import { ErrorEvent } from "undici-types";

let webSocket: WebSocket;

function openConnection() {
    if (webSocket && webSocket.readyState <= WebSocket.OPEN) {
        console.log("WebSocket state: " + webSocket.readyState);
        return;
    }

    webSocket = new WebSocket("ws://localhost:1");
    console.log("WebSocket created");

    webSocket.addEventListener("error", (event) => handleError(event));
}

function handleError({ message }: ErrorEvent) {
    console.log(message);

    if (message === "Connection was closed before it was established.") {
        openConnection();
        return;
    }

    webSocket.close();
}

openConnection();