# IBM(c) 2007 EPL license http://www.eclipse.org/legal/epl-v10.html
package xCAT_plugin::fedora;
use Storable qw(dclone);
use Sys::Syslog;
use DBI;
use xCAT::Utils;
use xCAT::MsgUtils;
use xCAT::Yum;
use xCAT::Table;
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 %discids = ("1194015916.783841" => "fedora8",);

sub handled_commands
{
    return {
            copycd    => "fedora",
            mkinstall => "nodetype:os=fedora.*",
            mknetboot => "nodetype:os=fedora.*"
            };
}

sub preprocess_request
{
    my $req      = shift;
    my $callback = shift;
    if ($req->{command}->[0] eq 'copycd')
    {    #don't farm out copycd
        return [$req];
    }
    my %localnodehash;
    my %dispatchhash;
    my $nrtab = xCAT::Table->new('noderes');
    foreach my $node (@{$req->{node}})
    {
        my $nodeserver;
        my $tent = $nrtab->getNodeAttribs($node, ['tftpserver']);
        if ($tent) { $nodeserver = $tent->{tftpserver} }
        unless ($tent and $tent->{tftpserver})
        {
            $tent = $nrtab->getNodeAttribs($node, ['servicenode']);
            if ($tent) { $nodeserver = $tent->{servicenode} }
        }
        if ($nodeserver)
        {
            $dispatchhash{$nodeserver}->{$node} = 1;
        }
        else
        {
            $localnodehash{$node} = 1;
        }
    }
    my @requests;
    my $reqc = {%$req};
    $reqc->{node} = [keys %localnodehash];
    if (scalar(@{$reqc->{node}})) { push @requests, $reqc }

    foreach my $dtarg (keys %dispatchhash)
    {    #iterate dispatch targets
        my $reqcopy = {%$req};    #deep copy
        $reqcopy->{'_xcatdest'} = $dtarg;
        $reqcopy->{node} = [keys %{$dispatchhash{$dtarg}}];
        push @requests, $reqcopy;
    }
    return \@requests;
}

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

sub mknetboot
{
    my $req      = shift;
    my $callback = shift;
    my $doreq    = shift;
    my $tftpdir  = "/tftpboot";
    my $nodes    = @{$request->{node}};
    my @args     = @{$req->{arg}};
    my @nodes    = @{$req->{node}};
    my $ostab    = xCAT::Table->new('nodetype');
    my $sitetab  = xCAT::Table->new('site');
    (my $sent) = $sitetab->getAttribs({key => master}, value);
    my $imgsrv;

    if ($sent and $sent->{value})
    {
        $imgsrv = $sent->{value};
    }
    my $installroot;
    $installroot = "/install";
    if ($sitetab)
    {
        (my $ref) = $sitetab->getAttribs({key => installdir}, value);
        if ($ref and $ref->{value})
        {
            $installroot = $ref->{value};
        }
    }
    foreach $node (@nodes)
    {
        my $ent = $ostab->getNodeAttribs($node, ['os', 'arch', 'profile']);
        unless ($ent->{os} and $ent->{arch} and $ent->{profile})
        {
            $callback->(
                        {
                         error     => ["Insufficient nodetype entry for $node"],
                         errorcode => [1]
                        }
                        );
            next;
        }
        my $osver   = $ent->{os};
        my $arch    = $ent->{arch};
        my $profile = $ent->{profile};

        #packimage($osver,$arch,$profile,$installroot,$callback);
        my $suffix = 'gz';
        if (-r "/$installroot/netboot/$osver/$arch/$profile/rootimg.sfs")
        {
            $suffix = 'sfs';
        }
        unless (
                (
                    -r "/$installroot/netboot/$osver/$arch/$profile/rootimg.gz"
                 or -r "/$installroot/netboot/$osver/$arch/$profile/rootimg.sfs"
                )
                and -r "/$installroot/netboot/$osver/$arch/$profile/kernel"
                and -r "/$installroot/netboot/$osver/$arch/$profile/initrd.gz"
          )
        {
            $callback->(
                {
                 error => [
                     "No packed image for platform $osver, architecture $arch, profile $profile, please run packimage -o $osver -p $profile -a $arch"
                 ],
                 errorcode => [1]
                }
                );
            next;
        }
        mkpath("/$tftpdir/xcat/netboot/$osver/$arch/$profile/");

        #TODO: only copy if newer..
        copy("/$installroot/netboot/$osver/$arch/$profile/kernel",
             "/$tftpdir/xcat/netboot/$osver/$arch/$profile/");
        copy("/$installroot/netboot/$osver/$arch/$profile/initrd.gz",
             "/$tftpdir/xcat/netboot/$osver/$arch/$profile/");

        #copy("/$installroot/netboot/$osver/$arch/$profile/rootimg.gz","/$tftpdir/xcat/netboot/$osver/$arch/$profile/");
        unless (    -r "/$tftpdir/xcat/netboot/$osver/$arch/$profile/kernel"
                and -r "/$tftpdir/xcat/netboot/$osver/$arch/$profile/initrd.gz")
        {
            $callback->(
                {
                 error => [
                     "Copying to /$tftpdir/xcat/netboot/$osver/$arch/$profile failed"
                 ],
                 errorcode => [1]
                }
                );
            next;

            #mkpath("/$tftpdir/xcat/netboot/$osver/$arch/$profile/");
            #copy("/$installroot/netboot/$osver/$arch/$profile/kernel","/$tftpdir/xcat/netboot/$osver/$arch/$profile/");
            #copy("/$installroot/netboot/$osver/$arch/$profile/rootimg.gz","/$tftpdir/xcat/netboot/$osver/$arch/$profile/");
        }
        my $restab = xCAT::Table->new('noderes');
        my $hmtab  = xCAT::Table->new('nodehm');
        my $ent = $restab->getNodeAttribs($node, ['serialport', 'primarynic']);
        my $ient = $restab->getNodeAttribs($node, ['servicenode']);
        if ($ient and $ient->{servicenode})
        {
            $imgsrv = $ient->{servicenode};
        }
        unless ($imgsrv)
        {
            $callback->(
                     {error => ["Unable to determine image server for $node"]});
            next;
        }
        my $kcmdline =
          "imgurl=http://$imgsrv/install/netboot/$osver/$arch/$profile/rootimg.$suffix ";
        if (defined $ent->{serialport})
        {
            my $sent =
              $hmtab->getNodeAttribs($node, ['serialspeed', 'serialflow']);
            unless ($sent->{serialspeed})
            {
                $callback->(
                    {
                     error => [
                         "serialport defined, but no serialspeed for $node in nodehm table"
                     ],
                     errorcode => [1]
                    }
                    );
                next;
            }
            $kcmdline .=
              "console=ttyS" . $ent->{serialport} . "," . $sent->{serialspeed};
            if ($sent->{serialflow} =~ /(hard|tcs|ctsrts)/)
            {
                $kcmdline .= "n8r";
            }
        }
        $restab->setNodeAttribs(
                      $node,
                      {
                       kernel => "xcat/netboot/$osver/$arch/$profile/kernel",
                       initrd => "xcat/netboot/$osver/$arch/$profile/initrd.gz",
                       kcmdline => $kcmdline
                      }
                      );
    }
}

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/fedora/"
            . $ent->{profile} . ".tmpl"
            or -r $::XCATROOT . "/share/xcat/install/fedora/$profile.$arch.tmpl"
            or -r $::XCATROOT . "/share/xcat/install/fedora/$profile.$os.tmpl"
            or -r $::XCATROOT
            . "/share/xcat/install/fedora/$profile.$os.$arch.tmpl")
        {
            $callback->(
                     {
                      error =>
                        ["No kickstart template exists for " . $ent->{profile}],
                      errorcode => [1]
                     }
                     );
            next;
        }

        #Call the Template class to do substitution to produce a kickstart file in the autoinst dir

        my $tmperr;
        if (-r $::XCATROOT
            . "/share/xcat/install/fedora/$profile.$os.$arch.tmpl")
        {
            $tmperr =
              xCAT::Template->subvars(
                       $::XCATROOT
                         . "/share/xcat/install/fedora/$profile.$os.$arch.tmpl",
                       "/install/autoinst/" . $node,
                       $node
                       );
        }
        elsif (
              -r $::XCATROOT . "/share/xcat/install/fedora/$profile.$arch.tmpl")
        {
            $tmperr =
              xCAT::Template->subvars(
                           $::XCATROOT
                             . "/share/xcat/install/fedora/$profile.$arch.tmpl",
                           "/install/autoinst/" . $node,
                           $node
                           );
        }
        elsif (-r $::XCATROOT . "/share/xcat/install/fedora/$profile.$os.tmpl")
        {
            $tmperr =
              xCAT::Template->subvars(
                   $::XCATROOT . "/share/xcat/install/fedora/$profile.$os.tmpl",
                   "/install/autoinst/" . $node, $node);
        }
        else
        {
            $tmperr =
              xCAT::Template->subvars(
                                      $::XCATROOT
                                        . "/share/xcat/install/fedora/"
                                        . $ent->{profile} . ".tmpl",
                                      "/install/autoinst/" . $node,
                                      $node
                                      );
        }
        if ($tmperr)
        {
            $callback->(
                        {
                         node => [
                                  {
                                   name      => [$node],
                                   error     => [$tmperr],
                                   errorcode => [1]
                                  }
                         ]
                        }
                        );
            next;
        }
        mkpath "/install/postscripts/";
        xCAT::Postage->writescript($node, "/install/postscripts/" . $node);
        if (
            (
             $arch =~ /x86/
             and (    -r "/install/$os/$arch/images/pxeboot/vmlinuz"
                  and -r "/install/$os/$arch/images/pxeboot/initrd.img")
            )
            or $arch =~ /ppc/
            and (    -r "/install/$os/$arch/ppc/ppc64/vmlinuz"
                 and -r "/install/$os/$arch/ppc/ppc64/ramdisk.image.gz")
          )
        {
            unless ($doneimgs{"$os|$arch"})
            {

                #TODO: driver slipstream, targetted for network.
                mkpath("/tftpboot/xcat/$os/$arch");
                if ($arch =~ /x86/)
                {
                    copy("/install/$os/$arch/images/pxeboot/vmlinuz",
                         "/tftpboot/xcat/$os/$arch/");
                    copy("/install/$os/$arch/images/pxeboot/initrd.img",
                         "/tftpboot/xcat/$os/$arch/");
                }
                elsif ($arch =~ /ppc/)
                {
                    copy("/install/$os/$arch/ppc/ppc64/vmlinuz",
                         "/tftpboot/xcat/$os/$arch/");
                    copy("/install/$os/$arch/ppc/ppc64/ramdisk.image.gz",
                         "/tftpboot/xcat/$os/$arch/initrd.img");
                }
                else
                {
                    $callback->(
                        {
                         error => [
                             "Plugin doesn't know how to handle architecture $arch"
                         ],
                         errorcode => [1]
                        }
                        );
                    next;
                }
                $doneimgs{"$os|$arch"} = 1;
            }

            #We have a shot...
            my $restab = xCAT::Table->new('noderes');
            my $ent    =
              $restab->getNodeAttribs(
                                      $node,
                                      [
                                       'nfsserver',  'serialport',
                                       'primarynic', 'installnic'
                                      ]
                                      );
            my $hmtab = xCAT::Table->new('nodehm');
            my $sent  =
              $hmtab->getNodeAttribs($node, ['serialspeed', 'serialflow']);
            unless ($ent and $ent->{nfsserver})
            {
                $callback->(
                        {
                         error => ["No noderes.nfsserver defined for " . $node],
                         errorcode => [1]
                        }
                        );
                next;
            }
            my $kcmdline =
                "nofb utf8 ks=http://"
              . $ent->{nfsserver}
              . "/install/autoinst/"
              . $node;
            if ($ent->{installnic})
            {
                $kcmdline .= " ksdevice=" . $ent->{installnic};
            }
            elsif ($ent->{primarynic})
            {
                $kcmdline .= " ksdevice=" . $ent->{primarynic};
            }
            else
            {
                $kcmdline .= " ksdevice=eth0";
            }

            #TODO: dd=<url> for driver disks
            if (defined $ent->{serialport})
            {
                unless ($sent->{serialspeed})
                {
                    $callback->(
                        {
                         error => [
                             "serialport defined, but no serialspeed for $node in nodehm table"
                         ],
                         errorcode => [1]
                        }
                        );
                    next;
                }
                $kcmdline .=
                    " console=ttyS"
                  . $ent->{serialport} . ","
                  . $sent->{serialspeed};
                if ($sent->{serialflow} =~ /(ctsrts|cts|hard)/)
                {
                    $kcmdline .= "n8r";
                }
            }
            $kcmdline .= " noipv6";

            $restab->setNodeAttribs(
                                    $node,
                                    {
                                     kernel   => "xcat/$os/$arch/vmlinuz",
                                     initrd   => "xcat/$os/$arch/initrd.img",
                                     kcmdline => $kcmdline
                                    }
                                    );
        }
        else
        {
            print
              "$arch is arch and /install/$os/$arch/images/pxeboot/vmlinuz and /install/$os/$arch/images/pxeboot/initrd.img\n";
            $callback->(
                    {
                     error => ["Install image not found in /install/$os/$arch"],
                     errorcode => [1]
                    }
                    );
        }
    }
    my $rc = xCAT::Utils->create_postscripts_tar();
    if ($rc != 0)
    {
        xCAT::MsgUtils->message("S", "Error creating postscripts tar file.");
    }
}

sub copycd
{
    my $request  = shift;
    my $callback = shift;
    my $doreq    = shift;
    my $installroot;
    my $sitetab = xCAT::Table->new('site');
    if ($sitetab)
    {
        (my $ref) = $sitetab->getAttribs({key => installdir}, value);
        if ($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 !~ /^fedora/)
    {

        #If they say to call it something other than Fedora, give up?
        return;
    }
    unless (-r $path . "/.discinfo")
    {
        return;
    }
    my $dinfo;
    open($dinfo, $path . "/.discinfo");
    my $did = <$dinfo>;
    chomp($did);
    my $desc = <$dinfo>;
    chomp($desc);
    my $darch = <$dinfo>;
    chomp($darch);

    if ($darch and $darch =~ /i.86/)
    {
        $darch = "x86";
    }
    close($dinfo);
    if ($discids{$did})
    {
        unless ($distname)
        {
            $distname = $discids{$did};
        }
    }
    if ($desc =~ /^Fedora 8$/)
    {
        unless ($distname)
        {
            $distname = "fedora8";
        }
    }
    unless ($distname)
    {
        return;    #Do nothing, not ours..
    }
    if ($darch)
    {
        unless ($arch)
        {
            $arch = $darch;
        }
        if ($arch and $arch ne $darch)
        {
            $callback->(
                   {
                    error =>
                      "Requested Fedora architecture $arch, but media is $darch"
                   }
                   );
            return;
        }
        if ($arch =~ /ppc/) { $arch = "ppc64" }
    }
    %{$request} = ();    #clear request we've got it.

    $callback->({data => "Copying media to $installroot/$distname/$arch/"});
    my $omask = umask 0022;
    mkpath("$installroot/$distname/$arch");
    umask $omask;

    #my $rc = system("cd $path; find . | cpio -dump $installroot/$distname/$arch");
    my $rc = system("cd $path;rsync -a . $installroot/$distname/$arch/");
    chmod 0755, "$installroot/$distname/$arch";
    xCAT::Yum->localize_yumrepo($installroot, $distname, $arch);
    if ($rc != 0)
    {
        $callback->({error => "Media copy operation failed, status $rc"});
    }
    else
    {
        $callback->({data => "Media copy operation successful"});
    }
}

1;