package com.doumee.config.jwt;

import com.alibaba.fastjson.JSONObject;
import com.baomidou.mybatisplus.core.conditions.update.UpdateWrapper;
import com.doumee.biz.system.SystemDictDataBiz;
import com.doumee.core.model.LoginUserInfo;
import com.doumee.core.utils.Constants;
import com.doumee.core.utils.HttpsUtil;
import com.doumee.dao.system.SystemUserMapper;
import com.doumee.dao.system.model.SystemUser;
import io.jsonwebtoken.Jwts;
import io.jsonwebtoken.SignatureAlgorithm;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang3.StringUtils;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.HttpClientBuilder;
import org.apache.http.util.EntityUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.stereotype.Component;

import javax.annotation.Resource;
import java.io.IOException;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;
import java.util.concurrent.TimeUnit;

@Component
@Slf4j
public class JwtTokenUtil {

    @Autowired
    private RedisTemplate<String,Object> redisTemplate;
    @Resource
    private JwtProperties jwtProperties;
    @Autowired
    private SystemDictDataBiz systemDictDataBiz ;
    @Autowired
    private SystemUserMapper systemUserMapper;
    /**
     * 生成token令牌
     *
     * @param payloads 令牌中携带的附加信息
     * @return 令token牌
     */
    public String generateToken( LoginUserInfo payloads) {
        if(payloads == null){
            return  null;
        }
        payloads.setLoginDate(new Date());
        Map<String,Object> map = new HashMap<>();
        map.put("id",payloads.getId());
//        Map<String,Object> map =   BeanUtil.beanToMap(payloads);
        return generateTokenDo(payloads);
    }

    /**
     * 从令牌中获取用户名
     *
     * @param token 令牌
     * @return 用户名
     */
    public String getUsernameFromToken(String token) {
        String username;
        try {
            LoginUserInfo claims = getClaimsFromToken(token);
            username = claims.getUsername();
        } catch (Exception e) {
            username = null;
        }
        return username;
    }
    public LoginUserInfo getUserInfoByToken(String token) {
        try {
            LoginUserInfo claims = getClaimsFromToken(token);
            return claims;
        } catch (Exception e) {
           e.printStackTrace();
        }
        return null;
    }

    /**
     * 判断令牌是否过期
     *
     * @param token 令牌
     * @return 是否过期
     */
    public Boolean isTokenExpired(String token) {
        try {
            LoginUserInfo claims = getClaimsFromToken(token);
            Date expiration = //claims.getLoginDate();
            new Date(claims.getLoginDate().getTime() + jwtProperties.getExpiration());
            return expiration.before(new Date());
        } catch (Exception e) {
            //验证JWT签名失败等同于令牌过期
            return true;
        }
    }

    /**
     * 刷新令牌
     *
     * @param token 原令牌
     * @return 新令牌
     */
    public String refreshToken(String token) {
        String refreshedToken;
        try {
            LoginUserInfo claims = getClaimsFromToken(token);
            claims.setLoginDate(new Date());
            refreshedToken = generateTokenDo(claims);
            if(refreshedToken!=null){
                redisTemplate.delete(Constants.REDIS_TOKEN_KEY+token);//删除老的token
            }
        } catch (Exception e) {
            refreshedToken = null;
        }
        return refreshedToken;
    }
    /**
     * 退出登陆
     *
     * @param token 原令牌
     * @return 新令牌
     */
    public void logout(String token) {
        try {
            //登出海康系统数据
            LoginUserInfo loginUserInfo = this.getUserInfoByToken(token);
            String url = systemDictDataBiz.queryByCode(Constants.HK_PARAM,Constants.HK_HTTPS).getCode() +
                    systemDictDataBiz.queryByCode(Constants.HK_PARAM,Constants.HK_HOST).getCode() +
                    systemDictDataBiz.queryByCode(Constants.HK_PARAM,Constants.LOGIN_OUT_URL).getCode();
            if(StringUtils.isNotBlank(loginUserInfo.getHkMenuToken())){
                log.info("调起海康退出登录=======================>"+url+"?token="+loginUserInfo.getHkMenuToken());
//                this.hkLoginOut(url+"?token="+loginUserInfo.getHkMenuToken());
                HttpsUtil.get(url+"?token="+loginUserInfo.getHkMenuToken(),true);
            }
            //删除老的token
            redisTemplate.delete(Constants.REDIS_TOKEN_KEY+token);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    public void logoutForH5(String token) {
        try {
            //登出海康系统数据
            LoginUserInfo loginUserInfo = this.getUserInfoByToken(token);
            //删除老的token
            redisTemplate.delete(Constants.REDIS_TOKEN_KEY+token);
            systemUserMapper.update(null,new UpdateWrapper<SystemUser>().lambda().set(SystemUser::getOpenid,null).eq(SystemUser::getId,loginUserInfo.getId()));

        } catch (Exception e) {
            e.printStackTrace();
        }
    }
    public void hkLoginOut(String url){
        try {
            // 创建HttpClient对象
            HttpClient httpClient = HttpClientBuilder.create().build();
            // 创建HttpGet对象，指定要访问的URL地址
            HttpGet httpGet = new HttpGet(url);
            // 发送GET请求，获取响应
            HttpResponse response = httpClient.execute(httpGet);
            // 获取响应状态码
            int statusCode = response.getStatusLine().getStatusCode();
            // 判断请求是否成功
            if (statusCode == 200) {
                // 获取响应内容
                HttpEntity entity = response.getEntity();
                String responseContent = EntityUtils.toString(entity, "UTF-8");
                System.out.println(responseContent);
                log.info("调起海康退出登录返回信息=======================>"+responseContent);
            } else {
                System.out.println("请求失败，响应码：" + statusCode);
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
    }


    /**
     * 验证令牌
     *
     * @param token       令牌
     * @param userId  用户Id用户名
     * @return 是否有效
     */
    public Boolean validateToken(String token, String userId) {

        String username = getUsernameFromToken(token);
        return (username.equals(userId) && !isTokenExpired(token));
    }


    /**
     * 从claims生成令牌,如果看不懂就看谁调用它
     *
     * @return 令牌
     */
    private String generateTokenDo(LoginUserInfo userInfo) {
        Map<String, Object> claims = new HashMap<>();
        claims.put("id",userInfo.getId());
        Date expirationDate = new Date(System.currentTimeMillis() + jwtProperties.getExpiration());
        String token = Jwts.builder().setClaims(claims)
                .setExpiration(expirationDate)
                .signWith(SignatureAlgorithm.HS512, jwtProperties.getSecret())
                .compact();
        redisTemplate.opsForValue().set(Constants.REDIS_TOKEN_KEY+token,JSONObject.toJSONString(userInfo),jwtProperties.getExpiration(), TimeUnit.MILLISECONDS);
        return token;
    }


    /**
     * 从令牌中获取数据声明,验证JWT签名
     *
     * @param token 令牌
     * @return 数据声明
     */
    private LoginUserInfo getClaimsFromToken(String token) {
        LoginUserInfo claims;
        try {
            String userInfo = (String) redisTemplate.opsForValue().get(Constants.REDIS_TOKEN_KEY+token);
            claims = JSONObject.toJavaObject(JSONObject.parseObject(userInfo),LoginUserInfo.class);
        } catch (Exception e) {
            claims = null;
        }
        return claims;
    }
}