/**
    * This file Copyright (c) 2015-2017 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.cache.browser.app.action;
  
  import info.magnolia.cache.browser.app.CacheKeyItem;
  import info.magnolia.cache.browser.rest.client.CacheService;
  import info.magnolia.cache.browser.rest.endpoint.CacheEndpoint;
  import info.magnolia.event.EventBus;
  import info.magnolia.i18nsystem.SimpleTranslator;
  import info.magnolia.ui.api.action.ActionExecutionException;
  import info.magnolia.ui.api.context.UiContext;
  import info.magnolia.ui.api.event.AdmincentralEventBus;
  import info.magnolia.ui.api.event.ContentChangedEvent;
  
  import java.util.List;
  import java.util.Map;
  
  import javax.inject.Named;
  import javax.ws.rs.ClientErrorException;
  
  import com.fasterxml.jackson.databind.JsonNode;
  
  import com.cedarsoftware.util.io.JsonWriter;
  import com.vaadin.v7.data.Item;
  
  /**
   * Action that send executes a REST call to the {@link info.magnolia.cache.browser.rest.endpoint.CacheEndpoint#delete(String, String)} to remove selected cache entry.
   */
  public class DeleteCacheEntryAction extends AbstractMultiItemAction<DeleteCacheEntryActionDefinition> {
  
      private final EventBus admincentralEventBus;
  
      public DeleteCacheEntryAction(DeleteCacheEntryActionDefinition definition, Item relatedItem, UiContext uiContext, SimpleTranslator i18n, @Named(AdmincentralEventBus.NAME) EventBus admincentralEventBus) {
          super(definition, relatedItem, uiContext, i18n);
          this.admincentralEventBus = admincentralEventBus;
      }
  
      public DeleteCacheEntryAction(DeleteCacheEntryActionDefinition definition, List<Item> relatedItems, UiContext uiContext, SimpleTranslator i18n, @Named(AdmincentralEventBus.NAME) EventBus admincentralEventBus) {
          super(definition, relatedItems, uiContext, i18n);
          this.admincentralEventBus = admincentralEventBus;
      }
  
      @Override
      protected void executeOnItem(Item item) throws Exception {
          if (item instanceof CacheKeyItem) {
              CacheKeyItem cacheKeyItem = (CacheKeyItem) item;
              for (Map.Entry<String, CacheService> entry : cacheKeyItem.getCacheServices().entrySet()) {
                  CacheService cacheService = entry.getValue();
                  try {
                      cacheService.delete(cacheKeyItem.getCacheName(), JsonWriter.objectToJson(cacheKeyItem.getItemId()));
                      admincentralEventBus.fireEvent(new ContentChangedEvent(cacheKeyItem.getItemId()));
                  } catch (ClientErrorException e) {
                      String errorMessage;
                      if (e.getResponse().getEntity() != null && e.getResponse().getEntity() instanceof JsonNode) {
                          JsonNode errorNode = (JsonNode) e.getResponse().getEntity();
                          errorMessage = entry.getKey() + ": " + errorNode.get(CacheEndpoint.PROPERTY_ERROR_MESSAGE).textValue();
                      } else {
                          errorMessage = entry.getKey() + ":" + e.getMessage();
                      }
                      e.getResponse().close();
                      throw new ActionExecutionException(errorMessage);
                  }
              }
          }
      }
  
      @Override
      protected String getSuccessMessageKey() {
         return "cache-browser-app.actions.delete.success";
     }
 
     @Override
     protected String getFailureMessageKey() {
         return "cache-browser-app.actions.delete.error";
     }
 
     @Override
     protected String itemToString(Item item) {
         if (item instanceof CacheKeyItem) {
             return ((CacheKeyItem) item).getItemId().toString();
         }
         return null;
     }
 }