heygo/worker/index.ts

import type { Env } from './env';
import { handlePrivateShortlink, isHeygoPrivateHost } from './routes/private-redirect';
import { handlePublicShortlink, isHeygoPublicHost, isReservedPublicPath } from './routes/redirect';

export type { Env } from './env';

const jsonHeaders = {
  'content-type': 'application/json; charset=utf-8',
};

function json(body: unknown, init: ResponseInit = {}) {
  return Response.json(body, {
    ...init,
    headers: {
      ...jsonHeaders,
      ...init.headers,
    },
  });
}

export default {
  async fetch(request, env, ctx): Promise<Response> {
    const url = new URL(request.url);

    if (url.pathname === '/api/health') {
      return json({ ok: true, service: 'heygo-worker' });
    }

    if (url.pathname.startsWith('/api/')) {
      return json({ error: 'Not found' }, { status: 404 });
    }

    if (isHeygoPublicHost(url) && !isReservedPublicPath(url.pathname)) {
      return handlePublicShortlink(request, env, ctx);
    }

    if (isHeygoPrivateHost(url) && !isReservedPublicPath(url.pathname)) {
      return handlePrivateShortlink(request, env, ctx);
    }

    return json({ error: 'Not found' }, { status: 404 });
  },
} satisfies ExportedHandler<Env>;