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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\Translation; |
| 8 | |
| 9 | defined('AMMONLY_APP') || exit('Direct script access is forbidden.'); |
| 10 | |
| 11 | use Twig\Extension\AbstractExtension; |
| 12 | use Twig\Extension\GlobalsInterface; |
| 13 | use Twig\TwigFilter; |
| 14 | use Twig\TwigFunction; |
| 15 | use Yiisoft\Translator\TranslatorInterface; |
| 16 | |
| 17 | /** |
| 18 | * Twig Translation Extension. |
| 19 | * |
| 20 | * Exposes |trans filter, t() function, and locale globals in Twig templates. |
| 21 | * |
| 22 | * @package App\Core\Translation |
| 23 | */ |
| 24 | final class TwigTranslationExtension extends AbstractExtension implements GlobalsInterface |
| 25 | { |
| 26 | /** |
| 27 | * TwigTranslationExtension constructor. |
| 28 | * |
| 29 | * @param TranslatorInterface $translator Yii3 translator service. |
| 30 | * @param LocaleContext $localeContext Locale context manager. |
| 31 | */ |
| 32 | public function __construct( |
| 33 | private readonly TranslatorInterface $translator, |
| 34 | private readonly LocaleContextInterface $localeContext |
| 35 | ) { |
| 36 | } |
| 37 | |
| 38 | /** |
| 39 | * {@inheritdoc} |
| 40 | */ |
| 41 | public function getFilters(): array |
| 42 | { |
| 43 | return [ |
| 44 | new TwigFilter('trans', [$this, 'translateMessage']), |
| 45 | new TwigFilter('translate', [$this, 'translateMessage']), |
| 46 | new TwigFilter('json_decode', [$this, 'jsonDecodeFilter']), |
| 47 | ]; |
| 48 | } |
| 49 | |
| 50 | /** |
| 51 | * {@inheritdoc} |
| 52 | */ |
| 53 | public function getFunctions(): array |
| 54 | { |
| 55 | return [ |
| 56 | new TwigFunction('t', [$this, 'translateFunction']), |
| 57 | ]; |
| 58 | } |
| 59 | |
| 60 | /** |
| 61 | * {@inheritdoc} |
| 62 | */ |
| 63 | public function getGlobals(): array |
| 64 | { |
| 65 | return [ |
| 66 | 'current_locale' => $this->localeContext->getLocale(), |
| 67 | 'available_languages' => $this->localeContext->getActiveLanguages(), |
| 68 | ]; |
| 69 | } |
| 70 | |
| 71 | /** |
| 72 | * Translates a message using Twig filter syntax. |
| 73 | * |
| 74 | * @param string|null $message Message key or text. |
| 75 | * @param string $category Translation category. |
| 76 | * @param array<string, mixed> $parameters Placeholder parameters. |
| 77 | * @return string|null Translated string or null if machine key is untranslated. |
| 78 | */ |
| 79 | public function translateMessage(?string $message, string $category = 'app', array $parameters = []): ?string |
| 80 | { |
| 81 | if ($message === null || $message === '') { |
| 82 | return ''; |
| 83 | } |
| 84 | |
| 85 | $locale = $this->localeContext->getLocale(); |
| 86 | $translated = $this->translator->translate($message, $parameters, $category, $locale); |
| 87 | |
| 88 | if ($this->isUntranslatedMachineKey($translated, $message)) { |
| 89 | return null; |
| 90 | } |
| 91 | |
| 92 | return $translated; |
| 93 | } |
| 94 | |
| 95 | /** |
| 96 | * Translates a message using Twig function syntax. |
| 97 | * |
| 98 | * @param string $category Translation category. |
| 99 | * @param string $message Message key or text. |
| 100 | * @param array<string, mixed> $parameters Placeholder parameters. |
| 101 | * @return string|null Translated string or null if machine key is untranslated. |
| 102 | */ |
| 103 | public function translateFunction(string $category, string $message, array $parameters = []): ?string |
| 104 | { |
| 105 | $locale = $this->localeContext->getLocale(); |
| 106 | $translated = $this->translator->translate($message, $parameters, $category, $locale); |
| 107 | |
| 108 | if ($this->isUntranslatedMachineKey($translated, $message)) { |
| 109 | return null; |
| 110 | } |
| 111 | |
| 112 | return $translated; |
| 113 | } |
| 114 | |
| 115 | /** @var list<string> Common single-word machine action keys that should fall back to default when untranslated. */ |
| 116 | private const array COMMON_MACHINE_WORDS = [ |
| 117 | 'close', 'save', 'cancel', 'edit', 'delete', 'back', 'create', 'update', |
| 118 | 'search', 'filter', 'loading', 'confirm', 'actions', 'remove', 'add', |
| 119 | 'all', 'mine', 'pinned', 'verified', 'verify', 'reply', 'unread', 'read', |
| 120 | 'send', 'favorite', 'details', 'view', 'copy', 'clear', 'download', 'upload', |
| 121 | ]; |
| 122 | |
| 123 | /** |
| 124 | * Determines whether a message returned as-is represents an untranslated machine key. |
| 125 | * |
| 126 | * @param string $translated Translated string from translator. |
| 127 | * @param string $message Original message ID or string. |
| 128 | * @return bool True if the message is an untranslated machine identifier. |
| 129 | */ |
| 130 | private function isUntranslatedMachineKey(string $translated, string $message): bool |
| 131 | { |
| 132 | if ($translated !== $message || str_contains($message, ' ')) { |
| 133 | return false; |
| 134 | } |
| 135 | |
| 136 | $isMachineFormat = (bool) preg_match('/^[a-z0-9_.-]+$/i', $message); |
| 137 | if (!$isMachineFormat) { |
| 138 | return false; |
| 139 | } |
| 140 | |
| 141 | return str_contains($message, '.') |
| 142 | || str_contains($message, '_') |
| 143 | || in_array(strtolower($message), self::COMMON_MACHINE_WORDS, true); |
| 144 | } |
| 145 | |
| 146 | /** |
| 147 | * Decodes a JSON string into an array or object. |
| 148 | * |
| 149 | * @param mixed $value JSON string or value. |
| 150 | * @param bool $assoc Return associative array. |
| 151 | * @return mixed Decoded array or value. |
| 152 | */ |
| 153 | public function jsonDecodeFilter(mixed $value, bool $assoc = true): mixed |
| 154 | { |
| 155 | if (is_array($value)) { |
| 156 | return $value; |
| 157 | } |
| 158 | if (!is_string($value) || trim($value) === '') { |
| 159 | return []; |
| 160 | } |
| 161 | $decoded = json_decode($value, $assoc); |
| 162 | return $decoded !== null ? $decoded : []; |
| 163 | } |
| 164 | } |