const io = require('socket.io-client');

const SOCKET_SERVER_URL = process.env.SOCKET_SERVER_URL || 'https://al-asfar-mgzon-socket-server.hf.space';

let socketClient = null;

function getSocketClient() {
    if (!socketClient) {
        socketClient = io(SOCKET_SERVER_URL, {
            transports: ['websocket', 'polling'],
            reconnection: true,
            reconnectionAttempts: 10,
            reconnectionDelay: 1000,
            reconnectionDelayMax: 5000,
        });

        socketClient.on('connect', () => {
            console.log('✅ REST API connected to Socket.IO server');
        });

        socketClient.on('connect_error', (err) => {
            console.error('❌ REST API Socket.IO connection error:', err.message);
        });

        socketClient.on('disconnect', () => {
            console.warn('⚠️ REST API disconnected from Socket.IO server');
        });
    }
    return socketClient;
}

module.exports = getSocketClient;