedState;          // The last notified connection state
    ClientModeEnum              m_enClientMode;             // The current state of the client (e.g. "away")
    std::string                 m_sMyNick;                  // The last received nick from the server
    EventSinkList               m_apoSinks;                 // Receivers of events
    UserInfoList                m_apoUsers;                 // User list from the server
    
    // Connection to the server
    TCPsocket                   m_poSocket;                 // The TCP/IP network socket.
    SDLNet_SocketSet            m_poSocketSet;              // SDLNet construct for watching the socket.
    char                        m_acIncomingBuffer[4096];   
    int                         m_iIncomingBufferSize;      
    
    SDL_mutex*                  m_poLock;
};

#endif

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