chore: initial commit

internal/svc/order/event.go

@@ -0,0 +1,74 @@
+// Copyright (C) 2024 Declan Teevan
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+package order
+
+import (
+	"github.com/hexolan/stocklet/internal/pkg/messaging"
+	eventspb "github.com/hexolan/stocklet/internal/pkg/protogen/events/v1"
+	pb "github.com/hexolan/stocklet/internal/pkg/protogen/order/v1"
+)
+
+func PrepareOrderCreatedEvent(order *pb.Order) ([]byte, string, error) {
+	topic := messaging.Order_State_Created_Topic
+	event := &eventspb.OrderCreatedEvent{
+		Revision: 1,
+
+		OrderId:        order.Id,
+		CustomerId:     order.CustomerId,
+		ItemQuantities: order.Items,
+	}
+
+	return messaging.MarshalEvent(event, topic)
+}
+
+func PrepareOrderPendingEvent(order *pb.Order) ([]byte, string, error) {
+	topic := messaging.Order_State_Pending_Topic
+	event := &eventspb.OrderPendingEvent{
+		Revision: 1,
+
+		OrderId:        order.Id,
+		CustomerId:     order.CustomerId,
+		ItemQuantities: order.Items,
+	}
+
+	return messaging.MarshalEvent(event, topic)
+}
+
+func PrepareOrderRejectedEvent(order *pb.Order) ([]byte, string, error) {
+	topic := messaging.Order_State_Rejected_Topic
+	event := &eventspb.OrderRejectedEvent{
+		Revision: 1,
+
+		OrderId:       order.Id,
+		TransactionId: order.TransactionId,
+		ShippingId:    order.ShippingId,
+	}
+
+	return messaging.MarshalEvent(event, topic)
+}
+
+func PrepareOrderApprovedEvent(order *pb.Order) ([]byte, string, error) {
+	topic := messaging.Order_State_Approved_Topic
+	event := &eventspb.OrderApprovedEvent{
+		Revision: 1,
+
+		OrderId:       order.Id,
+		TransactionId: order.GetTransactionId(),
+		ShippingId:    order.GetShippingId(),
+	}
+
+	return messaging.MarshalEvent(event, topic)
+}