import {WebSocketServer, WebSocket} from 'ws'

const wss = new WebSocketServer({port: 8081})

// connection event

/**
 * Connection types
 * 0: connecting
 * 1: open (the only state where you can safely .send())
 * 2: Closing
 * 3: closed
 */

wss.on('connection', (s, r)=>{
    const ip = r.socket.remoteAddress

    s.on('message', (rawData)=>{
        const message = rawData.toString()
        console.log({rawData})

        wss.clients.forEach((client)=>{
            // can use readyState to be === 1 or WebSocket.OPEN they mean the same thing
            if(client.readyState === WebSocket.OPEN) client.send(`Server Broadcast: ${message}`)
        })
    })

    s.on("error", ()=>{
        console.error(`Error: ${err.message}: ${ip}`)
    })

    s.on('close', ()=>{
        console.log('Client Disconnected')
    })
})

console.log("Server Running on 8081")