Fixes to file uploading; include disk name, remove clunky redirect code

app/Services/FileService.php

@@ -0,0 +1,30 @@
+<?php
+
+namespace App\Services;
+
+use App\Interfaces\Service;
+
+/**
+ * Class FileService
+ * @package App\Services
+ */
+class FileService extends Service
+{
+    /**
+     * Save a file to disk and return the path
+     * @param \Illuminate\Http\UploadedFile $file
+     * @param string                        $folder
+     * @param string|null                   $disk
+     * @return string
+     */
+    public function saveFile($file, $folder, $disk = null): string
+    {
+        if (!$disk) {
+            $disk = config('filesystems.public_files');
+        }
+
+        $path_info = pathinfo($file->getClientOriginalName());
+        $filename = str_slug($path_info['filename']).'.'.$path_info['extension'];
+        return $file->storeAs($folder, $filename, $disk);
+    }
+}