Change productname in cart, quote, invoice Magento 2 - magento

Question

I need to change the productname visible for the customer after adding it to the cart. Also it should show on invoice, order email and everything else visible for the customer.
I made an extension with observer checkout_cart_product_add_after
$item = $observer->getEvent()->getData('quote_item');
$item = ( $item->getParentItem() ? $item->getParentItem() : $item );
$item->getProduct()->setName('this is the productname');
$item->getProduct()->setIsSuperMode(true);
But the original productname is still visible on minicart, cartpage, etc.
The 'add to cart message' is the only place where the new changed productname is visible. What should I change?

Answer 1

use this event "sales_quote_item_set_product"
and in observer set name like this:
/* For minicart and cart */
$item->getProduct()->setName('Custom Name');
/* For checkout page cart items */
$item->setName('Custom Name');
$item->getProduct()->setIsSuperMode(true);

Answer 2

Found the solutions myself.
Hope this helps anyone searching for it, or if you have comments how it could be done a better way, please let me know.
Created a plugin with this code:
class Item
{
public function afterSetProduct(
\Magento\Quote\Model\Quote\Item $subject,
$result
){
$subject->setName('New Name');
}
}
So this sets a new name to the quote item, visible in everything, excepting cart and mini cart.
Now I have got my new productname visible in:
- Added to cart message
- Quote-item, even in admin and invoices
But not in:
- Mini cart
- Cartpage
For the cart page:
I changed output of function getProduct in Magento\Checkout\Block\Cart\Item\Renderer:
class Renderer
{
public function afterGetProductName(
\Magento\Checkout\Block\Cart\Item\Renderer $subject,
$result
){
return 'this is the name';
}
}
For minicart, also with plugin:
class DefaultItem
{
public function aroundGetItemData(
\Magento\Checkout\CustomerData\AbstractItem $subject,
\Closure $proceed,
\Magento\Quote\Model\Quote\Item $item
){
$data = $proceed($item);
$data['product_name'] = 'this is the productname';
return $data;
}