//
//  ========================================================================
//  Copyright (c) 1995-2020 Mort Bay Consulting Pty Ltd and others.
//  ------------------------------------------------------------------------
//  All rights reserved. This program and the accompanying materials
//  are made available under the terms of the Eclipse Public License v1.0
//  and Apache License v2.0 which accompanies this distribution.
//
//      The Eclipse Public License is available at
//      http://www.eclipse.org/legal/epl-v10.html
//
//      The Apache License v2.0 is available at
//      http://www.opensource.org/licenses/apache2.0.php
//
//  You may elect to redistribute this code under either of these licenses.
//  ========================================================================
//

package org.eclipse.jetty.websocket.server;

import java.net.URI;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.Future;
import java.util.concurrent.TimeUnit;

import org.eclipse.jetty.server.Server;
import org.eclipse.jetty.server.ServerConnector;
import org.eclipse.jetty.websocket.api.RemoteEndpoint;
import org.eclipse.jetty.websocket.api.Session;
import org.eclipse.jetty.websocket.api.WebSocketAdapter;
import org.eclipse.jetty.websocket.client.WebSocketClient;
import org.eclipse.jetty.websocket.server.helper.EchoSocket;
import org.eclipse.jetty.websocket.servlet.WebSocketServletFactory;
import org.junit.jupiter.api.AfterEach;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;

import static org.junit.jupiter.api.Assertions.assertTrue;

public class BatchModeTest
{
    private Server server;
    private ServerConnector connector;
    private WebSocketClient client;

    @BeforeEach
    public void prepare() throws Exception
    {
        server = new Server();
        connector = new ServerConnector(server);
        server.addConnector(connector);

        WebSocketHandler handler = new WebSocketHandler()
        {
            @Override
            public void configure(WebSocketServletFactory factory)
            {
                factory.register(EchoSocket.class);
            }
        };

        server.setHandler(handler);

        client = new WebSocketClient();
        server.addBean(client, true);

        server.start();
    }

    @AfterEach
    public void dispose() throws Exception
    {
        server.stop();
    }

    @Test
    public void testBatchModeAuto() throws Exception
    {
        URI uri = URI.create("ws://localhost:" + connector.getLocalPort());

        final CountDownLatch latch = new CountDownLatch(1);
        WebSocketAdapter adapter = new WebSocketAdapter()
        {
            @Override
            public void onWebSocketText(String message)
            {
                latch.countDown();
            }
        };
        try (Session session = client.connect(adapter, uri).get())
        {
            RemoteEndpoint remote = session.getRemote();

            Future<Void> future = remote.sendStringByFuture("batch_mode_on");
            // The write is aggregated and therefore completes immediately.
            future.get(1, TimeUnit.MICROSECONDS);

            // Wait for the echo.
            assertTrue(latch.await(5, TimeUnit.SECONDS));
        }
    }

    // TODO: currently not possible to configure the Jetty WebSocket Session with the batch mode.
}
