Question: Resizing images in create and update method

Hello everyone! Thanks for the interest in my topic.

I have a question. To show you, Let's assume that I have a Product model and a Product controller. Let's assume that my Product model has the "image" field, that handles the image file name.

Everytime that I create or update a product, I need to upload and resize an image. I don't want to rewrite my code for every method that I need to upload and resize the product image. So I found the "Events" and "Commands", but I don't know which to use in this case (Events or Commands). Someone can help me with that?

My idea is register an "Event" or "Command" and then, call only the Event/Command on my controller, like this:

public function create(ProductRequest $request)
{
    $input = $request->all();
    $product = new Product();

    // Something like:
    // Event::fire(new ResizeProductImage($input['file']));
    // or:
    // $this->dispatch(new ResizeProductImage($input['file']));
    // I need that my Event/Command returns the file name ($filename). 
    // This way I can use the new file name in my "fill" method.
    
    $product->fill($input);
    $product->save();
}

Thanks!!