// Build a single, self-contained dist/index.html.
//
// Everything — app code, the @scure/@noble crypto libs, the QR generator, and
// all CSS — is bundled and inlined so the result is one file you can save and
// open offline straight from the filesystem (file://). No server, no network.
import { mkdir } from 'node:fs/promises';
const FAVICON =
'data:image/svg+xml,' +
encodeURIComponent(
``
);
export async function buildHtml({ minify = true } = {}) {
const result = await Bun.build({
entrypoints: ['./src/app.js'],
target: 'browser',
minify,
});
if (!result.success) {
for (const log of result.logs) console.error(log);
throw new Error('bundle failed');
}
let js = await result.outputs[0].text();
// Guard against a literal inside the bundle closing our tag early.
js = js.replaceAll('
Bitcoin Wallet
`;
}
if (import.meta.main) {
await mkdir('dist', { recursive: true });
const html = await buildHtml({ minify: true });
await Bun.write('dist/index.html', html);
const kb = (Buffer.byteLength(html) / 1024).toFixed(0);
console.log(`✓ dist/index.html written (${kb} KB) — open it offline, no server needed`);
}