VRCX/src/localization/index.js

const localizedStringsUrls = import.meta.glob('./*.json', {
    eager: true,
    query: '?url',
    import: 'default'
});

async function fetchJson(url) {
    const response = await fetch(url);
    if (!response.ok) {
        console.warn(`Failed to fetch localization: ${response.status}`);
    }
    return response.json();
}

async function getLocalizedStrings(code) {
    const fallbackUrl = localizedStringsUrls['./en.json'];
    const localizedStringsUrl =
        localizedStringsUrls[`./${code}.json`] || fallbackUrl;

    let localizedStrings = {};
    try {
        localizedStrings = await fetchJson(localizedStringsUrl);
    } catch {
        if (localizedStringsUrl !== fallbackUrl) {
            localizedStrings = await fetchJson(fallbackUrl).catch(() => ({}));
        }
    }

    return localizedStrings;
}

const languageNames = import.meta.glob('./*.json', {
    eager: true,
    import: 'language'
});

function getLanguageName(code) {
    return String(languageNames[`./${code}.json`] ?? code);
}

export * from './locales';
export { getLanguageName, getLocalizedStrings };