#!/usr/bin/perl
#
# Munin plugin for members, messages and topics stats over a SMF forum database
#
# Copyright (C) 2013 - digger (http://simplemachines.ru)
# Based on Rowdy Schwachfer (http://rowdy.nl) 's Spotweb plugin
#
#
# 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, either version 3 of the License, 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, see <http://www.gnu.org/licenses/>.
#
#
# Configuration example
#
#[smf*]
#env.mysql               /usr/bin/mysql           # MySQL binary (optional)
#env.db                  smf                      # SMF database (required)
#env.db_prefix           smf_                     # SMF database prefix(required)
#env.db_user             myuser                   # SMF database user (required)
#env.db_password         mypassword               # SMF database password (required)

use strict;

my $MYSQL = $ENV{'mysql'} || "/usr/bin/mysql";
my $MYSQLOPTS = "-u " . $ENV{'db_user'} . " -p" . $ENV{'db_password'};
my $DATABASE = $ENV{'db'} || "smf";
my $PREFIX = $ENV{'db_prefix'} || "smf_";

# Output for config
if(defined $ARGV[0] && $ARGV[0] eq 'config') {
    print <<EOC
graph_title SMF Statistics
graph_vlabel Number of items
graph_category forum
members.label Total members
graph_scale no
EOC
;
    print <<EOC
messages.label Total messages
EOC
;
    print <<EOC
topics.label Total topics
EOC
;
    exit 0;
}

#Members count
my $members = `$MYSQL $MYSQLOPTS -e 'SELECT value FROM ${DATABASE}.${PREFIX}settings WHERE variable = "totalMembers"'`;
$members =~ /(\d+)/; 
print "members.value ".$1."\n";

#Messages count
my $messages = `$MYSQL $MYSQLOPTS -e 'SELECT value FROM ${DATABASE}.${PREFIX}settings WHERE variable="totalMessages"'`;
$messages =~ /(\d+)/; 
print "messages.value ".$1."\n";

#Topics count
my $topics = `$MYSQL $MYSQLOPTS -e 'SELECT value FROM ${DATABASE}.${PREFIX}settings WHERE variable="totalTopics"'`;
$topics =~/(\d+)/;
print "topics.value ".$1."\n";