first upload all files

Modules/Checkout/Mail/Invoice.php

@@ -0,0 +1,54 @@
+<?php
+
+namespace Modules\Checkout\Mail;
+
+use Illuminate\Bus\Queueable;
+use Illuminate\Mail\Mailable;
+use Modules\Media\Entities\File;
+use Illuminate\Queue\SerializesModels;
+use Illuminate\Contracts\Queue\ShouldQueue;
+
+class Invoice extends Mailable implements ShouldQueue
+{
+    use Queueable, SerializesModels;
+
+    /**
+     * The instance of the order.
+     *
+     * @var \Modules\Order\Entities\Order
+     */
+    public $order;
+
+    /**
+     * Create a new message instance.
+     *
+     * @param \Modules\Order\Entities\Order $order
+     * @return void
+     */
+    public function __construct($order)
+    {
+        $this->order = $order;
+    }
+
+    /**
+     * Build the message.
+     *
+     * @return $this
+     */
+    public function build()
+    {
+        app()->setLocale($this->order->locale);
+
+        $this->order->load('products');
+
+        return $this->subject(trans('storefront::invoice.subject', ['id' => $this->order->id]))
+            ->view("emails.{$this->getViewName()}", [
+                'logo' => File::findOrNew(setting('storefront_mail_logo'))->path,
+            ]);
+    }
+
+    private function getViewName()
+    {
+        return 'invoice' . (is_rtl() ? '_rtl' : '');
+    }
+}