feat: xlsx export of booking edit draft data for admins

composer.json

@@ -21,6 +21,7 @@
     "nelexa/zip": "^4.0",
     "nesbot/carbon": "^3.8",
     "phpdocumentor/reflection-docblock": "^5.6",
+    "phpoffice/phpspreadsheet": "^5.4",
     "phpstan/phpdoc-parser": "^2.0",
     "spatie/crypto": "^2.1",
     "symfony/apache-pack": "^1.0",

composer.lock

@@ -4,7 +4,7 @@
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             "name": "carbonphp/carbon-doctrine-types",
@@ -75,6 +75,85 @@
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             "time": "2023-12-11T17:09:12+00:00"
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+                "phpunit/phpunit": "^8 || ^9"
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+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Jordi Boggiano",
+                    "email": "[email protected]",
+                    "homepage": "http://seld.be"
+                }
+            ],
+            "description": "PCRE wrapping library that offers type-safe preg_* replacements.",
+            "keywords": [
+                "PCRE",
+                "preg",
+                "regex",
+                "regular expression"
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+            "time": "2024-11-12T16:29:46+00:00"
+        },
         {
             "name": "defuse/php-encryption",
             "version": "v2.4.0",
@@ -2366,6 +2445,191 @@
             ],
             "time": "2025-12-07T16:03:21+00:00"
         },
+        {
+            "name": "maennchen/zipstream-php",
+            "version": "3.1.2",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/maennchen/ZipStream-PHP.git",
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+                "reference": "aeadcf5c412332eb426c0f9b4485f6accba2a99f",
+                "shasum": ""
+            },
+            "require": {
+                "ext-mbstring": "*",
+                "ext-zlib": "*",
+                "php-64bit": "^8.2"
+            },
+            "require-dev": {
+                "brianium/paratest": "^7.7",
+                "ext-zip": "*",
+                "friendsofphp/php-cs-fixer": "^3.16",
+                "guzzlehttp/guzzle": "^7.5",
+                "mikey179/vfsstream": "^1.6",
+                "php-coveralls/php-coveralls": "^2.5",
+                "phpunit/phpunit": "^11.0",
+                "vimeo/psalm": "^6.0"
+            },
+            "suggest": {
+                "guzzlehttp/psr7": "^2.4",
+                "psr/http-message": "^2.0"
+            },
+            "type": "library",
+            "autoload": {
+                "psr-4": {
+                    "ZipStream\\": "src/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Paul Duncan",
+                    "email": "[email protected]"
+                },
+                {
+                    "name": "Jonatan Männchen",
+                    "email": "[email protected]"
+                },
+                {
+                    "name": "Jesse Donat",
+                    "email": "[email protected]"
+                },
+                {
+                    "name": "András Kolesár",
+                    "email": "[email protected]"
+                }
+            ],
+            "description": "ZipStream is a library for dynamically streaming dynamic zip files from PHP without writing to the disk at all on the server.",
+            "keywords": [
+                "stream",
+                "zip"
+            ],
+            "support": {
+                "issues": "https://github.com/maennchen/ZipStream-PHP/issues",
+                "source": "https://github.com/maennchen/ZipStream-PHP/tree/3.1.2"
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+            "time": "2025-01-27T12:07:53+00:00"
+        },
+        {
+            "name": "markbaker/complex",
+            "version": "3.0.2",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/MarkBaker/PHPComplex.git",
+                "reference": "95c56caa1cf5c766ad6d65b6344b807c1e8405b9"
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+            },
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+            },
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+                "squizlabs/php_codesniffer": "^3.7"
+            },
+            "type": "library",
+            "autoload": {
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+                    "Complex\\": "classes/src/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Mark Baker",
+                    "email": "[email protected]"
+                }
+            ],
+            "description": "PHP Class for working with complex numbers",
+            "homepage": "https://github.com/MarkBaker/PHPComplex",
+            "keywords": [
+                "complex",
+                "mathematics"
+            ],
+            "support": {
+                "issues": "https://github.com/MarkBaker/PHPComplex/issues",
+                "source": "https://github.com/MarkBaker/PHPComplex/tree/3.0.2"
+            },
+            "time": "2022-12-06T16:21:08+00:00"
+        },
+        {
+            "name": "markbaker/matrix",
+            "version": "3.0.1",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/MarkBaker/PHPMatrix.git",
+                "reference": "728434227fe21be27ff6d86621a1b13107a2562c"
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+                "url": "https://api.github.com/repos/MarkBaker/PHPMatrix/zipball/728434227fe21be27ff6d86621a1b13107a2562c",
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+                "shasum": ""
+            },
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+                "phpdocumentor/phpdocumentor": "2.*",
+                "phploc/phploc": "^4.0",
+                "phpmd/phpmd": "2.*",
+                "phpunit/phpunit": "^7.0 || ^8.0 || ^9.0",
+                "sebastian/phpcpd": "^4.0",
+                "squizlabs/php_codesniffer": "^3.7"
+            },
+            "type": "library",
+            "autoload": {
+                "psr-4": {
+                    "Matrix\\": "classes/src/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Mark Baker",
+                    "email": "[email protected]"
+                }
+            ],
+            "description": "PHP Class for working with matrices",
+            "homepage": "https://github.com/MarkBaker/PHPMatrix",
+            "keywords": [
+                "mathematics",
+                "matrix",
+                "vector"
+            ],
+            "support": {
+                "issues": "https://github.com/MarkBaker/PHPMatrix/issues",
+                "source": "https://github.com/MarkBaker/PHPMatrix/tree/3.0.1"
+            },
+            "time": "2022-12-02T22:17:43+00:00"
+        },
         {
             "name": "masterminds/html5",
             "version": "2.10.0",
@@ -3086,6 +3350,115 @@
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             "time": "2025-11-21T15:09:14+00:00"
         },
+        {
+            "name": "phpoffice/phpspreadsheet",
+            "version": "5.4.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/PHPOffice/PhpSpreadsheet.git",
+                "reference": "48f2fe37d64c2dece0ef71fb2ac55497566782af"
+            },
+            "dist": {
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+                "url": "https://api.github.com/repos/PHPOffice/PhpSpreadsheet/zipball/48f2fe37d64c2dece0ef71fb2ac55497566782af",
+                "reference": "48f2fe37d64c2dece0ef71fb2ac55497566782af",
+                "shasum": ""
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+                "ext-ctype": "*",
+                "ext-dom": "*",
+                "ext-fileinfo": "*",
+                "ext-filter": "*",
+                "ext-gd": "*",
+                "ext-iconv": "*",
+                "ext-libxml": "*",
+                "ext-mbstring": "*",
+                "ext-simplexml": "*",
+                "ext-xml": "*",
+                "ext-xmlreader": "*",
+                "ext-xmlwriter": "*",
+                "ext-zip": "*",
+                "ext-zlib": "*",
+                "maennchen/zipstream-php": "^2.1 || ^3.0",
+                "markbaker/complex": "^3.0",
+                "markbaker/matrix": "^3.0",
+                "php": "^8.1",
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+                "friendsofphp/php-cs-fixer": "^3.2",
+                "mitoteam/jpgraph": "^10.5",
+                "mpdf/mpdf": "^8.1.1",
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+                "squizlabs/php_codesniffer": "^3.7",
+                "tecnickcom/tcpdf": "^6.5"
+            },
+            "suggest": {
+                "dompdf/dompdf": "Option for rendering PDF with PDF Writer",
+                "ext-intl": "PHP Internationalization Functions, required for NumberFormat Wizard and StringHelper::setLocale()",
+                "mitoteam/jpgraph": "Option for rendering charts, or including charts with PDF or HTML Writers",
+                "mpdf/mpdf": "Option for rendering PDF with PDF Writer",
+                "tecnickcom/tcpdf": "Option for rendering PDF with PDF Writer"
+            },
+            "type": "library",
+            "autoload": {
+                "psr-4": {
+                    "PhpOffice\\PhpSpreadsheet\\": "src/PhpSpreadsheet"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Maarten Balliauw",
+                    "homepage": "https://blog.maartenballiauw.be"
+                },
+                {
+                    "name": "Mark Baker",
+                    "homepage": "https://markbakeruk.net"
+                },
+                {
+                    "name": "Franck Lefevre",
+                    "homepage": "https://rootslabs.net"
+                },
+                {
+                    "name": "Erik Tilt"
+                },
+                {
+                    "name": "Adrien Crivelli"
+                },
+                {
+                    "name": "Owen Leibman"
+                }
+            ],
+            "description": "PHPSpreadsheet - Read, Create and Write Spreadsheet documents in PHP - Spreadsheet engine",
+            "homepage": "https://github.com/PHPOffice/PhpSpreadsheet",
+            "keywords": [
+                "OpenXML",
+                "excel",
+                "gnumeric",
+                "ods",
+                "php",
+                "spreadsheet",
+                "xls",
+                "xlsx"
+            ],
+            "support": {
+                "issues": "https://github.com/PHPOffice/PhpSpreadsheet/issues",
+                "source": "https://github.com/PHPOffice/PhpSpreadsheet/tree/5.4.0"
+            },
+            "time": "2026-01-11T04:52:00+00:00"
+        },
         {
             "name": "phpseclib/phpseclib",
             "version": "3.0.48",
@@ -3770,6 +4143,57 @@
             },
             "time": "2024-09-11T13:17:53+00:00"
         },
+        {
+            "name": "psr/simple-cache",
+            "version": "3.0.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/php-fig/simple-cache.git",
+                "reference": "764e0b3939f5ca87cb904f570ef9be2d78a07865"
+            },
+            "dist": {
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+                "url": "https://api.github.com/repos/php-fig/simple-cache/zipball/764e0b3939f5ca87cb904f570ef9be2d78a07865",
+                "reference": "764e0b3939f5ca87cb904f570ef9be2d78a07865",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=8.0.0"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "3.0.x-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Psr\\SimpleCache\\": "src/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "PHP-FIG",
+                    "homepage": "https://www.php-fig.org/"
+                }
+            ],
+            "description": "Common interfaces for simple caching",
+            "keywords": [
+                "cache",
+                "caching",
+                "psr",
+                "psr-16",
+                "simple-cache"
+            ],
+            "support": {
+                "source": "https://github.com/php-fig/simple-cache/tree/3.0.0"
+            },
+            "time": "2021-10-29T13:26:27+00:00"
+        },
         {
             "name": "spatie/crypto",
             "version": "2.1.1",
@@ -10458,85 +10882,6 @@
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-                    "email": "[email protected]",
-                    "homepage": "http://seld.be"
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migrations/Version20260113140000.php

@@ -0,0 +1,28 @@
+<?php
+
+declare(strict_types=1);
+
+namespace DoctrineMigrations;
+
+use Doctrine\DBAL\Schema\Schema;
+use Doctrine\Migrations\AbstractMigration;
+
+final class Version20260113140000 extends AbstractMigration
+{
+    public function getDescription(): string
+    {
+        return 'Add date_id and hotel_id columns to booking_edit_draft table for export functionality';
+    }
+
+    public function up(Schema $schema): void
+    {
+        $this->addSql('ALTER TABLE booking_edit_draft ADD date_id INT DEFAULT NULL');
+        $this->addSql('ALTER TABLE booking_edit_draft ADD hotel_id INT DEFAULT NULL');
+    }
+
+    public function down(Schema $schema): void
+    {
+        $this->addSql('ALTER TABLE booking_edit_draft DROP date_id');
+        $this->addSql('ALTER TABLE booking_edit_draft DROP hotel_id');
+    }
+}

src/Controller/Admin/BookingEditDraftCrudController.php

@@ -1,24 +1,32 @@
 <?php
 
+declare(strict_types=1);
+
 namespace App\Controller\Admin;
 
 use App\Admin\Field\JsonDataField;
 use App\Entity\BookingEditDraft;
 use App\Entity\User;
+use App\Service\BookingExportService;
 use EasyCorp\Bundle\EasyAdminBundle\Config\Action;
 use EasyCorp\Bundle\EasyAdminBundle\Config\Actions;
 use EasyCorp\Bundle\EasyAdminBundle\Config\Crud;
 use EasyCorp\Bundle\EasyAdminBundle\Controller\AbstractCrudController;
 use EasyCorp\Bundle\EasyAdminBundle\Field\AssociationField;
 use EasyCorp\Bundle\EasyAdminBundle\Field\DateTimeField;
-use EasyCorp\Bundle\EasyAdminBundle\Field\IdField;
 use EasyCorp\Bundle\EasyAdminBundle\Field\IntegerField;
-use EasyCorp\Bundle\EasyAdminBundle\Field\TextEditorField;
+use EasyCorp\Bundle\EasyAdminBundle\Router\AdminUrlGenerator;
-use EasyCorp\Bundle\EasyAdminBundle\Field\TextField;
+use Symfony\Component\HttpFoundation\Response;
-use Symfony\Bundle\MakerBundle\Doctrine\RelationManyToOne;
+use Symfony\Component\Routing\Attribute\Route;
 
 class BookingEditDraftCrudController extends AbstractCrudController
 {
+    public function __construct(
+        private readonly BookingExportService $exportService,
+        private readonly AdminUrlGenerator $adminUrlGenerator,
+    ) {
+    }
+
     public static function getEntityFqcn(): string
     {
         return BookingEditDraft::class;
@@ -26,14 +34,51 @@ class BookingEditDraftCrudController extends AbstractCrudController
 
     public function configureActions(Actions $actions): Actions
     {
+        $exportAction = Action::new('exportExcel', 'Excel Export', 'fa fa-file-excel')
+            ->linkToRoute(
+                'admin_booking_draft_export',
+                static fn (BookingEditDraft $entity): array => ['id' => $entity->getId()]
+            )
+            ->displayIf(static fn (BookingEditDraft $entity): bool => $entity->hasExportData());
+
         return $actions
             ->add(Crud::PAGE_INDEX, Action::DETAIL)
+            ->add(Crud::PAGE_INDEX, $exportAction)
+            ->add(Crud::PAGE_DETAIL, $exportAction)
             ->remove(Crud::PAGE_INDEX, Action::NEW)
             ->remove(Crud::PAGE_INDEX, Action::EDIT)
             ->remove(Crud::PAGE_DETAIL, Action::EDIT)
             ;
     }
 
+    #[Route('/admin/booking-draft/{id}/export', name: 'admin_booking_draft_export', requirements: ['id' => '\d+'])]
+    public function export(BookingEditDraft $draft): Response
+    {
+        if (false === $draft->hasExportData()) {
+            $this->addFlash('danger', 'Export nicht möglich: Reisedaten fehlen');
+
+            $url = $this->adminUrlGenerator
+                ->setController(self::class)
+                ->setAction(Action::INDEX)
+                ->generateUrl();
+
+            return $this->redirect($url);
+        }
+
+        try {
+            return $this->exportService->createExportResponse($draft);
+        } catch (\RuntimeException $e) {
+            $this->addFlash('danger', 'Export fehlgeschlagen: ' . $e->getMessage());
+
+            $url = $this->adminUrlGenerator
+                ->setController(self::class)
+                ->setAction(Action::INDEX)
+                ->generateUrl();
+
+            return $this->redirect($url);
+        }
+    }
+
     public function configureCrud(Crud $crud): Crud
     {
         return $crud

src/Entity/BookingEditDraft.php

@@ -37,6 +37,18 @@ class BookingEditDraft
     #[ORM\Column(type: 'date_immutable')]
     private \DateTimeImmutable $travelDate;
 
+    /**
+     * BusProNet travel date ID (termin idbuspro) for loading travel data.
+     */
+    #[ORM\Column(type: 'integer', nullable: true)]
+    private ?int $dateId = null;
+
+    /**
+     * BusProNet hotel ID for loading travel data.
+     */
+    #[ORM\Column(type: 'integer', nullable: true)]
+    private ?int $hotelId = null;
+
     #[ORM\Column(type: 'json')]
     private array $formData = [];
 
@@ -95,6 +107,38 @@ class BookingEditDraft
         return $this;
     }
 
+    public function getDateId(): ?int
+    {
+        return $this->dateId;
+    }
+
+    public function setDateId(?int $dateId): static
+    {
+        $this->dateId = $dateId;
+
+        return $this;
+    }
+
+    public function getHotelId(): ?int
+    {
+        return $this->hotelId;
+    }
+
+    public function setHotelId(?int $hotelId): static
+    {
+        $this->hotelId = $hotelId;
+
+        return $this;
+    }
+
+    /**
+     * Checks if the draft has the required travel IDs for export functionality.
+     */
+    public function hasExportData(): bool
+    {
+        return null !== $this->dateId && null !== $this->hotelId;
+    }
+
     public function getFormData(): array
     {
         return $this->formData;

src/Service/BookingEditDraftService.php

@@ -63,6 +63,8 @@ class BookingEditDraftService
         $existingDraft = $this->findDraft($user, $bookingId);
 
         $bookingNumber = $bookingDto->booking?->bookingNumber;
+        $dateId = $bookingDto->travel->id;
+        $hotelId = $bookingDto->travel->hotelId;
 
         if (null !== $existingDraft) {
             $existingDraft->setFormData($formData);
@@ -70,9 +72,19 @@ class BookingEditDraftService
             if (null === $existingDraft->getBookingNumber() && null !== $bookingNumber) {
                 $existingDraft->setBookingNumber($bookingNumber);
             }
+
+            if (null === $existingDraft->getDateId() && null !== $dateId) {
+                $existingDraft->setDateId($dateId);
+            }
+
+            if (null === $existingDraft->getHotelId() && null !== $hotelId) {
+                $existingDraft->setHotelId($hotelId);
+            }
         } else {
             $draft = new BookingEditDraft($user, $bookingId, $travelDate, $formData);
             $draft->setBookingNumber($bookingNumber);
+            $draft->setDateId($dateId);
+            $draft->setHotelId($hotelId);
             $this->entityManager->persist($draft);
         }
 

src/Service/BookingExportService.php

@@ -0,0 +1,353 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Service;
+
+use App\Entity\BookingEditDraft;
+use PhpOffice\PhpSpreadsheet\Spreadsheet;
+use PhpOffice\PhpSpreadsheet\Writer\Xlsx;
+use Symfony\Component\HttpFoundation\StreamedResponse;
+
+/**
+ * Generates Excel exports from booking edit drafts.
+ *
+ * This service transforms draft booking data into a downloadable Excel file,
+ * converting all service, room, and pickup IDs to human-readable labels using
+ * travel data loaded from XML files.
+ */
+class BookingExportService
+{
+    private const COLUMN_HEADERS = [
+        'Vorname',
+        'Nachname',
+        'Geburtsdatum',
+        'E-Mail',
+        'Mobil',
+        'Geschlecht',
+        'Nationalität',
+        'Straße',
+        'PLZ',
+        'Ort',
+        'Land',
+        'Größe',
+        'Gewicht',
+        'Schuhgröße',
+        'Zimmer',
+        'Zimmerwünsche',
+        'Kennzeichen',
+        'Skipass',
+        'Kurse',
+        'Verpflegung',
+        'Leihmaterial',
+        'Leihmaterial-Versicherung',
+        'Zusatzleistungen',
+        'Hinfahrt',
+        'Rückfahrt',
+        'Zustieg',
+        'Parkplatz',
+        'Versicherung',
+        'Sammelversicherung',
+        'Kaufgutschein',
+        'Aktionsgutschein',
+    ];
+
+    public function __construct(
+        private readonly TravelDataService $travelDataService,
+    ) {
+    }
+
+    /**
+     * Creates a StreamedResponse with the Excel export for the given draft.
+     *
+     * @param BookingEditDraft $draft The draft to export
+     *
+     * @return StreamedResponse The response containing the Excel file
+     *
+     * @throws \RuntimeException If travel data cannot be loaded
+     */
+    public function createExportResponse(BookingEditDraft $draft): StreamedResponse
+    {
+        if (false === $draft->hasExportData()) {
+            throw new \RuntimeException('Draft is missing required travel IDs for export');
+        }
+
+        $travel = $this->travelDataService->getTravelData(
+            $draft->getDateId(),
+            $draft->getHotelId()
+        );
+
+        if (null === $travel) {
+            throw new \RuntimeException('Could not load travel data for export');
+        }
+
+        $lookups = $this->buildLookups($travel);
+        $spreadsheet = $this->createSpreadsheet($draft, $lookups);
+
+        $filename = sprintf(
+            'buchung_%d_%s.xlsx',
+            $draft->getBookingNumber() ?? $draft->getBookingId(),
+            $draft->getTravelDate()->format('Y-m-d')
+        );
+
+        $response = new StreamedResponse(function () use ($spreadsheet): void {
+            $writer = new Xlsx($spreadsheet);
+            $writer->save('php://output');
+        });
+
+        $response->headers->set('Content-Type', 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet');
+        $response->headers->set('Content-Disposition', sprintf('attachment; filename="%s"', $filename));
+        $response->headers->set('Cache-Control', 'max-age=0');
+
+        return $response;
+    }
+
+    /**
+     * Builds lookup arrays for converting IDs to labels.
+     *
+     * @param \App\BusProNet\Model\Travel $travel The travel data
+     *
+     * @return array{services: array<int, string>, rooms: array<int, string>, pickups: array<int, string>}
+     */
+    private function buildLookups(\App\BusProNet\Model\Travel $travel): array
+    {
+        $services = [];
+        $rooms = [];
+        $pickups = [];
+
+        foreach ($travel->additionalServices as $service) {
+            if (null !== $service->id && null !== $service->label) {
+                $services[$service->id] = $service->label;
+            }
+        }
+
+        foreach ($travel->transportationServices as $service) {
+            if (null !== $service->id && null !== $service->label) {
+                $services[$service->id] = $service->label;
+            }
+        }
+
+        foreach ($travel->rooms as $room) {
+            if (null !== $room->id && null !== $room->label) {
+                $rooms[$room->id] = $room->label;
+            }
+        }
+
+        foreach ($travel->pickupsOutbound as $pickup) {
+            if (null !== $pickup->id) {
+                $pickups[$pickup->id] = $pickup->getLabel();
+            }
+        }
+
+        foreach ($travel->pickupsInbound as $pickup) {
+            if (null !== $pickup->id) {
+                $pickups[$pickup->id] = $pickup->getLabel();
+            }
+        }
+
+        return [
+            'services' => $services,
+            'rooms' => $rooms,
+            'pickups' => $pickups,
+        ];
+    }
+
+    /**
+     * Creates the spreadsheet with participant data.
+     *
+     * @param BookingEditDraft $draft   The draft containing form data
+     * @param array            $lookups The ID to label lookup arrays
+     */
+    private function createSpreadsheet(BookingEditDraft $draft, array $lookups): Spreadsheet
+    {
+        $spreadsheet = new Spreadsheet();
+        $sheet = $spreadsheet->getActiveSheet();
+        $sheet->setTitle('Teilnehmer');
+
+        // Write headers
+        foreach (self::COLUMN_HEADERS as $col => $header) {
+            $sheet->setCellValue([$col + 1, 1], $header);
+        }
+
+        // Style header row
+        $headerStyle = [
+            'font' => ['bold' => true],
+            'fill' => [
+                'fillType' => \PhpOffice\PhpSpreadsheet\Style\Fill::FILL_SOLID,
+                'startColor' => ['rgb' => 'E0E0E0'],
+            ],
+        ];
+        $lastColumn = \PhpOffice\PhpSpreadsheet\Cell\Coordinate::stringFromColumnIndex(count(self::COLUMN_HEADERS));
+        $sheet->getStyle('A1:' . $lastColumn . '1')->applyFromArray($headerStyle);
+
+        // Write participant data
+        $formData = $draft->getFormData();
+        $participants = $formData['participants'] ?? [];
+
+        $row = 2;
+        foreach ($participants as $participant) {
+            $this->writeParticipantRow($sheet, $row, $participant, $lookups);
+            ++$row;
+        }
+
+        // Auto-size columns
+        foreach (range(1, count(self::COLUMN_HEADERS)) as $col) {
+            $colLetter = \PhpOffice\PhpSpreadsheet\Cell\Coordinate::stringFromColumnIndex($col);
+            $sheet->getColumnDimension($colLetter)->setAutoSize(true);
+        }
+
+        return $spreadsheet;
+    }
+
+    /**
+     * Writes a single participant row to the spreadsheet.
+     */
+    private function writeParticipantRow(
+        \PhpOffice\PhpSpreadsheet\Worksheet\Worksheet $sheet,
+        int $row,
+        array $participant,
+        array $lookups
+    ): void {
+        $personal = $participant['personalData'] ?? [];
+        $address = $participant['address'] ?? [];
+        $body = $participant['bodyDimensions'] ?? [];
+        $room = $participant['roomAssignment'] ?? [];
+        $services = $participant['services'] ?? [];
+        $vouchers = $participant['vouchers'] ?? [];
+
+        $data = [
+            $personal['firstName'] ?? '',
+            $personal['lastName'] ?? '',
+            $this->formatDate($personal['dateOfBirth'] ?? null),
+            $personal['email'] ?? '',
+            $personal['mobile'] ?? '',
+            $this->mapGender($personal['gender'] ?? null),
+            $personal['nationality'] ?? '',
+            $address['street'] ?? '',
+            $address['postCode'] ?? '',
+            $address['city'] ?? '',
+            $address['country'] ?? '',
+            $body['height'] ?? '',
+            $body['weight'] ?? '',
+            $body['shoeSize'] ?? '',
+            $this->resolveRoom($room['assignedRoomId'] ?? null, $lookups['rooms']),
+            $room['remarksRoom'] ?? '',
+            $participant['licensePlate'] ?? '',
+            $this->resolveService($services['skiPass'] ?? null, $lookups['services']),
+            $this->resolveServiceArray($services['courses'] ?? [], $lookups['services']),
+            $this->resolveServiceArray($services['board'] ?? [], $lookups['services']),
+            $this->resolveServiceArray($services['rentals'] ?? [], $lookups['services']),
+            $this->resolveService($services['rentalInsurance'] ?? null, $lookups['services']),
+            $this->resolveServiceArray($services['additionalServices'] ?? [], $lookups['services']),
+            $this->resolveService($services['transportationOutbound'] ?? null, $lookups['services']),
+            $this->resolveService($services['transportationInbound'] ?? null, $lookups['services']),
+            $this->resolvePickup($services['pickup'] ?? null, $lookups['pickups']),
+            $this->formatBoolean($services['parking'] ?? false),
+            $this->resolveService($services['insurance'] ?? null, $lookups['services']),
+            $this->formatBoolean($services['bulkInsuranceBooking'] ?? false),
+            $vouchers['purchaseVoucherCode'] ?? '',
+            $vouchers['promoVoucherCode'] ?? '',
+        ];
+
+        foreach ($data as $col => $value) {
+            $sheet->setCellValue([$col + 1, $row], $value);
+        }
+    }
+
+    /**
+     * Formats a date string to German format.
+     */
+    private function formatDate(?string $date): string
+    {
+        if (null === $date || '' === $date) {
+            return '';
+        }
+
+        try {
+            $dateTime = new \DateTimeImmutable($date);
+
+            return $dateTime->format('d.m.Y');
+        } catch (\Exception) {
+            return $date;
+        }
+    }
+
+    /**
+     * Maps gender code to German label.
+     */
+    private function mapGender(?string $gender): string
+    {
+        return match ($gender) {
+            'M' => 'männlich',
+            'W' => 'weiblich',
+            'D' => 'divers',
+            default => $gender ?? '',
+        };
+    }
+
+    /**
+     * Formats a boolean value to German text.
+     */
+    private function formatBoolean(bool $value): string
+    {
+        return $value ? 'Ja' : 'Nein';
+    }
+
+    /**
+     * Resolves a single service ID to its label.
+     */
+    private function resolveService(int|string|null $serviceId, array $lookup): string
+    {
+        if (null === $serviceId || '' === $serviceId) {
+            return '';
+        }
+
+        $id = (int) $serviceId;
+
+        return $lookup[$id] ?? (string) $serviceId;
+    }
+
+    /**
+     * Resolves an array of service IDs to labels, joined by pipe.
+     */
+    private function resolveServiceArray(array $serviceIds, array $lookup): string
+    {
+        if (true === empty($serviceIds)) {
+            return '';
+        }
+
+        $labels = [];
+        foreach ($serviceIds as $serviceId) {
+            if (null !== $serviceId && '' !== $serviceId) {
+                $id = (int) $serviceId;
+                $labels[] = $lookup[$id] ?? (string) $serviceId;
+            }
+        }
+
+        return implode(', ', $labels);
+    }
+
+    /**
+     * Resolves a room ID to its label.
+     */
+    private function resolveRoom(?int $roomId, array $lookup): string
+    {
+        if (null === $roomId) {
+            return '';
+        }
+
+        return $lookup[$roomId] ?? (string) $roomId;
+    }
+
+    /**
+     * Resolves a pickup ID to its label.
+     */
+    private function resolvePickup(?int $pickupId, array $lookup): string
+    {
+        if (null === $pickupId) {
+            return '';
+        }
+
+        return $lookup[$pickupId] ?? (string) $pickupId;
+    }
+}