Add GoogleDriveQuota helper for retrieving Google Drive storage usage

Author: laravelwebdev

.env.example

@@ -95,7 +95,6 @@ COMPOSER_HOME = "../../.cache/composer"
 ## SERVER RESOURCE LIMITATION
 DISK_SPACE_LIMIT=107374182400
 DISK_INODE_LIMIT=400000
-DISK_BACKUP_LIMIT=15728640
 
 ## APPLICATION UPDATE
 AUTO_UPDATE=true

app/Helpers/GoogleDriveQuota.php

@@ -0,0 +1,40 @@
+<?php
+
+namespace App\Helpers;
+
+use Google\Client;
+use Google\Service\Drive;
+
+class GoogleDriveQuota
+{
+    public static function getQuota(): array
+    {
+        $client = new Client();
+        $client->setClientId(env('GOOGLE_DRIVE_CLIENT_ID'));
+        $client->setClientSecret(env('GOOGLE_DRIVE_CLIENT_SECRET'));
+        $client->setRedirectUri(env('APP_URL') . '/google/oauth/callback');
+        $client->setAccessType('offline');
+        $client->setScopes(['https://www.googleapis.com/auth/drive.metadata.readonly']);
+
+        // refresh token -> access token
+        $client->fetchAccessTokenWithRefreshToken(env('GOOGLE_DRIVE_REFRESH_TOKEN'));
+
+        $service = new Drive($client);
+        $about = $service->about->get(['fields' => 'storageQuota']);
+        $q = $about->getStorageQuota();
+
+        $limit = $q->getLimit();   // total bytes
+        $usage = $q->getUsage();   // used bytes
+
+        return [
+            'used'  => self::toGB($usage),
+            'total' => self::toGB($limit),
+        ];
+    }
+
+    private static function toGB($bytes): ?float
+    {
+        if ($bytes === null) return null;
+        return round($bytes / (1024 ** 3), 2); // convert to GB (2 decimal)
+    }
+}

app/Nova/Metrics/ServerResource.php

@@ -3,14 +3,15 @@
 namespace App\Nova\Metrics;
 
 use DateTimeInterface;
-use Fidum\LaravelNovaMetricsPolling\Concerns\SupportsPolling;
-use Illuminate\Support\Facades\Cache;
-use Laravel\Nova\Http\Requests\NovaRequest;
+use App\Helpers\GoogleDriveQuota;
 use Laravel\Nova\Metrics\Partition;
+use Illuminate\Support\Facades\Cache;
+use Symfony\Component\Process\Process;
 use Laravel\Nova\Metrics\PartitionResult;
+use Laravel\Nova\Http\Requests\NovaRequest;
 use Spatie\Backup\Tasks\Monitor\BackupDestinationStatus;
+use Fidum\LaravelNovaMetricsPolling\Concerns\SupportsPolling;
 use Spatie\Backup\Tasks\Monitor\BackupDestinationStatusFactory;
-use Symfony\Component\Process\Process;
 
 class ServerResource extends Partition
 {
@@ -42,6 +43,10 @@ public function calculate(NovaRequest $request): PartitionResult
         $command = [];
         if ($this->type === 'backup') {
             // Get used storage from backup info
+            $quota = GoogleDriveQuota::getQuota();
+
+            $used = $quota['used'];   // dalam GB
+            $total = $quota['total']; // dalam GB
             $backupInfo = $this->getBackupInfo();
             $used = isset($backupInfo[0]['usedStorage']) ? round($backupInfo[0]['usedStorage'] / 1024 / 1024 / 1024, 2) : 0;
             $value = round($used, 2);

config/app.php

@@ -153,7 +153,6 @@
 
     'disk_space_limit' => env('DISK_SPACE_LIMIT', 107374182400),
     'disk_inode_limit' => env('DISK_INODE_LIMIT', 400000),
-    'disk_backup_limit' => env('DISK_BACKUP_LIMIT', 15728640),
 
     /*
     |--------------------------------------------------------------------------