package com.uas.demo.service.impl;

import com.uas.demo.dao.ChatInfoDao;
import com.uas.demo.dao.UserDao;
import com.uas.demo.model.ChatInfo;
import com.uas.demo.model.Enterprise;
import com.uas.demo.model.UserInfo;
import com.uas.demo.service.ChatInfoService;
import com.uas.demo.service.EnterpriseService;
import com.uas.demo.service.UserInfoService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.util.StringUtils;

import java.util.Date;

@Service
public class ChatInfoServiceImpl implements ChatInfoService {

	private final UserDao userDao;

	private final UserInfoService userInfoService;

	private final EnterpriseService enterpriseService;

	private final ChatInfoDao chatInfoDao;

	@Autowired
	public ChatInfoServiceImpl(UserDao userDao, UserInfoService userInfoService, EnterpriseService enterpriseService
			, ChatInfoDao chatInfoDao) {
		this.userDao = userDao;
		this.userInfoService = userInfoService;
		this.enterpriseService = enterpriseService;
		this.chatInfoDao = chatInfoDao;
	}

	@Override
	public ChatInfo generateChatInfoWhenUserVisitListOrChat(String userPhone, Enterprise enterprise) {
		// 验证参数信息
		if (StringUtils.isEmpty(userPhone) || enterprise == null || enterprise.getEnUU() == null) {
			return null;
		}

		// 获取用户缓存信息
		UserInfo userInfo = userInfoService.cacheUserInfoWhenUserVisitSystem(userPhone);
		assert userInfo != null;

		ChatInfo chatInfo = chatInfoDao.findByUserIdAndEnUU(userInfo.getUserId(), enterprise.getEnUU());
		if (chatInfo == null) {
			chatInfo = new ChatInfo();
			chatInfo.setUserInfo(userInfo);
			chatInfo.setUserId(userInfo.getUserId());
			chatInfo.setPhone(userInfo.getPhone());

			// 获取用户缓存企业信息
			enterprise = enterpriseService.cacheEnterpriseInfoWhenUserVisitSystem(enterprise);
			assert enterprise != null;
			chatInfo.setEnterprise(enterprise);
			chatInfo.setEnUU(enterprise.getEnUU());
		}

		// 更新聊天信息版本信息，并持久化
		chatInfo.setVersion(new Date().getTime());
		chatInfo = chatInfoDao.save(chatInfo);
		return chatInfo;
	}

	@Override
	public ChatInfo queryChatInfoWhenUserVisitWebSite(String id) {
		if (StringUtils.isEmpty(id)) {
			return null;
		}
		return chatInfoDao.findOne(id);
	}
}