package com.gkhy.labRiskManage.config.license;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;

import javax.servlet.*;
import javax.servlet.annotation.WebFilter;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

//@Component
//@WebFilter(urlPatterns = "/*", filterName = "LicenseFilter")
public class LicenseFilter implements Filter {

//    @Autowired
    private LicenseManageService licenseManageService;

    @Override
    public void init(FilterConfig filterConfig) throws ServletException {
        Filter.super.init(filterConfig);
    }

    @Override
    public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {
        HttpServletRequest reqs = (HttpServletRequest) servletRequest;
        HttpServletResponse response = (HttpServletResponse) servletResponse;
        String reqUri = reqs.getRequestURI().toString();
        //1、选择过滤的业务系统接口路径
        String[] uris = reqUri.split("/");
        if(uris.length < 2)
            filterChain.doFilter(servletRequest,servletResponse);
        String licenseBiz  = uris[1];
        if(licenseBiz == null)
            filterChain.doFilter(servletRequest,servletResponse);
        //默认所有业务均需要授权访问
        boolean checkFlag = true;
        if(LicenseBizWhiteEnum.parse(licenseBiz) != null){
            //业务接口在授权白名单清单中，不需要授权访问
            checkFlag = false;
        }
        //2、检查授权
        if(checkFlag == true){
            if(licenseManageService.isActiveLicense()){
                filterChain.doFilter(servletRequest,servletResponse);
                //有授权，放行
            }else {
                //没有授权，拦截
//                ResultDto resultDto = new ResultDto<>();
//                resultDto.setCode(401);
//                resultDto.setMsg("系统授权到期，请联系管理员");
                response.setContentType("text/html;charset=UTF-8");
                response.getWriter().print("系统授权到期，请联系管理员");
                response.setStatus(401);
            }
        }else {
            filterChain.doFilter(servletRequest,servletResponse);
        }
    }

    @Override
    public void destroy() {
        Filter.super.destroy();
    }
}