package com.usky.exception;

import com.usky.utils.Result;
import com.usky.utils.ServletUtils;
import lombok.extern.slf4j.Slf4j;
import org.apache.shiro.authz.AuthorizationException;
import org.apache.shiro.util.PermissionUtils;
import org.springframework.web.HttpRequestMethodNotSupportedException;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.RestControllerAdvice;
import org.springframework.web.servlet.ModelAndView;

import javax.servlet.http.HttpServletRequest;

/**
 * @author laowo
 * @version v1.0
 * @date 2020/11/10 15:00
 * @description 全局异常处理
 **/
@RestControllerAdvice
@Slf4j
public class GloableExceptionResolver {

//    @ExceptionHandler(UnauthorizedException.class)
//    public void calUnauthorizedException(UnauthorizedException e) {
//        PrintWriter writer = null;
//        try {
//            //判断是否是ajax
//            ServletRequestAttributes requestAttributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
//            HttpServletRequest request = requestAttributes.getRequest();
//            HttpServletResponse response = requestAttributes.getResponse();
//            String header = request.getHeader("X-Requested-With");
//            if (StringUtils.isNoneBlank(header) && "XMLHttpRequest".equalsIgnoreCase(header)) {
//                response.setCharacterEncoding("UTF-8");
//                response.setContentType("application/json; charset=utf-8");
//                writer = response.getWriter();
//                writer.write("{\"status\":401,\"message\":\"无权访问\"}");
//            } else {
//                String contextPath = request.getContextPath();
//                if ("/".equals(contextPath))
//                    contextPath = "";
//                response.sendRedirect(request.getContextPath() + "/page/toDenied");
//            }
//        } catch (IOException io) {
//            io.printStackTrace();
//        } finally {
//            if (writer != null)
//                writer.close();
//        }
//    }
//
//    @ExceptionHandler(UnauthenticatedException.class)
//    public void calUnauthorizedException(UnauthenticatedException e) {
//        PrintWriter writer = null;
//        try {
//            //判断是否是异步请求
//            ServletRequestAttributes requestAttributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
//            HttpServletRequest request = requestAttributes.getRequest();
//            HttpServletResponse response = requestAttributes.getResponse();
//            String header = request.getHeader("X-Requested-With");
//            if (StringUtils.isNoneBlank(header) && "XMLHttpRequest".equalsIgnoreCase(header)) {
//                response.setCharacterEncoding("UTF-8");
//                response.setContentType("application/json; charset=utf-8");
//                writer = response.getWriter();
//                writer.write("{\"status\":302,\"message\":\"请前去登录\"}");
//            } else {
//                String contextPath = request.getContextPath();
//                if ("/".equals(contextPath))
//                    contextPath = "";
//                response.sendRedirect(request.getContextPath() + "/login/");
//            }
//        } catch (IOException io) {
//            io.printStackTrace();
//        } finally {
//            if (writer != null)
//                writer.close();
//        }
//    }
//
//
//    @ExceptionHandler(BaseException.class)
//    public Object businessException(HttpServletRequest request, BaseException e) {
//        log.error(e.getMessage(), e);
//        if (ServletUtils.isAjaxRequest(request)) {
//            return Result.error(e.getMessage());
//        } else {
//
//            //  ModelAndView modelAndView = new ModelAndView(); //TODO 异常页面跳转设置
//            //  modelAndView.addObject("errorMessage", e.getMessage());
//            //  modelAndView.setViewName("error/business");
//            //  return modelAndView;
//
//            return null;
//        }
//    }
//
//    @ExceptionHandler(UnavailableSecurityManagerException.class)
//    @ResponseBody
//    public Object UnavailableSecurityManagerException(HttpServletRequest request, BaseException e) {
//        log.error(e.getMessage(), e);
//        if (ServletUtils.isAjaxRequest(request)) {
//            return Result.error("用户信息异常，请重新登录");
//        } else {
//
//            //  ModelAndView modelAndView = new ModelAndView(); //TODO 异常页面跳转设置
//            //  modelAndView.addObject("errorMessage", e.getMessage());
//            //  modelAndView.setViewName("error/business");
//            //  return modelAndView;
//
//            return null;
//        }
//    }
//
//

    /**
     * 权限校验失败 如果请求为ajax返回json，普通请求跳转页面
     */
    @ExceptionHandler(AuthorizationException.class)
    public Object handleAuthorizationException(HttpServletRequest request, AuthorizationException e)
    {
        log.error(e.getMessage(), e);
        if (ServletUtils.isAjaxRequest(request))
        {
            return Result.error("权限错误！");
        }
        else
        {
//            ModelAndView modelAndView = new ModelAndView();
//            modelAndView.setViewName("error/unauth");
//            return modelAndView;
            return Result.error("权限错误！");
        }
    }



    /**
     * 请求方式不支持
     */
    @ExceptionHandler({ HttpRequestMethodNotSupportedException.class })
    public Result handleException(HttpRequestMethodNotSupportedException e)
    {
        log.error(e.getMessage(), e);
        return Result.error("不支持' " + e.getMethod() + "'请求");
    }

    /**
     * 拦截未知的运行时异常
     */
    @ExceptionHandler(RuntimeException.class)
    public Result notFount(RuntimeException e)
    {
        log.error("运行时异常:", e);
        return Result.error("运行时异常:" + e.getMessage());
    }

    /**
     * 系统异常
     */
    @ExceptionHandler(Exception.class)
    public Result handleException(Exception e)
    {
        log.error(e.getMessage(), e);
        return Result.error("服务器错误，请联系管理员");
    }

    /**
     * 业务异常
     */
    @ExceptionHandler(BusinessException.class)
    public Object businessException(HttpServletRequest request, BusinessException e)
    {
        log.error(e.getMessage(), e);
        if (ServletUtils.isAjaxRequest(request))
        {
            return Result.error(e.getMessage());
        }
        else
        {
           // ModelAndView modelAndView = new ModelAndView();
           // modelAndView.addObject("errorMessage", e.getMessage());
           // modelAndView.setViewName("error/business");
           // return modelAndView;
            return Result.error(e.getMessage());
        }
    }


}