/**
    * 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.admincentral.findbar.operation;
  
  import static info.magnolia.periscope.operation.OperationResult.successfulResult;
  
  import info.magnolia.admincentral.ViewportLayout;
  import info.magnolia.admincentral.findbar.PeriscopeAppDetailCreator;
  import info.magnolia.admincentral.findbar.PeriscopeAppDetailCreator.AppDetail;
  import info.magnolia.periscope.operation.Operation;
  import info.magnolia.periscope.operation.OperationResult;
  import info.magnolia.periscope.operation.request.InternalNavigationRequest;
  import info.magnolia.ui.api.ioc.AdmincentralScoped;
  import info.magnolia.ui.api.location.LocationController;
  import info.magnolia.ui.contentapp.detail.DetailLocation;
  import info.magnolia.ui.contentapp.detail.DetailView;
  
  import java.util.Optional;
  
  import javax.inject.Inject;
  
  import org.apache.commons.lang3.StringUtils;
  
  /**
   * Internal navigator to open some path within some workspace (that is, in a corresponding app).
   */
  @AdmincentralScoped
  public class InternalNavigationOperation implements Operation<InternalNavigationRequest> {
  
      private final LocationController locationController;
      private final PeriscopeAppDetailCreator periscopeAppDetailCreator;
      private final ViewportLayout viewportLayout;
  
      @Inject
      public InternalNavigationOperation(LocationController locationController, PeriscopeAppDetailCreator periscopeAppDetailCreator, ViewportLayout viewportLayout) {
          this.locationController = locationController;
          this.periscopeAppDetailCreator = periscopeAppDetailCreator;
          this.viewportLayout = viewportLayout;
      }
  
      @Override
      public OperationResult execute(InternalNavigationRequest request) {
          Optional<AppDetail> appDetailOptional = periscopeAppDetailCreator.createAppDetailForWorkspace(request.getWorkspace());
  
          if (!appDetailOptional.isPresent()) {
              return new OperationResult(false, String.format("App configuration cannot be found for workspace: '%s'.", request.getWorkspace()));
          }
  
          // If we know the appName, we simply delegate to the particular app.
          if (StringUtils.isNotBlank(request.getAppName())) {
              DetailLocation location = new DetailLocation(request.getAppName(), appDetailOptional.get().getSubAppName(), DetailView.ViewType.EDIT, request.getPath(), null);
              locationController.goTo(location);
              return successfulResult();
          }
  
  
          AppDetail appDetail = appDetailOptional.get();
          DetailLocation location = new DetailLocation(appDetail.getAppName(), appDetail.getSubAppName(), DetailView.ViewType.EDIT, request.getPath(), null);
  
          // if target location is already "open", simply show app (and hide find bar)
          if (location.equals(locationController.getWhere())) {
              viewportLayout.showApp(locationController.getWhere().getAppName());
              return successfulResult();
          }
  
          // Navigate to any internal app with given location path and workspace/app-name.
          locationController.goTo(location);
          return successfulResult();
     }
 }