package com.zy.common.utils;

import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.Objects;
import java.util.concurrent.TimeUnit;

public class DateUtils {
    public static final String yyyyMMdd_C = "yyyy年MM月dd日";
    public static final String yyyyMM_F = "yyyy-MM";
    public static final String yyyyMMdd_F = "yyyy-MM-dd";
    public static final String yyyyMMddHHmmss_F = "yyyy-MM-dd HH:mm:ss";
    public static final String yyyyMMddHHmmsssss_F = "yyyy-MM-dd HH:mm:ss,SSS";
    public static final String yyyy = "yyyy";
    public static final String yyyyMM = "yyyyMM";
    public static final String yyyyMMdd = "yyyyMMdd";
    public static final String yyyyMMddHH = "yyyyMMddHH";
    public static final String yyyyMMddHHmmss = "yyyyMMddHHmmss";
    public static final String YYMMDDHHMMSS = "YYMMDDHHMMSS";
    public static final String yyyyMMddHHmmsssss = "yyyyMMddHHmmssSSS";

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

    public static String convert(Date date) {
        return convert(date, "yyyy-MM-dd HH:mm:ss");
    }

    public static Date convert(String str, String pattern) {
        if (str.length() < pattern.length()) {
            throw new RuntimeException("时间解析失败 ==>> " + str);
        } else {
            if (str.length() > pattern.length()) {
                str = str.substring(0, pattern.length());
            }

            SimpleDateFormat format = new SimpleDateFormat(pattern);

            try {
                Date date = format.parse(str);
                return date;
            } catch (ParseException var5) {
                throw new RuntimeException("时间解析失败 ==>> " + str);
            }
        }
    }

    public static Date convert(String str) {
        return convert(str, "yyyy-MM-dd HH:mm:ss");
    }

    public static int diff(Date date1, Date date2) {
        return getDaysByTimestamp(Math.abs(date2.getTime() - date1.getTime()));
    }

    public static long diffToMinute(Date date1, Date date2) {
        return Math.abs(date2.getTime() - date1.getTime()) / 1000L / 60L;
    }

    public static long diffToSeconds(Date date1, Date date2) {
        return Math.abs(date2.getTime() - date1.getTime()) / 1000L;
    }

    private static int getDaysByTimestamp(long timestamp) {
        double daysPoint = Arith.divides(2, new Number[]{timestamp, 86400000});
        int daysPoint1 = (int)daysPoint;
        double daysPoint2 = (double)daysPoint1;
        return daysPoint > daysPoint2 ? daysPoint1 + 1 : daysPoint1;
    }

    public static int diffToNow(Date date) {
        long diff = (new Date()).getTime() - date.getTime();
        return (int)(Math.abs(diff) / 1000L);
    }

    public static String createTimeStamp() {
        return Long.toString(System.currentTimeMillis() / 1000L);
    }

    public static Date calculate(Date date, Long val, TimeUnit timeUnit, boolean subtraction) {
        return !Objects.isNull(date) && !Objects.isNull(val) && !Objects.isNull(timeUnit) ? new Date(subtraction ? date.getTime() - timeUnit.toMillis(val) : date.getTime() + timeUnit.toMillis(val)) : null;
    }

    public static Date calculate(Date date, Long val, TimeUnit timeUnit) {
        return calculate(date, val, timeUnit, false);
    }

    public static DateEntity getDateEntity(Date date) {
        Calendar cal = Calendar.getInstance();
        cal.setTime(date);
        DateEntity dateEntity = new DateEntity();
        dateEntity.setYear(cal.get(1));
        dateEntity.setMonth(cal.get(2));
        dateEntity.setDay(cal.get(5));
        dateEntity.setHour(cal.get(11));
        dateEntity.setMinute(cal.get(12));
        dateEntity.setSecond(cal.get(13));
        return dateEntity;
    }

    static class DateEntity {
        int year;
        int month;
        int day;
        int hour;
        int minute;
        int second;

        public int getYear() {
            return this.year;
        }

        public void setYear(int year) {
            this.year = year;
        }

        public int getMonth() {
            return this.month;
        }

        public void setMonth(int month) {
            this.month = month + 1;
        }

        public int getDay() {
            return this.day;
        }

        public void setDay(int day) {
            this.day = day;
        }

        public int getHour() {
            return this.hour;
        }

        public void setHour(int hour) {
            this.hour = hour;
        }

        public int getMinute() {
            return this.minute;
        }

        public void setMinute(int minute) {
            this.minute = minute;
        }

        public int getSecond() {
            return this.second;
        }

        public void setSecond(int second) {
            this.second = second;
        }
    }
}