/**
 * Named Socket.IO namespaces.
 * - TRADING: all authenticated users; receives user-scoped bot state
 * - ADMIN:   admin-only; receives full cross-user state + admin-specific events
 *
 * Root namespace (/) is kept for backward compatibility.
 */
export const SOCKET_NAMESPACES = {
  TRADING: '/trading',
  ADMIN: '/admin',
} as const;

export type SocketNamespace = typeof SOCKET_NAMESPACES[keyof typeof SOCKET_NAMESPACES];

export function buildTradingSocketOptions(token: string, socketPath?: string) {
  return {
    transports: ['polling', 'websocket'] as ('polling' | 'websocket')[],
    auth: { token },
    ...(socketPath ? { path: socketPath } : {}),
  };
}

export function isUnauthorizedSocketError(message: string) {
  const normalizedMessage = message.toLowerCase();
  return normalizedMessage.includes('unauthorized') || normalizedMessage.includes('invalid token');
}