Bitmap sign in

/**
     *  User sign in interface 
     * @return false|string
     */
    public function sign()
    {
        $uid = \request()->get('uid');
        if (!is_numeric($uid) || $uid !=(int)$uid || $uid <= 0){
            return json_encode(['code' => 500,'msg' => 'uid Parameter error ','']);
        }
        // Get the current time 
        $now = date('Ym');
        $day = date('d'); //04
        // Splicing bitmap Of key
        $key = $uid.':'.$now;  //"1:202207"
        // Check whether you have checked in 
        $date = Redis::getbit($key,$day);
        if($date){
            return json_encode(['code' => 200,'msg' =>' I signed in today ','data' => '']);
        }
        // Get yesterday's time 
        $lastDay = date("d", strtotime("-1 day"));  //"02"
        // Check whether you checked in yesterday 
        $lastDate = Redis::getbit($key,$lastDay);
        $user = Users::where('uid',$uid)->first()->toarray();
//        Redis::setbit($key,0,1);
        // Sign in yesterday ( Countersignature )
        if($lastDate){
            // Integral superposition    bitmap Deposit has been signed in 
            $integral = $user['integral'] + 10 + ($user['sign_num']*5);
            // Check in times 
            $num = $user['sign_num'] + 1;
            $data['integral'] = $integral;
            $data['sign_num'] = $num;
            $result = Users::where('uid',$uid)->update($data);
            if (!$result){
                return json_encode(['code' => 500,'msg' =>' Check in failed ','data' => '']);
            }
            Redis::setbit($key,$day,1);
            // Sign in record 
            $sign = \App\Models\SignIn::where('uid',$uid)->orderby('balance','desc')->first();
            // Accumulated points 
            $integralFen = $sign['balance'] + 10 + ($user['sign_num']*5);
            $signData['uid'] = $uid;
            $signData['title'] = " User No $num  Check in times ";
            $signData['number'] = 10 + ($user['sign_num']*5);
            $signData['balance'] = $integralFen;
            $signData['add_time'] = time();
            $signRes = \App\Models\SignIn::insert($signData);
            if (!$signRes){
                return json_encode(['code' => 500,'msg' =>' Check in failed ','data' => '']);
            }
            return json_encode(['code' => 200,'msg' => " You have checked in continuously $num  God , Earned points $integral  branch ",'data' => '']);
        }
        // I didn't sign in yesterday ( Severance )
        $data['sign_num'] = 1;
        $data['integral'] = $user['integral'] + 10;
        $result = Users::where('uid',$uid)->update($data);
        if (!$result){
            return json_encode(['code' => 500,'msg' =>' Check in failed ','data' => '']);
        }
        Redis::setbit($key,$day,1);
        $signData['uid'] = $uid;
        $signData['title'] = ' The first time the user checks in ';
        $signData['number'] = 10;
        $signData['balance'] = 10;
        $signData['add_time'] = time();
        $signRes = \App\Models\SignIn::insert($signData);
        if (!$signRes){
            return json_encode(['code' => 500,'msg' =>' Check in failed ','data' => '']);
        }
        return json_encode(['code' => 200,'msg' =>' Sign in successfully ','data' => '']);

    }


    /**
     *  Make up and recalculate the continuous check-in 
     * @return false|string
     *
     */
    public static function retroactive()
    {
        $uid = \request()->get('uid');
        $date = \request()->get('date');
        // Get the present time 
        $now = date('Ymd');
        if ($date >= $now) {
            return json_encode(['code' => 500,'msg' =>' The date of re signing cannot be later than or equal to today ','data' => '']);
        }
        // Get the time to re sign 
        $day = substr($date, 6, 2);
        $month = substr($date, 0, 6);
        $key = $uid . ':' . $month;
        $sign = Redis::getbit($key, $day); //0
        if ($sign == 1) {
            return json_encode(['code' => 200,'msg' =>' You've already signed in. You don't need to sign in ','data' => '']);
        }
        Redis::setbit($key, $day, 1);

       $month = date('Ym');
       $day = date('d') - 1;
       $signKey = $uid . ':' . $month;
       $sign = Redis::getbit($signKey, $day); //   
       $i = 1;
       if ($sign == 1) {

        dd(1123);
           $min = self::getNum($uid, $month, $day,$i);
           Users::where('uid',$uid)->update(['sign_num' => $min]);
       }
        // Query user sign in information 
       $user = Users::where('uid',$uid)->first()->toarray();
       $integral = $user['integral'];
       $signData['uid'] = $uid;
       $signData['title'] = ' User's supplementary signature ';
       $signData['number'] = 10;
       $signData['balance'] = $integral;
       $signData['add_time'] = time();
       $signRes = \App\Models\SignIn::insert($signData);
       if (!$signRes){
           return json_encode(['code' => 500,'msg' =>' Check in failed ','data' => '']);
       }
       return json_encode(['code' => 200,'msg' => " You have successfully re signed , Get integral $integral  branch ,",'data' => '']);
    }


/**
     *  Get the number of consecutive check-in days of users 
     * @param $uid
     * @param $date
     * @param $day
     * @param $i
     */
    public static function getNum($uid, $date, $day,&$i)
    {
        try {
            $key = $uid . ':' . $date;
            $sign = Redis::getbit($key, $day);
            if ($sign == 1) {
                $i ++;
                if ($day - 1 > 0) {
                    self::getNum($uid, $date, $day - 1,$i);
                }else{
                    $time = strtotime($date . '0' . $day) - 86400;
                    $mytime = date('Ymd', $time);
                    $day = substr($mytime, 6, 2);
                    $month = substr($mytime, 0, 6);
                    self::getNum($uid, $month, $day,$i);
                }
            }
           return $i;
        }catch (\Exception $e){
            return json_encode(500,$e->getMessage());
        }
    }