package com.xcong.excoin.netty.logic;

import cn.hutool.core.util.StrUtil;
import cn.hutool.crypto.asymmetric.KeyType;
import cn.hutool.crypto.asymmetric.RSA;
import com.alibaba.fastjson.JSONObject;
import com.xcong.excoin.common.contants.AppContants;
import com.xcong.excoin.configurations.properties.SecurityProperties;
import com.xcong.excoin.modules.member.entity.MemberEntity;
import com.xcong.excoin.netty.bean.ChatRequest;
import com.xcong.excoin.netty.bean.RequestBean;
import com.xcong.excoin.netty.bean.ResponseBean;
import com.xcong.excoin.netty.common.ChannelManager;
import com.xcong.excoin.netty.common.NettyTools;
import com.xcong.excoin.rabbit.producer.ChatProducer;
import com.xcong.excoin.utils.RedisUtils;
import io.netty.channel.Channel;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;


/**
 * @author wzy
 * @email wangdoubleone@gmail.com
 * @date 2019-05-09
 */
@Slf4j
@Component
public class WebSocketLogic {

    @Autowired
    private RedisUtils redisUtils;
    @Autowired
    private ChatProducer chatProducer;
    @Autowired
    private SecurityProperties securityProperties;

    public void authCheck(RequestBean requestBean) {
        Channel channel = ChannelManager.findWebSocketChannel(requestBean.getChannelId());
        ResponseBean responseBean = new ResponseBean();
        responseBean.setType(requestBean.getType());
        responseBean.setStatus(1);

//        String bearerToken = requestBean.getData().toString();
//        String rsaToken = bearerToken.replace(AppContants.TOKEN_START_WITH, "");
//        RSA rsa = new RSA(securityProperties.getPrivateKey(), null);
//        String[] tokens = StrUtil.split(rsa.decryptStr(rsaToken, KeyType.PrivateKey), "_");
//
//        Long memberId = Long.parseLong(tokens[0]);

        String token = requestBean.getData().toString();
        String redisKey = AppContants.APP_LOGIN_PREFIX + token;
        String loginStr = redisUtils.getString(redisKey);
        if (StrUtil.isBlank(loginStr)) {
            ResponseBean res = ResponseBean.fail();
            res.setType(requestBean.getType());
            channel.writeAndFlush(NettyTools.webSocketBytes(JSONObject.toJSONString(res)));
            return;
        }

        MemberEntity loginUser = JSONObject.parseObject(loginStr, MemberEntity.class);
        Long memberId = loginUser.getId();

        channel.writeAndFlush(NettyTools.webSocketBytes(JSONObject.toJSONString(responseBean)));
        ChannelManager.addWsChannel(channel, memberId);
        String value = redisUtils.getString(AppContants.MSG_NOTICE + memberId);
        if (StrUtil.isNotBlank(value)) {
            responseBean.setType(3);
            responseBean.setData(Integer.parseInt(value));
            channel.writeAndFlush(NettyTools.webSocketBytes(JSONObject.toJSONString(responseBean)));

            redisUtils.del(AppContants.MSG_NOTICE + memberId);
        }
    }

    public void sendMsg(RequestBean requestBean) {
        String chatStr = requestBean.getData().toString();
        ChatRequest chat = JSONObject.parseObject(chatStr, ChatRequest.class);

        // 判断是否在线
        Channel targetChannel = ChannelManager.findWsChannel(Long.parseLong(chat.getTo()));
        if (targetChannel != null) {
            targetChannel.writeAndFlush(NettyTools.webSocketBytes(JSONObject.toJSONString(ResponseBean.ok(chat))));

            chatProducer.sendMsgHistory(chat);
        } else {
            // 在redis中保存用户未在线时，给该用户发送的消息条数
            String key = AppContants.MSG_NOTICE + chat.getTo();
            String value = redisUtils.getString(key);
            if (StrUtil.isEmpty(value)) {
                redisUtils.set(key , 1);
            } else {
                redisUtils.set(key, Integer.parseInt(value) + 1);
            }
        }
    }
}