/*
    * 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.
   */
  package org.apache.maven.scm.provider.svn.svnexe.command.info;
  
  import java.time.format.DateTimeFormatter;
  import java.time.temporal.TemporalAccessor;
  import java.util.ArrayList;
  import java.util.List;
  
  import org.apache.maven.scm.command.info.InfoItem;
  import org.apache.maven.scm.util.AbstractConsumer;
  
  /**
   * @author <a href="mailto:kenney@apache.org">Kenney Westerhof</a>
   */
  public class SvnInfoConsumer extends AbstractConsumer {
      private final List<InfoItem> infoItems = new ArrayList<>();
  
      private InfoItem currentItem = new InfoItem();
  
      private static final DateTimeFormatter DT_FORMATTER = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss Z");
  
      /**
       * {@inheritDoc}
       */
      public void consumeLine(String s) {
          if (s.equals("")) {
              if (currentItem != null) {
                  infoItems.add(currentItem);
              }
  
              currentItem = new InfoItem();
          } else if (s.startsWith("Path: ")) {
              currentItem.setPath(getValue(s));
          } else if (s.startsWith("URL: ")) {
              currentItem.setURL(getValue(s));
          } else if (s.startsWith("Repository Root: ")) {
              currentItem.setRepositoryRoot(getValue(s));
          } else if (s.startsWith("Repository UUID: ")) {
              currentItem.setRepositoryUUID(getValue(s));
          } else if (s.startsWith("Revision: ")) {
              currentItem.setRevision(getValue(s));
          } else if (s.startsWith("Node Kind: ")) {
              currentItem.setNodeKind(getValue(s));
          } else if (s.startsWith("Schedule: ")) {
              currentItem.setSchedule(getValue(s));
          } else if (s.startsWith("Last Changed Author: ")) {
              currentItem.setLastChangedAuthor(getValue(s));
          } else if (s.startsWith("Last Changed Rev: ")) {
              currentItem.setLastChangedRevision(getValue(s));
          } else if (s.startsWith("Last Changed Date: ")) {
              currentItem.setLastChangedDateTime(parseDate(getValue(s)));
              currentItem.setLastChangedDate(getValue(s));
          }
      }
  
      private static String getValue(String s) {
          int idx = s.indexOf(": ");
  
          if (idx < 0) {
              // FIXME: Can't throw any exceptions in consumeLine..
              return null;
          } else {
              return s.substring(idx + 2);
          }
      }
  
      public List<InfoItem> getInfoItems() {
          return infoItems;
      }
  
      static TemporalAccessor parseDate(String dateText) {
          // strip the tailing text in parenthesis
          int startSuffix = dateText.indexOf('(');
          if (startSuffix != -1) {
              dateText = dateText.substring(0, startSuffix);
          }
          return DT_FORMATTER.parse(dateText.trim());
      }
  }