/**
 * 时间、日期工具类
 * Created by fanji on 2017/7/19.
 */

public class DateTimeUtil {

        static SimpleDateFormat format;

        /** 日期格式：yyyy-MM-dd HH:mm:ss **/
        public static final String DF_YYYY_MM_DD_HH_MM_SS = "yyyy-MM-dd HH:mm:ss";

        /** 日期格式：yyyy-MM-dd HH:mm **/
        public static final String DF_YYYY_MM_DD_HH_MM = "yyyy-MM-dd HH:mm";

        /** 日期格式：yyyy-MM-dd **/
        public static final String DF_YYYY_MM_DD = "yyyy-MM-dd";

        /** 日期格式：HH:mm:ss **/
        public static final String DF_HH_MM_SS = "HH:mm:ss";

        /** 日期格式：HH:mm **/
        public static final String DF_HH_MM = "HH:mm";

        private final static long minute = 60 * 1000;// 1分钟
        private final static long hour = 60 * minute;// 1小时
        private final static long day = 24 * hour;// 1天
        private final static long month = 31 * day;// 月
        private final static long year = 12 * month;// 年


        public DateTimeUtil() {

        }

        /**
         * 将日期格式化成友好的字符串：几分钟前、几小时前、几天前、几月前、几年前、刚刚
         *
         * @param date
         * @return
         */
        public static String formatFriendly(Date date) {
            if (date == null) {
                return null;
            }
            long diff = new Date().getTime() - date.getTime();
            long r = 0;
            if (diff > year) {
                r = (diff / year);
                return r + "年前";
            }
            if (diff > month) {
                r = (diff / month);
                return r + "个月前";
            }
            if (diff > day) {
                r = (diff / day);
                return r + "天前";
            }
            if (diff > hour) {
                r = (diff / hour);
                return r + "个小时前";
            }
            if (diff > minute) {
                r = (diff / minute);
                return r + "分钟前";
            }
            return "刚刚";
        }

        /**
         * 将日期以yyyy-MM-dd HH:mm:ss格式化
         *
         * @param dateL
         *            日期
         * @return
         */
        @SuppressLint("SimpleDateFormat")
        public static String formatDateTime(long dateL) {
            SimpleDateFormat sdf = new SimpleDateFormat(DF_YYYY_MM_DD_HH_MM_SS);
            Date date = new Date(dateL);
            return sdf.format(date);
        }

        /**
         * 将日期以yyyy-MM-dd HH:mm:ss格式化
         *
         * @param dateL
         *            日期
         * @return
         */
        @SuppressLint("SimpleDateFormat")
        public static String formatDateTime(long dateL, String formater) {
            SimpleDateFormat sdf = new SimpleDateFormat(formater);
            return sdf.format(new Date(dateL));
        }



    /**
     * 将日期以yyyy-MM-dd HH:mm:ss格式化
     * @param date 日期
     * @param formater
     * @return
     */
    @SuppressLint("SimpleDateFormat")
        public static String formatDateTime(Date date, String formater) {
            SimpleDateFormat sdf = new SimpleDateFormat(formater);
            return sdf.format(date);
        }

        /**
         * 将日期字符串转成日期
         *
         * @param strDate
         *            字符串日期
         * @return java.util.date日期类型
         */
        @SuppressLint("SimpleDateFormat")
        public static Date parseDate(String strDate) {
            DateFormat dateFormat = new SimpleDateFormat(DF_YYYY_MM_DD_HH_MM_SS);
            Date returnDate = null;
            try {
                returnDate = dateFormat.parse(strDate);
            } catch (ParseException e) {

            }
            return returnDate;

        }

        /**
         * 获取系统当前日期
         *
         * @return
         */
        public static Date gainCurrentDate() {
            return new Date();
        }

        /**
         * 验证日期是否比当前日期早
         *
         * @param target1
         *            比较时间1
         * @param target2
         *            比较时间2
         * @return true 则代表target1比target2晚或等于target2，否则比target2早
         */
        public static boolean compareDate(Date target1, Date target2) {
            boolean flag = false;
            try {
                String target1DateTime = formatDateTime(target1, DF_YYYY_MM_DD_HH_MM_SS);
                String target2DateTime = formatDateTime(target2, DF_YYYY_MM_DD_HH_MM_SS);
                if (target1DateTime.compareTo(target2DateTime) <= 0) {
                    flag = true;
                }
            } catch (Exception e) {
                System.out.println("比较失败，原因：" + e.getMessage());
            }
            return flag;
        }

        /**
         * 对日期进行增加操作
         *
         * @param target
         *            需要进行运算的日期
         * @param hour
         *            小时
         * @return
         */
        public static Date addDateTime(Date target, double hour) {
            if (null == target || hour < 0) {
                return target;
            }

            return new Date(target.getTime() + (long) (hour * 60 * 60 * 1000));
        }

        /**
         * 对日期进行相减操作
         *
         * @param target
         *            需要进行运算的日期
         * @param hour
         *            小时
         * @return
         */
        public static Date subDateTime(Date target, double hour) {
            if (null == target || hour < 0) {
                return target;
            }

            return new Date(target.getTime() - (long) (hour * 60 * 60 * 1000));
        }

        /** 获取系统时间的方法:月/日 时:分:秒 */
        public static String getFormateDate() {
            Calendar calendar = Calendar.getInstance();
            int month = (calendar.get(Calendar.MONTH) + 1);
            int day = calendar.get(Calendar.DAY_OF_MONTH);
            int hour = calendar.get(Calendar.HOUR_OF_DAY);
            int minute = calendar.get(Calendar.MINUTE);
            int second = calendar.get(Calendar.SECOND);

            String systemTime = (month < 10 ? "0" + month : month) + "/" + (day < 10 ? "0" + day : day) + "  " + (hour < 10 ? "0" + hour : hour) + ":" + (minute < 10 ? "0" + minute : minute) + ":" + (second < 10 ? "0" + second : second);
            return systemTime;
        }

        /** 获取系统时间的方法:时:分:秒 */
        public static String getHourAndMinute() {
            Calendar calendar = Calendar.getInstance();
            int hour = calendar.get(Calendar.HOUR_OF_DAY);
            int minute = calendar.get(Calendar.MINUTE);
            return (hour < 10 ? "0" + hour : hour) + ":" + (minute < 10 ? "0" + minute : minute);
        }

        /** 获取系统时间的方法:时 */
        public static String getHour() {
            Calendar calendar = Calendar.getInstance();
            int hour = calendar.get(Calendar.HOUR_OF_DAY);
            return ((hour < 10 ? "0" + hour : hour) + "");
        }

        /**
         * 将2017-07-10 00:00:00 换2017-07-10
         *
         * @param strDate
         * @return
         */
        public static String strFormatStr(String strDate) {
            if (strDate.equals("")) {
                return "";
            }
            return dateToStr(strToDate(strDate));
        }

        /**
         * 2015-01-07 15:05:34
         *
         * @param strDate
         * @return
         */
        @SuppressLint("SimpleDateFormat")
        public static Date strToDateHHMMSS(String strDate) {
            SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
            ParsePosition pos = new ParsePosition(0);
            Date strtodate = formatter.parse(strDate, pos);
            return strtodate;
        }

        /**
         * 2015-01-07
         *
         * @param strDate
         * @return
         */
        @SuppressLint("SimpleDateFormat")
        public static Date strToDate(String strDate) {
            SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd");
            ParsePosition pos = new ParsePosition(0);
            Date strtodate = formatter.parse(strDate, pos);
            return strtodate;
        }

        /**
         * 2015.01.07
         *
         * @param strDate
         * @return
         */
        @SuppressLint("SimpleDateFormat")
        public static Date strToDateDorp(String strDate) {
            SimpleDateFormat formatter = new SimpleDateFormat("yyyy.MM.dd");
            ParsePosition pos = new ParsePosition(0);
            Date strtodate = formatter.parse(strDate, pos);
            return strtodate;
        }

        @SuppressLint("SimpleDateFormat")
        public static String dateToStr(java.util.Date dateDate) {
            SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd");
            String dateString = formatter.format(dateDate);
            return dateString;
        }

        /** 传入一个String转化为long */
        @SuppressLint("SimpleDateFormat")
        public static Long stringParserLong(String param) throws ParseException {
            format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
            return format.parse(param).getTime();
        }

        /** 当前时间转换为long */
        @SuppressLint("SimpleDateFormat")
        public static Long currentDateParserLong() throws ParseException {
            format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
            return format.parse(format.format(Calendar.getInstance().getTime())).getTime();
        }

        /** 当前时间 如: 2013-04-22 10:37:00 */
        @SuppressLint("SimpleDateFormat")
        public static String getCurrentDate() {
            format = new SimpleDateFormat("yyyy-MM-dd HH:mm");
            return format.format(Calendar.getInstance().getTime());
        }

        /** 当前时间 如: 10:37 */
        @SuppressLint("SimpleDateFormat")
        public static String getCurrentDateHHMM() {
            format = new SimpleDateFormat("HH:mm");
            return format.format(Calendar.getInstance().getTime());
        }

        /**
         * 当前时间 如: 10:37
         *
         * @throws ParseException
         */
        @SuppressLint("SimpleDateFormat")
        public static String getCurrentDateHHMMSS() {
            format = new SimpleDateFormat("HH:mm:ss");
            return format.format(Calendar.getInstance().getTime());
        }

        /** 当前时间 如: 20130422 */
        @SuppressLint("SimpleDateFormat")
        public static String getCurrentDateString() {
            format = new SimpleDateFormat("yyyyMMddHHmm");
            return format.format(Calendar.getInstance().getTime());
        }

        /** 当前时间 如: 2013-04-22 */
        @SuppressLint("SimpleDateFormat")
        public static String getCurrentTime() {
            format = new SimpleDateFormat("yyyy-MM-dd");
            return format.format(Calendar.getInstance().getTime());
        }

        @SuppressLint("SimpleDateFormat")
        public static String getSWAHDate() {
            SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
            return format.format(Calendar.getInstance().getTime());
        }

        @SuppressLint("SimpleDateFormat")
        public static Long stringToLongD(String param) throws ParseException {
            SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd");
            return format.parse(param.substring(0, param.length() - 4)).getTime();
        }

        @SuppressLint("SimpleDateFormat")
        public static Long stringToLong(String param) throws ParseException {
            SimpleDateFormat format = new SimpleDateFormat("yyyyMMddHHmm");
            return format.parse(param).getTime();
        }

        /**
         * 获取两个日期之间的间隔天数
         *
         * @return
         */
        @SuppressLint("SimpleDateFormat")
        public static int getGapCount(Date startDate, Date endDate) {
            Calendar fromCalendar = Calendar.getInstance();
            fromCalendar.setTime(startDate);
            fromCalendar.set(Calendar.HOUR_OF_DAY, 0);
            fromCalendar.set(Calendar.MINUTE, 0);
            fromCalendar.set(Calendar.SECOND, 0);
            fromCalendar.set(Calendar.MILLISECOND, 0);

            Calendar toCalendar = Calendar.getInstance();
            toCalendar.setTime(endDate);
            toCalendar.set(Calendar.HOUR_OF_DAY, 0);
            toCalendar.set(Calendar.MINUTE, 0);
            toCalendar.set(Calendar.SECOND, 0);
            toCalendar.set(Calendar.MILLISECOND, 0);

            return (int) ((toCalendar.getTime().getTime() - fromCalendar.getTime().getTime()) / (1000 * 60 * 60 * 24));
        }

        /**
         * 日期转换成Java字符串
         *
         * @param date
         * @return str
         */
        @SuppressLint("SimpleDateFormat")
        public static String DateToStr(Date date) {

            SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
            String str = format.format(date);
            return str;
        }

        /**
         * 字符串转换成日期
         *
         * @param str
         * @return date
         */
        @SuppressLint("SimpleDateFormat")
        public static Date StrToDate(String str) {

            SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd");
            Date date = null;
            try {
                date = format.parse(str);
            } catch (ParseException e) {
                e.printStackTrace();
            }
            return date;
        }

        /**
         * 字符串转换成日期
         *
         * @param str
         * @return date
         */
        @SuppressLint("SimpleDateFormat")
        public static Date StrToDateDrop(String str) {

            SimpleDateFormat format = new SimpleDateFormat("yyyy.MM.dd");
            Date date = null;
            try {
                date = format.parse(str);
            } catch (ParseException e) {
                e.printStackTrace();
            }
            return date;
        }

        /**
         *
         * @param time
         * @return
         */
        @SuppressLint("SimpleDateFormat")
        public static long getLongTime(String time) {
            long ct = 0;
            try {
                format = new SimpleDateFormat("HH:mm:ss");
                ct = format.parse(time).getTime();
            } catch (Exception e) {
                e.printStackTrace();
            }
            return ct;
        }

        /**
         * 判断两日期是否同一天
         *
         * @param str1
         * @param str2
         * @return
         */
        @SuppressLint("SimpleDateFormat")
        public static boolean isSameDay(String str1, String str2) {

            Date day1 = null, day2 = null;
            day1 = DateTimeUtil.strToDate(str1);
            day2 = DateTimeUtil.strToDate(str2);

            SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");

            String ds1 = sdf.format(day1);

            String ds2 = sdf.format(day2);

            if (ds1.equals(ds2)) {
                return true;
            } else {
                return false;
            }

        }

        /**
         * 获取两个日期的时间差
         */
        @SuppressLint("SimpleDateFormat")
        public static int getTimeInterval(String date) {
            SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
            int interval = 0;
            try {
                Date currentTime = new Date();// 获取现在的时间
                Date beginTime = dateFormat.parse(date);
                interval = (int) ((beginTime.getTime() - currentTime.getTime()) / (1000));// 时间差
                // 单位秒
            } catch (ParseException e) {
                e.printStackTrace();
            }
            return interval;
        }

        /**
         * 获取两个日期的时间差 yyyy.MM.dd HH.mm.ss
         */
        @SuppressLint("SimpleDateFormat")
        public static int getInterval(String bDate, String eDate) {
            SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy.MM.dd");
            int interval = 0;
            try {
                Date currentTime = dateFormat.parse(eDate);// 获取现在的时间
                Date beginTime = dateFormat.parse(bDate);
                interval = (int) ((beginTime.getTime() - currentTime.getTime()));// 时间差
                // 单位秒
            } catch (ParseException e) {
                e.printStackTrace();
            }
            return interval;
        }

    /**
     * 两个时间之差 求出一个long Time
     * @param date
     * @return
     */
    @SuppressLint("SimpleDateFormat")
        public static long getTime(String date) {

            DateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
            long diff = 0;
            try {
                Date currentTime = new Date();// 获取现在的时间
                Date getdate = df.parse(date);
                diff = getdate.getTime() - currentTime.getTime();

            } catch (Exception e) {
            }
            return diff;
        }


    /**
     * 日期转换成Java字符串
     * @param DATE1
     * @param DATE2
     * @return
     */
    @SuppressLint("SimpleDateFormat")
        public static int compare_date(String DATE1, String DATE2) {
            DateFormat df = new SimpleDateFormat("yyyy-MM-dd");
            try {
                Date dt1 = df.parse(DATE1);
                Date dt2 = df.parse(DATE2);
                if (dt1.getTime() >= dt2.getTime()) {
                    return 1;
                } else if (dt1.getTime() < dt2.getTime()) {
                    return -1;
                } else {
                    return 0;
                }
            } catch (Exception exception) {
                exception.printStackTrace();
            }
            return 0;
        }

        /**
         * 传入时间 算出星期几
         *
         * @param str
         *            2014年1月3日
         * @param days
         *            1:2014年1月4日 类推
         * @return
         */
        @SuppressLint("SimpleDateFormat")
        public static String formatDate(String str, int days) {

            String dateStr = "";
            try {
                DateFormat df = DateFormat.getDateInstance(DateFormat.LONG);
                Date date = df.parse(str);
                SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd");
                Calendar c = Calendar.getInstance();
                Date d = dateFormat.parse(dateFormat.format(date));
                c.setTime(d);
                c.add(Calendar.DAY_OF_MONTH, days);
                switch (c.get(Calendar.DAY_OF_WEEK) - 1) {
                    case 0:
                        dateStr = "周日";
                        break;
                    case 1:
                        dateStr = "周一";
                        break;
                    case 2:
                        dateStr = "周二";
                        break;
                    case 3:
                        dateStr = "周三";
                        break;
                    case 4:
                        dateStr = "周四";
                        break;
                    case 5:
                        dateStr = "周五";
                        break;
                    case 6:
                        dateStr = "周六";
                        break;
                    default:
                        break;
                }
            } catch (Exception e) {
                e.printStackTrace();
            }

            return dateStr;
        }
}