console.log("Initializing websocket");
  if (window.socket==null) {
      window.socket = new WebSocket("ws://" + location.host + "/ws");
  } 

  socket.onopen = () => {
    console.log("WebSocket connected");
    window.connected = true;
  };

  

  socket.onerror = (err) => {
    console.error("WebSocket error:", err);
    window.connected = false;
  };

  socket.onclose = () => {
    console.log("WebSocket closed");
    window.connected = false;
  };

window.send_data = function(value){
    if (socket.readyState === WebSocket.OPEN){
        socket.send(value);
        console.log("Sent data : "+value);
    } else {
        setTimeout(() => send_data(value),50)
        //console.log("Failed to send_data, socket readyState = "+socket.readyState);
    }
}