Method Plug

interfaces/04-interfaces/power/socket.go:28–39

Plug a device to draw power from the `Socket`

(device PowerDrawer)

// Plug a device to draw power from the `Socket`
func (s *Socket) Plug(device PowerDrawer) error {
	n := rand.Intn(50) + 1

	if s.power-n < 0 {
		return fmt.Errorf("socket is out of power for %dkW", n)
	}

	s.power -= n
	device.Draw(n)

	return nil
}