✨ Enhance logging configuration by introducing file output options and rotation settings in config.dev.toml. Update logger implementation to support multiple output streams, including file logging with rotation using lumberjack. Improve error handling and logging across various components, ensuring consistent logging practices. Update .gitignore to include log files and compressed logs. Add new Go module dependency for lumberjack.

internal/infra/nats/jetstream.go

@@ -30,6 +30,12 @@ func ProvideNATSConn(cfg *config.Config, logger *zap.Logger) (*nats.Conn, error)
 		}),
 	)
 	if err != nil {
+		logger.Error("failed to connect to NATS",
+			zap.String("url", cfg.NATS.URL),
+			zap.Duration("timeout", cfg.Timeouts.Server),
+			zap.Duration("reconnect_wait", cfg.Timeouts.ReconnectWait),
+			zap.Error(err),
+		)
 		return nil, fmt.Errorf("failed to connect to NATS: %w", err)
 	}
 
@@ -41,6 +47,10 @@ func ProvideJetStream(nc *nats.Conn, cfg *config.Config, logger *zap.Logger) (na
 	// Get JetStream context
 	js, err := nc.JetStream()
 	if err != nil {
+		logger.Error("failed to get JetStream context",
+			zap.String("url", cfg.NATS.URL),
+			zap.Error(err),
+		)
 		nc.Close()
 		return nil, fmt.Errorf("failed to get JetStream context: %w", err)
 	}
@@ -67,6 +77,11 @@ func EnsureStream(js nats.JetStreamContext, cfg *config.Config, logger *zap.Logg
 
 	streamSubjects := dedupeSubjects([]string{consumerSubject, publisherSubject})
 	if len(streamSubjects) == 0 {
+		logger.Error("no subjects configured for JetStream stream",
+			zap.String("stream", streamName),
+			zap.String("consumer_subject", consumerSubject),
+			zap.String("publisher_subject", publisherSubject),
+		)
 		return fmt.Errorf("no subjects configured for JetStream stream %s", streamName)
 	}
 
@@ -101,6 +116,11 @@ func EnsureStream(js nats.JetStreamContext, cfg *config.Config, logger *zap.Logg
 		if errors.Is(err, nats.ErrStreamNotFound) {
 			if shouldBootstrapStream() {
 				if _, err = js.AddStream(streamConfig); err != nil {
+					logger.Error("failed to create stream",
+						zap.String("stream", streamName),
+						zap.Strings("subjects", streamSubjects),
+						zap.Error(err),
+					)
 					return fmt.Errorf("failed to create stream %s: %w", streamName, err)
 				}
 				logger.Info("Created JetStream stream",
@@ -109,8 +129,16 @@ func EnsureStream(js nats.JetStreamContext, cfg *config.Config, logger *zap.Logg
 				)
 				return nil
 			}
+			logger.Error("stream not found and auto-creation disabled",
+				zap.String("stream", streamName),
+				zap.Strings("expected_subjects", streamSubjects),
+			)
 			return fmt.Errorf("stream %s not found and auto-creation disabled", streamName)
 		}
+		logger.Error("failed to fetch stream info",
+			zap.String("stream", streamName),
+			zap.Error(err),
+		)
 		return fmt.Errorf("failed to fetch stream info for %s: %w", streamName, err)
 	}