import { build } from 'esbuild';
import { copyFile, mkdir } from 'node:fs/promises';
import { syncShared } from './sync_shared.mjs';

await syncShared(['firefox']);

await mkdir('extension/firefox/lib', { recursive: true });
await copyFile('node_modules/tesseract.js-core/tesseract-core-lstm.wasm.js', 'extension/firefox/lib/tesseract-core-lstm.wasm.js');
await mkdir('extension/firefox/lib/licenses', { recursive: true });
for (const [name, filename] of Object.entries({
  'tesseract.js': 'LICENSE.md', 'tesseract.js-core': 'LICENSE',
  'bmp-js': 'LICENSE', 'idb-keyval': 'LICENCE', 'is-url': 'LICENSE-MIT',
  'wasm-feature-detect': 'LICENSE', zlibjs: 'LICENSE', buffer: 'LICENSE',
  'base64-js': 'LICENSE', ieee754: 'LICENSE',
})) {
  await copyFile(`node_modules/${name}/${filename}`, `extension/firefox/lib/licenses/${name}.txt`);
}

// Firefox 109 supports native async/generators and globalThis. Build directly
// from upstream source rather than shipping legacy regenerator/webpack eval
// fallbacks. This is reproducible from package-lock.json with npm ci.
const options = {
  bundle: true,
  platform: 'browser',
  target: 'firefox109',
  format: 'iife',
  minify: true,
  legalComments: 'inline',
  define: { global: 'globalThis' },
  inject: ['scripts/firefox_buffer_shim.mjs'],
  plugins: [{
    name: 'native-async',
    setup(build) {
      build.onResolve({ filter: /^regenerator-runtime\/runtime$/ }, () => ({
        path: 'native-async', namespace: 'native-async',
      }));
      build.onLoad({ filter: /.*/, namespace: 'native-async' }, () => ({
        contents: '// Native async and generators require no runtime polyfill.',
      }));
    },
  }],
};

await build({
  ...options,
  entryPoints: ['node_modules/tesseract.js/src/index.js'],
  globalName: 'Tesseract',
  outfile: 'extension/firefox/lib/tesseract.min.js',
});
await build({
  ...options,
  entryPoints: ['node_modules/tesseract.js/src/worker-script/browser/index.js'],
  outfile: 'extension/firefox/lib/worker.min.js',
});