#!/usr/bin/perl -w
#
# test_class.pl
#
#   Test a device class in SNMP::Info against a device.
#
# Max Baker
#
# $Id$
#

use FindBin;
use lib "$FindBin::Bin/../..";
#use lib '/usr/local/netdisco';

use SNMP::Info;
use Getopt::Long;
use strict;
use vars qw/$Class $Dev $Comm $Ver @Dump %Dumped $Debug %args $NoBulk $MibDirs/;

# Default Values
$Class = '';
$Dev   = '';
$Comm  = '';
$Ver   = 2;
@Dump  = ();
$Debug = 0;
$NoBulk = 0;

GetOptions ('c|class=s'  => \$Class,
            'd|dev=s'    => \$Dev,
            's|comm=s'   => \$Comm,
            'v|ver=i'    => \$Ver,
            'h|help'     => \&usage,
            'p|print=s'  => \@Dump,
            'x|debug+'   => \$Debug,
            'n|nobulk'   => \$NoBulk,
            'm|mibdir=s@' => \$MibDirs,
           );

&usage unless ($Dev and $Comm);

# Default MIB directories
my $n = '/usr/local/netdisco';
unless (defined $MibDirs) {
    $MibDirs = ["$n/mibs/allied", "$n/mibs/asante", "$n/mibs/cisco", "$n/mibs/foundry",
                "$n/mibs/hp", "$n/mibs/nortel", "$n/mibs/extreme", "$n/mibs/rfc",
                "$n/mibs/net-snmp"];
}

$Class = $Class ? "SNMP::Info::$Class" : 'SNMP::Info';
eval "require $Class;";
if ($@) {
    die "Can't load Class specified : $Class.\n\n$@\n";
}

my $class_ver = 'undef';
{ no strict 'refs';
    $class_ver = ${"${Class}::VERSION"};
}
print "Class $Class ($class_ver) loaded from SNMP::Info $SNMP::Info::VERSION.\n";
#print "MIB Dirs : ",join(', ',@$MibDirs),"\n";
print "Dumping : ",join(',',@Dump),"\n"  if scalar @Dump;

%args = ();
if ($NoBulk) {
	$args{BulkWalk} = 0;
}

my $dev = new $Class( 'AutoSpecify' => 0,
                      'AutoVerBack' => 0,
                      'Version'     => $Ver,
                      'Debug'       => $Debug,
                      'DestHost'    => $Dev,
                      'Community'   => $Comm,
                      'MibDirs'     => $MibDirs,
			%args
                    ) or die "\n"; 

print "Connected to $Dev.\n";
print "Detected Class: ", $dev->device_type(), "\n";
print "Using    Class: $Class (-c to change)\n";
    
my $layers = $dev->layers();
my $descr = $dev->description();

unless (defined $layers or defined $descr){
    die "Are you sure you got the right community string and version?\nCan't fetch layers or description.\n";
}

print "Fetching global info...\n\n";

my @globals = qw/description uptime contact name location layers ports mac serial
                ps1_type ps2_type ps1_status ps2_status fan slots vendor os os_ver/;

foreach my $global (@globals){
    test_global($dev,$global);
}

print "\nFetching interface info...\n\n";

my @fns = qw/interfaces i_type i_ignore i_description i_mtu i_speed i_mac i_up
             i_up_admin i_name i_duplex i_duplex_admin i_stp_state
             i_lastchange/;

foreach my $fn (@fns){
    test_fn($dev,$fn);
}

print "\nTesting Misc...\n\n";
my @misc = qw/v_name v_port/;
foreach my $fn (@misc){
    test_fn($dev,$fn);
}

foreach my $fn (@Dump) {
    test_fn($dev,$fn) unless $Dumped{$fn};
}

#--------------------------------
sub test_global {
    my $dev    = shift;
    my $method = shift;

    my $value;
    eval {
        $value = $dev->$method();
    };
    
    if ($@){
        my $err = $@;
        $err =~ s/[[:cntrl:]]+/ /g;
        printf "%-20s Blew up. $err\n",$method;
        return 0;
    }
    
    unless (defined $value){
        printf "%-20s Does not exist.\n",$method;
        return 0;
    }
    $value =~ s/[[:cntrl:]]+/ /g;
    if (length $value > 60) {
        $value = substr($value,0,60);
        $value .= '...';
    }
    printf "%-20s %s \n",$method,$value;
    return 1;
}

sub test_fn {
    my $dev = shift;    
    my $method = shift;

    my $results;

    eval {
        $results = $dev->$method();
    };

    if ($@){
        my $err = $@;
        $err =~ s/\n/ /g;
        printf "%-20s Blew up. $err\n",$method;
        return 0;
    }

    # If accidentally called on a global, pass it along nicely.
    if (defined($results) and !ref($results)) {
	return test_global($dev, $method);
    }
    unless (defined $results and scalar keys %$results) {
        printf "%-20s Empty Results.\n",$method;
        return 0;
    }

    printf "%-20s %d rows.\n",$method, scalar(keys %$results);
    if (grep(/^$method$/,@Dump)) {
        $Dumped{$method} = 1;
        foreach my $iid (keys %$results){
            print "  $iid : ";
	    if (ref($results->{$iid}) eq 'ARRAY') {
		print "[ ", join(", ", @{$results->{$iid}}), " ]";
	    } else {
		print $results->{$iid};
	    }
	    print "\n";
        }
    }
    return 1;
}

sub usage {
    print << "end_usage";

test_class - Test a device against an SNMP::Info class
    -c  --class  Layer2::Catalyst
    -d  --dev    myswitch
    -s  --comm   public
    -v  --ver    2
    -p  --print  i_blah
    -p  --print  i_blah2
    -x  --debug  debugging flag
    -n  --nobulk disable bulkwalk
    -m  --mibdirs directory (repeat as needed)

end_usage
    exit;
}