package bridge;
/**
 * Abstraction — the remote control.
 *
 * Key point: RemoteControl holds a Device (the bridge) and delegates
 * all actual work to it. It adds higher-level semantics on top:
 * "togglePower" instead of separate enable()/disable() calls.
 */
public class RemoteControl {
    protected Device device;  // THE BRIDGE
    public RemoteControl(Device device) {
        this.device = device;
        System.out.println("Remote paired with: " + device.getName());
    }
    // User action → device operation translation
    public void togglePower() {
        if (device.isEnabled()) {
            device.disable();
        } else {
            device.enable();
        }
    }
    public void volumeUp()   { device.setVolume(device.getVolume() + 10); }
    public void volumeDown() { device.setVolume(device.getVolume() - 10); }
    public void channelUp()   { device.setChannel(device.getChannel() + 1); }
    public void channelDown() { device.setChannel(device.getChannel() - 1); }
}