package com.ydtech.aop;

import com.alibaba.fastjson.JSONObject;
import com.ydtech.core.page.HttpResult;
import com.ydtech.modules.admin.model.SysLog;
import com.ydtech.modules.admin.service.SysLogService;
import com.ydtech.security.utils.JwtTokenUtils;
import io.swagger.annotations.ApiOperation;
import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.*;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
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.lang.reflect.Method;
import java.util.Date;

/**
 * 日志切面类
 * AOP切面，记录方法的调用，入参以及出參
 */
@Aspect
@Component
public class LogAspect {

    private final static Logger LOGGER = LoggerFactory.getLogger(LogAspect.class);

    @Autowired
    private GlobalExceptionHandler exceptionHandle;
    @Autowired
    private SysLogService sysLogService;


    @Pointcut("execution(public * com.ydtech.modules.*.controller.*.*(..)) ")
    public void log() {

    }

    @Before("log()")
    public void doBefore(JoinPoint joinPoint) {
        ServletRequestAttributes attributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
        HttpServletRequest request = attributes.getRequest();

        //请求人 url method ip class_method
        SysLog sysLog = new SysLog(JwtTokenUtils.getUsernameFromRequest(request), request.getRequestURL().toString(), request.getMethod(), joinPoint.getSignature().getDeclaringTypeName(), joinPoint.getSignature().getName(), request.getRemoteAddr(), new Date());

        try {
            //获取注解注释
            String annotationValue = getAnnotationValue(joinPoint);
            sysLog.setDescription(annotationValue);

            //获取请求参数
            Object[] args = joinPoint.getArgs();
            for (Object obj : args) {
                if (null != obj && (obj.getClass().getName().startsWith("com.ydtech.modules") || obj instanceof String)) {
                    sysLog.setParams(JSONObject.toJSON(obj).toString());
                }
            }
            if (request.getMethod().equals("GET")) {
                sysLog.setParams(request.getQueryString());
            }
            sysLog.preInsert();
            sysLogService.insert(sysLog);
        } catch (ClassNotFoundException e) {
            e.printStackTrace();
        }

    }

    @Around("log()")
    public Object doAround(ProceedingJoinPoint proceedingJoinPoint) throws Throwable {
        HttpResult result = null;
        try {

        } catch (Exception e) {
            return exceptionHandle.exceptionGet(e);
        }
        if (result == null) {
            return proceedingJoinPoint.proceed();
        } else {
            return result;
        }
    }

    @AfterReturning(pointcut = "log()", returning = "object")//打印输出结果
    public void doAfterReturing(Object object) {
        if (object != null) {
            LOGGER.info("response={}", object.toString());
        }
    }

    private String getAnnotationValue(JoinPoint joinPoint) throws ClassNotFoundException {
        //反射获取类
        Class<?> clazz = Class.forName(joinPoint.getSignature().getDeclaringTypeName());
        //通过方法名反射获取method
        Method[] declaredMethods = clazz.getDeclaredMethods();
        //请求方法名
        String requestName = joinPoint.getSignature().getName();

        for (Method method : declaredMethods) {
            String name = method.getName();
            //获取方法上的注解
            if (name.equals(requestName)) {
                ApiOperation annotation = method.getAnnotation(ApiOperation.class);
                if (annotation != null) {
                    return annotation.value();
                }
            }
        }
        return null;
    }
}