package SlackBuild::Registry;
use strict;
use warnings;
use Carp;
use SlackBuild::Base qw(backend:ro);

=head1 NAME

SlackBuild::Registry - registry of completed builds

=head2 new

    $x = new SlackBuild::Registry(BACKEND, KW=>VAL, ...)

Creates new registry object. I<BACKEND> is the name of the backend
to use. The class B<SlackBuild::Registry::Backend::I<BACKEND>> must
exist. The arguments (I<KW =E<gt> VAL> pairs) are passed to its
constructor.    
    
=cut    

sub new {
    my $class = shift;
    my $backend = shift or croak "no backend specified";
    $backend = "SlackBuild::Registry::Backend::$backend";
    eval "use $backend";
    croak $@ if $@;
    my $self = bless {}, $class;
    $self->{backend} = $backend->new(@_);
    return $self;
}

=head2 lookup

    @a = $x->lookup($pattern)

Returns a sorted array of SlackBuild::Registry::Record objects matching the
B<SlackBuild::Registry::Pattern> object B<$pattern>.

=cut

sub lookup {
    my ($self, $pattern) = @_;
    return $self->backend->lookup($pattern);
}

1;