// Production entry: the API plus the static client build, with an SPA fallback
// so deep links like /products/:handle load index.html.
import { readFile } from 'node:fs/promises';
import { Hono } from 'hono';
import { serve } from '@hono/node-server';
import { serveStatic } from '@hono/node-server/serve-static';
import api from './app';

const CLIENT_DIR = './dist/client';
const indexHtml = await readFile(`${CLIENT_DIR}/index.html`, 'utf8');

const app = new Hono();

app.route('/', api);
// Unknown API paths stay JSON 404s rather than falling through to the SPA.
app.all('/api/*', (c) => c.json({ error: 'Not found' }, 404));

// Hashed build assets never change, so let browsers keep them.
app.use('/assets/*', async (c, next) => {
  await next();
  c.header('Cache-Control', 'public, max-age=31536000, immutable');
});
app.use('*', serveStatic({ root: CLIENT_DIR }));
app.get('*', (c) => c.html(indexHtml));

const port = Number(process.env.PORT) || 3000;

serve({ fetch: app.fetch, port }, (info) => {
  console.log(`Storefront listening on http://localhost:${info.port}`);
});