server.js

const express = require("express");
const meetingRouter = require("./routes/meetingRoutes");

// setup
const app = express();
const server = require("http").Server(app);
const io = require("socket.io")(server);
app.set("view engine", "ejs");

// Middleware
app.use(express.static("public"));
app.use(express.urlencoded({ extended: false }));

//video confercing
io.on("connection", (socket) => {
  socket.on("join-room", (roomId, userId) => {
    socket.join(roomId);
    socket.to(roomId).emit("user-connected", userId);

    socket.once("disconnect", () => {
      socket.to(roomId).emit("user-disconnected", userId);
    });

    // chat event
    socket.on("chat", (data) => {
      socket.to(roomId).emit("chat", data);
    });

    // whiteboard
    socket.on("draw", (data) => {
      socket.to(roomId).emit("ondraw", {
        x: data.x,
        y: data.y,
      });
    });

    socket.on("down", (data) => {
      socket.to(roomId).emit("ondown", {
        x: data.x,
        y: data.y,
      });
    });
  });
});

// routes
app.use(meetingRouter);
app.get("*", (req, res) => {
  res.render("404");
});

// listen
server.listen(8000);

module.exports = io;