import { Server as NetHttpServer } from 'http';
import { Server as NetServer, Socket } from 'net';
import { NextApiRequest, NextApiResponse } from 'next';
import { Server as ServerIO } from 'socket.io';

export const config = {
  api: {
    bodyParser: false,
  },
};

export type NextApiResponseServerIo = NextApiResponse & {
  socket: Socket & {
    server: NetServer & {
      io: ServerIO;
    };
  };
};

const ioHandler = (req: NextApiRequest, res: NextApiResponseServerIo) => {
  if (!res.socket.server.io) {
    const path = '/api/ws';
    const httpServer: NetHttpServer = res.socket.server as any;
    const io = new ServerIO(httpServer, {
      // path: path,
      // addTrailingSlash: false,
      transports: ['websocket'],
    });
    res.socket.server.io = io;

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

  res.end();
};

export default ioHandler;