// esbuild build for @hive/dashboard. Output layout (`dist/`):
//
//   dist/index.html               served by the Rust router at GET /
//   dist/static/app.js            served at /static/app.js (ESM bundle,
//                                  pulls in @hive/shared + marked)
//   dist/static/app.js.map        source map sibling
//   dist/static/dashboard.css     served at /static/dashboard.css
//                                  (@import resolved from @hive/shared)
//
// The Rust binary mounts `dist/` as a `tower_http::ServeDir` fallback;
// the layout above keeps every URL the index.html references reachable
// without rewriting paths in the HTML.

import { build } from 'esbuild';
import { mkdirSync, copyFileSync, rmSync } from 'node:fs';
import { dirname, resolve } from 'node:path';
import { fileURLToPath } from 'node:url';

const here = dirname(fileURLToPath(import.meta.url));
const src = (p) => resolve(here, 'src', p);
const dist = (p) => resolve(here, 'dist', p);
const staticDir = (p) => resolve(here, 'dist', 'static', p);

rmSync(dist(''), { recursive: true, force: true });
mkdirSync(staticDir(''), { recursive: true });

// Bundle the JS entry. ES-module output, browser target, no minify
// (line-aligned source aids debugging; minification belongs in a later
// follow-up once asset sizes warrant it).
await build({
  entryPoints: [src('app.js')],
  outfile: staticDir('app.js'),
  bundle: true,
  format: 'esm',
  platform: 'browser',
  target: ['es2022'],
  sourcemap: true,
  logLevel: 'info',
});

// Bundle the CSS — esbuild resolves @import including the package
// re-exports from @hive/shared.
await build({
  entryPoints: [src('dashboard.css')],
  outfile: staticDir('dashboard.css'),
  bundle: true,
  loader: { '.css': 'css' },
  logLevel: 'info',
});

for (const html of ['index.html', 'flow.html']) {
  copyFileSync(src(html), dist(html));
}

console.log('dashboard build ok →', dist(''));