content: package act.data;
  
  /*-
   * #%L
   * ACT Framework
   * %%
   * Copyright (C) 2014 - 2018 ActFramework
   * %%
   * Licensed 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.
   * #L%
   */
  
  import act.Act;
  import act.conf.AppConfig;
  import org.joda.time.LocalDate;
  import org.joda.time.LocalDateTime;
  import org.joda.time.LocalTime;
  import org.joda.time.ReadablePartial;
  import org.joda.time.format.DateTimeFormat;
  import org.joda.time.format.DateTimeFormatter;
  import org.osgl.util.E;
  import org.osgl.util.S;
  
  import java.text.DateFormat;
  import java.text.SimpleDateFormat;
  import java.util.Locale;
  
  public enum DateTimeType {
      DATE() {
          @Override
          public String defaultPattern(AppConfig config) {
              return config.datePattern();
          }
  
          @Override
          public String defaultPattern(AppConfig config, Locale locale) {
              return config.localizedDatePattern(locale);
          }
  
          @Override
          protected String defaultLongPattern(Locale locale) {
              return ((SimpleDateFormat) DateFormat.getDateInstance(DateFormat.LONG, locale)).toPattern();
          }
  
          @Override
          protected String defaultMediumPattern(Locale locale) {
              return ((SimpleDateFormat) DateFormat.getDateInstance(DateFormat.MEDIUM, locale)).toPattern();
          }
  
          @Override
          protected String defaultShortPattern(Locale locale) {
              return ((SimpleDateFormat) DateFormat.getDateInstance(DateFormat.SHORT, locale)).toPattern();
          }
      },
  
      TIME() {
          @Override
          public String defaultPattern(AppConfig config) {
              return config.timePattern();
          }
  
          @Override
          public String defaultPattern(AppConfig config, Locale locale) {
              return config.localizedTimePattern(locale);
          }
  
          @Override
          protected String defaultLongPattern(Locale locale) {
              return ((SimpleDateFormat) DateFormat.getTimeInstance(DateFormat.LONG, locale)).toPattern();
          }
  
          @Override
          protected String defaultMediumPattern(Locale locale) {
              return ((SimpleDateFormat) DateFormat.getTimeInstance(DateFormat.MEDIUM, locale)).toPattern();
          }
  
          @Override
          protected String defaultShortPattern(Locale locale) {
              return ((SimpleDateFormat) DateFormat.getTimeInstance(DateFormat.SHORT, locale)).toPattern();
          }
      },
  
      DATE_TIME() {
          @Override
          public String defaultPattern(AppConfig config) {
              return config.dateTimePattern();
          }
  
          @Override
          public String defaultPattern(AppConfig config, Locale locale) {
              return config.localizedDateTimePattern(locale);
          }
  
          @Override
          protected String defaultLongPattern(Locale locale) {
              return ((SimpleDateFormat) DateFormat.getDateTimeInstance(DateFormat.LONG, DateFormat.LONG, locale)).toPattern();
          }
  
          @Override
          protected String defaultMediumPattern(Locale locale) {
              return ((SimpleDateFormat) DateFormat.getDateTimeInstance(DateFormat.MEDIUM, DateFormat.MEDIUM, locale)).toPattern();
          }
  
          @Override
          protected String defaultShortPattern(Locale locale) {
              return ((SimpleDateFormat) DateFormat.getDateTimeInstance(DateFormat.SHORT, DateFormat.SHORT, locale)).toPattern();
          }
      };
  
      private volatile DateTimeFormatter defaultJodaFormatter;
  
      public String suffix() {
          if (DATE == this) {
              return ".date";
          } else if (TIME == this) {
              return ".time";
          } else {
              return ".date_time";
          }
      }
  
      public DateTimeFormatter defaultJodaFormatter() {
          if (null == defaultJodaFormatter) {
              synchronized (this) {
                  if (null == defaultJodaFormatter)
                      defaultJodaFormatter = createDefaultJodaFormatter(Act.appConfig());
              }
          }
          return defaultJodaFormatter;
      }
  
      public String defaultPattern(DateTimeStyle style, Locale locale) {
          int styleId = null == style ? DateFormat.DEFAULT : style.id();
          if (DATE == this) {
              return ((SimpleDateFormat) DateFormat.getDateInstance(styleId, locale)).toPattern();
          } else if (TIME == this) {
              return ((SimpleDateFormat) DateFormat.getTimeInstance(styleId, locale)).toPattern();
          } else {
              return ((SimpleDateFormat) DateFormat.getDateTimeInstance(styleId, styleId, locale)).toPattern();
          }
      }
  
      public String sanitizePattern(String dateTimePattern) {
          if (S.blank(dateTimePattern)) {
              return null;
          }
          if (DATE == this) {
              // ensure no time part
              if (dateTimePattern.contains("h")
                      || dateTimePattern.contains("H")
                      || dateTimePattern.contains("m")
                      || dateTimePattern.contains("s")
                      || dateTimePattern.contains("S")) {
                  return null;
              }
          } else if (TIME == this) {
              // ensure no date part
              if (dateTimePattern.contains("M")
                      || dateTimePattern.contains("y")
                      || dateTimePattern.contains("d")
                      || dateTimePattern.contains("Y")
                      || dateTimePattern.contains("c")
                      || dateTimePattern.contains("e")
                      || dateTimePattern.contains("x")
                      || dateTimePattern.contains("C")
                      || dateTimePattern.contains("D")
                      || dateTimePattern.contains("F")
                      || dateTimePattern.contains("w")
                      || dateTimePattern.contains("W")
                      || dateTimePattern.contains("k")
                      || dateTimePattern.contains("K")) {
                  return null;
              }
          }
          return dateTimePattern;
      }
  
      public abstract String defaultPattern(AppConfig config, Locale locale);
  
      public abstract String defaultPattern(AppConfig config);
  
      protected abstract String defaultLongPattern(Locale locale);
      protected abstract String defaultMediumPattern(Locale locale);
      protected abstract String defaultShortPattern(Locale locale);
  
      protected DateTimeFormatter createDefaultJodaFormatter(AppConfig config) {
          String pattern = defaultPattern(config);
          return DateTimeFormat.forPattern(pattern).withLocale(config.locale());
      }
  
      public static DateTimeType of(ReadablePartial partial) {
          E.NPE(partial);
          if (partial instanceof LocalDate) {
              return DATE;
          }
          if (partial instanceof LocalTime) {
              return TIME;
          }
          if (partial instanceof LocalDateTime) {
              return DATE_TIME;
          }
          throw E.unsupport("ReadablePartial not supported: " + partial.getClass());
      }
  }
  