//========= Copyright © 1996-2005, Valve Corporation, All rights reserved. ============//
//
// Purpose: 
//
// $NoKeywords: $
//
//=============================================================================//

#include <stdio.h>

#include "interface.h"
#include "filesystem.h"
#include "engine/iserverplugin.h"
#include "dlls/iplayerinfo.h"
#include "eiface.h"
#include "igameevents.h"
#include "convar.h"
#include "Color.h"
#include "vstdlib/random.h"
#include "engine/IEngineTrace.h"

//My Includes
//
#include "addict/CServerMan.h"
#include "addict/CTimer.h"

// memdbgon must be the last include file in a .cpp file!!!
#include "tier0/memdbgon.h"

// Interfaces from the engine
IVEngineServer	*engine = NULL; // helper functions (messaging clients, loading content, making entities, running commands, etc)
IFileSystem		*filesystem = NULL; // file I/O 
IGameEventManager *gameeventmanager = NULL; // game events interface
IPlayerInfoManager *playerinfomanager = NULL; // game dll interface to interact with players
IBotManager *botmanager = NULL; // game dll interface to interact with bots
IServerPluginHelpers *helpers = NULL; // special 3rd party plugin helpers from the engine
IUniformRandomStream *randomStr = NULL;
IEngineTrace *enginetrace = NULL;


CGlobalVars *gpGlobals = NULL;

// function to initialize any cvars/command in this plugin
void InitCVars( CreateInterfaceFn cvarFactory );
void Bot_RunAll( void ); 

//Pointers to managament, this is NEVER set using new
CServerMan * pServerMan = NULL;
CTimerMan * pTimerMan = NULL;

// useful helper func
inline bool FStrEq(const char *sz1, const char *sz2)
{
	return(Q_stricmp(sz1, sz2) == 0);
}

//---------------------------------------------------------------------------------
// Purpose: a sample 3rd party plugin class
//---------------------------------------------------------------------------------
class CEmptyServerPlugin: public IServerPluginCallbacks, public IGameEventListener
{
public:
	CEmptyServerPlugin();
	~CEmptyServerPlugin();

	// IServerPluginCallbacks methods
	virtual bool			Load(	CreateInterfaceFn interfaceFactory, CreateInterfaceFn gameServerFactory );
	virtual void			Unload( void );
	virtual void			Pause( void );
	virtual void			UnPause( void );
	virtual const char     *GetPluginDescription( void );      
	virtual void			LevelInit( char const *pMapName );
	virtual void			ServerActivate( edict_t *pEdictList, int edictCount, int clientMax );
	virtual void			GameFrame( bool simulating );
	virtual void			LevelShutdown( void );
	virtual void			ClientActive( edict_t *pEntity );
	virtual void			ClientDisconnect( edict_t *pEntity );
	virtual void			ClientPutInServer( edict_t *pEntity, char const *playername );
	virtual void			SetCommandClient( int index );
	virtual void			ClientSettingsChanged( edict_t *pEdict );
	virtual PLUGIN_RESULT	ClientConnect( bool *bAllowConnect, edict_t *pEntity, const char *pszName, const char *pszAddress, char *reject, int maxrejectlen );
	virtual PLUGIN_RESULT	ClientCommand( edict_t *pEntity );
	virtual PLUGIN_RESULT	NetworkIDValidated( const char *pszUserName, const char *pszNetworkID );

	// IGameEventListener Interface
	virtual void FireGameEvent( KeyValues * event );

	//Start all our management tools
	CServerMan ServerMan; 
	CTimerMan TimerMan;

	virtual int GetCommandIndex() { return m_iClientCommandIndex; }
private:
	int m_iClientCommandIndex;
};


// 
// The plugin is a static singleton that is exported as an interface
//
CEmptyServerPlugin g_EmtpyServerPlugin;
EXPOSE_SINGLE_INTERFACE_GLOBALVAR(CEmptyServerPlugin, IServerPluginCallbacks, INTERFACEVERSION_ISERVERPLUGINCALLBACKS, g_EmtpyServerPlugin );

//---------------------------------------------------------------------------------
// Purpose: constructor/destructor
//---------------------------------------------------------------------------------
CEmptyServerPlugin::CEmptyServerPlugin()
{
	m_iClientCommandIndex = 0;
}

CEmptyServerPlugin::~CEmptyServerPlugin()
{
}

//---------------------------------------------------------------------------------
// Purpose: called when the plugin is loaded, load the interface we need from the engine
//---------------------------------------------------------------------------------
bool CEmptyServerPlugin::Load(	CreateInterfaceFn interfaceFactory, CreateInterfaceFn gameServerFactory )
{
	playerinfomanager = (IPlayerInfoManager *)gameServerFactory(INTERFACEVERSION_PLAYERINFOMANAGER,NULL);
	if ( !playerinfomanager )
	{
		Warning( "Unable to load playerinfomanager, ignoring\n" ); // this isn't fatal, we just won't be able to access specific player data
	}

	botmanager = (IBotManager *)gameServerFactory(INTERFACEVERSION_PLAYERBOTMANAGER, NULL);
	if ( !botmanager )
	{
		Warning( "Unable to load botcontroller, ignoring\n" ); // this isn't fatal, we just won't be able to access specific bot functions
	}

	// get the interfaces we want to use
	if(	!(engine = (IVEngineServer*)interfaceFactory(INTERFACEVERSION_VENGINESERVER, NULL)) ||
		!(gameeventmanager = (IGameEventManager *)interfaceFactory(INTERFACEVERSION_GAMEEVENTSMANAGER,NULL)) ||
		!(filesystem = (IFileSystem*)interfaceFactory(FILESYSTEM_INTERFACE_VERSION, NULL)) ||
		!(helpers = (IServerPluginHelpers*)interfaceFactory(INTERFACEVERSION_ISERVERPLUGINHELPERS, NULL)) || 
		!(enginetrace = (IEngineTrace *)interfaceFactory(INTERFACEVERSION_ENGINETRACE_SERVER,NULL)) ||
		!(randomStr = (IUniformRandomStream *)interfaceFactory(VENGINE_SERVER_RANDOM_INTERFACE_VERSION, NULL))
		)
	{
		return false; // we require all these interface to function
	}

	if ( playerinfomanager )
	{
		gpGlobals = playerinfomanager->GetGlobalVars();
	}

	//Set up global pointer to use in other classes
	pServerMan = &ServerMan;
	pTimerMan = &TimerMan;

	Msg("AddictMod 1.0 has been loaded, now prepare for action.\n");

	InitCVars( interfaceFactory ); // register any cvars we have defined
	MathLib_Init( 2.2f, 2.2f, 0.0f, 2.0f );
	return true;
}

//---------------------------------------------------------------------------------
// Purpose: called when the plugin is unloaded (turned off)
//---------------------------------------------------------------------------------
void CEmptyServerPlugin::Unload( void )
{
	gameeventmanager->RemoveListener( this ); // make sure we are unloaded from the event system
}

//---------------------------------------------------------------------------------
// Purpose: called when the plugin is paused (i.e should stop running but isn't unloaded)
//---------------------------------------------------------------------------------
void CEmptyServerPlugin::Pause( void )
{
}

//---------------------------------------------------------------------------------
// Purpose: called when the plugin is unpaused (i.e should start executing again)
//---------------------------------------------------------------------------------
void CEmptyServerPlugin::UnPause( void )
{
}

//---------------------------------------------------------------------------------
// Purpose: the name of this plugin, returned in "plugin_print" command
//---------------------------------------------------------------------------------
const char *CEmptyServerPlugin::GetPluginDescription( void )
{
	return "Addict Mod: Obviously made by Addict. This plugin does things. At least I think it does.";
}

//---------------------------------------------------------------------------------
// Purpose: called on level start
//---------------------------------------------------------------------------------
void CEmptyServerPlugin::LevelInit( char const *pMapName )
{
	ServerMan.levelInit(pMapName);
}

//---------------------------------------------------------------------------------
// Purpose: called on level start, when the server is ready to accept client connections
//		edictCount is the number of entities in the level, clientMax is the max client count
//---------------------------------------------------------------------------------
void CEmptyServerPlugin::ServerActivate( edict_t *pEdictList, int edictCount, int clientMax )
{
	ServerMan.serverActivate(clientMax);
}

//---------------------------------------------------------------------------------
// Purpose: called once per server frame, do recurring work here (like checking for timeouts)
//---------------------------------------------------------------------------------
void CEmptyServerPlugin::GameFrame( bool simulating )
{
	//Activate our counter
	pTimerMan->gameFrame(gpGlobals->curtime);

	if ( simulating )
	{
		Bot_RunAll();
	}
}

//---------------------------------------------------------------------------------
// Purpose: called on level end (as the server is shutting down or going to a new map)
//---------------------------------------------------------------------------------
void CEmptyServerPlugin::LevelShutdown( void ) // !!!!this can get called multiple times per map change
{
	gameeventmanager->RemoveListener( this );
}

//---------------------------------------------------------------------------------
// Purpose: called when a client spawns into a server (i.e as they begin to play)
//---------------------------------------------------------------------------------
void CEmptyServerPlugin::ClientActive( edict_t *pEntity )
{
	//Bot Detection
	if(ServerMan.entityToSlot(pEntity) == -1 && !pEntity->IsFree())
	{
		IPlayerInfo * botCheck = playerinfomanager->GetPlayerInfo(pEntity);
		int newBot = ServerMan.playerConnect(pEntity,botCheck->GetName(),"1.B.O.T",true);
		ServerMan.PlayerList[newBot]->setPlayerState(2);
	}
}

//---------------------------------------------------------------------------------
// Purpose: called when a client leaves a server (or is timed out)
//---------------------------------------------------------------------------------
void CEmptyServerPlugin::ClientDisconnect( edict_t *pEntity )
{
	ServerMan.playerDisconnect(pEntity);
}

//---------------------------------------------------------------------------------
// Purpose: called on 
//---------------------------------------------------------------------------------
void CEmptyServerPlugin::ClientPutInServer( edict_t *pEntity, char const *playername )
{
	int index = ServerMan.entityToSlot(pEntity);
	if(index != -1)
	{
		ServerMan.PlayerList[index]->setPlayerState(2);
	}
}

//---------------------------------------------------------------------------------
// Purpose: called on level start
//---------------------------------------------------------------------------------
void CEmptyServerPlugin::SetCommandClient( int index )
{
	m_iClientCommandIndex = index;
}

//---------------------------------------------------------------------------------
// Purpose: called on level start
//---------------------------------------------------------------------------------
void CEmptyServerPlugin::ClientSettingsChanged( edict_t *pEdict )
{

}

//---------------------------------------------------------------------------------
// Purpose: called when a client joins a server
//---------------------------------------------------------------------------------
PLUGIN_RESULT CEmptyServerPlugin::ClientConnect( bool *bAllowConnect, edict_t *pEntity, const char *pszName, const char *pszAddress, char *reject, int maxrejectlen )
{
	ServerMan.playerConnect(pEntity,pszName,pszAddress,false);
	return PLUGIN_CONTINUE;
}

//---------------------------------------------------------------------------------
// Purpose: called when a client types in a command (only a subset of commands however, not CON_COMMAND's)
//---------------------------------------------------------------------------------
PLUGIN_RESULT CEmptyServerPlugin::ClientCommand( edict_t *pEntity )
{

	return PLUGIN_CONTINUE;
}

//---------------------------------------------------------------------------------
// Purpose: called when a client is authenticated
//---------------------------------------------------------------------------------
PLUGIN_RESULT CEmptyServerPlugin::NetworkIDValidated( const char *pszUserName, const char *pszNetworkID )
{
	ServerMan.networkIdVerified(pszUserName,pszNetworkID);
	return PLUGIN_CONTINUE;
}

//---------------------------------------------------------------------------------
// Purpose: called when an event is fired
//---------------------------------------------------------------------------------
void CEmptyServerPlugin::FireGameEvent( KeyValues * event )
{
	ServerMan.serverGameEvent(anEvent); //This feeds info so player array can be up to date
}