import type { NextRequest } from 'next/server';
import { NextResponse } from 'next/server';

import { i18n } from '../i18n-config';

import { match as matchLocale } from '@formatjs/intl-localematcher';
import Negotiator from 'negotiator';

function getLocale(request: NextRequest): string | undefined {
    // Negotiator expects plain object so we need to transform headers
    const negotiatorHeaders: Record<string, string> = {};
    request.headers.forEach((value, key) => (negotiatorHeaders[key] = value));

    // Use negotiator and intl-localematcher to get best locale
    let languages = new Negotiator({ headers: negotiatorHeaders }).languages();
    // @ts-ignore locales are readonly
    const locales: string[] = i18n.locales;
    return matchLocale(languages, locales, i18n.defaultLocale);
}

export function middleware(request: NextRequest) {
    const pathname = request.nextUrl.pathname;

    // `/_next/` and `/api/` are ignored by the watcher, but we need to ignore files in `public` manually.
    // If you have one
    if (
        [
            '/manifest.json',
            '/favicon.ico',
            // Your other files in `public`
        ].includes(pathname)
    )
        return;

    // Check if there is any supported locale in the pathname
    const pathnameIsMissingLocale = i18n.locales.every(
        (locale) => !pathname.startsWith(`/${locale}/`) && pathname !== `/${locale}`
    );

    // Redirect if there is no locale
    if (pathnameIsMissingLocale) {
        const locale = getLocale(request);

        // e.g. incoming request is /products
        // The new URL is now /en-US/products
        return NextResponse.redirect(new URL(`/${locale}/${pathname}`, request.url));
    }
}

import { auth } from './auth';

export default auth((request: NextRequest) => {
    console.log("ROUTE: ", request.nextUrl.pathname);
})

export const config = {
    matcher: ["/((?!.+\\.[\\w]+$|_next).*)", "/", "/(api|trpc)(.*)"],
};