package com.basic.security.utils;


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

public class DateUtil {

    static SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss.S");
    private static SimpleDateFormat yyyy_MM_dd = new SimpleDateFormat("yyyy-MM-dd");
    private static SimpleDateFormat yyyy年MM月dd日 = new SimpleDateFormat("yyyy年MM月dd日");

    public static String format() {
        return yyyy_MM_dd.format(new Date());
    }

    public static String format(Date date) {
        return yyyy_MM_dd.format(date);
    }

    public static String yyyy年MM月dd日(Date date) {
        return yyyy年MM月dd日.format(date);
    }

    public static String yyyy年MM月dd日() {
        return yyyy年MM月dd日.format(new Date());
    }

    public static String yyyy_MM_dd_to_yyyy年MM月dd日(String date) {
        try {
            return yyyy年MM月dd日.format(yyyy_MM_dd.parse(date));
        } catch (Exception e) {
            return "";
        }
    }

    public static String getPreviousMonthLastDay() {
        Calendar aCalendar = Calendar.getInstance();
        // add -1 month to current month
        aCalendar.add(Calendar.MONTH, -1);
        // set DATE to 1, so first date of previous month
        aCalendar.set(Calendar.DATE, 1);

        Date firstDateOfPreviousMonth = aCalendar.getTime();

        // set actual maximum date of previous month
        aCalendar.set(Calendar.DATE, aCalendar.getActualMaximum(Calendar.DAY_OF_MONTH));
        //read it
        Date lastDateOfPreviousMonth = aCalendar.getTime();
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
        try {
            return sdf.format(lastDateOfPreviousMonth) + " 23:59:59";
        } catch (Exception e) {
            e.printStackTrace();
            return "";
        }
    }

    public static String getYesterday() {
        Calendar aCalendar = Calendar.getInstance();
        aCalendar.add(Calendar.DATE, -1);

        Date lastDateOfPreviousMonth = aCalendar.getTime();
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
        try {
            return sdf.format(lastDateOfPreviousMonth) + " 23:59:59";
        } catch (Exception e) {
            e.printStackTrace();
            return "";
        }
    }

    public static String getNowTime() {
        Date date = new Date(System.currentTimeMillis());
        SimpleDateFormat format = new SimpleDateFormat("yyyy/MM/dd HH:mm:ss", Locale.getDefault());
        String s = "abc";
        if (s instanceof String) {

        }
        return format.format(date);

    }

    public static String getNowTime2() {
        Date date = new Date(System.currentTimeMillis());
        SimpleDateFormat format = new SimpleDateFormat("yyyy/MM/dd HH:mm", Locale.getDefault());
        return format.format(date);

    }

    public static String formatTime(long time, String format) {
        Date date = new Date(time);
        SimpleDateFormat simpleDateFormat = new SimpleDateFormat(format, Locale.getDefault());
        return simpleDateFormat.format(date);

    }

    public static long getDefaultTimeStamp(String time) {
        return getTimeStamp(time, "yyyy/MM/dd HH:mm");
    }

    public static long getTimeStamp(String time, String format) {

        SimpleDateFormat dateFormat = new SimpleDateFormat(format);
        Date date = new Date();
        try {
            date = dateFormat.parse(time);
        } catch (ParseException e) {
            e.printStackTrace();
        }
        return date.getTime();
    }

    //获得当天0点的时间戳
    public static long getTimesMorning() {
        Calendar cal = Calendar.getInstance();
        cal.set(Calendar.HOUR_OF_DAY, 0);
        cal.set(Calendar.SECOND, 0);
        cal.set(Calendar.MINUTE, 0);
        cal.set(Calendar.MILLISECOND, 0);
        return cal.getTimeInMillis();
    }

    //获得当天24点的时间戳
    public static long getTimesNight() {
        Calendar cal = Calendar.getInstance();
        cal.set(Calendar.HOUR_OF_DAY, 23);
        cal.set(Calendar.SECOND, 59);
        cal.set(Calendar.MINUTE, 59);
        cal.set(Calendar.MILLISECOND, 999);
        return cal.getTimeInMillis();
    }

    //获得本周一0点时间
    public static int getTimesWeekmorning() {
        Calendar cal = Calendar.getInstance();
        cal.set(cal.get(Calendar.YEAR), cal.get(Calendar.MONDAY), cal.get(Calendar.DAY_OF_MONTH), 0, 0, 0);
        cal.set(Calendar.DAY_OF_WEEK, Calendar.MONDAY);
        return (int) (cal.getTimeInMillis() / 1000);
    }

    //获得本周日24点时间
    public static int getTimesWeeknight() {
        Calendar cal = Calendar.getInstance();
        cal.set(cal.get(Calendar.YEAR), cal.get(Calendar.MONDAY), cal.get(Calendar.DAY_OF_MONTH), 0, 0, 0);
        cal.set(Calendar.DAY_OF_WEEK, Calendar.MONDAY);
        return (int) ((cal.getTime().getTime() + (7 * 24 * 60 * 60 * 1000)) / 1000);
    }

    //获得本月第一天0点时间
    public static int getTimesMonthmorning() {
        Calendar cal = Calendar.getInstance();
        cal.set(cal.get(Calendar.YEAR), cal.get(Calendar.MONDAY), cal.get(Calendar.DAY_OF_MONTH), 0, 0, 0);
        cal.set(Calendar.DAY_OF_MONTH, cal.getActualMinimum(Calendar.DAY_OF_MONTH));
        return (int) (cal.getTimeInMillis() / 1000);
    }
    // 获取当前时间是星期几

    //获得本月最后一天24点时间
    public static int getTimesMonthnight() {
        Calendar cal = Calendar.getInstance();
        cal.set(cal.get(Calendar.YEAR), cal.get(Calendar.MONDAY), cal.get(Calendar.DAY_OF_MONTH), 0, 0, 0);
        cal.set(Calendar.DAY_OF_MONTH, cal.getActualMaximum(Calendar.DAY_OF_MONTH));
        cal.set(Calendar.HOUR_OF_DAY, 24);
        return (int) (cal.getTimeInMillis() / 1000);

    }

    /**
     * 判断当前日期是星期几
     *
     * @param pTime 要判断的时间
     * @return dayForWeek 判断结果
     * @Exception 发生异常
     */
    public static String dayForWeek(long pTime) throws Exception {
        Date date = new Date();

        SimpleDateFormat dateFm = new SimpleDateFormat("EEEE");

        return dateFm.format(date);
    }

    public static String getDateTimeStrFull() {
        return sdf.format(new Date());
    }

}