package com.kidgrow.zuul.filter;

import cn.hutool.core.collection.CollectionUtil;
import com.alibaba.fastjson.JSON;
import com.kidgrow.common.constant.CommonConstant;
import com.kidgrow.common.constant.SecurityConstants;
import com.kidgrow.common.model.ResultBody;
import com.kidgrow.common.model.SysOrganization;
import com.kidgrow.common.model.SysUser;
import com.kidgrow.common.model.SysUserOrg;
import com.kidgrow.common.utils.AddrUtil;
import com.kidgrow.redis.util.RedisConstant;
import com.kidgrow.redis.util.RedisUtils;
import com.kidgrow.zuul.feign.SysOrganizationService;
import com.kidgrow.zuul.feign.SysUserOrgService;
import com.netflix.zuul.ZuulFilter;
import com.netflix.zuul.context.RequestContext;
import eu.bitwalker.useragentutils.UserAgent;
import lombok.SneakyThrows;
import lombok.extern.slf4j.Slf4j;
import org.hibernate.validator.constraints.NotBlank;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cloud.netflix.zuul.filters.support.FilterConstants;
import org.springframework.data.redis.core.RedisTemplate;
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.*;
import java.util.stream.Collectors;

import static org.springframework.cloud.netflix.zuul.filters.support.FilterConstants.PRE_DECORATION_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     包含了----组织的拦截---<br>
 * @Project: <br>
 * @CreateDate: Created in 2020/2/21 10:12 <br>
 * @Author: <a href="4345453@kidgrow.com">liuke</a>
 */
@Slf4j
@Component
public class OrganizationFilter extends ZuulFilter {
    @Override
    public String filterType() {
        return FilterConstants.PRE_TYPE;
    }

    @Override
    public int filterOrder() {
        return PRE_DECORATION_FILTER_ORDER;
    }

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

    @Autowired
    RedisUtils redisUtils;
    @Autowired
    private SysUserOrgService sysUserOrgService;
    @Autowired
    private SysOrganizationService sysOrganizationService;

    private final String CLIENTID = "webApp";//运营端

    @SneakyThrows
    @Override
    public Object run() {
        Authentication authentication = SecurityContextHolder.getContext().getAuthentication();
        if (authentication != null && !(authentication instanceof AnonymousAuthenticationToken)) {
            Object principal = authentication.getPrincipal();
            RequestContext ctx = RequestContext.getCurrentContext();
            if (principal instanceof SysUser) {
                //运营端进行
                OAuth2Authentication oauth2Authentication = (OAuth2Authentication) authentication;
                String clientId = oauth2Authentication.getOAuth2Request().getClientId();
                if (CLIENTID.equals(clientId)) {
                    SysUser user = (SysUser) authentication.getPrincipal();
                    /**
                     * 将组织中为空的拦截
                     */
                    List<SysUserOrg> sysUserOrgs = getSysUserOrg(user.getId());
                    if (sysUserOrgs == null || sysUserOrgs.isEmpty()) {
                        ctx.setSendZuulResponse(false);
                        ctx.setResponseBody(JSON.toJSONString(ResultBody.fail(1000, "您的组织已经被禁用，请联系管理员")));
                    } else {
                        List<Long> collect = sysUserOrgs.stream().map(e -> e.getOrgId()).collect(Collectors.toList());
                        List<SysOrganization> sysOrganizations = getSysOrganization();
                        List<Long> orgIds = sysOrganizations.stream().filter(e -> e.getEnabled() == true && collect.contains(e.getId())).map(e -> e.getId()).collect(Collectors.toList());
                        if (orgIds == null || orgIds.size() <= 0) {
                            ctx.setSendZuulResponse(false);
                            ctx.setResponseBody(JSON.toJSONString(ResultBody.fail(1000, "您的组织已经被禁用，请联系管理员")));
                        }
                    }
                }
            }
        }
        return null;
    }

    /**
     * 通过userID  获取组织的关系
     *
     * @param str
     * @return
     */
    public List<SysUserOrg> getSysUserOrg(Long str) {
        //获取组织 Redis中获取
        List<SysUserOrg> sysUserOrgs = JSON.parseArray(JSON.toJSONString(redisUtils.hget(RedisConstant.USER_ORGANIZATION, str.toString())), SysUserOrg.class);
        if (sysUserOrgs == null || sysUserOrgs.size() <= 0) {
            //在数据库查询
            Map<String, Object> map = new HashMap<>();
            map.put("user_id", str);
            sysUserOrgs = sysUserOrgService.getListByMap(map);
            redisUtils.hset(RedisConstant.USER_ORGANIZATION, str.toString(), sysUserOrgs);
        }
        return sysUserOrgs;
    }

    public List<SysOrganization> getSysOrganization() {
        Map<Object, Object> hmget = redisUtils.hmget(RedisConstant.ORGANIZATION);
        List<SysOrganization> sysOrganizations = new ArrayList<>();
        if (hmget == null || hmget.size() <= 0) {
            Map<String, Object> map = new HashMap<>();
            map.put("is_del", 0);
            sysOrganizations = JSON.parseArray(JSON.toJSONString(sysOrganizationService.getListByMap(map).getData()), SysOrganization.class);
            sysOrganizations.forEach(e -> {
                redisUtils.hset(RedisConstant.ORGANIZATION, e.getId().toString(), e);
            });

        } else {
            Set<Object> objects = hmget.keySet();
            Iterator<Object> iterator = objects.iterator();
            while (iterator.hasNext()) {
                sysOrganizations.add((SysOrganization) hmget.get(iterator.next()));
            }
        }
        return sysOrganizations;
    }
}