package Data::MultiValued::Tags;
use Moose;
use MooseX::Params::Validate;
use Moose::Util::TypeConstraints;
use MooseX::Types::Moose qw(Num Str Undef Any);
use Data::MultiValued::Exceptions;
use Data::MultiValued::TagContainer;

# ABSTRACT: Handle values with tags and validity ranges

has _storage => (
    is => 'rw',
    isa => class_type('Data::MultiValued::TagContainer'),
    init_arg => undef,
    lazy_build => 1,
);

sub _build__storage {
    Data::MultiValued::TagContainer->new();
}

sub _rebless_storage {
    my ($self) = @_;

    bless $self->{_storage},'Data::MultiValued::TagContainer';
}

sub _as_hash {
    my ($self) = @_;

    my %ret = %{$self->_storage};
    return {_storage=>\%ret};
}

sub set {
    my ($self,%args) = validated_hash(
        \@_,
        tag => { isa => Str, optional => 1, },
        value => { isa => Any, },
    );

    $self->_storage->get_or_create(\%args)
         ->{value} = $args{value};
}

sub get {
    my ($self,%args) = validated_hash(
        \@_,
        tag => { isa => Str, optional => 1, },
    );

    $self->_storage->get(\%args)
         ->{value};
}

sub clear {
    my ($self) = @_;

    $self->_clear_storage;
}

1;