package com.ximai.mes.config;

import cn.hutool.core.bean.BeanUtil;
import cn.hutool.core.text.StrJoiner;
import cn.hutool.core.util.ObjectUtil;
import com.alibaba.fastjson.JSON;
import com.google.common.base.Joiner;
import com.ximai.common.annotation.ApiLog;
import com.ximai.common.annotation.Log;
import com.ximai.common.enums.BusinessStatus;
import com.ximai.common.enums.HttpMethod;
import com.ximai.common.utils.ServletUtils;
import com.ximai.common.utils.data.StringUtils;
import com.ximai.common.utils.ip.AddressUtils;
import com.ximai.common.utils.ip.IpUtils;
import com.ximai.common.utils.spring.SpringUtils;
import com.ximai.framework.manager.AsyncManager;
import com.ximai.system.domain.SysApiLog;
import com.ximai.system.service.ISysApiLogService;
import io.swagger.annotations.ApiOperation;
import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.annotation.AfterReturning;
import org.aspectj.lang.annotation.AfterThrowing;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.reflect.MethodSignature;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Component;
import org.springframework.validation.BindingResult;
import org.springframework.web.multipart.MultipartFile;
import org.springframework.web.servlet.HandlerMapping;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.lang.reflect.Method;
import java.util.Collection;
import java.util.Map;
import java.util.TimerTask;

/**
 * 操作日志记录处理
 */
@Aspect
@Component
public class ApiLogAspect {
    private static final Logger log = LoggerFactory.getLogger(ApiLogAspect.class);

    /**
     * 处理完请求后执行
     *
     * @param joinPoint 切点
     */
    @AfterReturning(pointcut = "@annotation(apiLog)", returning = "jsonResult")
    public void doAfterReturning(JoinPoint joinPoint, ApiLog apiLog, Object jsonResult) {
        MethodSignature methodSignature = (MethodSignature) joinPoint.getSignature();
        Method method = methodSignature.getMethod();
        ApiLog controllerLog = method.getAnnotation(ApiLog.class);
        ApiOperation apiOperation = method.getAnnotation(ApiOperation.class);
        LogInfo logInfo = new LogInfo();
        if (controllerLog != null) {
            logInfo = this.convertLogInfo(controllerLog);
        }
        if (apiOperation != null) {
            logInfo.setTitle(apiOperation.value());
        }
        handleLog(joinPoint, logInfo, null, jsonResult);
    }

    /**
     * 拦截异常操作
     *
     * @param joinPoint 切点
     * @param e         异常
     */
    @AfterThrowing(value = "@annotation(apiLog)", throwing = "e")
    public void doAfterThrowing(JoinPoint joinPoint,ApiLog apiLog, Exception e) {
        MethodSignature methodSignature = (MethodSignature) joinPoint.getSignature();
        Method method = methodSignature.getMethod();
        ApiLog controllerLog = method.getAnnotation(ApiLog.class);
        ApiOperation apiOperation = method.getAnnotation(ApiOperation.class);
        LogInfo logInfo = new LogInfo();
        if (controllerLog != null) {
            logInfo = this.convertLogInfo(controllerLog);
        }
        if (apiOperation != null) {
            logInfo.setTitle(apiOperation.value());
        }
        handleLog(joinPoint, logInfo, e, null);
    }

    private LogInfo convertLogInfo(ApiLog controllerLog) {
        LogInfo logInfo = new LogInfo();
        logInfo.setBusinessType(controllerLog.businessType());
        logInfo.setSaveRequestData(controllerLog.isSaveRequestData());
        logInfo.setSaveResponseData(controllerLog.isSaveResponseData());
        logInfo.setTitle(controllerLog.title());
        return logInfo;
    }

    protected void handleLog(final JoinPoint joinPoint, LogInfo controllerLog, final Exception e, Object jsonResult) {
        try {
            // *========数据库日志=========*//
            SysApiLog operLog = new SysApiLog();
            operLog.setStatus(BusinessStatus.SUCCESS.ordinal());
            // 请求的地址
            HttpServletRequest request = ServletUtils.getRequest();
            if(ObjectUtil.isNotEmpty(request)){
                String ip = IpUtils.getIpAddr(request);
                operLog.setOperIp(ip);
                operLog.setOperUrl(request.getRequestURI());
            }
            if (e != null) {
                operLog.setStatus(BusinessStatus.FAIL.ordinal());
                operLog.setErrorMsg(StringUtils.substring(e.getMessage(), 0, 2000));
            }

            // 设置方法名称
            String className = joinPoint.getSignature().getDeclaringType().getName();
            String methodName = joinPoint.getSignature().getName();
            operLog.setMethod(className + "." + methodName + "()");
            // 设置请求方式
            if(ObjectUtil.isNotEmpty(request)) {
                operLog.setRequestMethod(request.getMethod());
            }
            // 处理设置注解上的参数
            getControllerMethodDescription(joinPoint, controllerLog, operLog, jsonResult);
            // 保存数据库
            AsyncManager.me().execute(new TimerTask() {
                @Override
                public void run() {
                    // 远程查询操作地点
                    operLog.setOperLocation(AddressUtils.getRealAddressByIP(operLog.getOperIp()));
                    SpringUtils.getBean(ISysApiLogService.class).insertApiLog(operLog);
                }
            });
        } catch (Exception exp) {
            // 记录本地异常日志
            log.error("ApiLog前置通知异常:", exp);
        }
    }

    /**
     * 获取注解中对方法的描述信息 用于Controller层注解
     *
     * @param log     日志
     * @param operLog 操作日志
     * @throws Exception
     */
    public void getControllerMethodDescription(JoinPoint joinPoint, LogInfo log, SysApiLog operLog, Object jsonResult) throws Exception {
        // 设置action动作
        operLog.setBusinessType(log.getBusinessType().ordinal());
        // 设置标题
        operLog.setTitle(log.getTitle());
        // 是否需要保存request，参数和值
        if (log.isSaveRequestData()) {
            // 获取参数的信息，传入到数据库中。
            setRequestValue(joinPoint, operLog);
        }
        // 是否需要保存response，参数和值
        if (log.isSaveResponseData() && StringUtils.isNotNull(jsonResult)) {
            operLog.setJsonResult(JSON.toJSONString(jsonResult));
        }
    }

    /**
     * 获取请求的参数，放到log中
     *
     * @param operLog 操作日志
     * @throws Exception 异常
     */
    private void setRequestValue(JoinPoint joinPoint, SysApiLog operLog) {
        argsArrayToString(operLog, joinPoint.getArgs());
    }

    /**
     * 参数拼装
     */
    private String argsArrayToString(SysApiLog operLog, Object[] paramsArray) {
        String params = "";
        if (paramsArray != null && paramsArray.length > 0) {
            int i=1;
            StrJoiner joiner = StrJoiner.of(",");
            for (Object o : paramsArray) {
                joiner.append(o.getClass().getName());
                if (StringUtils.isNotNull(o) && !isFilterObject(o)) {
                    try {
                        Object jsonObj = JSON.toJSON(o);
                        BeanUtil.setFieldValue(operLog,"operParam"+i, jsonObj);
                    } catch (Exception e) {
                        e.printStackTrace();
                    }
                }
                i++;
            }
            operLog.setParamType(joiner.toString());
        }
        return params.trim();
    }

    /**
     * 判断是否需要过滤的对象。
     *
     * @param o 对象信息。
     * @return 如果是需要过滤的对象，则返回true；否则返回false。
     */
    @SuppressWarnings("rawtypes")
    public boolean isFilterObject(final Object o) {
        Class<?> clazz = o.getClass();
        if (clazz.isArray()) {
            return clazz.getComponentType().isAssignableFrom(MultipartFile.class);
        } else if (Collection.class.isAssignableFrom(clazz)) {
            Collection collection = (Collection) o;
            for (Object value : collection) {
                return value instanceof MultipartFile;
            }
        } else if (Map.class.isAssignableFrom(clazz)) {
            Map map = (Map) o;
            for (Object value : map.entrySet()) {
                Map.Entry entry = (Map.Entry) value;
                return entry.getValue() instanceof MultipartFile;
            }
        }
        return o instanceof MultipartFile || o instanceof HttpServletRequest || o instanceof HttpServletResponse
                || o instanceof BindingResult;
    }
}
