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/* eslint-env browser */
const pc = new RTCPeerConnection({
iceServers: [{
urls: 'stun:stun.l.google.com:19302'
}]
})
const log = msg => {
document.getElementById('div').innerHTML += msg + '<br>'
}
pc.ontrack = function (event) {
const el = document.createElement(event.track.kind)
el.srcObject = event.streams[0]
el.autoplay = true
el.controls = true
document.getElementById('remoteVideos').appendChild(el)
}
pc.oniceconnectionstatechange = e => log(pc.iceConnectionState)
pc.onicecandidate = event => {
if (event.candidate === null) {
document.getElementById('localSessionDescription').value = btoa(JSON.stringify(pc.localDescription))
}
}
navigator.mediaDevices.getUserMedia({ video: true, audio: true })
.then(stream => {
document.getElementById('video1').srcObject = stream
stream.getTracks().forEach(track => pc.addTrack(track, stream))
pc.createOffer().then(d => pc.setLocalDescription(d)).catch(log)
}).catch(log)
window.startSession = () => {
const sd = document.getElementById('remoteSessionDescription').value
if (sd === '') {
return alert('Session Description must not be empty')
}
try {
pc.setRemoteDescription(JSON.parse(atob(sd)))
} catch (e) {
alert(e)
}
}
window.copySessionDescription = () => {
const browserSessionDescription = document.getElementById('localSessionDescription')
browserSessionDescription.focus()
browserSessionDescription.select()
try {
const successful = document.execCommand('copy')
const msg = successful ? 'successful' : 'unsuccessful'
log('Copying SessionDescription was ' + msg)
} catch (err) {
log('Oops, unable to copy SessionDescription ' + err)
}
}
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