//========= Copyright © 1996-2005, Valve Corporation, All rights reserved. ============//
//
// Purpose: 
//
// $Workfile:     $
// $Date:         $
//
//-----------------------------------------------------------------------------
// $Log: $
//
// $NoKeywords: $
//=============================================================================//
#if !defined( INETCHANNELINFO_H )
#define INETCHANNELINFO_H
#ifdef _WIN32
#pragma once
#endif


#define FLOW_OUTGOING	0		
#define FLOW_INCOMING	1
#define MAX_FLOWS		2		// in & out

class INetChannelInfo
{
public:

	enum {
		GENERIC = 0,	// must be first and is default group
		LOCALPLAYER,	// bytes for local player entity update
		OTHERPLAYERS,	// bytes for other players update
		ENTITIES,		// all other entity bytes
		SOUNDS,			// game sounds
		EVENTS,			// event messages
		USERMESSAGES,	// user messages
		ENTMESSAGES,	// entity messages
		VOICE,			// voice data
		STRINGTABLE,	// a stringtable update
		MOVE,			// client move cmds
		STRINGCMD,		// string command
		SIGNON,			// various signondata
		TOTAL,			// must be last and is not a real group
	};
	
	virtual const char  *GetName( void ) const = 0;	// get channel name
	virtual const char  *GetAddress( void ) const = 0; // get channel IP address as string
	virtual float		GetTime( void ) const = 0;	// current net time
	virtual float		GetTimeConnected( void ) const = 0;	// get connection time in seconds
	virtual int			GetBufferSize( void ) const = 0;	// netchannel packet history size
	virtual int			GetDataRate( void ) const = 0; // send data rate in byte/sec
	
	virtual bool		IsLoopback( void ) const = 0;	// true if loopback channel
	virtual bool		IsTimingOut( void ) const = 0;	// true if timing out
	virtual bool		IsPlayback( void ) const = 0;	// true if demo playback

	virtual float		GetLatency( int flow ) const = 0;	 // current latency (RTT), more accurate but jittering
	virtual float		GetAvgLatency( int flow ) const = 0; // average packet latency in seconds
	virtual float		GetAvgLoss( int flow ) const = 0;	 // avg packet loss[0..1]
	virtual float		GetAvgChoke( int flow ) const = 0;	 // avg packet choke[0..1]
	virtual float		GetAvgData( int flow ) const = 0;	 // data flow in bytes/sec
	virtual float		GetAvgPackets( int flow ) const = 0; // avg packets/sec
	virtual int			GetTotalData( int flow ) const = 0;	 // total flow in/out in bytes
	virtual int			GetSequenceNr( int flow ) const = 0;	// last send seq number
	virtual bool		IsValidPacket( int flow, int frame_number ) const = 0; // true if packet was not lost/dropped/chocked/flushed
	virtual float		GetPacketTime( int flow, int frame_number ) const = 0; // time when packet was send
	virtual int			GetPacketBytes( int flow, int frame_number, int group ) const = 0; // group size of this packet
	virtual bool		GetStreamProgress( int flow, int *received, int *total ) const = 0;  // TCP progress if transmitting
	virtual float		GetTimeSinceLastReceived( void ) const = 0;	// get time since last recieved packet in seconds
	virtual	float		GetCommandInterpolationAmount( int flow, int frame_number ) const = 0;
	virtual void		GetPacketResponseLatency( int flow, int frame_number, int *pnLatencyMsecs, int *pnChoke ) const = 0;
	virtual void		GetRemoteFramerate( float *pflFrameTime, float *pflFrameTimeStdDeviation ) const = 0;

	virtual float		GetTimeoutSeconds() const = 0;
};

#endif // INETCHANNELINFO_H
