/**
    * This file Copyright (c) 2018 Magnolia International
    * Ltd.  (http://www.magnolia-cms.com). All rights reserved.
    *
    *
    * This file is dual-licensed under both the Magnolia
    * Network Agreement and the GNU General Public License.
    * You may elect to use one or the other of these licenses.
    *
   * This file is distributed in the hope that it will be
   * useful, but AS-IS and WITHOUT ANY WARRANTY; without even the
   * implied warranty of MERCHANTABILITY or FITNESS FOR A
   * PARTICULAR PURPOSE, TITLE, or NONINFRINGEMENT.
   * Redistribution, except as permitted by whichever of the GPL
   * or MNA you select, is prohibited.
   *
   * 1. For the GPL license (GPL), you can redistribute and/or
   * modify this file under the terms of the GNU General
   * Public License, Version 3, as published by the Free Software
   * Foundation.  You should have received a copy of the GNU
   * General Public License, Version 3 along with this program;
   * if not, write to the Free Software Foundation, Inc., 51
   * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
   *
   * 2. For the Magnolia Network Agreement (MNA), this file
   * and the accompanying materials are made available under the
   * terms of the MNA which accompanies this distribution, and
   * is available at http://www.magnolia-cms.com/mna.html
   *
   * Any modifications to this file must keep this entire header
   * intact.
   *
   */
  package info.magnolia.ui.contentapp.browser;
  
  import info.magnolia.ui.api.action.ActionExecutionException;
  import info.magnolia.ui.api.action.ActionExecutor;
  import info.magnolia.ui.api.availability.AvailabilityChecker;
  import info.magnolia.ui.api.availability.AvailabilityDefinition;
  import info.magnolia.ui.api.ioc.UiContextScoped;
  import info.magnolia.ui.api.message.Message;
  import info.magnolia.ui.api.message.MessageType;
  import info.magnolia.ui.framework.message.MessagesManager;
  
  import java.util.function.Predicate;
  import java.util.stream.Collectors;
  import java.util.stream.Stream;
  
  import javax.inject.Inject;
  
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  /**
   * Action execution service. Hosts an instance of an {@link ActionExecutor action executor} and
   * delegates the execution to it. Provides the availability filters for the values
   * based on the {@link AvailabilityChecker availability checker} component.
   */
  @UiContextScoped
  public class ActionExecutionService {
  
      private static final Logger log = LoggerFactory.getLogger(ActionExecutionService.class);
  
      private final ActionExecutor actionExecutor;
      private final MessagesManager messagesManager;
      private final AvailabilityChecker availabilityChecker;
  
      @Inject
      public ActionExecutionService(
              ActionExecutor actionExecutor,
              MessagesManager messagesManager,
              AvailabilityChecker availabilityChecker) {
          this.actionExecutor = actionExecutor;
          this.messagesManager = messagesManager;
          this.availabilityChecker = availabilityChecker;
      }
  
      public <T> Predicate<AvailabilityDefinition> getAvailabilityFilter(Stream<T> selectedItems) {
          return actionDefinition -> availabilityChecker.isAvailable(actionDefinition, selectedItems.collect(Collectors.toList()));
      }
  
      public void executeAction(String actionName, Object... parameters) {
          try {
              actionExecutor.execute(actionName, parameters);
          } catch (ActionExecutionException e) {
              Message error = new Message(MessageType.ERROR, "An error occurred while executing an action.", e.getMessage());
              log.error("An error occurred while executing action [{}]", actionName, e);
              messagesManager.sendLocalMessage(error);
          }
      }
  }