Initial commit

app/Rules/PublicFileExists.php

@@ -0,0 +1,23 @@
+<?php
+
+namespace App\Rules;
+
+use Closure;
+use Illuminate\Contracts\Validation\ValidationRule;
+use Illuminate\Support\Facades\Storage;
+use Illuminate\Translation\PotentiallyTranslatedString;
+
+class PublicFileExists implements ValidationRule
+{
+    /**
+     * Run the validation rule.
+     *
+     * @param  Closure(string, ?string=): PotentiallyTranslatedString  $fail
+     */
+    public function validate(string $attribute, mixed $value, Closure $fail): void
+    {
+        if(!Storage::disk('public')->exists($value) ) {
+            $fail("The file {$value} does not exist.");
+        }
+    }
+}