/************************************************************************
 *   IRC - Internet Relay Chat, modules/m_silence.c
 *
 *   Copyright (C) 2000-2003 TR-IRCD Development
 *
 *   Copyright (C) 1990 Jarkko Oikarinen and
 *                      University of Oulu, Co Center
 *
 *   See file AUTHORS in IRC package for additional names of
 *   the programmers.
 *
 *   This program is free softwmare; 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., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

#include "struct.h"
#include "common.h"
#include "sys.h"
#include "numeric.h"
#include "msg.h"
#include "channel.h"
#include "h.h"

static char *token = TOK1_SILENCE;

static struct Message _msgtab[] = {
    {MSG_SILENCE, 0, MAXPARA, M_SLOW, 0L,
     m_unregistered, m_silence, m_silence, m_silence, m_ignore}
};

#ifndef STATIC_MODULES

char *_version = "$Revision: 1.3 $";

void _modinit(void)
{
    mod_add_cmd(_msgtab);
    tok1_msgtab[(u_char) *token].msg = _msgtab;
}

void _moddeinit(void)
{
    mod_del_cmd(_msgtab);
    tok1_msgtab[(u_char) *token].msg = NULL;
}
#else
void m_silence_init(void)
{
    mod_add_cmd(_msgtab);
    tok1_msgtab[(u_char) *token].msg = _msgtab;
}
#endif

/*
 * m_silence
 * * parv[0] = sender prefix
 * * From local client:
 * * parv[1] = mask (NULL sends the list)
 * * From remote client:
 * * parv[1] = nick that must be silenced
 * * parv[2] = mask
 */
int m_silence(aClient *cptr, aClient *sptr, int parc, char *parv[])
{
    dlink_node *lp;
    aClient *acptr = NULL;
    char c, *cp;

    if (MyClient(sptr)) {
	acptr = sptr;
	if (parc < 2 || *parv[1] == '\0' || (acptr = find_person(parv[1]))) {
	    if (!(acptr->user))
		return 0;
	    for (lp = acptr->user->silence.head; lp; lp = lp->next) {
		cp = lp->data;
		send_me_numeric(sptr, RPL_SILELIST, acptr->name, cp);
	    }
	    send_me_numeric(sptr, RPL_ENDOFSILELIST);
	    return 0;
	}
	cp = parv[1];
	c = *cp;
	if (c == '-' || c == '+')
	    cp++;
	else if (!(strchr(cp, '@') || strchr(cp, '.') || strchr(cp, '!')
		   || strchr(cp, '*'))) {
	    send_me_numeric(sptr, ERR_NOSUCHNICK, parv[1]);
	    return 0;
	} else
	    c = '+';
	cp = pretty_mask(cp);
	if ((c == '-' && !del_silence(sptr, cp)) || (c != '-' && !add_silence(sptr, cp))) {
	    sendto_one(sptr, ":%C %s %c%s", sptr, MSG_SILENCE, c, cp);
	    if (c == '-')
		sendto_serv_butone(NULL, sptr, TOK1_SILENCE, "* -%s", cp);
	}
    } else if (parc < 3 || *parv[2] == '\0') {
	send_me_numeric(sptr, ERR_NEEDMOREPARAMS, MSG_SILENCE);
	return -1;
    } else if ((c = *parv[2]) == '-' || (acptr = find_person(parv[1]))) {
	if (c == '-') {
	    if (!del_silence(sptr, parv[2] + 1))
		sendto_serv_butone(cptr, sptr, TOK1_SILENCE, "%s :%s", parv[1], parv[2]);
	} else {
	    (void) add_silence(sptr, parv[2]);
	    if (!MyClient(acptr))
		sendto_one_server(acptr, sptr, TOK1_SILENCE, "%s :%s", parv[1], parv[2]);
	}
    } else {
	send_me_numeric(sptr, ERR_NOSUCHNICK, parv[1]);
	return 0;
    }
    return 0;
}