#
# (c) Jan Gehring <jan.gehring@gmail.com>
#
package Rex::TaskList;
use v5.12.5;
use warnings;
our $VERSION = '1.16.0'; # VERSION
use Data::Dumper;
use Rex::Config;
use Rex::Logger;
use Rex::Interface::Executor;
use vars qw(%tasks);
# will be set from Rex::Transaction::transaction()
our $task_list = {};
sub create {
  my ($class) = @_;
  # create only one object
  if ( ref($task_list) =~ m/^Rex::TaskList::/ ) {
    Rex::Logger::debug(
      "Returning existing distribution class of type: " . ref($task_list) );
    return $task_list;
  }
  my $type = Rex::Config->get_distributor;
  Rex::Logger::debug("Creating new distribution class of type: $type");
  my $class_name = "Rex::TaskList::$type";
  eval "use $class_name";
  if ($@) {
    die("TaskList module not found: $@");
  }
  $task_list = $class_name->new;
  Rex::Logger::debug(
    "new distribution class of type " . ref($task_list) . " created." );
  return $task_list;
}
sub run {
  my ( $class, $task_name, %option ) = @_;
  $class = ref $class ? $class : $class->create;
  my $task = ref $task_name ? $task_name : $class->get_task($task_name);
  my $old_task = $class->{__current_task__};
  $class->{__current_task__} = $task;
  $_->($task) for @{ $task->{before_task_start} };
  $class->run( $task, %option );
  $_->($task) for @{ $task->{after_task_finished} };
  $class->{__current_task__} = $old_task;
}