/* eslint-disable @typescript-eslint/no-var-requires */ import parser from "accept-language-parser"; import type { IncomingMessage } from "http"; import type { Maybe } from "@calcom/trpc/server"; const { i18n } = require("@calcom/config/next-i18next.config"); export function getLocaleFromHeaders(req: IncomingMessage): string { let preferredLocale: string | null | undefined; if (req.headers["accept-language"]) { preferredLocale = parser.pick(i18n.locales, req.headers["accept-language"]) as Maybe; } return preferredLocale ?? i18n.defaultLocale; } // Workaround for using router.locales from old router export const locales = i18n.locales as string[]; export const localeOptions = locales.map((locale) => ({ value: locale, label: new Intl.DisplayNames(locale, { type: "language" }).of(locale) || "", }));