feat: turn search_trips into the website's travel search

tests/Enum/RoomTypeTest.php

@@ -0,0 +1,38 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Tests\Enum;
+
+use App\Enum\RoomType;
+use PHPUnit\Framework\Attributes\DataProvider;
+use PHPUnit\Framework\TestCase;
+
+/**
+ * Pins the classification to TYPO3's RoomTypeResolver, which the website search filters on.
+ */
+class RoomTypeTest extends TestCase
+{
+    /**
+     * @return iterable<string, array{?string, ?string, ?int, ?int, ?RoomType}>
+     */
+    public static function rooms(): iterable
+    {
+        yield 'single room' => ['EZ', 'Einzelzimmer Dusche/WC', 1, 1, RoomType::ForOne];
+        yield 'double room' => ['DZ', 'Doppelzimmer', 2, 1, RoomType::ForTwo];
+        yield 'six-bed room' => ['6BZ', 'Sechsbettzimmer', 6, 4, RoomType::ForSix];
+        yield 'nine and more' => ['MBZ', 'Gruppenraum', 12, 8, RoomType::ForNinePlus];
+        yield 'shared bed by "Bett im"' => ['MBZET', 'Bett im Mehrbettzimmer Etagendusche/-WC', 1, 1, RoomType::WithOthers];
+        yield 'shared bed by "mit anderen"' => ['APP', 'Apartment mit anderen Kunden', 4, 1, RoomType::WithOthers];
+        yield 'marker in any case' => ['X', 'BETT IM LAGER', 1, 1, RoomType::WithOthers];
+        yield 'minPax when maxPax is missing' => ['DZ', 'Doppelzimmer', null, 2, RoomType::ForTwo];
+        yield 'no occupancy at all' => ['X', 'Unbekannt', 0, 0, RoomType::WithOthers];
+        yield 'baby row is no room' => ['Baby', 'Babypreis für 0-2 Jährige', 1, 1, null];
+    }
+
+    #[DataProvider('rooms')]
+    public function testClassifiesByCapacityWithTheSharedBedAndBabyExceptions(?string $code, ?string $label, ?int $maxPax, ?int $minPax, ?RoomType $expected): void
+    {
+        self::assertSame($expected, RoomType::classify($code, $label, $maxPax, $minPax));
+    }
+}