package io.v.v23.discovery;

import java.util.List;

import io.v.impl.google.lib.discovery.ScanHandler;
import io.v.v23.context.VContext;
import io.v.v23.security.BlessingPattern;

/**
 * An interface that exposes the Vanadium Discovery Api.
 */
public interface VDiscovery {
    interface DoneCallback {
        /**
         * Called when the advertisement or scan finishes.
         */
        void done();
    }

    interface UpdateCallback {
        /**
         * Called when a new update for a Service that matches the scan query.
         * @param update
         */
        void handleUpdate(Update update);
    }

    void advertise(VContext ctx, Service service, List<BlessingPattern> patterns, DoneCallback cb);

    void scan(VContext ctx, String query, UpdateCallback updateCb);
}