/**
 * Shared Socket.IO client singleton.
 *
 * Import `socket` anywhere in the frontend to use the shared connection.
 * The socket connects lazily — the first import triggers the connection.
 */
import { io, Socket } from "socket.io-client";

const SOCKET_URL =
  import.meta.env.VITE_API_BASE_URL_BACKEND ||
  (typeof window !== "undefined" ? window.location.origin : "");

export const socket: Socket = io(SOCKET_URL, {
  withCredentials: true,
  autoConnect: true,
});

socket.on("connect", () => {
  console.log("[socket] connected:", socket.id);
});

socket.on("disconnect", () => {
  console.log("[socket] disconnected");
});