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| 1 | <?php |
| 2 | |
| 3 | declare(strict_types=1); |
| 4 | |
| 5 | /** @license For full copyright and license information, please see the LICENSE.md file. */ |
| 6 | |
| 7 | namespace App\Core\Engine\Application\Transformer; |
| 8 | |
| 9 | defined('AMMONLY_APP') || exit('Direct script access is forbidden.'); |
| 10 | |
| 11 | use App\Core\Engine\Domain\Model\FieldMetadata; |
| 12 | |
| 13 | /** |
| 14 | * Event Recurrence UiType Transformer. |
| 15 | * |
| 16 | * Handles UiType: event_recurrence. |
| 17 | * Validates, trims, and normalizes RFC 5545 iCalendar recurrence rule (RRULE) strings. |
| 18 | * |
| 19 | * @package App\Core\Engine\Application\Transformer |
| 20 | */ |
| 21 | final class EventRecurrenceTransformer implements UiTypeTransformerInterface |
| 22 | { |
| 23 | /** Supported frequencies in RFC 5545. */ |
| 24 | public const array VALID_FREQUENCIES = ['DAILY', 'WEEKLY', 'MONTHLY', 'YEARLY']; |
| 25 | |
| 26 | /** {@inheritdoc} */ |
| 27 | public function supports(string $uitypeName): bool |
| 28 | { |
| 29 | return $uitypeName === 'event_recurrence'; |
| 30 | } |
| 31 | |
| 32 | /** {@inheritdoc} */ |
| 33 | public function transformRead(mixed $rawValue, FieldMetadata $field): string |
| 34 | { |
| 35 | if ($rawValue === null || $rawValue === '') { |
| 36 | return ''; |
| 37 | } |
| 38 | |
| 39 | return trim((string) $rawValue); |
| 40 | } |
| 41 | |
| 42 | /** {@inheritdoc} */ |
| 43 | public function transformWrite(mixed $inputValue, FieldMetadata $field): ?string |
| 44 | { |
| 45 | if ($inputValue === null || $inputValue === '') { |
| 46 | return null; |
| 47 | } |
| 48 | |
| 49 | $rule = trim((string) $inputValue); |
| 50 | $upper = strtoupper($rule); |
| 51 | if ($upper === '' || $upper === 'NONE' || !str_contains($upper, 'FREQ=')) { |
| 52 | return null; |
| 53 | } |
| 54 | |
| 55 | return $rule; |
| 56 | } |
| 57 | } |