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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) 2024 (original work) Open Assessment Technologies SA; |
| 19 | */ |
| 20 | |
| 21 | declare(strict_types=1); |
| 22 | |
| 23 | namespace oat\taoQtiItem\model\Export\Qti3Package; |
| 24 | |
| 25 | use DOMDocument; |
| 26 | use DOMElement; |
| 27 | |
| 28 | class TransformationService |
| 29 | { |
| 30 | private Qti3XsdValidator $validator; |
| 31 | |
| 32 | public function __construct(Qti3XsdValidator $validator) |
| 33 | { |
| 34 | $this->validator = $validator; |
| 35 | } |
| 36 | |
| 37 | public function transformChildren(DOMElement $oldElement, DOMElement $newParent, DOMDocument $newDom): void |
| 38 | { |
| 39 | foreach ($oldElement->childNodes as $child) { |
| 40 | if ($child instanceof DOMElement) { |
| 41 | $newName = $this->createQtiElementName($child->nodeName); |
| 42 | |
| 43 | if (!$this->validator->isQtiElementName($newName)) { |
| 44 | $newName = $child->nodeName; |
| 45 | } |
| 46 | |
| 47 | $newElement = $newDom->createElement($newName); |
| 48 | |
| 49 | $this->transformAttributes($child, $newElement); |
| 50 | |
| 51 | if ($child->childNodes->length === 1 && $child->firstChild->nodeType === XML_TEXT_NODE) { |
| 52 | $newElement->textContent = $child->textContent; |
| 53 | } else { |
| 54 | $this->transformChildren($child, $newElement, $newDom); |
| 55 | } |
| 56 | |
| 57 | $newParent->appendChild($newElement); |
| 58 | } elseif ($child->nodeType === XML_TEXT_NODE && trim($child->nodeValue) !== '') { |
| 59 | $newParent->appendChild($newDom->createTextNode($child->nodeValue)); |
| 60 | } |
| 61 | } |
| 62 | } |
| 63 | |
| 64 | public function transformAttributes(DOMElement $sourceElement, DOMElement $targetElement): void |
| 65 | { |
| 66 | if (!$sourceElement->hasAttributes()) { |
| 67 | return; |
| 68 | } |
| 69 | |
| 70 | foreach ($sourceElement->attributes as $attribute) { |
| 71 | if ( |
| 72 | !str_starts_with($attribute->nodeName, 'xmlns') |
| 73 | && $attribute->nodeName !== 'xsi:schemaLocation' |
| 74 | ) { |
| 75 | $attrName = $this->camelToHyphen($attribute->nodeName); |
| 76 | if (!empty($attrName)) { |
| 77 | $targetElement->setAttribute($attrName, $attribute->value); |
| 78 | } |
| 79 | } |
| 80 | } |
| 81 | } |
| 82 | |
| 83 | public function createQtiElementName(string $nodeName): string |
| 84 | { |
| 85 | return sprintf('qti-%s', $this->camelToHyphen($nodeName)); |
| 86 | } |
| 87 | |
| 88 | private function camelToHyphen(string $string): string |
| 89 | { |
| 90 | $string = preg_replace('/([a-z])([A-Z])/', '$1-$2', $string); |
| 91 | $string = str_replace('_', '-', $string); |
| 92 | $string = strtolower($string); |
| 93 | return ltrim($string, '-'); |
| 94 | } |
| 95 | } |