Added tools to repair and check last modification time

app/Classes/Bundle.php

@@ -7,6 +7,7 @@
 use App\Classes\Traits\ManagesMetadata;
 use App\Contracts\Bundles;
 use App\Services\BundleRenderers\Facades\BundleRenderer;
+use Carbon\Carbon;
 use Exception;
 use Illuminate\Filesystem\FilesystemAdapter;
 use Illuminate\Support\Str;
@@ -111,6 +112,7 @@ public function save(): void
     public function repair(): void
     {
         $this->load();
+        $this->repairCover();
         $this->lintMarkdown();
         $this->repairAttachments();
         $this->save();
@@ -140,6 +142,13 @@ public function render()
         return $renderer->render();
     }
 
+    public function renderCard()
+    {
+        $renderer = BundleRenderer::getBundleRendererFor($this);
+
+        return $renderer->renderCard();
+    }
+
     /**
      * Return a list of bundles in the specified path
      */
@@ -167,6 +176,47 @@ public static function findBundles(FilesystemAdapter $disk, ?string $path = '/',
         }
     }
 
+    /**
+     * Return the most recent modification date of this bundle and all
+     * sub-bundles
+     */
+    public function lastModified(): ?Carbon
+    {
+        $dates = $this->disk
+            ->listContents($this->getPath(), true)
+            ->map(fn (StorageAttributes $attributes) => $attributes->lastModified())
+            ->toArray();
+
+        $latestTime = 0;
+
+        foreach ($dates as $date) {
+            if ($date > $latestTime) {
+                $latestTime = $date;
+            }
+        }
+
+        return $latestTime == 0 ? null : Carbon::parse($latestTime);
+    }
+
+    private function repairCover()
+    {
+        $cover = $this->metadata()->get('cover');
+
+        if (empty($cover)) {
+            return;
+        }
+
+        if (is_array($cover)) {
+            $path = $cover['url'];
+
+            foreach ($this->attachments(AttachmentsManager::Images)->manager()->get('files') as $ref => $data) {
+                if (Str::endsWith($data['filename'], $path)) {
+                    $this->metadata()->set('cover', $ref);
+                }
+            }
+        }
+    }
+
     /**
      * Return a normalized representation of bundle's path
      */