@nasriya/hypercloud
Version:
Nasriya HyperCloud is a lightweight Node.js HTTP2 framework.
54 lines (53 loc) • 2.19 kB
JavaScript
import helpers from "../../utils/helpers.js";
class LanguagesManager {
#_supported = ['en'];
#_default = 'en';
get default() { return this.#_default; }
/**
* Set or get the default language of the server
* @param {string} lang The default language
*/
set default(lang) {
if (this.#_supported.includes(lang)) {
this.#_default = lang;
}
else {
throw new Error(`Cannot set default language: ${lang} is not supported`);
}
}
get supported() { return this.#_supported; }
set supported(langs) {
if (!(typeof langs === 'string' || Array.isArray(langs))) {
throw new TypeError(`The server's supported languages accepts a string or a list of strings, but instead got ${typeof langs}`);
}
if (typeof langs === 'string') {
if (langs.length === 0) {
throw `The server's supported languages cannot be an empty string`;
}
this.#_supported = [langs.toLowerCase()];
this.default = langs.toLowerCase();
}
else {
langs = [...new Set(langs)];
if (langs.length === 0) {
throw `The server's supported languages recieved an empty array`;
}
const supported = [];
for (const lang of langs) {
if (typeof lang === 'string' && lang.length > 0) {
supported.push(lang.toLowerCase());
}
else {
throw new TypeError(`The server's supported languages accepts a list of strings, but one or more of its items are invalid`);
}
}
this.#_supported = supported;
}
if (!this.#_supported.includes(this.#_default)) {
helpers.printConsole(`The server recieved a new list of supported languages, but the default language (${this.default}) is not part of the new list.`);
helpers.printConsole(`Setting the new default language to: ${this.supported[0] || 'en'}`);
this.default = this.supported[0] || 'en';
}
}
}
export default LanguagesManager;