package com.framework.util;

import java.math.BigDecimal;
import java.sql.Timestamp;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;
import java.util.TimeZone;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.commons.lang3.StringUtils;

/**
 * <p>
 * Title：TimeUtils.java
 * </p>
 * <p>
 * Description：時間日期操作工具類
 * </p>
 * <p>
 * Copyright：Copyright (c) 2004 TECHMORE,Inc
 * </p>
 * <p>
 * Company：TECHMORE,Inc
 * </p>
 * 
 * @author Jason 2005-4-11
 * @version 1.0
 */
public class TimeUtils {
	private static final Log log = LogFactory.getLog(TimeUtils.class);

	protected static final String DEFAULT_TIME_FORMAT = "yyyy/MM/dd";

	// Default date long "1800-01-01 00:00:00.0"
	public static final long DEFAULT_DATE = -5364691200000L;

	public static final String TIME_FORMAT = "yyyy/MM/dd HH:mm:ss";
	
	public static String getDate(Date date,String pattern) {
		return new SimpleDateFormat(pattern).format(date);
	}
	
	/**
	 * 格式化为YYYY-MM-DD
	 * @param date
	 * @return
	 */
	public static String getDefaultTimes1(Date date){
	    SimpleDateFormat dateFormat = new SimpleDateFormat(DEFAULT_TIME_FORMAT);
	    String endDate = dateFormat.format(new Date());
	    return endDate;
	}
	/**
         * 格式化为yyyy年MM月dd日 HH时mm分ss秒
         * @param date
         * @return
         */
        public static String getDefaultTimes(Date date){
            SimpleDateFormat dateFormat=new SimpleDateFormat("yyyy年MM月dd日 HH时mm分ss秒"); 
            String endDate = dateFormat.format(new Date());
            return endDate;
        }
	/**
	 * 取得默認日期
	 * 
	 * @param timestamp
	 *            Timestamp
	 * @return Calendar
	 */
	public static final Timestamp getDefaultTimestamp() {
		return new Timestamp(DEFAULT_DATE); // "1800-01-01 00:00:00.0"
	}

	/**
	 * 將Timestamp轉為String
	 * 
	 * @param pCalendar
	 *            Calendar
	 * @return Timestamp
	 */
	public static String timestamp2String(String format, Timestamp time) {
		if (time == null) {
			return null;
		}

		if (time.equals(getDefaultTimestamp())) {
			return "";
		}

		if (format == null) {
			format = "yyyy-MM-dd";
		}
		java.text.SimpleDateFormat formatter = new java.text.SimpleDateFormat(
				format);

		return formatter.format(time);
	}

	/**
	 * 將Date數據類型轉為Timestamp類型，時間是24點
	 * <p>
	 * <code>getCurrentDayWithSpecialPattern</code>
	 * </p>
	 * 
	 * @return String
	 * @author Ginger 2005-4-21
	 * @since 1.0
	 */
	public static String getCurrentDayWithSpecialPattern() {
		Calendar c = Calendar.getInstance();
		int hour = c.get(Calendar.HOUR_OF_DAY);
		String today = "";
		if (hour >= 12) {
			today = calendar2String("yyyy年MM月dd日下午hh:mm", c);
		} else {

			today = calendar2String("yyyy年MM月dd日上午hh:mm", c);
		}
		return today;
	} // end getCurrentDayWithSpecialPattern

	// -----------------------------------------------------------calendar2String
	/**
	 * 將Calendar轉為String
	 * 
	 * @param pCalendar
	 *            Calendar
	 * @return Timestamp
	 */
	public static String calendar2String(String format, Calendar cal) {
		if (cal.equals(getDefaultCalendar())) {
			return "";
		}

		if (format == null) {
			format = "yyyy-MM-dd";
		}
		java.text.SimpleDateFormat formatter = new java.text.SimpleDateFormat(
				format);

		if (cal == null) {
			return null;
		}
		return formatter.format(cal.getTime());
	}

	// --------------------------------------------------------getDefaultCalendar
	/**
	 * 取得默認日期
	 * 
	 * @param timestamp
	 *            Timestamp
	 * @return Calendar
	 */
	public static final Calendar getDefaultCalendar() {
		Calendar cal = Calendar.getInstance();
		cal.setTimeInMillis(DEFAULT_DATE); // "1800-01-01 00:00:00.0"
		return cal;
	}

	public static Integer getPublishAmount(Timestamp startPublishDate,
			Timestamp nextPublishDate, int frequency) {

		int publishAmount = 0;
		Calendar startCal = string2Calendar("yyyy-MM-dd", timestamp2String(
				null, startPublishDate));
		Calendar nextCal = string2Calendar("yyyy-MM-dd", timestamp2String(null,
				nextPublishDate));

		if (frequency == 2) {
			while (true) {
				publishAmount++;
				startCal.add(Calendar.DAY_OF_YEAR, 1);
				if (startCal.after(nextCal)) {
					break;
				}
			}

		} else if (frequency == 3) {
			while (true) {
				publishAmount++;
				startCal.add(Calendar.WEEK_OF_YEAR, 1);
				if (startCal.after(nextCal)) {
					break;
				}
			}

		} else if (frequency == 4) {
			while (true) {
				publishAmount++;
				startCal.add(Calendar.MONTH, 1);
				if (startCal.after(nextCal)) {
					break;
				}
			}

		} else if (frequency == 5) {
			while (true) {
				publishAmount++;
				startCal.add(Calendar.MONTH, 3);
				if (startCal.after(nextCal)) {
					break;
				}
			}

		}
		return publishAmount;
	}

	/**
	 * 得到指定日期的第二天，且小時，分鐘，秒，毫秒都是0，如：2005-04-09 00:00:00.0
	 * <p>
	 * <code>getNextDayTimestamp</code>
	 * </p>
	 * 
	 * @param date
	 *            Date
	 * @return Timestamp
	 * @author Joe 2004-8-15
	 * @since 1.0
	 */
	public static Timestamp getPreviousDate(Timestamp publishDate, int frequency) {

		log.info(">>>>>>>>:nextPublishDate " + publishDate);
		log.info(">>>>>>>>:frequency " + frequency);

		Calendar cal = string2Calendar("yyyy-MM-dd", timestamp2String(null,
				publishDate));

		if (frequency == 1) {
			cal.add(Calendar.MONTH, -2);
		} else if (frequency == 2) {
			cal.add(Calendar.MONTH, -1);
		} else if (frequency == 3) {
			cal.add(Calendar.WEEK_OF_YEAR, -2);
		} else if (frequency == 4) {
			cal.add(Calendar.WEEK_OF_YEAR, -1);
		}

		return string2Timestamp(calendar2String(cal));
	}

	/**
	 * 將java.util.Date數據類型轉為Calendar類型
	 * <p>
	 * <code>date2Calendar</code>
	 * </p>
	 * 
	 * @param date
	 * @return
	 * @author Jason 2005-4-8
	 * @since 1.0
	 */
	public static Calendar date2Calendar(java.util.Date date) {
		Calendar cal = null;
		if (date != null) {
			cal = GregorianCalendar.getInstance();
			cal.setTime(date);
		}
		return cal;
	}

	/**
	 * 取得系統日期
	 * 
	 * @return Calendar
	 * @author Jason 2004-8-9
	 * @since 1.0
	 */
	public static Calendar getCurrentCalendar() {
		return Calendar.getInstance();
	}

	/**
	 * 取得系統日期字符串,yyyy-MM-dd
	 * 
	 * @return Calendar
	 * @author Morgan 2005-01-13
	 * @since 1.0
	 */
	public static String getCurrentDateString() {
		return calendar2String(Calendar.getInstance());
	}

	/**
	 * 取得系統日期字符串
	 * 
	 * @return Calendar
	 * @author Morgan 2005-01-13
	 * @since 1.0
	 */
	public static String getCurrentDateString(String format) {
		return calendar2String(format, Calendar.getInstance(), null);
	}

	/**
	 * 取得系統日期
	 * 
	 * @return Timestamp
	 * @author Jason 2004-8-9
	 * @since 1.0
	 */
	public static Timestamp getCurrentTimestamp() {
		return new Timestamp(System.currentTimeMillis());
	}

	/**
	 * 取得系統日期的Timestamp，如果format不等於null,則只有format規定的內容有值
	 * 如：yyyy-MM-dd對應的值是2005-04-08 12:12 45 341
	 * <p>
	 * <code>getTodayTimestamp</code>
	 * </p>
	 * 
	 * @param format
	 * @return
	 * @author Jason 2005-4-8
	 * @since 1.0
	 */
	public static Timestamp getCurrentTimestamp(String format) {
		String today = date2String(format, getCurrentTimestamp(), null);
		return string2Timestamp(format, today);
	}

	/**
	 * 將Calendar轉為String,如果cal等於null,則返回def
	 * <p>
	 * <code>calendar2String</code>
	 * </p>
	 * 
	 * @param format
	 * @param cal
	 * @param def
	 * @return
	 * @author Jason 2005-4-11
	 * @since 1.0
	 */
	public static String calendar2String(String format, Calendar cal, String def) {
		if (cal == null) {
			return def;
		}

		if (format == null) {
			format = DEFAULT_TIME_FORMAT;
		}

		return new SimpleDateFormat(format).format(cal.getTime());
	}

	/**
	 * 將Calendar轉為String,如果cal等於null,則返回def
	 * 
	 * @param pCalendar
	 *            Calendar
	 * @return Timestamp
	 * @author Morgan 2004-12-22
	 * @since 1.0
	 */
	public static String calendar2String(Calendar cal, String def) {
		return calendar2String(null, cal, def);
	}

	/**
	 * 將Calendar轉為String,如果cal等於null,則返回null
	 * 
	 * @param pCalendar
	 *            Calendar
	 * @return Timestamp
	 * @author Morgan 2004-12-22
	 * @since 1.0
	 */
	public static String calendar2String(Calendar cal) {
		return calendar2String(null, cal, null);
	}

	/**
	 * 將java.util.Date轉為String,如果date等於time,則返回def
	 * 
	 * @param pCalendar
	 *            Calendar
	 * @return String
	 * @author Jason 2004-9-29
	 * @since 1.0
	 */
	public static String date2String(String format, java.util.Date date,
			String def) {
		if (date == null) {
			return def;
		}

		if (format == null) {
			format = DEFAULT_TIME_FORMAT;
		}

		return new SimpleDateFormat(format).format(date);
	}

	/**
	 * 將java.util.Date轉為String,如果date等於time,則返回null
	 * 
	 * @param pCalendar
	 *            Calendar
	 * @return String
	 * @author Jason 2004-9-29
	 * @since 1.0
	 */
	public static String date2String(String format, java.util.Date date) {
		return date2String(format, date, null);
	}

	/**
	 * 將Date轉為String,如果date等於time,則返回def
	 * 
	 * @param pCalendar
	 *            Calendar
	 * @return String
	 * @author Morgan 2004-12-22
	 * @since 1.0
	 */
	public static String date2String(java.util.Date date, String def) {
		return date2String(null, date, def);
	}

	/**
	 * 將Date轉為String,如果date等於time,則返回null
	 * 
	 * @param pCalendar
	 *            Calendar
	 * @return String
	 * @author Morgan 2004-12-22
	 * @since 1.0
	 */
	public static String date2String(java.util.Date date) {
		return date2String(null, date, null);
	}

	/**
	 * 將String轉為Timestamp
	 * 
	 * @param time
	 *            String
	 * @return String
	 * @author Jason 2004-8-9
	 * @since 1.0
	 */
	public static final Timestamp string2Timestamp(String format, String time) {
		if (format == null) {
			format = DEFAULT_TIME_FORMAT;
		}

		java.text.SimpleDateFormat simpleDateFormat = new java.text.SimpleDateFormat(
				format);

		try {
			return new Timestamp(simpleDateFormat.parse(time).getTime());
		} catch (ParseException e) {
			try {
				java.text.SimpleDateFormat simpleDateFormat2 = new java.text.SimpleDateFormat(
						"yyyy-MM-dd");
				return new Timestamp(simpleDateFormat2.parse(time).getTime());
			}

			catch (ParseException e1) {
				throw new IllegalArgumentException("時間字串解析錯誤");
			}
		}
	}

	/**
	 * 將String轉為Timestamp
	 * 
	 * @param time
	 *            String
	 * @return String
	 * @author Morgan 2004-12-22
	 * @since 1.0
	 */
	public static final Timestamp string2Timestamp(String time) {
		return string2Timestamp(null, time);
	}

	/**
	 * 將String轉為Calendar
	 * 
	 * @param dateString
	 *            String
	 * @return Timestamp
	 * @author Jason 2004-8-9
	 * @since 1.0
	 */
	public static final Calendar string2Calendar(String format, String cal) {
		if (format == null) {
			format = DEFAULT_TIME_FORMAT;
		}

		SimpleDateFormat simpleDateFormat = new SimpleDateFormat(format);
		java.util.Date date = null;

		try {
			date = simpleDateFormat.parse(cal);
		} catch (ParseException e) {
			throw new IllegalArgumentException("時間字串解析錯誤");
		}

		Calendar calendar = Calendar.getInstance();
		calendar.setTime(date);
		return calendar;
	}

	/**
	 * 將String轉為Calendar
	 * 
	 * @param dateString
	 *            String
	 * @return Timestamp
	 * @author Morgan 2004-12-22
	 * @since 1.0
	 */
	public static final Calendar string2Calendar(String cal) {
		return string2Calendar(null, cal);
	}

	/**
	 * 取得指定年指定月的天數
	 * 
	 * @param year
	 *            int
	 * @param month
	 *            int
	 * @return int
	 * @author Jason 2004-8-9
	 * @since 1.0
	 */
	public static final int getMonthDays(int year, int month) {
		if (month < 1 || month > 12) {
			throw new IllegalArgumentException("月份值輸入不正確");
		}

		switch (month) {
		case 1:
			return 31;
		case 2:
			if (year % 4 == 0 && (year % 100 != 0 || year % 400 == 0)) {
				return 29;
			} else {
				return 28;
			}
		case 3:
			return 31;
		case 4:
			return 30;
		case 5:
			return 31;
		case 6:
			return 30;
		case 7:
			return 31;
		case 8:
			return 31;
		case 9:
			return 30;
		case 10:
			return 31;
		case 11:
			return 30;
		case 12:
			return 31;
		}
		return 0;
	}

	/**
	 * 取得日期 sdate2-sdate1 的差值
	 * 
	 * @param sdate1
	 *            String
	 * @param sdate2
	 *            String
	 * @param format
	 *            String Date的format格式
	 * @param tz
	 *            TimeZone
	 * @return int 取得日期 sdate2-sdate1 的差值
	 * @author Jason 2004-8-9
	 * @since 1.0
	 */
	public static int getDaysDiff(String sdate1, String sdate2, String format,
			TimeZone tz) {
		java.util.Date date1 = string2Timestamp(format, sdate1);
		java.util.Date date2 = string2Timestamp(format, sdate2);

		Calendar cal1 = null;
		Calendar cal2 = null;

		if (tz == null) {
			cal1 = Calendar.getInstance();
			cal2 = Calendar.getInstance();
		} else {
			cal1 = Calendar.getInstance(tz);
			cal2 = Calendar.getInstance(tz);
		}

		// different date might have different offset
		cal1.setTime(date1);
		long ldate1 = date1.getTime() + cal1.get(Calendar.ZONE_OFFSET)
				+ cal1.get(Calendar.DST_OFFSET);

		cal2.setTime(date2);
		long ldate2 = date2.getTime() + cal2.get(Calendar.ZONE_OFFSET)
				+ cal2.get(Calendar.DST_OFFSET);

		// Use integer calculation, truncate the decimals
		int hr1 = (int) (ldate1 / 3600000); // 60*60*1000
		int hr2 = (int) (ldate2 / 3600000);

		int days1 = hr1 / 24;
		int days2 = hr2 / 24;

		return days2 - days1;
		// int dateDiff = days2 - days1;
		// int weekOffset = (cal2.get(Calendar.DAY_OF_WEEK) -
		// cal1.get(Calendar.DAY_OF_WEEK)) < 0 ? 1 : 0;
		// int weekDiff = dateDiff / 7 + weekOffset;
		// int yearDiff = cal2.get(Calendar.YEAR) - cal1.get(Calendar.YEAR);
		// int monthDiff = yearDiff * 12 + cal2.get(Calendar.MONTH) -
		// cal1.get(Calendar.MONTH);
	}

	/**
	 * 將Date數據類型轉為Timestamp類型，時間是0點
	 * <p>
	 * <code>date2Timestamp</code>
	 * </p>
	 * 
	 * @param date
	 *            Date
	 * @return Timestamp
	 * @author Joe 2004-8-15
	 * @since 1.0
	 */
	public static Timestamp date2Timestamp(java.util.Date date) {
		if (date instanceof Timestamp) {
			return (Timestamp) date;
		}
		return new Timestamp(date.getTime());
	}

	/**
	 * 得到指定日期的第二天，且小時，分鐘，秒，毫秒都是0，如：2005-04-09 00:00:00.0
	 * <p>
	 * <code>getNextDayTimestamp</code>
	 * </p>
	 * 
	 * @param date
	 *            Date
	 * @return Timestamp
	 * @author Joe 2004-8-15
	 * @since 1.0
	 */
	public static Timestamp getNextDayTimestamp(java.util.Date date) {
		Calendar cal = null;

		if (date != null) {
			cal = Calendar.getInstance();
			cal.setTime(date);
		}

		cal.add(Calendar.DAY_OF_YEAR, 1);
		cal.set(Calendar.HOUR_OF_DAY, 0);
		cal.set(Calendar.MINUTE, 0);
		cal.set(Calendar.SECOND, 0);
		cal.set(Calendar.MILLISECOND, 0);

		return new Timestamp(cal.getTimeInMillis());
	}

	public static Timestamp getNextMonthTimestamp(java.util.Date date) {
		Calendar cal = null;

		if (date != null) {
			cal = Calendar.getInstance();
			cal.setTime(date);
		}

		cal.add(Calendar.MONTH, 1);
		cal.set(Calendar.HOUR_OF_DAY, 0);
		cal.set(Calendar.MINUTE, 0);
		cal.set(Calendar.SECOND, 0);
		cal.set(Calendar.MILLISECOND, 0);

		return new Timestamp(cal.getTimeInMillis());
	}

	public static Timestamp getNextMonthTimestamp(Calendar cal) {
		cal.add(Calendar.MONTH, 1);
		cal.set(Calendar.HOUR_OF_DAY, 0);
		cal.set(Calendar.MINUTE, 0);
		cal.set(Calendar.SECOND, 0);
		cal.set(Calendar.MILLISECOND, 0);

		return new Timestamp(cal.getTimeInMillis());
	}

	/**
	 * 取得系統日期的第二天的開始時間，如：2005-04-09 00:00:00.0
	 * <p>
	 * <code>getNextDayTimestamp</code>
	 * </p>
	 * 
	 * @return
	 * @author Jason 2005-4-8
	 * @since 1.0
	 */
	public static Timestamp getNextDayTimestamp() {
		return getNextDayTimestamp(getCurrentTimestamp());
	}


	/**
	 * 返回一個 2007/10/18 11:22:33:444 類型的當前時間字符串，每取一次暫停 50ms,以防止獲取重復值
	 * 
	 * @return
	 * @throws InterruptedException
	 */
	public static String getCurrentDateStringWithMilliSecondWithoutDuplicate() {
		try {
			Thread.sleep(50);
		} catch (InterruptedException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}

		Calendar calendar = Calendar.getInstance();

		String currentDateString = calendar.get(Calendar.YEAR) + "/"
				+ (calendar.get(Calendar.MONTH) + 1) + "/"
				+ calendar.get(Calendar.DATE) + " "
				+ calendar.get(Calendar.HOUR) + ":"
				+ calendar.get(Calendar.MINUTE) + ":"
				+ calendar.get(Calendar.SECOND) + ":"
				+ calendar.get(Calendar.MILLISECOND);

		return currentDateString;
	}

	/**
	 * 返回一個 2007/10/18 11:22:33:444 類型的當前時間字符串，每取一次暫停 50ms,以防止獲取重復值
	 * 
	 * @return
	 * @throws InterruptedException
	 */
	public static String getCurrentDateStringWithMilliSecondWithoutDuplicateByDate(
			String date) {
		try {
			Thread.sleep(50);
		} catch (InterruptedException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}

		Calendar calendar = Calendar.getInstance();

		String currentDateString = date + " " + calendar.get(Calendar.HOUR)
				+ ":" + calendar.get(Calendar.MINUTE) + ":"
				+ calendar.get(Calendar.SECOND) + ":"
				+ calendar.get(Calendar.MILLISECOND);

		return currentDateString;
	}
	/**
         * 科学计数法转换普通字符
         *
         * @param specialStr
         * @return
         */    
        public static String hexadecimalConversion(String specialStr) {
            try {
                if (StringUtils.isNotEmpty(specialStr)) {
                    BigDecimal db = new BigDecimal(specialStr);
                    return db.toPlainString();
                }
            } catch (NumberFormatException nfx) {
                return specialStr;
            }
            return "";
	}
        /**
         * 截取字符串
         * @param sub
         * @return
         */
	public static String subString(String sub){
	    String substring = sub.substring(0, sub.length()-2);
	    return substring;
	}
	/**
         * 获取当前季度
         * @return
         */
        public static String getQuantely(){
            Calendar cal = Calendar.getInstance();
            String quanter = "";
            int currentYear  = cal.get(Calendar.YEAR);
            int currentMonth  = cal.get(Calendar.MONTH )+1;
            if (currentMonth >= 1 && currentMonth <= 3)
                quanter = currentYear + "" + 3;
            else if(currentMonth >= 4 && currentMonth <= 6)
                quanter = currentYear + "" + 4;
            else if (currentMonth >= 7 && currentMonth <= 9) 
                quanter = currentYear + "" + 1;
            else if (currentMonth >= 10 && currentMonth <= 12) 
                quanter = currentYear + "" + 2;
            return quanter;
        }

}