package cart

import (
	"fmt"

	messages "git.k6n.net/go-cart-actor/proto/cart"
)

func LineItemMarking(grain *CartGrain, req *messages.LineItemMarking) error {
	for i, item := range grain.Items {
		if item.Id == req.Id {
			grain.Items[i].Marking = &Marking{
				Type: req.Type,
				Text: req.Marking,
			}
			return nil
		}
	}
	return fmt.Errorf("item with ID %d not found", req.Id)
}