evcc-io/assets/js/i18n.js
2022-12-03 14:32:53 +01:00

57 lines
1.5 KiB
JavaScript

import toml from "toml";
import { nextTick } from "vue";
import { createI18n } from "vue-i18n";
import en from "../../i18n/en.toml";
import { i18n as i18nApi } from "./api";
const PREFERRED_LOCALE_KEY = "preferred_locale";
function getBrowserLocale() {
const navigatorLocale =
navigator.languages !== undefined ? navigator.languages[0] : navigator.language;
if (!navigatorLocale) {
return undefined;
}
return navigatorLocale.trim().split(/-|_/)[0];
}
function getLocale() {
return window.localStorage[PREFERRED_LOCALE_KEY] || getBrowserLocale();
}
export default function setupI18n() {
const i18n = createI18n({
legacy: true,
silentFallbackWarn: true,
silentTranslationWarn: true,
locale: "en",
fallbackLocale: "en",
messages: { en },
});
setI18nLanguage(i18n, getLocale());
return i18n;
}
export function setI18nLanguage(i18n, locale) {
i18n.global.locale = locale;
document.querySelector("html").setAttribute("lang", locale);
}
async function loadLocaleMessages(i18n, locale) {
try {
const response = await i18nApi.get(`${locale}.toml`, { params: { v: window.evcc?.version } });
const messages = toml.parse(response.data);
i18n.global.setLocaleMessage(locale, messages);
} catch (e) {
console.error(`unable to load translation for [${locale}]`, e);
}
return nextTick();
}
export async function ensureCurrentLocaleMessages(i18n) {
const { locale } = i18n.global;
if (!i18n.global.availableLocales.includes(locale)) {
await loadLocaleMessages(i18n, locale);
}
}