package com.gkhy.labRiskManage.config.exception;


import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.gkhy.labRiskManage.commons.domain.Result;
import com.gkhy.labRiskManage.commons.enums.ResultCode;
import com.gkhy.labRiskManage.commons.exception.BusinessException;
import com.gkhy.labRiskManage.commons.exception.ExceptionInfo;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.converter.HttpMessageNotReadableException;
import org.springframework.security.access.AccessDeniedException;
import org.springframework.security.core.AuthenticationException;
import org.springframework.web.HttpRequestMethodNotSupportedException;
import org.springframework.web.bind.MethodArgumentNotValidException;
import org.springframework.web.bind.annotation.ControllerAdvice;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.ResponseBody;

import java.time.LocalDateTime;

@ControllerAdvice
public class GlobalExceptionHandler {

    private final Logger logger = LoggerFactory.getLogger(this.getClass());

    @Autowired
    private ObjectMapper objectMapper;

    /**
     * 通用异常
     */
    @ResponseBody
    @ExceptionHandler(value = BusinessException.class)
    public Result businessExceptionHandler(BusinessException e) throws JsonProcessingException {
        ExceptionInfo exceptionInfo = new ExceptionInfo();
        exceptionInfo.setTime(LocalDateTime.now());
        exceptionInfo.setCode(e.getCode());
        exceptionInfo.setMsg(e.getMessage());
        exceptionInfo.setCauseClass(e.getCauseClass());
        logger.error(objectMapper.writeValueAsString(exceptionInfo));
        Result result = new Result();
        result.setCode(e.getCode());
        if(e.getMessage() == null || e.getMessage().isEmpty()){
            ResultCode code = ResultCode.prase(e.getCode());
            if(code != null)
                result.setMsg(code.getDesc());
        }else {
            result.setMsg(e.getMessage());
        }
        return result;
    }


    /**
    * @Description: AuthenticationException
    */

    @ResponseBody
    @ExceptionHandler(value = AuthenticationException.class)
    public Result CHandler(AuthenticationException e) {
        logger.warn(e.getMessage());
        return new Result(ResultCode.BUSINESS_ERROR_PERMISSION_DENIALED);
    }


    /**
     * @Description: AuthenticationException
     */

    @ResponseBody
    @ExceptionHandler(value = AccessDeniedException.class)
    public Result DHandler(AccessDeniedException e) {
        logger.warn(e.getMessage());
        return new Result(ResultCode.BUSINESS_ERROR_PERMISSION_DENIALED);

    }

    /**
    * @Description: 请求方法
    */
    @ResponseBody
    @ExceptionHandler(value = HttpRequestMethodNotSupportedException.class)
    public Result DHandler(HttpRequestMethodNotSupportedException e) {
        Result resultVO = new Result();
        resultVO.setCode(ResultCode.BUSINESS_ERROR_HTTP_METHOD_NOT_SUPPORT.getCode());
        resultVO.setMsg(e.getMessage());
        return resultVO;
    }


    /**
    * @Description: @RequestBody 请求体解析问题
    */
    @ResponseBody
    @ExceptionHandler(value = HttpMessageNotReadableException.class)
    public Result DHandler(HttpMessageNotReadableException e) {
        Result resultVO = new Result();
        resultVO.setCode(ResultCode.PARAM_ERROR_ILLEGAL.getCode());
        resultVO.setMsg(e.getMessage());
        return resultVO;

    }



    @ResponseBody
    @ExceptionHandler(value = Exception.class)
    public Result errorHandler(Exception e) {
        e.printStackTrace();
        logger.error(e.getMessage());
        Result resultVO = new Result();
        resultVO.setCode(ResultCode.SYSTEM_ERROR.getCode());
        return resultVO;
//        return new ResultVO(ResultCodes.SERVER_ERROR);
    }

    /**
     * 处理入参异常
     * @param e
     * @return
     */
    @ResponseBody
    @ExceptionHandler(MethodArgumentNotValidException.class)
    public Result handleMethodArgumentNotValidException(MethodArgumentNotValidException e){
        logger.warn(e.getBindingResult().getFieldError().getDefaultMessage());
        return new Result(ResultCode.PARAM_ERROR,
                e.getBindingResult().getFieldError().getDefaultMessage());
    }

}