package connection

// ConnectionInterface 连接接口（统一所有连接类型）
type ConnectionInterface interface {
	ID() string
	RemoteAddr() string
	LocalAddr() string
	Write(data []byte) error
	Close() error
}

// ToConnectionInterface 将各种连接类型转换为统一接口
func ToConnectionInterface(conn interface{}) ConnectionInterface {
	switch c := conn.(type) {
	case *Connection:
		return c
	case *UDPConnection:
		return c
	case *WebSocketConnection:
		return c
	case *UnixConnection:
		return c
	case *SerialConnection:
		return c
	default:
		return nil
	}
}