service backend

api/pkg/messaging/internal/notifications/object/object.go

@@ -0,0 +1,46 @@
+package notifications
+
+import (
+	messaging "github.com/tech/sendico/pkg/messaging/envelope"
+	gmessaging "github.com/tech/sendico/pkg/messaging/internal/generated"
+	"github.com/tech/sendico/pkg/model"
+	nm "github.com/tech/sendico/pkg/model/notification"
+	"github.com/tech/sendico/pkg/mservice"
+	"go.mongodb.org/mongo-driver/bson/primitive"
+	"google.golang.org/protobuf/proto"
+)
+
+type ObjectNotification struct {
+	messaging.Envelope
+	actorAccountRef primitive.ObjectID
+	objectRef       primitive.ObjectID
+}
+
+func (acn *ObjectNotification) Serialize() ([]byte, error) {
+	var msg gmessaging.ObjectUpdatedEvent
+	msg.ActorAccountRef = acn.actorAccountRef.Hex()
+	msg.ObjectRef = acn.objectRef.Hex()
+	data, err := proto.Marshal(&msg)
+	if err != nil {
+		return nil, err
+	}
+	return acn.Envelope.Wrap(data)
+}
+
+func NewObjectNotification(t mservice.Type, action nm.NotificationAction) model.NotificationEvent {
+	return model.NewNotification(t, action)
+}
+
+func NewObjectImp(
+	sender string,
+	actorAccountRef primitive.ObjectID,
+	objectType mservice.Type,
+	objectRef primitive.ObjectID,
+	action nm.NotificationAction,
+) messaging.Envelope {
+	return &ObjectNotification{
+		Envelope:        messaging.CreateEnvelope(sender, NewObjectNotification(objectType, action)),
+		actorAccountRef: actorAccountRef,
+		objectRef:       objectRef,
+	}
+}

api/pkg/messaging/internal/notifications/object/processor.go

@@ -0,0 +1,55 @@
+package notifications
+
+import (
+	"context"
+
+	me "github.com/tech/sendico/pkg/messaging/envelope"
+	gmessaging "github.com/tech/sendico/pkg/messaging/internal/generated"
+	moh "github.com/tech/sendico/pkg/messaging/notifications/object/handler"
+	np "github.com/tech/sendico/pkg/messaging/notifications/processor"
+	"github.com/tech/sendico/pkg/mlogger"
+	"github.com/tech/sendico/pkg/model"
+	nm "github.com/tech/sendico/pkg/model/notification"
+	"github.com/tech/sendico/pkg/mservice"
+	"go.mongodb.org/mongo-driver/bson/primitive"
+	"go.uber.org/zap"
+	"google.golang.org/protobuf/proto"
+)
+
+type ObjectNotificaionProcessor struct {
+	logger  mlogger.Logger
+	handler moh.ObjectUpdateHandler
+	event   model.NotificationEvent
+}
+
+func (ounp *ObjectNotificaionProcessor) Process(ctx context.Context, envelope me.Envelope) error {
+	var msg gmessaging.ObjectUpdatedEvent
+	if err := proto.Unmarshal(envelope.GetData(), &msg); err != nil {
+		ounp.logger.Warn("Failed to unmarshall envelope", zap.Error(err), zap.String("topic", ounp.event.ToString()))
+		return err
+	}
+	actorAccountRef, err := primitive.ObjectIDFromHex(msg.ActorAccountRef)
+	if err != nil {
+		ounp.logger.Warn("Failed to restore actor account reference", zap.Error(err), zap.String("topic", ounp.event.ToString()), zap.String("actor_account_ref", msg.ActorAccountRef))
+		return err
+	}
+	objectRef, err := primitive.ObjectIDFromHex(msg.ObjectRef)
+	if err != nil {
+		ounp.logger.Warn("Failed to restore object reference", zap.Error(err), zap.String("topic", ounp.event.ToString()), zap.String("object_ref", msg.ObjectRef))
+		return err
+	}
+
+	return ounp.handler(ctx, envelope.GetSignature().GetType(), objectRef, actorAccountRef, envelope.GetSignature().GetAction())
+}
+
+func (acnp *ObjectNotificaionProcessor) GetSubject() model.NotificationEvent {
+	return acnp.event
+}
+
+func NewObjectChangeMessageProcessor(logger mlogger.Logger, handler moh.ObjectUpdateHandler, objectType mservice.Type, action nm.NotificationAction) np.EnvelopeProcessor {
+	return &ObjectNotificaionProcessor{
+		logger:  logger.Named("message_processor"),
+		handler: handler,
+		event:   NewObjectNotification(objectType, action),
+	}
+}