feat: refactoring of xml parsers

src/BusProNet/XmlParser/DocumentsParser.php

@@ -0,0 +1,60 @@
+<?php
+
+namespace App\BusProNet\XmlParser;
+
+use App\BusProNet\Model\File;
+use PhpZip\Exception\ZipException;
+use PhpZip\ZipFile;
+use Symfony\Component\DomCrawler\Crawler;
+
+class DocumentsParser
+{
+    public function parseConfirmation(Crawler $result): ?File
+    {
+        $pdfData = $this->decode($result->filterXPath('//bestaetigungpdf'));
+
+        return new File('bestaetigung.pdf', $pdfData, 'application/pdf');
+    }
+
+    public function parseDocuments(Crawler $result): ?File
+    {
+        $documents = $result->filterXPath('//reisedokumente/reisedokument');
+
+        if (1 === $documents->count()) {
+            $node = $documents->first();
+            [$filename, $pdfData] = $this->getFileInfo($node);
+
+            return new File($filename.'.pdf', $pdfData, 'application/pdf');
+        }
+
+        // In case of multiple documents create ZIP file
+        try {
+            $zip = new ZipFile();
+
+            $documents->each(function (Crawler $node) use (&$zip) {
+                [$filename, $pdfData] = $this->getFileInfo($node);
+                $zip->addFromString($filename.'.pdf', $pdfData);
+            });
+
+            return new File('reisedokumente.zip', $zip->outputAsString(), 'application/zip');
+        }
+        catch (ZipException $e) {
+            return null;
+        }
+    }
+
+    private function decode(Crawler $node): string
+    {
+        [, $pdfData] = explode(',', $node->text());
+
+        return base64_decode($pdfData);
+    }
+
+    private function getFileInfo(Crawler $node): array
+    {
+        $pdfData = $this->decode($node->filterXPath('//pdf'));
+        $filename = $node->filterXPath('//datei')->text();
+
+        return [$filename, $pdfData];
+    }
+}