package com.yunfeiyun.agmp.common.utils;

import com.yunfeiyun.agmp.common.constant.Constants;
import com.yunfeiyun.agmp.common.constant.ErrorCode;
import com.yunfeiyun.agmp.common.core.domain.model.LoginUser;
import com.yunfeiyun.agmp.common.exception.BizException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.context.SecurityContextHolder;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;

/**
 * 安全服务工具类
 * 
 * @author 杨晓辉
 */
public class SecurityUtils
{
    private static final Logger log = LoggerFactory.getLogger(SecurityUtils.class);
    /**
     * 用户ID
     **/
    public static String getUserId()
    {
        try
        {
            return getLoginUser().getUserId();
        }
        catch (Exception e)
        {
            throw new BizException(ErrorCode.UNAUTHORIZED_ERROR.getMessage(), ErrorCode.UNAUTHORIZED_ERROR.getCode());
        }
    }

    /**
     * 获取部门ID
     **/
    public static String getDeptId()
    {
        try
        {
            return getLoginUser().getDeptId();
        }
        catch (Exception e)
        {
           throw new BizException(ErrorCode.UNAUTHORIZED_ERROR.getMessage(), ErrorCode.UNAUTHORIZED_ERROR.getCode());
        }
    }
    
    /**
     * 获取用户账户
     **/
    public static String getUsername()
    {
        try
        {
            return getLoginUser().getUsername();
        }
        catch (Exception e)
        {
            throw new BizException(ErrorCode.UNAUTHORIZED_ERROR.getMessage(), ErrorCode.UNAUTHORIZED_ERROR.getCode());
        }
    }

    /**
     * 获取用户
     **/
    public static LoginUser getLoginUser()
    {
        try
        {
            return (LoginUser) getAuthentication().getPrincipal();
        }
        catch (Exception e)
        {
            throw new BizException(ErrorCode.UNAUTHORIZED_ERROR.getMessage(), ErrorCode.UNAUTHORIZED_ERROR.getCode());
        }
    }

    /**
     * 获取Authentication
     */
    public static Authentication getAuthentication()
    {
        return SecurityContextHolder.getContext().getAuthentication();
    }

    /**
     * 生成BCryptPasswordEncoder密码
     *
     * @param password 密码
     * @return 加密字符串
     */
    public static String encryptPassword(String password)
    {
        BCryptPasswordEncoder passwordEncoder = new BCryptPasswordEncoder();
        return passwordEncoder.encode(password);
    }

    /**
     * 判断密码是否相同
     *
     * @param rawPassword 真实密码
     * @param encodedPassword 加密后字符
     * @return 结果
     */
    public static boolean matchesPassword(String rawPassword, String encodedPassword)
    {
        BCryptPasswordEncoder passwordEncoder = new BCryptPasswordEncoder();
        log.warn("rawPassword={}  encodedPassword登录密码={}  验证结果={}" , rawPassword , encodedPassword , passwordEncoder.matches(rawPassword, encodedPassword));
        return passwordEncoder.matches(rawPassword, encodedPassword);
    }

    /**
     * 是否为管理员
     * 
     * @param userId 用户ID
     * @return 结果
     */
    public static boolean isAdmin(String userId)
    {
        return userId != null && Constants.ADMIN_KEY.equals(userId);
    }
}
