// Copyright (C) 1999-2000 Id Software, Inc.
//

/*
 *  Portions Copyright (C) 2000-2001 Tim Angus
 *
 *  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, 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 the Free Software
 *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 */

/*  To assertain which portions are licensed under the GPL and which are
 *  licensed by Id Software, Inc. please run a diff between the equivalent
 *  versions of the "Tremulous" modification and the unmodified "Quake3"
 *  game source code.
 */
                    
#include "g_local.h"


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

  SESSION DATA

Session data is the only data that stays persistant across level loads
and tournament restarts.
=======================================================================
*/

/*
================
G_WriteClientSessionData

Called on game shutdown
================
*/
void G_WriteClientSessionData( gclient_t *client ) {
	const char	*s;
	const char	*var;

	s = va("%i %i %i %i %i %i %i", 
		client->sess.sessionTeam,
		client->sess.spectatorTime,
		client->sess.spectatorState,
		client->sess.spectatorClient,
		client->sess.wins,
		client->sess.losses,
    client->sess.teamLeader
		);

	var = va( "session%i", client - level.clients );

	trap_Cvar_Set( var, s );
}

/*
================
G_ReadSessionData

Called on a reconnect
================
*/
void G_ReadSessionData( gclient_t *client ) {
	char	s[MAX_STRING_CHARS];
	const char	*var;

	var = va( "session%i", client - level.clients );
	trap_Cvar_VariableStringBuffer( var, s, sizeof(s) );

	sscanf( s, "%i %i %i %i %i %i %i", 
		&client->sess.sessionTeam,
		&client->sess.spectatorTime,
		&client->sess.spectatorState,
		&client->sess.spectatorClient,
		&client->sess.wins,
		&client->sess.losses,
    &client->sess.teamLeader
		);
}


/*
================
G_InitSessionData

Called on a first-time connect
================
*/
void G_InitSessionData( gclient_t *client, char *userinfo ) {
	clientSession_t	*sess;
	const char		*value;

	sess = &client->sess;

	// initial team determination
	if ( g_gametype.integer >= GT_TEAM ) {
		if ( g_teamAutoJoin.integer ) {
			sess->sessionTeam = PickTeam( -1 );
			BroadcastTeamChange( client, -1 );
		} else {
			// always spawn as spectator in team games
			sess->sessionTeam = TEAM_SPECTATOR;	
		}
	} else {
		value = Info_ValueForKey( userinfo, "team" );
		if ( value[0] == 's' ) {
			// a willing spectator, not a waiting-in-line
			sess->sessionTeam = TEAM_SPECTATOR;
		} else {
			switch ( g_gametype.integer ) {
			default:
			case GT_FFA:
			case GT_SINGLE_PLAYER:
				if ( g_maxGameClients.integer > 0 && 
					level.numNonSpectatorClients >= g_maxGameClients.integer ) {
					sess->sessionTeam = TEAM_SPECTATOR;
				} else {
					sess->sessionTeam = TEAM_FREE;
				}
				break;
			case GT_TOURNAMENT:
				// if the game is full, go into a waiting mode
				if ( level.numNonSpectatorClients >= 2 ) {
					sess->sessionTeam = TEAM_SPECTATOR;
				} else {
					sess->sessionTeam = TEAM_FREE;
				}
				break;
			}
		}
	}

	sess->spectatorState = SPECTATOR_FREE;
	sess->spectatorTime = level.time;

	G_WriteClientSessionData( client );
}


/*
==================
G_InitWorldSession

==================
*/
void G_InitWorldSession( void ) {
	char	s[MAX_STRING_CHARS];
	int			gt;

	trap_Cvar_VariableStringBuffer( "session", s, sizeof(s) );
	gt = atoi( s );
	
	// if the gametype changed since the last session, don't use any
	// client sessions
	if ( g_gametype.integer != gt ) {
		level.newSession = qtrue;
		G_Printf( "Gametype changed, clearing session data.\n" );
	}
}

/*
==================
G_WriteSessionData

==================
*/
void G_WriteSessionData( void ) {
	int		i;

	trap_Cvar_Set( "session", va("%i", g_gametype.integer) );

	for ( i = 0 ; i < level.maxclients ; i++ ) {
		if ( level.clients[i].pers.connected == CON_CONNECTED ) {
			G_WriteClientSessionData( &level.clients[i] );
		}
	}
}