fix(carts): surface real 7-day views/clicks on the dashboard

Analytics were written (cart_views_daily, click_daily) but never read —
MarshalCart hardcoded ViewsLast7d/ClicksLast7d to 0, so the dashboard
always showed zero. Add CartViews7d/CartClicks7d read queries + a
CartStats7d service helper, and populate the counts in the dashboard
list + single-cart responses.

Author: mayur-tolexo

internal/carts/handlers.go

@@ -64,7 +64,8 @@ func listCarts(svc *Service) http.HandlerFunc {
 		owner, _ := svc.GetUser(r.Context(), uid)
 		for _, c := range list {
 			items, _ := svc.ListCartItems(r.Context(), c.ID)
-			out = append(out, MarshalCart(c, owner, items))
+			v, cl := svc.CartStats7d(r.Context(), c.ID)
+			out = append(out, MarshalCart(c, owner, items, int(v), int(cl)))
 		}
 		writeJSON(w, http.StatusOK, out)
 	}
@@ -86,7 +87,7 @@ func createCart(svc *Service) http.HandlerFunc {
 			return
 		}
 		owner, _ := svc.GetUser(r.Context(), uid)
-		writeJSON(w, http.StatusCreated, MarshalCart(cart, owner, nil))
+		writeJSON(w, http.StatusCreated, MarshalCart(cart, owner, nil, 0, 0))
 	}
 }
 
@@ -112,7 +113,8 @@ func getCart(svc *Service) http.HandlerFunc {
 			return
 		}
 		owner, _ := svc.GetUser(r.Context(), uid)
-		writeJSON(w, http.StatusOK, MarshalCart(cart, owner, items))
+		v, cl := svc.CartStats7d(r.Context(), cart.ID)
+		writeJSON(w, http.StatusOK, MarshalCart(cart, owner, items, int(v), int(cl)))
 	}
 }
 
@@ -147,7 +149,7 @@ func updateCart(svc *Service) http.HandlerFunc {
 			return
 		}
 		owner, _ := svc.GetUser(r.Context(), uid)
-		writeJSON(w, http.StatusOK, MarshalCart(cart, owner, nil))
+		writeJSON(w, http.StatusOK, MarshalCart(cart, owner, nil, 0, 0))
 	}
 }
 

internal/carts/marshal.go

@@ -57,7 +57,9 @@ func MarshalUser(u sqlcgen.User) UserJSON {
 }
 
 // MarshalCart converts a sqlc Cart, its owner, and item rows into CartJSON.
-func MarshalCart(c sqlcgen.Cart, owner sqlcgen.User, items []sqlcgen.ListCartItemsRow) CartJSON {
+// viewsLast7d/clicksLast7d are the analytics counts (0 where not needed, e.g.
+// the public page that doesn't display them).
+func MarshalCart(c sqlcgen.Cart, owner sqlcgen.User, items []sqlcgen.ListCartItemsRow, viewsLast7d, clicksLast7d int) CartJSON {
 	out := CartJSON{
 		ID:               intStr(c.ID),
 		Slug:             c.Slug,
@@ -68,8 +70,8 @@ func MarshalCart(c sqlcgen.Cart, owner sqlcgen.User, items []sqlcgen.ListCartIte
 		Bio:              pgTextStr(c.Description),
 		CoverImageURL:    pgTextStr(c.CoverImageUrl),
 		AccentHex:        "#B5532A",
-		ViewsLast7d:      0,
-		ClicksLast7d:     0,
+		ViewsLast7d:      viewsLast7d,
+		ClicksLast7d:     clicksLast7d,
 		CreatedAt:        c.CreatedAt.Time.Format(time.RFC3339),
 		UpdatedAt:        c.UpdatedAt.Time.Format(time.RFC3339),
 	}

internal/carts/service.go

@@ -60,6 +60,14 @@ func (s *Service) ListMyCarts(ctx context.Context, userID int64) ([]sqlcgen.Cart
 	return s.q.ListCartsByUser(ctx, userID)
 }
 
+// CartStats7d returns the cart's view and click counts over the last 7 days.
+// Best-effort: any read error yields 0 rather than failing the request.
+func (s *Service) CartStats7d(ctx context.Context, cartID int64) (views, clicks int64) {
+	views, _ = s.q.CartViews7d(ctx, cartID)
+	clicks, _ = s.q.CartClicks7d(ctx, pgtype.Int8{Int64: cartID, Valid: true})
+	return views, clicks
+}
+
 // ListMyCoverImages returns the distinct cover image URLs the user has used
 // across their carts, most-recent first — their "personal" cover library.
 func (s *Service) ListMyCoverImages(ctx context.Context, userID int64) ([]string, error) {

internal/db/queries.sql

@@ -135,3 +135,16 @@ UPDATE extension_tokens SET last_used_at = now() WHERE id = $1;
 
 -- name: InsertFeedback :exec
 INSERT INTO feedback (message, email, name, page) VALUES ($1, $2, $3, $4);
+
+-- ─── ANALYTICS (reads) ──────────────────────────────────────────────────────
+
+-- name: CartViews7d :one
+SELECT COALESCE(SUM(views), 0)::bigint AS views
+FROM cart_views_daily
+WHERE cart_id = $1 AND day >= current_date - 6;
+
+-- name: CartClicks7d :one
+SELECT COALESCE(SUM(cd.clicks), 0)::bigint AS clicks
+FROM click_daily cd
+JOIN links l ON cd.link_id = l.id
+WHERE l.cart_id = $1 AND cd.day >= current_date - 6;

internal/db/sqlc/querier.go

@@ -30,6 +30,6 @@ func getPublicCart(svc *carts.Service) http.HandlerFunc {
 			return
 		}
 		w.Header().Set("Content-Type", "application/json")
-		_ = json.NewEncoder(w).Encode(carts.MarshalCart(cart, user, items))
+		_ = json.NewEncoder(w).Encode(carts.MarshalCart(cart, user, items, 0, 0))
 	}
 }