/*
 * Copyright (C) 2015 Red Hat, Inc. and/or its affiliates.
 *
 * 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 org.jboss.errai.bus.server;

import java.util.Timer;
import java.util.TimerTask;

import org.jboss.errai.bus.client.api.AbstractAsyncTaskTest;
import org.jboss.errai.common.client.api.tasks.AsyncTask;
import org.jboss.errai.common.client.util.TimeUnit;
import org.jboss.errai.bus.server.async.scheduling.PooledExecutorService;

/**
 * Tests the RepeatingTimedTask implementation of AsyncTask.
 *
 * @author Jonathan Fuerth <jfuerth@gmail.com>
 */
public class RepeatingTimedTaskTest extends AbstractAsyncTaskTest {

  private PooledExecutorService service;
  private CountingRunnable latestRunnable;

  @Override
  protected AsyncTask getTaskUnderTest(CountingRunnable task) {
    latestRunnable = task;
    assertEquals("Hey, you can't pass me a used runnable!", 0, task.getRunCount());
    return service.scheduleRepeating(latestRunnable, TimeUnit.MILLISECONDS, 500, 500);
  }

  @Override
  protected void gwtSetUp() throws Exception {
    super.gwtSetUp();
    service = new PooledExecutorService(10);
  }

  @Override
  protected void gwtTearDown() throws Exception {
    service.shutdown();
    super.gwtTearDown();
  }

  @Override
  protected void runAfterTaskFinished(final Runnable r) {
    final Timer t = new Timer();
    TimerTask tt = new TimerTask() {

      @Override
      public void run() {
        if (latestRunnable.getRunCount() > 0) {
          service.shutdown();
          r.run();
        } else {
          t.schedule(this, 100);
        }
      }
    };
    t.schedule(tt, 120);
  }
}
