/**
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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 org.apache.activemq.bugs;

import org.apache.activemq.ActiveMQConnectionFactory;
import org.apache.activemq.broker.BrokerFactory;
import org.apache.activemq.broker.BrokerPlugin;
import org.apache.activemq.broker.BrokerService;
import org.apache.activemq.broker.region.DestinationInterceptor;
import org.apache.activemq.broker.region.virtual.VirtualDestination;
import org.apache.activemq.broker.region.virtual.VirtualDestinationInterceptor;
import org.apache.activemq.broker.region.virtual.VirtualTopic;
import org.apache.activemq.plugin.SubQueueSelectorCacheBrokerPlugin;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import javax.jms.Connection;
import javax.jms.Destination;
import javax.jms.JMSException;
import javax.jms.Message;
import javax.jms.MessageConsumer;
import javax.jms.MessageListener;
import javax.jms.MessageProducer;
import javax.jms.Queue;
import javax.jms.Session;
import javax.jms.TextMessage;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;

import static org.junit.Assert.assertEquals;

public class AMQ4899Test {

   protected static final Logger LOG = LoggerFactory.getLogger(AMQ4899Test.class);
   private static final String QUEUE_NAME = "AMQ4899TestQueue";
   private static final String CONSUMER_QUEUE = "Consumer.Orders.VirtualOrders." + QUEUE_NAME;
   private static final String PRODUCER_DESTINATION_NAME = "VirtualOrders." + QUEUE_NAME;

   private static final Integer MESSAGE_LIMIT = 20;
   public static final String CONSUMER_A_SELECTOR = "Order < " + 10;
   public static String CONSUMER_B_SELECTOR = "Order >= " + 10;
   private CountDownLatch consumersStarted = new CountDownLatch(2);
   private CountDownLatch consumerAtoConsumeCount = new CountDownLatch(10);
   private CountDownLatch consumerBtoConsumeCount = new CountDownLatch(10);

   private BrokerService broker;

   @Before
   public void setUp() {
      setupBroker("broker://()/localhost?");
   }

   @After
   public void tearDown() throws Exception {
      if (broker != null) {
         broker.stop();
         broker.waitUntilStopped();
      }
   }

   @Test(timeout = 60 * 1000)
   public void testVirtualTopicMultipleSelectors() throws Exception {
      ActiveMQConnectionFactory factory = new ActiveMQConnectionFactory("vm://localhost");
      Connection connection = factory.createConnection();
      connection.start();
      Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);

      Queue consumerQueue = session.createQueue(CONSUMER_QUEUE);

      MessageListener listenerA = new AMQ4899Listener("A", consumersStarted, consumerAtoConsumeCount);
      MessageConsumer consumerA = session.createConsumer(consumerQueue, CONSUMER_A_SELECTOR);
      consumerA.setMessageListener(listenerA);

      MessageListener listenerB = new AMQ4899Listener("B", consumersStarted, consumerBtoConsumeCount);
      MessageConsumer consumerB = session.createConsumer(consumerQueue, CONSUMER_B_SELECTOR);
      consumerB.setMessageListener(listenerB);

      consumersStarted.await(10, TimeUnit.SECONDS);
      assertEquals("Not all consumers started in time", 0, consumersStarted.getCount());

      Destination producerDestination = session.createTopic(PRODUCER_DESTINATION_NAME);
      MessageProducer producer = session.createProducer(producerDestination);
      int messageIndex = 0;
      for (int i = 0; i < MESSAGE_LIMIT; i++) {
         if (i == 3) {
            LOG.debug("Stopping consumerA");
            consumerA.close();
         }

         if (i == 14) {
            LOG.debug("Stopping consumer B");
            consumerB.close();
         }
         String messageText = "hello " + messageIndex++ + " sent at " + new java.util.Date().toString();
         TextMessage message = session.createTextMessage(messageText);
         message.setIntProperty("Order", i);
         LOG.debug("Sending message [{}]", messageText);
         producer.send(message);
         Thread.sleep(100);
      }
      Thread.sleep(1 * 1000);

      // restart consumerA
      LOG.debug("Restarting consumerA");
      consumerA = session.createConsumer(consumerQueue, CONSUMER_A_SELECTOR);
      consumerA.setMessageListener(listenerA);

      // restart consumerB
      LOG.debug("restarting consumerB");
      consumerB = session.createConsumer(consumerQueue, CONSUMER_B_SELECTOR);
      consumerB.setMessageListener(listenerB);

      consumerAtoConsumeCount.await(5, TimeUnit.SECONDS);
      consumerBtoConsumeCount.await(5, TimeUnit.SECONDS);

      LOG.debug("Unconsumed messages for consumerA {} consumerB {}", consumerAtoConsumeCount.getCount(), consumerBtoConsumeCount.getCount());

      assertEquals("Consumer A did not consume all messages", 0, consumerAtoConsumeCount.getCount());
      assertEquals("Consumer B did not consume all messages", 0, consumerBtoConsumeCount.getCount());

      connection.close();
   }

   /**
    * Setup broker with VirtualTopic configured
    */
   private void setupBroker(String uri) {
      try {
         broker = BrokerFactory.createBroker(uri);

         VirtualDestinationInterceptor interceptor = new VirtualDestinationInterceptor();
         VirtualTopic virtualTopic = new VirtualTopic();
         virtualTopic.setName("VirtualOrders.>");
         virtualTopic.setSelectorAware(true);
         VirtualDestination[] virtualDestinations = {virtualTopic};
         interceptor.setVirtualDestinations(virtualDestinations);
         broker.setDestinationInterceptors(new DestinationInterceptor[]{interceptor});

         SubQueueSelectorCacheBrokerPlugin subQueueSelectorCacheBrokerPlugin = new SubQueueSelectorCacheBrokerPlugin();
         BrokerPlugin[] updatedPlugins = {subQueueSelectorCacheBrokerPlugin};
         broker.setPlugins(updatedPlugins);

         broker.start();
         broker.waitUntilStarted();
      }
      catch (Exception e) {
         LOG.error("Failed creating broker", e);
      }
   }
}

class AMQ4899Listener implements MessageListener {

   Logger LOG = LoggerFactory.getLogger(AMQ4899Listener.class);
   CountDownLatch toConsume;
   String id;

   public AMQ4899Listener(String id, CountDownLatch started, CountDownLatch toConsume) {
      this.id = id;
      this.toConsume = toConsume;
      started.countDown();
   }

   @Override
   public void onMessage(Message message) {
      toConsume.countDown();
      try {
         if (message instanceof TextMessage) {
            TextMessage textMessage = (TextMessage) message;
            LOG.debug("Listener {} received [{}]", id, textMessage.getText());
         }
         else {
            LOG.error("Listener {} Expected a TextMessage, got {}", id, message.getClass().getCanonicalName());
         }
      }
      catch (JMSException e) {
         LOG.error("Unexpected JMSException in Listener " + id, e);
      }
   }
}
