/*
    * 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.plugins.pdf;
  
  import java.text.SimpleDateFormat;
  import java.util.Date;
  import java.util.Locale;
  import java.util.TimeZone;
  
  /**
   * Simple bean to allow date interpolation in the document descriptor, i.e.
   * <pre>
   * ${year}  = 2009
   * ${date}  = 2009-05-17
   * </pre>
   * @author ltheussl
   */
  public class DateBean {
      private static final TimeZone UTC_TIME_ZONE = TimeZone.getTimeZone("UTC");
  
      private static final SimpleDateFormat YEAR = new SimpleDateFormat("yyyy", Locale.US);
      private static final SimpleDateFormat MONTH = new SimpleDateFormat("MM", Locale.US);
      private static final SimpleDateFormat DAY = new SimpleDateFormat("dd", Locale.US);
      private static final SimpleDateFormat HOUR = new SimpleDateFormat("HH", Locale.US);
      private static final SimpleDateFormat MINUTE = new SimpleDateFormat("mm", Locale.US);
      private static final SimpleDateFormat SECOND = new SimpleDateFormat("ss", Locale.US);
      private static final SimpleDateFormat MILLI_SECOND = new SimpleDateFormat("SSS", Locale.US);
      private static final SimpleDateFormat DATE = new SimpleDateFormat("yyyy-MM-dd", Locale.US);
      private static final SimpleDateFormat TIME = new SimpleDateFormat("HH:mm:ss'Z'", Locale.US);
      private static final SimpleDateFormat DATE_TIME = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss'Z'", Locale.US);
  
      static {
          YEAR.setTimeZone(UTC_TIME_ZONE);
          MONTH.setTimeZone(UTC_TIME_ZONE);
          DAY.setTimeZone(UTC_TIME_ZONE);
          HOUR.setTimeZone(UTC_TIME_ZONE);
          MINUTE.setTimeZone(UTC_TIME_ZONE);
          SECOND.setTimeZone(UTC_TIME_ZONE);
          MILLI_SECOND.setTimeZone(UTC_TIME_ZONE);
          DATE.setTimeZone(UTC_TIME_ZONE);
          TIME.setTimeZone(UTC_TIME_ZONE);
          DATE_TIME.setTimeZone(UTC_TIME_ZONE);
      }
  
      private Date date;
  
      /**
       * Construct a new DateBean for the current Date.
       */
      public DateBean() {
          this(new Date());
      }
  
      /**
       * Construct a new DateBean with a given Date.
       *
       * @param date the date to set.
       */
      public DateBean(final Date date) {
          this.date = date;
      }
  
      /**
       * Set the Date of this bean.
       *
       * @param date the date to set.
       */
      public void setDate(final Date date) {
          this.date = date;
      }
  
      /**
       * @return the year in format "yyyy".
       */
      public String getYear() {
          synchronized (this) {
              return YEAR.format(date);
          }
      }
  
      /**
       * @return the month in format "MM".
       */
     public String getMonth() {
         synchronized (this) {
             return MONTH.format(date);
         }
     }
 
     /**
      * @return the day in format "dd".
      */
     public String getDay() {
         synchronized (this) {
             return DAY.format(date);
         }
     }
 
     /**
      * @return the hour in format "HH".
      */
     public String getHour() {
         synchronized (this) {
             return HOUR.format(date);
         }
     }
 
     /**
      * @return the minute in format "mm".
      */
     public String getMinute() {
         synchronized (this) {
             return MINUTE.format(date);
         }
     }
 
     /**
      * @return the second in format "ss".
      */
     public String getSecond() {
         synchronized (this) {
             return SECOND.format(date);
         }
     }
 
     /**
      * @return the millisecond in format "SSS".
      */
     public String getMillisecond() {
         synchronized (this) {
             return MILLI_SECOND.format(date);
         }
     }
 
     /**
      * @return the date using the ISO 8601 format, i.e. <code>yyyy-MM-dd</code>.
      */
     public String getDate() {
         synchronized (this) {
             return DATE.format(date);
         }
     }
 
     /**
      * @return the time using the ISO 8601 format and UTC time zone, i.e. <code>HH:mm:ss'Z'</code>.
      */
     public String getTime() {
         synchronized (this) {
             return TIME.format(date);
         }
     }
 
     /**
      * @return the datetime using the ISO 8601 format, i.e. <code>yyyy-MM-dd'T'HH:mm:ss'Z'</code>.
      */
     public String getDateTime() {
         synchronized (this) {
             return DATE_TIME.format(date);
         }
     }
 }