amazon events published as server side event

server/sse/db_event_publisher.go

@@ -0,0 +1,44 @@
+package sse
+
+import (
+	"context"
+	"fmt"
+	"ruben/inventory2/domains/raw_events"
+)
+
+type (
+	DBEventPublisher struct {
+		queue        sender
+		getAccountID func(context.Context, raw_events.Event) (int64, error)
+		getEventType func(acctID int64, e raw_events.Event) (string, error)
+	}
+)
+
+func (q *Queue) NewDBEventPublisher(
+	getAccountID func(context.Context, raw_events.Event) (int64, error),
+	getEventType func(acctID int64, e raw_events.Event) (string, error),
+) *DBEventPublisher {
+	return &DBEventPublisher{
+		queue:        q,
+		getAccountID: getAccountID,
+		getEventType: getEventType,
+	}
+}
+
+func (p *DBEventPublisher) Notify(ctx context.Context, e raw_events.Event) error {
+	acctID, err := p.getAccountID(ctx, e)
+	if err != nil {
+		return fmt.Errorf("failed to get account id: %w", err)
+	}
+
+	et, err := p.getEventType(acctID, e)
+	if err != nil {
+		return fmt.Errorf("failed to compute event type: %w", err)
+	}
+
+	if err := p.queue.Send(ctx, StandardEvent(acctID, et)); err != nil {
+		return fmt.Errorf("failed to send sse event to listener: %w", err)
+	}
+
+	return nil
+}