package WebCoso::Pipeline::Base;
use strict;
use warnings;
use WebCoso::X;
use WebCoso::Step;
use base 'Class::Data::Inheritable';

__PACKAGE__->mk_classdata('_steps');

sub set_steps {
    my ($class,@steps)=@_;

    my @step_instances=();

    while (@steps) {
        my $step_name=shift @steps;
        my $step_init_args=shift @steps;

        my $full_step_name="WebCoso::Step::$step_name";
        if (! WebCoso::Step->is_step($full_step_name)) {
            WebCoso::X::NoSuchStep->throw(
                pipeline => $class,
                step => $_,
            );
        }

        push @step_instances,$full_step_name->new($step_init_args);
    }

    $class->_steps([@step_instances]);
}

sub process {
    my ($class, $resource,$stage)=@_;

    for my $step (@{$class->_steps()}) {
        $step->process($resource,$stage);
    }

    return 1;
}

1;