package com.mes.util;

import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.concurrent.TimeUnit;

public class CommonUtils {

    public static String getDateByBefor(int ngTime) {
        try{
            Calendar beforeTime = Calendar.getInstance();
            beforeTime.add(Calendar.MINUTE, -ngTime);// 5分钟之前的时间
            Date beforeD = beforeTime.getTime();
            String before5 = new SimpleDateFormat("yyyyMMddHHmmss").format(beforeD);
            return before5;
        }catch (Exception e){
            return null;
        }
    }

    public static long jsSecond(String timeStr1,String timeStr2){
//        String timeStr1 = "2023-01-01 12:10:00";
//        String timeStr2 = "2023-01-01 12:05:00";
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        try {
            Date date1 = sdf.parse(timeStr1);
            Date date2 = sdf.parse(timeStr2);
            long diffInMillies = Math.abs(date2.getTime() - date1.getTime());
            long seconds = TimeUnit.MILLISECONDS.toSeconds(diffInMillies);
            return seconds;
        } catch (Exception e) {
            e.printStackTrace();
            return 0;
        }
    }

    /**
     * 判段工件码是否符合要求
     * @param sn  工件码
     * @param spec  规格
     * @param specStart  规格开始位置
     * @param length   码长度
     * @return
     */
    public static Boolean checkSnByModel(String sn, String spec,Integer specStart, Integer length) {
        if(sn.length()!=length){
            return false;
        }
        Integer start=specStart - 1;
        Integer end=start + spec.length();
        if(length > end){
            String newSpec = sn.substring(start,end);
            if(newSpec.equals(spec)){
                return true;
            }
        }

        return false;
    }


}