✨ Refactor application initialization to load configuration and enhance message processing. Introduce effective subscription topic handling and improve error management in NATS consumer. Update tests for publisher error handling and add new dependency injection method for app initialization.

cmd/main/main.go

@@ -1,6 +1,7 @@
 package main
 
 import (
+	"caatsm/internal/infra/config"
 	"caatsm/pkg/di"
 	"context"
 	"errors"
@@ -52,8 +53,21 @@ func setupApp() *cli.App {
 }
 
 func executeListen(c *cli.Context) error {
+	cfg, err := config.LoadConfig()
+	if err != nil {
+		return fmt.Errorf("failed to load config: %w", err)
+	}
+
+	if flagURL := c.String("nats"); flagURL != "" {
+		cfg.NATS.URL = flagURL
+	}
+
+	if flagTopic := c.String("topic"); flagTopic != "" {
+		cfg.Subscription.Topic = flagTopic
+	}
+
 	// Initialize dependencies using Wire
-	processor, consumer, err := di.InitializeApp()
+	processor, consumer, err := di.InitializeAppWithConfig(cfg)
 	if err != nil {
 		return fmt.Errorf("failed to initialize app: %w", err)
 	}