File size: 2,017 Bytes
a8b3f00 |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 |
import { cookies, headers } from 'next/headers'
import Negotiator from 'negotiator'
import { match } from '@formatjs/intl-localematcher'
import { createInstance } from 'i18next'
import resourcesToBackend from 'i18next-resources-to-backend'
import { initReactI18next } from 'react-i18next/initReactI18next'
import { i18n } from '.'
import type { Locale } from '.'
// https://locize.com/blog/next-13-app-dir-i18n/
const initI18next = async (lng: Locale, ns: string) => {
const i18nInstance = createInstance()
await i18nInstance
.use(initReactI18next)
.use(resourcesToBackend((language: string, namespace: string) => import(`./${language}/${namespace}.ts`)))
.init({
lng: lng === 'zh-Hans' ? 'zh-Hans' : lng,
ns,
fallbackLng: 'en-US',
})
return i18nInstance
}
export async function useTranslation(lng: Locale, ns = '', options: Record<string, any> = {}) {
const i18nextInstance = await initI18next(lng, ns)
return {
t: i18nextInstance.getFixedT(lng, ns, options.keyPrefix),
i18n: i18nextInstance,
}
}
export const getLocaleOnServer = (): Locale => {
const locales: string[] = i18n.locales
let languages: string[] | undefined
// get locale from cookie
const localeCookie = cookies().get('locale')
languages = localeCookie?.value ? [localeCookie.value] : []
if (!languages.length) {
// Negotiator expects plain object so we need to transform headers
const negotiatorHeaders: Record<string, string> = {}
headers().forEach((value, key) => (negotiatorHeaders[key] = value))
// Use negotiator and intl-localematcher to get best locale
languages = new Negotiator({ headers: negotiatorHeaders }).languages()
}
// Validate languages
if (!Array.isArray(languages) || languages.length === 0 || !languages.every(lang => typeof lang === 'string' && /^[\w-]+$/.test(lang)))
languages = [i18n.defaultLocale]
// match locale
const matchedLocale = match(languages, locales, i18n.defaultLocale) as Locale
return matchedLocale
}
|