public function postReturn(Request $request, $stopId)
 {
     if (OTPCheck::check(Stop::find($stopId)->code, $request->input('code'))) {
         $rent = $this->user->rent()->lastRent()->first();
         $bike = $rent->bike;
         // 生成密码
         $password = "";
         for ($i = 0; $i < 5; ++$i) {
             $password .= rand(0, 9);
         }
         // 修改车辆状态
         if ($bike->state == 'rented') {
             $bike->state = 'normal';
         }
         $bike->stop_id = $stopId;
         $bike->password = $password;
         $bike->save();
         // 记录Rent(Return)
         $return = new Rent();
         $return->type = 'return';
         $return->user_id = $this->user->id;
         $return->max_time = $rent->max_time;
         $return->bike_id = $bike->id;
         $return->stop_id = $stopId;
         $return->password = $password;
         $return->save();
         // 更新分值
         $score = new Score();
         $score->user_id = $this->user->id;
         // 分值计算
         $scoreDiff = 0;
         $returnTime = $rent->created_at->addHours($rent->max_time);
         if ($returnTime->lt(Carbon::now())) {
             // 超时
             $overHour = $returnTime->diffInHours();
             // 基础扣5分,每2小时多扣1分
             $scoreDiff = -5 - floor($overHour / 2);
             $score->reason = '还车超时' . $overHour . '小时,扣分';
         } else {
             // 成功还车+2分
             $scoreDiff = 2;
             $score->reason = '成功按时还车!加分';
         }
         $score->score = $scoreDiff;
         $score->save();
         // 更新user
         $this->user->state = 'normal';
         $this->user->score = $this->user->score + $scoreDiff;
         $this->user->total += $rent->created_at->diffInSeconds();
         $this->user->save();
         // 成功
         return view('return.success')->withTip($score->reason . $scoreDiff)->withPassword($password);
     } else {
         return view('errors.error')->withTitle('车站码错误')->withError('请输入正确的车站动态码。车站码位于车站站牌证明,轻按按钮即可显示。');
     }
 }
 public function postRent(Request $request, $stopId, $bikeId)
 {
     if (OTPCheck::check(Stop::find($stopId)->code, $request->input('code'))) {
         $bike = Bike::find($bikeId);
         if ($stopId != $bike->stop_id) {
             return view('errors.error')->withTitle('借车失败')->withError('该车不在您选定的车站,请重试!');
         }
         $stop = Stop::find($stopId);
         $rank = Rank::fromScore($this->user->score)->first();
         // 检查车辆状态
         if ($bike->state == 'rented') {
             return view('errors.error')->withTitle('借车失败')->withError('真不巧,这辆车已被其他童鞋抢先借出。');
         } else {
             if ($bike->state != 'normal') {
                 return view('errors.error')->withTitle('借车失败')->withError('对不起,这辆车已经报修,请重新选择车辆。');
             }
         }
         // 本次借车与上次还车时间间隔应当在20分钟以上
         $lastRent = $this->user->rent()->lastReturn()->first();
         if ($lastRent) {
             $diffMinutes = $lastRent->created_at->diffInMinutes(Carbon::now());
             if ($diffMinutes < 20) {
                 return view('errors.error')->withTitle('借车失败')->withError('本次借车与上次还车时间间隔应在20分钟以上(含20分钟),您还需等待 ' . (20 - $diffMinutes) . ' 分钟');
             }
         }
         // 记录Rent
         $rent = new Rent();
         $rent->type = 'rent';
         $rent->user_id = $this->user->id;
         $rent->max_time = Cache::get('special_time', false) ? $rank->max_time_special : $rank->max_time;
         $rent->bike_id = $bikeId;
         $rent->stop_id = $stopId;
         $rent->password = $bike->password;
         $rent->save();
         // 更新user
         $this->user->state = 'rented';
         $this->user->save();
         // 更新bike
         $bike->state = 'rented';
         $bike->stop_id = null;
         $bike->save();
         // 成功
         return view('rent.success')->withPassword($rent->password);
     } else {
         return view('errors.error')->withTitle('车站码错误')->withError('请输入正确的车站动态码。车站码位于车站站牌证明,轻按按钮即可显示。');
     }
 }