# Copyright (C) 2005 Mandriva
#                    Olivier Blin <oblin@mandriva.com>
# Copyright (C) 2017 Mageia
#                    Martin Whitaker <mageia@martin-whitaker.me.uk>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2, or (at your option)
# any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.

# SYNOPSIS
# --------
# This package provides routines to read in and check the user-supplied
# settings and configuration files.

package MGA::DrakISO::Config;

use strict;

use MDK::Common;
use Pod::Usage;
use Cwd 'getcwd';

#- we bless Media objects here
use MGA::DrakISO::Media;
#- these modules can be used from config files
use MGA::DrakISO::Mounts;
use MGA::DrakISO::CustomMedia;

sub read_config {
    my ($build, $config_root, $config_path, $settings_path) = @_;

    if ($config_path && -e getcwd() . '/' . $config_path) {
        $config_root = getcwd();
    }
    print "Using $config_root as directory root\n";

    add2hash($build->{settings} ||= {}, { getVarsFromSh($config_root . '/' . $settings_path) }) if $settings_path;
    if ($config_path) {
        #- don't use do(), since it can't see lexicals in the enclosing scope
        my $cfg = eval(cat_($config_root . '/' . $config_path)) or die "unable to load $config_path: $@\n";
        put_in_hash($build, $cfg);
        print "Loaded $config_path as config file\n";
    }
    $build->{settings}{config_root} = $config_root;
}

sub check_config {
    my ($build) = @_;
    unless (keys(%$build)) {
        warn "no build definition\n";
        Pod::Usage::pod2usage();
    }
    #- check for minimum requirements
    $build->{settings}{arch}
      or die "ERROR: you must specify an architecture\n";
    ref $build->{media} && $build->{media}{storage}
      or die "ERROR: you must specify the media storage type.\n";
    $build->{media}{label}
      or die "ERROR: you must supply a media label\n";
}

sub complete_config {
    my ($build) = @_;

    $build->{settings}{workdir} ||= '/var/lib/drakiso';

    $build->{settings}{arch} ||= chomp_(`rpm --eval '%{_target_cpu}'`);

    $_ = MGA::DrakISO::Media::new($_) foreach (
        $build->{media},
        ($build->{replicator} ? $build->{replicator}{media} : ()),
        ($build->{oem_rescue} ? $build->{oem_rescue}{media} : ()),
    );

    mkdir_p($build->get_builddir);
    mkdir_p($build->get_system_root);
    $build->{mnt} ||= $build->get_builddir . "/mnt";
}

sub dump_config {
    my ($build) = @_;
    use Data::Dumper;
    print Data::Dumper->Dump([ $build ], [ "build" ]);
}

1;