package com.finance.common.utils;

import cn.hutool.core.convert.NumberChineseFormatter;
import cn.hutool.core.date.DateUtil;
import java.lang.management.ManagementFactory;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.time.Instant;
import java.time.LocalDate;
import java.time.LocalDateTime;
import java.time.LocalTime;
import java.time.ZoneId;
import java.time.ZonedDateTime;
import java.time.format.DateTimeFormatter;
import java.util.Calendar;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;
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";

    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 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());
    }

    /**
     * 指定日期所在周的周一和周日时间
     *
     * @return 结果集
     */
    public static Map<String, Date> getWeekDate(Date date) {
        Map<String, Date> map = new HashMap<>(2);
        Calendar cal = Calendar.getInstance();
        cal.setTime(date);
        // 设置一个星期的第一天，按中国的习惯一个星期的第一天是星期一
        cal.setFirstDayOfWeek(Calendar.MONDAY);
        // 获得当前日期是一个星期的第几天
        int dayWeek = cal.get(Calendar.DAY_OF_WEEK);
        if (dayWeek == 1) {
            dayWeek = 8;
        }
        // 根据日历的规则，给当前日期减去星期几与一个星期第一天的差值
        cal.add(Calendar.DATE, cal.getFirstDayOfWeek() - dayWeek);
        Date mondayDate = cal.getTime();
        cal.add(Calendar.DATE, 4 + cal.getFirstDayOfWeek());
        Date sundayDate = cal.getTime();
        map.put("first", mondayDate);
        map.put("last", sundayDate);
        return map;
    }

    /**
     * 指定日期所在月的第一天/最后一天时间
     *
     * @return 结果集
     */
    public static Map<String, Date> getMonthDate(Date date) {
        Map<String, Date> map = new HashMap<>(2);
        Calendar cal = Calendar.getInstance();
        // 设置指定日期
        cal.setTime(date);
        // 获取当月第一天日期
        int first = cal.getActualMinimum(Calendar.DAY_OF_MONTH);
        cal.set(Calendar.DAY_OF_MONTH, first);
        Date firstDay = cal.getTime();
        map.put("first", firstDay);
        // 获取当月最后一天日期
        int last = cal.getActualMaximum(Calendar.DAY_OF_MONTH);
        cal.set(Calendar.DAY_OF_MONTH, last);
        Date lastDay = cal.getTime();
        map.put("last", lastDay);
        return map;
    }

    /**
     * 获取日期逻辑中所在的季度数
     *
     * @param date 当前日期
     * @return 第几季度
     */
    public static int getQuarterOfYear(Date date) {
        Calendar calendar = Calendar.getInstance();
        calendar.setTime(date);
        return calendar.get(Calendar.MONTH) / 3 + 1;
    }

    /**
     * 指定日期所在季度的第一天/最后一天时间
     *
     * @return 结果集
     */
    public static Map<String, Date> getQuarterDate(Date date) {
        Map<String, Date> map = new HashMap<>(2);

        int quarter = getQuarterOfYear(date);
        int year = dateToLocalDateTime(date).getYear();

        int startMonth = (quarter - 1) * 3;
        // 根据月获取开始时间
        Calendar cal = Calendar.getInstance();
        cal.set(Calendar.YEAR, year);
        cal.set(Calendar.MONTH, startMonth);
        cal.set(Calendar.DAY_OF_MONTH, 1);
        cal.set(Calendar.HOUR, 0);
        cal.set(Calendar.MINUTE, 0);
        cal.set(Calendar.SECOND, 0);
        Date first = cal.getTime();
        map.put("first", first);

        int lastMonth = quarter * 3 - 1;
        // 根据月获取结束时间
        cal = Calendar.getInstance();
        cal.set(Calendar.YEAR, year);
        cal.set(Calendar.MONTH, lastMonth);
        cal.set(Calendar.DAY_OF_MONTH, cal.getActualMaximum(Calendar.DAY_OF_MONTH));
        cal.set(Calendar.HOUR, 0);
        cal.set(Calendar.MINUTE, 0);
        cal.set(Calendar.SECOND, 0);
        Date last = cal.getTime();
        map.put("last", last);

        return map;
    }

    /**
     * 指定日期所在年的第一天/最后一天时间
     *
     * @return 结果集
     */
    public static Map<String, Date> getYearDate(Date date) {
        Map<String, Date> map = new HashMap<>(2);
        Calendar cal = Calendar.getInstance();
        // 设置指定日期
        cal.setTime(date);
        // 获取本年第一天日期
        int first = cal.getActualMinimum(Calendar.DAY_OF_YEAR);
        cal.set(Calendar.DAY_OF_YEAR, first);
        Date firstDay = cal.getTime();
        map.put("first", firstDay);
        // 获取本年最后一天日期
        int last = cal.getActualMaximum(Calendar.DAY_OF_YEAR);
        cal.set(Calendar.DAY_OF_YEAR, last);
        Date lastDay = cal.getTime();
        map.put("last", lastDay);
        return map;
    }

    /**
     * 获取当天的00:00:00
     *
     * @return
     */
    public static LocalDateTime getDayStart(LocalDateTime time) {
        return time.with(LocalTime.MIN);
    }


    /**
     * 获取当天的23:59:59
     *
     * @return
     */
    public static LocalDateTime getDayEnd(LocalDateTime time) {
        return time.with(LocalTime.MAX);
    }

    /**
     * localdatetime转为字符串
     *
     * @param time localdatetime
     * @return 字符串
     */
    public static String localDateTimeToString(LocalDateTime time) {
        DateTimeFormatter df = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss");
        return df.format(time);
    }

    /**
     * Date转为LocalDateTime
     *
     * @param date 日期
     * @return LocalDateTime
     */
    public static LocalDateTime dateToLocalDateTime(Date date) {
        Instant instant = date.toInstant();
        ZoneId zoneId = ZoneId.systemDefault();
        return instant.atZone(zoneId).toLocalDateTime();
    }

    /**
     * Date转为LocalDateTime
     *
     * @param date 日期
     * @return LocalDateTime
     */
    public static LocalDate dateToLocalDate(Date date) {
        Instant instant = date.toInstant();
        ZoneId zoneId = ZoneId.systemDefault();
        return instant.atZone(zoneId).toLocalDate();
    }

    /**
     * localdate转为字符串
     *
     * @param time localdate
     * @return 字符串
     */
    public static String localDateToString(LocalDate time) {
        DateTimeFormatter df = DateTimeFormatter.ofPattern("yyyy-MM-dd");
        return df.format(time);
    }

    /**
     * 字符串转为localdate
     *
     * @param time localdate
     * @return 字符串
     */
    public static LocalDate stringToLocalDate(String time) {
        return LocalDate.parse(time, DateTimeFormatter.ofPattern("yyyy-MM-dd"));
    }

    /**
     * 获取当前季度字符串
     *
     * @return 当前季度字符串
     * @throws Exception 异常
     */
    public static String getNowQuarter() throws Exception {
        // 当前所在季度
        Date date = new Date();
        // char quarterOfYear = String.valueOf(getQuarterOfYear(date)).toCharArray()[0];
        int quarterOfYear = DateUtil.quarter(date);
        String quarterOfYearStr = NumberChineseFormatter.numberCharToChinese((char) quarterOfYear,
                false);
        LocalDate now = LocalDate.now();
        return String.format("%s年%s季度", now.getYear(), quarterOfYearStr);
    }

    /**
     * 获取上一季度字符串
     *
     * @return 当前季度字符串
     * @throws Exception 异常
     */
    public static String getPreviousQuarter() throws Exception {
        // 当前日期
        LocalDate now = LocalDate.now();
        // 当前月份
        int currentMonth = now.getMonthValue();
        // 计算上季度的月份
        int previousQuarterMonth = currentMonth - 3;
        int previousQuarterYear = now.getYear();

        if (previousQuarterMonth <= 0) {
            previousQuarterMonth += 12;
            previousQuarterYear -= 1;
        }

        // 计算上季度的季度数
        int previousQuarter = (previousQuarterMonth - 1) / 3 + 1;
        // 将季度数转换为汉字
        String quarterOfYearStr = NumberChineseFormatter.numberCharToChinese(
                (char) (previousQuarter + '0'), false);

        // 返回上季度的年份和季度
        return String.format("%s年%s季度", previousQuarterYear, quarterOfYearStr);
    }

    public static Date getQuarterDate(String quarter) {
        // 提取年份和季度信息
        int year = Integer.parseInt(quarter.substring(0, 4));
        int quarterNumber = NumberChineseFormatter.chineseToNumber(quarter.substring(5, 6)); // 季度数字
        // 计算季度初的日期
        LocalDate startDate;
        switch (quarterNumber) {
            case 1:
                startDate = LocalDate.of(year, 1, 1);
                break;
            case 2:
                startDate = LocalDate.of(year, 4, 1);
                break;
            case 3:
                startDate = LocalDate.of(year, 7, 1);
                break;
            case 4:
                startDate = LocalDate.of(year, 10, 1);
                break;
            default:
                throw new IllegalArgumentException("Invalid quarter number: " + quarterNumber);
        }
        return DateUtils.toDate(startDate);
    }

    public static Date getQuarterDateEnd(String quarter) {
        // 提取年份和季度信息
        int year = Integer.parseInt(quarter.substring(0, 4));
        int quarterNumber = NumberChineseFormatter.chineseToNumber(quarter.substring(5, 6)); // 季度数字
        // 计算季度初的日期
        LocalDate startDate;
        switch (quarterNumber) {
            case 1:
                startDate = LocalDate.of(year, 3, 1);
                break;
            case 2:
                startDate = LocalDate.of(year, 6, 1);
                break;
            case 3:
                startDate = LocalDate.of(year, 9, 1);
                break;
            case 4:
                startDate = LocalDate.of(year, 12, 1);
                break;
            default:
                throw new IllegalArgumentException("Invalid quarter number: " + quarterNumber);
        }
        return DateUtils.toDate(startDate);
    }

    // 测试 getNowQuarter
    public static void main(String[] args) throws Exception {
        SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        String nowQuarter = getNowQuarter();
        System.out.println(nowQuarter);
        System.out.println(NumberChineseFormatter.chineseToNumber("一"));
        System.out.println(simpleDateFormat.format(getQuarterDateEnd("2024年一季度")));
        String month = DateUtil.format(getQuarterDateEnd("2024年一季度"), "MM");
        System.out.println(Double.parseDouble(month));
        System.out.println(simpleDateFormat.format(getQuarterDate("2024年二季度")));
        System.out.println(simpleDateFormat.format(getQuarterDate("2024年四季度")));
        System.out.println(simpleDateFormat.format(getQuarterDate("2024年四季度")));
        System.out.println(
                DateUtil.format(getQuarterDateEnd(getPreviousQuarter()), "yyyy-MM-dd HH:mm:ss"));
        System.out.println(
                DateUtil.format(getQuarterDate(getPreviousQuarter()), "yyyy-MM-dd HH:mm:ss"));
        System.out.println(getLastYearQuarter("2024年四季度"));
    }

    public static String getLastYearQuarter(String previousQuarter) {
        // 提取年份和季度信息
        String year = previousQuarter.substring(0, 4);
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy");
        try {
            // 今年
            Date date = sdf.parse(year);
            // 根据date获取去年的日期
            Calendar calendar = Calendar.getInstance();
            calendar.setTime(date);
            calendar.add(Calendar.YEAR, -1);
            Date lastYear = calendar.getTime();
            return String.format("%s年%s", sdf.format(lastYear), previousQuarter.substring(5));
        } catch (ParseException e) {
            throw new RuntimeException(e);
        }
    }
}