v5.0.0 update

app/Http/Controllers/V1/Admin/Invoice/SendInvoicePreviewController.php

@@ -0,0 +1,26 @@
+<?php
+
+namespace Crater\Http\Controllers\V1\Admin\Invoice;
+
+use Crater\Http\Controllers\Controller;
+use Crater\Http\Requests\SendInvoiceRequest;
+use Crater\Models\Invoice;
+use Illuminate\Mail\Markdown;
+
+class SendInvoicePreviewController extends Controller
+{
+    /**
+     * Mail a specific invoice to the corresponding customer's email address.
+     *
+     * @param  \Illuminate\Http\Request $request
+     * @return \Illuminate\Http\JsonResponse
+     */
+    public function __invoke(SendInvoiceRequest $request, Invoice $invoice)
+    {
+        $this->authorize('send invoice', $invoice);
+
+        $markdown = new Markdown(view(), config('mail.markdown'));
+
+        return $markdown->render('emails.send.invoice', ['data' => $invoice->sendInvoiceData($request->all())]);
+    }
+}