显示具有父类别和子类别Laravel的产品

I have model category with relations of parent and children:

public function children()
{
    return $this->hasMany(self::class, 'parent_id');
}

public function parent()
{
    return $this->belongsTo(self::class, 'parent_id')->withoutGlobalScope('active');
}

public function products()
{
    return $this->hasMany(Product::class);
}

And I have Product model with relation category:

public function category()
{
    return $this->belongsTo(Category::class);
}

In CategoryController I have method show:

public function show(Category $category)
{
    return view('main', compact('category'));
}

In blade I show product with:

     @php $products = isset($category) ? $category->products()->paginate(15) : $products; @endphp
     @include('partials.products')

If isset category variable then I get products. But this only for certain category. How I can show parent and child category title and products in this format table:

<table>
    <tr>
         <th>Name Product</th>
         <th> Price </th>
    </td>
    <tr>
           <td colspan=2>Parent Category title of products</td>
    </tr>
    <tr>
            <td>Product of parent category #1</td>
            <td>890 $ </td>
    </tr>
    <tr> 
           <td colspan=2>Child category title of products</td>
    </tr>
    <tr>
            <td>Product of child category #1</td>
            <td>890 $ </td>
    </tr>
    ...
</table>

Now I have this:

<table class="table">
                            <tr>
                                <th class="th-1">Name</h2></th>
                                <th class="th-2">Count <!--<span><i class="fas fa-chevron-up"></i>--></span></th>
                                <th class="th-3">Price <!--<span><i class="fas fa-chevron-up"></i>--></span></th>
                                <th class="th-4">Sales <!--<span><i class="fas fa-chevron-up"></i>--></span></th>
                                <th class="th-5"></th>
                            </tr>
                            {{-- {{ dd($products->groupBy('category_id')) }} --}}
                            @php 
                                $products = isset($category) ? $category->products()->paginate(15) : $products; 
                            @endphp
                            @include('partials.products')
                        </table>

In partials.products:

@forelse($products->groupBy('category.title') as $title => $prods)

<tr class="category {{ $sub ?? '' }}">
    <td colspan="5">{{ $title }}</td>
</tr>

 //if have parent products, write it's...
 //@include('partials.product') //parent products

 <tr class="category {{ $sub ?? '' }}">
    <td colspan="5">{{ $subtitle }}</td>
 </tr> //write category child title, if not empty with products

@include('partials.product') //child products

@empty
<tr>
    <td colspan="5">
        @isset($category)
            <p>Items on category not found :(</p>
        @endisset
    </td>
</tr>
@endforelse

Please help resolve this question..