export type GatewayLaunchStrategy = 'utility-process' | 'node-runtime';

function normalizeForcedStrategy(
  forced: string | undefined,
): GatewayLaunchStrategy | null {
  const normalized = forced?.trim().toLowerCase();
  switch (normalized) {
    case 'utility':
    case 'utility-process':
      return 'utility-process';
    case 'node-runtime':
    case 'node':
    case 'cli':
    case 'electron-run-as-node':
      return 'node-runtime';
    default:
      return null;
  }
}

export function resolveGatewayLaunchStrategy(options: {
  platform: NodeJS.Platform;
  mode: 'dev' | 'packaged';
  forced?: string | undefined;
}): GatewayLaunchStrategy {
  const forced = normalizeForcedStrategy(options.forced);
  if (forced) {
    return forced;
  }

  if (options.platform === 'win32' && options.mode === 'dev') {
    return 'node-runtime';
  }

  return 'utility-process';
}