package cn.wildfire.chat.kit;

import java.text.DecimalFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;

/**
 * @author kimi
 * @description
 * @date 2021-01-08 16:24
 */


public class DateFormat {

    public static DayCompare dayComparePrecise(Date fromDate, Date toDate){
        Calendar from  =  Calendar.getInstance();
        from.setTime(fromDate);
        Calendar  to  =  Calendar.getInstance();
        to.setTime(toDate);

        int fromYear = from.get(Calendar.YEAR);
        int fromMonth = from.get(Calendar.MONTH);
        int fromDay = from.get(Calendar.DAY_OF_MONTH);

        int toYear = to.get(Calendar.YEAR);
        int toMonth = to.get(Calendar.MONTH);
        int toDay = to.get(Calendar.DAY_OF_MONTH);
        int year = toYear  -  fromYear;
        int month = toMonth  - fromMonth;
        int day = toDay  - fromDay;
        DayCompare dayCompare =new DayCompare();
        dayCompare.setDay(day);
        dayCompare.setMonth(month);
        dayCompare.setYear(year);
        return dayCompare;
    }

    public static int yearCompare(Date fromDate, Date toDate){
        DayCompare result = dayComparePrecise(fromDate, toDate);
        double month = result.getMonth();
        double year = result.getYear();
        //返回2位小数，并且四舍五入
        DecimalFormat df = new DecimalFormat("######0.0");
        String format = df.format(year + month / 12);
        double dou = Double.parseDouble(format);
        double floor = Math.floor(dou);
        int i = (int) floor;
        return i;
    }

    /**
     * 获取当前时间戳
     */
    public static long getCurrentMillis() {
        return System.currentTimeMillis();
    }

    /*
     * 将时间转换为时间戳
     */
    public static long dateToStamp(String s) throws ParseException {
        String res;
        SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        Date date = simpleDateFormat.parse(s);
        long ts = date.getTime();
        return ts;
    }


    /*
     * 将时间戳转换为时间
     */
    public static String stampToStandTime(long s){
        String res;
        SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        long lt = new Long(s);
        Date date = new Date(lt);
        res = simpleDateFormat.format(date);
        return res;
    }


    /*
     * 将时间戳转换为时间
     */
    public static String dateToDotDate(String s) throws ParseException {
        long l = dateToStamp(s);
        return stampToDotDate(l);
    }


    /*
     * 将时间戳转换为时间
     */
    public static String stampToDotDate(long s){
        String res;
        SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy.MM.dd");
        long lt = new Long(s);
        Date date = new Date(lt);
        res = simpleDateFormat.format(date);
        return res;
    }

    /*
     * 将时间戳转换为时间
     */
    public static String stampToDotTime(long s){
        String res;
        SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy.MM.dd HH:mm:ss");
        long lt = new Long(s);
        Date date = new Date(lt);
        res = simpleDateFormat.format(date);
        return res;
    }

    public static class DayCompare {
        private int year;
        private int month;
        private int day;

        public DayCompare() {
        }

        public DayCompare(int year, int month, int day) {
            this.year = year;
            this.month = month;
            this.day = day;
        }

        public int getYear() {
            return year;
        }

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

        public int getMonth() {
            return month;
        }

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

        public int getDay() {
            return day;
        }

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

        @Override
        public String toString() {
            return "DayCompare{" +
                    "year=" + year +
                    ", month=" + month +
                    ", day=" + day +
                    '}';
        }
    }

}