LocaleService.php

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<?php

namespace Elgg\I18n;

use Elgg\Config;

class LocaleService {
    
    protected $config;
    
    protected $locale;
    
    public function __construct(Config $config) {
        $this->config = $config;
        
        $this->initializeElggLocale();
    }
    
    public function getLanguageCodes() {
        return array_keys($this->locale);
    }
    
    public function setLocaleForLanguage(string $language, array $locale = []) {
        $this->locale[$language] = $locale;
    }
    
    public function getLocaleForLanguage(string $language) {
        return isset($this->locale[$language]) ? $this->locale[$language] : [];
    }
    
    public function getLocale(int $category) {
        return (array) setlocale($category, 0);
    }
    
    public function setLocale(int $category, $locale) {
        $current = $this->getLocale($category);
        
        setlocale($category, $locale);
        
        return $current;
    }
    
    public function setLocaleFromLanguageKey(int $category, string $language = null) {
        if (!isset($language)) {
            $language = elgg_get_current_language();
        }
        
        $locale = [
            $language,
        ];
        $locale += $this->getLocaleForLanguage($language);
        
        return $this->setLocale($category, $locale);
    }
    
    private function initializeElggLocale() {
        $this->locale = [
            'aa' => [], // 'Afar'
            'ab' => [], // 'Abkhazian'
            'af' => [], // 'Afrikaans'
            'am' => [], // 'Amharic'
            'ar' => [], // 'Arabic'
            'as' => [], // 'Assamese'
            'ay' => [], // 'Aymara'
            'az' => [], // 'Azerbaijani'
            'ba' => [], // 'Bashkir'
            'be' => [], // 'Byelorussian'
            'bg' => [], // 'Bulgarian'
            'bh' => [], // 'Bihari'
            'bi' => [], // 'Bislama'
            'bn' => [], // 'Bengali; Bangla'
            'bo' => [], // 'Tibetan'
            'br' => [], // 'Breton'
            'ca' => [], // 'Catalan'
            'cmn' => [], // 'Mandarin Chinese' // ISO 639-3
            'co' => [], // 'Corsican'
            'cs' => [], // 'Czech'
            'cy' => [], // 'Welsh'
            'da' => [], // 'Danish'
            'de' => [], // 'German'
            'dz' => [], // 'Bhutani'
            'el' => [], // 'Greek'
            'en' => [], // 'English'
            'eo' => [], // 'Esperanto'
            'es' => [], // 'Spanish'
            'et' => [], // 'Estonian'
            'eu' => [], // 'Basque'
            'eu_es' => [], // 'Basque (Spain)'
            'fa' => [], // 'Persian'
            'fi' => [], // 'Finnish'
            'fj' => [], // 'Fiji'
            'fo' => [], // 'Faeroese'
            'fr' => [], // 'French'
            'fy' => [], // 'Frisian'
            'ga' => [], // 'Irish'
            'gd' => [], // 'Scots / Gaelic'
            'gl' => [], // 'Galician'
            'gn' => [], // 'Guarani'
            'gu' => [], // 'Gujarati'
            'he' => [], // 'Hebrew'
            'ha' => [], // 'Hausa'
            'hi' => [], // 'Hindi'
            'hr' => [], // 'Croatian'
            'hu' => [], // 'Hungarian'
            'hy' => [], // 'Armenian'
            'ia' => [], // 'Interlingua'
            'id' => [], // 'Indonesian'
            'ie' => [], // 'Interlingue'
            'ik' => [], // 'Inupiak'
            'is' => [], // 'Icelandic'
            'it' => [], // 'Italian'
            'iu' => [], // 'Inuktitut'
            'iw' => [], // 'Hebrew (obsolete)'
            'ja' => [], // 'Japanese'
            'ji' => [], // 'Yiddish (obsolete)'
            'jw' => [], // 'Javanese'
            'ka' => [], // 'Georgian'
            'kk' => [], // 'Kazakh'
            'kl' => [], // 'Greenlandic'
            'km' => [], // 'Cambodian'
            'kn' => [], // 'Kannada'
            'ko' => [], // 'Korean'
            'ks' => [], // 'Kashmiri'
            'ku' => [], // 'Kurdish'
            'ky' => [], // 'Kirghiz'
            'la' => [], // 'Latin'
            'ln' => [], // 'Lingala'
            'lo' => [], // 'Laothian'
            'lt' => [], // 'Lithuanian'
            'lv' => [], // 'Latvian/Lettish'
            'mg' => [], // 'Malagasy'
            'mi' => [], // 'Maori'
            'mk' => [], // 'Macedonian'
            'ml' => [], // 'Malayalam'
            'mn' => [], // 'Mongolian'
            'mo' => [], // 'Moldavian'
            'mr' => [], // 'Marathi'
            'ms' => [], // 'Malay'
            'mt' => [], // 'Maltese'
            'my' => [], // 'Burmese'
            'na' => [], // 'Nauru'
            'ne' => [], // 'Nepali'
            'nl' => [], // 'Dutch'
            'no' => [], // 'Norwegian'
            'oc' => [], // 'Occitan'
            'om' => [], // '(Afan) Oromo'
            'or' => [], // 'Oriya'
            'pa' => [], // 'Punjabi'
            'pl' => [], // 'Polish'
            'ps' => [], // 'Pashto / Pushto'
            'pt' => [], // 'Portuguese'
            'pt_br' => [], // 'Portuguese (Brazil)'
            'qu' => [], // 'Quechua'
            'rm' => [], // 'Rhaeto-Romance'
            'rn' => [], // 'Kirundi'
            'ro' => [], // 'Romanian'
            'ro_ro' => [], // 'Romanian (Romania)'
            'ru' => [], // 'Russian'
            'rw' => [], // 'Kinyarwanda'
            'sa' => [], // 'Sanskrit'
            'sd' => [], // 'Sindhi'
            'sg' => [], // 'Sangro'
            'sh' => [], // 'Serbo-Croatian'
            'si' => [], // 'Singhalese'
            'sk' => [], // 'Slovak'
            'sl' => [], // 'Slovenian'
            'sm' => [], // 'Samoan'
            'sn' => [], // 'Shona'
            'so' => [], // 'Somali'
            'sq' => [], // 'Albanian'
            'sr' => [], // 'Serbian'
            'sr_latin' => [], // 'Serbian (Latin)'
            'ss' => [], // 'Siswati'
            'st' => [], // 'Sesotho'
            'su' => [], // 'Sundanese'
            'sv' => [], // 'Swedish'
            'sw' => [], // 'Swahili'
            'ta' => [], // 'Tamil'
            'te' => [], // 'Tegulu'
            'tg' => [], // 'Tajik'
            'th' => [], // 'Thai'
            'ti' => [], // 'Tigrinya'
            'tk' => [], // 'Turkmen'
            'tl' => [], // 'Tagalog'
            'tn' => [], // 'Setswana'
            'to' => [], // 'Tonga'
            'tr' => [], // 'Turkish'
            'ts' => [], // 'Tsonga'
            'tt' => [], // 'Tatar'
            'tw' => [], // 'Twi'
            'ug' => [], // 'Uigur'
            'uk' => [], // 'Ukrainian'
            'ur' => [], // 'Urdu'
            'uz' => [], // 'Uzbek'
            'vi' => [], // 'Vietnamese'
            'vo' => [], // 'Volapuk'
            'wo' => [], // 'Wolof'
            'xh' => [], // 'Xhosa'
            'yi' => [], // 'Yiddish'
            'yo' => [], // 'Yoruba'
            'za' => [], // 'Zuang'
            'zh' => [], // 'Chinese'
            'zh_hans' => [], // 'Chinese Simplified'
            'zu' => [], // 'Zulu'
        ];
        
        // merge $CONFIG mapping into the array
        // this can be set in settings.php
        if (is_array($this->config->language_to_locale_mapping)) {
            $this->locale = array_merge($this->locale, $this->config->language_to_locale_mapping);
        }
    }
}