package org.jboss.resteasy.test.providers.sse;

import org.hamcrest.CoreMatchers;
import org.hamcrest.MatcherAssert;
import org.jboss.arquillian.container.test.api.Deployment;
import org.jboss.arquillian.container.test.api.RunAsClient;
import org.jboss.arquillian.junit.Arquillian;
import org.jboss.logging.Logger;
import org.jboss.resteasy.test.providers.sse.resource.SseSmokeMessageBodyWriter;
import org.jboss.resteasy.test.providers.sse.resource.SseSmokeResource;
import org.jboss.resteasy.test.providers.sse.resource.SseSmokeUser;
import org.jboss.resteasy.utils.PortProviderUtil;
import org.jboss.resteasy.utils.TestUtil;
import org.jboss.shrinkwrap.api.Archive;
import org.jboss.shrinkwrap.api.spec.WebArchive;
import org.junit.After;
import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;

import javax.ws.rs.client.Client;
import javax.ws.rs.client.ClientBuilder;
import javax.ws.rs.client.WebTarget;
import javax.ws.rs.sse.SseEventSource;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;

@RunWith(Arquillian.class)
@RunAsClient
public class SseSmokeTest {
   private static final Logger logger = Logger.getLogger(SseSmokeTest.class);
   static Client client;

   @Deployment
   public static Archive<?> deploy() {
      WebArchive war = TestUtil.prepareArchive(SseSmokeTest.class.getSimpleName());
      return TestUtil.finishContainerPrepare(war, null, SseSmokeMessageBodyWriter.class, SseSmokeUser.class,
               SseSmokeResource.class);
   }

   @Before
   public void init() {
      client = ClientBuilder.newBuilder().build();
   }

   @After
   public void after() throws Exception {
      client.close();
   }

   private String generateURL(String path) {
      return PortProviderUtil.generateURL(path, SseSmokeTest.class.getSimpleName());
   }

   /**
    * @tpTestDetails REST resource with SSE endpoint. Event is sent to the client.
    * @tpInfo RESTEASY-1680
    * @tpSince RESTEasy 3.5.0
    */
   @Test
   public void testSmoke() throws Exception {
      final List<String> results = new ArrayList<String>();
      WebTarget target = client.target(generateURL("/sse/events"));
      SseEventSource msgEventSource = SseEventSource.target(target).build();

      try (SseEventSource eventSource = msgEventSource) {
         CountDownLatch countDownLatch = new CountDownLatch(1);
         eventSource.register(event -> {
            countDownLatch.countDown();
            results.add(event.readData(String.class));
         }, e -> {
               throw new RuntimeException(e);
            });
         eventSource.open();
         boolean result = countDownLatch.await(30, TimeUnit.SECONDS);
         Assert.assertTrue("Waiting for event to be delivered has timed out.", result);
      }
      Assert.assertEquals("One message was expected.", 1, results.size());
      MatcherAssert.assertThat("The message doesn't have expected content.","Zeytin;zeytin@resteasy.org",
            CoreMatchers.is(CoreMatchers.equalTo(results.get(0))));
   }
}
