package com.edufound.reader.util;

import android.text.format.Time;

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

public class TimeUtil {

    /**
     * 日期字符串转换Date实体
     */
    public static Date parseServerTime(String serverTime, String format) {
        if (format == null || format.isEmpty()) {
            format = "yyyy-MM-dd HH:mm:ss";
        }
        SimpleDateFormat sdf = new SimpleDateFormat(format, Locale.CHINESE);
        sdf.setTimeZone(TimeZone.getTimeZone("GMT+8:00"));
        Date date = null;
        try {
            date = sdf.parse(serverTime);
        } catch (Exception e) {
            e.printStackTrace();
        }
        return date;
    }

    /**
     * 秒数转换成时分秒
     */
    public static String convertSecToTimeString(long lSeconds) {
        long nHour = lSeconds / 3600;
        long nMin = lSeconds % 3600;
        long nSec = nMin % 60;
        nMin = nMin / 60;

        return String.format("%02d小时%02d分钟%02d秒", nHour, nMin, nSec);
    }

    /**
     * Date对象获取时间字符串
     */
    public static String getDateStr(Date date, String format) {
        if (format == null || format.isEmpty()) {
            format = "yyyy-MM-dd HH:mm:ss";
        }
        SimpleDateFormat formatter = new SimpleDateFormat(format);
        return formatter.format(date);
    }


    /**
     * 时间戳转换日期格式字符串
     */
    public static String timeStamp2Date(long time, String format) {
        if (format == null || format.isEmpty()) {
            format = "yyyy-MM-dd HH:mm:ss";
        }
        SimpleDateFormat sdf = new SimpleDateFormat(format);
        return sdf.format(new Date(time));
    }


    /**
     * 日期格式字符串转换时间戳
     */
    public static String date2TimeStamp(String date, String format) {
        try {
            SimpleDateFormat sdf = new SimpleDateFormat(format);
            return String.valueOf(sdf.parse(date).getTime() / 1000);
        } catch (Exception e) {
            e.printStackTrace();
        }
        return "";
    }


    /**
     * 获取某个日期前后N天的日期
     *
     * @param beginDate
     * @param distanceDay 前后几天 如获取前7天日期则传-7即可；如果后7天则传7
     * @param format      日期格式，默认"yyyy-MM-dd"
     * @return
     */
    public static String getOldDateByDay(Date beginDate, int distanceDay, String format) {
        if (format == null || format.isEmpty()) {
            format = "yyyy-MM-dd";
        }
        SimpleDateFormat dft = new SimpleDateFormat(format);
        Calendar date = Calendar.getInstance();
        date.setTime(beginDate);
        date.set(Calendar.DATE, date.get(Calendar.DATE) + distanceDay);
        Date endDate = null;
        try {
            endDate = dft.parse(dft.format(date.getTime()));
        } catch (Exception e) {
            e.printStackTrace();
        }
        return dft.format(endDate);
    }

    /**
     * 获取前后几个月的日期
     *
     * @param beginDate
     * @param distanceMonth
     * @param format
     * @return
     */
    public static String getOldDateByMonth(Date beginDate, int distanceMonth, String format) {
        if (format == null || format.isEmpty()) {
            format = "yyyy-MM-dd";
        }
        SimpleDateFormat dft = new SimpleDateFormat(format);
        Calendar date = Calendar.getInstance();
        date.setTime(beginDate);
        date.set(Calendar.MONTH, date.get(Calendar.MONTH) + distanceMonth);
        Date endDate = null;
        try {
            endDate = dft.parse(dft.format(date.getTime()));
        } catch (Exception e) {
            e.printStackTrace();
        }
        return dft.format(endDate);
    }


    /**
     * 判断一个时间是否在某个时间范围内
     */
    public static boolean isCurrentInTimeScope(int deadlineHour, int deadlineMin) {
        boolean result;
        // 1000 * 60 * 60 * 24
        final long aDayInMillis = 86400000;
        final long currentTimeMillis = System.currentTimeMillis();
        //截止时间
        Time deadlineTime = new Time();
        deadlineTime.set(currentTimeMillis);
        deadlineTime.hour = deadlineHour;
        deadlineTime.minute = deadlineMin;
        //当前时间
        Time startTime = new Time();
        startTime.set(currentTimeMillis);
        //当前时间推后20分钟
        Date d = new Date(currentTimeMillis);
        long myTime = (d.getTime() / 1000) + 20 * 60;
        d.setTime(myTime * 1000);
        Time endTime = new Time();
        endTime.set(myTime);
        if (!startTime.before(endTime)) {
            // 跨天的特殊情况（比如22:00-8:00）
            startTime.set(startTime.toMillis(true) - aDayInMillis);
            result = !deadlineTime.before(startTime) && !deadlineTime.after(endTime);
            // startTime <= deadlineTime <=endTime
            Time startTimeInThisDay = new Time();
            startTimeInThisDay.set(startTime.toMillis(true) + aDayInMillis);
            if (!deadlineTime.before(startTimeInThisDay)) {
                result = true;
            }
        } else {
            // 普通情况(比如 8:00 - 14:00)
            result = !deadlineTime.before(startTime) && !deadlineTime.after(endTime);
            // startTime <= deadlineTime <=endTime
        }
        return result;
    }


    /**
     * 秒数转化为日期
     */
    public static String getDateFromSeconds(String seconds) {
        if (seconds == null)
            return " ";
        else {
            Date date = new Date();
            try {
                date.setTime(Long.parseLong(seconds) * 1000);
            } catch (NumberFormatException nfe) {

            }
            SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
            return sdf.format(date);
        }
    }
}