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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)
}
}
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