package com.yeejoin.amos.boot.biz.common.utils;

import org.apache.commons.lang3.StringUtils;

import java.text.ParseException;
import java.text.ParsePosition;
import java.text.SimpleDateFormat;
import java.time.LocalDate;
import java.util.*;

/**
 * @description: 时间工具类
 * @author: DELL
 * @create: 2021-05-26
 **/
public class DateUtils {

    public static final String DATE_TIME_PATTERN = "yyyy-MM-dd HH:mm:ss";
    public static final String MINUTE_PATTERN = "yyyy-MM-dd HH:mm";
    public static final String HOUR_PATTERN = "yyyy-MM-dd HH:mm:ss";
    public static final String DATE_PATTERN = "yyyy-MM-dd";
    public static final String MONTH_PATTERN = "yyyy-MM";
    public static final String YEAR_PATTERN = "yyyy";
    public static final String MINUTE_ONLY_PATTERN = "mm";
    public static final String HOUR_ONLY_PATTERN = "HH";

    /**
     * 获取  当前年、半年、季度、月、日、小时 开始结束时间
     */
    private static final SimpleDateFormat shortSdf = new SimpleDateFormat("yyyy-MM-dd");
    private static final SimpleDateFormat longHourSdf = new SimpleDateFormat("yyyy-MM-dd HH");
    private static final SimpleDateFormat longSdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
    private static final Calendar calendar = Calendar.getInstance();
    private static final SimpleDateFormat shortDateNew = new SimpleDateFormat("yyyy/M/d");

    /**
     * 获取时分秒
     */
    private static final SimpleDateFormat timeSdf = new SimpleDateFormat("HH:mm:ss");

    /**
     * 获取当前时间
     *
     * @return 当前日期时间
     */
    public static Date getDateNow() {
        return new Date();
    }

    /**
     * 获取当前时间
     *
     * @return 当前日期时间
     */
    public static String getDateNowString() {
        return convertDateToString(getDateNow(), DATE_TIME_PATTERN);
    }

    public static String date2LongStr(Date dateDate) {
        SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        String dateString = formatter.format(dateDate);
        return dateString;
    }

    /**
     * 获取现在日期字符串
     *
     * @return返回字符串格式 yyyy-MM-dd
     */
    public static String getDateNowShortStr() {
        Date currentTime = new Date();
        SimpleDateFormat formatter = new SimpleDateFormat(DATE_PATTERN);
        String dateString = formatter.format(currentTime);
        return dateString;
    }

    /**
     * 将日期转换为字符串
     *
     * @param date   日期
     * @param format 字符串格式
     * @return 日期字符串
     */
    public static String convertDateToString(Date date, String format) {
        SimpleDateFormat df = null;
        String returnValue = "";
        if (null != date) {
            df = new SimpleDateFormat(format);
            returnValue = df.format(date);
        }
        return returnValue;
    }

    /**
     * 获取当前时间任意
     *
     * @return
     */
    public static String get(int field) {
        return String.valueOf(getCalendar().get(field));
    }

    /**
     * 当前日历，这里用中国时间表示
     *
     * @return 以当地时区表示的系统当前日历
     */
    public static Calendar getCalendar() {
        return Calendar.getInstance();
    }

    /**
     * 日期相加减天数
     *
     * @param date        如果为Null，则为当前时间
     * @param days        加减天数
     * @param includeTime 是否包括时分秒,true表示包含
     * @return
     * @throws ParseException
     */
    public static Date dateAdd(Date date, int days, boolean includeTime) throws ParseException {
        if (date == null) {
            date = new Date();
        }
        if (!includeTime) {
            SimpleDateFormat sdf = new SimpleDateFormat(DateUtils.DATE_PATTERN);
            date = sdf.parse(sdf.format(date));
        }
        Calendar cal = Calendar.getInstance();
        cal.setTime(date);
        cal.add(Calendar.DATE, days);
        return cal.getTime();
    }


    /**
     * 将长时间格式字符串转换为时间 yyyy-MM-dd HH:mm:ss
     *
     * @param strDate
     * @return
     */
    public static Date longStr2Date(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;
    }

    /**
     * 时间格式化成字符串
     *
     * @param date    Date
     * @param pattern StrUtils.DATE_TIME_PATTERN || StrUtils.DATE_PATTERN， 如果为空，则为yyyy-MM-dd
     * @return
     * @throws ParseException
     */
    public static String dateFormat(Date date, String pattern) throws ParseException {
        if (StringUtils.isEmpty(pattern)) {
            pattern = DateUtils.DATE_PATTERN;
        }
        SimpleDateFormat sdf = new SimpleDateFormat(pattern);
        return sdf.format(date);
    }

    /**
     * 暂时不操作原生截取做下转换
     *
     * @param str
     * @return
     * @throws ParseException
     */
    public static String dateToString(String str) {
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
        Date parse = null;
        String content = null;
        try {
            parse = sdf.parse(str);
            content = DateUtils.dateFormat(parse, DateUtils.DATE_PATTERN);
        } catch (ParseException e) {
            e.printStackTrace();
        }
        return content;
    }


    /*
     * 将时间戳转换为时间
     */
    public static String stampToDate(Long s, String format) {
        String res;
        SimpleDateFormat simpleDateFormat = new SimpleDateFormat(format);
        Date date = new Date(s);
        res = simpleDateFormat.format(date);
        return res;
    }

    /**
     * 字符串解析成时间对象
     *
     * @param dateTimeString String
     * @param pattern        StrUtils.DATE_TIME_PATTERN || StrUtils.DATE_PATTERN，如果为空，则为yyyy-MM-dd
     * @return
     * @throws ParseException
     */
    public static Date dateParse(String dateTimeString, String pattern) throws ParseException {
        if (StringUtils.isEmpty(pattern)) {
            pattern = DateUtils.DATE_PATTERN;
        }
        SimpleDateFormat sdf = new SimpleDateFormat(pattern);
        return sdf.parse(dateTimeString);
    }

    /**
     * 将日期时间格式成只有日期的字符串（可以直接使用dateFormat，Pattern为Null进行格式化）
     *
     * @param dateTime Date
     * @return
     * @throws ParseException
     */
    public static String dateTimeToDateString(Date dateTime) throws ParseException {
        String dateTimeString = DateUtils.dateFormat(dateTime, DateUtils.DATE_TIME_PATTERN);
        return dateTimeString.substring(0, 10);
    }

    /**
     * 当时、分、秒为00:00:00时，将日期时间格式成只有日期的字符串，
     * 当时、分、秒不为00:00:00时，直接返回
     *
     * @param dateTime Date
     * @return
     * @throws ParseException
     */
    public static String dateTimeToDateStringIfTimeEndZero(Date dateTime) throws ParseException {
        String dateTimeString = DateUtils.dateFormat(dateTime, DateUtils.DATE_TIME_PATTERN);
        if (dateTimeString.endsWith("00:00:00")) {
            return dateTimeString.substring(0, 10);
        } else {
            return dateTimeString;
        }
    }

    /**
     * 将日期时间格式成日期对象，和dateParse互用
     *
     * @param dateTime Date
     * @return Date
     * @throws ParseException
     */
    public static Date dateTimeToDate(Date dateTime) throws ParseException {
        Calendar cal = Calendar.getInstance();
        cal.setTime(dateTime);
        cal.set(Calendar.HOUR_OF_DAY, 0);
        cal.set(Calendar.MINUTE, 0);
        cal.set(Calendar.SECOND, 0);
        cal.set(Calendar.MILLISECOND, 0);
        return cal.getTime();
    }

    /**
     * 时间加减小时
     *
     * @param startDate 要处理的时间，Null则为当前时间
     * @param hours     加减的小时
     * @return Date
     */
    public static Date dateAddHours(Date startDate, int hours) {
        if (startDate == null) {
            startDate = new Date();
        }
        Calendar c = Calendar.getInstance();
        c.setTime(startDate);
        c.set(Calendar.HOUR, c.get(Calendar.HOUR) + hours);
        return c.getTime();
    }

    /**
     * 时间加减分钟
     *
     * @param startDate 要处理的时间，Null则为当前时间
     * @param minutes   加减的分钟
     * @return
     */
    public static Date dateAddMinutes(Date startDate, int minutes) {
        if (startDate == null) {
            startDate = new Date();
        }
        Calendar c = Calendar.getInstance();
        c.setTime(startDate);
        c.set(Calendar.MINUTE, c.get(Calendar.MINUTE) + minutes);
        return c.getTime();
    }

    /**
     * 时间加减秒数
     *
     * @param startDate 要处理的时间，Null则为当前时间
     * @param
     * @return
     */
    public static Date dateAddSeconds(Date startDate, int seconds) {
        if (startDate == null) {
            startDate = new Date();
        }
        Calendar c = Calendar.getInstance();
        c.setTime(startDate);
        c.set(Calendar.SECOND, c.get(Calendar.SECOND) + seconds);
        return c.getTime();
    }

    /**
     * 时间加减天数
     *
     * @param startDate 要处理的时间，Null则为当前时间
     * @param days      加减的天数
     * @return Date
     */
    public static Date dateAddDays(Date startDate, int days) {
        if (startDate == null) {
            startDate = new Date();
        }
        Calendar c = Calendar.getInstance();
        c.setTime(startDate);
        c.set(Calendar.DATE, c.get(Calendar.DATE) + days);
        return c.getTime();
    }

    /**
     * 时间加减月数
     *
     * @param startDate 要处理的时间，Null则为当前时间
     * @param months    加减的月数
     * @return Date
     */
    public static Date dateAddMonths(Date startDate, int months) {
        if (startDate == null) {
            startDate = new Date();
        }
        Calendar c = Calendar.getInstance();
        c.setTime(startDate);
        c.set(Calendar.MONTH, c.get(Calendar.MONTH) + months);
        return c.getTime();
    }

    /**
     * 时间加减年数
     *
     * @param startDate 要处理的时间，Null则为当前时间
     * @param years     加减的年数
     * @return Date
     */
    public static Date dateAddYears(Date startDate, int years) {
        if (startDate == null) {
            startDate = new Date();
        }
        Calendar c = Calendar.getInstance();
        c.setTime(startDate);
        c.set(Calendar.YEAR, c.get(Calendar.YEAR) + years);
        return c.getTime();
    }

    /**
     * 时间比较（如果myDate>compareDate返回1，<返回-1，相等返回0）
     *
     * @param myDate      时间
     * @param compareDate 要比较的时间
     * @return int
     */
    public static int dateCompare(Date myDate, Date compareDate) {
        Calendar myCal = Calendar.getInstance();
        Calendar compareCal = Calendar.getInstance();
        myCal.setTime(myDate);
        compareCal.setTime(compareDate);
        return myCal.compareTo(compareCal);
    }

    /**
     * 获取两个时间中最小的一个时间
     *
     * @param date
     * @param compareDate
     * @return
     */
    public static Date dateMin(Date date, Date compareDate) {
        if (date == null) {
            return compareDate;
        }
        if (compareDate == null) {
            return date;
        }
        if (1 == dateCompare(date, compareDate)) {
            return compareDate;
        } else if (-1 == dateCompare(date, compareDate)) {
            return date;
        }
        return date;
    }

    /**
     * 获取两个时间中最大的一个时间
     *
     * @param date
     * @param compareDate
     * @return
     */
    public static Date dateMax(Date date, Date compareDate) {
        if (date == null) {
            return compareDate;
        }
        if (compareDate == null) {
            return date;
        }
        if (1 == dateCompare(date, compareDate)) {
            return date;
        } else if (-1 == dateCompare(date, compareDate)) {
            return compareDate;
        }
        return date;
    }

    /**
     * 获取两个日期（不含时分秒）相差的天数，不包含今天
     *
     * @param startDate
     * @param endDate
     * @return
     * @throws ParseException
     */
    public static int dateBetween(Date startDate, Date endDate) throws ParseException {
        Date dateStart = dateParse(dateFormat(startDate, DATE_PATTERN), DATE_PATTERN);
        Date dateEnd = dateParse(dateFormat(endDate, DATE_PATTERN), DATE_PATTERN);
        return (int) ((dateEnd.getTime() - dateStart.getTime()) / 1000 / 60 / 60 / 24);
    }

    /**
     * 获取两个日期（不含时分秒）相差的天数，包含今天
     *
     * @param startDate
     * @param endDate
     * @return
     * @throws ParseException
     */
    public static int dateBetweenIncludeToday(Date startDate, Date endDate) throws ParseException {
        return dateBetween(startDate, endDate) + 1;
    }

    /**
     * 获取日期时间的年份，如2017-02-13，返回2017
     *
     * @param date
     * @return
     */
    public static int getYear(Date date) {
        Calendar cal = Calendar.getInstance();
        cal.setTime(date);
        return cal.get(Calendar.YEAR);
    }

    /**
     * 获取日期时间的月份，如2017年2月13日，返回2
     *
     * @param date
     * @return
     */
    public static int getMonth(Date date) {
        Calendar cal = Calendar.getInstance();
        cal.setTime(date);
        return cal.get(Calendar.MONTH) + 1;
    }

    /**
     * 获取日期时间的第几天（即返回日期的dd），如2017-02-13，返回13
     *
     * @param date
     * @return
     */
    public static int getDate(Date date) {
        Calendar cal = Calendar.getInstance();
        cal.setTime(date);
        return cal.get(Calendar.DATE);
    }

    /**
     * 获取日期时间当月的总天数，如2017-02-13，返回28
     *
     * @param date
     * @return
     */
    public static int getDaysOfMonth(Date date) {
        Calendar cal = Calendar.getInstance();
        cal.setTime(date);
        return cal.getActualMaximum(Calendar.DATE);
    }

    /**
     * 获取日期时间当年的总天数，如2017-02-13，返回2017年的总天数
     *
     * @param date
     * @return
     */
    public static int getDaysOfYear(Date date) {
        Calendar cal = Calendar.getInstance();
        cal.setTime(date);
        return cal.getActualMaximum(Calendar.DAY_OF_YEAR);
    }

    /**
     * 根据时间获取当月最大的日期
     * <li>2017-02-13，返回2017-02-28</li>
     * <li>2016-02-13，返回2016-02-29</li>
     * <li>2016-01-11，返回2016-01-31</li>
     *
     * @param date Date
     * @return
     * @throws Exception
     */
    public static Date maxDateOfMonth(Date date) throws Exception {
        Calendar cal = Calendar.getInstance();
        cal.setTime(date);
        int value = cal.getActualMaximum(Calendar.DATE);
        return dateParse(dateFormat(date, MONTH_PATTERN) + "-" + value, null);
    }

    /**
     * 根据时间获取当月最小的日期，也就是返回当月的1号日期对象
     *
     * @param date Date
     * @return
     * @throws Exception
     */
    public static Date minDateOfMonth(Date date) throws Exception {
        Calendar cal = Calendar.getInstance();
        cal.setTime(date);
        int value = cal.getActualMinimum(Calendar.DATE);
        return dateParse(dateFormat(date, MONTH_PATTERN) + "-" + value, null);
    }

    /**
     * 根据年月返回第一天
     *
     * @param yearParam
     * @param monthParam
     * @return
     */
    public static Date getFirstDayByMonth(int yearParam, int monthParam) {
        Calendar c = Calendar.getInstance(Locale.CHINA);
        c.set(yearParam, monthParam - 1, 1);
        try {
            Date date = shortSdf.parse(shortSdf.format(c.getTime()) + " 00:00:00");
            return date;
        } catch (Exception e) {
            e.printStackTrace();
        }
        return null;
    }

    /**
     * 获取某月的日期List
     *
     * @param yearParam
     * @param monthParam
     * @return
     */
    public static List<String> getDayByMonth(int yearParam, int monthParam) {
        List list = new ArrayList();
        Calendar aCalendar = Calendar.getInstance(Locale.CHINA);
        aCalendar.set(yearParam, monthParam - 1, 1);
        int year = aCalendar.get(Calendar.YEAR);//年份
        int month = aCalendar.get(Calendar.MONTH) + 1;//月份
        int day = aCalendar.getActualMaximum(Calendar.DATE);
        for (int i = 1; i <= day; i++) {

            list.add(year + "/" + month + "/" + i);
        }
        return list;
    }


    /**
     * 当前月的结束时间，即2012-01-31 23:59:59
     *
     * @return
     */
    public static Date getCurrentMonthEndTime(Date date) {
        Calendar c = Calendar.getInstance();
        c.setTime(date);
        Date now = null;
        c.set(Calendar.DATE, 1);
        c.add(Calendar.MONTH, 1);
        c.add(Calendar.DATE, -1);
        try {
            now = longSdf.parse(shortSdf.format(c.getTime()) + " 23:59:59");
        } catch (ParseException e) {
            e.printStackTrace();
        }
        return now;

    }

    public static void main(String[] args) throws Exception {
        /*System.out.println(dateTimeToDate(new Date()));
        System.out.println(dateParse("2017-02-04 14:58:20", null));
        System.out.println(dateTimeToDateStringIfTimeEndZero(new Date()));
        System.out.println(dateTimeToDateStringIfTimeEndZero(dateTimeToDate(new Date())));*/
        //System.out.println(dateBetween(dateParse("2017-01-30", null), dateParse("2017-02-01", null)));
        //System.out.println(dateBetweenIncludeToday(dateParse("2017-01-30", null), dateParse("2017-02-01", null)));
        System.out.println(getDate(dateParse("2017-01-17", null)));
        /*
        System.out.println(getDaysOfMonth(dateParse("2017-02-01", null)));
        System.out.println(getDaysOfYear(dateParse("2017-01-30", null)));*/
        //System.out.println(dateFormat(dateAddMonths(dateParse("2017-02-07", StrUtils.MONTH_PATTERN), -12), StrUtils
        // .MONTH_PATTERN));
        /*System.out.println(dateFormat(maxDateOfMonth(dateParse("2016-02", "yyyy-MM")), null));
        System.out.println(dateFormat(minDateOfMonth(dateParse("2016-03-31", null)), null));*/
    }

    /**
     * 当前日期毫秒.xls
     *
     * @return
     */
    public static String formatName() {
        Calendar calen = Calendar.getInstance();
        SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMddhhmmss");
        String name = sdf.format(calen.getTime());
        return name;
    }

    /**
     * 获取某月的日期List
     *
     * @param dateStr
     * @return
     */
    public static List<Date> getDayByMonth(String dateStr) {
        List<Date> list = new ArrayList();
        Date date = null;
        try {
            date = shortSdf.parse(dateStr);
            calendar.setTime(date);
            int month = calendar.get(Calendar.MONTH) + 1;//月份
            int year = calendar.get(Calendar.YEAR);//年份
            int day = calendar.getActualMaximum(Calendar.DATE);
            for (int i = 1; i <= day; i++) {
                String source = year + "-" + month + "-" + i;
                list.add(shortSdf.parse(source));
            }
        } catch (ParseException e) {
            e.printStackTrace();
        }

        return list;
    }

    /**
     * 判断一个时间是否在一个时间段内
     *
     * @param nowTime   当前时间
     * @param beginTime 开始时间
     * @param endTime   结束时间
     */

    public static boolean belongCalendar(Date nowTime, Date beginTime, Date endTime) {
        Calendar date = Calendar.getInstance();
        date.setTime(nowTime);
        Calendar begin = Calendar.getInstance();
        begin.setTime(beginTime);
        Calendar end = Calendar.getInstance();
        end.setTime(endTime);
        return date.after(begin) && date.before(end);
    }

    /**
     * 由出生日期获得年龄
     *
     * @param birthDay 出生日期
     */
    public static int getAge(Date birthDay) {
        if (birthDay == null) {
            return 0;
        }
        LocalDate now = LocalDate.now();
        Calendar cal = Calendar.getInstance();
        cal.setTime(birthDay);
        int yearBirth = cal.get(Calendar.YEAR);
        int monthBirth = cal.get(Calendar.MONTH) + 1;
        int dayOfMonthBirth = cal.get(Calendar.DAY_OF_MONTH);

        LocalDate birth = LocalDate.of(yearBirth, monthBirth, dayOfMonthBirth);
        if (birth.isAfter(now)) {
            return 0;
        }
        int age = birth.until(now).getYears();
        return age;
    }


    /**
     * 根据两个日期返回相差的时分秒
     * @param newTime 靠后时间
     * @param oldTime 靠前时间
     * @return
     */
    public static String getTimestr(Date newTime, Date oldTime) {
        Long newTimes = newTime.getTime();
        Long oldTimes = oldTime.getTime();
        // 不改时间会多加八个小时
        timeSdf.setTimeZone(TimeZone.getTimeZone("GMT+00:00"));
        return timeSdf.format(newTimes-oldTimes);
    }
}
