package me.zhengjie.aspect;

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.serializer.SerializerFeature;
import lombok.extern.slf4j.Slf4j;


import org.apache.commons.lang3.StringUtils;
import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.Signature;
import org.aspectj.lang.annotation.AfterReturning;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;
import org.aspectj.lang.annotation.Pointcut;
import org.aspectj.lang.reflect.CodeSignature;
import org.slf4j.MDC;
import org.springframework.stereotype.Component;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;
import org.springframework.web.multipart.MultipartFile;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.util.HashMap;
import java.util.Map;
import java.util.Objects;
import java.util.UUID;

@Slf4j
@Aspect
@Component
public class LogRequestParam {
	

	@Pointcut("execution(* me.zhengjie.application.*.controller..*.*(..))")
	public void pointCut() {
	}

	

	@Before(value = "pointCut()")
	public void doBefore(JoinPoint joinPoint) {
		try {

			ServletRequestAttributes servletRequestAttributes = (ServletRequestAttributes) RequestContextHolder
					.getRequestAttributes();
			if (Objects.isNull(servletRequestAttributes)) {
				return;
			}
			HttpServletRequest request = servletRequestAttributes.getRequest();
			
			String ip = request.getRemoteAddr();

			String uri = request.getRequestURI();

			Object[] parameterValues = joinPoint.getArgs();
			int parameterValuesLength = parameterValues.length;
			if (parameterValuesLength == 0) {
				log.debug("[请求参数] - 无");
				return;
			}
			Signature signature = joinPoint.getSignature();
			if (Objects.isNull(signature)) {
				return;
			}
			String[] parameterNames = ((CodeSignature) signature).getParameterNames();
			if (Objects.isNull(parameterNames) || parameterNames.length != parameterValuesLength) {
				return;
			}

			Map<String, Object> params = new HashMap<>(4);
			for (int i = 0; i < parameterNames.length; i++) {
				Object o = parameterNames[i];
				if (o instanceof MultipartFile || o instanceof MultipartFile[] || o instanceof HttpServletRequest
						|| o instanceof HttpServletResponse) {
					continue;
				}
				params.put(parameterNames[i], parameterValues[i]);
			}
			Object[] obj = { ip, uri, JSON.toJSONString(params, SerializerFeature.WriteMapNullValue) };
			log.info("[request] - ip: {} , requestUrl: {} ,param: {} ", obj);
		} catch (Exception e) {
			e.printStackTrace();
		}

	}

	@AfterReturning(returning = "result", pointcut = "pointCut() ")
	public void doAfterReturning(Object result) {
		try {
			ServletRequestAttributes servletRequestAttributes = (ServletRequestAttributes) RequestContextHolder
					.getRequestAttributes();
			if (Objects.isNull(servletRequestAttributes)) {
				return;
			}
			HttpServletResponse response = servletRequestAttributes.getResponse();
			if (Objects.isNull(response)) {
				return;
			}
			int status = response.getStatus();
			HttpServletRequest request = servletRequestAttributes.getRequest();

			String uri = request.getRequestURI();
			Object obj[] = { status, uri, JSON.toJSONString(result, SerializerFeature.WriteMapNullValue) };
			log.info("[reponse] - status: {} , url:{} ,result:{}", obj);
		} catch (Exception e) {
			e.printStackTrace();
		}
	}
}