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Zweite Runde Kundenrückmeldung: - Range-Ergebnisse: Das Diagramm behält die komplette lineare Skala (rangeMin..rangeMax), aber die Werte-Liste/Tabelle zeigt nur noch die tatsächlich beantworteten Werte. Sonst würde eine große Skala (z. B. Alter 1-100, Schrittweite 1) die Ergebnisseite mit hunderten Nullzeilen fluten. Neues Feld distributionRows für die Liste; distribution bleibt fürs Diagramm. - Große Skalen: X-Achsenbeschriftung wird ausgedünnt (Chart.js autoSkip/ maxTicksLimit, SVG jede n-te Beschriftung), Punkt-Marker verkleinert bzw. ab >40 Punkten weggelassen. Auch die Y-Ticks im PDF-SVG werden gedeckelt. - PDF-Range-Tabelle ohne Farb-Swatch-Spalte (nur Wert/Anzahl/Anteil), da die Kopplung an ein Vollskalen-Diagramm nicht mehr sinnvoll ist. - Aktionslinks in der Frontend-Liste: Öffentliche Ansicht, Entwurfs-Ansicht und Ergebnisse anzeigen öffnen wieder im neuen Fenster (target=_blank); nur Bearbeiten bleibt im selben Tab. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
457 lines
18 KiB
PHP
457 lines
18 KiB
PHP
<?php
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declare(strict_types=1);
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namespace Mummert\SurveyBundle\Service;
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use Contao\Config;
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use Mummert\SurveyBundle\Model\SurveyModel;
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use Symfony\Component\HttpClient\Exception\TransportExceptionInterface;
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use Symfony\Component\HttpFoundation\Response;
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use Symfony\Component\HttpKernel\Exception\BadGatewayHttpException;
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use Symfony\Component\HttpKernel\Exception\BadRequestHttpException;
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use Symfony\Component\Mime\Part\DataPart;
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use Symfony\Component\Mime\Part\Multipart\FormDataPart;
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use Symfony\Contracts\HttpClient\HttpClientInterface;
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use Twig\Environment;
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final class SurveyResultsPdfService
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{
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public function __construct(
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private readonly Environment $twig,
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private readonly HttpClientInterface $httpClient,
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) {
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}
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public function isConfigured(): bool
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{
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return null !== $this->getGotenbergBaseUrl();
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}
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/**
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* @param list<array<string, mixed>> $questionResults
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*/
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public function createPdfExportResponse(SurveyModel $survey, int $completedSubmissionCount, array $questionResults): Response
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{
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$gotenbergBaseUrl = $this->getGotenbergBaseUrl();
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if (null === $gotenbergBaseUrl) {
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throw new BadRequestHttpException('Es wurde keine Gotenberg-URL in den Einstellungen hinterlegt.');
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}
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$html = $this->renderTemplate(
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$survey,
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$completedSubmissionCount,
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$this->prepareQuestionResults($questionResults),
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);
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$filename = $this->buildFilename((string) $survey->title);
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$pdfContent = $this->requestPdfFromGotenberg($gotenbergBaseUrl, $html, $filename);
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return new Response(
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$pdfContent,
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Response::HTTP_OK,
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[
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'Content-Type' => 'application/pdf',
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'Content-Disposition' => sprintf('attachment; filename="%s"', $filename),
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],
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);
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}
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private function getGotenbergBaseUrl(): ?string
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{
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$url = trim((string) Config::get('surveyGotenbergUrl'));
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return '' !== $url ? rtrim($url, '/') : null;
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}
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private function requestPdfFromGotenberg(string $gotenbergBaseUrl, string $html, string $filename): string
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{
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$formData = new FormDataPart([
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'files' => new DataPart($html, 'index.html', 'text/html'),
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'paperWidth' => '8.27',
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'paperHeight' => '11.7',
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'marginTop' => '0.5',
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'marginBottom' => '0.5',
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'marginLeft' => '0.5',
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'marginRight' => '0.5',
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'emulatedMediaType' => 'screen',
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'printBackground' => 'true',
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'failOnConsoleExceptions' => 'true',
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'failOnResourceLoadingFailed' => 'true',
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]);
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$headers = $formData->getPreparedHeaders()->toArray();
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$headers['Gotenberg-Output-Filename'] = pathinfo($filename, PATHINFO_FILENAME);
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try {
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$response = $this->httpClient->request('POST', $gotenbergBaseUrl.'/forms/chromium/convert/html', [
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'headers' => $headers,
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'body' => $formData->bodyToIterable(),
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'timeout' => 60,
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]);
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} catch (TransportExceptionInterface $exception) {
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throw new BadGatewayHttpException('Die Gotenberg-Instanz konnte nicht erreicht werden.', $exception);
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}
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$statusCode = $response->getStatusCode();
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$content = $response->getContent(false);
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if (Response::HTTP_OK !== $statusCode) {
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$message = trim(strip_tags(substr($content, 0, 500)));
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throw new BadGatewayHttpException(sprintf(
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'Die Gotenberg-Instanz hat den PDF-Export mit HTTP %d abgelehnt%s',
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$statusCode,
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'' !== $message ? ': '.$message : '.'
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));
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}
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return $content;
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}
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/**
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* @param list<array<string, mixed>> $questionResults
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*
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* @return list<array<string, mixed>>
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*/
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private function prepareQuestionResults(array $questionResults): array
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{
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$preparedResults = [];
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foreach ($questionResults as $questionResult) {
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$questionResult['pdfChartType'] = (string) (($questionResult['chart']['type'] ?? '') ?: '');
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$questionResult['pdfChartDataUri'] = $this->buildChartDataUri($questionResult);
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$questionResult['pdfChartLegend'] = $this->buildChartLegend($questionResult);
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$preparedResults[] = $questionResult;
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}
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return $preparedResults;
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}
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/**
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* @param array<string, mixed> $questionResult
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*
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* @return list<array{label:string,fillColor:string,borderColor:string,count:int,percentage:int}>
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*/
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private function buildChartLegend(array $questionResult): array
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{
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$chart = $questionResult['chart'] ?? null;
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$chartType = is_array($chart) ? (string) ($chart['type'] ?? '') : '';
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$sourceRows = match ($chartType) {
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'pie' => $questionResult['options'] ?? $questionResult['responseSummary'] ?? [],
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'line' => $questionResult['distribution'] ?? [],
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// Freitext hat kein Diagramm: Antwort-Häufigkeiten wie in der Online-Ansicht zeigen.
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default => $questionResult['responseSummary'] ?? [],
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};
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if (!is_array($sourceRows) || [] === $sourceRows) {
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return [];
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}
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$dataset = is_array($chart) ? ($chart['data']['datasets'][0] ?? []) : [];
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$fillColors = match ($chartType) {
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'pie' => is_array($dataset['backgroundColor'] ?? null) ? $dataset['backgroundColor'] : [],
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'line' => is_array($dataset['pointBackgroundColor'] ?? null) ? $dataset['pointBackgroundColor'] : [],
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default => [],
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};
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$borderColors = match ($chartType) {
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'pie' => is_array($dataset['borderColor'] ?? null) ? $dataset['borderColor'] : [],
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'line' => is_array($dataset['pointBackgroundColor'] ?? null) ? $dataset['pointBackgroundColor'] : [],
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default => [],
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};
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$legend = [];
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foreach (array_values($sourceRows) as $index => $row) {
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if (!is_array($row)) {
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continue;
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}
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$legend[] = [
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'label' => (string) ($row['label'] ?? ''),
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'fillColor' => (string) ($fillColors[$index] ?? '#D3E4F1'),
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'borderColor' => (string) ($borderColors[$index] ?? '#0064AD'),
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'count' => (int) ($row['count'] ?? 0),
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'percentage' => (int) ($row['percentage'] ?? 0),
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];
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}
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return $legend;
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}
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private function renderTemplate(SurveyModel $survey, int $completedSubmissionCount, array $questionResults): string
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{
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$templatePath = __DIR__.'/../Resources/views/pdf/survey_results.html.twig';
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$templateContent = file_get_contents($templatePath);
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if (false === $templateContent) {
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throw new \RuntimeException('Die PDF-Template-Datei konnte nicht gelesen werden: '.$templatePath);
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}
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return $this->twig->createTemplate($templateContent)->render([
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'survey' => $survey,
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'completedSubmissionCount' => $completedSubmissionCount,
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'questionResults' => $questionResults,
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'exportedAt' => (new \DateTimeImmutable())->format('d.m.Y H:i'),
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'documentTitle' => $this->buildDocumentTitle((string) $survey->title),
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'fontFaceCss' => $this->buildEmbeddedFontFaceCss(),
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]);
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}
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private function buildDocumentTitle(string $surveyTitle): string
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{
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$title = trim(strip_tags($surveyTitle));
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return '' !== $title ? $title.' Ergebnisse' : 'Umfrage Ergebnisse';
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}
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private function buildEmbeddedFontFaceCss(): string
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{
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$fontDefinitions = [
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['family' => 'PT Sans Narrow', 'weight' => 400, 'path' => __DIR__.'/../../public/fonts/PTSansNarrow-Regular.woff2'],
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['family' => 'PT Sans Narrow', 'weight' => 700, 'path' => __DIR__.'/../../public/fonts/PTSansNarrow-Bold.woff2'],
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['family' => 'Blogger Sans', 'weight' => 500, 'path' => __DIR__.'/../../public/fonts/Blogger Sans-Medium.woff2'],
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];
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$rules = [];
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foreach ($fontDefinitions as $fontDefinition) {
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$fontContent = @file_get_contents($fontDefinition['path']);
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if (false === $fontContent) {
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continue;
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}
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$rules[] = sprintf(
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'@font-face { font-family: "%s"; src: url("data:font/woff2;base64,%s") format("woff2"); font-weight: %d; font-style: normal; font-display: swap; }',
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$fontDefinition['family'],
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base64_encode($fontContent),
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$fontDefinition['weight'],
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);
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}
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return implode("\n", $rules);
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}
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/**
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* @param array<string, mixed> $questionResult
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*/
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private function buildChartDataUri(array $questionResult): ?string
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{
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$chart = $questionResult['chart'] ?? null;
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if (!is_array($chart)) {
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return null;
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}
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$svg = match ((string) ($chart['type'] ?? '')) {
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'pie' => $this->buildPieChartSvg($questionResult, $chart),
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'line' => $this->buildLineChartSvg($questionResult, $chart),
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default => null,
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};
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if (null === $svg) {
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return null;
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}
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return 'data:image/svg+xml;base64,'.base64_encode($svg);
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}
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/**
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* @param array<string, mixed> $questionResult
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* @param array<string, mixed> $chart
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*/
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private function buildPieChartSvg(array $questionResult, array $chart): ?string
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{
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$options = $questionResult['options'] ?? $questionResult['responseSummary'] ?? [];
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if (!is_array($options) || [] === $options) {
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return $this->buildEmptyChartSvg('Noch keine Daten');
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}
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$dataset = $chart['data']['datasets'][0] ?? null;
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$fillColors = is_array($dataset['backgroundColor'] ?? null) ? $dataset['backgroundColor'] : [];
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$borderColors = is_array($dataset['borderColor'] ?? null) ? $dataset['borderColor'] : [];
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$counts = array_map(static fn (array $option): int => (int) ($option['count'] ?? 0), $options);
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$total = array_sum($counts);
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if ($total <= 0) {
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return $this->buildEmptyChartSvg('Noch keine Daten');
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}
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$centerX = 140.0;
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$centerY = 140.0;
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$radius = 88.0;
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$startAngle = -90.0;
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$segments = [];
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foreach ($options as $index => $option) {
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$count = (int) ($option['count'] ?? 0);
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if ($count <= 0) {
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continue;
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}
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$sweepAngle = ($count / $total) * 360.0;
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$endAngle = $startAngle + $sweepAngle;
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$largeArcFlag = $sweepAngle > 180.0 ? 1 : 0;
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$startPoint = $this->polarToCartesian($centerX, $centerY, $radius, $startAngle);
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$endPoint = $this->polarToCartesian($centerX, $centerY, $radius, $endAngle);
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$fill = (string) ($fillColors[$index] ?? '#D3E4F1');
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$stroke = (string) ($borderColors[$index] ?? '#0064AD');
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$segments[] = sprintf(
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'<path d="M %.2f %.2f L %.2f %.2f A %.2f %.2f 0 %d 1 %.2f %.2f Z" fill="%s" stroke="%s" stroke-width="2" />',
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$centerX,
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$centerY,
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$startPoint['x'],
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$startPoint['y'],
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$radius,
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$radius,
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$largeArcFlag,
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$endPoint['x'],
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$endPoint['y'],
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$this->escapeXml($fill),
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$this->escapeXml($stroke),
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);
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$startAngle = $endAngle;
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}
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return sprintf(
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'<svg xmlns="http://www.w3.org/2000/svg" width="280" height="280" viewBox="0 0 280 280" role="img" aria-label="Kreisdiagramm"><rect width="280" height="280" rx="24" fill="#ffffff"/><circle cx="140" cy="140" r="108" fill="#f6f8fb"/><g>%s</g><circle cx="140" cy="140" r="26" fill="#ffffff"/><text x="140" y="146" text-anchor="middle" font-size="18" font-family="DejaVu Sans" fill="#222222">%d</text></svg>',
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implode('', $segments),
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$total,
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);
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}
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/**
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* @param array<string, mixed> $questionResult
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* @param array<string, mixed> $chart
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*/
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private function buildLineChartSvg(array $questionResult, array $chart): ?string
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{
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$distribution = $questionResult['distribution'] ?? [];
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if (!is_array($distribution) || [] === $distribution) {
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return $this->buildEmptyChartSvg('Noch keine Bewertungen');
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}
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$labels = array_map(static fn (array $row): string => (string) ($row['label'] ?? ''), $distribution);
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$values = array_map(static fn (array $row): int => (int) ($row['count'] ?? 0), $distribution);
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$maxValue = max(1, max($values));
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$width = 560.0;
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$height = 280.0;
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$paddingLeft = 58.0;
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$paddingRight = 22.0;
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$paddingTop = 24.0;
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$paddingBottom = 44.0;
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$plotWidth = $width - $paddingLeft - $paddingRight;
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$plotHeight = $height - $paddingTop - $paddingBottom;
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$steps = max(1, count($values) - 1);
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$dataset = is_array($chart['data']['datasets'][0] ?? null) ? $chart['data']['datasets'][0] : [];
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$lineColor = (string) ($dataset['borderColor'] ?? '#0064AD');
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$areaFill = (string) ($dataset['backgroundColor'] ?? 'rgba(236, 124, 50, 0.12)');
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$pointColors = is_array($chart['data']['datasets'][0]['pointBackgroundColor'] ?? null) ? $chart['data']['datasets'][0]['pointBackgroundColor'] : [];
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$polylinePoints = [];
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$areaPolylinePoints = [];
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$pointCircles = [];
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$xLabels = [];
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$yGrid = [];
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// Große Skalen (z. B. Alter 1–100): X-Beschriftung ausdünnen und die
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// Punkt-Marker verkleinern bzw. weglassen, damit das Diagramm lesbar bleibt.
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$pointCount = count($values);
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$labelStep = max(1, (int) ceil($pointCount / 12));
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$lastIndex = $pointCount - 1;
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$pointRadius = $pointCount > 40 ? 0.0 : ($pointCount > 20 ? 3.0 : 5.5);
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$yStep = max(1, (int) ceil($maxValue / 6));
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for ($tick = 0; $tick <= $maxValue; $tick += $yStep) {
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$ratio = $maxValue > 0 ? $tick / $maxValue : 0;
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$y = $paddingTop + $plotHeight - ($ratio * $plotHeight);
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$yGrid[] = sprintf('<line x1="%.2f" y1="%.2f" x2="%.2f" y2="%.2f" stroke="#d7dee8" stroke-width="1" />', $paddingLeft, $y, $width - $paddingRight, $y);
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$yGrid[] = sprintf('<text x="%.2f" y="%.2f" text-anchor="end" font-size="11" font-family="DejaVu Sans" fill="#555e68">%d</text>', $paddingLeft - 8, $y + 4, $tick);
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}
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foreach ($values as $index => $value) {
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$x = $paddingLeft + ($plotWidth * ($index / $steps));
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$y = $paddingTop + $plotHeight - (($value / $maxValue) * $plotHeight);
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$polylinePoints[] = sprintf('%.2f,%.2f', $x, $y);
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$areaPolylinePoints[] = sprintf('%.2f,%.2f', $x, $y);
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if ($pointRadius > 0.0) {
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$pointCircles[] = sprintf('<circle cx="%.2f" cy="%.2f" r="%.1f" fill="%s" stroke="#ffffff" stroke-width="2" />', $x, $y, $pointRadius, $this->escapeXml((string) ($pointColors[$index] ?? '#EC7C32')));
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}
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if (0 === $index % $labelStep || $index === $lastIndex) {
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$xLabels[] = sprintf('<text x="%.2f" y="%.2f" text-anchor="middle" font-size="11" font-family="DejaVu Sans" fill="#555e68">%s</text>', $x, $height - 16, $this->escapeXml($labels[$index]));
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}
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}
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$areaPoints = sprintf(
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'%.2f,%.2f %s %.2f,%.2f',
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$paddingLeft,
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$paddingTop + $plotHeight,
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implode(' ', $areaPolylinePoints),
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$width - $paddingRight,
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$paddingTop + $plotHeight,
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);
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return sprintf(
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'<svg xmlns="http://www.w3.org/2000/svg" width="560" height="280" viewBox="0 0 560 280" role="img" aria-label="Liniendiagramm"><rect width="560" height="280" rx="22" fill="#ffffff"/><rect x="1" y="1" width="558" height="278" rx="22" fill="none" stroke="#e3e7ee"/><g>%s</g><line x1="%.2f" y1="%.2f" x2="%.2f" y2="%.2f" stroke="#8a95a3" stroke-width="1.2"/><line x1="%.2f" y1="%.2f" x2="%.2f" y2="%.2f" stroke="#8a95a3" stroke-width="1.2"/><polygon fill="%s" stroke="none" points="%s"/><polyline fill="none" stroke="%s" stroke-width="3.5" stroke-linejoin="round" stroke-linecap="round" points="%s"/><g>%s</g><g>%s</g></svg>',
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implode('', $yGrid),
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$paddingLeft,
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$paddingTop + $plotHeight,
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$width - $paddingRight,
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$paddingTop + $plotHeight,
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$paddingLeft,
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$paddingTop,
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$paddingLeft,
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$paddingTop + $plotHeight,
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$this->escapeXml($areaFill),
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$areaPoints,
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$this->escapeXml($lineColor),
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implode(' ', $polylinePoints),
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implode('', $pointCircles),
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implode('', $xLabels),
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);
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}
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private function buildEmptyChartSvg(string $label): string
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{
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return sprintf(
|
||
'<svg xmlns="http://www.w3.org/2000/svg" width="560" height="220" viewBox="0 0 560 220" role="img" aria-label="Leeres Diagramm"><rect width="560" height="220" rx="22" fill="#f6f8fb"/><rect x="1" y="1" width="558" height="218" rx="22" fill="none" stroke="#e3e7ee"/><text x="280" y="114" text-anchor="middle" font-size="18" font-family="DejaVu Sans" fill="#555e68">%s</text></svg>',
|
||
$this->escapeXml($label),
|
||
);
|
||
}
|
||
|
||
/**
|
||
* @return array{x:float,y:float}
|
||
*/
|
||
private function polarToCartesian(float $centerX, float $centerY, float $radius, float $angleInDegrees): array
|
||
{
|
||
$angleInRadians = deg2rad($angleInDegrees);
|
||
|
||
return [
|
||
'x' => $centerX + ($radius * cos($angleInRadians)),
|
||
'y' => $centerY + ($radius * sin($angleInRadians)),
|
||
];
|
||
}
|
||
|
||
private function escapeXml(string $value): string
|
||
{
|
||
return htmlspecialchars($value, ENT_QUOTES | ENT_XML1, 'UTF-8');
|
||
}
|
||
|
||
private function buildFilename(string $title): string
|
||
{
|
||
$normalizedTitle = preg_replace('/\s+/', '_', trim($title)) ?: 'Umfrage';
|
||
$sanitizedTitle = preg_replace('/[^\pL\pN_-]+/u', '', $normalizedTitle) ?: 'Umfrage';
|
||
|
||
return sprintf('%s_Ergebnisse.pdf', trim($sanitizedTitle, '_-'));
|
||
}
|
||
} |