quartz-research-note/quartz/i18n/i18next.ts

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import en from "./locales/en.json"
import fr from "./locales/fr.json"
const TRANSLATION = {
"en-US": en,
"fr-FR": fr,
} as const
type TranslationOptions = {
[key: string]: string
}
export const i18n = (lang = "en-US", key: string, options?: TranslationOptions) => {
const locale =
Object.keys(TRANSLATION).find(
(key) =>
key.toLowerCase() === lang.toLowerCase() || key.toLowerCase().includes(lang.toLowerCase()),
) ?? "en-US"
const getTranslation = (key: string) => {
const keys = key.split(".")
let translationString: string | Record<string, unknown> =
TRANSLATION[locale as keyof typeof TRANSLATION]
keys.forEach((key) => {
// @ts-ignore
translationString = translationString[key]
})
return translationString
}
if (options) {
let translationString = getTranslation(key).toString()
Object.keys(options).forEach((key) => {
translationString = translationString.replace(`{{${key}}}`, options[key])
})
return translationString
}
return getTranslation(key).toString()
}