#!/usr/bin/perl -w
#
# Magic markers:
#%# family=auto
#%# capabilities=autoconf

my $ret = undef;

if (! eval "require LWP::UserAgent;"){
	$ret = "LWP::UserAgent not found";
}

chomp(my $fqdn=`hostname -f`);

my $URL = exists $ENV{'url'} ? $ENV{'url'} : "http://$fqdn/nginx_status";

if ( exists $ARGV[0] and $ARGV[0] eq "autoconf" )
{
	if ($ret){
		print "no ($ret)\n";
		exit 1;
	}
	
	my $ua = LWP::UserAgent->new(timeout => 30);
    my $response = $ua->request(HTTP::Request->new('GET',$URL));

	unless ($response->is_success and $response->content =~ /server/im)
	{
		print "no (no nginx status on $URL)\n";
		exit 1;
	}
	else
	{
		print "yes\n";
		exit 0;
	}
}

if ( exists $ARGV[0] and $ARGV[0] eq "config" )
{
	print "graph_title NGINX requests\n";
    	print "graph_args --base 1000\n";
	print "graph_category nginx\n";
    	print "graph_vlabel Request per second\n";

    	print "request.label req/sec\n";
    	print "request.type DERIVE\n";
	print "request.min 0\n";
	print "request.label requests $port\n";
	print "request.draw LINE2\n";
	
	exit 0;
}

my $ua = LWP::UserAgent->new(timeout => 30);

my $response = $ua->request(HTTP::Request->new('GET',$URL));

if ($response->content =~ /^\s+(\d+)\s+(\d+)\s+(\d+)/m) {
    print "request.value $3\n";
} else {
    print "request.value U\n";
}