dev update

app/Models/Template.php

@@ -17,6 +17,7 @@ class Template extends Model
     protected $fillable = [
         'type_id',
         'scenario',
+        'key',
         'format',
         'invoice_template_id',
         'name',
@@ -44,6 +45,9 @@ class Template extends Model
         if ($this->scenario) {
             Cache::forget(self::CACHE_PREFIX . $this->scenario);
         }
+        if ($this->key) {
+            Cache::forget(self::CACHE_PREFIX . $this->key);
+        }
     }
 
     /** Danh sách variable hợp lệ khai báo trong metadata.variables, key theo variable key. */
@@ -59,6 +63,7 @@ class Template extends Model
     }
 
     public const SCENARIOS = [
+        'layout'                  => 'Bố cục Header/Footer (mặc định)',
         'vm_credentials'          => 'Khởi tạo dịch vụ',
         'renewal_reminder'        => 'Nhắc gia hạn',
         'news_notification'       => 'Thông báo tin tức',
@@ -102,6 +107,30 @@ class Template extends Model
         return $this->belongsTo(self::class, 'invoice_template_id');
     }
 
+    /**
+     * Wrap $contentHtml with the admin-editable "layout" template (scenario=layout),
+     * replacing its {{$content}} placeholder. Falls back to the static blade
+     * template-camp wrapper when no active layout template is configured.
+     */
+    public static function renderWithLayout(?string $subject, string $contentHtml): string
+    {
+        $layout = self::where('scenario', 'layout')->where('status', 1)->first();
+
+        if (!$layout || !$layout->message) {
+            return view('emails.customer.template-camp', [
+                'content'      => $contentHtml,
+                'emailSubject' => $subject,
+            ])->render();
+        }
+
+        $body = str_replace('{{$content}}', $contentHtml, $layout->message);
+
+        return view('emails.customer.template-envelope', [
+            'body'         => $body,
+            'emailSubject' => $subject,
+        ])->render();
+    }
+
     public function type()
     {
         return $this->belongsTo(\App\Models\Type::class);