ModuleBuilder/src/preprocessors/pcTheme.js

import { readFileSync, writeFileSync, mkdirSync, rmSync } from 'fs';

export default (manifestPath, repo) => {
  const pcManifest = JSON.parse(readFileSync(manifestPath));

  const manifest = {
    main: 'index.js',
    tags: ['theme', 'port'],

    name: pcManifest.name,
    description: pcManifest.description,

    version: pcManifest.version,
    authors: [ pcManifest.author ]
  };

  rmSync(themePath);
  mkdirSync(themePath);

  const jsCode = `// Generated by MS2Builder - pcTheme preprocessor / porter
let style;

export default {
  goosemodHandlers: {
    onImport: async () => {
      style = document.createElement("style");
      document.head.appendChild(style);
      style.appendChild(
        document.createTextNode(
          \`${content}\`
        )
      );
    },
  
    onRemove: async () => {
      style.remove();
    },
  }
};`;

  writeFileSync(`${themePath}/goosemodModule.json`, JSON.stringify(manifest));
  writeFileSync(`${themePath}/index.js`, jsCode);
};