# -*- cperl -*-

use warnings FATAL => qw(all);

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

BEGIN { plan tests => 11; }

use strict;

my $arg = shift || '';

my $log = 0;

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

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 );
}

my $model = Config::Model->new();

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

ok( 1, "compiled" );

# minimal set up to get things working
$model->create_config_class(
    name    => "Master",
    element => [
        plain_hash => {
            type       => 'hash',
            status     => 'deprecated',
            index_type => 'string',
            ordered    => 1,
            cargo      => {
                type       => 'leaf',
                value_type => 'string'
            },
        },
        hash_with_data_migration => {
            type                => 'hash',
            index_type          => 'string',
            migrate_values_from => '- plain_hash',
            ordered             => 1,
            cargo               => {
                type       => 'leaf',
                value_type => 'string',
            },
        },
        hash2_with_data_migration => {
            type                => 'hash',
            index_type          => 'string',
            migrate_values_from => '- hash_with_data_migration',
            ordered             => 1,
            cargo               => {
                type       => 'leaf',
                value_type => 'string',
            },
        },
    ] );

ok( 1, "config classes created" );

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

my $root = $inst->config_root;

# emulate start of file read
$inst->initial_load_start;

# emulate config file load
$root->load( step => "plain_hash:k1=foo plain_hash:k2=bar", check => 'no' );
ok( 1, "set up plain hash" );

my $hwdm = $root->fetch_element('hash_with_data_migration');
ok( $hwdm, "create hash_with_data_migration element" );
$hwdm->fetch_with_id('new')->store('baz0');

# check data prior to migration
eq_or_diff( [ $hwdm->fetch_all_values ], ['baz0'], "hash data before migration" );

# emulate end of file read
$inst->initial_load_stop;

# test data migration stuff

eq_or_diff( [ $hwdm->fetch_all_indexes ], [qw/new k1 k2/],    "hash keys after migration" );
eq_or_diff( [ $hwdm->fetch_all_values ],  [qw/baz0 foo bar/], "hash data after migration " );

my $hwdm2 = $root->fetch_element('hash2_with_data_migration');
ok( $hwdm2, "create hash2_with_data_migration element" );
eq_or_diff( [ $hwdm2->fetch_all_values ], [qw/baz0 foo bar/], "hash data after 2nd migration " );

memory_cycle_ok( $model, "test memory cycles" );