stackpress/esm/language/Language.js

Incept is a content management framework.

export default class Language {
    static _key = 'locale';
    static _languages = {};
    static get locales() {
        return Object.keys(this._languages);
    }
    static get key() {
        return this._key;
    }
    static configure(key, languages) {
        this._key = key;
        this._languages = languages;
        return this;
    }
    static language(name) {
        if (!this._languages[name]) {
            return null;
        }
        return {
            label: this._languages[name].label,
            translations: Object.assign({}, this._languages[name].translations)
        };
    }
    static load(req, defaults = 'en_US') {
        const locale = req.session(this.key);
        const language = new Language();
        language.locale = locale || defaults;
        return language;
    }
    _locale = 'en_US';
    get label() {
        return Language._languages[this._locale]?.label || this._locale;
    }
    get locale() {
        return this._locale;
    }
    get translations() {
        return Language._languages[this._locale]?.translations || {};
    }
    set locale(locale) {
        this._locale = locale;
    }
    save(res) {
        res.session.set(Language.key, this._locale);
        return this;
    }
    update(locale, res) {
        this._locale = locale;
        return this.save(res);
    }
    translate(phrase, ...variables) {
        let translation = this.translations[phrase] || phrase;
        for (let i = 0; i < variables.length; i++) {
            translation = translation.replace('%s', String(variables[i]));
        }
        return translation;
    }
}