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import { compose, Context, createHandler, createRoute } from "./mod.ts";
// You can optionally extend the default `Context` object or pass a `State` type.export class Ctx extends Context<{ start: number }> {  pathname = this.url.pathname;}
function date(ctx: Ctx) {  ctx.state.start = Date.now();  return ctx;}
function verify(ctx: Ctx) {  const authHeader = ctx.request.headers.get("Authorization");  if (!authHeader) throw new Error("Unauthorized");  return ctx;}
function greet(ctx: Ctx) {  ctx.response = new Response(`Hello World!`);  return ctx;}
function welcome(ctx: Ctx) {  const name = ctx.result.pathname.groups.name;  if (name) ctx.response = new Response(`Welcome, ${name}!`);  return ctx;}
function sub(ctx: Ctx) {  ctx.response = new Response(    `What's up ${ctx.result.hostname.groups.subdomain}?`,  );  return ctx;}
function fix(ctx: Ctx) {  console.error(ctx.error?.message);  ctx.response = new Response("Unauthorized", { status: 401 });  return ctx;}
function setHeader(ctx: Ctx) {  const ms = Date.now() - ctx.state.start;  ctx.response.headers.set("X-Response-Time", `${ms}ms`);  return ctx;}
function log(ctx: Ctx) {  const rt = ctx.response.headers.get("X-Response-Time");  console.log(    `${ctx.request.method} ${ctx.request.url} [${ctx.response.status}] - ${      String(rt)    }`,  );  return ctx;}
// This is just a showcase. You can compose all of it to much fewer lines of code.const routeGet = createRoute("GET");const routeAllAndEverything = createRoute("ALL")({ pathname: "*" });const routePrivate = createRoute("DELETE", "POST")({ pathname: "/private/*" });
const greetOrWelcome = compose(welcome, greet);
const getSubdomain = routeGet({  hostname: `{:subdomain.}+localhost`,  pathname: "*",});const handleWelcome = routeGet({ pathname: "/{:name}?" })(greetOrWelcome);const handleDate = routeAllAndEverything(date);const handleVerify = routePrivate(verify);const handleSubdomain = getSubdomain(sub);
const tryMiddleware = compose(  handleSubdomain,  handleWelcome,  handleVerify,  handleDate,  // deno-lint-ignore no-explicit-any) as any; // TS WTF!const catchMiddleware = routeAllAndEverything(fix);const finallyMiddleware = routeAllAndEverything(log, setHeader);
const handler = createHandler(Ctx)(tryMiddleware)(catchMiddleware)(  finallyMiddleware,);
Deno.serve(handler);