Add DEBUG log_level.

main.go

@@ -156,6 +156,7 @@ type Config struct {
 	OpenDTUPassword string `json:"opendtu_password"`
 	TimescaleDB     bool   `json:"timescaledb"`
 	TZ              string `json:"tz"`
+	LogLevel        string `json:"log_level"`
 }
 
 var logger = slog.New(slog.NewJSONHandler(os.Stdout, nil))
@@ -240,6 +241,30 @@ func loadConfig() Config {
 	return config
 }
 
+// Helper function to map environment variable to slog.Level
+func getLogLevel(defaultLevel slog.Level) slog.Level {
+	logLevelStr := config.LogLevel
+	switch logLevelStr {
+	case "DEBUG":
+		return slog.LevelDebug
+	case "INFO":
+		return slog.LevelInfo
+	case "WARN":
+		return slog.LevelWarn
+	case "ERROR":
+		return slog.LevelError
+	default:
+		return defaultLevel
+	}
+}
+
+// Function to create a new logger with a specified log level
+func createLoggerWithLevel(level slog.Level) *slog.Logger {
+	return slog.New(slog.NewJSONHandler(os.Stdout, &slog.HandlerOptions{
+		Level: level,
+	}))
+}
+
 // Main program
 func main() {
 	// Initial logger setup
@@ -248,6 +273,10 @@ func main() {
 	// Load the configuration
 	config := loadConfig()
 
+	// Set the logLevel
+	logLevel := getLogLevel(slog.LevelInfo) // Default to info level
+	logger = createLoggerWithLevel(logLevel)
+
 	dbConnStr := config.DB
 	// Connect to PostgreSQL
 	db, err := sql.Open("postgres", dbConnStr)
@@ -262,6 +291,8 @@ func main() {
 	// Create WebSocket URL from config variable
 	wsURL := "ws://" + config.OpenDTUAddress + "/livedata"
 
+	logger.Debug(wsURL)
+
 	// Create headers with optional Basic Auth
 	headers := http.Header{}
 	if config.OpenDTUAuth {