content: /*
   * Copyright 2002-2019 Drew Noakes and contributors
   *
   *    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
   *
   *        https://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.
   *
   * More information about this project is available at:
   *
   *    https://drewnoakes.com/code/exif/
   *    https://github.com/drewnoakes/metadata-extractor
   */
  
  package com.drew.metadata;
  
  import com.drew.lang.annotations.NotNull;
  import com.drew.lang.annotations.Nullable;
  
  /**
   * Represents an age in years, months, days, hours, minutes and seconds.
   * <p>
   * Used by certain Panasonic cameras which have face recognition features.
   *
   * @author Drew Noakes https://drewnoakes.com
   */
  public class Age
  {
      private final int _years;
      private final int _months;
      private final int _days;
      private final int _hours;
      private final int _minutes;
      private final int _seconds;
  
      /**
       * Parses an age object from the string format used by Panasonic cameras:
       * <code>0031:07:15 00:00:00</code>
       *
       * @param s The String in format <code>0031:07:15 00:00:00</code>.
       * @return The parsed Age object, or null if the value could not be parsed
       */
      @Nullable
      public static Age fromPanasonicString(@NotNull String s)
      {
          if (s.length() != 19 || s.startsWith("9999:99:99"))
              return null;
  
          try {
              int years = Integer.parseInt(s.substring(0, 4));
              int months = Integer.parseInt(s.substring(5, 7));
              int days = Integer.parseInt(s.substring(8, 10));
              int hours = Integer.parseInt(s.substring(11, 13));
              int minutes = Integer.parseInt(s.substring(14, 16));
              int seconds = Integer.parseInt(s.substring(17, 19));
  
              return new Age(years, months, days, hours, minutes, seconds);
          }
          catch (NumberFormatException ignored)
          {
              return null;
          }
      }
  
      public Age(int years, int months, int days, int hours, int minutes, int seconds)
      {
          _years = years;
          _months = months;
          _days = days;
          _hours = hours;
          _minutes = minutes;
          _seconds = seconds;
      }
  
      public int getYears()
      {
          return _years;
      }
  
      public int getMonths()
      {
          return _months;
      }
  
      public int getDays()
      {
          return _days;
      }
  
      public int getHours()
      {
          return _hours;
      }
  
      public int getMinutes()
      {
          return _minutes;
      }
  
      public int getSeconds()
      {
          return _seconds;
      }
  
      @Override
      public String toString()
      {
          return String.format("%04d:%02d:%02d %02d:%02d:%02d", _years, _months, _days, _hours, _minutes, _seconds);
      }
  
      public String toFriendlyString()
      {
          StringBuilder result = new StringBuilder();
          appendAgePart(result, _years, "year");
          appendAgePart(result, _months, "month");
          appendAgePart(result, _days, "day");
          appendAgePart(result, _hours, "hour");
          appendAgePart(result, _minutes, "minute");
          appendAgePart(result, _seconds, "second");
          return result.toString();
      }
  
      private static void appendAgePart(StringBuilder result, final int num, final String singularName)
      {
          if (num == 0)
              return;
          if (result.length()!=0)
              result.append(' ');
          result.append(num).append(' ').append(singularName);
          if (num != 1)
              result.append('s');
      }
  
      @Override
      public boolean equals(@Nullable Object o)
      {
          if (this == o) return true;
          if (o == null || getClass() != o.getClass()) return false;
  
          Age age = (Age)o;
  
          if (_days != age._days) return false;
          if (_hours != age._hours) return false;
          if (_minutes != age._minutes) return false;
          if (_months != age._months) return false;
          if (_seconds != age._seconds) return false;
          if (_years != age._years) return false;
  
          return true;
      }
  
      @Override
      public int hashCode()
      {
          int result = _years;
          result = 31 * result + _months;
          result = 31 * result + _days;
          result = 31 * result + _hours;
          result = 31 * result + _minutes;
          result = 31 * result + _seconds;
          return result;
      }
  }
  