# -*- cperl -*-

use warnings FATAL => qw(all);

use ExtUtils::testlib;
use Test::More;
use Test::Exception;
use Test::Memory::Cycle;
use Test::Differences;
use Config::Model;
use Data::Dumper;
use Log::Log4perl qw(:easy :levels);

BEGIN { plan tests => 8; }

use strict;

my $arg = shift || '';
my ( $log, $show ) = (0) x 2;

my $trace = $arg =~ /t/ ? 1 : 0;
$log  = 1 if $arg =~ /l/;
$show = 1 if $arg =~ /s/;

my $home = $ENV{HOME} || "";
my $log4perl_user_conf_file = "$home/.log4config-model";

if ( $log and -e $log4perl_user_conf_file ) {
    Log::Log4perl::init($log4perl_user_conf_file);
}
else {
    Log::Log4perl->easy_init( $log ? $WARN : $ERROR );
}

Config::Model::Exception::Any->Trace(1) if $arg =~ /e/;

ok( 1, "Compilation done" );

# minimal set up to get things working
my $model = Config::Model->new();

$model->create_config_class(
    name => "Master",

    accept => [
        '.*' => {
            type       => 'leaf',
            value_type => 'uniline',
        }
    ],

    element => [
        one => {
            type       => 'leaf',
            value_type => 'string',
        },
        fs_vfstype => {
            type       => 'leaf',
            value_type => 'enum',
            choice     => [qw/auto ext2 ext3/],
        },
        fs_mntopts => {
            type   => 'warped_node',
            follow => { 'f1' => '- fs_vfstype' },
            rules  => [
                '$f1 eq \'auto\'',
                { 'config_class_name' => 'Fstab::CommonOptions' },
                '$f1 eq \'ext2\'',
                { 'config_class_name' => 'Fstab::Ext2FsOpt' },
                '$f1 eq \'ext3\'',
                { 'config_class_name' => 'Fstab::Ext3FsOpt' },
            ],
        } ] );

$model->create_config_class(
    name    => "Two",
    element => [ two => { type => 'leaf', value_type => 'string', }, ] );

$model->augment_config_class(
    name          => "Master",
    include       => 'Two',
    include_after => 'fs_mntopts',

    accept => [
        '.*'   => { description => "catchall" },
        'ip.*' => {
            type       => 'leaf',
            value_type => 'uniline',
        }
    ],

    element => [
        three => {
            type       => 'leaf',
            value_type => 'string',
        },
        fs_vfstype => { choice => [qw/ext4/], },
        fs_mntopts => {
            rules => [ q!$f1 eq 'ext4'!, { 'config_class_name' => 'Fstab::Ext4FsOpt' }, ],
        },
    ] );

# augment a class which is inherited
$model->augment_config_class(
    name    => "Two",
    element => [ two_and_a_half => { type => 'leaf', value_type => 'string', }, ] );

# use Tk::ObjScanner; Tk::ObjScanner::scan_object($model) ;

my $inst = $model->instance(
    root_class_name => 'Master',
    instance_name   => 'test1'
);
ok( $inst, "created dummy instance" );

my $root = $inst->config_root;

my $augmented_model = $model->get_model('Master');
print Dumper ($augmented_model) if $trace;

my @elt = $root->get_element_name();
print "element list: @elt\n" if $trace;
eq_or_diff( \@elt, [qw/one fs_vfstype two two_and_a_half three/], "check augmented class" );

my $fstype     = $root->fetch_element('fs_vfstype');
my @fs_choices = $fstype->get_choice;
eq_or_diff( \@fs_choices, [qw/auto ext2 ext3 ext4/], "check augmented choices" );

eq_or_diff(
    $augmented_model->{element}{fs_mntopts}{rules},
    [
        '$f1 eq \'auto\'',
        { 'config_class_name' => 'Fstab::CommonOptions' },
        '$f1 eq \'ext2\'',
        { 'config_class_name' => 'Fstab::Ext2FsOpt' },
        '$f1 eq \'ext3\'',
        { 'config_class_name' => 'Fstab::Ext3FsOpt' },
        '$f1 eq \'ext4\'',
        { 'config_class_name' => 'Fstab::Ext4FsOpt' }
    ],
    "test augmented rules"
);

eq_or_diff( $augmented_model->{accept_list}, [ '.*', 'ip.*' ], "test accept_list" );
is( $augmented_model->{accept}{'.*'}{description}, 'catchall', "test augmented rules" );
memory_cycle_ok($model);