const express = require("express");
const http = require("http");
const socketIo = require("socket.io");

const app = express();
const server = http.createServer(app);
const io = socketIo(server, {
  cors: {
    origin: "*",
    methods: ["GET", "POST"]
  }
});

const port = 3005;

app.use(express.static("public"));

// WebSocket-Verbindungen verwalten
io.on("connection", (socket) => {
  console.log("Client connected:", socket.id);

  // Teleskop-Position broadcaasting
  socket.on("telescope-position", (data) => {
    // An alle anderen Clients weiterleiten (außer Sender)
    socket.broadcast.emit("telescope-position", data);
  });

  // Kuppel-Position broadcasting
  socket.on("dome-position", (data) => {
    socket.broadcast.emit("dome-position", data);
  });

  // Teleskop-Steuerung
  socket.on("telescope-control", (data) => {
    io.emit("telescope-control", data);
  });

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

server.listen(port, () => {
  console.log(`Observatory simulation running at http://localhost:${port}`);
  console.log("WebSocket server is ready for telescope and dome communication");
});