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/** * Shop  * A minimal online store.  */import { serve } from "https://deno.land/std@0.147.0/http/server.ts";import { dirname, fromFileUrl } from "https://deno.land/std@0.147.0/path/mod.ts";import { callsites } from './deps.ts';import Shop from './lib/shop.ts';
const shopHandler = (shop: Shop) => {    return function handler(request: Request) {        let path = new URL(request.url).pathname;        path = ['/', ''].includes(path) ? '/home' : path;        const page = shop.manifest[path];         // Load the 404 page if a page is not found.         const pageNotFound = !page;        const document = pageNotFound             ? shop.manifest['/404']              : page; 
        // TODO: Add layout support.
        return pageNotFound             ? new Response(document.contents, { status: 404, headers: { "Content-Type": 'text/html' } })            : new Response(document.contents, { headers: { "Content-Type": 'text/html' } });    }}
export default async function shop(config?: ShopConfig) {      const callsite = callsites()[1].getFileName()!;      const directory = fromFileUrl(dirname(callsite));     const shop = await Shop(directory, config);            console.log('manifest: ', shop.manifest);    serve(shopHandler(shop), {port: 4242});}