package org.apache.archiva.scheduler.indexing.maven;
   /*
    * Licensed to the Apache Software Foundation (ASF) under one
    * or more contributor license agreements.  See the NOTICE file
    * distributed with this work for additional information
    * regarding copyright ownership.  The ASF licenses this file
    * to you 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.
   */
  
  import org.apache.archiva.proxy.ProxyRegistry;
  import org.apache.archiva.proxy.model.NetworkProxy;
  import org.apache.archiva.scheduler.indexing.DownloadRemoteIndexException;
  import org.apache.archiva.scheduler.indexing.DownloadRemoteIndexScheduler;
  import org.apache.archiva.admin.model.RepositoryAdminException;
  import org.apache.archiva.configuration.ArchivaConfiguration;
  import org.apache.archiva.configuration.ConfigurationEvent;
  import org.apache.archiva.configuration.ConfigurationListener;
  import org.apache.archiva.indexer.UnsupportedBaseContextException;
  import org.apache.archiva.proxy.maven.WagonFactory;
  import org.apache.archiva.repository.RepositoryRegistry;
  import org.apache.archiva.repository.features.RemoteIndexFeature;
  import org.apache.commons.lang3.StringUtils;
  import org.apache.maven.index.context.IndexingContext;
  import org.apache.maven.index.packer.IndexPacker;
  import org.apache.maven.index.updater.IndexUpdater;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  import org.springframework.scheduling.TaskScheduler;
  import org.springframework.scheduling.support.CronTrigger;
  import org.springframework.stereotype.Service;
  
  import javax.annotation.PostConstruct;
  import javax.inject.Inject;
  import javax.inject.Named;
  import java.util.Date;
  import java.util.List;
  import java.util.concurrent.CopyOnWriteArrayList;
  
  /**
   * @author Olivier Lamy
   * @since 1.4-M1
   */
  @Service( "downloadRemoteIndexScheduler#default" )
  public class DefaultDownloadRemoteIndexScheduler
      implements ConfigurationListener, DownloadRemoteIndexScheduler
  {
  
      private Logger log = LoggerFactory.getLogger( getClass() );
  
      @Inject
      @Named( value = "taskScheduler#indexDownloadRemote" )
      private TaskScheduler taskScheduler;
  
      @Inject
      RepositoryRegistry repositoryRegistry;
  
      @Inject
      private ArchivaConfiguration archivaConfiguration;
  
      @Inject
      private WagonFactory wagonFactory;
  
      @Inject
      private IndexUpdater indexUpdater;
  
      @Inject
      private IndexPacker indexPacker;
  
      @Inject
      private ProxyRegistry proxyRegistry;
  
      // store ids about currently running remote download : updated in DownloadRemoteIndexTask
      private List<String> runningRemoteDownloadIds = new CopyOnWriteArrayList<String>();
  
      @PostConstruct
      public void startup()
              throws
          DownloadRemoteIndexException, UnsupportedBaseContextException {
          archivaConfiguration.addListener( this );
          // TODO add indexContexts even if null
  
          for ( org.apache.archiva.repository.RemoteRepository remoteRepository : repositoryRegistry.getRemoteRepositories() )
          {
              String contextKey = "remote-" + remoteRepository.getId();
              IndexingContext context = remoteRepository.getIndexingContext().getBaseContext(IndexingContext.class);
              if ( context == null )
              {
                  continue;
             }
             RemoteIndexFeature rif = remoteRepository.getFeature(RemoteIndexFeature.class).get();
 
 
             // TODO record jobs from configuration
             if ( rif.isDownloadRemoteIndex() && StringUtils.isNotEmpty(
                 remoteRepository.getSchedulingDefinition() ) )
             {
                 boolean fullDownload = context.getIndexDirectoryFile().list().length == 0;
                 scheduleDownloadRemote( remoteRepository.getId(), false, fullDownload );
             }
         }
 
 
     }
 
     @Override
     public void configurationEvent( ConfigurationEvent event )
     {
         // TODO remove jobs and add again
     }
 
 
     @Override
     public void scheduleDownloadRemote( String repositoryId, boolean now, boolean fullDownload )
         throws DownloadRemoteIndexException
     {
         org.apache.archiva.repository.RemoteRepository remoteRepo = repositoryRegistry.getRemoteRepository(repositoryId);
 
         if ( remoteRepo == null )
         {
             log.warn( "ignore scheduleDownloadRemote for repo with id {} as not exists", repositoryId );
             return;
         }
         if (!remoteRepo.supportsFeature(RemoteIndexFeature.class)) {
             log.warn("ignore scheduleDownloadRemote for repo with id {}. Does not support remote index.", repositoryId);
             return;
         }
         RemoteIndexFeature rif = remoteRepo.getFeature(RemoteIndexFeature.class).get();
         NetworkProxy networkProxy = null;
         if ( StringUtils.isNotBlank( rif.getProxyId() ) )
         {
             networkProxy = proxyRegistry.getNetworkProxy( rif.getProxyId() );
             if ( networkProxy == null )
             {
                 log.warn(
                     "your remote repository is configured to download remote index trought a proxy we cannot find id:{}",
                     rif.getProxyId() );
             }
         }
 
         DownloadRemoteIndexTaskRequestuest.html#DownloadRemoteIndexTaskRequest">DownloadRemoteIndexTaskRequest downloadRemoteIndexTaskRequest = new DownloadRemoteIndexTaskRequest() //
             .setRemoteRepository( remoteRepo ) //
             .setNetworkProxy( networkProxy ) //
             .setFullDownload( fullDownload ) //
             .setWagonFactory( wagonFactory ) //
             .setIndexUpdater( indexUpdater ) //
             .setIndexPacker( this.indexPacker );
 
         if ( now )
         {
             log.info( "schedule download remote index for repository {}", remoteRepo.getId() );
             // do it now
             taskScheduler.schedule(
                 new DownloadRemoteIndexTask( downloadRemoteIndexTaskRequest, this.runningRemoteDownloadIds ),
                 new Date() );
         }
         else
         {
             log.info( "schedule download remote index for repository {} with cron expression {}",
                       remoteRepo.getId(), remoteRepo.getSchedulingDefinition());
             try
             {
                 CronTrigger cronTrigger = new CronTrigger( remoteRepo.getSchedulingDefinition());
                 taskScheduler.schedule(
                     new DownloadRemoteIndexTask( downloadRemoteIndexTaskRequest, this.runningRemoteDownloadIds ),
                     cronTrigger );
             }
             catch ( IllegalArgumentException e )
             {
                 log.warn( "Unable to schedule remote index download: {}", e.getLocalizedMessage() );
             }
 
             if ( rif.isDownloadRemoteIndexOnStartup() )
             {
                 log.info(
                     "remote repository {} configured with downloadRemoteIndexOnStartup schedule now a download",
                     remoteRepo.getId() );
                 taskScheduler.schedule(
                     new DownloadRemoteIndexTask( downloadRemoteIndexTaskRequest, this.runningRemoteDownloadIds ),
                     new Date() );
             }
         }
 
     }
 
     public TaskScheduler getTaskScheduler()
     {
         return taskScheduler;
     }
 
     public void setTaskScheduler( TaskScheduler taskScheduler )
     {
         this.taskScheduler = taskScheduler;
     }
 
     @Override
     public List<String> getRunningRemoteDownloadIds()
     {
         return runningRemoteDownloadIds;
     }
 }