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| 1 | <?php |
| 2 | |
| 3 | namespace BO\Slim; |
| 4 | |
| 5 | use Psr\Http\Message\RequestInterface; |
| 6 | use Psr\Http\Message\ServerRequestInterface; |
| 7 | use Symfony\Bridge\Twig\Extension\TranslationExtension; |
| 8 | use Symfony\Component\Translation\Translator; |
| 9 | |
| 10 | class Language |
| 11 | { |
| 12 | public static array $supportedLanguages = array(); |
| 13 | |
| 14 | public string $current = ''; |
| 15 | |
| 16 | protected string $currentLocale = ''; |
| 17 | |
| 18 | protected string $default = ''; |
| 19 | |
| 20 | protected static ?Translator $translatorInstance = null; |
| 21 | |
| 22 | public function __construct(RequestInterface $request, array $supportedLanguages) |
| 23 | { |
| 24 | self::$supportedLanguages = $supportedLanguages; |
| 25 | $this->current = $this->getLanguageFromRequest($request); |
| 26 | $fallbackLocale = $this->getLocale($this->getDefault()); |
| 27 | $this->currentLocale = $this->getLocale($this->getCurrentLanguage()); |
| 28 | $this->setCurrentLocale(); |
| 29 | $defaultLang = $this->getDefault(); |
| 30 | |
| 31 | /** @psalm-suppress RedundantCondition Module App subclasses may set MULTILANGUAGE to false. */ |
| 32 | if ( |
| 33 | \App::MULTILANGUAGE |
| 34 | || (strlen($fallbackLocale) > 0 && strlen($this->currentLocale) > 0 && strlen($defaultLang) > 0) |
| 35 | ) { |
| 36 | if (null === self::$translatorInstance) { |
| 37 | self::$translatorInstance = (new LanguageTranslator( |
| 38 | $fallbackLocale, |
| 39 | $this->currentLocale, |
| 40 | $defaultLang |
| 41 | ))->getInstance(); |
| 42 | \BO\Slim\Bootstrap::addTwigExtension(new TranslationExtension(self::$translatorInstance)); |
| 43 | } else { |
| 44 | self::$translatorInstance->setLocale($this->currentLocale); |
| 45 | } |
| 46 | } |
| 47 | } |
| 48 | |
| 49 | /** @psalm-api */ |
| 50 | public function getDefaultLanguageName(): ?string |
| 51 | { |
| 52 | $default = \App::$supportedLanguages[$this->getDefault()]['name'] ?? null; |
| 53 | return $default; |
| 54 | } |
| 55 | |
| 56 | public function getCurrentLanguage(string $lang = ''): string |
| 57 | { |
| 58 | $current = (isset(self::$supportedLanguages[$this->current])) ? $this->current : $this->getDefault(); |
| 59 | return ($lang != '') ? $lang : $current; |
| 60 | } |
| 61 | |
| 62 | public function getLocale(string $locale = ''): string |
| 63 | { |
| 64 | $locale = ('' == $locale) ? $this->getDefault() : $locale; |
| 65 | if ( |
| 66 | isset(self::$supportedLanguages[$this->getCurrentLanguage($locale)]) && |
| 67 | isset(self::$supportedLanguages[$this->getCurrentLanguage($locale)]['locale']) |
| 68 | ) { |
| 69 | $locale = (string) self::$supportedLanguages[$this->getCurrentLanguage($locale)]['locale']; |
| 70 | } |
| 71 | return $locale; |
| 72 | } |
| 73 | |
| 74 | /** @psalm-api */ |
| 75 | public function getCurrentLocale(): string |
| 76 | { |
| 77 | return $this->currentLocale; |
| 78 | } |
| 79 | |
| 80 | public function setCurrentLocale(): void |
| 81 | { |
| 82 | if (class_exists("Locale")) { |
| 83 | \Locale::setDefault($this->currentLocale); |
| 84 | } |
| 85 | \setlocale(LC_ALL, $this->getLocaleList($this->currentLocale)); |
| 86 | } |
| 87 | |
| 88 | /** |
| 89 | * @return string[] |
| 90 | * |
| 91 | */ |
| 92 | protected function getLocaleList(string $locale): array |
| 93 | { |
| 94 | $localeList = []; |
| 95 | $localeList[] = $this->getCurrentLanguage(); |
| 96 | $localeList[] = $locale; |
| 97 | $suffixList = ['utf8', 'utf-8']; |
| 98 | foreach ($suffixList as $suffix) { |
| 99 | array_unshift($localeList, $locale . '.' . $suffix); |
| 100 | } |
| 101 | return $localeList; |
| 102 | } |
| 103 | |
| 104 | public function getDefault(): string |
| 105 | { |
| 106 | if ($this->default !== '') { |
| 107 | return $this->default; |
| 108 | } |
| 109 | foreach (self::$supportedLanguages as $lang_id => $lang_data) { |
| 110 | if (isset($lang_data['default']) && $lang_data['default']) { |
| 111 | $this->default = (string) $lang_id; |
| 112 | return $this->default; |
| 113 | } |
| 114 | } |
| 115 | $first = array_key_first(self::$supportedLanguages); |
| 116 | $this->default = $first !== null ? (string) $first : ''; |
| 117 | return $this->default; |
| 118 | } |
| 119 | |
| 120 | // Detect current language based on request URI or Parameter |
| 121 | protected function getLanguageFromRequest(RequestInterface $request): string |
| 122 | { |
| 123 | $language = $this->getLanguageFromUri($request); |
| 124 | |
| 125 | if ($request instanceof ServerRequestInterface) { |
| 126 | $route = $request->getAttribute('route'); |
| 127 | if ($route instanceof \Slim\Routing\Route) { |
| 128 | $lang = $route->getArgument('lang'); |
| 129 | if ($lang !== null && $lang !== '') { |
| 130 | $language = $lang; |
| 131 | } |
| 132 | } |
| 133 | } |
| 134 | |
| 135 | return $language; |
| 136 | } |
| 137 | |
| 138 | protected function getLanguageFromUri(RequestInterface $request): string |
| 139 | { |
| 140 | if ($request instanceof Request) { |
| 141 | $requestParamLang = $request->getParam('lang'); |
| 142 | return ($requestParamLang) ? (string) $requestParamLang : $this->getDefault(); |
| 143 | } |
| 144 | if ($request instanceof ServerRequestInterface) { |
| 145 | $query = $request->getQueryParams(); |
| 146 | return !empty($query['lang']) ? (string) $query['lang'] : $this->getDefault(); |
| 147 | } |
| 148 | return $this->getDefault(); |
| 149 | } |
| 150 | } |