Fix logging and database configuration

src/main.go

@@ -11,6 +11,7 @@ import (
 	"backend/ent"
 	"backend/src/internal/config"
 	"backend/src/internal/gateway"
+	"backend/src/internal/logging"
 	"backend/src/logic"
 
 	_ "github.com/lib/pq" // побочный импорт драйвера PostgreSQL
@@ -24,8 +25,8 @@ const (
 
 func main() {
 	var err error
-	logger := slog.Default()
-	// slog.SetLogLoggerLevel(slog.LevelDebug)
+	logger := logging.New("info")
+	slog.SetDefault(logger)
 
 	logger.Info(fmt.Sprintf("Starting %s version %s\n", AppName, AppVersion))
 
@@ -35,12 +36,32 @@ func main() {
 		return
 	}
 
+	// adjust logger according to LOG_LEVEL
+	level := logging.ParseLevel(cfg.LoggingConfig.Level)
+	if level != slog.LevelInfo {
+		logger.Info("Adjusting log level from env", "level", level.String())
+	}
+	logger = logging.New(cfg.LoggingConfig.Level)
+	slog.SetDefault(logger)
+	cfg.LoggingConfig.Instance = logger
+
 	// создаем контекст с отменой для управления жизненным циклом сервиса.
 	ctx, cancel := context.WithCancel(context.Background())
 	defer cancel()
 
 	// подключаемся к базе данных
-	dsn := config.GetDatabaseDSN(&cfg.DatabaseConfig)
+	dbURL, err := config.GetDatabaseURLForLogging(&cfg.DatabaseConfig)
+	if err != nil {
+		logger.Error("Failed getting database URL for logging", "error", err)
+		return
+	}
+	logger.Info("Connecting to database...", "url", dbURL)
+
+	dsn, err := config.GetDatabaseDSN(&cfg.DatabaseConfig)
+	if err != nil {
+		logger.Error("Failed getting database DSN", "error", err)
+		return
+	}
 	db, err := ent.Open(cfg.DatabaseConfig.Kind, dsn)
 	if err != nil {
 		logger.Error("Failed opening connection to postgres", "error", err)