/*
	sv_ccmds.c

	(description)

	Copyright (C) 1996-1997  Id Software, Inc.

	This program is free software; you can redistribute it and/or
	modify it under the terms of the GNU General Public License
	as published by the Free Software Foundation; either version 2
	of the License, or (at your option) any later version.

	This program is distributed in the hope that it will be useful,
	but WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

	See the GNU General Public License for more details.

	You should have received a copy of the GNU General Public License
	along with this program; if not, write to:

		Free Software Foundation, Inc.
		59 Temple Place - Suite 330
		Boston, MA  02111-1307, USA

	$Id$
*/

#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include "server.h"
#include "crc.h"
#include "msg.h"
#include "world.h"
#include "commdef.h"
#include "cmd.h"
#include "sys.h"
#include "pmove.h"
#include "compat.h"
#include "va.h"
#include "quakefs.h"
#include "bothdefs.h"
#include "qendian.h"
#include "qargs.h"

#include <stdlib.h>
#include <string.h>
#ifdef HAVE_STRINGS_H
#include <strings.h>
#endif

qboolean	sv_allow_cheats;

int fp_messages=4, fp_persecond=4, fp_secondsdead=10;
char fp_msg[255] = { 0 };
extern cvar_t *cl_warncmd;
extern redirect_t sv_redirected;


/*
===============================================================================

OPERATOR CONSOLE ONLY COMMANDS

These commands can only be entered from stdin or by a remote operator datagram
===============================================================================
*/

/*
====================
SV_SetMaster_f

Make a master server current
====================
*/
void SV_SetMaster_f (void)
{
	char	data[2];
	int		i;

	memset (&master_adr, 0, sizeof(master_adr));

	for (i=1 ; i<Cmd_Argc() ; i++)
	{
		if (!strcmp(Cmd_Argv(i), "none") || !NET_StringToAdr (Cmd_Argv(i), &master_adr[i-1]))
		{
			Con_Printf ("Setting nomaster mode.\n");
			return;
		}
		if (master_adr[i-1].port == 0)
			master_adr[i-1].port = BigShort (27000);

		Con_Printf ("Master server at %s\n", NET_AdrToString (master_adr[i-1]));

		Con_Printf ("Sending a ping.\n");

		data[0] = A2A_PING;
		data[1] = 0;
		NET_SendPacket (2, data, master_adr[i-1]);
	}

	svs.last_heartbeat = -99999;
}


/*
==================
SV_Quit_f
==================
*/
void SV_Quit_f (void)
{
	SV_FinalMessage ("server shutdown\n");
	Con_Printf ("Shutting down.\n");
	SV_Shutdown ();
	Sys_Quit ();
}

/*
============
SV_Logfile_f
============
*/
void SV_Logfile_f (void)
{
	char	name[MAX_OSPATH];

	if (sv_logfile)
	{
		Con_Printf ("File logging off.\n");
		Qclose (sv_logfile);
		sv_logfile = NULL;
		return;
	}

	snprintf (name, sizeof(name), "%s/qconsole.log", com_gamedir);
	Con_Printf ("Logging text to %s.\n", name);
	sv_logfile = Qopen (name, "w");
	if (!sv_logfile)
		Con_Printf ("failed.\n");
}


/*
============
SV_Fraglogfile_f
============
*/
void SV_Fraglogfile_f (void)
{
	char	name[MAX_OSPATH];
	int		i;

	if (sv_fraglogfile)
	{
		Con_Printf ("Frag file logging off.\n");
		Qclose (sv_fraglogfile);
		sv_fraglogfile = NULL;
		return;
	}

	// find an unused name
	for (i=0 ; i<1000 ; i++)
	{
		snprintf (name, sizeof(name), "%s/frag_%i.log", com_gamedir, i);
		sv_fraglogfile = Qopen (name, "r");
		if (!sv_fraglogfile)
		{	// can't read it, so create this one
			sv_fraglogfile = Qopen (name, "w");
			if (!sv_fraglogfile)
				i=1000;	// give error
			break;
		}
		Qclose (sv_fraglogfile);
	}
	if (i==1000)
	{
		Con_Printf ("Can't open any logfiles.\n");
		sv_fraglogfile = NULL;
		return;
	}

	Con_Printf ("Logging frags to %s.\n", name);
}


/*
==================
SV_SetPlayer

Sets host_client and sv_player to the player with idnum Cmd_Argv(1)
==================
*/
qboolean SV_SetPlayer (void)
{
	client_t	*cl;
	int			i;
	int			idnum;

	idnum = atoi(Cmd_Argv(1));

	for (i=0,cl=svs.clients ; i<MAX_CLIENTS ; i++,cl++)
	{
		if (!cl->state)
			continue;
		if (cl->userid == idnum)
		{
			host_client = cl;
			sv_player = host_client->edict;
			return true;
		}
	}
	Con_Printf ("Userid %i is not on the server\n", idnum);
	return false;
}


/*
==================
SV_God_f

Sets client to godmode
==================
*/
void SV_God_f (void)
{
	if (!sv_allow_cheats)
	{
		Con_Printf ("You must run the server with -cheats to enable this command.\n");
		return;
	}

	if (!SV_SetPlayer ())
		return;

	sv_player->v.flags = (int)sv_player->v.flags ^ FL_GODMODE;
	if (!((int)sv_player->v.flags & FL_GODMODE) )
		SV_ClientPrintf (host_client, PRINT_HIGH, "godmode OFF\n");
	else
		SV_ClientPrintf (host_client, PRINT_HIGH, "godmode ON\n");
}


void SV_Noclip_f (void)
{
	if (!sv_allow_cheats)
	{
		Con_Printf ("You must run the server with -cheats to enable this command.\n");
		return;
	}

	if (!SV_SetPlayer ())
		return;

	if (sv_player->v.movetype != MOVETYPE_NOCLIP)
	{
		sv_player->v.movetype = MOVETYPE_NOCLIP;
		SV_ClientPrintf (host_client, PRINT_HIGH, "noclip ON\n");
	}
	else
	{
		sv_player->v.movetype = MOVETYPE_WALK;
		SV_ClientPrintf (host_client, PRINT_HIGH, "noclip OFF\n");
	}
}


/*
==================
SV_Give_f
==================
*/
void SV_Give_f (void)
{
	char	*t;
	int		v;
	
	if (!sv_allow_cheats)
	{
		Con_Printf ("You must run the server with -cheats to enable this command.\n");
		return;
	}
	
	if (!SV_SetPlayer ())
		return;

	t = Cmd_Argv(2);
	v = atoi (Cmd_Argv(3));
	
	switch (t[0])
	{
	case '2':
	case '3':
	case '4':
	case '5':
	case '6':
	case '7':
	case '8':
	case '9':
		sv_player->v.items = (int)sv_player->v.items | IT_SHOTGUN<< (t[0] - '2');
		break;
	
	case 's':
		sv_player->v.ammo_shells = v;
		break;		
	case 'n':
		sv_player->v.ammo_nails = v;
		break;		
	case 'r':
		sv_player->v.ammo_rockets = v;
		break;		
	case 'h':
		sv_player->v.health = v;
		break;		
	case 'c':
		sv_player->v.ammo_cells = v;
		break;		
	}
}

// Use this to keep track of current level  --KB
static char	curlevel[MAX_QPATH] = "";
/*
======================
SV_Map_f

handle a 
map <mapname>
command from the console or progs.
======================
*/
void SV_Map_f (void)
{
	char	level[MAX_QPATH];
	char	expanded[MAX_QPATH];
	QFile	*f;

	if (Cmd_Argc() != 2)
	{
		Con_Printf ("map <levelname> : continue game on a new level\n");
		return;
	}
	strcpy (level, Cmd_Argv(1));

	// check to make sure the level exists
	snprintf (expanded, sizeof(expanded), "maps/%s.bsp", level);
	COM_FOpenFile (expanded, &f);
	if (!f)
	{
		Con_Printf ("Can't find %s\n", expanded);
		// If curlevel == level, something is SCREWED!  --KB
		if (stricmp (level, curlevel) == 0)
			SV_Error ("map: cannot restart level\n");
		else
			Cbuf_AddText (va("map %s", curlevel));
		return;
	}
	Qclose (f);

	SV_BroadcastCommand ("changing\n");
	SV_SendMessagesToAll ();

	strcpy (curlevel, level);
	SV_SpawnServer (level);

	SV_BroadcastCommand ("reconnect\n");
}


/*
==================
SV_Kick_f

Kick a user off of the server
==================
*/
void SV_Kick_f (void)
{
	int			i;
	client_t	*cl;
	int			uid;

	uid = atoi(Cmd_Argv(1));
	
	for (i = 0, cl = svs.clients; i < MAX_CLIENTS; i++, cl++)
	{
		if (!cl->state)
			continue;
		if (cl->userid == uid)
		{
			SV_BroadcastPrintf (PRINT_HIGH, "%s was kicked\n", cl->name);
			// print directly, because the dropped client won't get the
			// SV_BroadcastPrintf message
			SV_ClientPrintf (cl, PRINT_HIGH, "You were kicked from the game\n");
			SV_DropClient (cl); 
			return;
		}
	}

	Con_Printf ("Couldn't find user number %i\n", uid);
}


/*
================
SV_Status_f
================
*/
void SV_Status_f (void)
{
	int			i;
	client_t	*cl;
	float		cpu, avg, pak;
	char		*s;


	cpu = (svs.stats.latched_active+svs.stats.latched_idle);
	if (cpu)
		cpu = 100*svs.stats.latched_active/cpu;
	avg = 1000*svs.stats.latched_active / STATFRAMES;
	pak = (float)svs.stats.latched_packets/ STATFRAMES;

	Con_Printf ("net address      : %s\n",NET_AdrToString (net_local_adr));
	Con_Printf ("cpu utilization  : %3i%%\n",(int)cpu);
	Con_Printf ("avg response time: %i ms\n",(int)avg);
	Con_Printf ("packets/frame    : %5.2f (%d)\n", pak, num_prstr);

// min fps lat drp
	if (sv_redirected != RD_NONE) {
		// most remote clients are 40 columns
		//           0123456789012345678901234567890123456789
		Con_Printf ("name               userid frags\n");
		Con_Printf ("  address          rate ping drop\n");
		Con_Printf ("  ---------------- ---- ---- -----\n");
		for (i=0,cl=svs.clients ; i<MAX_CLIENTS ; i++,cl++)
		{
			if (!cl->state)
				continue;

			Con_Printf ("%-16.16s  ", cl->name);

			Con_Printf ("%6i %5i", cl->userid, (int)cl->edict->v.frags);
			if (cl->spectator)
				Con_Printf(" (s)\n");
			else
				Con_Printf("\n");

			s = NET_BaseAdrToString ( cl->netchan.remote_address);
			Con_Printf ("  %-16.16s", s);
			if (cl->state == cs_connected)
			{
				Con_Printf ("CONNECTING\n");
				continue;
			}
			if (cl->state == cs_zombie)
			{
				Con_Printf ("ZOMBIE\n");
				continue;
			}
			Con_Printf ("%4i %4i %5.2f\n"
				, (int)(1000*cl->netchan.frame_rate)
				, (int)SV_CalcPing (cl)
				, 100.0*cl->netchan.drop_count / cl->netchan.incoming_sequence);
		}
	} else {
		Con_Printf ("frags userid address         name            rate ping drop  qport\n");
		Con_Printf ("----- ------ --------------- --------------- ---- ---- ----- -----\n");
		for (i=0,cl=svs.clients ; i<MAX_CLIENTS ; i++,cl++)
		{
			if (!cl->state)
				continue;
			Con_Printf ("%5i %6i ", (int)cl->edict->v.frags,  cl->userid);

			s = NET_BaseAdrToString ( cl->netchan.remote_address);

			Con_Printf ("%-15.15s ", s);

			Con_Printf ("%-15.15s ", cl->name);

			if (cl->state == cs_connected)
			{
				Con_Printf ("CONNECTING\n");
				continue;
			}
			if (cl->state == cs_zombie)
			{
				Con_Printf ("ZOMBIE\n");
				continue;
			}
			Con_Printf ("%4i %4i %3.1f %4i"
				, (int)(1000*cl->netchan.frame_rate)
				, (int)SV_CalcPing (cl)
				, 100.0*cl->netchan.drop_count / cl->netchan.incoming_sequence
				, cl->netchan.qport);
			if (cl->spectator)
				Con_Printf(" (s)\n");
			else
				Con_Printf("\n");


		}
	}
	Con_Printf ("\n");
}

/*
==================
SV_ConSay_f
==================
*/
void SV_ConSay_f(void)
{
	client_t *client;
	int		j;
	char	*p;
	char	text[1024];

	if (Cmd_Argc () < 2)
		return;

	strcpy (text, "console: ");
	p = Cmd_Args();

	if (*p == '"')
	{
		p++;
		p[strlen(p)-1] = 0;
	}

	strncat (text,  p, sizeof(text) - strlen (text));

	for (j = 0, client = svs.clients; j < MAX_CLIENTS; j++, client++)
	{
		if (client->state != cs_spawned)
			continue;
		SV_ClientPrintf(client, PRINT_CHAT, "%s\n", text);
	}
}


/*
==================
SV_Heartbeat_f
==================
*/
void SV_Heartbeat_f (void)
{
	svs.last_heartbeat = -9999;
}

void SV_SendServerInfoChange(char *key, char *value)
{
	if (!sv.state)
		return;

	MSG_WriteByte (&sv.reliable_datagram, svc_serverinfo);
	MSG_WriteString (&sv.reliable_datagram, key);
	MSG_WriteString (&sv.reliable_datagram, value);
}

/*
===========
SV_Serverinfo_f

  Examine or change the serverinfo string
===========
*/
char *CopyString(char *s);
void SV_Serverinfo_f (void)
{
	cvar_t	*var;

	if (Cmd_Argc() == 1)
	{
		Con_Printf ("Server info settings:\n");
		Info_Print (svs.info);
		return;
	}

	if (Cmd_Argc() != 3)
	{
		Con_Printf ("usage: serverinfo [ <key> <value> ]\n");
		return;
	}

	if (Cmd_Argv(1)[0] == '*')
	{
		Con_Printf ("Star variables cannot be changed.\n");
		return;
	}
	Info_SetValueForKey (svs.info, Cmd_Argv(1), Cmd_Argv(2), MAX_SERVERINFO_STRING);

	// if this is a cvar, change it too	
	var = Cvar_FindVar (Cmd_Argv(1));
	if (var)
		Cvar_Set (var, Cmd_Argv(2));

	if (!var || !(var->flags & CVAR_SERVERINFO))
		// Cvar_Set will send the change if CVAR_SERVERINFO is set
		SV_SendServerInfoChange(Cmd_Argv(1), Cmd_Argv(2));
}


/*
===========
SV_Serverinfo_f

  Examine or change the serverinfo string
===========
*/
char *CopyString(char *s);
void SV_Localinfo_f (void)
{
	if (Cmd_Argc() == 1)
	{
		Con_Printf ("Local info settings:\n");
		Info_Print (localinfo);
		return;
	}

	if (Cmd_Argc() != 3)
	{
		Con_Printf ("usage: localinfo [ <key> <value> ]\n");
		return;
	}

	if (Cmd_Argv(1)[0] == '*')
	{
		Con_Printf ("Star variables cannot be changed.\n");
		return;
	}
	Info_SetValueForKey (localinfo, Cmd_Argv(1), Cmd_Argv(2), MAX_LOCALINFO_STRING);
}


/*
===========
SV_User_f

Examine a users info strings
===========
*/
void SV_User_f (void)
{
	if (Cmd_Argc() != 2)
	{
		Con_Printf ("Usage: info <userid>\n");
		return;
	}

	if (!SV_SetPlayer ())
		return;

	Info_Print (host_client->userinfo);
}

/*
================
SV_Gamedir

Sets the fake *gamedir to a different directory.
================
*/
void SV_Gamedir (void)
{
	char			*dir;

	if (Cmd_Argc() == 1)
	{
		Con_Printf ("Current *gamedir: %s\n", Info_ValueForKey (svs.info, "*gamedir"));
		return;
	}

	if (Cmd_Argc() != 2)
	{
		Con_Printf ("Usage: sv_gamedir <newgamedir>\n");
		return;
	}

	dir = Cmd_Argv(1);

	if (strstr(dir, "..") || strstr(dir, "/")
		|| strstr(dir, "\\") || strstr(dir, ":") )
	{
		Con_Printf ("*Gamedir should be a single filename, not a path\n");
		return;
	}

	Info_SetValueForStarKey (svs.info, "*gamedir", dir, MAX_SERVERINFO_STRING);
}

/*
================
SV_Floodport_f

Sets the gamedir and path to a different directory.
================
*/

void SV_Floodprot_f (void)
{
	int arg1, arg2, arg3;
	
	if (Cmd_Argc() == 1)
	{
		if (fp_messages) {
			Con_Printf ("Current floodprot settings: \nAfter %d msgs per %d seconds, silence for %d seconds\n", 
				fp_messages, fp_persecond, fp_secondsdead);
			return;
		} else
			Con_Printf ("No floodprots enabled.\n");
	}

	if (Cmd_Argc() != 4)
	{
		Con_Printf ("Usage: floodprot <# of messages> <per # of seconds> <seconds to silence>\n");
		Con_Printf ("Use floodprotmsg to set a custom message to say to the flooder.\n");
		return;
	}

	arg1 = atoi(Cmd_Argv(1));
	arg2 = atoi(Cmd_Argv(2));
	arg3 = atoi(Cmd_Argv(3));

	if (arg1<=0 || arg2 <= 0 || arg3<=0) {
		Con_Printf ("All values must be positive numbers\n");
		return;
	}
	
	if (arg1 > 10) {
		Con_Printf ("Can only track up to 10 messages.\n");
		return;
	}

	fp_messages	= arg1;
	fp_persecond = arg2;
	fp_secondsdead = arg3;
}

void SV_Floodprotmsg_f (void)
{
	if (Cmd_Argc() == 1) {
		Con_Printf("Current msg: %s\n", fp_msg);
		return;
	} else if (Cmd_Argc() != 2) {
		Con_Printf("Usage: floodprotmsg \"<message>\"\n");
		return;
	}
	snprintf (fp_msg, sizeof(fp_msg), "%s", Cmd_Argv(1));
}

/*
================
SV_Snap
================
*/
void SV_Snap (int uid)
{
	client_t *cl;
	char		pcxname[80]; 
	char		checkname[MAX_OSPATH];
	int			i;

	for (i = 0, cl = svs.clients; i < MAX_CLIENTS; i++, cl++)
	{
		if (!cl->state)
			continue;
		if (cl->userid == uid)
			break;
	}
	if (i >= MAX_CLIENTS) {
		Con_Printf ("userid not found\n");
		return;
	}

	snprintf (pcxname, sizeof(pcxname), "%d-00.pcx", uid);

	snprintf (checkname, sizeof(checkname), "%s/snap", com_gamedir);
	COM_CreatePath (va ("%s/dummy", checkname));
		
	for (i=0 ; i<=99 ; i++) 
	{ 
		pcxname[strlen(pcxname) - 6] = i/10 + '0'; 
		pcxname[strlen(pcxname) - 5] = i%10 + '0'; 
		snprintf (checkname, sizeof(checkname), "%s/snap/%s", com_gamedir, pcxname);
		if (Sys_FileTime(checkname) == -1)
			break;	// file doesn't exist
	} 
	if (i==100) 
	{
		Con_Printf ("Snap: Couldn't create a file, clean some out.\n"); 
		return;
	}
	strcpy(cl->uploadfn, checkname);

	memcpy(&cl->snap_from, &net_from, sizeof(net_from));
	if (sv_redirected != RD_NONE)
		cl->remote_snap = true;
	else
		cl->remote_snap = false;

	ClientReliableWrite_Begin (cl, svc_stufftext, 24);
	ClientReliableWrite_String (cl, "cmd snap");
	Con_Printf ("Requesting snap from user %d...\n", uid);
}

/*
================
SV_Snap_f
================
*/
void SV_Snap_f (void)
{
	int			uid;

	if (Cmd_Argc() != 2)
	{
		Con_Printf ("Usage:  snap <userid>\n");
		return;
	}

	uid = atoi(Cmd_Argv(1));

	SV_Snap(uid);
}

/*
================
SV_Snap
================
*/
void SV_SnapAll_f (void)
{
	client_t *cl;
	int			i;

	for (i = 0, cl = svs.clients; i < MAX_CLIENTS; i++, cl++)
	{
		if (cl->state < cs_connected || cl->spectator)
			continue;
		SV_Snap(cl->userid);
	}
}

/*
==================
SV_InitOperatorCommands
==================
*/
void SV_InitOperatorCommands (void)
{
	if (COM_CheckParm ("-cheats"))
	{
		sv_allow_cheats = true;
		Info_SetValueForStarKey (svs.info, "*cheats", "ON", MAX_SERVERINFO_STRING);
	}

	Cmd_AddCommand ("logfile", SV_Logfile_f);
	Cmd_AddCommand ("fraglogfile", SV_Fraglogfile_f);

	Cmd_AddCommand ("snap", SV_Snap_f);
	Cmd_AddCommand ("snapall", SV_SnapAll_f);
	Cmd_AddCommand ("kick", SV_Kick_f);
	Cmd_AddCommand ("status", SV_Status_f);

	Cmd_AddCommand ("map", SV_Map_f);
	Cmd_AddCommand ("setmaster", SV_SetMaster_f);

	Cmd_AddCommand ("say", SV_ConSay_f);
	Cmd_AddCommand ("heartbeat", SV_Heartbeat_f);
	Cmd_AddCommand ("quit", SV_Quit_f);
	Cmd_AddCommand ("god", SV_God_f);
	Cmd_AddCommand ("give", SV_Give_f);
	Cmd_AddCommand ("noclip", SV_Noclip_f);
	Cmd_AddCommand ("serverinfo", SV_Serverinfo_f);
	Cmd_AddCommand ("localinfo", SV_Localinfo_f);
	Cmd_AddCommand ("user", SV_User_f);
	Cmd_AddCommand ("sv_gamedir", SV_Gamedir);
	Cmd_AddCommand ("floodprot", SV_Floodprot_f);
	Cmd_AddCommand ("floodprotmsg", SV_Floodprotmsg_f);
	Cmd_AddCommand ("maplist", COM_Maplist_f);

	cl_warncmd = Cvar_Get ("cl_warncmd", "1", CVAR_NONE, "dunno. equiv to sh -x?");  // FIXME poor description
}