package com.gkhy.safePlatform.safeCheck.aspect;


import com.gkhy.safePlatform.safeCheck.annotation.RepeatedClick;
import com.gkhy.safePlatform.safeCheck.exception.RepeatedClickException;
import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;
import org.aspectj.lang.reflect.MethodSignature;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.stereotype.Component;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;

import javax.servlet.http.HttpServletRequest;
import java.util.concurrent.TimeUnit;

@Component
@Aspect
public class RepeatedClickAspect {

    @Autowired
    private RedisTemplate redisTemplate;

    @Before("@annotation(com.gkhy.safePlatform.safeCheck.annotation.RepeatedClick)")
    @ResponseBody
    public void beforeRepeatedClick(JoinPoint joinPoint){
        ServletRequestAttributes requestAttributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
        HttpServletRequest arg = requestAttributes.getRequest();
        MethodSignature methodSignature = (MethodSignature) joinPoint.getSignature();
        RepeatedClick annotation = methodSignature.getMethod().getAnnotation(RepeatedClick.class);
        if (annotation != null){
            int clickTime = annotation.clickTime();
            String errorMessage = annotation.errorMessage();
            String key = arg.getRemoteAddr() + arg.getRequestURI() + "_" + arg.getMethod();
            if (redisTemplate.hasKey(key)){
                throw new RepeatedClickException(errorMessage);
            }else {
                redisTemplate.opsForValue().set(key,"",clickTime, TimeUnit.SECONDS);
            }
        }
    }
}