chore: initial commit

internal/svc/payment/event.go

@@ -0,0 +1,129 @@
+// 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 payment
+
+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/payment/v1"
+)
+
+func PrepareBalanceCreatedEvent(bal *pb.CustomerBalance) ([]byte, string, error) {
+	topic := messaging.Payment_Balance_Created_Topic
+	event := &eventspb.BalanceCreatedEvent{
+		Revision: 1,
+
+		CustomerId: bal.CustomerId,
+		Balance:    bal.Balance,
+	}
+
+	return messaging.MarshalEvent(event, topic)
+}
+
+func PrepareBalanceCreditedEvent(customerId string, amount float32, newBalance float32) ([]byte, string, error) {
+	topic := messaging.Payment_Balance_Credited_Topic
+	event := &eventspb.BalanceCreditedEvent{
+		Revision: 1,
+
+		CustomerId: customerId,
+		Amount:     amount,
+		NewBalance: newBalance,
+	}
+
+	return messaging.MarshalEvent(event, topic)
+}
+
+func PrepareBalanceDebitedEvent(customerId string, amount float32, newBalance float32) ([]byte, string, error) {
+	topic := messaging.Payment_Balance_Debited_Topic
+	event := &eventspb.BalanceDebitedEvent{
+		Revision: 1,
+
+		CustomerId: customerId,
+		Amount:     amount,
+		NewBalance: newBalance,
+	}
+
+	return messaging.MarshalEvent(event, topic)
+}
+
+func PrepareBalanceClosedEvent(bal *pb.CustomerBalance) ([]byte, string, error) {
+	topic := messaging.Payment_Balance_Closed_Topic
+	event := &eventspb.BalanceClosedEvent{
+		Revision: 1,
+
+		CustomerId: bal.CustomerId,
+		Balance:    bal.Balance,
+	}
+
+	return messaging.MarshalEvent(event, topic)
+}
+
+func PrepareTransactionLoggedEvent(transaction *pb.Transaction) ([]byte, string, error) {
+	topic := messaging.Payment_Transaction_Created_Topic
+	event := &eventspb.TransactionLoggedEvent{
+		Revision: 1,
+
+		TransactionId: transaction.Id,
+		Amount:        transaction.Amount,
+		OrderId:       transaction.OrderId,
+		CustomerId:    transaction.CustomerId,
+	}
+
+	return messaging.MarshalEvent(event, topic)
+}
+
+func PrepareTransactionReversedEvent(transaction *pb.Transaction) ([]byte, string, error) {
+	topic := messaging.Payment_Transaction_Reversed_Topic
+	event := &eventspb.TransactionReversedEvent{
+		Revision: 1,
+
+		TransactionId: transaction.Id,
+		Amount:        transaction.Amount,
+		OrderId:       transaction.OrderId,
+		CustomerId:    transaction.CustomerId,
+	}
+
+	return messaging.MarshalEvent(event, topic)
+}
+
+func PreparePaymentProcessedEvent_Success(transaction *pb.Transaction) ([]byte, string, error) {
+	topic := messaging.Payment_Processing_Topic
+	event := &eventspb.PaymentProcessedEvent{
+		Revision: 1,
+
+		Type:          eventspb.PaymentProcessedEvent_TYPE_SUCCESS,
+		OrderId:       transaction.OrderId,
+		CustomerId:    transaction.CustomerId,
+		Amount:        transaction.Amount,
+		TransactionId: &transaction.Id,
+	}
+
+	return messaging.MarshalEvent(event, topic)
+}
+
+func PreparePaymentProcessedEvent_Failure(orderId string, customerId string, amount float32) ([]byte, string, error) {
+	topic := messaging.Payment_Processing_Topic
+	event := &eventspb.PaymentProcessedEvent{
+		Revision: 1,
+
+		Type:       eventspb.PaymentProcessedEvent_TYPE_FAILED,
+		OrderId:    orderId,
+		CustomerId: customerId,
+		Amount:     amount,
+	}
+
+	return messaging.MarshalEvent(event, topic)
+}