/*
 * JBoss, Home of Professional Open Source
 * Copyright 2011 Red Hat Inc. and/or its affiliates and other
 * contributors as indicated by the @author tags. All rights reserved.
 * See the copyright.txt in the distribution for a full listing of
 * individual contributors.
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */

package org.infinispan.lock.singlelock;

import org.infinispan.commands.tx.CommitCommand;
import org.infinispan.commands.tx.PrepareCommand;
import org.infinispan.config.Configuration;
import org.infinispan.context.impl.TxInvocationContext;
import org.infinispan.interceptors.base.CommandInterceptor;
import org.infinispan.test.MultipleCacheManagersTest;
import org.infinispan.transaction.lookup.DummyTransactionManagerLookup;
import org.infinispan.transaction.tm.DummyTransaction;

import javax.transaction.Status;
import java.util.concurrent.CountDownLatch;

import static org.testng.Assert.assertEquals;

/**
 * @author Mircea Markus
 * @since 5.1
 */
public class AbstractCrashTest extends MultipleCacheManagersTest {

   private DummyTransaction transaction;

   @Override
   protected void createCacheManagers() throws Throwable {
      final Configuration c = getDefaultClusteredConfig(Configuration.CacheMode.DIST_SYNC);
      c.fluent().transaction().transactionManagerLookup(new DummyTransactionManagerLookup());
      c.fluent().transaction().useSynchronization(true);//no recovery
      c.fluent().hash().rehashEnabled(false);
      c.fluent().hash().numOwners(3);
      createCluster(c, 3);
      waitForClusterToForm();
   }


   protected Object beginAndPrepareTx(final Object k, final int cacheIndex) {
      fork(new Runnable() {
         @Override
         public void run() {
            try {
               tm(1).begin();
               cache(1).put(k,"v");
               final DummyTransaction transaction = (DummyTransaction) tm(cacheIndex).getTransaction();
               transaction.notifyBeforeCompletion();
               transaction.runPrepare();
            } catch (Throwable e) {
               e.printStackTrace();
            }
         }
      }, false);
      return k;
   }

   protected Object beginAndCommitTx(final Object k, final int cacheIndex) {
      fork(new Runnable() {
         @Override
         public void run() {
            try {
               tm(cacheIndex).begin();
               cache(cacheIndex).put(k,"v");
               tm(cacheIndex).commit();
            } catch (Throwable e) {
               e.printStackTrace();
            }
         }
      }, false);
      return k;
   }

   public static class TxControlInterceptor extends CommandInterceptor {

      public CountDownLatch prepareProgress = new CountDownLatch(1);
      public CountDownLatch preparedReceived = new CountDownLatch(1);
      public CountDownLatch commitReceived = new CountDownLatch(1);
      public CountDownLatch commitProgress = new CountDownLatch(1);

      @Override
      public Object visitPrepareCommand(TxInvocationContext ctx, PrepareCommand command) throws Throwable {
         final Object result = super.visitPrepareCommand(ctx, command);
         preparedReceived.countDown();
         prepareProgress.await();
         return result;
      }

      @Override
      public Object visitCommitCommand(TxInvocationContext ctx, CommitCommand command) throws Throwable {
         commitReceived.countDown();
         commitProgress.await();
         return super.visitCommitCommand(ctx, command);

      }
   }

   //todo create JIRA for this use case
   public void testLockOwnerCrashesDuringPrepare() throws Exception {
      TxControlInterceptor c0ControlInterceptor = new TxControlInterceptor();
      TxControlInterceptor c2ControlInterceptor = new TxControlInterceptor();

      advancedCache(0).addInterceptor(c0ControlInterceptor, 1);
      advancedCache(2).addInterceptor(c2ControlInterceptor, 1);

      final Object k = getKeyForCache(2);
      fork(new Runnable() {
         @Override
         public void run() {
            try {
               tm(1).begin();
               cache(1).put(k, "v");
               transaction = (DummyTransaction) tm(1).getTransaction();
               transaction.notifyBeforeCompletion();
               transaction.runPrepare();
            } catch (Throwable e) {
               e.printStackTrace();
            }
         }
      }, false);


      c0ControlInterceptor.preparedReceived.await();
      c2ControlInterceptor.preparedReceived.await();

      killMember(2);
      cacheManagers.remove(2);
      assert caches().size() == 2;

      c0ControlInterceptor.prepareProgress.countDown();

      Thread.sleep(1000);
      log.trace("here is the end");

      tm(1).resume(transaction);
      transaction.commit();
      transaction.notifyAfterCompletion(Status.STATUS_COMMITTED);

      assertEquals(cache(0).get(k), "v");
      assertEquals(cache(1).get(k), "v");

      assertNotLocked(k);
      eventually(new Condition() {
         @Override
         public boolean isSatisfied() throws Exception {
            return checkTxCount(0, 0, 0) && checkTxCount(1, 0, 0);
         }
      });
   }

}