package DeWeave::Collection::Bookmarks;
use Moose;
use namespace::autoclean;
use DeWeave::BO::Bookmark::Base;
use DeWeave::BO::Bookmark::Bookmark;
use DeWeave::BO::Bookmark::Microsummary;
use DeWeave::BO::Bookmark::Folder;
use DeWeave::BO::Bookmark::Livemark;
use DeWeave::BO::Bookmark::Separator;
use DeWeave::BO::Bookmark::Query;
use MooseX::Types::Moose qw(HashRef);

extends 'DeWeave::Collection';

has _item_cache => (
    isa => HashRef['DeWeave::BO::Bookmark::Base'],
    lazy_build => 1,
    traits => ['Hash'],
    handles => {
        item_by_id => 'get',
        item_known => 'exists',
    },
);

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

    my %ret;

    for my $item (@{$self->items}) {
        $ret{$item->id}=$item;
    }

    return \%ret;
}

sub item_class {
    my ($class,$input_item) = @_;

    my $item_class = 'Base';
    if (exists $input_item->{type} && defined $input_item->{type}) {
        $item_class = ucfirst($input_item->{type});
    }

    return "DeWeave::BO::Bookmark::$item_class";
}

sub as_tree {
    my ($self,$start_id) = @_;

    $start_id ||= 'menu';
    return $self->_as_tree_rec($start_id,0);
}

sub _as_tree_rec {
    my ($self,$start_id,$depth) = @_;

    if (!$self->item_known($start_id)) {
        return (('  ' x $depth)." $start_id is unknown\n");
    }

    my $item = $self->item_by_id($start_id);

    my $padding = '  ' x $depth;
    my $out = $item->as_string;
    $out =~ s/^/$padding/smg;

    if ($item->can('children')) {
        for my $child_id (@{$item->children}) {
            $out .= $self->_as_tree_rec($child_id,$depth+1);
        }
    }
    return $out;
}

1;