function parseEnvString(envString) {
  const result = {};
  if (!envString) return result;
  for (const line of envString.split('\n')) {
    const trimmed = line.trim();
    if (!trimmed || trimmed.startsWith('#')) continue;
    const eqIndex = trimmed.indexOf('=');
    if (eqIndex === -1) continue;
    const key = trimmed.slice(0, eqIndex).trim();
    const value = trimmed
      .slice(eqIndex + 1)
      .trim()
      .replace(/^["']|["']$/g, '');
    result[key] = value;
  }
  return result;
}

function extractPortalMeta(envString, fallbackLabel) {
  const vars = parseEnvString(envString);
  const appType = vars.PORTAL_APP_TYPE;
  if (appType !== 'web' && appType !== 'batch') {
    return null;
  }
  return {
    appType,
    label: vars.PORTAL_APP_LABEL || fallbackLabel,
    url: vars.PORTAL_APP_URL || null,
    triggerPath: vars.PORTAL_TRIGGER_PATH || null,
  };
}

module.exports = { parseEnvString, extractPortalMeta };