package fr.ifremer.reefdb.dao.technical;
   
   /*
    * #%L
    * Reef DB :: Core
    * $Id:$
    * $HeadURL:$
    * %%
    * Copyright (C) 2014 - 2015 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 com.vividsolutions.jts.geom.Envelope;
  import com.vividsolutions.jts.geom.Geometry;
  import fr.ifremer.reefdb.dto.ReefDbBeanFactory;
  import fr.ifremer.reefdb.dto.CoordinateDTO;
  import org.apache.commons.lang3.StringUtils;
  
  import java.util.Objects;
  
  /**
   * Geometry utility class
   * <p/>
   * Created by Ludovic on 16/04/2015.
   */
  public class Geometries extends fr.ifremer.quadrige3.core.dao.technical.Geometries {
  
      /**
       * <p>getCoordinate.</p>
       *
       * @param position a {@link java.lang.String} object.
       * @return a {@link fr.ifremer.reefdb.dto.CoordinateDTO} object.
       */
      public static CoordinateDTO getCoordinate(String position) {
  
          CoordinateDTO coordinate = ReefDbBeanFactory.newCoordinateDTO();
  
          if (StringUtils.isNotBlank(position)) {
  
              Geometry geometry = getGeometry(position);
              Envelope envelope = geometry.getEnvelopeInternal();
  
              coordinate.setMinLongitude(envelope.getMinX());
              coordinate.setMinLatitude(envelope.getMinY());
              if (envelope.getWidth() > 0 || envelope.getHeight() > 0) {
                  coordinate.setMaxLongitude(envelope.getMaxX());
                  coordinate.setMaxLatitude(envelope.getMaxY());
              }
          }
  
          return coordinate;
      }
  
      /**
       * <p>getPointPosition.</p>
       *
       * @param coordinate a {@link fr.ifremer.reefdb.dto.CoordinateDTO} object.
       * @return a {@link java.lang.String} object.
       */
      public static String getPointPosition(CoordinateDTO coordinate) {
  
          if (coordinate == null || !isPoint(coordinate)) {
              return null;
          }
  
          Geometry geometry = createPoint(coordinate.getMinLongitude(), coordinate.getMinLatitude());
          return getWKTString(geometry);
      }
  
      /**
       * <p>getLinePosition.</p>
       *
       * @param coordinate a {@link fr.ifremer.reefdb.dto.CoordinateDTO} object.
       * @return a {@link java.lang.String} object.
       */
      public static String getLinePosition(CoordinateDTO coordinate) {
  
          if (coordinate == null || isPoint(coordinate)) {
              return null;
          }
  
          Geometry geometry = createLine(coordinate.getMinLongitude(), coordinate.getMinLatitude(), coordinate.getMaxLongitude(), coordinate.getMaxLatitude());
          return getWKTString(geometry);
      }
  
      /**
      * <p>getAreaPosition.</p>
      *
      * @param coordinate a {@link fr.ifremer.reefdb.dto.CoordinateDTO} object.
      * @return a {@link java.lang.String} object.
      */
     public static String getAreaPosition(CoordinateDTO coordinate) {
 
         if (coordinate == null || isPoint(coordinate)) {
             return null;
         }
 
         Geometry geometry = createPolygon(coordinate.getMinLongitude(), coordinate.getMinLatitude(), coordinate.getMaxLongitude(), coordinate.getMaxLatitude());
         return getWKTString(geometry);
     }
 
     /**
      * <p>isValid.</p>
      *
      * @param coordinate a {@link fr.ifremer.reefdb.dto.CoordinateDTO} object.
      * @return a boolean.
      */
     public static boolean isValid(CoordinateDTO coordinate) {
         return coordinate != null &&
                 ((coordinate.getMinLongitude() != null && coordinate.getMaxLongitude() == null && coordinate.getMinLatitude() != null && coordinate.getMaxLatitude() == null)
                         || (coordinate.getMinLongitude() != null && coordinate.getMaxLongitude() != null && coordinate.getMinLatitude() != null && coordinate.getMaxLatitude() != null));
 
     }
 
     /**
      * <p>isPoint.</p>
      *
      * @param coordinate a {@link fr.ifremer.reefdb.dto.CoordinateDTO} object.
      * @return a boolean.
      */
     public static boolean isPoint(CoordinateDTO coordinate) {
 
         if (coordinate.getMinLongitude() != null && coordinate.getMinLatitude() != null
                 && coordinate.getMaxLongitude() == null && coordinate.getMaxLatitude() == null) {
 
             // coordinate has only min long/lat
             return true;
         }
 
         // true if min long/lat equals max log/lat
         return coordinate.getMinLongitude() != null && coordinate.getMinLatitude() != null && coordinate.getMaxLongitude() != null && coordinate.getMaxLatitude() != null
                 && Objects.equals(coordinate.getMinLongitude(), coordinate.getMaxLongitude()) && Objects.equals(coordinate.getMinLatitude(), coordinate.getMaxLatitude());
 
     }
 
     /**
      * <p>equals.</p>
      *
      * @param source a {@link fr.ifremer.reefdb.dto.CoordinateDTO} object.
      * @param target a {@link fr.ifremer.reefdb.dto.CoordinateDTO} object.
      * @return a boolean.
      */
     public static boolean equals(CoordinateDTO source, CoordinateDTO target) {
 
         if (source == null && target == null) {
             // assume both null are equals
             return true;
         } else if (source == null ^ target == null) {
             // but if one is null, return false
             return false;
         }
 
         if (isPoint(source) && isPoint(target)) {
             // if both are point, check only min long/lat
             return Objects.equals(source.getMinLongitude(), target.getMinLongitude()) && Objects.equals(source.getMinLatitude(), target.getMinLatitude());
         } else if (!isPoint(source) && !isPoint(target)) {
             // check all values
             return Objects.equals(source.getMinLongitude(), target.getMinLongitude()) && Objects.equals(source.getMinLatitude(), target.getMinLatitude())
                     && Objects.equals(source.getMaxLongitude(), target.getMaxLongitude()) && Objects.equals(source.getMaxLatitude(), target.getMaxLatitude());
         }
 
         // otherwise not equals
         return false;
 
     }
 
     /**
      * <p>equals.</p>
      *
      * @param source a {@link fr.ifremer.reefdb.dto.CoordinateDTO} object.
      * @param targetPosition a {@link java.lang.String} object.
      * @return a boolean.
      */
     public static boolean equals(CoordinateDTO source, String targetPosition) {
 
         CoordinateDTO target = getCoordinate(targetPosition);
 
         return equals(source, target);
     }
 
 }