# Copyright (c) 2011 - RZ Uni Freiburg
# Copyright (c) 2011 - OpenSLX GmbH
#
# This program is free software distributed under the GPL version 2.
# See http://openslx.org/COPYING
#
# If you have any feedback please consult http://openslx.org/feedback and
# send your suggestions, praise, or complaints to feedback@openslx.org
#
# General information about OpenSLX can be found at http://openslx.org/
# -----------------------------------------------------------------------------
# emufe.pm
#    - Declares necessary information for the emufe plugin
# -----------------------------------------------------------------------------
package OpenSLX::OSPlugin::emufe;

use strict;
use warnings;

use base qw(OpenSLX::OSPlugin::Base);

use File::Basename;
use File::Path;

use OpenSLX::Basics;
use OpenSLX::Utils;
use OpenSLX::DistroUtils;

sub new
{
    my $class = shift;
    my $self = {
        name => 'emufe',
    };

    return bless $self, $class;
}

sub getInfo
{
    my $self = shift;

    return {
        description => unshiftHereDoc(<<'        End-of-Here'),
           Module for enabling selection of emulators via the vmchooser plugin
           and mount a content directory if required. Mostly dummy functionality.
        End-of-Here
        precedence => 70,
        required => [ qw( vmchooser ) ],
    };
}

sub getAttrInfo
{
    # Returns a hash-ref with information about all attributes supported
    # by this specific plugin
    my $self = shift;

    # This default configuration will be added as attributes to the default
    # system, such that it can be overruled for any specific system by means
    # of slxconfig.
    return {
        # attribute 'active' is mandatory for all plugins
        'emufe::active' => {
            applies_to_systems => 1,
            applies_to_clients => 1,
            description => unshiftHereDoc(<<'            End-of-Here'),
                should the 'emufe'-plugin be executed during boot?
            End-of-Here
            content_regex => qr{^(0|1)$},
            content_descr => '1 means active - 0 means inactive',
            default => '1',
        },
        # attribute 'imagesrc' defines where we can find the different emulator
        # images
        'emufe::imagesrc' => {
            applies_to_systems => 1,
            applies_to_clients => 1,
            description => unshiftHereDoc(<<'            End-of-Here'),
                Where should the vm images be stored? NFS? Filesystem?
            End-of-Here
            #TODO: check if the input is valid
            #content_regex => qr{^(0|1)$},
            content_descr => 'Allowed values: local path or URI',
            default => '',
        },

    };
}

sub installationPhase
{
    my $self = shift;
    my $info = shift;

    $self->{pluginRepositoryPath} = $info->{'plugin-repo-path'};
    $self->{pluginTempPath}       = $info->{'plugin-temp-path'};
    $self->{openslxBasePath}      = $info->{'openslx-base-path'};
    $self->{openslxConfigPath}    = $info->{'openslx-config-path'};
    $self->{attrs}                = $info->{'plugin-attrs'};

    my $engine = $self->{'os-plugin-engine'};
    my $pluginRepoPath  = $info->{'plugin-repo-path'};
    my $openslxBasePath = $info->{'openslx-base-path'};

    # Copy run-virt.include and template files to the appropriate place for
    # inclusion in stage4
    my $pluginName = $self->{'name'};
    my $pluginBasePath = "$openslxBasePath/lib/plugins/$pluginName/files";
    foreach my $file ( qw( run-virt.include ) ) {
        copyFile("$pluginBasePath/$file", "$pluginRepoPath/");
    }

    # not needed yet (all emulators run in userspace)
    #my $initFile = newInitFile();
    #$initFile->setName("emufe");
    #$initFile->setDesc("Setup environment for different emulators");

    return;
}

sub removalPhase
{
    my $self = shift;
    my $info = shift;

    return;
}

sub checkStage3AttrValues
{
    my $self          = shift;
    my $stage3Attrs   = shift;
    my $vendorOSAttrs = shift;

    return;
}

1;