# IBM(c) 2007 EPL license http://www.eclipse.org/legal/epl-v10.html
package xCAT_plugin::windows;
use Storable qw(dclone);
use Sys::Syslog;
use File::Temp qw/tempdir/;
use xCAT::Table;
use xCAT::Utils;
use xCAT::MsgUtils;
use xCAT::Template;
use xCAT::Postage;
use Data::Dumper;
use Getopt::Long;
Getopt::Long::Configure("bundling");
Getopt::Long::Configure("pass_through");
use File::Path;
use File::Copy;

my @cpiopid;

sub handled_commands
{
    return {
            copycd    => "windows",
            #mkinstall => "nodetype:os=win.*"
            };
}

sub process_request
{
    my $request  = shift;
    my $callback = shift;
    my $doreq    = shift;
    my $distname = undef;
    my $arch     = undef;
    my $path     = undef;
    my $installroot;
    $installroot = "/install";
    if ($request->{command}->[0] eq 'copycd')
    {
        return copycd($request, $callback, $doreq);
    }
#   elsif ($request->{command}->[0] eq 'mkinstall')
#   {
#       return mkinstall($request, $callback, $doreq);
#   }
}

sub mkinstall
{
    my $request  = shift;
    my $callback = shift;
    my $doreq    = shift;
    my @nodes    = @{$request->{node}};
    my $node;
    my $ostab = xCAT::Table->new('nodetype');
    my %doneimgs;
    foreach $node (@nodes)
    {
        my $osinst;
        my $ent = $ostab->getNodeAttribs($node, ['profile', 'os', 'arch']);
        unless ($ent->{os} and $ent->{arch} and $ent->{profile})
        {
            $callback->(
                        {
                         error => ["No profile defined in nodetype for $node"],
                         errorcode => [1]
                        }
                        );
            next;    #No profile
        }
        my $os      = $ent->{os};
        my $arch    = $ent->{arch};
        my $profile = $ent->{profile};
        unless ( -r $::XCATROOT . "/share/xcat/install/windows/$profile.tmpl"
              or -r $::XCATROOT . "/share/xcat/install/windows/$profile.$arch.tmpl"
              or -r $::XCATROOT . "/share/xcat/install/windows/$profile.$os.tmpl"
              or -r $::XCATROOT
              . "/share/xcat/install/windows/$profile.$os.$arch.tmpl")
        {
            $callback->(
                      {
                       error =>
                         ["No unattended template exists for " . $ent->{profile}],
                       errorcode => [1]
                      }
                      );
            next;
        }

        #Call the Template class to do substitution to produce an unattend.xml file in the autoinst dir
        my $tmperr;
        if (-r $::XCATROOT . "/share/xcat/install/windows/$profile.$os.$arch.tmpl")
        {
            $tmperr =
              xCAT::Template->subvars(
                         $::XCATROOT
                           . "/share/xcat/install/windows/$profile.$os.$arch.tmpl",
                         "/install/autoinst/$node",
                         $node
                         );
        }
        elsif (-r $::XCATROOT . "/share/xcat/install/windows/$profile.$arch.tmpl")
        {
            $tmperr =
              xCAT::Template->subvars(
                   $::XCATROOT . "/share/xcat/install/windows/$profile.$arch.tmpl",
                   "/install/autoinst/$node", $node);
        }
        elsif (-r $::XCATROOT . "/share/xcat/install/windows/$profile.$os.tmpl")
        {
            $tmperr =
              xCAT::Template->subvars(
                     $::XCATROOT . "/share/xcat/install/windows/$profile.$os.tmpl",
                     "/install/autoinst/$node", $node);
        }
        elsif (-r $::XCATROOT . "/share/xcat/install/windows/$profile.tmpl")
        {
            $tmperr =
              xCAT::Template->subvars(
                         $::XCATROOT . "/share/xcat/install/windows/$profile.tmpl",
                         "/install/autoinst/$node", $node);
        }
        if ($tmperr)
        {
            $callback->(
                        {
                         node => [
                                  {
                                   name      => [$node],
                                   error     => [$tmperr],
                                   errorcode => [1]
                                  }
                         ]
                        }
                        );
            next;
        }
	
		# create the node-specific post script DEPRECATED, don't do
		#mkpath "/install/postscripts/";
		#xCAT::Postage->writescript($node, "/install/postscripts/".$node, "install", $callback);
        if (! -r "/tftpboot/Boot/pxeboot.0" ) {
           $callback->(
            {error => [ "The Windows netboot image is not created, consult documentation on how to add Windows deployment support to xCAT"],errorcode=>[1]
            });
        } elsif (-r $installroot."/$os/$arch/sources/install.wim") {

            if ($arch =~ /x86/)
            {
                $bptab->setNodeAttribs(
                                        $node,
                                        {
                                         kernel   => "Boot/pxeboot.0",
                                         initrd   => "",
                                         kcmdline => ""
                                        }
                                        );
            }
        }
        else
        {
            $callback->(
                {
                 error => [
                     "Failed to detect copycd configured install source at /install/$os/$arch"
                 ],
                 errorcode => [1]
                }
                );
        }
    }
}

sub copycd
{
    my $request  = shift;
    my $callback = shift;
    my $doreq    = shift;
    my $distname = "";
    my $installroot;
    $installroot = "/install";
    my $sitetab = xCAT::Table->new('site');
    if ($sitetab)
    {
        (my $ref) = $sitetab->getAttribs({key => installdir}, value);
        print Dumper($ref);
        if ($ref and $ref->{value})
        {
            $installroot = $ref->{value};
        }
    }

    @ARGV = @{$request->{arg}};
    GetOptions(
               'n=s' => \$distname,
               'a=s' => \$arch,
               'p=s' => \$path
               );
    unless ($path)
    {

        #this plugin needs $path...
        return;
    }
    if ($distname and $distname !~ /^win.*/)
    {

        #If they say to call it something other than win<something>, give up?
        return;
    }
    if (-d $path . "/sources/6.0.6000.16386_amd64" and -r $path . "/sources/install.wim")
    {
        $darch = x86_64;
        unless ($distname) {
            $distname = "win2k8";
        }
        print "indeed";
    }
    print "$path huh?\n";
    unless ($distname)
    {
        return;
    }
    if ($darch)
    {
        unless ($arch)
        {
            $arch = $darch;
        }
        if ($arch and $arch ne $darch)
        {
            $callback->(
                     {
                      error =>
                        ["Requested Windows architecture $arch, but media is $darch"],
                        errorcode => [1]
                     }
                     );
            return;
        }
    }
    %{$request} = ();    #clear request we've got it.

    $callback->(
         {data => "Copying media to $installroot/$distname/$arch/$discnumber"});
    my $omask = umask 0022;
    mkpath("$installroot/$distname/$arch");
    umask $omask;
    my $rc;
    $SIG{INT} =  $SIG{TERM} = sub { 
       foreach(@cpiopid){
          kill 2, $_; 
       }
       if ($::CDMOUNTPATH) {
            system("umount $::CDMOUNTPATH");
       }
    };
    my $kid;
    chdir $path;
    my $numFiles = `find . -print | wc -l`;
    my $child = open($kid,"|-");
    unless (defined $child) {
      $callback->({error=>"Media copy operation fork failure"});
      return;
    }
    if ($child) {
       push @cpiopid,$child;
       my @finddata = `find .`;
       for (@finddata) {
          print $kid $_;
       }
       close($kid);
       $rc = $?;
    } else {
        my $c = "nice -n 20 cpio -vdump $installroot/$distname/$arch";
        my $k2 = open(PIPE, "$c 2>&1 |") ||
           $callback->({error => "Media copy operation fork failure"});
	push @cpiopid, $k2;
        my $copied = 0;
        my ($percent, $fout);
        while(<PIPE>){
          next if /^cpio:/;
          $percent = $copied / $numFiles;
          $fout = sprintf "%0.2f%%", $percent * 100;
          $callback->({sinfo => "$fout"});
          ++$copied;
        }
        exit;
    }
    chmod 0755, "$installroot/$distname/$arch";
    if ($rc != 0)
    {
        $callback->({error => "Media copy operation failed, status $rc"});
    }
    else
    {
        $callback->({data => "Media copy operation successful"});
    }
}

1;