117 lines
3.4 KiB
PHP
117 lines
3.4 KiB
PHP
<?php
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namespace App;
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use App\Http\ServerRequest;
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use Gettext\Translator;
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use Psr\Http\Message\ServerRequestInterface;
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class Locale
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{
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public const DEFAULT_LOCALE = 'en_US.UTF-8';
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protected Environment $environment;
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protected ?ServerRequestInterface $request = null;
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protected string $locale = self::DEFAULT_LOCALE;
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public function __construct(
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Environment $environment,
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?ServerRequestInterface $request = null
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) {
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$this->environment = $environment;
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$this->request = $request;
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$this->locale = $this->determineLocale();
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}
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protected function determineLocale(): string
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{
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$possibleLocales = [];
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// Attempt to load from request if provided.
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if ($this->request instanceof ServerRequestInterface) {
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// Prefer user-based profile locale.
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$user = $this->request->getAttribute(ServerRequest::ATTR_USER);
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if (null !== $user && !empty($user->getLocale()) && 'default' !== $user->getLocale()) {
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$possibleLocales[] = $user->getLocale();
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}
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$server_params = $this->request->getServerParams();
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$browser_locale = \Locale::acceptFromHttp($server_params['HTTP_ACCEPT_LANGUAGE'] ?? null);
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if (!empty($browser_locale)) {
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if (2 === strlen($browser_locale)) {
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$browser_locale = strtolower($browser_locale) . '_' . strtoupper($browser_locale);
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}
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$possibleLocales[] = substr($browser_locale, 0, 5) . '.UTF-8';
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}
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}
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// Attempt to load from environment variable.
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$envLocale = $this->environment->getLang();
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if (!empty($envLocale)) {
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$possibleLocales[] = substr($envLocale, 0, 5) . '.UTF-8';
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}
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return $this->getValidLocale($possibleLocales);
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}
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protected function getValidLocale(array $possibleLocales): string
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{
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$supportedLocales = $this->environment->getSupportedLocales();
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foreach ($possibleLocales as $locale) {
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// Prefer exact match.
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if (isset($supportedLocales[$locale])) {
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return $locale;
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}
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// Use approximate match if available.
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foreach ($supportedLocales as $langCode => $langName) {
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if (strpos($locale, substr($langCode, 0, 2)) === 0) {
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return $langCode;
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}
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}
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}
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return self::DEFAULT_LOCALE;
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}
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public function getLocale(): string
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{
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return $this->locale;
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}
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/**
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* @return string A shortened locale (minus .UTF-8) for use in Vue.
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*/
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public function getVueLocale(): string
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{
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return json_encode(substr($this->locale, 0, 5), JSON_THROW_ON_ERROR);
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}
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public function setLocale(string $newLocale = self::DEFAULT_LOCALE): void
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{
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$this->locale = $newLocale;
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}
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public function register(): void
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{
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$translator = new Translator();
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$localeBase = $this->environment->getBaseDirectory() . '/resources/locale/compiled';
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$localePath = $localeBase . '/' . $this->locale . '.php';
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if (file_exists($localePath)) {
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$translator->loadTranslations($localePath);
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}
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$translator->register();
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// Register translation superglobal functions
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setlocale(LC_ALL, $this->locale);
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}
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}
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