78 lines
2.0 KiB
TypeScript
78 lines
2.0 KiB
TypeScript
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import { rtcConfig } from 'config/rtcConfig'
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import { parseCandidate } from 'sdp'
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export enum ConnectionTestEvents {
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CONNECTION_TEST_RESULTS_UPDATED = 'CONNECTION_TEST_RESULTS_UPDATED',
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HAS_HOST_CHANGED = 'HAS_HOST_CHANGED',
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HAS_RELAY_CHANGED = 'HAS_RELAY_CHANGED',
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}
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export type ConnectionTestEvent = CustomEvent<ConnectionTest>
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export class ConnectionTest extends EventTarget {
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hasHost = false
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hasRelay = false
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hasPeerReflexive = false
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hasServerReflexive = false
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async runRtcPeerConnectionTest() {
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if (typeof RTCPeerConnection === 'undefined') return
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const { iceServers } = rtcConfig
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const rtcPeerConnection = new RTCPeerConnection({
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iceServers,
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})
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rtcPeerConnection.addEventListener('icecandidate', event => {
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if (event.candidate?.candidate.length) {
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const parsedCandidate = parseCandidate(event.candidate.candidate)
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let eventType: ConnectionTestEvents | undefined
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switch (parsedCandidate.type) {
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case 'host':
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this.hasHost = true
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eventType = ConnectionTestEvents.HAS_HOST_CHANGED
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break
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case 'relay':
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this.hasRelay = true
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eventType = ConnectionTestEvents.HAS_RELAY_CHANGED
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break
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case 'prflx':
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this.hasPeerReflexive = true
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break
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case 'srflx':
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this.hasServerReflexive = true
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break
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}
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if (typeof eventType !== 'undefined') {
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this.dispatchEvent(
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new CustomEvent(eventType, {
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detail: this,
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})
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)
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}
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this.dispatchEvent(
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new Event(ConnectionTestEvents.CONNECTION_TEST_RESULTS_UPDATED)
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)
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}
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})
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// Kick off the connection test
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try {
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const rtcSessionDescription = await rtcPeerConnection.createOffer({
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offerToReceiveAudio: true,
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})
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rtcPeerConnection.setLocalDescription(rtcSessionDescription)
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} catch (e) {}
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}
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}
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export const connectionTest = new ConnectionTest()
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