package platform.common.util;


import java.sql.Timestamp;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.TimeZone;

import org.apache.commons.lang3.StringUtils;

/**
 * Created by luohaifeng on 2017/8/9.
 */
public class DateUtil {

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

    public static String YYYY_MM = "yyyy-MM";

    public static String getCurrentDateString(String fmt) {
        SimpleDateFormat sdf = new SimpleDateFormat(fmt);
        return sdf.format(new Date());
    }

    public static String getCurrentDateString() {
        return getCurrentDateString(YYYY_MM_DD);
    }

    /**
     * 日期转字符串
     *
     * @param date
     * @return
     */
    public static String getTimeString(Date date) {
        if (null == date) {
            return "";
        } else {
            SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
            return simpleDateFormat.format(date);
        }
    }

    //	获取当前时间
    public static Date getNowDate() {
        TimeZone time = TimeZone.getTimeZone("Asia/Shanghai");
        TimeZone.setDefault(time);
        Date now = new Date();
        return now;
    }

    public static String getTime(Date date) {
        if (null == date) {
            return "";
        } else {
            SimpleDateFormat simpleDateFormat = new SimpleDateFormat(YYYY_MM_DD);
            return simpleDateFormat.format(date);
        }
    }
    /**
     * 日期转字符串 yyyy-MM-dd
     *
     * @param date
     * @return
     */
    public static String getTimeStringShort(Date date) {
        if (null == date) {
            return "";
        } else {
            SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd");
            return simpleDateFormat.format(date);
        }
    }
    
    /**
     * 字符串转时间转换日期格式
     *
     * @param date    时间字符串
     * @param pattern 字符串时间格式
     * @return
     * @throws ParseException
     */
    public static Date parseTimeStringToDate(String date, String pattern) throws ParseException {
        if (null == date) {
            return null;
        } else {
            SimpleDateFormat simpleDateFormat = new SimpleDateFormat(pattern);
            return simpleDateFormat.parse(date);
        }
    }

    public static long getDay(String pay_time,Integer cycle) throws ParseException {
        Date date = DateUtil.parseTimeStringToDate(pay_time, DateUtil.YYYY_MM_DD);
        Calendar calendar = Calendar.getInstance();
        calendar.setTime(date);
        calendar.add(Calendar.MONTH, -cycle);
        return ( date.getTime()-calendar.getTimeInMillis()) / (24 * 60 * 60 * 1000);
    }

    public static Boolean isGenerate(String pay_time,Integer remind) throws ParseException {
    	if(null == remind) {
    		remind = 5;
    	}
        Date date = DateUtil.parseTimeStringToDate(pay_time, DateUtil.YYYY_MM_DD);
        Calendar calendar = Calendar.getInstance();
        calendar.setTime(date);
        calendar.add(Calendar.DATE, -remind);
        if(calendar.getTimeInMillis()<=new Date().getTime()){
            return true;
        }
        return false;
    }
    /**
     * 2017-08-19 20:30
     *
     * @return
     */
    public static String[] getDate(String time) {
        String[] strs = time.split(":");
        return strs;
    }

    public static String getPayTime(Integer payment_cycle, String contract_start_date) throws ParseException {
        Calendar plan = Calendar.getInstance();
        plan.setTime(parseTimeStringToDate(contract_start_date, YYYY_MM_DD));
        plan.add(Calendar.MONTH,  payment_cycle);
        return getTimeStringShort(plan.getTime());
    }

    public static String AddMonth(Integer month, String date) throws ParseException {
        Calendar plan = Calendar.getInstance();
        plan.setTime(parseTimeStringToDate(date, YYYY_MM_DD));
        plan.add(Calendar.MONTH,  month);
        return getTimeStringShort(plan.getTime());
    }
    public static String  getCurrentMonth( ) throws ParseException {
        Calendar plan = Calendar.getInstance();
        plan.setTime(new Date());
        return String.valueOf(plan.get(Calendar.MONTH)+1);
    }
    public static String  getCurrentYear( ) throws ParseException {
        Calendar plan = Calendar.getInstance();
        plan.setTime(new Date());
        return String.valueOf(plan.get(Calendar.YEAR));
    }


    public static String getMonthStart( String date) throws ParseException {
        Calendar plan = Calendar.getInstance();
        plan.setTime(parseTimeStringToDate(date, YYYY_MM));
        plan.add(Calendar.MONTH, 0);
        plan.set(Calendar.DAY_OF_MONTH, 1);
        return getTime(plan.getTime());
    }

    public static String getMonthEnd( String date) throws ParseException {
        Calendar plan = Calendar.getInstance();
        plan.setTime(parseTimeStringToDate(date, YYYY_MM));
        plan.add(Calendar.MONTH, 1);
        plan.set(Calendar.DAY_OF_MONTH, 0);
        return getTime(plan.getTime());
    }

    public static Boolean compareTo(String time1,String time2) throws ParseException {
        Date date1 = DateUtil.parseTimeStringToDate(time1, YYYY_MM_DD);
        Date date2 = DateUtil.parseTimeStringToDate(time2, YYYY_MM_DD);

        if (date1.getTime() - date2.getTime() >= 0) {
            return true;
        } else {
            return false;
        }
    }
    public static void main(String args[]){
        try {
            System.out.println(getCurrentMonth());
            System.out.println(getCurrentYear());
        } catch (ParseException e) {
            e.printStackTrace();
        }
    }
    
    /**
     * 两个日期之间的天数
     * @param date1
     * @param date2
     * @return
     * @throws ParseException
     */
    public static int getDateSpace(String date1, String date2)
            throws ParseException {

        Calendar calst = Calendar.getInstance();;
        Calendar caled = Calendar.getInstance();

        calst.setTime(DateUtil.parseTimeStringToDate(date1, YYYY_MM_DD));
        caled.setTime(DateUtil.parseTimeStringToDate(date2, YYYY_MM_DD));
 
         //设置时间为0时   
         calst.set(Calendar.HOUR_OF_DAY, 0);   
         calst.set(Calendar.MINUTE, 0);   
         calst.set(Calendar.SECOND, 0);   
         caled.set(Calendar.HOUR_OF_DAY, 0);   
         caled.set(Calendar.MINUTE, 0);   
         caled.set(Calendar.SECOND, 0);   
        //得到两个日期相差的天数   
         int days = ((int)(caled.getTime().getTime()/1000)-(int)(calst.getTime().getTime()/1000))/3600/24;   
         
        return days;   
    }

    //获取审核剩余时间 审核时间5天
	public static String getOverTimeStr(String create_time,Integer overDay) throws ParseException {
		String overTimeStr = "";
		if(null == overDay) {
			overDay = 5;
		}
		if(StringUtils.isNotBlank(create_time)) {
			Calendar overTime = Calendar.getInstance();
			Calendar now = Calendar.getInstance();
			overTime.setTime(DateUtil.parseTimeStringToDate(create_time, "yyyy-MM-dd HH:mm:ss"));
			overTime.add(Calendar.DATE, overDay);
			now.setTime(new Date());
			
			overTime.set(Calendar.MINUTE, 0);   
			overTime.set(Calendar.SECOND, 0);   
			now.set(Calendar.MINUTE, 0); 
			now.set(Calendar.SECOND, 0); 
			
			//得到两个日期相差的小时数   
	        int hours = ((int)(overTime.getTime().getTime()/1000)-(int)(now.getTime().getTime()/1000))/3600; 
			if( hours/24 > 0) {
				overTimeStr = "剩余"+String.valueOf((int)Math.floor(hours/24))+"个工作日" ;//+(hours%24)+"小时";
			}else {
				overTimeStr = "超出"+String.valueOf((-1)*(int)Math.floor(hours/24))+"个工作日" ;//+(hours%24)+"小时";
			}
		}
		return overTimeStr;
	}
	
	//获取审核处理时间 审核时间5天
	public static String getDealTimeStr(String create_time,String deal_time,Integer overDay) throws ParseException {
		String overTimeStr = "";
		if(null == overDay) {
			overDay = 5;
		}
		if(StringUtils.isNotBlank(create_time) && StringUtils.isNotBlank(deal_time)) {
			Calendar overTime = Calendar.getInstance();
			Calendar dealTime = Calendar.getInstance();
			overTime.setTime(DateUtil.parseTimeStringToDate(create_time, "yyyy-MM-dd HH:mm:ss"));
			overTime.add(Calendar.DATE, overDay);
			dealTime.setTime(DateUtil.parseTimeStringToDate(deal_time, "yyyy-MM-dd HH:mm:ss"));
			
			overTime.set(Calendar.MINUTE, 0);   
			overTime.set(Calendar.SECOND, 0);   
			dealTime.set(Calendar.MINUTE, 0); 
			dealTime.set(Calendar.SECOND, 0); 
			
			//得到两个日期相差的小时数   
	        int hours = ((int)(overTime.getTime().getTime()/1000)-(int)(dealTime.getTime().getTime()/1000))/3600; 
			if( hours/24 > 0) {
				overTimeStr = "提前"+String.valueOf((int)Math.floor(hours/24))+"个工作日完成";//+(hours%24)+"小时完成";
			}else {
				overTimeStr = "超出"+String.valueOf((-1)*(int)Math.floor(hours/24))+"个工作日完成";//+(hours%24)+"小时完成";
			}
		}
		
		return overTimeStr;
	}

	//5秒内不能重复同一请求
	public static boolean isFrequent(String time) throws ParseException {
		Date preTime = DateUtil.parseTimeStringToDate(time,"yyyy-MM-dd HH:mm:ss");
		Date currTime = new Date(); 
		if(currTime.getTime()-preTime.getTime()<5000) {
			return true;
		}
		return false;
	}


    // 获得当天0点时间
    public static Date 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.getTime();
    }

    // 获得当天24点时间
    public static Date getTimesnight() {
        Calendar cal = Calendar.getInstance();
        cal.set(Calendar.HOUR_OF_DAY, 24);
        cal.set(Calendar.SECOND, 0);
        cal.set(Calendar.MINUTE, 0);
        cal.set(Calendar.MILLISECOND, 0);
        return  cal.getTime();
    }

    // 获得本周一0点时间
    public static Date 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  cal.getTime();
    }

    // 获得本周日24点时间
    public  static Date getTimesWeeknight() {
        Calendar cal = Calendar.getInstance();
        cal.setTime(getTimesWeekmorning());
        cal.add(Calendar.DAY_OF_WEEK, 7);
        return cal.getTime();
    }

    // 获得本月第一天0点时间
    public static Date 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  cal.getTime();
    }

    // 获得本月最后一天24点时间
    public static Date 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 cal.getTime();
    }

    /**
     * 获取两个日期相差的月数
     */
    public static int getMonthDiff(Date d1, Date d2) {
        Calendar c1 = Calendar.getInstance();
        Calendar c2 = Calendar.getInstance();
        c1.setTime(d1);
        c2.setTime(d2);
        int year1 = c1.get(Calendar.YEAR);
        int year2 = c2.get(Calendar.YEAR);
        int month1 = c1.get(Calendar.MONTH);
        int month2 = c2.get(Calendar.MONTH);
        int day1 = c1.get(Calendar.DAY_OF_MONTH);
        int day2 = c2.get(Calendar.DAY_OF_MONTH);
        // 获取年的差值 
        int yearInterval = year1 - year2;
        // 如果 d1的 月-日 小于 d2的 月-日 那么 yearInterval-- 这样就得到了相差的年数
        if (month1 < month2 || month1 == month2 && day1 < day2) {
            yearInterval--;
        }
        // 获取月数差值
        int monthInterval = (month1 + 12) - month2;
        if (day1 < day2) {
            monthInterval--;
        }
        monthInterval %= 12;
        int monthsDiff = Math.abs(yearInterval * 12 + monthInterval);
        return monthsDiff;
    }
}