Add all files

app/Http/Requests/Api/Admin/Invoices/UpdateInvoiceRequest.php

@@ -0,0 +1,26 @@
+<?php
+
+namespace App\Http\Requests\Api\Admin\Invoices;
+
+use App\Http\Requests\Api\Admin\AdminApiRequest;
+
+class UpdateInvoiceRequest extends AdminApiRequest
+{
+    protected $permission = 'invoices.update';
+
+    public function rules(): array
+    {
+        return [
+            'user_id' => 'required|exists:users,id',
+            /**
+             * @example USD
+             */
+            'currency_code' => 'required|string|exists:currencies,code',
+            'due_at' => 'nullable|date',
+            /**
+             * @default pending
+             */
+            'status' => 'required|string|in:pending,paid,cancelled', // Status can be one of these values
+        ];
+    }
+}