package jmri.jmrix.easydcc;

import java.util.Vector;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * Stands in for the EasyDccTrafficController class
 *
 * @author Bob Jacobsen Copyright 2006
 */
public class EasyDccTrafficControlScaffold extends EasyDccTrafficController {

    public EasyDccTrafficControlScaffold(EasyDccSystemConnectionMemo memo) {
        super(memo);
    }

    // override some EasyDccTrafficController methods for test purposes
    @Override
    public boolean status() {
        return true;
    }

    /**
     * record messages sent, provide access for making sure they are OK
     */
    public Vector<EasyDccMessage> outbound = new Vector<EasyDccMessage>();  // public OK here, so long as this is a test class

    @Override
    public void sendEasyDccMessage(EasyDccMessage m, EasyDccListener reply) {
        if (log.isDebugEnabled()) {
            log.debug("sendEasyDccMessage [{}]", m);
        }
        // save a copy
        outbound.addElement(m);
        // we don't return an echo so that the processing before the echo can be
        // separately tested
        lastSender = reply;
    }

    jmri.jmrix.easydcc.EasyDccListener lastSender;

    // test control member functions

    /**
     * forward a message to the listeners, e.g. test receipt
     */
    protected void sendTestMessage(EasyDccMessage m) {
        // forward a test message to Listeners
        if (log.isDebugEnabled()) {
            log.debug("sendTestMessage    [{}]", m);
        }
        notifyMessage(m, null);
        return;
     }

    /**
     * forward a message to the listeners, e.g. test receipt
     */
    protected void sendTestMessage(EasyDccMessage m, EasyDccListener l) {
        // forward a test message to EasyDccListeners
        if (log.isDebugEnabled()) {
            log.debug("sendTestMessage    [{}]", m);
        }
        notifyMessage(m, l);
        return;
    }

    protected void sendTestReply(EasyDccReply m) {
        // forward a test message to Listeners
        notifyReply(m, lastSender);
        return;
    }

    /*
     * Check number of listeners, used for testing dispose()
     */
    public int numListeners() {
        return cmdListeners.size();
    }

    private static final Logger log = LoggerFactory.getLogger(EasyDccTrafficControlScaffold.class);

}