import { Server, Socket } from 'socket.io';
import { createServer } from 'http';
import express from 'express';
import cors from 'cors';
import { ChatMessage, saveMessage, loadRecentMessages } from './chatHistory';

const app = express();
app.use(cors());

const httpServer = createServer(app);
const io = new Server(httpServer, {
  cors: {
    origin: [
      "http://localhost:3000",
      "http://localhost:3030",
      "http://localhost:3031",
      "https://dev.duelfi.io",
      "https://beta.duelfi.io"
    ],
    methods: ["GET", "POST"]
  }
});

// Store recent messages in memory
const recentMessages: ChatMessage[] = loadRecentMessages();

io.on('connection', (socket: Socket) => {
  console.log('User connected:', socket.id);

  // Send recent messages to newly connected users
  socket.emit('recent messages', recentMessages);

  socket.on('chat message', (message: ChatMessage) => {
    // Save message to file
    saveMessage(message);
    
    // Add message to recent messages
    recentMessages.push(message);
    if (recentMessages.length > 100) {
      recentMessages.shift();
    }

    // Broadcast message to all connected clients
    io.emit('chat message', message);
  });

  socket.on('disconnect', () => {
    console.log('User disconnected:', socket.id);
  });
});

const PORT = 3040;
httpServer.listen(PORT, () => {
  console.log(`Socket.IO server running on port ${PORT}`);
});