package com.kidgrow.zuul.filter;

import com.netflix.zuul.ZuulFilter;
import com.netflix.zuul.context.RequestContext;
import com.netflix.zuul.exception.ZuulException;
import com.kidgrow.common.exception.GlobalExceptionHandler;
import com.kidgrow.common.model.ResultBody;
import com.kidgrow.common.utils.WebUtils;
import lombok.extern.slf4j.Slf4j;
import org.springframework.cloud.netflix.zuul.filters.support.FilterConstants;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 * 石家庄喜高科技有限责任公司 版权所有 © Copyright 2020<br>
 *
 * @Description: 数字验签前置过滤器<br>
 * @Project: <br>
 * @CreateDate: Created in 2020/2/4 14:49 <br>
 * @Author: <a href="4345453@kidgrow.com">liuke</a>
 */
@Slf4j
public class ZuulErrorFilter extends ZuulFilter {

    public ZuulErrorFilter() {
    }

    @Override
    public String filterType() {
        return FilterConstants.ERROR_TYPE;
    }

    @Override
    public int filterOrder() {
        return FilterConstants.SEND_ERROR_FILTER_ORDER;
    }


    @Override
    public boolean shouldFilter() {
        return true;
    }

    @Override
    public Object run() throws ZuulException {
        RequestContext ctx = RequestContext.getCurrentContext();
        HttpServletRequest request = ctx.getRequest();
        HttpServletResponse response = ctx.getResponse();
        Exception exception = new Exception(ctx.getThrowable());
        ResultBody resultBody = GlobalExceptionHandler.resolveException(exception,request.getRequestURI());
        WebUtils.writeJson(response, resultBody);

        ctx.set("error.status_code", HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
        ctx.set("error.exception", exception.getCause());

        return response;
    }
}