package ch.psi.mxsc;

import static ch.psi.mxsc.Controller.NUMBER_OF_PUCKS;
import ch.psi.pshell.device.Device;
import ch.psi.pshell.device.DeviceListener;
import ch.psi.pshell.utils.State;
import java.util.List;

/**
 *
 */
public class EseraDetection implements AutoCloseable{
    final Device device;

    public EseraDetection(Device device){  
        this.device = device;
        if (device!=null){
            device.addListener(listener);
        }        
    }
    
    
    DeviceListener listener = new DeviceListener(){
        @Override
        public void onStateChanged(Device device, State state, State former) {
            if (!state.isInitialized()){
                Controller.getInstance().clearPuckStates();
            }
        }

        @Override
        public void onValueChanged(Device device, Object value, Object former) {
            if ((value == null) || !(value instanceof List)){
                Controller.getInstance().clearPuckStates();
            } else {
                List l = (List)value;
                PuckState[] puckState = Controller.getInstance().getPuckStates();
                for (int i=0; i<NUMBER_OF_PUCKS; i++ ){
                    try{
                        List det = (List) l.get(i);
                        puckState[i].set((det.get(0).equals(0)) ? 1 : 0, (det.get(1).equals(0)) ? 1 : 0);
                    } catch (Exception ex){
                        puckState[i].clear();
                    }
                }
                Controller.getInstance().updateView();
            }
        }
    };
    
    @Override
    public void close() {
        if (device!=null){
            device.removeListener(listener);
        }
        Controller.getInstance().clearPuckStates();
    }
}