package com.zhujizheng.IHome.util;

import org.apache.commons.codec.digest.DigestUtils;
import org.springframework.stereotype.Component;

import java.time.Instant;
import java.time.temporal.ChronoUnit;
import java.util.HashMap;
import java.util.Map;
import java.util.Random;

/**
 * Created with IntelliJ IDEA.
 *
 * @author: neeson
 * Date: 2018/3/21
 * Time: 15:23
 * Description:
 */
@Component
public class CodeUtil {


    /**
     * 生成6位验证码
     * @return
     */
    public  String createSmsCode(){

        Random random = new Random();

        StringBuffer code = new StringBuffer(4);

        for (int i = 0; i < 4; i++) {
            code.append(random.nextInt(10)) ;
        }

        return code.toString();
    }

    public int dealInt(int var){
        if (var == -1){
            var = Integer.MAX_VALUE;
        }
        return var;
    }

    public long dealLong(long var){
        if (var == -1){
            var = Long.MAX_VALUE;
        }
        return var;
    }

    /**
     * 创建唯一Id
     * @param len
     * @return
     */
    public  String createUUID(int len) {

        String uuid = java.util.UUID.randomUUID().toString()
                .replaceAll("-", "");
        return uuid.substring(0, len);
    }


}