From dcbb8b816fdc2af2c1165b2f89d743c081894cd6 Mon Sep 17 00:00:00 2001
From: Pontus Persson <pontus.alexander@gmail.com>
Date: Fri, 8 Dec 2017 23:57:05 +0100
Subject: [PATCH] Create createHost thing.

---
 client/peer.js | 52 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 52 insertions(+)

diff --git a/client/peer.js b/client/peer.js
index eeeab5a..f1bf166 100644
--- a/client/peer.js
+++ b/client/peer.js
@@ -2,6 +2,58 @@ function errorHandler(error) {
     console.log(error);
 }
 
+export function createHost(peerExchange, peerConnectionConfig) {
+    const listeners = new Set();
+
+    function onConnection(callback) {
+        listeners.push(callback);
+    }
+
+    function emitConnection(conn) {
+        listeners.forEach(callback => callback(conn));
+    }
+
+    function handleSDP(sdp) {
+        host.setRemoteDescription(new RTCSessionDescription(signal.sdp));
+    }
+
+    peerExchange.listen(async (signal, send) => {
+        if (signal.sdp && signal.sdp.type === "offer") {
+            const host = createConn(peerExchange, peerConnectionConfig);
+
+            const remoteDesc = new RTCSessionDescription(signal.sdp);
+            await host.setRemoteDescription(remoteDesc);
+
+            const localDesc = await conn.createAnswer();
+            await host.setLocalDescription(localDesc);
+
+            send({'sdp': desc});
+        }
+    });
+
+    return {
+        onConnection,
+    };
+}
+
+export function createConn(peerExchange, peerConnectionConfig) {
+    const conn = new RTCPeerConnection(peerConnectionConfig);
+
+    conn.addEventListener('icecandidate', event => {
+        if(event.candidate != null) {
+            peerExchange.send({ice: event.candidate});
+        }
+    });
+
+    peerExchange.listen(signal => {
+        if(signal.ice) {
+            conn.addIceCandidate(new RTCIceCandidate(signal.ice)).catch(errorHandler);
+        }
+    });
+
+    return conn;
+}
+
 export function createPeer(peerExchange, peerConnectionConfig) {
     const conn = new RTCPeerConnection(peerConnectionConfig);