Translator.php

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<?php
 
declare(strict_types=1);
 
namespace ILIAS\GlobalScreen\GUI\I18n;
 
use ILIAS\GlobalScreen\GUI\I18n\MultiLanguage\TranslationsRepository;
 
class Translator
{
    private bool $internal = false;
    private const LANG_PHP = 'lang.php';
 
    private MultiLanguage $multi_language;
 
    public function __construct(
        private \ilLanguage $lng,
        ?TranslationsRepository $translations_repository = null,
        string ...$module
    ) {
        foreach ($module as $m) {
            $this->lng->loadLanguageModule($m);
        }
        $this->multi_language = new MultiLanguage($translations_repository);
    }
 
    public function t(string $identifier, ?string $prefix = null, array $subsitutions = []): string
    {
        return $this->translate($identifier, $prefix, $subsitutions);
    }
 
    public function txt(string $identifier, array $subsitutions = []): string
    {
        return $this->translate($identifier, null, $subsitutions);
    }
 
    public function translate(string $identifier, ?string $prefix = null, array $subsitutions = []): string
    {
        $key = $prefix !== null ? $prefix . '_' . $identifier : $identifier;
 
        if ($subsitutions !== []) {
            return sprintf($this->internal($key, $this->lng->txt($key)), ...array_values($subsitutions));
        }
 
        return $this->internal($key, $this->lng->txt($key));
    }
 
    public function ml(): MultiLanguage
    {
        return $this->multi_language;
    }
 
    private function internal(string $key, string $translation): string
    {
        if (!$this->internal) {
            return $translation;
        }
 
        $file = __DIR__ . '/' . self::LANG_PHP;
        touch($file);
        $current = (array) ((@include $file) ?? []);
        $untranslated = ($translation === '-' . $key . '-');
 
        $differs = $untranslated
            || (
                ($current[$key] ?? null) !== null
                && ($current[$key] !== $translation)
            );
 
        if ($differs) {
            $current[$key] = $translation = $key;
            asort($current);
            file_put_contents($file, '<?php return ' . var_export($current, true) . ';');
        }
 
        return $translation;
    }
 
}