package com.ruoyi.common.utils;

import com.ruoyi.common.core.domain.entity.SysRole;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.context.SecurityContext;
import org.springframework.security.core.context.SecurityContextHolder;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
import com.ruoyi.common.constant.HttpStatus;
import com.ruoyi.common.core.domain.model.LoginUser;
import com.ruoyi.common.exception.ServiceException;

import java.util.List;

/**
 * 安全服务工具类
 * 
 * @author ruoyi
 */
public class SecurityUtils
{
    /**
     * 用户ID
     **/
    public static Long getUserId()
    {
        try
        {
           return  getLoginUser().getUserId();
        }
        catch (Exception e)
        {
            throw new ServiceException("获取用户ID异常", HttpStatus.UNAUTHORIZED);
        }
    }

    public static long getRoleId(){
        try
        {
            List<SysRole> list=  getLoginUser().getUser().getRoles();
            long roleId= list.get(0).getRoleId();
            for(SysRole role :list){
                if(role.getRoleId()<roleId){
                    roleId=role.getRoleId();
                }
            }
            return roleId;
        }
        catch (Exception e)
        {
            return 0;
        }
    }

    /**
     * 获取部门ID
     **/
    public static Long getDeptId()
    {
        try
        {
            return getLoginUser().getDeptId();
        }
        catch (Exception e)
        {
            throw new ServiceException("获取部门ID异常", HttpStatus.UNAUTHORIZED);
        }
    }
    
    /**
     * 获取用户账户
     **/
    public static String getUsername()
    {
        try
        {
            LoginUser loginUser=getLoginUser();
            return loginUser!=null?loginUser.getUsername():null;
        }
        catch (Exception e)
        {
            throw new ServiceException("获取用户账户异常", HttpStatus.UNAUTHORIZED);
        }
    }

    /**
     * 获取用户
     **/
    public static LoginUser getLoginUser()
    {
        try
        {
            Authentication auth=getAuthentication();
            if(auth!=null) {
                return (LoginUser) auth.getPrincipal();
            }
            return  null;
        }
        catch (Exception e)
        {
            throw new ServiceException("获取用户信息异常", HttpStatus.UNAUTHORIZED);
        }
    }

    /**
     * 获取Authentication
     */
    public static Authentication getAuthentication()
    {
        SecurityContext ctx=SecurityContextHolder.getContext();
        return ctx!=null? SecurityContextHolder.getContext().getAuthentication():null;
    }

    /**
     * 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();
        return passwordEncoder.matches(rawPassword, encodedPassword);
    }

    /**
     * 是否为管理员
     * 
     * @param userId 用户ID
     * @return 结果
     */
    public static boolean isAdmin(Long userId)
    {
        return userId != null && 1L == userId;
    }

    /**
     * 获取当前用户权限最大的角色
     * @return role
     */
    public Long getUserFirstRole(){
        return getLoginUser().getUser().getRoles().stream().mapToLong(r->r.getRoleId()).min().getAsLong();
    }

    public static boolean isUserB() {
        long roleId=getRoleId();
        return 5==roleId || 6==roleId || 7==roleId || 99==roleId || 15==roleId || 16==roleId || 17==roleId;
    }
}