package com.mh.common.utils;

import java.lang.management.ManagementFactory;
import java.math.BigDecimal;
import java.math.RoundingMode;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.time.*;
import java.time.format.DateTimeFormatter;
import java.time.temporal.TemporalAdjusters;
import java.util.Calendar;
import java.util.Date;

import com.mh.common.core.domain.vo.EnergyConsumptionVO;
import com.mh.common.core.domain.vo.EnergyQueryVO;
import org.apache.commons.lang3.time.DateFormatUtils;

/**
 * 时间工具类
 * 
 * @author mh
 */
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"};

    /**
     * 将 Date 类型的 curTime 转换为 LocalTime
     *
     * @param curTime 需要转换的 Date 对象
     * @return 转换后的 LocalTime 对象
     */
    public static LocalTime convertDateToLocalTime(Date curTime) {
        // 将 Date 转换为 Instant
        java.time.Instant instant = curTime.toInstant();

        // 获取系统默认时区，或者指定其他时区，例如 ZoneId.of("UTC")
        ZoneId zone = ZoneId.systemDefault();

        // 将 Instant 转换为 LocalTime
        return instant.atZone(zone).toLocalTime();
    }

    public static boolean isCurrentTimeInRange(Date startTimeStr, Date endTimeStr, Date curTime) {
        LocalTime startTime = convertDateToLocalTime(startTimeStr);
        LocalTime endTime = convertDateToLocalTime(endTimeStr);
        LocalTime currentTime = convertDateToLocalTime(curTime);

        if (startTime.equals(endTime)) {
            // 开始和结束时间相同，视为全天范围内
            return true;
        } else if (endTime.isAfter(startTime)) {
            // 时间段不跨天，判断当前时间是否在[startTime, endTime]区间内
            return !currentTime.isBefore(startTime) && !currentTime.isAfter(endTime);
        } else {
            // 时间段跨天，判断当前时间是否在[startTime, 23:59:59.999999999]或[00:00:00, endTime]
            return !currentTime.isBefore(startTime) || !currentTime.isAfter(endTime);
        }
    }

    /**
     * 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());
    }

    /*
     * 获取同一个时间的上一个时间
     * @param timerStr
     * @return
     */
    public static String yoyDate(String timerStr) {
        DateTimeFormatter timeFormatter = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss");
        DateTimeFormatter timeFormatter1 = DateTimeFormatter.ofPattern("yyyy-MM-dd");
        LocalDate localDate = LocalDate.parse(timerStr, timeFormatter);
        LocalDate localDate1 = localDate.minusYears(1);
        return localDate1.format(timeFormatter1).concat(timerStr.substring(10));
    }

    /**
     * 获取同一个时间的上一个时间
     * @param timerStr
     * @return
     */
    public static String momDate(String timerStr, String timeType, String timeRange) {
        DateTimeFormatter timeFormatter = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss");
        LocalDateTime localDate = LocalDateTime.parse(timerStr, timeFormatter);
        LocalDateTime localDate1 = null;
        switch (timeType) {
            case "hour":
                localDate1 = localDate.minusHours(1);
                break;
            case "day":
                localDate1 = localDate.minusDays(1);
                break;
            case "month":
                if ("end".equals(timeRange)) {
                    localDate1 = localDate.minusMonths(1).with(TemporalAdjusters.lastDayOfMonth());
                } else if ("start".equals(timeRange)) {
                    localDate1 = localDate.minusMonths(1).with(TemporalAdjusters.firstDayOfMonth());
                }
                break;
            case "year":
                localDate1 = localDate.minusYears(1);
                break;
        }
        assert localDate1 != null;
        return localDate1.format(timeFormatter);
    }

    public static void energyDateChange(EnergyConsumptionVO vo) {
        switch (vo.getTimeType()) {
            case "day":
                vo.setStartTime(vo.getStartTime().concat(" 00:00:00"));
                vo.setEndTime(vo.getEndTime().concat(" 23:59:59"));
                break;
            case "month":
                YearMonth yearMonth = YearMonth.parse(vo.getStartTime(), DateTimeFormatter.ofPattern("yyyy-MM"));
                LocalDate firstDayOfMonth = yearMonth.atDay(1);
                String firstDayOutput = firstDayOfMonth.format(DateTimeFormatter.ofPattern("yyyy-MM-dd"));
                vo.setStartTime(firstDayOutput.concat(" 00:00:00"));

                YearMonth yearMonth1 = YearMonth.parse(vo.getEndTime(), DateTimeFormatter.ofPattern("yyyy-MM"));
                LocalDate firstDayOfMonth1 = yearMonth1.atEndOfMonth();
                String firstDayOutput1 = firstDayOfMonth1.format(DateTimeFormatter.ofPattern("yyyy-MM-dd"));
                vo.setEndTime(firstDayOutput1.concat(" 23:59:59"));
                break;
            case "year":
                vo.setStartTime(vo.getStartTime().concat("-01-01 00:00:00"));
                vo.setEndTime(vo.getEndTime().concat("-12-31 23:59:59"));
                break;
            default:
                break;
        }
    }

    public static void sysEnergyDateChange(EnergyQueryVO vo) {
        switch (vo.getTimeType()) {
            case "day":
                vo.setStartTime(vo.getStartTime().concat(" 00:00:00"));
                vo.setEndTime(vo.getEndTime().concat(" 23:59:59"));
                break;
            case "month":
                YearMonth yearMonth = YearMonth.parse(vo.getStartTime(), DateTimeFormatter.ofPattern("yyyy-MM"));
                LocalDate firstDayOfMonth = yearMonth.atDay(1);
                String firstDayOutput = firstDayOfMonth.format(DateTimeFormatter.ofPattern("yyyy-MM-dd"));
                vo.setStartTime(firstDayOutput.concat(" 00:00:00"));

                YearMonth yearMonth1 = YearMonth.parse(vo.getEndTime(), DateTimeFormatter.ofPattern("yyyy-MM"));
                LocalDate firstDayOfMonth1 = yearMonth1.atEndOfMonth();
                String firstDayOutput1 = firstDayOfMonth1.format(DateTimeFormatter.ofPattern("yyyy-MM-dd"));
                vo.setEndTime(firstDayOutput1.concat(" 23:59:59"));
                break;
            case "year":
                vo.setStartTime(vo.getStartTime().concat("-01-01 00:00:00"));
                vo.setEndTime(vo.getEndTime().concat("-12-31 23:59:59"));
                break;
            default:
                break;
        }
    }

    /**
     * 计算时间差
     * @param curTime
     * @param lastTime
     * @param type
     * @return
     */
    public static BigDecimal calcDate(Object curTime, Object lastTime, String type) {
        String momDate = momDate((String) curTime, type, "");
        DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss");
        long curDateMillis = 0;
        long lastTimeMillis = 0;
        try {
            LocalDateTime dateTime = LocalDateTime.parse(momDate, formatter);
            curDateMillis = dateTime.atZone(ZoneId.systemDefault()).toInstant().getEpochSecond();

            LocalDateTime lastDateTime = LocalDateTime.parse((CharSequence) lastTime, formatter);
            lastTimeMillis = lastDateTime.atZone(ZoneId.systemDefault()).toInstant().getEpochSecond();
        } catch (Exception e) {
            System.err.println("无法解析时间字符串: " + e.getMessage());
        }

        return (new BigDecimal(curDateMillis - lastTimeMillis)).divide(new BigDecimal(60),2, RoundingMode.HALF_UP);
    }

    public static String getTimeLen(String timeType) {
        String timeLen = "";
        switch (timeType) {
            case "hour":
                timeLen = "13";
                break;
            case "day":
                timeLen = "10";
                break;
            case "month":
                timeLen = "7";
                break;
            case "year":
                timeLen = "4";
                break;
        }
        return timeLen;
    }
    /**
     * 把日期格式化为字符串
     *
     * @param date   日期
     * @param format 格式
     * @return 返回格式化之后的字符串
     */
    public static Date stringToDate(String date, String format) {
        SimpleDateFormat dateFormat = new SimpleDateFormat(format);
        try {
            return dateFormat.parse(date);
        } catch (ParseException e) {
            return null;
        }
    }

    /**
     * 获取每隔多少分钟的格式化时间
     * 传入 date "2023-07-31 16:23:00" minuteInter 5分钟
     * 返回 "2023-07-31 16:20:00" 整点
     *
     * @param date           时间
     * @param minuteInterval 间隔
     * @return 时间
     */
    public static String getTimeMin(Date date, int minuteInterval) {
        if (minuteInterval <= 0 || minuteInterval > 30) {
            throw new RuntimeException("minute参数错误");
        }
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        String format = null;
        format = sdf.format(date);
        Calendar calendar = Calendar.getInstance();
        calendar.setTime(date);
        int minute = calendar.get(Calendar.MINUTE);
        int num = minute / minuteInterval;
        String curDate = format.substring(0, 13) + ":" + (num * minuteInterval) + ":00";
//        System.out.println("curDate = " + curDate);
        return curDate;
    }

    /**
     * 把日期格式化为字符串
     *
     * @param date   日期
     * @param format 格式
     * @return 返回格式化之后的字符串
     */
    public static String dateToString(Date date, String format) {
        SimpleDateFormat dateFormat = new SimpleDateFormat(format);
        return dateFormat.format(date);
    }


    /**
     * 时间格式转 yyyy-MM-dd'T'HH:mm:ssZ
     * @return
     */
    public static String dateToTsStr() {
        // 获取当前时间
        Instant now = Instant.now();
        // 转换为ZonedDateTime并设置时区为UTC
        ZonedDateTime zonedDateTime = now.atZone(ZoneId.of("UTC"));
        // 创建DateTimeFormatter对象并设置格式
        DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyy-MM-dd'T'HH:mm:ssZ");
        // 格式化日期
        return zonedDateTime.format(formatter);
    }
}