✨ Upgrade Go version to 1.23.0 and update dependencies. Introduce new application structure with Clean Architecture principles, including message processing, NATS integration, and PostgreSQL repository. Add configuration management using Koanf and structured logging with Zap. Remove legacy GraphQL integration and related files. Implement dependency injection with Google Wire.

internal/infra/nats/jetstream.go

@@ -0,0 +1,66 @@
+package nats
+
+import (
+	"caatsm/internal/infra/config"
+	"fmt"
+	"go.uber.org/zap"
+	"github.com/nats-io/nats.go"
+	"time"
+)
+
+// ProvideJetStream creates a NATS JetStream connection
+func ProvideJetStream(cfg *config.Config, logger *zap.Logger) (nats.JetStreamContext, error) {
+	// Connect to NATS
+	nc, err := nats.Connect(
+		cfg.NATS.URL,
+		nats.RetryOnFailedConnect(true),
+		nats.Timeout(cfg.Timeouts.Server),
+		nats.ReconnectWait(cfg.Timeouts.ReconnectWait),
+		nats.DisconnectErrHandler(func(nc *nats.Conn, err error) {
+			if err != nil {
+				logger.Warn("NATS disconnected", zap.Error(err))
+			}
+		}),
+		nats.ReconnectHandler(func(nc *nats.Conn) {
+			logger.Info("NATS reconnected", zap.String("url", nc.ConnectedUrl()))
+		}),
+	)
+	if err != nil {
+		return nil, fmt.Errorf("failed to connect to NATS: %w", err)
+	}
+
+	// Get JetStream context
+	js, err := nc.JetStream()
+	if err != nil {
+		nc.Close()
+		return nil, fmt.Errorf("failed to get JetStream context: %w", err)
+	}
+
+	// Create stream if it doesn't exist
+	streamName := cfg.NATS.Stream
+	subject := cfg.Subscription.Topic
+	if subject == "" {
+		subject = "telegram.>"
+	}
+
+	streamConfig := &nats.StreamConfig{
+		Name:      streamName,
+		Subjects:  []string{subject},
+		Retention: nats.LimitsPolicy,
+		MaxAge:    24 * time.Hour,
+		Storage:   nats.FileStorage,
+		Replicas:  1,
+	}
+
+	_, err = js.AddStream(streamConfig)
+	if err != nil && err != nats.ErrStreamNameAlreadyInUse {
+		nc.Close()
+		return nil, fmt.Errorf("failed to create stream: %w", err)
+	}
+
+	if err == nil {
+		logger.Info("Created JetStream", zap.String("stream", streamName), zap.String("subject", subject))
+	}
+
+	return js, nil
+}