#! /usr/bin/perl

#  Copyright (C) 2008 Joey Schulze <joey@infodrom.org>
#
#  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, USA.

# Source: http://www.infodrom.org/Infodrom/tools/munin.html

# Supported configuration:
#
#   [hylafax]
#   user root
#   env.faxstat /usr/bin/faxstat

use strict;
use warnings;

my $faxstat = '/usr/bin/faxstat';

$faxstat = $ENV{'faxstat'} if exists $ENV{'faxstat'};

sub gather
{
    my $q = 0;

    if (open(my $sendq, "$faxstat -s|")) {
	while (<$sendq>) {
	    next unless /^\d/;
	    chomp;
	    $q++;
	}
	close $sendq;
    }

    return $q;
}

if (@ARGV) {
    if ($ARGV[0] eq 'autoconf' || $ARGV[0] eq 'detect') {
	if (system("$faxstat > /dev/null 2>&1") == 0) {
	    print "yes\n";
	    exit 0;
	} else {
	    print "no\n";
	    exit 1;
	}
    } elsif ($ARGV[0] eq 'config') {
	print "graph_title HylaFAX Queue\n";
	print "graph_args -l 0\n";
	print "graph_vlabel Faxes in queue\n";
	print "graph_category hylafax\n";
	print "graph_info This graph shows the number of unsent fax messages in the queue.\n";
	print "sendq.label Send Queue\n";
	exit 0;
    }
}

printf "sendq.value %d\n", gather;