package com.kmall.admin.aop;

import com.kmall.admin.annotation.NoRepeatSubmit;
import com.kmall.common.utils.RRException;
import com.kmall.manager.manager.redis.JedisUtil;
import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Component;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;

import javax.servlet.http.HttpServletRequest;
import java.util.Calendar;
import java.util.Objects;

/**
 * @author  hj
 * @createDate 2021-04-29
 */
@Aspect
@Component
@SuppressWarnings("all")
public class RepeatSubmitAspect {
    private final static Logger logger = LoggerFactory.getLogger(RepeatSubmitAspect.class);
    public static final String KEYPREX = "noRpeat:user:";

    /**
     * 进行接口防重复操作处理
     *
     * @param pjp
     * @param noRepeatSubmit
     * @return
     */
    @Around("execution(* com.kmall.admin.controller.*.*(..)) && @annotation(noRepeatSubmit) ")
    public Object around(ProceedingJoinPoint pjp, NoRepeatSubmit noRepeatSubmit) throws Throwable {
        try {
            //获取request
            HttpServletRequest request = ((ServletRequestAttributes) Objects.requireNonNull(RequestContextHolder.getRequestAttributes())).getRequest();
            //拿到token和请求路径
            StringBuilder sb = new StringBuilder();
//            sb.append(KEYPREX).append(request.getHeader("token").toString()).append(request.getRequestURI().toString());
            sb.append(KEYPREX).append(request.getRequestURI().toString());
            //获取现在时间
//            long now = System.currentTimeMillis();
            long now = Calendar.getInstance().getTimeInMillis();
            if (JedisUtil.exists(sb.toString())) {
                //上次请求时间
//                long lastTime = Long.valueOf(redisTemplate.opsForValue().get(sb.toString()).toString());
                long lastTime = Long.valueOf(JedisUtil.get(sb.toString()).toString());
                // 如果现在距离上次提交时间小于设置的默认时间 则 判断为重复提交  否则 正常提交 -> 进入业务处理
                if ((now - lastTime) > noRepeatSubmit.lockTime()) {
                    //重新记录时间 10分钟过期时间
//                    redisTemplate.opsForValue().set(sb.toString(), String.valueOf(now), 10, TimeUnit.MINUTES);
                    JedisUtil.set(sb.toString(), String.valueOf(now), 10);
                    //处理业务
                    Object result = pjp.proceed();
                    return result;
                } else {
                    throw new RRException("点击的太快了,请慢一点!");
                }
            } else {
                //第一次操作
                JedisUtil.set(sb.toString(), String.valueOf(now), 10);
//                redisTemplate.opsForValue().set(sb.toString(),String.valueOf(now),10, TimeUnit.MINUTES);
                Object result = pjp.proceed();
                return result;
            }
        } catch (Throwable e) {
            logger.error("校验表单重复提交时异常: {}", e.getMessage());
            throw new RRException("校验重复提交时异常");
        }
    }
}