package WebService::TFL::Bus::Response;
use Moo;
use Types::Standard -all;
use WebService::TFL::Bus::Prediction;
use namespace::clean;

has predictions => (
    is => 'ro',
    isa => ArrayRef[InstanceOf['WebService::TFL::Bus::Prediction']],
);

sub _sort {
    return sort {
        $a->destinationName cmp $b->destinationName
            ||
            $a->expectedArrival <=> $b->expectedArrival
            } @_;
}

sub new_from_response {
    my ($class,$response_data) = @_;

    return $class->new({
        predictions => [
            _sort
            map { WebService::TFL::Bus::Prediction->new_from_response($_) }
            grep { $_->{'$type'} =~ /\bPrediction\b/ }
            $response_data->@*
        ],
    });
}

sub new_merged {
    my ($class, @responses) = @_;

    return $class->new({
        predictions => [
            _sort map { $_->predictions->@* } @responses
        ],
    });
}

1;