feat: cron controlled cli command to sync xml data with remote

src/BusProNet/Model/XmlExportInfo.php

@@ -0,0 +1,48 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\BusProNet\Model;
+
+final readonly class XmlExportInfo
+{
+    private const INFO_FILENAME = 'uebertragung.info';
+    private const TIMESTAMP_FORMAT = 'd.m.Y H:i:s';
+
+    public function __construct(
+        public \DateTimeImmutable $lastTransfer,
+        public int $fileCount,
+    ) {
+    }
+
+    public static function getFilename(): string
+    {
+        return self::INFO_FILENAME;
+    }
+
+    public static function fromString(string $content): self
+    {
+        $content = mb_convert_encoding($content, 'UTF-8', 'Windows-1252');
+        $lines = array_filter(array_map('trim', explode("\n", $content)));
+
+        if (count($lines) < 3) {
+            throw new \InvalidArgumentException('Invalid uebertragung.info format: expected at least 3 lines');
+        }
+
+        $timestamp = \DateTimeImmutable::createFromFormat(self::TIMESTAMP_FORMAT, $lines[0]);
+        if (false === $timestamp) {
+            throw new \InvalidArgumentException(sprintf('Invalid timestamp format in uebertragung.info: expected "%s", got "%s"', self::TIMESTAMP_FORMAT, $lines[0]));
+        }
+
+        if (1 !== preg_match('/(\d+)/', $lines[2], $matches)) {
+            throw new \InvalidArgumentException(sprintf('Could not extract file count from: "%s"', $lines[2]));
+        }
+
+        return new self($timestamp, (int) $matches[1]);
+    }
+
+    public function isNewerThan(self $other): bool
+    {
+        return $this->lastTransfer > $other->lastTransfer;
+    }
+}