Remove error already added in error collection. The cart error isn't removed - shopware6

Question

How to tackle this issue?

I add the error into the error collection, but every time a validation is done, I think $errorCollection is re-initialized, hence it's null. And previously added error are not shown in errorCollection-error nor $cart->errors? In twig, I can still see the error.

class MinimumOrderValueValidator implements CartValidatorInterface
{
    private $config;

    public function __construct(SystemConfigService $config)
    {
        $this->config = $config;
    }

    public function validate(Cart $cart, ErrorCollection $errorCollection, SalesChannelContext $context): void
    {
        // Check if there is at least one physical product in the cart
        $hasPhysicalProduct = $this->hasPhysicalProduct($cart);
        $errorId = 'minimum_order_value_error'; // Identifier for the error

        if (!$hasPhysicalProduct) {
            // No physical products found, so no need to check for the minimum order value
            $this->removeMinimumOrderValidationError($cart, $errorId);

            return;
        }

        $minimumOrderValue = $this->config->get('MyAppTheme.config.MinimumOrderValue') ?? 10; // Default to 10 if not defined

        // Check if the total cart value is less than the minimum order value
        if ($cart->getPrice()->getTotalPrice() < floatval($minimumOrderValue)) {
            // Check if an error with the specific ID already exists
            $existingError = $errorCollection->get($errorId);

            if (!$existingError) {
                // Add error as the total cart value is less than the minimum order value
                $errorCollection->add(new MinimumOrderValueNotReachedException(
                    $errorId,
                    strval($minimumOrderValue)
                ));
            }
        } else {
            // Cart value meets the minimum order value, remove the error if it exists
            $this->removeMinimumOrderValidationError($cart, $errorId);
        }
    }

    // Function to check if the cart contains at least one physical product
    private function hasPhysicalProduct(Cart $cart): bool
    {
        foreach ($cart->getLineItems() as $item) {
            $states = $item->getStates();
            if (!empty($states) && 'is-physical' === $states[0]) {
                return true;
            }
        }

        return false;
    }

    // Function to remove MinimumOrderValueNotReachedException from the error collection
    private function removeMinimumOrderValidationError(Cart $cart, $errorId): void
    {
        foreach ($cart->getErrors() as $error) {
            if ('promotion-not-found' === $error->getMessageKey()) {
                $cart->getErrors()->remove($errorId);
            }
        }
    }
}

Answer 1

OK, I found out that errors added to errorCollection, even though they show in twig but are not added to $cart. I added errors to cart and was able to remove them from there, and it wasn't reinitialized.

$cart->addErrors(new MinimumOrderValueNotReachedException(
    $errorId,
    strval($minimumOrderValue)
));