Function New

internal/config/config.go:106–152

New creates a new configuration with defaults from environment variables

()

// New creates a new configuration with defaults from environment variables
func New() *Config {
	// Determine performance mode from environment
	modeStr := os.Getenv("MODE")
	if modeStr == "" {
		modeStr = "normal" // Default to normal mode
	}
	
	mode := PerformanceMode(modeStr)
	modeConfigs := GetModeConfigs()
	
	// Validate mode
	modeConfig, exists := modeConfigs[mode]
	if !exists {
		log.Printf("⚠️  Invalid mode '%s', using 'normal' mode", modeStr)
		mode = ModeNormal
		modeConfig = modeConfigs[ModeNormal]
	}
	
	log.Printf("🚀 %s: %s", modeConfig.Name, getModeDescription(mode))
	
	config := &Config{
		// Set defaults
		AWSRegion:             shared.DefaultAWSRegion,
		STUNServer:            shared.DefaultSTUNServer,
		SOCKS5Port:            shared.DefaultSOCKS5Port,
		LambdaResponseTimeout: shared.DefaultLambdaResponseTimeout,
		NATHolePunchTimeout:   shared.DefaultNATHolePunchTimeout,
		
		// Apply mode configuration
		Mode:       mode,
		ModeConfig: modeConfig,
		Rotation: RotationConfig{
			OverlapWindow: modeConfig.OverlapWindow,
			DrainTimeout:  modeConfig.DrainTimeout,
			SessionTTL:    modeConfig.SessionTTL,
		},
	}

	// Override with environment variables
	config.S3BucketName = os.Getenv("AWS_S3_BUCKET")

	if region := os.Getenv("AWS_REGION"); region != "" {
		config.AWSRegion = region
	}

	return config
}

// getModeDescription returns a description for the given mode
func getModeDescription(mode PerformanceMode) string {