package GridFiller::Scaler;
use Moose;
use namespace::autoclean;
use GridFiller::Types qw(GridT);
use MooseX::Types::Moose qw(Int);
use Carp;
use MooseX::Params::Validate 'pos_validated_list';

sub scale {
    shift; # class
    my ($input_grid,$scale) = pos_validated_list(
        \@_,
        { isa => GridT },
        { isa => Int },
    );

    my @output_grid;

    for my $row (@$input_grid) {
        my @out_row;

        for my $cell (@$row) {
            push @out_row, $cell for 1..$scale;
        }

        push @output_grid,[@out_row] for 1..$scale;
    }

    return \@output_grid;
}

1;