package fr.ifremer.quadrige2.core.action;
   
   /*-
    * #%L
    * Quadrige2 Core :: Quadrige2 Core Shared
    * $Id:$
    * $HeadURL:$
    * %%
    * Copyright (C) 2017 Ifremer
   * %%
   * This program is free software: you can redistribute it and/or modify
   * it under the terms of the GNU Affero General Public License as published by
   * the Free Software Foundation, either version 3 of the License, or
   * (at your option) any later version.
   * 
   * This program is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   * GNU General Public License for more details.
   * 
   * You should have received a copy of the GNU Affero General Public License
   * along with this program.  If not, see <http://www.gnu.org/licenses/>.
   * #L%
   */
  
  
  import fr.ifremer.quadrige2.core.config.Quadrige2Configuration;
  import fr.ifremer.quadrige2.core.dao.technical.Daos;
  import fr.ifremer.quadrige2.core.exception.Quadrige2TechnicalException;
  import fr.ifremer.quadrige2.core.service.DatabaseSchemaService;
  import fr.ifremer.quadrige2.core.service.ServiceLocator;
  import org.apache.commons.logging.Log;
  import org.apache.commons.logging.LogFactory;
  import org.nuiton.version.Version;
  
  import java.io.File;
  import java.io.IOException;
  
  /**
   * <p>DatabaseChangeLogAction class.</p>
   */
  public class DatabaseChangeLogAction {
      /* Logger */
      private static final Log log = LogFactory.getLog(DatabaseChangeLogAction.class);
  
      /**
       * <p>run.</p>
       */
      public void run() {
          Quadrige2Configuration config = Quadrige2Configuration.getInstance();
          
          if (log.isInfoEnabled()) {            
              log.info("Starting change log file generation...");        
          }
          ActionUtils.logConnectionProperties();
  
          boolean isValidConnection = Daos.isValidConnectionProperties(config.getJdbcDriver(),
                  config.getJdbcURL(),
                  config.getJdbcUsername(),
                  config.getJdbcPassword()); 
  
          if (!isValidConnection) {
              log.warn("Connection error: could not generate changelog file.");
              return;
          }
          DatabaseSchemaService databaseSchemaService = ServiceLocator.instance().getService("databaseSchemaService", DatabaseSchemaService.class);
  
          // Check if database is well loaded
          if (!databaseSchemaService.isDbLoaded()) {
              log.warn("Database not start ! Could not generate changelog file.");
              return;
          }
  
          try {
              Version actualDbVersion = databaseSchemaService.getDbVersion();
              if (actualDbVersion != null) {
                  log.info("Database schema version is: " + actualDbVersion.toString());
              }
  
              Version modelVersion = config.getVersion();
              log.info("Model version is: " + modelVersion.toString());
          } catch (Quadrige2TechnicalException e) {
              log.error("Error while getting versions.", e);
          }
  
          File outputFile = ActionUtils.checkAndGetOutputFile(false, this.getClass());
          
          try {
              log.info("Launching changelog file generation...");
              databaseSchemaService.generateDiffChangeLog(outputFile);
              if (outputFile != null) {
                  log.info(String.format("Database changelog file successfullly generated at %s", outputFile));
              }
              else {
                  log.info("Database changelog file successfullly generated.");
              }
          } catch (Quadrige2TechnicalException e) {
              log.error("Error while generating changelog file.", e);
          } catch (IOException e) {
             log.error("Error while generating changelog file.", e);
         }
     }
 }