/**
    * This file Copyright (c) 2019 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.module.cache.ehcache3.setup;
  
  import info.magnolia.init.MagnoliaConfigurationProperties;
  import info.magnolia.init.MagnoliaInitPaths;
  import info.magnolia.jcr.util.PropertyUtil;
  import info.magnolia.module.InstallContext;
  import info.magnolia.module.cache.ehcache3.EhCache3Factory;
  import info.magnolia.module.delta.AbstractRepositoryTask;
  import info.magnolia.module.delta.NodeExistsDelegateTask;
  import info.magnolia.repository.RepositoryConstants;
  
  import java.io.File;
  import java.io.IOException;
  
  import javax.jcr.RepositoryException;
  
  import org.apache.commons.io.FileUtils;
  
  /**
   * Removes disk store.
   */
  class CleanUpDiskStoreDirectoryTask extends NodeExistsDelegateTask {
  
      static final String DISK_STORE_PATH = "diskStorePath";
      static final String EHCACHE_3 = "/modules/cache/config/cacheFactory/delegateFactories/ehcache3";
  
      CleanUpDiskStoreDirectoryTask(MagnoliaConfigurationProperties configurationProperties, MagnoliaInitPaths magnoliaInitPaths) {
          super("Removes disk store", EHCACHE_3, new CleanUp(configurationProperties, magnoliaInitPaths));
      }
  
      private static class CleanUp extends AbstractRepositoryTask {
  
          private final MagnoliaConfigurationProperties configurationProperties;
          private final MagnoliaInitPaths magnoliaInitPaths;
  
          private CleanUp(MagnoliaConfigurationProperties configurationProperties, MagnoliaInitPaths magnoliaInitPaths) {
              super("Remove disk store", "Clean up incompatible ehcache3 disk store");
              this.configurationProperties = configurationProperties;
              this.magnoliaInitPaths = magnoliaInitPaths;
          }
  
          @Override
          public void doExecute(InstallContext installContext) throws RepositoryException {
              final File directory = new File(getPath(installContext));
              try {
                  FileUtils.deleteDirectory(directory);
              } catch (IOException e) {
                  installContext.error(String.format("Can't clean up cache store {%s} due to {%s}. Please stop the webapp and remove the directory manually.", directory, e.getMessage()), e);
              }
          }
  
          private String getPath(InstallContext installContext) throws RepositoryException {
              String path = PropertyUtil.getString(installContext.getJCRSession(RepositoryConstants.CONFIG).getNode(EHCACHE_3), DISK_STORE_PATH);
              if (path == null) {
                  path = EhCache3Factory.resolveDiskStorePath(configurationProperties, magnoliaInitPaths);
              }
              return path;
          }
      }
  
  
  }