damiao/eladmin-system/src/main/java/me/zhengjie/base/util/ApplicationContextUtil.java

package me.zhengjie.base.util;

import com.alibaba.fastjson.JSON;
import lombok.RequiredArgsConstructor;
import me.zhengjie.application.admin.service.dto.JwtUserDto;
import me.zhengjie.security.service.dto.OnlineUserDto;
import me.zhengjie.utils.RedisUtils;
import me.zhengjie.utils.SecurityUtils;
import me.zhengjie.utils.enums.DataScopeEnum;
import org.springframework.stereotype.Service;

import java.util.List;

@Service
@RequiredArgsConstructor
public class ApplicationContextUtil {
    private final RedisUtils redisUtils;

    /**
     * 获取指定缓存Key的用户信息
     * @param key
     * @return
     */
    public JwtUserDto getUserByKey(String key) {
        return JSON.parseObject((String) redisUtils.get(key), JwtUserDto.class);
    }

    /**
     * 获取当前登录的用户
     * @return UserDetails
     */
    public JwtUserDto getCurrentUser() {
        OnlineUserDto onlineUser = (OnlineUserDto) SecurityUtils.getCurrentUser();
        return JSON.parseObject((String) redisUtils.get(onlineUser.getOnlineToken()), JwtUserDto.class);
    }

    /**
     * 获取系统用户名称
     *
     * @return 系统用户名称
     */
    public String getCurrentUsername() {
        JwtUserDto jwtUserDto = getCurrentUser();
        return jwtUserDto.getUsername();
    }

    /**
     * 获取系统用户ID
     * @return 系统用户ID
     */
    public Long getCurrentUserId() {
        JwtUserDto jwtUserDto = getCurrentUser();
        return jwtUserDto.getUserId();
    }

    /**
     * 获取当前用户的数据权限
     * @return /
     */
    public List<Long> getCurrentUserDataScope(){
        JwtUserDto jwtUserDto = getCurrentUser();
        return jwtUserDto.getDataScopes();
    }

    /**
     * 获取数据权限级别
     * @return 级别
     */
    public String getDataScopeType() {
        List<Long> dataScopes = getCurrentUserDataScope();
        if(dataScopes.size() != 0){
            return "";
        }
        return DataScopeEnum.ALL.getValue();
    }
}