feat: add Backend mit allen aktuellen features + Demo Daten
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Robert Wartenberg committed
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<?php
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declare(strict_types=1);
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function bookingDatabase(): PDO
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{
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$url = getenv('DATABASE_URL');
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$parts = is_string($url) ? parse_url($url) : false;
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if (!is_array($parts) || ($parts['scheme'] ?? '') !== 'mysql' || !isset($parts['host'], $parts['path'], $parts['user'])) {
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throw new RuntimeException('DATABASE_URL is not configured correctly.');
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}
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$dsn = sprintf('mysql:host=%s;port=%d;dbname=%s;charset=utf8mb4', $parts['host'], (int) ($parts['port'] ?? 3306), ltrim($parts['path'], '/'));
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return new PDO($dsn, rawurldecode($parts['user']), rawurldecode($parts['pass'] ?? ''), [PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION, PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC, PDO::ATTR_EMULATE_PREPARES => false]);
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}
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function bookingBaseUrl(): string
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{
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$configured = getenv('BOOKING_BASE_URL');
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if (is_string($configured) && $configured !== '') {
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return rtrim($configured, '/');
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}
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$scheme = (!empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] !== 'off') ? 'https' : 'http';
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return $scheme.'://'.($_SERVER['HTTP_HOST'] ?? 'localhost');
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}
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function bookingUuid(): string
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{
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$hex = bin2hex(random_bytes(16));
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return sprintf('%s-%s-%s-%s-%s', substr($hex, 0, 8), substr($hex, 8, 4), substr($hex, 12, 4), substr($hex, 16, 4), substr($hex, 20));
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}
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function bookingProjectIsValid(string $project): bool
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{
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return in_array($project, ['perspektivwerk', 'produktionsschule'], true);
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}
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function bookingProjectTitle(string $project): string
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{
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return $project === 'produktionsschule' ? 'Produktionsschule' : 'PerspektivWerk';
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}
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function bookingQueueMail(PDO $database, string $registrationId, string $kind, string $email, string $subject, string $body): void
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{
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$statement = $database->prepare('INSERT IGNORE INTO sufw_booking_outbox (registration_id, kind, recipient_email, subject, body) VALUES (:registrationId, :kind, :email, :subject, :body)');
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$statement->execute(compact('registrationId', 'kind', 'email', 'subject', 'body'));
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}
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function bookingNormaliseEvent(array $event): array
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{
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$event['capacity'] = (int) $event['capacity'];
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$event['confirmedCount'] = (int) $event['confirmedCount'];
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$event['availableCapacity'] = max(0, $event['capacity'] - $event['confirmedCount']);
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$event['status'] = $event['availableCapacity'] > 0 ? 'available' : 'full';
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$event['introductionRequired'] = (bool) $event['introductionRequired'];
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unset($event['confirmedCount']);
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return $event;
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}
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function bookingListEvents(PDO $database, string $project, string $from, string $to): array
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{
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$statement = $database->prepare(<<<'SQL'
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SELECT e.id, e.project, e.title, e.starts_at AS startsAt, e.ends_at AS endsAt, e.capacity,
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e.format, e.introduction_required AS introductionRequired, e.contact_name AS contactName,
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COUNT(r.id) AS confirmedCount
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FROM sufw_booking_events e
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LEFT JOIN sufw_booking_registrations r ON r.event_id = e.id AND r.status = 'confirmed'
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WHERE e.project = :project AND e.is_active = 1 AND e.starts_at < :toDate AND e.ends_at >= :fromDate
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GROUP BY e.id ORDER BY e.starts_at, e.title
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SQL);
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$statement->execute(['project' => $project, 'fromDate' => "$from 00:00:00", 'toDate' => "$to 00:00:00"]);
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return array_map('bookingNormaliseEvent', $statement->fetchAll());
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}
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function bookingCreateRegistration(PDO $database, array $payload): array
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{
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$project = (string) ($payload['project'] ?? '');
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$eventId = (string) ($payload['eventId'] ?? '');
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$name = trim((string) ($payload['name'] ?? ''));
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$email = mb_strtolower(trim((string) ($payload['email'] ?? '')));
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$phone = trim((string) ($payload['phone'] ?? ''));
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$privacyAccepted = ($payload['privacyAccepted'] ?? false) === true;
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$introductionAttended = ($payload['introductionAttended'] ?? false) === true;
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$introductionDate = trim((string) ($payload['introductionDate'] ?? ''));
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if (!bookingProjectIsValid($project) || !preg_match('/^[a-f0-9-]{36}$/', $eventId) || $name === '' || mb_strlen($name) > 160 || !filter_var($email, FILTER_VALIDATE_EMAIL) || mb_strlen($email) > 254 || !preg_match('/^[0-9+()\-\/\s]{6,64}$/', $phone) || !$privacyAccepted) {
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throw new InvalidArgumentException('Bitte prüfen Sie Ihre Pflichtangaben.');
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}
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if ($introductionDate !== '' && (!preg_match('/^\d{4}-\d{2}-\d{2}$/', $introductionDate) || !DateTimeImmutable::createFromFormat('!Y-m-d', $introductionDate))) {
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throw new InvalidArgumentException('Bitte prüfen Sie das Datum der Einführungsveranstaltung.');
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}
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$database->beginTransaction();
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try {
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$eventStatement = $database->prepare('SELECT * FROM sufw_booking_events WHERE id = :id AND project = :project AND is_active = 1 FOR UPDATE');
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$eventStatement->execute(['id' => $eventId, 'project' => $project]);
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$event = $eventStatement->fetch();
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if (!$event) throw new OutOfBoundsException('Dieser Termin ist nicht mehr verfügbar.');
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if ((bool) $event['introduction_required'] && (!$introductionAttended || $introductionDate === '')) {
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throw new InvalidArgumentException('Bitte bestätigen Sie die Einführungsveranstaltung und geben Sie das Datum an.');
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}
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$confirmed = $database->prepare("SELECT COUNT(*) FROM sufw_booking_registrations WHERE event_id = :eventId AND status = 'confirmed'");
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$confirmed->execute(['eventId' => $eventId]);
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if ((int) $confirmed->fetchColumn() >= (int) $event['capacity']) throw new RuntimeException('Dieser Termin ist inzwischen ausgebucht.');
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$duplicate = $database->prepare("SELECT id FROM sufw_booking_registrations WHERE event_id = :eventId AND email = :email AND name = :name AND status IN ('pending_confirmation', 'confirmed') LIMIT 1");
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$duplicate->execute(['eventId' => $eventId, 'email' => $email, 'name' => $name]);
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if ($duplicate->fetch()) throw new LogicException('Für diese Person liegt bereits eine Anmeldung für diesen Termin vor.');
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$registrationId = bookingUuid();
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$token = bin2hex(random_bytes(32));
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$insert = $database->prepare(<<<'SQL'
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INSERT INTO sufw_booking_registrations
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(id, event_id, status, name, email, phone, privacy_accepted_at, confirmation_token_hash, confirmation_expires_at, introduction_attended, introduction_date)
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VALUES
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(:id, :eventId, 'pending_confirmation', :name, :email, :phone, UTC_TIMESTAMP(), :tokenHash, DATE_ADD(UTC_TIMESTAMP(), INTERVAL 30 MINUTE), :introductionAttended, :introductionDate)
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SQL);
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$insert->execute(['id' => $registrationId, 'eventId' => $eventId, 'name' => $name, 'email' => $email, 'phone' => $phone, 'tokenHash' => hash('sha256', $token), 'introductionAttended' => $introductionAttended ? 1 : 0, 'introductionDate' => $introductionAttended ? $introductionDate : null]);
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$link = bookingBaseUrl().'/booking/confirm.php?token='.rawurlencode($token);
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$subject = 'Bitte bestätigen Sie Ihre Terminanfrage';
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$body = "Guten Tag $name,\n\nbitte bestätigen Sie Ihre Anfrage für \"{$event['title']}\" am {$event['starts_at']} innerhalb von 30 Minuten:\n$link\n\nKontakt für Rückfragen: {$event['contact_name']} ({$event['contact_email']}).";
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bookingQueueMail($database, $registrationId, 'confirmation_request', $email, $subject, $body);
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$database->commit();
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return ['registrationId' => $registrationId, 'expiresAt' => gmdate('c', time() + 1800)];
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} catch (Throwable $exception) {
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if ($database->inTransaction()) $database->rollBack();
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throw $exception;
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}
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}
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function bookingConfirmRegistration(PDO $database, string $token): array
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{
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if (!preg_match('/^[a-f0-9]{64}$/', $token)) throw new InvalidArgumentException('Der Bestätigungslink ist ungültig.');
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$database->beginTransaction();
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try {
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$statement = $database->prepare(<<<'SQL'
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SELECT r.*, e.title, e.project, e.starts_at, e.ends_at, e.capacity, e.contact_name, e.contact_email
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FROM sufw_booking_registrations r JOIN sufw_booking_events e ON e.id = r.event_id
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WHERE r.confirmation_token_hash = :tokenHash FOR UPDATE
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SQL);
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$statement->execute(['tokenHash' => hash('sha256', $token)]);
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$registration = $statement->fetch();
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if (!$registration || $registration['status'] !== 'pending_confirmation') throw new OutOfBoundsException('Dieser Bestätigungslink ist nicht mehr gültig.');
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if (strtotime($registration['confirmation_expires_at'].' UTC') < time()) {
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$database->prepare("UPDATE sufw_booking_registrations SET status = 'expired' WHERE id = :id")->execute(['id' => $registration['id']]);
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$database->commit();
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throw new OutOfBoundsException('Die Bestätigungsfrist ist abgelaufen. Bitte fragen Sie den Termin erneut an.');
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}
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$count = $database->prepare("SELECT COUNT(*) FROM sufw_booking_registrations WHERE event_id = :eventId AND status = 'confirmed'");
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$count->execute(['eventId' => $registration['event_id']]);
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if ((int) $count->fetchColumn() >= (int) $registration['capacity']) throw new RuntimeException('Der Termin wurde inzwischen vergeben. Bitte wählen Sie einen anderen Termin.');
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$database->prepare("UPDATE sufw_booking_registrations SET status = 'confirmed', confirmed_at = UTC_TIMESTAMP(), confirmation_token_hash = NULL WHERE id = :id")->execute(['id' => $registration['id']]);
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$history = $database->prepare(<<<'SQL'
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SELECT e.title, e.starts_at FROM sufw_booking_registrations r JOIN sufw_booking_events e ON e.id = r.event_id
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WHERE r.email = :email AND r.name = :name AND r.status = 'confirmed' ORDER BY e.starts_at
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SQL);
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$history->execute(['email' => $registration['email'], 'name' => $registration['name']]);
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$appointments = implode("\n", array_map(static fn (array $row): string => "- {$row['title']} am {$row['starts_at']}", $history->fetchAll()));
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$body = "Guten Tag {$registration['name']},\n\nIhr Termin ist bestätigt:\n{$registration['title']} am {$registration['starts_at']} bis {$registration['ends_at']}.\n\nIhre weiteren bestätigten Termine:\n$appointments\n\nBei Stornierungswunsch wenden Sie sich an {$registration['contact_name']} ({$registration['contact_email']}).";
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bookingQueueMail($database, $registration['id'], 'confirmation', $registration['email'], 'Ihr Termin ist bestätigt', $body);
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$database->commit();
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return $registration;
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} catch (Throwable $exception) {
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if ($database->inTransaction()) $database->rollBack();
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throw $exception;
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}
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}
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function bookingRunJobs(PDO $database): array
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{
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$expired = $database->exec("UPDATE sufw_booking_registrations SET status = 'expired' WHERE status = 'pending_confirmation' AND confirmation_expires_at < UTC_TIMESTAMP()");
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$reminders = $database->query(<<<'SQL'
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SELECT r.id, r.email, r.name, e.title, e.starts_at, e.contact_name, e.contact_email
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FROM sufw_booking_registrations r JOIN sufw_booking_events e ON e.id = r.event_id
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WHERE r.status = 'confirmed' AND DATE(e.starts_at) = DATE_ADD(UTC_DATE(), INTERVAL 2 DAY)
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SQL)->fetchAll();
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foreach ($reminders as $reminder) {
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$body = "Guten Tag {$reminder['name']},\n\ndies ist die Erinnerung an Ihren Termin \"{$reminder['title']}\" am {$reminder['starts_at']}.\n\nKontakt: {$reminder['contact_name']} ({$reminder['contact_email']}).";
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bookingQueueMail($database, $reminder['id'], 'reminder', $reminder['email'], 'Erinnerung an Ihren Termin', $body);
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}
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return ['expired' => $expired, 'remindersConsidered' => count($reminders)];
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}
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function bookingIcsEscape(string $value): string
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{
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return str_replace(["\\", ";", ",", "\n"], ["\\\\", "\\;", "\\,", "\\n"], $value);
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}
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