package MGA::DrakISO::Live;

use strict;

use MDK::Common;

sub new {
    my ($class) = @_;
    bless {}, $class;
}

sub default_name_fields {
    my ($live) = @_;
    [ qw(name version product desktop),
      if_($live->{settings}{region} ne 'all', $live->{settings}{region}),
      qw(arch media)
    ];
}

sub get_name {
    my ($live) = @_;
    my $fields = $live->{name_fields} || default_name_fields($live);
    join('-', grep { $_ } @{$live->{settings}}{@$fields});
}

sub get_set_suffix {
    my ($live) = @_;
    $live->{settings}{set} ? "-$live->{settings}{set}" : "";
}

sub get_langs {
    my ($live) = @_;
    uniq(
        (ref $live->{regions} ? @{$live->{regions}{$live->{settings}{region}}} : ()),
        @{$live->{system}{langs_always}}
    );
}

sub get_builddir {
    my ($live, $o_subdir) = @_;
    $live->{settings}{builddir} . '/' . $live->get_name . $live->get_set_suffix . if_($o_subdir, '/' . $o_subdir);
}

sub get_system_root {
    my ($live) = @_;
    $live->{settings}{chroot} . '/' . $live->get_name . $live->get_set_suffix;
}

sub find_kernel {
    my ($live) = @_;
    require bootloader;
    local $::prefix = $live->get_system_root;
    my @kernels = bootloader::get_kernels_and_labels();
    my $kernel;
    if ($live->{system}{kernel}) {
        $kernel = find { $_->{version} eq $live->{system}{kernel} } @kernels;
        $kernel or die "kernel $live->{system}{kernel} can not be found\n";
    }
    $kernel ||= first(@kernels) or die "no kernel can be found\n";
}

sub get_initrd_name {
    my ($live) = @_;
    'initrd-' . $live->find_kernel->{version} . '.img';
}

sub get_absolute_path {
    my ($live, $path) = @_;
    if (defined $path && substr($path, 0, 1) ne '/') {
        $live->{settings}{config_root} . '/' . $path;
    } else {
        $path;
    }
}

1;