package Test::BDD::Cucumber::Model::Result;
BEGIN {
  $Test::BDD::Cucumber::Model::Result::VERSION = '0.15';
}

=head1 NAME

Test::BDD::Cucumber::Model::Result - Encapsulates a result state

=head1 VERSION

version 0.15

=head1 DESCRIPTION

Encapsulation of result state - whether that's for a step, scenario, or feature

=cut

use strict;
use warnings;
use Moose;
use Moose::Util::TypeConstraints;

enum 'StepStatus', [qw( passing failing pending undefined )];

=head1 ATTRIBUTES

=head2 result

Enum of: C<passing>, C<failing>, C<pending> or C<undefined>. C<pending> is used
if there was any TODO output from a test, and C<undefined> for a test that
wasn't run, either due to no matching step, or because a previous step failed.

=cut

has 'result' => ( is => 'ro', isa => 'StepStatus', required => 1 );

=head2 output

The underlying test-output that contributed to a result.

=cut

has 'output' => ( is => 'ro', isa => 'Str',        required => 1 );

=head1 METHODS

=head2 from_children

Collates the Result objects you pass in, and returns one that encompasses all
of them.

As they may be varied, it runs through them in order of C<failing>,
C<undefined>, C<pending> and C<passing> - the first it finds is the overall
result. The empty set passes.

=cut

sub from_children {
	my ( $class, @children ) = @_;

	# We'll be looking for the presence of just one of any of the
	# short-circuiting statuses, but we need to keep a sum of all the output.
	# Passing is the default state, so we cheat and say there was one of them.
	my %results = ( passing => 1 );
	my $output;

	for my $child ( @children ) {
		# Save the status of that child
		$results{ $child->result }++;
		# Add its output
		$output .= $child->output . "\n"
	}
	$output .= "\n";

	for my $status ( qw( failing undefined pending passing ) ) {
		if ( $results{$status} ) {
			return $class->new({
				result => $status,
				output => $output
			});
		}
	}
}

1;