/* Copyright (C) 2000-1 drscholl@users.sourceforge.net
   This is free software distributed under the terms of the
   GNU Public License.  See the file COPYING for details.

   $Id: hotlist.c,v 1.36 2001/02/15 08:39:45 drscholl Exp $ */

#include <string.h>
#include <stdlib.h>
#include "opennap.h"
#include "hashlist.h"
#include "debug.h"

/* 207/208 <nick> */
HANDLER (add_hotlist)
{
    hashlist_t *hotlist;
    USER   *user;
    LIST   *list;
    int     count;

    (void) tag;
    (void) len;
    ASSERT (validate_connection (con));
    CHECK_USER_CLASS ("add_hotlist");

    if (invalid_nick (pkt))
    {
	send_cmd (con, MSG_SERVER_NOSUCH, "hotlist add failed: invalid nick");
	return;
    }

    /* check to see if this user is over the hotlist limit */
    if (Max_Hotlist > 0
	&& (count = list_count (con->uopt->hotlist)) > Max_Hotlist)
    {
	/* send_cmd (con, MSG_SERVER_HOTLIST_ERROR, "%s", pkt); */
	return;
    }

    hotlist = hashlist_add (Hotlist, pkt, con);
    if (!hotlist)
    {
	/* already on list, or failure */
	return;
    }
    ASSERT (hashlist_validate (hotlist));

    /* add the hotlist entry to this particular users list */
    list = MALLOC (sizeof (LIST));
    if (!list)
    {
	OUTOFMEMORY ("add_hotlist");
	hashlist_remove (Hotlist, pkt, con);
	send_cmd (con, MSG_SERVER_HOTLIST_ERROR, "%s", pkt);
	return;
    }
    list->data = hotlist;
    con->uopt->hotlist = list_push (con->uopt->hotlist, list);

    /* ack the user who requested this */
    send_cmd (con, MSG_SERVER_HOTLIST_ACK, "%s", hotlist->key);

    /* check to see if this user is on so the client is notified
       immediately */
    user = hash_lookup (Users, hotlist->key);
    if (user)
    {
	ASSERT (validate_user (user));
	send_cmd (con, MSG_SERVER_USER_SIGNON, "%s %d", user->nick,
		  user->speed);
    }
}

/* 303 <nick> */
HANDLER (remove_hotlist)
{
    hashlist_t *hotlist;

    (void) tag;
    (void) len;
    ASSERT (validate_connection (con));
    CHECK_USER_CLASS ("remove_hotlist");

    hotlist = hash_lookup (Hotlist, pkt);
    if (!hotlist)
	return;
    ASSERT (hashlist_validate (hotlist));

    /* remove the hotlist entry from the user's personal list */
    con->uopt->hotlist = list_delete (con->uopt->hotlist, hotlist);

    hashlist_remove (Hotlist, hotlist->key, con);
}