import { router } from './router.js';

// /// <reference types="types-serviceworker" />

/// <reference path="../../serviceworker.d.ts" />


// eslint-disable-next-line @typescript-eslint/no-unused-vars, @typescript-eslint/no-namespace
// namespace cache
// {
declare const self: ServiceWorkerGlobalScope;

router.use(async function (req: Request, event: FetchEvent)
{
    event.respondWith(
        caches.open('akala').then(async function (cache)
        {
            const response = await cache.match(req);
            // Cache hit - return response

            if (response)
            {
                // req.headers.append('if-modified-since', response.headers.get('last-modified'))
                // req.headers.append('if-match', response.headers.get('etag'))

                const res = await fetch(req);
                if (res.status == 200)
                {
                    cache.put(req, res.clone());
                    if (event.clientId)
                        self.clients.get(event.clientId).then(cl => cl.postMessage({ type: 'update' }))
                }

                return response;
            }
            else
            {
                const response = await fetch(req);
                await cache.put(req, response.clone())
                return response;
            }
        }));
})
// }