diff --git a/app/Console/Commands/CostCommand.php b/app/Console/Commands/CostCommand.php
index 9845050..1e05de4 100644
--- a/app/Console/Commands/CostCommand.php
+++ b/app/Console/Commands/CostCommand.php
@@ -4,78 +4,60 @@ namespace App\Console\Commands;
 
 use Throwable;
 use Carbon\Carbon;
+use App\Models\Cost;
 use App\Models\Business;
 use Illuminate\Console\Command;
 use Morilog\Jalali\CalendarUtils;
 use Illuminate\Support\Facades\DB;
 use Illuminate\Support\Facades\Cache;
+use Illuminate\Support\Facades\Storage;
 
 class CostCommand extends Command
 {
-    public const USER_FEE = 400;
-
-    public const FILE_FEE = [
-        200 => 0,
-        400 => 1000,
-        800 => 2000,
-    ];
-
     protected $signature = 'cost:work';
 
     protected $description = 'Run the cost worker';
 
-    public function __construct()
-    {
-        parent::__construct();
-    }
-
     public function handle()
     {
         while (true) {
-            $business = Business::find(221);
-            if ($business === null) {
+            $lock = Cache::get('lock', false);
+            if ($lock) {
+                $this->info('There is no business for auditing.');
                 continue;
             }
 
-            $year = jdate()->getYear();
-            $month = jdate()->getMonth();
-            $day = jdate()->getDay();
-            $hour = jdate()->getHour();
-            $minute = jdate()->getMinute();
-            $second = jdate()->getSecond();
-
-            if (jdate()->getYear() > jdate($business->calculated_at)->getYear()) {
-                $year = jdate()->getYear();
-                $month = 1;
-                $day = 1;
+            $business = Business::orderBy('calculated_at')->first();
+            if ($business === null) {
+                continue;
             }
 
-            if (
-                jdate()->getYear() > jdate($business->calculated_at)->getYear()
-                &&
-                jdate()->getMonth() > jdate($business->calculated_at)->getMonth()
-            ) {
-                $year = jdate()->getYear();
-                $month = jdate()->getMonth();
-                $day = 1;
+            if ($business->calculated_at->isFuture()) {
+                continue;
             }
 
-            $gDate = CalendarUtils::toGregorian($year, $month, $day);
-            $carbon = Carbon::createFromDate($gDate[0], $gDate[1], $gDate[2]);
-            $carbon->setTime($hour, $minute, $second);
+            $next_month = jdate($business->calculated_at)->addMonths();
+            [$year, $month, $day] = CalendarUtils::toGregorian(
+                $next_month->getYear(), $next_month->getMonth(), 1
+            );
+            $now = Carbon::createFromDate($year, $month, $day);
+            $now->setTime(0, 0, 0);
 
-            $now = $carbon;
+            if ($now->isFuture()) {
+                $now = Carbon::now();
+            }
 
             // if calculated_at less than an hour stop
-            if ($now->diffInMinutes($business->calculated_at)) {
+            if ($now->diffInMinutes($business->calculated_at) <= 59) {
                 $this->info('Must be one hour after the last audit.');
+                Cache::put('lock', true, $now->diffInSeconds($business->calculated_at));
                 continue;
             }
 
             try {
                 DB::beginTransaction();
                 // Fixed amounts of expenses
-                $business->load('users', 'cost');
+                $business->load('users', 'files');
 
                 $costs = 0;
                 $costs += $this->calculateCostOfBusinessUsers($business, $now);
@@ -86,11 +68,13 @@ class CostCommand extends Command
                 // make sure save the calculated_at
                 $business->update([
                     'wallet' => $business->wallet - $costs,
-                    'calculated_at' => Carbon::now(),
+                    'calculated_at' => $now,
                 ]);
 
                 DB::commit();
+                $this->info("The business #{$business->id} was audited.");
             } catch (Throwable $throwable) {
+                throw $throwable;
                 DB::rollback();
                 report($throwable);
                 continue;
@@ -98,16 +82,18 @@ class CostCommand extends Command
         }
     }
 
-    public function calculateCostOfBusinessUsers($business, $until_now)
+    public function calculateCostOfBusinessUsers($business, $now)
     {
         $user_fee = enum('business.fee.user');
-        $calculated_at = $business->calculated_at;
         $recorded_month = jdate($business->calculated_at)->format("Y-m-01");
 
+        if ($business->users->isEmpty()) {
+            return 0;
+        }
 
         // get business employee
         $users_cost = $business->cost
-            ->where('type', '=', 'users')
+            ->where('type', '=', Cost::USER_TYPE)
             ->where('fee', '=', $user_fee)
             ->where('month', '=', $recorded_month)
             ->where('amount', '=', $business->users->count())
@@ -115,16 +101,16 @@ class CostCommand extends Command
 
         if ($users_cost === null) {
             $business->cost()->create([
-                'type' => 'users',
+                'type' => Cost::USER_TYPE,
                 'month' => $recorded_month,
                 'amount' => $business->users->count(),
                 'fee' => $user_fee,
-                'duration' => $duration =  $until_now->diffInSeconds($calculated_at), // from the created_at time of the newset fifth user
+                'duration' => $duration = $now->diffInMinutes($business->calculated_at), // from the created_at time of the newset fifth user
                 'additional' => $business->users->pluck('id')->toArray(),
             ]);
         } else {
             $users_cost->update([
-                'duration' => $duration = $until_now->diffInMinutes($calculated_at) + $users_cost->duration, // last calc - (current month - now else last calc - end of the past month),
+                'duration' => $duration = $now->diffInMinutes($business->calculated_at) + $users_cost->duration, // last calc - (current month - now else last calc - end of the past month),
                 'additional' => $business->users->pluck('id')->toArray(),
             ]);
         }
@@ -132,7 +118,7 @@ class CostCommand extends Command
         return $user_fee * $duration;
     }
 
-    public function calculateCostOfBusinessFiles($business, $until_now)
+    public function calculateCostOfBusinessFiles($business, $now)
     {
         $file_fee = enum('business.fee.file');
         $calculated_at = $business->calculated_at;
@@ -140,31 +126,33 @@ class CostCommand extends Command
 
 
         // do the math in php
-        if (intdiv($business->files_volume, 200) === 0) {
-            $pads = 0;
+        $packs = intdiv($business->files_volume, 200);
+        if ($packs === 0) {
+            return 0;
         } else {
-            $pads = intdiv($business->files_volume, 200) - 1;
+            $packs--;
         }
 
-
         $files = $business->cost
-            ->where('type', '=', 'files')
+            ->where('type', '=', Cost::FILE_TYPE)
             ->where('fee', '=', $file_fee)
             ->where('month', '=', $recorded_month)
-            ->where('amount', '=', $business->files_volume)
+            ->where('amount', '=', $packs)
             ->first();
 
         if ($files === null) {
             $business->cost()->create([
-                'type' => 'files',
+                'type' => Cost::FILE_TYPE,
                 'month' => $recorded_month,
-                'amount' => $pads,
+                'amount' => $packs,
                 'fee' => $file_fee,
-                'duration' => $duration = $until_now->diffInMinutes($calculated_at), // how to determine the file?,
+                'duration' => $duration = $now->diffInMinutes($calculated_at), // how to determine the file?,
+                'additional' => ['volume' => $business->files_volume],
             ]);
         } else {
             $files->update([
-                'duration' => $duration = $until_now->diffInMinutes($calculated_at) + $files->duration, // last calc - (current month - now else last calc - end of the past month),,
+                'duration' => $duration = $now->diffInMinutes($calculated_at) + $files->duration, // last calc - (current month - now else last calc - end of the past month),,
+                'additional' => ['volume' => $business->files_volume],
             ]);
         }
 
diff --git a/app/Http/Controllers/FileController.php b/app/Http/Controllers/FileController.php
index a132732..23b30ca 100644
--- a/app/Http/Controllers/FileController.php
+++ b/app/Http/Controllers/FileController.php
@@ -9,8 +9,8 @@ use App\Models\Business;
 use Illuminate\Support\Str;
 use Illuminate\Http\Request;
 use Illuminate\Http\UploadedFile;
+use App\Http\Resources\FileResource;
 use Illuminate\Support\Facades\Auth;
-use App\HiLib\Resources\FileResource;
 use Spatie\QueryBuilder\QueryBuilder;
 use Spatie\QueryBuilder\AllowedFilter;
 use Illuminate\Support\Facades\Storage;
@@ -127,6 +127,10 @@ class FileController extends Controller
             'description' => $request->description
         ]);
 
+        $business->update([
+            'files_volume' => $business->files_volume + $file_record->size
+        ]);
+
         return new FileResource($file_record);
     }
 
diff --git a/app/Http/Resources/FileResource.php b/app/Http/Resources/FileResource.php
index 3b74fb0..bc99db1 100644
--- a/app/Http/Resources/FileResource.php
+++ b/app/Http/Resources/FileResource.php
@@ -1,9 +1,7 @@
 <?php
 
-
 namespace App\Http\Resources;
 
-
 use Illuminate\Http\Resources\Json\JsonResource;
 
 class FileResource extends JsonResource
diff --git a/app/Models/Business.php b/app/Models/Business.php
index eaab90f..dc03aef 100644
--- a/app/Models/Business.php
+++ b/app/Models/Business.php
@@ -42,6 +42,7 @@ class Business extends Model implements HasMedia
 
     protected $casts = [
         'has_avatar' => 'boolean',
+        'calculated_at' => 'datetime',
     ];
 
     public function getValueOf(?string $key)
diff --git a/app/Models/Cost.php b/app/Models/Cost.php
index fa06239..98b2e63 100644
--- a/app/Models/Cost.php
+++ b/app/Models/Cost.php
@@ -6,6 +6,10 @@ use App\Models\Model;
 
 class Cost extends Model
 {
+    public const USER_TYPE = 'users';
+
+    public const FILE_TYPE = 'files';
+
     public $perPage = 12;
 
     protected $fillable = [
diff --git a/app/Providers/AuthServiceProvider.php b/app/Providers/AuthServiceProvider.php
index c02d1b6..69ff803 100644
--- a/app/Providers/AuthServiceProvider.php
+++ b/app/Providers/AuthServiceProvider.php
@@ -40,7 +40,7 @@ class AuthServiceProvider extends ServiceProvider
                 'token' => $request->bearerToken(),
                 'agent' => $request->getAgent(),
                 'os' => $request->getOS(),
-            ])->first();
+            ])->firstOrFail();
 
             return $fingerprint->user->setAttribute('token', $fingerprint->token);
         });
diff --git a/composer.json b/composer.json
index a8d0129..6c87a76 100644
--- a/composer.json
+++ b/composer.json
@@ -20,6 +20,8 @@
         "jenssegers/agent": "^2.6",
         "laravel/socialite": "^5.1",
         "laravel/framework": "^8.12",
+        "laravel/legacy-factories": "^1",
+        "fruitcake/laravel-cors": "^2.0",
         "league/flysystem-aws-s3-v3": "~1.0",
         "spatie/laravel-medialibrary": "^9.0",
         "spatie/laravel-query-builder": "^3.3",