package com.ycl.common.util;

import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.time.LocalDateTime;
import java.time.ZoneId;
import java.time.ZonedDateTime;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;
import java.util.TimeZone;

public class DateUtil {

    /**
     * 获取两日期之间间隔的天数
     *
     * @param smdate 较小的时间
     * @param bdate  较大的时间
     * @return 相差天数
     */
    public static int daysBetween(Date smdate, Date bdate) {
        long between_days = 0;
        try {
            SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
            smdate = sdf.parse(sdf.format(smdate));
            bdate = sdf.parse(sdf.format(bdate));
            Calendar cal = Calendar.getInstance();
            cal.setTime(smdate);
            long time1 = cal.getTimeInMillis();
            cal.setTime(bdate);
            long time2 = cal.getTimeInMillis();
            between_days = (time2 - time1) / (1000 * 3600 * 24);
        } catch (ParseException e) {
            e.printStackTrace();
        }

        return Integer.parseInt(String.valueOf(between_days));
    }

    public static boolean isBetween(Date date, Date startDate, Date endDate) {

        try {

            SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
            startDate = sdf.parse(sdf.format(startDate));
            endDate = sdf.parse(sdf.format(endDate));
            date = sdf.parse(sdf.format(date));

            Calendar cal = Calendar.getInstance();

            cal.setTime(date);
            long time0 = cal.getTimeInMillis();
            cal.setTime(startDate);
            long time1 = cal.getTimeInMillis();
            cal.setTime(endDate);
            long time2 = cal.getTimeInMillis();

            if (time0 > time1 && time0 <= time2)
                return true;

        } catch (ParseException e) {
            e.printStackTrace();
        }
        return false;

    }

    public static long DifferMillis(Date sDate, Date eDate) {
        try {
            SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
            sDate = sdf.parse(sdf.format(sDate));
            eDate = sdf.parse(sdf.format(eDate));
            Calendar cal = Calendar.getInstance();
            cal.setTime(sDate);
            long time1 = cal.getTimeInMillis();
            cal.setTime(eDate);
            long time2 = cal.getTimeInMillis();
            return Math.abs(time1 - time2);
        } catch (ParseException e) {
            e.printStackTrace();
        }

        return -1L;
    }

    public static long DifferSeconds(Date sDate, Date eDate) {

        return DifferMillis(sDate, eDate) / 1000;
    }

    /**
     * 相差分钟数
     *
     * @param sDate
     * @param eDate
     * @return
     */
    public static long DifferMinutes(Date sDate, Date eDate) {

        return Long.parseLong(String.valueOf(DifferMillis(sDate, eDate)
                / (1000 * 60)));
    }

    public static String getNowDate(String format) {
        return new SimpleDateFormat(format).format(new Date());
    }

    public static String getDateString(Date date, String format) {
        return new SimpleDateFormat(format).format(date);
    }

    public static Date parse(String date, String format) {

        try {
            return new SimpleDateFormat(format).parse(date);
        } catch (ParseException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        return null;
    }

    public static boolean nowTimeBetween(String beginTimeStr, String endTimeStr)
            throws ParseException {
        SimpleDateFormat dateFormat = new SimpleDateFormat("hh:mm:ss");
        Long beginTime = dateFormat.parse(beginTimeStr).getTime();
        Long endTime = dateFormat.parse(endTimeStr).getTime();
        Long nowTime = dateFormat.parse(dateFormat.format(new Date()))
                .getTime();
        if (nowTime >= beginTime && nowTime <= endTime) {
            return true;
        }
        return false;
    }

    @SuppressWarnings("static-access")
    public static Date addDate(Date date, int days) {
        Calendar calendar = new GregorianCalendar();
        calendar.setTime(date);
        calendar.add(calendar.DATE, days);// 把日期往后增加一天.整数往后推,负数往前移动
        return calendar.getTime(); // 这个时间就是日期往后推一天的结果
    }

    @SuppressWarnings("static-access")
    public static Date addHour(Date date, int hour) {
        Calendar calendar = new GregorianCalendar();
        calendar.setTime(date);
        calendar.add(calendar.HOUR, hour);// 把日期往后增加一天.整数往后推,负数往前移动
        return calendar.getTime(); // 这个时间就是日期往后推一天的结果
    }

    @SuppressWarnings("static-access")
    public static Date addMinute(Date date, int minute) {
        Calendar calendar = new GregorianCalendar();
        calendar.setTime(date);
        calendar.add(calendar.MINUTE, minute);// 把日期往后增加一天.整数往后推,负数往前移动
        return calendar.getTime(); // 这个时间就是日期往后推一天的结果
    }

    @SuppressWarnings("static-access")
    public static Date addSecond(Date date, int second) {
        Calendar calendar = new GregorianCalendar();
        calendar.setTime(date);
        calendar.add(calendar.SECOND, second);// 把日期往后增加一天.整数往后推,负数往前移动
        return calendar.getTime(); // 这个时间就是日期往后推一天的结果
    }

    /**
     * 统计两个时间的时间差
     * two-one
     * 相差几秒几毫秒
     */
    public static String getDistanceDateTime(Date one, Date two) {
        long day = 0;//天数差
        long hour = 0;//小时数差
        long min = 0;//分钟数差
        long second = 0;//秒数差
        long diff = 0;//毫秒差
        String result = "";
        final Calendar c = Calendar.getInstance();
        c.setTimeZone(TimeZone.getTimeZone("GMT+8:00"));
        c.setTime(one);
        long time1 = one.getTime();
        long time2 = two.getTime();
        diff = time2 - time1;
        day = diff / (24 * 60 * 60 * 1000);
        hour = (diff / (60 * 60 * 1000) - day * 24);
        min = ((diff / (60 * 1000)) - day * 24 * 60 - hour * 60);
        second = diff / 1000;
        // System.out.println("day="+day+" hour="+hour+" min="+min+" ss="+second%60+" SSS="+diff%1000);
        String daystr = day % 30 + "天";
        String hourStr = hour % 24 + "小时";
        String minStr = min % 60 + "分";
        String secondStr = second % 60 + "秒";
        if (day != 0) {
            result = result + daystr;
        }
        if (hour != 0) {
            result = result + hourStr;
        }
        if (min != 0) {
            if (day == 0) {
                result = result + minStr;
            }
        }
        if (second != 0) {
            if (day == 0 && hour == 0) {
                result = result + secondStr;
            }
        }
        return result;
    }

    public static Date fromLocalDateTime(LocalDateTime ldt) {
        ZoneId zoneId = ZoneId.systemDefault();
        ZonedDateTime zdt = ldt.atZone(zoneId);
        Date date = Date.from(zdt.toInstant());
        return date;
    }

    public static void main(String[] args) throws ParseException {

        Calendar calendar = Calendar.getInstance();
        calendar.add(Calendar.DATE, -1);
        calendar.add(Calendar.HOUR, -6);
        calendar.add(Calendar.MINUTE, -5);
        calendar.add(Calendar.SECOND, -4);
        calendar.add(Calendar.MILLISECOND, -30);
        Date date = calendar.getTime();
        Date today = new Date();
        // System.out.println(getDistanceDateTime(date,today));
    }
}