Next conf 2023, say hi (Browser Shell)

NextConf2023-Say-Hi.js

// This need to be pasted fast (before ws connects!)

let queue = [];
let initial = true;

function handler(wsUrl) {
  const ws = new WebSocket(wsUrl);
  console.log("Type hi('msg') to send a message!");

  setInterval(() => {
    if (queue.length) {
      const data = queue.shift();
      ws.send(
        JSON.stringify([
          {
            type: 100,
            targetActor: -1,
            data: {
              cursor: null,
              selectedPieceId: null,
              name: data,
              color: "var(--ds-purple-700)",
              isHost: false,
            },
          },
          { type: 100, data: { cursor: { x: 0.1, y: 0.5 } } },
        ])
      );
    }
  }, 100);
}

function init() {
  const originalWebSocket = WebSocket;
  window.WebSocket = function (...args) {
    const instance = new originalWebSocket(...args);

    if (initial) {
      initial = false;
      handler(instance.url);
      window.WebSocket = originalWebSocket;
    }

    return instance;
  };
}

init();
const hi = (msg) => queue.push(msg);