package com.ydtech.modules.partner.utils;


import java.time.LocalDate;
import java.time.LocalDateTime;
import java.time.ZoneId;
import java.time.format.DateTimeFormatter;
import java.time.temporal.ChronoUnit;
import java.util.Date;

public class PartnerDateUtils {


    public static boolean isWithinDays(Date date, int days) {
        LocalDate targetDate = date.toInstant()
                .atZone(ZoneId.systemDefault())
                .toLocalDate();
        return Math.abs(ChronoUnit.DAYS.between(LocalDate.now(), targetDate)) <= days;
    }


    public static Date addDaysToday(Date date, int days) {
        LocalDateTime localDate = date.toInstant()
                .atZone(ZoneId.systemDefault())
                .toLocalDateTime();
        LocalDateTime newLocalDate = localDate.plusDays(days);
        LocalDateTime newDateTime = newLocalDate.withHour(0)
                .withMinute(0)
                .withSecond(0)
                .withNano(0);
        return Date.from(newDateTime.atZone(ZoneId.systemDefault()).toInstant());
    }

    public static Date addDays(Date date, int days) {
        LocalDateTime localDate = date.toInstant()
                .atZone(ZoneId.systemDefault())
                .toLocalDateTime();
        LocalDateTime newLocalDate = localDate.plusDays(days);
        LocalDateTime endOfDay = newLocalDate.withHour(23)
                .withMinute(59)
                .withSecond(59)
                .withNano(999_999_999);
        return Date.from(endOfDay.atZone(ZoneId.systemDefault()).toInstant());
    }

    /**
     * 目标日期在今天之后
     * @param date
     * @return
     */
    public static boolean isAfter(Date  date){
        LocalDateTime localDate = date.toInstant()
                .atZone(ZoneId.systemDefault())
                .toLocalDateTime();
        return localDate.isAfter(LocalDateTime.now());
    }

    public static boolean before(Date date){
        if (date.before( new Date())) {
            System.out.println("目标时间在当前时间之前");
            return true;
        } else {
            System.out.println("目标时间在当前时间之后或相同");
            return false;
        }
    }

    /**
     * 目标日期在今天之前
     * @param date
     * @return
     */
    public static boolean isBefore(Date  date){
        LocalDateTime localDate = date.toInstant()
                .atZone(ZoneId.systemDefault())
                .toLocalDateTime();
        return localDate.isBefore(LocalDateTime.now());
    }

    /**
     * 描述: 计算两个日期之间的天数
     * @param date
     * @return
     */
    public static Long dateDifference(LocalDate date){
        return ChronoUnit.DAYS.between(LocalDate.now(),date);
    }


    public static Long daysBetween (LocalDate date){
        return ChronoUnit.DAYS.between(date,LocalDate.now());
    }

    public static boolean isSameDay(Date date) {
        LocalDate currentDate = LocalDate.now();
        LocalDate compareLocalDate = date.toInstant()
                .atZone(ZoneId.systemDefault())
                .toLocalDate();
        return currentDate.equals(compareLocalDate.plusDays(1));
    }


    /**
     * 描述: 生成到期时间
     * @param startTime
     * @param khDays
     * @return
     */
    public static Date generateEndTime(Date startTime,Integer khDays) {
        LocalDateTime localDateTime = startTime.toInstant()
                .atZone(ZoneId.systemDefault())
                .toLocalDateTime();
        LocalDateTime resultDateTime = localDateTime.plusDays(khDays).minusSeconds(1);
        return Date.from(resultDateTime.atZone(ZoneId.systemDefault()).toInstant());
    }

    public static String timeExample(Integer khDays) {
        DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyy-MM-dd");
        LocalDate minus = LocalDate.now().minus(khDays, ChronoUnit.DAYS);
        return formatter.format( minus);
    }


}