feat: add frontend map module with maplibre and spiderfy

src/Controller/Frontend/EventMapController.php

@@ -0,0 +1,40 @@
+<?php
+
+declare(strict_types=1);
+
+namespace MummertMedia\EventManagerBundle\Controller\Frontend;
+
+use Contao\CoreBundle\Controller\FrontendModule\AbstractFrontendModuleController;
+use Contao\CoreBundle\DependencyInjection\Attribute\AsFrontendModule;
+use Contao\CoreBundle\Twig\FragmentTemplate;
+use Contao\ModuleModel;
+use MummertMedia\EventManagerBundle\Service\MapModuleDataProvider;
+use Symfony\Component\HttpFoundation\Request;
+use Symfony\Component\HttpFoundation\Response;
+
+#[AsFrontendModule(type: 'eventmanager_map', category: 'eventmanager', template: 'frontend/event_map')]
+class EventMapController extends AbstractFrontendModuleController
+{
+    private const MAP_STYLE_URL = 'https://maps.mummert.media/metadaten/world-light.json';
+
+    public function __construct(
+        private readonly MapModuleDataProvider $mapModuleDataProvider,
+    ) {
+    }
+
+    protected function getResponse(FragmentTemplate $template, ModuleModel $model, Request $request): Response
+    {
+        $containerId = sprintf('eventmanager-map-%d', (int) ($model->id ?? 0));
+        $dataElementId = sprintf('%s-data', $containerId);
+
+        $template->set('mapContainerId', $containerId);
+        $template->set('mapDataElementId', $dataElementId);
+        $template->set('mapStyleUrl', self::MAP_STYLE_URL);
+        $template->set('mapItemsJson', json_encode(
+            $this->mapModuleDataProvider->getMapItems(),
+            \JSON_HEX_TAG | \JSON_HEX_AMP | \JSON_HEX_APOS | \JSON_HEX_QUOT | \JSON_UNESCAPED_UNICODE | \JSON_THROW_ON_ERROR,
+        ));
+
+        return $template->getResponse();
+    }
+}