/*
 * Copyright 2012  Research Studios Austria Forschungsges.m.b.H.
 *
 *    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 won.bot.framework.eventbot.action.impl;

import won.bot.framework.eventbot.EventListenerContext;
import won.bot.framework.eventbot.action.BaseEventBotAction;
import won.bot.framework.eventbot.action.EventBotAction;
import won.bot.framework.eventbot.event.Event;
import won.bot.framework.eventbot.listener.EventListener;

import java.util.Date;

/**
 * Base action with capabilities for delegating to another action
 */
public abstract class AbstractDelegatingAction extends BaseEventBotAction
{

  private EventBotAction delegate;

  public AbstractDelegatingAction(final EventListenerContext eventListenerContext, final EventBotAction delegate) {
    super(eventListenerContext);
    this.delegate = delegate;
    assert delegate != null : "delegate must not be null";
  }

  protected void delegateImmediately(final Event event, EventListener executingListener) {
    getEventListenerContext().getExecutor().execute(delegate.getActionTask(event, executingListener));
  }

  protected void delegateDelayed(final Event event, long delayMillis, EventListener executingListener) {
    Date when = new Date(System.currentTimeMillis() + delayMillis);
    getEventListenerContext().getTaskScheduler().schedule(delegate.getActionTask(event, executingListener), when);
  }
}