package cc.mrbird.febs.common.interceptor;


import cc.mrbird.febs.common.utils.AppContants;
import cc.mrbird.febs.common.utils.RedisUtils;
import cc.mrbird.febs.common.utils.SpringContextUtil;
import cc.mrbird.febs.video.entity.VideoMemberEntity;
import cn.hutool.core.util.StrUtil;
import cn.hutool.crypto.asymmetric.KeyType;
import cn.hutool.crypto.asymmetric.RSA;
import com.alibaba.fastjson.JSON;
import lombok.extern.slf4j.Slf4j;
import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

@Slf4j
public class VideoInterceptor implements HandlerInterceptor {

    private final RedisUtils redisUtils = SpringContextUtil.getBean(RedisUtils.class);
    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        String headerToken = request.getHeader("token");
        if (StrUtil.isNotBlank(headerToken)) {
            RSA rsa = new RSA(AppContants.PRIVATE_KEY, null);
            String[] tokens = StrUtil.split(rsa.decryptStr(headerToken, KeyType.PrivateKey), "_");

            String token = tokens[0];
            String userJsonStr = redisUtils.getString(token);

            if (StrUtil.isNotBlank(userJsonStr)) {
                VideoMemberEntity member = JSON.parseObject(userJsonStr, VideoMemberEntity.class);
                request.getSession().setAttribute("member", member);
            }
        }

        return true;
    }

    @Override
    public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception {
        HandlerInterceptor.super.postHandle(request, response, handler, modelAndView);
    }

    @Override
    public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {
        HandlerInterceptor.super.afterCompletion(request, response, handler, ex);
    }
}