/*
===========================================================================
Copyright (C) 1999-2005 Id Software, Inc.
Copyright (C) 2002-2021 Q3Rally Team (Per Thormann - q3rally@gmail.com)

This file is part of q3rally source code.

q3rally source code 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.

q3rally source code 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 q3rally; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
===========================================================================
*/
//
#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.spectatorNum,
		client->sess.spectatorState,
		client->sess.spectatorClient,
		client->sess.wins,
		client->sess.losses,
		client->sess.teamLeader
		);

	var = va( "session%i", (int)(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;
	int teamLeader;
	int spectatorState;
	int sessionTeam;

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

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

	client->sess.sessionTeam = (team_t)sessionTeam;
	client->sess.spectatorState = (spectatorState_t)spectatorState;
	client->sess.teamLeader = (qboolean)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;

	// check for team preference, mainly for bots
	value = Info_ValueForKey( userinfo, "teampref" );

	// check for human's team preference set by start server menu
	if ( !value[0] && g_localTeamPref.string[0] && client->pers.localClient ) {
		value = g_localTeamPref.string;

		// clear team so it's only used once
		trap_Cvar_Set( "g_localTeamPref", "" );
	}

	// initial team determination
	if ( g_gametype.integer >= GT_TEAM ) {
		// always spawn as spectator in team games
		sess->sessionTeam = TEAM_SPECTATOR;
		sess->spectatorState = SPECTATOR_FREE;

// STONELANCE
		// can only spawn as spectator after race starts
//		if ( value[0] || g_teamAutoJoin.integer ) {
		if ( ( value[0] || g_teamAutoJoin.integer ) && !( isRallyRace() && level.startRaceTime ) ) {
// END
			SetTeam( &g_entities[client - level.clients], value );
		}
	} else {
// STONELANCE
		if ( value[0] == 's' ) {
//		if ( value[0] == 's' && (!isRallyRace() && !g_gametype.integer == GT_DERBY)) {
// END
			// a willing spectator, not a waiting-in-line
			sess->sessionTeam = TEAM_SPECTATOR;
		} else {
			switch ( g_gametype.integer ) {
			default:
// STONELANCE - removed gametype
//			case GT_FFA:
			case GT_RACING:
			case GT_RACING_DM:
			case GT_DERBY:
				if ( g_maxGameClients.integer > 0 && 
					level.numNonSpectatorClients >= g_maxGameClients.integer ) {
					sess->sessionTeam = TEAM_SPECTATOR;
				}
				else if (level.startRaceTime){
					sess->sessionTeam = TEAM_SPECTATOR;
				} else {
					sess->sessionTeam = TEAM_FREE;
				}
				break;

			case GT_DEATHMATCH:
// END
			case GT_SINGLE_PLAYER:
				if ( g_maxGameClients.integer > 0 && 
					level.numNonSpectatorClients >= g_maxGameClients.integer ) {
					sess->sessionTeam = TEAM_SPECTATOR;
				} else {
					sess->sessionTeam = TEAM_FREE;
				}
				break;
// STONELANCE - removed gametype
/*
			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;
*/
// END
			}
		}

		sess->spectatorState = SPECTATOR_FREE;
	}

	AddTournamentQueue(client);

	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] );
		}
	}
}