#!/usr/bin/env perl
# IBM(c) 2007 EPL license http://www.eclipse.org/legal/epl-v10.html

use File::Basename;
use xCAT::Client submit_request;

my $bname = basename($0);

#########################################
# Main
#
#   xcatDBcmds
#
#	Handles xCAT DB object management commands: 
#		xdefmk, xdefch, xdefls, & xdefrm. 
#
#	Builds hash and submits request.
#
#       Note: The subroutines that implement these commands
#               are in /usr/lib/xcat/plugins/DBobjectdefs.pm
#               on the xCAT management node.
#
#########################################

my $cmdref;

# set the command name to pass to the plugin
if ($bname =~ /xcatDBcmds/)
{
    $cmdref->{command}->[0] = shift @ARGV;
}
elsif ($bname =~ /^(.*$)/)
{
    $cmdref->{command}->[0] = $1;
}
else
{
    printf("Bad usage\n");
    exit 1;
}

print "The command \'$cmdref->{command}->[0]\' is not yet available.\n";
exit 0;

# add all the cmd line args to the hash - to pass to the plugin subroutine
foreach (@ARGV)
{
    push(@{$cmdref->{arg}}, $_);
}

if (!($bname =~ /xdefmk/))
{

    #
    #  We need to see if a noderange was provided on the command line
    #  - the command line could be flags(options) -> noderange -> attr=val pairs
    #  - the noderange is used by xCAT remote access support infrastructure
    #  	so we need to set it now
    #

    use Getopt::Long;

    # Allows opts to be grouped (e.g. -avx)
    Getopt::Long::Configure("bundling");

    # parse the options
    if (
        !GetOptions(
                    'all|a'     => \$::opt_a,
                    'dynamic|d' => \$::opt_d,
                    'f=s'       => \$::opt_f,
                    'i=s'       => \$::opt_i,
                    'help|h'    => \$::opt_h,
                    'long|l'    => \$::opt_l,
                    'm|minus'   => \$::opt_m,
                    'o=s'       => \$::opt_o,
                    'r|relace'  => \$::opt_r,
                    't=s'       => \$::opt_t,
                    'verbose|V' => \$::opt_V,
                    'version|v' => \$::opt_v,
                    'w=s'       => \$::opt_w,
                    'x=s'       => \$::opt_x,
                    'z=s'       => \$::opt_z
        )
      )
    {
        return 1;
    }

    #  a node range would be the next arg - but not if it contains an "=" sign
    #	- then it would be an attr=val operand
    my $arg = shift(@ARGV);
    if (!($arg =~ /=/))
    {
        $cmdref->{noderange}->[0] = $arg;

        #  could check if valid noderange at this point???
    }

}

xCAT::Client::submit_request($cmdref, \&handle_response);

print "\n";

exit 0;

#  may want to modify handle_response at some point!!!!!!!

##########################################
# handle_response is the callback that is
# invoked to print out the data returned by
# the plugin.
#
# Format of the response hash:
#  {data => [ 'data str1', 'data str2', '...' ] }
#
#    Results are printed as:
#       data str1
#       data str2
#
# or:
#  {data => [ {desc => [ 'desc1' ],
#              contents => [ 'contents1' ] },
#             {desc => [ 'desc2 ],
#              contents => [ 'contents2' ] }
#                :
#            ] }
#    NOTE:  In this format, only the data array can have more than one
#           element. All other arrays are assumed to be a single element.
#    Results are printed as:
#       desc1: contents1
#       desc2: contents2
#
# or:
#  {node => [ {name => ['node1'],
#              data => [ {desc => [ 'node1 desc' ],
#                         contents => [ 'node1 contents' ] } ] },
#             {name => ['node2'],
#              data => [ {desc => [ 'node2 desc' ],
#                         contents => [ 'node2 contents' ] } ] },
#                :
#             ] }
#    NOTE:  Only the node array can have more than one element.
#           All other arrays are assumed to be a single element.
#
#    This was generated from the corresponding HTML:
#    <xcatrequest>
#      <node>
#        <name>node1</name>
#        <data>
#          <desc>node1 desc</desc>
#          <contents>node1 contents</contents>
#        </data>
#      </node>
#      <node>
#        <name>node2</name>
#        <data>
#          <desc>node2 desc</desc>
#          <contents>node2 contents</contents>
#        </data>
#      </node>
#    </xcatrequest>
#
#   Results are printed as:
#      node_name: desc: contents
##########################################
sub handle_response
{
    my $rsp = shift;

    # Handle {node} structure
    if ($rsp->{node})
    {
        my $nodes = ($rsp->{node});
        my $node;
        foreach $node (@$nodes)
        {
            my $desc = $node->{name}->[0];
            if ($node->{data})
            {
                if (ref(\($node->{data}->[0])) eq 'SCALAR')
                {
                    $desc = $desc . ": " . $node->{data}->[0];
                }
                else
                {
                    if ($node->{data}->[0]->{desc})
                    {
                        $desc = $desc . ": " . $node->{data}->[0]->{desc}->[0];
                    }
                    if ($node->{data}->[0]->{contents})
                    {
                        $desc = "$desc: " . $node->{data}->[0]->{contents}->[0];
                    }
                }
            }
            if ($desc)
            {
                print "$desc\n";
            }
        }
    }

    # Handle {data} structure with no nodes
    if ($rsp->{data})
    {
        my $data = ($rsp->{data});
        my $data_entry;
        foreach $data_entry (@$data)
        {
            my $desc;
            if (ref(\($data_entry)) eq 'SCALAR')
            {
                $desc = $data_entry;
            }
            else
            {
                if ($data_entry->{desc})
                {
                    $desc = $data_entry->{desc}->[0];
                }
                if ($data_entry->{contents})
                {
                    if ($desc)
                    {
                        $desc = "$desc: " . $data_entry->{contents}->[0];
                    }
                    else
                    {
                        $desc = $data_entry->{contents}->[0];
                    }
                }
            }
            if ($desc)
            {
                print "$desc\n";
            }
        }
    }
}