package tunnel

type Connection struct {
	RX <-chan *DataFrame
	TX chan<- *DataFrame
	ID ID
}

func (c *Connection) Read(p []byte) (int, error) {
	df, ok := <-c.RX
	if !ok {
		return 0, c.Close()
	}
	return df.Read(p)
}

func (c *Connection) Write(p []byte) (int, error) {
	defer recover()
	df := &DataFrame{
		ID:   c.ID,
		Type: TypeNormal,
	}
	n, err := df.Write(p)
	if err != nil {
		return 0, err
	}
	c.TX <- df
	return n, nil
}

func (c *Connection) Close() error {
	defer close(c.TX)
	return nil
}