// Shared build helper: inline shared/effective-grants.js into a workflow's
// Code node body, stripping the module.exports shim. All gen_*.js scripts use
// this so the "single source of truth" file is what actually ships.
const fs = require('fs');
const path = require('path');

const SHARED_PATH = path.join(__dirname, 'shared', 'effective-grants.js');
const EXPORT_MARKER = '/* SHARED_EXPORT_BEGIN */';

// Returns the shared library source WITHOUT the module.exports block — a
// plain script ready to prepend to (or include in) a Code node's jsCode.
function sharedSource() {
  const src = fs.readFileSync(SHARED_PATH, 'utf8');
  const idx = src.indexOf(EXPORT_MARKER);
  if (idx === -1) throw new Error('SHARED_EXPORT_BEGIN marker not found in shared source');
  return src.slice(0, idx).replace(/\s+$/, '');
}

module.exports = { sharedSource, SHARED_PATH };