package com.xcong.excoin.common.aspect;

import com.xcong.excoin.common.annotation.SubmitRepeat;
import com.xcong.excoin.common.entity.FebsResponse;
import com.xcong.excoin.common.exception.FebsException;
import com.xcong.excoin.common.utils.RedisUtils;
import com.xcong.excoin.system.entity.User;
import lombok.extern.slf4j.Slf4j;
import org.apache.shiro.SecurityUtils;
import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.*;
import org.springframework.stereotype.Component;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;

import javax.annotation.Resource;
import javax.servlet.http.HttpServletRequest;

/**
 * @author wzy
 * @date 2020-04-16 22:01
 **/
@Slf4j
@Aspect
@Component
public class SubmitRepeatAspect {

    @Resource
    private RedisUtils redisUtil;

    private String key;

    @Pointcut("@annotation(submitRepeat)")
    public void submitRepeatPointCut(SubmitRepeat submitRepeat) {

    }

    @Before("submitRepeatPointCut(submitRepeat)")
    public void before(SubmitRepeat submitRepeat) {
    }

    @Around("submitRepeatPointCut(submitRepeat)")
    public Object around(ProceedingJoinPoint joinPoint, SubmitRepeat submitRepeat) throws Throwable {
        ServletRequestAttributes attributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
        HttpServletRequest request = attributes.getRequest();
        String uri = request.getRequestURI();
        User user = (User) SecurityUtils.getSubject().getPrincipal();
        key = user.getId() + "_" + uri;
        boolean flag = redisUtil.setNotExist(key, "1", 5);
        log.info("#mid : {}, flag : {}#", user.getId(), flag);
        if (flag) {
            Object result = joinPoint.proceed();
            redisUtil.del(key);
            return result;
        } else {
            return new FebsResponse().fail().message("请勿重复点击");
        }
    }

    @After("submitRepeatPointCut(submitRepeat)")
    public void after(SubmitRepeat submitRepeat) {

    }

    @AfterThrowing(throwing = "ex", pointcut = "submitRepeatPointCut(submitRepeat)")
    public void afterThrows(JoinPoint jp, Exception ex, SubmitRepeat submitRepeat) throws Exception {
        log.error("#submit repeat error:#", ex);
        redisUtil.del(key);
        throw new Exception("系统繁忙");
    }
}