/**
 * 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.usecases;

import java.io.File;
import java.io.IOException;
import java.net.URI;
import java.util.List;

import org.apache.activemq.JmsMultipleBrokersTestSupport;
import org.apache.activemq.broker.BrokerService;
import org.apache.activemq.broker.TransportConnector;
import org.apache.activemq.network.DiscoveryNetworkConnector;
import org.apache.activemq.network.NetworkConnector;
import org.apache.activemq.store.kahadb.KahaDBStore;
import org.apache.activemq.transport.stomp.Stomp;
import org.apache.activemq.transport.stomp.StompConnection;
import org.apache.activemq.transport.stomp.StompFrame;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class ThreeBrokerStompTemporaryQueueTest extends JmsMultipleBrokersTestSupport {

   private static final Logger LOG = LoggerFactory.getLogger(ThreeBrokerStompTemporaryQueueTest.class);
   private StompConnection stompConnection;

   @Override
   protected NetworkConnector bridgeBrokers(BrokerService localBroker,
                                            BrokerService remoteBroker,
                                            boolean dynamicOnly,
                                            int networkTTL,
                                            boolean conduit,
                                            boolean failover) throws Exception {
      List<TransportConnector> transportConnectors = remoteBroker.getTransportConnectors();
      URI remoteURI;
      if (!transportConnectors.isEmpty()) {
         remoteURI = transportConnectors.get(0).getConnectUri();
         NetworkConnector connector = new DiscoveryNetworkConnector(new URI("static:" + remoteURI));
         connector.setName(localBroker.getBrokerName() + remoteBroker.getBrokerName());
         localBroker.addNetworkConnector(connector);
         maxSetupTime = 2000;
         return connector;
      }
      else {
         throw new Exception("Remote broker has no registered connectors.");
      }
   }

   public void testStompTemporaryQueue() throws Exception {
      // Setup broker networks
      bridgeAndConfigureBrokers("BrokerA", "BrokerB");
      bridgeAndConfigureBrokers("BrokerA", "BrokerC");
      bridgeAndConfigureBrokers("BrokerB", "BrokerA");
      bridgeAndConfigureBrokers("BrokerB", "BrokerC");
      bridgeAndConfigureBrokers("BrokerC", "BrokerA");
      bridgeAndConfigureBrokers("BrokerC", "BrokerB");

      startAllBrokers();
      waitForBridgeFormation();

      Thread.sleep(1000);

      stompConnection = new StompConnection();
      stompConnection.open("localhost", 61614);
      // Creating a temp queue
      stompConnection.sendFrame("CONNECT\n" + "login:system\n" + "passcode:manager\n\n" + Stomp.NULL);

      StompFrame frame = stompConnection.receive();
      assertTrue(frame.toString().startsWith("CONNECTED"));

      stompConnection.subscribe("/temp-queue/meaningless", "auto");
      stompConnection.send("/temp-queue/meaningless", "Hello World");

      frame = stompConnection.receive(3000);
      assertEquals("Hello World", frame.getBody());

      Thread.sleep(1000);

      assertEquals("Destination", 1, brokers.get("BrokerA").broker.getAdminView().getTemporaryQueues().length);
      assertEquals("Destination", 1, brokers.get("BrokerB").broker.getAdminView().getTemporaryQueues().length);
      assertEquals("Destination", 1, brokers.get("BrokerC").broker.getAdminView().getTemporaryQueues().length);

      int advisoryTopicsForTempQueues;
      advisoryTopicsForTempQueues = countTopicsByName("BrokerA", "ActiveMQ.Advisory.Consumer.Queue.ID");
      assertEquals("Advisory topic should be present", 1, advisoryTopicsForTempQueues);

      advisoryTopicsForTempQueues = countTopicsByName("BrokerB", "ActiveMQ.Advisory.Consumer.Queue.ID");
      assertEquals("Advisory topic should be present", 1, advisoryTopicsForTempQueues);

      advisoryTopicsForTempQueues = countTopicsByName("BrokerC", "ActiveMQ.Advisory.Consumer.Queue.ID");
      assertEquals("Advisory topic should be present", 1, advisoryTopicsForTempQueues);

      stompConnection.disconnect();

      Thread.sleep(1000);

      advisoryTopicsForTempQueues = countTopicsByName("BrokerA", "ActiveMQ.Advisory.Consumer.Queue.ID");
      assertEquals("Advisory topic should have been deleted", 0, advisoryTopicsForTempQueues);
      advisoryTopicsForTempQueues = countTopicsByName("BrokerB", "ActiveMQ.Advisory.Consumer.Queue.ID");
      assertEquals("Advisory topic should have been deleted", 0, advisoryTopicsForTempQueues);
      advisoryTopicsForTempQueues = countTopicsByName("BrokerC", "ActiveMQ.Advisory.Consumer.Queue.ID");
      assertEquals("Advisory topic should have been deleted", 0, advisoryTopicsForTempQueues);

      LOG.info("Restarting brokerA");
      BrokerItem brokerItem = brokers.remove("BrokerA");
      if (brokerItem != null) {
         brokerItem.destroy();
      }

      BrokerService restartedBroker = createAndConfigureBroker(new URI("broker:(tcp://localhost:61616,stomp://localhost:61613)/BrokerA"));
      bridgeAndConfigureBrokers("BrokerA", "BrokerB");
      bridgeAndConfigureBrokers("BrokerA", "BrokerC");
      restartedBroker.start();
      waitForBridgeFormation();

      Thread.sleep(3000);

      assertEquals("Destination", 0, brokers.get("BrokerA").broker.getAdminView().getTemporaryQueues().length);
      assertEquals("Destination", 0, brokers.get("BrokerB").broker.getAdminView().getTemporaryQueues().length);
      assertEquals("Destination", 0, brokers.get("BrokerC").broker.getAdminView().getTemporaryQueues().length);

      advisoryTopicsForTempQueues = countTopicsByName("BrokerA", "ActiveMQ.Advisory.Consumer.Queue.ID");
      assertEquals("Advisory topic should have been deleted", 0, advisoryTopicsForTempQueues);
      advisoryTopicsForTempQueues = countTopicsByName("BrokerB", "ActiveMQ.Advisory.Consumer.Queue.ID");
      assertEquals("Advisory topic should have been deleted", 0, advisoryTopicsForTempQueues);
      advisoryTopicsForTempQueues = countTopicsByName("BrokerC", "ActiveMQ.Advisory.Consumer.Queue.ID");
      assertEquals("Advisory topic should have been deleted", 0, advisoryTopicsForTempQueues);
   }

   private int countTopicsByName(String broker, String name) throws Exception {
      int advisoryTopicsForTempQueues = 0;
      for (int i = 0; i < brokers.get(broker).broker.getAdminView().getTopics().length; i++) {
         if (brokers.get(broker).broker.getAdminView().getTopics()[i].toString().contains(name)) {
            advisoryTopicsForTempQueues++;
         }
      }
      return advisoryTopicsForTempQueues;
   }

   private void bridgeAndConfigureBrokers(String local, String remote) throws Exception {
      NetworkConnector bridge = bridgeBrokers(local, remote);
      assertNotNull(bridge);
   }

   @Override
   public void setUp() throws Exception {
      super.setAutoFail(true);
      super.setUp();
      String options = new String("?deleteAllMessagesOnStartup=true");
      createAndConfigureBroker(new URI("broker:(tcp://localhost:61616,stomp://localhost:61613)/BrokerA" + options));
      createAndConfigureBroker(new URI("broker:(tcp://localhost:61617,stomp://localhost:61614)/BrokerB" + options));
      createAndConfigureBroker(new URI("broker:(tcp://localhost:61618,stomp://localhost:61615)/BrokerC" + options));
   }

   private BrokerService createAndConfigureBroker(URI uri) throws Exception {
      BrokerService broker = createBroker(uri);
      configurePersistenceAdapter(broker);
      return broker;
   }

   protected void configurePersistenceAdapter(BrokerService broker) throws IOException {
      File dataFileDir = new File("target/test-amq-data/kahadb/" + broker.getBrokerName());
      KahaDBStore kaha = new KahaDBStore();
      kaha.setDirectory(dataFileDir);
      broker.setPersistenceAdapter(kaha);
   }
}
