#! /usr/bin/perl -w
##**************************************************************
##
## Copyright (C) 1990-2007, Condor Team, Computer Sciences Department,
## University of Wisconsin-Madison, WI.
## 
## Licensed under the Apache License, Version 2.0 (the "License"); you
## may not use this file except in compliance with the License.  You may
## obtain a copy of the License at
## 
##    http://www.apache.org/licenses/LICENSE-2.0
## 
## Unless required by applicable law or agreed to in writing, software
## distributed under the License is distributed on an "AS IS" BASIS,
## WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
## See the License for the specific language governing permissions and
## limitations under the License.
##
##**************************************************************

use strict;

# Update the module include path
BEGIN
{
    my $Dir = $0;
    if ( $Dir =~ /(.*)\/.*/ )
    {
	push @INC, "$1";
    }
}
use HawkeyePublish;
use HawkeyeLib;

# Global Hawkeye data
my $Hawkeye;

Init();
RunIt();

sub Init {
    HawkeyeLib::DoConfig( );

    # Setup the hawkeye stuff
    $Hawkeye = HawkeyePublish->new;
    $Hawkeye->Quiet( 1 );
    $Hawkeye->AutoIndexSet( 0 );
}

sub RunIt {

    ###
    ### Get uptime output for the top n processes
    ###

    my $Hash = HawkeyeHash->new( \$Hawkeye, "" );
    my $Cmd = "/usr/bin/who";

    # Run it, parse it
    Carp::confess( "Can't run who '$Cmd'" ) if ( ! open ( WHO, "$Cmd|" ) );
    my @UserList;
    my $NumUsers = 0;
    while( <WHO> )
    {
	my $Num = $.;
	my $Num_ = $. . "_";
	$NumUsers++;
	chomp;
	my ( $user, $tty, $month, $date, $time ) = split;
	push( @UserList, $user );
	$Hash->Add( $Num_ . "user",
		    HawkeyePublish::TypeString,
		    $user );
	$Hash->Add( $Num_ . "time",
		    HawkeyePublish::TypeString,
		    "$month $date $time" );
	$Hawkeye->StoreIndex( $Num );
    }
    close( WHO );
    $Hash->Add( "List", HawkeyePublish::TypeString, join( " ", @UserList ) );
    $Hash->Add( "Count", HawkeyePublish::TypeNumber, $NumUsers );

    # Ok, summary is done...
    $Hash->Store( );

    # Publish
    $Hawkeye->Publish( );
}
