#!/usr/bin/perl -w

use strict;
use JSON;

my $json;
@{$json->{data}} = ();

my $hpacucli = '/usr/sbin/hpacucli';

# the hpacucli utility is needed
unless (-x $hpacucli){
    print to_json($json);
    exit(0);
}

open( HPACUCLI, "$hpacucli controller all show status|" )
  or die "An error occured while running $hpacucli: $!";

foreach my $line (<HPACUCLI>){
    if ( $line =~ m/Another instance of hpacucli is running! Stop it first\./i ){
        die "Another instance of hpacucli is running\n";
    }
    elsif ( $line =~  m/(.*) in Slot (\d+)/i ) {
        push @{$json->{data}}, {"#MODEL" => $1, "#SLOT" => $2};
    }
}
close HPACUCLI;
print to_json($json);
exit(0);