✨ 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.

pkg/di/init_manual.go

@@ -0,0 +1,60 @@
+package di
+
+import (
+	"caatsm/internal/adapter/parser"
+	"caatsm/internal/app"
+	"caatsm/internal/infra/config"
+	"caatsm/internal/infra/log"
+	"caatsm/internal/infra/nats"
+	"caatsm/internal/infra/postgres"
+	"errors"
+)
+
+// InitializeAppWithConfig wires dependencies using the provided config.
+func InitializeAppWithConfig(cfg *config.Config) (*app.MessageProcessor, *nats.Consumer, error) {
+	if cfg == nil {
+		return nil, nil, errors.New("config is required")
+	}
+
+	logger, err := log.ProvideLogger(cfg)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	pool, err := postgres.ProvideDB(cfg)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	repo, err := postgres.ProvideRepository(pool, logger)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	conn, err := nats.ProvideNATSConn(cfg, logger)
+	{
+		if err != nil {
+			return nil, nil, err
+		}
+	}
+
+	js, err := nats.ProvideJetStream(conn, cfg, logger)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	publisher, err := nats.ProvidePublisher(js, cfg, logger)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	messageParser := parser.ProvideParser()
+	processor := app.NewMessageProcessor(messageParser, repo, publisher, logger)
+
+	consumer, err := nats.ProvideConsumer(conn, js, processor, cfg, logger)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	return processor, consumer, nil
+}