import { cp, mkdir, writeFile } from 'node:fs/promises';
import path from 'node:path';
import { fileURLToPath } from 'node:url';

const frontendDir = path.resolve(
  path.dirname(fileURLToPath(import.meta.url)),
  '..',
);
const rootDir = path.resolve(frontendDir, '../..');
const nodeModules = path.join(rootDir, 'node_modules');
const publicDir = path.join(frontendDir, 'public');

const assets = [
  [
    '@mlightcad/cad-simple-viewer/dist/dxf-parser-worker.js',
    'assets/dxf-parser-worker.js',
  ],
  [
    '@mlightcad/cad-simple-viewer/dist/libredwg-parser-worker.js',
    'assets/libredwg-parser-worker.js',
  ],
  [
    '@mlightcad/cad-simple-viewer/dist/mtext-renderer-worker.js',
    'assets/mtext-renderer-worker.js',
  ],
  [
    'occt-import-js/dist/occt-import-js.wasm',
    'viewer-assets/wasm/occt-import-js.wasm',
  ],
  ['web-ifc/web-ifc.wasm', 'viewer-assets/wasm/web-ifc.wasm'],
  [
    '@noto-pdf-ts/fonts-kr/dist/fonts/NotoSansKR-VF.ttf',
    'viewer-assets/cad-resources/fonts/NotoSansKR-VF.ttf',
  ],
  [
    '@fontsource-variable/noto-sans-kr/LICENSE',
    'viewer-assets/cad-resources/fonts/OFL-1.1.txt',
  ],
];

await Promise.all(
  assets.map(async ([source, destination]) => {
    const output = path.join(publicDir, destination);
    await mkdir(path.dirname(output), { recursive: true });
    await cp(path.join(nodeModules, source), output);
  }),
);

const resources = path.join(publicDir, 'viewer-assets', 'cad-resources');
await mkdir(path.join(resources, 'fonts'), { recursive: true });
await mkdir(path.join(resources, 'templates'), { recursive: true });
const fontManifest = `${JSON.stringify(
    [
      {
        name: [
          'Noto Sans KR',
          'arial',
          'batang',
          'dotum',
          'ghs',
          'gulim',
          'hztxt',
          'isocpeur',
          'malgun',
          'malgun gothic',
          'pmingliu',
          'romans',
          'sanss___',
          'simplex',
          'swisscbo',
          'whgtxt',
          'whs',
        ],
        file: 'NotoSansKR-VF.ttf',
        type: 'mesh',
        description: 'Open-source Korean CAD fallback (SIL OFL 1.1)',
      },
    ],
    null,
    2,
  )}\n`;
await Promise.all([
  writeFile(path.join(resources, 'fonts.json'), fontManifest),
  writeFile(path.join(resources, 'fonts', 'fonts.json'), fontManifest),
]);
await writeFile(
  path.join(resources, 'README.txt'),
  [
    'Noto Sans KR is bundled as the open-source Korean CAD fallback.',
    'Additional CAD fonts may be placed here when redistribution is permitted.',
    'The read-only viewer does not require a drawing template.',
    '',
  ].join('\n'),
);