#!/usr/bin/perl

use strict;
use warnings;

use SiteSummary;
use Getopt::Std;

my %vers;
my %hostmap;
my %opts;

sub usage {
    my $retval = shift;
    print <<EOF;
Usage: $0 [-l]
   -l   list hosts with the given version
EOF
    exit $retval;
}

getopt("l", \%opts) || usage(1);

for_all_hosts(\&handle_host);

print_summary();

sub handle_host {
    my $hostid = shift;
    #print "$hostid\n";
    for my $ver (get_debian_ver($hostid)) {
        $ver = "NoDebianVersion" unless defined $ver;
        $vers{$ver}++;
        $hostmap{$ver} = [] unless exists $hostmap{$ver};
	push @{$hostmap{$ver}}, $hostid ;
    }
}

sub print_summary {
    printf("  %-20s %5s\n", "version", "count");
    for my $ver (sort keys %vers) {
        printf("  %-20s %5d\n", $ver, $vers{$ver});
        if (exists $opts{l}) {
            for my $hostid (sort @{$hostmap{$ver}}) {
                my $hostname = get_hostname($hostid);
                printf "    %s %s %s\n", $hostname, $ver, $hostid;
            }
        }
    }
}
