feat: travel data API endpoint for travelinfo pages in TYPO3

src/BusProNet/Utility/TravelCodeUtility.php

@@ -0,0 +1,23 @@
+<?php
+
+namespace App\BusProNet\Utility;
+
+class TravelCodeUtility
+{
+    public function sanitize(string $travelCode): string
+    {
+        return str_replace(['-', '/'], '', strtoupper($travelCode));
+    }
+
+    public function getBaseCode(string $travelCode): string
+    {
+        return strtoupper(substr($travelCode, 0, -6));
+    }
+
+    public function getDate(string $travelCode): \DateTimeImmutable
+    {
+        $datePart = substr($travelCode, -6);
+
+        return \DateTimeImmutable::createFromFormat('dmy', $datePart);
+    }
+}