const express = require("express")
const app = express()
const server = require("http").Server(app)
const io = require("socket.io")(server)
const { v4: uuidV4 } = require("uuid")

app.set("view engine", "ejs")
app.use(express.static("public"))

app.get("/", (_, res) => res.redirect(`/${uuidV4()}`))

app.get("/:room", (req, res) => res.render("room", { roomId: req.params.room }))

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

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

server.listen(3001)