feat: refactoring of xml parsers

src/BusProNet/XmlParser/CountriesParser.php

@@ -0,0 +1,30 @@
+<?php
+
+namespace App\BusProNet\XmlParser;
+
+use App\BusProNet\Model\BaseData;
+use App\BusProNet\Model\Country;
+use Symfony\Component\DomCrawler\Crawler;
+
+class CountriesParser
+{
+    public function parse(Crawler $result): BaseData
+    {
+        $countries = [];
+
+        $result
+            ->filterXPath('//laender/land')
+            ->each(function (Crawler $node) use (&$countries) {
+                $country = new Country();
+                $country->id = (int) $node->attr('id');
+                $country->name = $node->attr('bezeichnung');
+                $country->token = $node->attr('kuerzel');
+                $country->nationality = $node->attr('nationalitaet');
+
+                $countries[$country->token] = $country;
+            })
+        ;
+
+        return new BaseData($countries);
+    }
+}