package com.ruoyi.common.utils;

import java.lang.management.ManagementFactory;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.time.LocalDate;
import java.time.LocalDateTime;
import java.time.LocalTime;
import java.time.ZoneId;
import java.time.ZonedDateTime;
import java.util.Calendar;
import java.util.Date;

import org.apache.commons.lang3.time.DateFormatUtils;

/**
 * 时间工具类
 *
 * @author ruoyi
 */
public class DateUtils extends org.apache.commons.lang3.time.DateUtils {
    public static String YYYY = "yyyy";

    public static String YYYY_MM = "yyyy-MM";

    public static String YYYY_MM_DD = "yyyy-MM-dd";

    public static String YYYYMMDDHHMMSS = "yyyyMMddHHmmss";

    public static String YYYY_MM_DD_HH_MM_SS = "yyyy-MM-dd HH:mm:ss";

    public static String HH_MM_SS = "HH:mm:ss";

    private static String[] parsePatterns = {
            "yyyy-MM-dd", "yyyy-MM-dd HH:mm:ss", "yyyy-MM-dd HH:mm", "yyyy-MM",
            "yyyy/MM/dd", "yyyy/MM/dd HH:mm:ss", "yyyy/MM/dd HH:mm", "yyyy/MM",
            "yyyy.MM.dd", "yyyy.MM.dd HH:mm:ss", "yyyy.MM.dd HH:mm", "yyyy.MM"};

    /**
     * 获取当前Date型日期
     *
     * @return Date() 当前日期
     */
    public static Date getNowDate() {
        return new Date();
    }

    /**
     * 获取当前日期, 默认格式为yyyy-MM-dd
     *
     * @return String
     */
    public static String getDate() {
        return dateTimeNow(YYYY_MM_DD);
    }

    public static final String getTime() {
        return dateTimeNow(YYYY_MM_DD_HH_MM_SS);
    }

    public static final String getNowTime() {
        return dateTimeNow(HH_MM_SS);
    }

    public static final String dateTimeNow() {
        return dateTimeNow(YYYYMMDDHHMMSS);
    }

    public static final String dateTimeNow(final String format) {
        return parseDateToStr(format, new Date());
    }

    public static final String dateTime(final Date date) {
        return parseDateToStr(YYYY_MM_DD, date);
    }

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

    public static final Date dateTime(final String format, final String ts) {
        try {
            return new SimpleDateFormat(format).parse(ts);
        } catch (ParseException e) {
            throw new RuntimeException(e);
        }
    }

    /**
     * 日期路径 即年/月/日 如2018/08/08
     */
    public static final String datePath() {
        Date now = new Date();
        return DateFormatUtils.format(now, "yyyy/MM/dd");
    }

    /**
     * 日期路径 即年/月/日 如20180808
     */
    public static final String dateTime() {
        Date now = new Date();
        return DateFormatUtils.format(now, "yyyyMMdd");
    }

    /**
     * 日期型字符串转化为日期 格式
     */
    public static Date parseDate(Object str) {
        if (str == null) {
            return null;
        }
        try {
            return parseDate(str.toString(), parsePatterns);
        } catch (ParseException e) {
            return null;
        }
    }

    /**
     * 获取服务器启动时间
     */
    public static Date getServerStartDate() {
        long time = ManagementFactory.getRuntimeMXBean().getStartTime();
        return new Date(time);
    }

    /**
     * 计算相差天数
     */
    public static int differentDaysByMillisecond(Date date1, Date date2) {
        return Math.abs((int) ((date2.getTime() - date1.getTime()) / (1000 * 3600 * 24)));
    }

    /**
     * 计算时间差
     *
     * @param endDate   最后时间
     * @param startTime 开始时间
     * @return 时间差（天/小时/分钟）
     */
    public static String timeDistance(Date endDate, Date startTime) {
        long nd = 1000 * 24 * 60 * 60;
        long nh = 1000 * 60 * 60;
        long nm = 1000 * 60;
        // long ns = 1000;
        // 获得两个时间的毫秒时间差异
        long diff = endDate.getTime() - startTime.getTime();
        // 计算差多少天
        long day = diff / nd;
        // 计算差多少小时
        long hour = diff % nd / nh;
        // 计算差多少分钟
        long min = diff % nd % nh / nm;
        // 计算差多少秒//输出结果
        // long sec = diff % nd % nh % nm / ns;
        return day + "天" + hour + "小时" + min + "分钟";
    }

    /**
     * 增加 LocalDateTime ==> Date
     */
    public static Date toDate(LocalDateTime temporalAccessor) {
        ZonedDateTime zdt = temporalAccessor.atZone(ZoneId.systemDefault());
        return Date.from(zdt.toInstant());
    }

    /**
     * 增加 LocalDate ==> Date
     */
    public static Date toDate(LocalDate temporalAccessor) {
        LocalDateTime localDateTime = LocalDateTime.of(temporalAccessor, LocalTime.of(0, 0, 0));
        ZonedDateTime zdt = localDateTime.atZone(ZoneId.systemDefault());
        return Date.from(zdt.toInstant());
    }

    /**
     * 判断当前日期是星期几
     *
     * @param pTime 修要判断的时间
     * @return dayForWeek 判断结果
     * @Exception 发生异常
     */

    public static int dayForWeek(String pTime) throws Exception {

        SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd");

        Calendar c = Calendar.getInstance();

        c.setTime(format.parse(pTime));

        int dayForWeek = 0;

        if (c.get(Calendar.DAY_OF_WEEK) == 1) {

            dayForWeek = 7;

        } else {

            dayForWeek = c.get(Calendar.DAY_OF_WEEK) - 1;

        }

        return dayForWeek;

    }

    /***
     * 判断str3是否在str1与str2之间
     * @param str1
     * @param str2
     * @param str3
     * @param format 时间格式
     * @return
     * @throws Exception
     */
    public static Boolean isClass(String str1,String str2,String str3,String format) throws Exception {
        //判断某个日期是否在两个日期范围之外
        SimpleDateFormat simpleDateFormat = new SimpleDateFormat(format);
        Date date1 = simpleDateFormat.parse(str1);
        Date date2 = simpleDateFormat.parse(str2);
        Date date3 = simpleDateFormat.parse(str3);
        Boolean bl = true;
        if (date1.getTime() > date3.getTime() || date2.getTime() < date3.getTime()) {
            bl = false;
        }
        return bl;
    }

    public static String timeMonthFirst() {
        SimpleDateFormat format = new SimpleDateFormat(YYYY_MM_DD);
        Calendar cale = Calendar.getInstance();
        cale.add(Calendar.MONTH, 0);
        cale.set(Calendar.DAY_OF_MONTH, 1);
        String firstday = format.format(cale.getTime());
        return firstday;
    }


    /***
     * 获取所传时间的周一时间
     * @return
     * @throws Exception
     */
    public static String getTimeIntervalOne(Date date) {
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
        Calendar cal = Calendar.getInstance();
        cal.setTime(date);
        int dayWeek = cal.get(Calendar.DAY_OF_WEEK);
        if (1 == dayWeek) {
            cal.add(Calendar.DAY_OF_MONTH, 0);
        }
        cal.setFirstDayOfWeek(Calendar.MONDAY);
        int day = cal.get(Calendar.DAY_OF_WEEK);
        cal.add(Calendar.DATE, cal.getFirstDayOfWeek() - day);
        String imptimeBegin = sdf.format(cal.getTime());
        return imptimeBegin ;
    }

    /***
     * 获取所传时间的周五时间
     * @return date 本周的第一天
     * @throws Exception
     */
    public static String getTimeIntervalFive(String date) throws ParseException {
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
        Date da = sdf.parse(date);
        Calendar cal = Calendar.getInstance();
        cal.setTime(da);
        int dayWeek = cal.get(Calendar.DAY_OF_WEEK);
        if (1 == dayWeek) {
            cal.add(Calendar.DAY_OF_MONTH, 0);
        }
        cal.setFirstDayOfWeek(Calendar.MONDAY);
        cal.add(Calendar.DATE, 4);
        String imptimeEnd = sdf.format(cal.getTime());
        return imptimeEnd;
    }

    /*public static void main(String[] args) {
        String fist = getTimeIntervalOne(new Date());
        String five = null;
        try {
            five = getTimeIntervalFive(fist);
        } catch (ParseException e) {
            e.printStackTrace();
        }
        System.out.println(fist);
        System.out.println(five);
    }*/

}
