import java.io.IOException;

import org.restlet.Client;
import org.restlet.data.Form;
import org.restlet.data.Method;
import org.restlet.data.Protocol;
import org.restlet.data.Request;
import org.restlet.data.Response;

import edu.gvsu.cis.cs656.lab4.server.PresenceService;
import edu.gvsu.cis.cs656.lab4.server.RegistrationInfo;

public class PresenceServiceImpl implements PresenceService
{
    public static void main(String[] args)
    {
    }

    /**
     * Register a client with the presence service.
     * @param reg The information that is to be registered about a client.
     */
    public void register(RegistrationInfo reg) throws Exception
    {
    }

    /**
     * Unregister a client from the presence service.  Client must call this
     * method when it terminates execution.
     * @param userName The name of the user to be unregistered.
     */
    public void unregister(String userName) throws Exception
    {
    }

    /**
     * Lookup the registration information of another client.
     * @param name The name of the client that is to be located.
     * @return The RegistrationInfo info for the client, or null if
     * no such client was found.
     */
    public RegistrationInfo lookup(String name) throws Exception
    {
        return null;
    }

    /**
     * Sets the user's presence status.
     * @param name The name of the user whose status is to be set.
     * @param status true if user is available, false otherwise.
     */
    public void setStatus(String userName, boolean status) throws Exception
    {
    }

    /**
     * Determine all users who are currently registered in the system.
     * @return An array of RegistrationInfo objects - one for each client
     * present in the system.
     */
    public RegistrationInfo[] listRegisteredUsers() throws Exception
    {
        return null;
    }
}