script.js

// Bring up websocket and perform device handshake

let deviceWebsocket = new WebSocket("ws://127.0.0.1:54817");
let deviceAddress = "A9816725B";
let handshakePacket = {
  identifier: "LVS-Test",
  address: deviceAddress,
  version: 0
};

// When we open, send handshake and setup event handlers
deviceWebsocket.addEventListener("open", (socket) => {
  console.log("Connected");
  deviceWebsocket.send(JSON.stringify(handshakePacket));
  console.log("Handshake Sent");
  deviceWebsocket.addEventListener("message", async (event) => {
    
    let msg = await event.data.text();
    console.log(msg);
    if (msg.indexOf("DeviceType;") !== -1) {
      console.log("got device type");
      console.log(`Z:10:${deviceAddress};`);
      // Lovense initialization request
      deviceWebsocket.send(`Z:10:${deviceAddress};`);
    } else if (msg.indexOf("Battery;") !== -1) {
      console.log("Got battery");
      // Buttplug will wait for a response to Battery so just make something up.
      deviceWebsocket.send("90;");
    } else {
      console.log(`Lovense command: ${msg}`);
      // If it's a vibrate message, get the vibrate level, which will be 0-20.
      let regex = /Vibrate:([0-9]+)/;
      let match = msg.match(regex);
      if (match.length > 1) {
        console.log(match[1]);
        let rotateValue = ((match[1] / 20.0) * 240) - 120; 
        document.getElementById("rotatepin").style.transform = `rotate(${rotateValue}deg)`;
        document.getElementById("rotateline").style.transform = `rotate(${rotateValue}deg)`;
      }
      //document.getElementById("lovense-output").innerHTML = msg;
      // If we wanted to conform with the Lovense protocol we'd send "OK;" here, but Buttplug doesn't care.
    }
  });
});