#!/usr/bin/perl

package xCAT_plugin::vlan;
BEGIN
{
  $::XCATROOT = $ENV{'XCATROOT'} ? $ENV{'XCATROOT'} : '/opt/xcat';
}
use lib "$::XCATROOT/lib/perl";
use strict;
use warnings "all";
use xCAT::GlobalDef;

use xCAT::Utils;
use xCAT::TableUtils;
use xCAT::SvrUtils;
use xCAT::Usage;
use xCAT::NodeRange;

sub handled_commands {
  return {
    mkvlan => 'switch:vlan,port,switch', # in progress
    chvlan => 'switch:vlan,port,switch', # in progress
    lsvlan => 'switch:vlan,port,switch', # in progress
    rmvlan => 'switch:vlan,port,switch', # in progress
  }
}
    
use POSIX "WNOHANG";
use IO::Handle;
use IO::Socket;
use IO::Select;

#local to module
my $callback;
my $timeout;
my $port;
my $debug;
my $ndebug = 0;
my $sock;
my $noclose;
my %sessiondata; #hold per session variables, in preparation for single-process strategy
my %pendingtransactions; #list of peers with callbacks, callback arguments, and timer expiry data
my $enable_cache="yes";
my $cache_dir = "/var/cache/xcat";

my $vlanid;

sub process_request
{
    my $req      = shift;
    my $callback = shift;
    my $reqcmd   = shift;

    if ($command eq 'mkvlan')
    {
        return mkvlan($req, $callback, $reqcmd);
    }
    elsif ($command eq 'chvlan')
    {
        return chvlan($req, $callback, $reqcmd);
    }
    elsif ($command eq 'lsvlan')
    {
        return lsvlan($req, $callback, $reqcmd);
    }
    elsif ($command eq 'rmvlan')
    {
        return rmvlan($req, $callback, $reqcmd);
    }
}

sub mkvlan
{
    my $request  = shift;
    my $callback = shift;
    my $reqcmd   = shift;

    # Variables for this function
	my $vlanid;

	# A quick function for usage information for the command    
    my $mkvlan_usage = sub {
        my $exitcode = shift @_;
        my %rsp;
        push @{$rsp{data}}, "Usage: mkvlan [vlanid] -n noderange [-t subnet | -m netmask | -i interface]";
        push @{$rsp{data}}, "       mkvlan [-?|-h|--help]";
        if ($exitcode) { $rsp{errorcode} = $exitcode; }
        $callback->(\%rsp);
    };

    # Go through the arguments, and get the relevant information
    @ARGV = @{$req->{arg}};

    #Detect if the first variable is a number or not, as it may be the vlanid
    if ($ARGV[0] !~ /\D/) {$vlanid=$ARGV[0];}

    GetOptions(
               't=s' => \$subnet,
               'm=s' => \$mask,
               'n=s' => \$noderange,
               'i=s' => \$interface,
               'h|?|help' => \$help,
               'v|version' => \$VERSION,
               );
    
    # Show usage info if help is defined
    if ($help) { $mkvlan_usage->(0); return;}

    # Node range must be defined
    if (!defined($noderange)) { $mkvlan_usage->(1); return;}

    # Display the version of the code
    if ($VERSION) {
      my %rsp;
      my $version = xCAT::Utils->Version();
      $rsp{data}->[0] = "$version";
      $cb->(\%rsp);
      return;
    }

    # put the nodes in an array
    my @nodes = split(/,/,$noderange);
    my $swtab = xCAT::Table->new('switch');
    my $swhash = $swtab->getNodesAttribs(\@nodes,['switch','vlan','port','interface']);
    
    foreach (@nodes)
    {
    	my $node = $_;
    	
    	foreach (@$swhash->{$node}) 
    	{
    		my $nswhash = $_;
    	
    		my $switch    = $nswhash->{'switch'};
    		my $vlan      = $nswhash->{'vlan'};
    		my $port      = $nswhash->{'port'};
    		my $swinterface = $nswhash->{'interface'};

			if ($vlanid == "" || !defined($vlanid)) {$vlanid = $vlan;}
			if ($interface == "" || !defined($interface)) { $interface = $swinterface;}
			
			
    }

}

sub lsvlan
{
    my $request  = shift;
    my $callback = shift;
    my $reqcmd   = shift;

    my @args  = @{$req->{arg}} if(exists($req->{arg}));

	# A quick function for usage information for the command    
    my $lsvlan_usage = sub {
        my $exitcode = shift @_;
        my %rsp;
        push @{$rsp{data}}, "Usage: mkvlan vlanid";
        push @{$rsp{data}}, "       mkvlan [-?|-h|--help]";
        if ($exitcode) { $rsp{errorcode} = $exitcode; }
        $callback->(\%rsp);
    };

    # Go through the arguments, and get the relevant information
    @ARGV = @{$req->{arg}};

    #Detect if the first variable is a number or not, as it may be the vlanid
    if ($ARGV[0] !~ /\D/) {$vlanid=$ARGV[0];}

    GetOptions(
               'h|?|help' => \$help,
               );
    
    # Show usage info if help is defined
    if ($help) { $lsvlan_usage->(0); return; }
    # Show usage if we have less then 2 arguments, or the vlan option is not defined
    if (scalar(@ARGV)<1 || !defined($vlanid)) { $lsvlan_usage->(1); return; }

}


1;