/**
 * copy-pwa-icons.mjs — rename the @vite-pwa/assets-generator outputs to the
 * stable filenames the hand-maintained manifest references (WR-08).
 *
 * The generator emits preset-named files (pwa-192x192.png, …). The manifest in
 * vite.config.ts references stable names (/icon-192.png, …) so a generator
 * version bump that renames its outputs surfaces here as a clear, named error
 * rather than an opaque shell `cp: cannot stat`. This replaces a Unix-only `cp`
 * chain so Windows contributors and minimal CI containers can run `pwa:icons`.
 *
 * Keep COPIES in sync with the manifest `icons` array in vite.config.ts.
 *
 * NOTE (IN-02): public/favicon.ico is NOT produced by this script — the
 * minimal2023Preset does not emit a .ico. It is hand-maintained and committed
 * directly in public/, and referenced by index.html (`<link rel="icon"
 * href="/favicon.ico">`). When the brand mark changes, regenerate favicon.ico
 * manually so it does not go stale relative to the SVG/PNG outputs below.
 */
import { copyFileSync, existsSync } from 'node:fs';
import { fileURLToPath } from 'node:url';
import { dirname, join } from 'node:path';

const here = dirname(fileURLToPath(import.meta.url));
const publicDir = join(here, '..', 'public');

/** [generated source name, stable destination name referenced by the manifest] */
const COPIES = [
  ['pwa-192x192.png', 'icon-192.png'],
  ['pwa-512x512.png', 'icon-512.png'],
  ['maskable-icon-512x512.png', 'icon-maskable-512.png'],
  ['apple-touch-icon-180x180.png', 'apple-touch-icon.png'],
  ['logo.svg', 'favicon.svg'],
];

let failed = false;
for (const [src, dest] of COPIES) {
  const from = join(publicDir, src);
  const to = join(publicDir, dest);
  if (!existsSync(from)) {
    console.error(
      `[pwa:icons] expected generated file not found: public/${src}\n` +
        `  The assets generator output names may have changed — update COPIES in\n` +
        `  apps/pwa/scripts/copy-pwa-icons.mjs and the manifest in vite.config.ts.`,
    );
    failed = true;
    continue;
  }
  copyFileSync(from, to);
  console.log(`[pwa:icons] public/${src} → public/${dest}`);
}

if (failed) process.exit(1);