From 9802b0dcf498e51473e1187f85e1de1cb6931e1e Mon Sep 17 00:00:00 2001
From: wivaku <wivaku@users.noreply.github.com>
Date: Wed, 5 Feb 2025 10:20:39 +0100
Subject: [PATCH] check if filename has extension

Fix for bug https://github.com/pxlrbt/filament-excel/issues/95

Checks if filename ends with dot and 3-4 characters.
(note: using 3-4 as this matches the intended use case: csv, xlsx)
---
 src/Exports/Concerns/WithFilename.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Exports/Concerns/WithFilename.php b/src/Exports/Concerns/WithFilename.php
index 3bea9b2..243ac56 100644
--- a/src/Exports/Concerns/WithFilename.php
+++ b/src/Exports/Concerns/WithFilename.php
@@ -27,7 +27,7 @@ abstract protected function getDefaultExtension(): string;
 
     protected function ensureFilenameHasExtension(string $filename): string
     {
-        return Str::contains($filename, '.')
+        return Str::of($filename)->test('/\.\w{3,4}$/')
             ? $filename
             : $filename.'.'.$this->getDefaultExtension();
     }