/**
    * 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.ui.field;
  
  import info.magnolia.ui.field.factory.DateFieldFactory;
  
  import java.time.LocalDateTime;
  import java.time.format.DateTimeFormatter;
  import java.time.temporal.Temporal;
  import java.util.Optional;
  
  /**
   * Field definition for a date picker.
   */
  @FieldType("dateField")
  public class DateFieldDefinition extends ConfiguredFieldDefinition<Object> {
  
      public static final String NOW = "now";
  
      private boolean time = false;
  
      private String dateFormat = "yyyy-MM-dd";
  
      private String timeFormat = "HH:mm";
  
      public DateFieldDefinition() {
          setFactoryClass(DateFieldFactory.class);
          setType(Temporal.class);
      }
  
      public void init() {
          Optional.ofNullable(super.getDefaultValue())
                  .map(String::valueOf)
                  .flatMap(this::asTemporal).ifPresent(this::setDefaultValue);
      }
  
      public boolean isTime() {
          return time;
      }
  
      public void setTime(boolean time) {
          this.time = time;
      }
  
      public String getDateFormat() {
          return dateFormat;
      }
  
      public void setDateFormat(String dateFormat) {
          this.dateFormat = dateFormat;
      }
  
      public String getTimeFormat() {
          return timeFormat;
      }
  
      public void setTimeFormat(String timeFormat) {
          this.timeFormat = timeFormat;
      }
  
      private Optional<Temporal> asTemporal(String defaultValue) {
          if (NOW.equalsIgnoreCase(defaultValue)) {
              return Optional.of(LocalDateTime.now());
          }
  
          String pattern = isTime() ? getDateFormat() : getDateFormat() + " " + getTimeFormat();
          return Optional.of(LocalDateTime.parse(defaultValue, DateTimeFormatter.ofPattern(pattern)));
      }
 }