add profile actors

internal/ucp/cart.go

@@ -3,10 +3,12 @@ package ucp
 import (
 	"context"
 	"encoding/json"
+	"log"
 	"net/http"
 	"sync"
 
 	"git.k6n.net/mats/go-cart-actor/pkg/cart"
+	"git.k6n.net/mats/go-cart-actor/pkg/profile"
 	"git.k6n.net/mats/go-cart-actor/pkg/actor"
 	messages "git.k6n.net/mats/go-cart-actor/proto/cart"
 	"google.golang.org/protobuf/proto"
@@ -14,8 +16,9 @@ import (
 
 // CartServer is the UCP REST adapter over the cart grain pool.
 type CartServer struct {
-	applier   CartApplier
-	newCartId func() (cart.CartId, error)
+	applier        CartApplier
+	profileApplier ProfileApplier // optional; when set, links carts to customer profiles
+	newCartId      func() (cart.CartId, error)
 }
 
 // NewCartServer builds a UCP REST adapter over a cart grain pool.
@@ -26,6 +29,11 @@ func NewCartServer(applier CartApplier) *CartServer {
 	}
 }
 
+// SetProfileApplier enables identity linking on this server.
+func (s *CartServer) SetProfileApplier(pa ProfileApplier) {
+	s.profileApplier = pa
+}
+
 // ---------------------------------------------------------------------------
 // UCP Cart endpoints
 // ---------------------------------------------------------------------------
@@ -113,12 +121,21 @@ func (s *CartServer) handleUpdateCart(w http.ResponseWriter, r *http.Request) {
 		}
 	}
 
-	// Set user ID.
+	// Set user ID and auto-link cart to customer profile.
 	if req.UserId != nil && *req.UserId != "" {
 		if _, err := s.applier.Apply(r.Context(), id, &messages.SetUserId{UserId: *req.UserId}); err != nil {
 			writeError(w, http.StatusInternalServerError, "failed to set user: "+err.Error())
 			return
 		}
+
+		// Auto-link this cart to the customer's profile if identity linking is enabled.
+		if s.profileApplier != nil {
+			if pid, ok := profile.ParseProfileId(*req.UserId); ok {
+				if err := linkCartToProfile(s.profileApplier, r.Context(), uint64(pid), id); err != nil {
+					log.Printf("identity: failed to link cart %d to profile %d: %v", id, uint64(pid), err)
+				}
+			}
+		}
 	}
 
 	g, err := s.applier.Get(r.Context(), id)