Switch direction of link sharing

package.json

@@ -2,7 +2,7 @@
    "name": "ScreenSharingThing",
    "packageManager": "yarn@3.1.1",
    "scripts": {
-    "start": "ts-node src/index.ts"
+      "dev": "ts-node src/index.ts"
    },
    "devDependencies": {
       "@types/node": "^16.11.11",

public/index.html

@@ -26,14 +26,14 @@
             <h2>Your ID: <span id="streamId"></span></h2>
             <div id="streamURLCont">
                <h2>Connect URL: <a id="streamURL"></a></h2>
+               <button id="startStramBTN">Start Stream</button>
             </div>
             <div id="connectToCont">
                <h2>Connecting to: <span id="connectToID"></span></h2>
-               <button id="startStramBTN">Start Stream</button>
             </div>
          </div>
       </div>
-      <video id="localVideo" style="width: 100%" controls></video>
+      <video id="localVideo" style="width: 100%" controls muted></video>
    </div>
 
 

public/main.mjs

@@ -78,6 +78,7 @@ var peer = new Peer({
 });
 
 function bitrateTransform(sdp) {
+   // return sdp;
    var arr = sdp.split("\r\n");
    arr.forEach((str, i) => {
       if (/^a=fmtp:\d*/.test(str)) {
@@ -96,21 +97,21 @@ function bitrateTransform(sdp) {
    return res;
 }
 
-
 let currentStream = undefined;
-peer.on("open", (id) => {
-   console.log("ID", id);
-   sf.streamId_text = id;
-   let url = new URL(window.location.href);
-   url.searchParams.set("id", id);
-   sf.streamURL_text = url.href;
-   sf.streamURL_href = url.href;
 
-   let con = peer.connect(connectToId);
-   con.on("data", console.log);
-   con.on("open", () => con.send("Hello"));
+let connections = [];
 
-   if (connectToId) {
+function sendStream(id) {
+   const conn = peer.call(id, currentStream, {
+      sdpTransform: bitrateTransform,
+   });
+
+   conn.on("stream", console.log);
+   conn.on("close", console.log);
+   conn.on("error", console.log);
+}
+
+if (!connectToId) {
    sf.startStramBTN_click = () => {
       navigator.mediaDevices
          .getDisplayMedia({
@@ -118,25 +119,43 @@ peer.on("open", (id) => {
          })
          .then((stream) => {
             if (currentStream) {
-                  currentStream.getTracks().forEach(track => track.stop())
+               currentStream.getTracks().forEach((track) => track.stop());
             }
             currentStream = stream;
             let v = sf.localVideo;
             v.srcObject = stream;
             v.play();
-               const conn = peer.call(connectToId, stream, {
-                  sdpTransform: bitrateTransform,
+
+            connections.forEach((id) => {
+               sendStream(id);
             });
-               conn.on("stream", console.log);
-               conn.on("close", console.log);
-               conn.on("error", console.log);
          });
    };
 }
+
+peer.on("open", (id) => {
+   console.log("ID", id);
+   sf.streamId_text = id;
+
+   let url = new URL(window.location.href);
+   url.searchParams.set("id", id);
+   sf.streamURL_text = url.href;
+   sf.streamURL_href = url.href;
+
+   if (connectToId) {
+      let con = peer.connect(connectToId);
+      con.on("data", console.log);
+      con.on("open", () => con.send("Hello"));
+   }
 });
+
 peer.on("connection", (conn) => {
    console.log("connection", conn);
    conn.on("data", console.log);
+   connections.push(conn.peer);
+   if (currentStream) {
+      sendStream(conn.peer);
+   }
 });
 
 peer.on("error", console.error);