<?php
declare(strict_types=1);
namespace app\api\service\auth;

use think\facade\Cache;
use app\common\model\UserToken;
use app\common\model\User;
use think\facade\Config;

class MysqlAdapter
{
    private UserToken $usertoken;

  

    public  static function userinfo(string $token):int
    {
        return UserToken::where('token',$token)->where('expire','>', time())->value('user_id');
    }

    public static function getUserToken($token):bool
    {
        return boolval(UserToken::where('token',$token)->where('expire','>', time())->order('id','asc')->count());
    }

    public static function login(string $token,User $user)
    {
        $keepalive_time=Config::get('app.user_login.keepalive_time');
        $token = md5($token);
        UserToken::create([
            'token'=> $token ,
            'user_id'=>$user->id,
            'expire'=>time()+$keepalive_time
        ]);
      
        $allow_device_num=Config::get('app.user_login.allow_device_num');
        //如果数据库中保存的设备数大于允许的设备数，如果超出则挤出去最早登陆的设备
        $time=time();
        $count=UserToken::where('user_id',$user->id)->where('expire','>',$time)->count();
        if($count>$allow_device_num){
            $usertoken=UserToken::where('user_id',$user->id)->where('expire','>',$time)->order('id','asc')->find();
            $usertoken->delete();
        }

        return $token ;
    }

    public function logout()
    {
        UserToken::where('token',$this->usertoken->token)->delete();
    }
}