eventmanager-bundle/src/Controller/Frontend/EventMapController.php

<?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 Contao\PageModel;
use Contao\StringUtil;
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';
    private const DEFAULT_CENTER_MODE = 'markers';
    private const DEFAULT_EVENT_COLOR = '#BC5067';
    private const DEFAULT_INITIAL_DISPLAY = 'random';

    /**
     * @var list<string>
     */
    private const ALLOWED_INITIAL_DISPLAYS = ['random', 'events', 'organization_tag'];

    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);
        $filterWrapperId = sprintf('%s-filter', $containerId);
        $filterGroupId = sprintf('%s-filter-group', $containerId);
        $showOrganizations = '1' === (string) ($model->mapShowOrganizations ?? '');
        $showExternalOrganizations = '1' === (string) ($model->mapShowExternalOrganizations ?? '');
        $showEvents = '1' === (string) ($model->mapShowEvents ?? '');
        $selectedOrganizationTagIds = array_values(array_unique(array_filter(
            array_map('intval', StringUtil::deserialize($model->organizationTypeTags ?? null, true)),
            static fn (int $tagId): bool => $tagId > 0,
        )));
        $availableOrganizationTags = $this->mapModuleDataProvider->getOrganizationTags();
        $availableOrganizationTagIds = array_map(
            static fn (array $tag): int => (int) ($tag['id'] ?? 0),
            $availableOrganizationTags,
        );
        $selectedOrganizationTagIds = [] === $selectedOrganizationTagIds
            ? []
            : array_values(array_intersect($selectedOrganizationTagIds, $availableOrganizationTagIds));
        $organizationListPageId = (int) ($model->mapOrganizationListPage ?? 0);
        $organizationListBaseUrl = $this->buildOrganizationListBaseUrl($organizationListPageId, $request);
        $initialDisplay = (string) ($model->mapInitialDisplay ?? self::DEFAULT_INITIAL_DISPLAY);
        $initialOrganizationTagId = (int) ($model->mapInitialOrganizationTagId ?? 0);
        $centerMode = (string) ($model->mapCenterMode ?? self::DEFAULT_CENTER_MODE);
        $mapPitch = $this->normalizePitch($model->mapPitch ?? 0);
        $eventColor = $this->normalizeHexColor((string) ($model->mapEventColor ?? self::DEFAULT_EVENT_COLOR));
        $organizationColor = $this->normalizeHexColor((string) ($model->mapOrganizationColor ?? $eventColor), $eventColor);

        if (!in_array($centerMode, ['markers', 'custom'], true)) {
            $centerMode = self::DEFAULT_CENTER_MODE;
        }

        if (!in_array($initialDisplay, self::ALLOWED_INITIAL_DISPLAYS, true)) {
            $initialDisplay = self::DEFAULT_INITIAL_DISPLAY;
        }

        if ($initialOrganizationTagId < 0) {
            $initialOrganizationTagId = 0;
        }

        $template->set('mapContainerId', $containerId);
        $template->set('mapDataElementId', $dataElementId);
        $template->set('mapFilterWrapperId', $filterWrapperId);
        $template->set('mapFilterGroupId', $filterGroupId);
        $template->set('mapStyleUrl', self::MAP_STYLE_URL);
        $template->set('mapShowOrganizations', $showOrganizations);
        $template->set('mapShowEvents', $showEvents);
        $template->set('mapCenterMode', $centerMode);
        $template->set('mapEventColor', $eventColor);
        $template->set('mapOrganizationColor', $organizationColor);
        $template->set('mapInitialDisplay', $initialDisplay);
        $template->set('mapInitialTagId', $initialOrganizationTagId);
        $template->set('mapCenterLat', trim((string) ($model->mapCenterLat ?? '')));
        $template->set('mapCenterLng', trim((string) ($model->mapCenterLng ?? '')));
        $template->set('mapCenterZoom', (int) ($model->mapCenterZoom ?? 12));
        $template->set('mapPitch', $mapPitch);
        $template->set('mapItemsJson', json_encode(
            $this->mapModuleDataProvider->getMapItems($showOrganizations, $showEvents, $showExternalOrganizations, $selectedOrganizationTagIds, $organizationListBaseUrl),
            \JSON_HEX_TAG | \JSON_HEX_AMP | \JSON_HEX_APOS | \JSON_HEX_QUOT | \JSON_UNESCAPED_UNICODE | \JSON_THROW_ON_ERROR,
        ));
        $template->set('mapOrganizationTags', $this->mapModuleDataProvider->getOrganizationTags($selectedOrganizationTagIds));

        return $template->getResponse();
    }

    private function normalizeHexColor(string $value, string $fallback = self::DEFAULT_EVENT_COLOR): string
    {
        $normalized = strtoupper(trim($value));

        if (preg_match('/^#[0-9A-F]{6}$/', $normalized)) {
            return $normalized;
        }

        if (preg_match('/^[0-9A-F]{6}$/', $normalized)) {
            return '#'.$normalized;
        }

        if (preg_match('/^#[0-9A-F]{3}$/', $normalized)) {
            return sprintf(
                '#%1$s%1$s%2$s%2$s%3$s%3$s',
                $normalized[1],
                $normalized[2],
                $normalized[3],
            );
        }

        if (preg_match('/^[0-9A-F]{3}$/', $normalized)) {
            return sprintf(
                '#%1$s%1$s%2$s%2$s%3$s%3$s',
                $normalized[0],
                $normalized[1],
                $normalized[2],
            );
        }

        return $fallback;
    }

    private function normalizePitch(mixed $value): int
    {
        if (!is_scalar($value)) {
            return 0;
        }

        $parsedPitch = (int) round((float) str_replace(',', '.', (string) $value));

        if ($parsedPitch < 0) {
            return 0;
        }

        if ($parsedPitch > 85) {
            return 85;
        }

        return $parsedPitch;
    }

    private function buildOrganizationListBaseUrl(int $pageId, Request $request): string
    {
        if ($pageId <= 0) {
            return '';
        }

        $pageModel = PageModel::findById($pageId);

        if (null === $pageModel) {
            return '';
        }

        $frontendUrl = trim((string) $pageModel->getFrontendUrl());

        if ('' === $frontendUrl) {
            return '';
        }

        if (preg_match('#^https?://#i', $frontendUrl)) {
            return $frontendUrl;
        }

        return rtrim($request->getSchemeAndHttpHost(), '/').'/'.ltrim($frontendUrl, '/');
    }
}