package com.nowcoder.community.aspect;

import jakarta.servlet.http.HttpServletRequest;
import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;
import org.aspectj.lang.annotation.Pointcut;
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 java.text.SimpleDateFormat;
import java.util.Date;

@Component
@Aspect
public class ServiceLogAspect {
    private static final Logger logger = LoggerFactory.getLogger(ServiceLogAspect.class);

    @Pointcut("execution (* com.nowcoder.community.service.*.*(..))")  // 对所有业务记录日志
    public void pointcut(){}

    @Before("pointcut()")
    public void before(JoinPoint joinPoint){
        // 用户 1.2.3.4 在 xxx 时间 访问了 xxx 方法
        ServletRequestAttributes attributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
        if(attributes == null){
            return;
        }
        HttpServletRequest request = attributes.getRequest();
        String ip = request.getRemoteHost();
        String now = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(new Date());
        String target = joinPoint.getSignature().getDeclaringTypeName() + "." +
                joinPoint.getSignature().getName();  // 类名.方法名
        logger.info(String.format("用户 [%s] 在 [%s] 访问了 [%s]", ip, now, target));
    }
}
