#!/usr/bin/perl -w
#
# Copyright (C) 2009 Paul McCormack <paul@paulmccormack.com>
#
# 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; version 2 dated June,
# 1991.
#
# 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.
#
# If you improve this script please send your version to my email address
# with the copyright notice upgrade with your name.
#
# Plugin to monitor number of sip peers registered
#
#
#%# family=asterisk

use strict;

if ($ARGV[0] and $ARGV[0] eq "autoconf")
{
        print "yes\n";
        exit 0;
}

if ($ARGV[0] and $ARGV[0] eq "config")
{
    print "graph_title Asterisk active channels\n";
    print "graph_args --base 1000 -l 0\n";
    print "graph_vlabel peers\n";
    print "graph_category asterisk\n";
    print "channels.label peers online\n";
    exit 0;
}

open(LINE, 'asterisk -rx "core show channels"|');

my ($active)=(0,0);

while (<LINE>)
{
    $active = $1 if ($_ =~ /(\d+) active channels/);
}

close(LINE);

print "channels.value $active\n";