@foreach ($items as $item)

    <option value="{{ $item->id }}"{{ $item->id == $menu->parent ? 'selected' : '' }}>
        {{ str_repeat('-', ($loop->depth - 1) * 3) . $item->name }}</option>

    @if (isset($menus[$item->id]))
        @include('admin.menu.partials.list', ['items' => $menus[$item->id]])
    @endif
@endforeach