/*
 * Copyright 2014-2018 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package sample;

import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.ExecutionException;

import org.junit.ClassRule;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.ExpectedException;
import org.junit.runner.RunWith;
import org.testcontainers.containers.GenericContainer;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.boot.test.context.SpringBootTest.WebEnvironment;
import org.springframework.boot.test.util.TestPropertyValues;
import org.springframework.context.ApplicationContextInitializer;
import org.springframework.context.ConfigurableApplicationContext;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringRunner;
import org.springframework.util.concurrent.ListenableFuture;
import org.springframework.web.socket.TextMessage;
import org.springframework.web.socket.WebSocketHandler;
import org.springframework.web.socket.WebSocketSession;
import org.springframework.web.socket.client.standard.StandardWebSocketClient;
import org.springframework.web.socket.sockjs.client.RestTemplateXhrTransport;
import org.springframework.web.socket.sockjs.client.SockJsClient;
import org.springframework.web.socket.sockjs.client.Transport;
import org.springframework.web.socket.sockjs.client.WebSocketTransport;

/**
 * @author Rob Winch
 * @author Vedran Pavic
 */
@RunWith(SpringRunner.class)
@SpringBootTest(classes = Application.class, webEnvironment = WebEnvironment.RANDOM_PORT)
@ContextConfiguration(initializers = ApplicationTests.Initializer.class)
public class ApplicationTests {

	private static final String DOCKER_IMAGE = "redis:4.0.6";

	@ClassRule
	public static GenericContainer redisContainer = new GenericContainer(DOCKER_IMAGE)
			.withExposedPorts(6379);

	@Rule
	public final ExpectedException thrown = ExpectedException.none();

	@Value("${local.server.port}")
	private String port;

	@Autowired
	private WebSocketHandler webSocketHandler;

	@Test
	public void run() throws Exception {
		List<Transport> transports = new ArrayList<>(2);
		transports.add(new WebSocketTransport(new StandardWebSocketClient()));
		transports.add(new RestTemplateXhrTransport());

		SockJsClient sockJsClient = new SockJsClient(transports);
		ListenableFuture<WebSocketSession> wsSession = sockJsClient.doHandshake(
				this.webSocketHandler, "ws://localhost:" + this.port + "/sockjs");

		this.thrown.expect(ExecutionException.class);
		wsSession.get().sendMessage(new TextMessage("a"));
	}

	static class Initializer
			implements ApplicationContextInitializer<ConfigurableApplicationContext> {

		@Override
		public void initialize(
				ConfigurableApplicationContext configurableApplicationContext) {
			TestPropertyValues
					.of("spring.redis.host=" + redisContainer.getContainerIpAddress(),
							"spring.redis.port=" + redisContainer.getFirstMappedPort())
					.applyTo(configurableApplicationContext.getEnvironment());
		}

	}

}