package com.smtaiserver.smtaiserver.web;

import java.util.Collections;
import java.util.HashSet;
import java.util.Set;
import org.springframework.stereotype.Component;
import org.springframework.web.socket.CloseStatus;
import org.springframework.web.socket.TextMessage;
import org.springframework.web.socket.WebSocketSession;
import org.springframework.web.socket.handler.TextWebSocketHandler;

@Component
public class SMTWebSocketHandler extends TextWebSocketHandler {

    private final Set<WebSocketSession> sessions = Collections.synchronizedSet(new HashSet<>());

    @Override
    public void afterConnectionEstablished(WebSocketSession session) throws Exception {
        sessions.add(session);
        System.out.println("Client connected: " + session.getId());
    }

    @Override
    protected void handleTextMessage(WebSocketSession session, TextMessage message) throws Exception {
        String payload = message.getPayload();
        System.out.println("Received message from " + session.getId() + ": " + payload);

        // Broadcast message to all connected clients
        for (WebSocketSession s : sessions) {
            if (s.isOpen()) {
                s.sendMessage(new TextMessage(payload));
            }
        }
    }

    @Override
    public void afterConnectionClosed(WebSocketSession session, CloseStatus status) throws Exception {
        sessions.remove(session);
        System.out.println("Client disconnected: " + session.getId());
    }

    public void broadcast(String message) {
        synchronized (sessions) {
            for (WebSocketSession session : sessions) {
                if (session.isOpen()) {
                    try {
                        session.sendMessage(new TextMessage(message));
                    } catch (Exception e) {
                        e.printStackTrace();
                    }
                }
            }
        }
    }
}