bitmap签到

/**
     * 用户签到接口
     * @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参数错误','']);
        }
        //获取当前时间
        $now = date('Ym');
        $day = date('d'); //04
        //拼接bitmap的key
        $key = $uid.':'.$now;  //"1:202207"
        //查看是否签到过
        $date = Redis::getbit($key,$day);
        if($date){
            return json_encode(['code' => 200,'msg' =>'今天签到过了','data' => '']);
        }
        //获取昨天时间
        $lastDay = date("d", strtotime("-1 day"));  //"02"
        //查看昨天是否签到
        $lastDate = Redis::getbit($key,$lastDay);
        $user = Users::where('uid',$uid)->first()->toarray();
//        Redis::setbit($key,0,1);
        //昨天签到(连签)
        if($lastDate){
            //积分叠加   bitmap存已签到
            $integral = $user['integral'] + 10 + ($user['sign_num']*5);
            //签到次数
            $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' =>'签到失败','data' => '']);
            }
            Redis::setbit($key,$day,1);
            //签到记录
            $sign = \App\Models\SignIn::where('uid',$uid)->orderby('balance','desc')->first();
            //累计所得积分
            $integralFen = $sign['balance'] + 10 + ($user['sign_num']*5);
            $signData['uid'] = $uid;
            $signData['title'] = "用户第$num 次签到";
            $signData['number'] = 10 + ($user['sign_num']*5);
            $signData['balance'] = $integralFen;
            $signData['add_time'] = time();
            $signRes = \App\Models\SignIn::insert($signData);
            if (!$signRes){
                return json_encode(['code' => 500,'msg' =>'签到失败','data' => '']);
            }
            return json_encode(['code' => 200,'msg' => "您已连续签到$num 天，已得积分$integral 分",'data' => '']);
        }
        //昨天未签到(断签)
        $data['sign_num'] = 1;
        $data['integral'] = $user['integral'] + 10;
        $result = Users::where('uid',$uid)->update($data);
        if (!$result){
            return json_encode(['code' => 500,'msg' =>'签到失败','data' => '']);
        }
        Redis::setbit($key,$day,1);
        $signData['uid'] = $uid;
        $signData['title'] = '用户第一次签到';
        $signData['number'] = 10;
        $signData['balance'] = 10;
        $signData['add_time'] = time();
        $signRes = \App\Models\SignIn::insert($signData);
        if (!$signRes){
            return json_encode(['code' => 500,'msg' =>'签到失败','data' => '']);
        }
        return json_encode(['code' => 200,'msg' =>'签到成功','data' => '']);

    }


    /**
     * 补签并重新计算连续签到
     * @return false|string
     *
     */
    public static function retroactive()
    {
        $uid = \request()->get('uid');
        $date = \request()->get('date');
        //获取现在的时间
        $now = date('Ymd');
        if ($date >= $now) {
            return json_encode(['code' => 500,'msg' =>'补签的日期不能大于等于今天','data' => '']);
        }
        //获取要补签的时间
        $day = substr($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' =>'你已经签到过了不需要补签','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]);
       }
        //查询用户签到信息
       $user = Users::where('uid',$uid)->first()->toarray();
       $integral = $user['integral'];
       $signData['uid'] = $uid;
       $signData['title'] = '用户补签';
       $signData['number'] = 10;
       $signData['balance'] = $integral;
       $signData['add_time'] = time();
       $signRes = \App\Models\SignIn::insert($signData);
       if (!$signRes){
           return json_encode(['code' => 500,'msg' =>'签到失败','data' => '']);
       }
       return json_encode(['code' => 200,'msg' => "您已补签成功，获得积分$integral 分，",'data' => '']);
    }


/**
     * 获取用户连续签到天数
     * @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());
        }
    }