From 9a44e9370cb3398bb4bb08a4a85f1d303a90031f Mon Sep 17 00:00:00 2001
From: MetaMuffin <metamuffin@yandex.com>
Date: Fri, 6 Aug 2021 08:58:38 +0200
Subject: a

---
 source/client/remote_user.ts | 62 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 62 insertions(+)
 create mode 100644 source/client/remote_user.ts

(limited to 'source/client/remote_user.ts')

diff --git a/source/client/remote_user.ts b/source/client/remote_user.ts
new file mode 100644
index 0000000..f859dd9
--- /dev/null
+++ b/source/client/remote_user.ts
@@ -0,0 +1,62 @@
+import { log } from "./logger"
+import { Room } from "./room"
+import { User } from "./user"
+
+
+
+export class RemoteUser extends User {
+    peer: RTCPeerConnection
+
+    constructor(room: Room, name: string) {
+        super(room, name)
+        this.peer = new RTCPeerConnection()
+        this.peer.onicecandidate = ev => {
+            if (!ev.candidate) return
+            room.websocket_send({ ice_candiate: ev.candidate.toJSON(), receiver: this.name })
+        }
+        this.peer.ontrack = ev => {
+            log("media", "remote track", ev.streams)
+            if (!ev.streams.length) return console.warn("no remote tracks")
+            ev.streams.forEach(s => s.getTracks().forEach(t => {
+                if (this.stream.find(u => u.id == t.id)) return
+                this.stream.push(t)
+                this.update_view()
+            }))
+        }
+    }
+
+    async offer() {
+        const offer_description = await this.peer.createOffer()
+        await this.peer.setLocalDescription(offer_description)
+        const offer = { type: offer_description.type, sdp: offer_description.sdp }
+        log("webrtc", "sent offer", offer)
+        this.room.websocket_send({ receiver: this.name, offer })
+    }
+    async on_offer(offer: RTCSessionDescriptionInit) {
+        log("webrtc", "got offer", offer)
+        const offer_description = new RTCSessionDescription(offer)
+        await this.peer.setRemoteDescription(offer_description)
+        this.answer()
+    }
+    async answer() {
+        const answer_description = await this.peer.createAnswer()
+        await this.peer.setLocalDescription(answer_description)
+        const answer = { type: answer_description.type, sdp: answer_description.sdp }
+        log("webrtc", "sent answer", answer)
+        this.room.websocket_send({ receiver: this.name, answer })
+    }
+    async on_answer(answer: RTCSessionDescriptionInit) {
+        log("webrtc", "got answer", answer)
+        const answer_description = new RTCSessionDescription(answer)
+        await this.peer.setRemoteDescription(answer_description)
+    }
+
+    add_ice_candidate(candidate: RTCIceCandidateInit) {
+        this.peer.addIceCandidate(new RTCIceCandidate(candidate))
+    }
+
+    leave() {
+        this.peer.close()
+        this.room.el.removeChild(this.el)
+    }
+}
\ No newline at end of file
-- 
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