package com.kidgrow.zuul.filter;

import cn.hutool.core.collection.CollectionUtil;
import com.kidgrow.common.constant.CommonConstant;
import com.kidgrow.common.constant.SecurityConstants;
import com.kidgrow.common.model.SysOrganization;
import com.kidgrow.common.model.SysUser;
import com.kidgrow.common.utils.AddrUtil;
import com.netflix.zuul.ZuulFilter;
import com.netflix.zuul.context.RequestContext;
import eu.bitwalker.useragentutils.UserAgent;
import lombok.extern.slf4j.Slf4j;
import org.springframework.cloud.netflix.zuul.filters.support.FilterConstants;
import org.springframework.security.authentication.AnonymousAuthenticationToken;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.context.SecurityContextHolder;
import org.springframework.security.oauth2.provider.OAuth2Authentication;
import org.springframework.stereotype.Component;

import javax.servlet.http.HttpServletRequest;
import java.util.List;

import static org.springframework.cloud.netflix.zuul.filters.support.FilterConstants.FORM_BODY_WRAPPER_FILTER_ORDER;

/**
 * 石家庄喜高科技有限责任公司 版权所有 © Copyright 2020<br>
 *
 * @Description: 将认证用户的相关信息放入header中, 后端服务可以直接读取使用<br>
 * @Project: <br>
 * @CreateDate: Created in 2020/2/21 10:12 <br>
 * @Author: <a href="4345453@kidgrow.com">liuke</a>
 */
@Slf4j
@Component
public class UserInfoHeaderFilter extends ZuulFilter {
    @Override
    public String filterType() {
        return FilterConstants.PRE_TYPE;
    }

    @Override
    public int filterOrder() {
        return FORM_BODY_WRAPPER_FILTER_ORDER - 1;
    }

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

    @Override
    public Object run() {
        Authentication authentication = SecurityContextHolder.getContext().getAuthentication();
        if (authentication != null && !(authentication instanceof AnonymousAuthenticationToken)) {
            Object principal = authentication.getPrincipal();
            RequestContext ctx = RequestContext.getCurrentContext();
            HttpServletRequest req = ctx.getRequest();
            UserAgent userAgent = UserAgent.parseUserAgentString(req.getHeader("User-Agent"));
            String tenantId="";
            //客户端模式只返回一个clientId
            if (principal instanceof SysUser) {
                SysUser user = (SysUser)authentication.getPrincipal();
                ctx.addZuulRequestHeader(SecurityConstants.USER_ID_HEADER, String.valueOf(user.getId()));
                ctx.addZuulRequestHeader(SecurityConstants.USER_HEADER, user.getUsername());
                List<SysOrganization> organizations = (List<SysOrganization>)user.getOrganizations();
                //如果有组织架构
                if(organizations!=null && organizations.size()==2){
                    ctx.addZuulRequestHeader(SecurityConstants.USER_ORG_ID_HEADER,String.valueOf(organizations.get(0).getId()));
                    ctx.addZuulRequestHeader(SecurityConstants.USER_ORG_NAME_HEADER,organizations.get(0).getOrgName());
                    ctx.addZuulRequestHeader(SecurityConstants.USER_DEP_ID_HEADER,String.valueOf(organizations.get(1).getId()));
                    ctx.addZuulRequestHeader(SecurityConstants.USER_DEP_NAME_HEADER,organizations.get(1).getOrgName());
                    tenantId=String.valueOf(organizations.get(0).getId());
                }
//                log.error("用户ID写入Header成功，用户ID为："+String.valueOf(user.getId()));
            }


            OAuth2Authentication oauth2Authentication = (OAuth2Authentication)authentication;
            String clientId = oauth2Authentication.getOAuth2Request().getClientId();

            //保存租户id,租户id根据业务尽进行替换
            switch (clientId){
                case "hospital":
                    tenantId=tenantId;
                    break;
                case "webApp":
                    tenantId="webApp";
                    break;
                default:
                    tenantId=clientId;
                    break;
            }
            ctx.addZuulRequestHeader(CommonConstant.USER_AGENT_BROWSER, userAgent.getBrowser().toString());
            ctx.addZuulRequestHeader(CommonConstant.USER_AGENT_SYSTEM, userAgent.getOperatingSystem().toString());
            ctx.addZuulRequestHeader(CommonConstant.USER_AGENT_IP, AddrUtil.getRemoteAddr(req));

//            UserAgentContextHolder.setUserAgent(AddrUtil.getRemoteAddr(req)+"kidgrow"+userAgent.getBrowser().toString()+"kidgrow"+userAgent.getOperatingSystem().toString());

            ctx.addZuulRequestHeader(SecurityConstants.TENANT_HEADER, tenantId);
            ctx.addZuulRequestHeader(SecurityConstants.CLIENT_HEADER, clientId);
            ctx.addZuulRequestHeader(SecurityConstants.ROLE_HEADER, CollectionUtil.join(authentication.getAuthorities(), ","));
        }
        return null;
    }
}