test add vouchers and shared service

cmd/cart/cart-grain.go

@@ -8,6 +8,7 @@ import (
 	"time"
 
 	messages "git.tornberg.me/go-cart-actor/pkg/messages"
+	"git.tornberg.me/go-cart-actor/pkg/voucher"
 )
 
 // Legacy padded [16]byte CartId and its helper methods removed.
@@ -63,17 +64,18 @@ type CartGrain struct {
 	lastItemId        int
 	lastDeliveryId    int
 	lastAccess        time.Time
-	lastChange        time.Time       // unix seconds of last successful mutation (replay sets from event ts)
-	Id                CartId          `json:"id"`
-	Items             []*CartItem     `json:"items"`
-	TotalPrice        int64           `json:"totalPrice"`
-	TotalTax          int64           `json:"totalTax"`
-	TotalDiscount     int64           `json:"totalDiscount"`
-	Deliveries        []*CartDelivery `json:"deliveries,omitempty"`
-	Processing        bool            `json:"processing"`
-	PaymentInProgress bool            `json:"paymentInProgress"`
-	OrderReference    string          `json:"orderReference,omitempty"`
-	PaymentStatus     string          `json:"paymentStatus,omitempty"`
+	lastChange        time.Time          // unix seconds of last successful mutation (replay sets from event ts)
+	Id                CartId             `json:"id"`
+	Items             []*CartItem        `json:"items"`
+	TotalPrice        int64              `json:"totalPrice"`
+	TotalTax          int64              `json:"totalTax"`
+	TotalDiscount     int64              `json:"totalDiscount"`
+	Deliveries        []*CartDelivery    `json:"deliveries,omitempty"`
+	Processing        bool               `json:"processing"`
+	PaymentInProgress bool               `json:"paymentInProgress"`
+	OrderReference    string             `json:"orderReference,omitempty"`
+	PaymentStatus     string             `json:"paymentStatus,omitempty"`
+	Vouchers          []*voucher.Voucher `json:"vouchers,omitempty"`
 }
 
 func (c *CartGrain) GetId() uint64 {

cmd/cart/main.go

@@ -16,6 +16,7 @@ import (
 	"git.tornberg.me/go-cart-actor/pkg/discovery"
 	messages "git.tornberg.me/go-cart-actor/pkg/messages"
 	"git.tornberg.me/go-cart-actor/pkg/proxy"
+	"git.tornberg.me/go-cart-actor/pkg/voucher"
 	"github.com/prometheus/client_golang/prometheus"
 	"github.com/prometheus/client_golang/prometheus/promauto"
 	"github.com/prometheus/client_golang/prometheus/promhttp"
@@ -92,10 +93,14 @@ func GetDiscovery() discovery.Discovery {
 	return discovery.NewK8sDiscovery(client)
 }
 
+type MutationContext struct {
+	VoucherService voucher.Service
+}
+
 func main() {
 
 	controlPlaneConfig := actor.DefaultServerConfig()
-
+	ctx := MutationContext{}
 	reg := actor.NewMutationRegistry()
 	reg.RegisterMutations(
 		actor.NewMutation(AddItem, func() *messages.AddItem {
@@ -125,6 +130,9 @@ func main() {
 		actor.NewMutation(ClearCart, func() *messages.ClearCartRequest {
 			return &messages.ClearCartRequest{}
 		}),
+		actor.NewMutation(ctx.AddVoucher, func() *messages.AddVoucher {
+			return &messages.AddVoucher{}
+		}),
 	)
 	diskStorage := actor.NewDiskStorage[CartGrain]("data", reg)
 	poolConfig := actor.GrainPoolConfig[CartGrain]{

cmd/cart/mutation_add_voucher.go

@@ -0,0 +1,26 @@
+package main
+
+import (
+	"fmt"
+
+	"git.tornberg.me/go-cart-actor/pkg/messages"
+)
+
+func (ctx *MutationContext) AddVoucher(g *CartGrain, m *messages.AddVoucher) error {
+	if m == nil {
+		return fmt.Errorf("AddVoucher: nil payload")
+	}
+
+	voucher, err := ctx.VoucherService.GetVoucher(m.Code)
+	if err != nil {
+		return fmt.Errorf("AddVoucher: %w", err)
+	}
+
+	if voucher == nil {
+		return nil
+	}
+
+	g.Vouchers = append(g.Vouchers, voucher)
+	g.UpdateTotals()
+	return nil
+}

cmd/cart/pool-server.go

@@ -437,6 +437,19 @@ func (s *PoolServer) ProxyHandler(fn func(w http.ResponseWriter, r *http.Request
 	}
 }
 
+func (s *PoolServer) AddVoucherHandler(w http.ResponseWriter, r *http.Request, cartId CartId) error {
+	msg := &messages.AddVoucher{}
+	json.NewDecoder(r.Body).Decode(msg)
+	reply, err := s.Apply(uint64(cartId), msg)
+	if err != nil {
+		w.WriteHeader(http.StatusInternalServerError)
+		w.Write([]byte(err.Error()))
+		return err
+	}
+	s.WriteResult(w, reply)
+	return nil
+}
+
 func (s *PoolServer) Serve() *http.ServeMux {
 
 	mux := http.NewServeMux()
@@ -458,6 +471,8 @@ func (s *PoolServer) Serve() *http.ServeMux {
 	mux.HandleFunc("POST /delivery", CookieCartIdHandler(s.ProxyHandler(s.SetDeliveryHandler)))
 	mux.HandleFunc("DELETE /delivery/{deliveryId}", CookieCartIdHandler(s.ProxyHandler(s.RemoveDeliveryHandler)))
 	mux.HandleFunc("PUT /delivery/{deliveryId}/pickupPoint", CookieCartIdHandler(s.ProxyHandler(s.SetPickupPointHandler)))
+	mux.HandleFunc("PUT /voucher", CookieCartIdHandler(s.ProxyHandler(s.AddVoucherHandler)))
+
 	//mux.HandleFunc("GET /checkout", CookieCartIdHandler(s.ProxyHandler(s.HandleCheckout)))
 	//mux.HandleFunc("GET /confirmation/{orderId}", CookieCartIdHandler(s.ProxyHandler(s.HandleConfirmation)))