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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) 2021 (original work) Open Assessment Technologies SA; |
19 | */ |
20 | |
21 | declare(strict_types=1); |
22 | |
23 | namespace oat\taoMediaManager\model\sharedStimulus\css\service; |
24 | |
25 | use Exception; |
26 | use oat\oatbox\filesystem\FilesystemException; |
27 | use oat\oatbox\service\ConfigurableService; |
28 | use oat\taoMediaManager\model\sharedStimulus\css\dto\SaveStylesheetClasses; |
29 | use oat\taoMediaManager\model\sharedStimulus\css\repository\StylesheetRepository; |
30 | |
31 | class SaveStylesheetClassesService extends ConfigurableService |
32 | { |
33 | public const STYLESHEET_WARNING_HEADER = " /* Do not edit */" . "\n"; |
34 | |
35 | /** @var StylesheetRepository */ |
36 | private $stylesheetRepository; |
37 | |
38 | public function save(SaveStylesheetClasses $saveStylesheetClassesDTO): void |
39 | { |
40 | $path = $this->getStylesheetRepository()->getPath($saveStylesheetClassesDTO->getUri()); |
41 | |
42 | if ($path === '.') { |
43 | throw new Exception('Shared stimulus stored as single file'); |
44 | } |
45 | |
46 | $cssClassesArray = $saveStylesheetClassesDTO->getCssClassesArray(); |
47 | |
48 | if (empty($cssClassesArray)) { |
49 | $this->removeStoredStylesheet($path . DIRECTORY_SEPARATOR . $saveStylesheetClassesDTO->getStylesheetUri()); |
50 | |
51 | return; |
52 | } |
53 | |
54 | $content = $this->getCssContentFromArray($cssClassesArray); |
55 | $this->getStylesheetRepository()->write( |
56 | $path . DIRECTORY_SEPARATOR . $saveStylesheetClassesDTO->getStylesheetUri(), |
57 | $content |
58 | ); |
59 | } |
60 | |
61 | private function removeStoredStylesheet(string $path): void |
62 | { |
63 | try { |
64 | $this->getStylesheetRepository()->delete($path); |
65 | } catch (FilesystemException $exception) { |
66 | $this->logDebug(sprintf('Stylesheet %s to delete was not found when trying to clear styles', $path)); |
67 | } |
68 | } |
69 | |
70 | private function getCssContentFromArray(array $array): string |
71 | { |
72 | // Todo clarify if can we use taoQtiItem/helpers/CssHelper.php here? For now duplicating the code |
73 | $css = self::STYLESHEET_WARNING_HEADER; |
74 | |
75 | // rebuild CSS |
76 | foreach ($array as $key1 => $value1) { |
77 | $css .= $key1 . '{'; |
78 | |
79 | foreach ($value1 as $key2 => $value2) { |
80 | // in the case that the code is embedded in a media query |
81 | if (is_array($value2)) { |
82 | foreach ($value2 as $value3) { |
83 | $css .= $key2 . '{'; |
84 | foreach ($value3 as $mProp) { |
85 | $css .= $mProp . ':' . $value3 . ';'; |
86 | } |
87 | $css .= '}'; |
88 | } |
89 | } else { // regular selectors |
90 | $css .= $key2 . ':' . $value2 . ';'; |
91 | } |
92 | } |
93 | $css .= "}\n"; |
94 | } |
95 | return $css; |
96 | } |
97 | |
98 | private function getStylesheetRepository(): StylesheetRepository |
99 | { |
100 | if (!isset($this->stylesheetRepository)) { |
101 | $this->stylesheetRepository = $this->getServiceLocator()->get(StylesheetRepository::class); |
102 | } |
103 | |
104 | return $this->stylesheetRepository; |
105 | } |
106 | } |