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| 1 | <?php |
| 2 | |
| 3 | /* |
| 4 | * This program is free software; you can redistribute it and/or |
| 5 | * modify it under the terms of the GNU General Public License |
| 6 | * as published by the Free Software Foundation; under version 2 |
| 7 | * of the License (non-upgradable). |
| 8 | * |
| 9 | * This program is distributed in the hope that it will be useful, |
| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 12 | * GNU General Public License for more details. |
| 13 | * |
| 14 | * You should have received a copy of the GNU General Public License |
| 15 | * along with this program; if not, write to the Free Software |
| 16 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
| 17 | * |
| 18 | * Copyright (c) 2025 (original work) Open Assessment Technologies SA |
| 19 | */ |
| 20 | |
| 21 | declare(strict_types=1); |
| 22 | |
| 23 | namespace oat\taoQtiTest\model\Infrastructure\Validation; |
| 24 | |
| 25 | use oat\taoQtiTest\models\classes\runner\QtiRunnerInvalidResponsesException; |
| 26 | use qtism\runtime\common\State; |
| 27 | |
| 28 | class ChoiceResponseValidationStrategy implements InteractionResponseValidationStrategy |
| 29 | { |
| 30 | private const QTI_CLASS = 'choiceInteraction'; |
| 31 | |
| 32 | public function isApplicable(array $itemData): bool |
| 33 | { |
| 34 | if (!isset($itemData['data']['body']['elements']) || !is_array($itemData['data']['body']['elements'])) { |
| 35 | return false; |
| 36 | } |
| 37 | |
| 38 | foreach ($itemData['data']['body']['elements'] as $element) { |
| 39 | if ($element['qtiClass'] === self::QTI_CLASS) { |
| 40 | return true; |
| 41 | } |
| 42 | } |
| 43 | |
| 44 | return false; |
| 45 | } |
| 46 | |
| 47 | public function validate(array $itemData, State $responses): void |
| 48 | { |
| 49 | foreach ($itemData['data']['body']['elements'] as $element) { |
| 50 | if ($element['qtiClass'] !== self::QTI_CLASS || !isset($element['choices'])) { |
| 51 | continue; |
| 52 | } |
| 53 | |
| 54 | $userChoiceIds = $this->getQtiIdentifiersForChoicesByResponseDeclarationId( |
| 55 | $responses, |
| 56 | $element['attributes']['responseIdentifier'] |
| 57 | ); |
| 58 | $validChoiceIds = []; |
| 59 | foreach ($element['choices'] as $choice) { |
| 60 | $validChoiceIds[] = $choice['identifier']; |
| 61 | } |
| 62 | |
| 63 | $diff = array_diff($userChoiceIds, $validChoiceIds); |
| 64 | if ($diff !== []) { |
| 65 | throw new QtiRunnerInvalidResponsesException(sprintf( |
| 66 | 'Invalid choice identifiers: [%s]', |
| 67 | implode(',', $diff) |
| 68 | )); |
| 69 | } |
| 70 | } |
| 71 | } |
| 72 | |
| 73 | private function getQtiIdentifiersForChoicesByResponseDeclarationId(State $responses, string $key): array |
| 74 | { |
| 75 | $result = []; |
| 76 | foreach ($responses->getVariable($key)->getValue() as $response) { |
| 77 | $result[] = (string) $response->getValue(); |
| 78 | } |
| 79 | |
| 80 | return $result; |
| 81 | } |
| 82 | } |