service backend

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

@@ -0,0 +1,57 @@
+package notifications
+
+import (
+	"context"
+
+	"github.com/tech/sendico/pkg/db/account"
+	me "github.com/tech/sendico/pkg/messaging/envelope"
+	gmessaging "github.com/tech/sendico/pkg/messaging/internal/generated"
+	mah "github.com/tech/sendico/pkg/messaging/notifications/account/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"
+	"go.mongodb.org/mongo-driver/bson/primitive"
+	"go.uber.org/zap"
+	"google.golang.org/protobuf/proto"
+)
+
+type AccoountNotificaionProcessor struct {
+	logger  mlogger.Logger
+	handler mah.AccountHandler
+	db      account.DB
+	event   model.NotificationEvent
+}
+
+func (acnp *AccoountNotificaionProcessor) Process(ctx context.Context, envelope me.Envelope) error {
+	var msg gmessaging.AccountCreatedEvent
+	if err := proto.Unmarshal(envelope.GetData(), &msg); err != nil {
+		acnp.logger.Warn("Failed to unmarshall envelope", zap.Error(err), zap.String("topic", acnp.event.ToString()))
+		return err
+	}
+	accountRef, err := primitive.ObjectIDFromHex(msg.AccountRef)
+	if err != nil {
+		acnp.logger.Warn("Failed to restore object ID", zap.Error(err), zap.String("topic", acnp.event.ToString()), zap.String("account_ref", msg.AccountRef))
+		return err
+	}
+	var account model.Account
+	if err := acnp.db.Get(ctx, accountRef, &account); err != nil {
+		acnp.logger.Warn("Failed to fetch account", zap.Error(err), zap.String("topic", acnp.event.ToString()), zap.String("account_ref", msg.AccountRef))
+		return err
+	}
+	return acnp.handler(ctx, &account)
+}
+
+func (acnp *AccoountNotificaionProcessor) GetSubject() model.NotificationEvent {
+	return acnp.event
+}
+
+func NewAccountMessageProcessor(logger mlogger.Logger, handler mah.AccountHandler, db account.DB, action nm.NotificationAction) np.EnvelopeProcessor {
+	event := NewAccountNotification(action)
+	return &AccoountNotificaionProcessor{
+		logger:  logger.Named("message_processor"),
+		handler: handler,
+		db:      db,
+		event:   event,
+	}
+}