package com.sandu.ximon.admin.security;

import com.sandu.common.enums.ResponseStatusEnums;
import com.sandu.common.execption.BusinessException;
import com.sandu.common.security.LoginUserInfo;
import com.sandu.ximon.dao.enums.AdministratorEnums;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.context.SecurityContextHolder;

/**
 * 获取当前登录的用户
 *
 * @author Zheng Jie
 * @date 2019-01-17
 */
public class SecurityUtils {

    /**
     * 获取当前登录用户信息
     */
    public static LoginUserInfo getUserDetails() {
        final Authentication authentication = SecurityContextHolder.getContext().getAuthentication();
        if (authentication == null) {
            throw new BusinessException(ResponseStatusEnums.TOKEN_INVALID.getCode(), ResponseStatusEnums.TOKEN_INVALID.getMessage());
        }
        if (authentication.getPrincipal() instanceof LoginUserInfo) {
            LoginUserInfo loginUserInfo = (LoginUserInfo) authentication.getPrincipal();
            if (!loginUserInfo.isEnabled()) {
                throw new BusinessException(ResponseStatusEnums.DISABLE_ACCOUNT.getCode(), ResponseStatusEnums.DISABLE_ACCOUNT.getMessage());
            }
            return loginUserInfo;
        }
        return null;
    }

    /**
     * 获取当前登录用户登录名
     *
     * @return 当前登录用户登录名
     */
    public static String getUsername() {
        LoginUserInfo loginUserInfo = getUserDetails();
        if (loginUserInfo != null) {
            return loginUserInfo.getUsername();
        }
        return null;
    }

    /**
     * 获取管理员身份， 类型可见 {{@link AdministratorEnums}}
     *
     * @return
     */
    public static Integer getAdministratorIdentity() {
        LoginUserInfo loginUserInfo = getUserDetails();
        if (loginUserInfo == null) {
            throw new BusinessException(ResponseStatusEnums.TOKEN_INVALID.getCode(), ResponseStatusEnums.TOKEN_INVALID.getMessage());
        }
        return loginUserInfo.getAdministratorType();
    }

    /**
     * 获取当前登录账号的id
     *
     * @return 当前登录账号的id
     */
    public static Long getUserId() {
        LoginUserInfo loginUserInfo = getUserDetails();
        if (loginUserInfo != null) {
            return loginUserInfo.getUserId();
        }
        return null;
    }

    /**
     * 获取客户账号的id 如果当前身份是运营人员，返回null
     *
     * @return
     */
    public static Long getClientId() {
        LoginUserInfo loginUserInfo = getUserDetails();
        if (loginUserInfo == null) {
            return null;
        }
        if (!AdministratorEnums.ADMIN.getCode().equals(loginUserInfo.getAdministratorType())) {
            return loginUserInfo.getUserId();
        }
        return null;
    }
}