package com.fdkankan.tk.service.impl;

import com.alibaba.fastjson.JSONObject;
import com.fdkankan.redis.util.RedisUtil;
import com.fdkankan.tk.common.ResultCode;
import com.fdkankan.tk.common.util.RedisKeyUtil;
import com.fdkankan.tk.entity.TencentYun;
import com.fdkankan.tk.exception.BusinessException;
import com.fdkankan.tk.mapper.ITencentYunMapper;
import com.fdkankan.tk.service.ITencentYunService;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.tencentyun.TLSSigAPIv2;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.List;

/**
 * <p>
 *  服务实现类
 * </p>
 *
 * @author 
 * @since 2022-09-27
 */
@Service
public class TencentYunServiceImpl extends ServiceImpl<ITencentYunMapper, TencentYun> implements ITencentYunService {

    @Autowired
    RedisUtil redisUtil;

    @Override
    public JSONObject getSign(String userId) {
        String redisKey = RedisKeyUtil.TENCENT_YUN_KEY + userId;
        if (!redisUtil.hasKey(redisKey)) {
            List<TencentYun> list = this.list();
            if(list == null || list.size() <=0){
                throw new BusinessException(ResultCode.TENCENT_YUN_EMPTY);
            }
            if(list.size() >1){
                throw new BusinessException(ResultCode.TENCENT_YUN_ERROR);
            }
            TencentYun tencentYun = list.get(0);

            TLSSigAPIv2 api = new TLSSigAPIv2(tencentYun.getSdkAppid(), tencentYun.getSecretkey());
            String sign = api.genUserSig(userId, tencentYun.getExTime() );

            JSONObject jsonObject = new JSONObject();
            jsonObject.put("sdkAppId",tencentYun.getSdkAppid());
            jsonObject.put("expire",tencentYun.getExTime());
            jsonObject.put("sign",sign);
            redisUtil.set(redisKey ,jsonObject.toJSONString(),tencentYun.getExTime() - 60);
            return jsonObject;
        }
        JSONObject jsonObject = JSONObject.parseObject(redisUtil.get(redisKey));
        jsonObject.put("expire",redisUtil.getExpire(redisKey));
        return jsonObject;
    }
}