// Generates apps/web/src/components/objectIcons.ts from the MDI icon set.
// Extracts only the icons referenced in ICON_NAMES so the bundle stays small,
// then registers them with Iconify's offline storage at import time.
import { readFileSync, writeFileSync, existsSync } from 'node:fs';
import { fileURLToPath } from 'node:url';
import { dirname, resolve } from 'node:path';
import { createRequire } from 'node:module';

const __dirname = dirname(fileURLToPath(import.meta.url));

// Resolve deps from apps/web, where the iconify packages are hoisted.
const webPkg = resolve(__dirname, '../apps/web/package.json');
const require = createRequire(webPkg);

// Resolve the mdi icons.json via the package entry (works from the pnpm store).
const mdiPkg = require.resolve('@iconify-json/mdi/icons.json');
const icons = JSON.parse(readFileSync(mdiPkg, 'utf8'));

const ICON_NAMES = [
  'cards-outline',
  'cards',
  'bag-personal-outline',
  'cube-outline',
  'cube',
  'circle-outline',
  'image-outline',
  'file-pdf-box',
  'dice-6',
  'chess-knight',
  'table-large',
  'help-circle-outline',
];

// Extract just the icons we need, keeping the set's prefix/dimensions.
const subset = {
  prefix: icons.prefix,
  width: icons.width,
  height: icons.height,
  icons: Object.fromEntries(
    ICON_NAMES.filter((name) => icons.icons[name]).map((name) => [
      name,
      icons.icons[name],
    ]),
  ),
};

const missing = ICON_NAMES.filter((name) => !icons.icons[name]);
if (missing.length > 0) {
  throw new Error(`Missing icons in mdi set: ${missing.join(', ')}`);
}

const out = resolve(__dirname, '../apps/web/src/components/objectIconsData.ts');
const body = `// Generated by scripts/generate-object-icons.mjs — do not edit by hand.
// Re-run \`node scripts/generate-object-icons.mjs\` after changing ICON_NAMES.
import { addCollection } from '@iconify/react';

const mdiSubset = ${JSON.stringify(subset, null, 2)};

addCollection(mdiSubset);
`;

writeFileSync(out, body);
console.log(`Wrote ${out} (${ICON_NAMES.length} icons)`);