feat: [closes #20] Video support (#64)

* refactor: nest ChatTranscript
* feat: set up video controls
* feat: show self video
* feat: show peer video
* feat: improve audio/video controls display
* feat: flip self video
* feat: improve device selection labels

src/components/Room/PeerVideo.tsx

@@ -0,0 +1,52 @@
+import { useEffect, useRef } from 'react'
+import Paper from '@mui/material/Paper'
+
+import { PeerNameDisplay } from 'components/PeerNameDisplay'
+
+interface PeerVideoProps {
+  isSelf?: boolean
+  userId: string
+  videoStream: MediaStream
+}
+
+export const PeerVideo = ({ isSelf, userId, videoStream }: PeerVideoProps) => {
+  const videoRef = useRef<HTMLVideoElement>(null)
+
+  useEffect(() => {
+    const { current: video } = videoRef
+    if (!video) return
+
+    video.autoplay = true
+    video.srcObject = videoStream
+  }, [videoRef, videoStream])
+
+  return (
+    <Paper
+      sx={{
+        py: 2,
+        margin: '0.5em',
+        flexShrink: 1,
+        overflow: 'auto',
+        display: 'flex',
+        flexDirection: 'column',
+      }}
+      elevation={10}
+    >
+      <video
+        playsInline
+        ref={videoRef}
+        style={{
+          borderRadius: '1.25em',
+          overflow: 'auto',
+          padding: '1em',
+          ...(isSelf && {
+            transform: 'rotateY(180deg)',
+          }),
+        }}
+      />
+      <PeerNameDisplay sx={{ textAlign: 'center', display: 'block' }}>
+        {userId}
+      </PeerNameDisplay>
+    </Paper>
+  )
+}

src/components/Room/Room.tsx

@@ -13,6 +13,8 @@ import { ChatTranscript } from 'components/ChatTranscript'
 
 import { useRoom } from './useRoom'
 import { RoomAudioControls } from './RoomAudioControls'
+import { RoomVideoControls } from './RoomVideoControls'
+import { RoomVideoDisplay } from './RoomVideoDisplay'
 
 export interface RoomProps {
   appId?: string
@@ -29,7 +31,13 @@ export function Room({
   password,
   userId,
 }: RoomProps) {
-  const { messageLog, peerRoom, sendMessage, isMessageSending } = useRoom(
+  const {
+    isMessageSending,
+    messageLog,
+    peerRoom,
+    sendMessage,
+    showVideoDisplay,
+  } = useRoom(
     {
       appId,
       trackerUrls,
@@ -52,8 +60,18 @@ export function Room({
       className="Room"
       sx={{
         height: '100%',
+        display: 'flex',
+        flexGrow: '1',
+        overflow: 'auto',
+      }}
+    >
+      {showVideoDisplay && <RoomVideoDisplay userId={userId} />}
+      <Box
+        sx={{
           display: 'flex',
           flexDirection: 'column',
+          flexGrow: '1',
+          overflow: 'auto',
         }}
       >
         <Accordion>
@@ -65,13 +83,13 @@ export function Room({
           <AccordionDetails>
             <Box
               sx={{
-              alignItems: 'center',
+                alignItems: 'flex-start',
                 display: 'flex',
-              flexDirection: 'column',
                 justifyContent: 'center',
               }}
             >
               <RoomAudioControls peerRoom={peerRoom} />
+              <RoomVideoControls peerRoom={peerRoom} />
             </Box>
           </AccordionDetails>
         </Accordion>
@@ -86,5 +104,6 @@ export function Room({
           isMessageSending={isMessageSending}
         />
       </Box>
+    </Box>
   )
 }

src/components/Room/RoomAudioControls.tsx

@@ -8,6 +8,7 @@ import ListItemText from '@mui/material/ListItemText'
 import Menu from '@mui/material/Menu'
 import MenuItem from '@mui/material/MenuItem'
 import Fab from '@mui/material/Fab'
+import Tooltip from '@mui/material/Tooltip'
 
 import { PeerRoom } from 'services/PeerRoom/PeerRoom'
 
@@ -53,30 +54,35 @@ export function RoomAudioControls({ peerRoom }: RoomAudioControlsProps) {
   }
 
   return (
-    <>
+    <Box
+      sx={{
+        alignItems: 'center',
+        display: 'flex',
+        flexDirection: 'column',
+        justifyContent: 'center',
+        px: 1,
+      }}
+    >
+      <Tooltip
+        title={
+          isSpeakingToRoom
+            ? 'Turn off microphone'
+            : 'Turn on microphone and speak to room'
+        }
+      >
         <Fab
-        variant="extended"
           color={isSpeakingToRoom ? 'error' : 'success'}
           aria-label="call"
           onClick={handleVoiceCallClick}
         >
-        {isSpeakingToRoom ? (
-          <>
-            <VoiceOverOff sx={{ mr: 1 }} />
-            Stop speaking to room
-          </>
-        ) : (
-          <>
-            <RecordVoiceOver sx={{ mr: 1 }} />
-            Start speaking to room
-          </>
-        )}
+          {isSpeakingToRoom ? <VoiceOverOff /> : <RecordVoiceOver />}
         </Fab>
+      </Tooltip>
       {audioDevices.length > 0 && (
         <Box sx={{ mt: 1 }}>
           <List
             component="nav"
-            aria-label="Audio device selection"
+            aria-label="Microphone selection"
             sx={{ bgcolor: 'background.paper' }}
           >
             <ListItem
@@ -84,12 +90,12 @@ export function RoomAudioControls({ peerRoom }: RoomAudioControlsProps) {
               id="audio-input-select-button"
               aria-haspopup="listbox"
               aria-controls="audio-input-select-menu"
-              aria-label="Audio input device to use"
+              aria-label="Microphone to use"
               aria-expanded={isAudioDeviceSelectOpen ? 'true' : undefined}
               onClick={handleAudioDeviceListItemClick}
             >
               <ListItemText
-                primary="Selected audio input device"
+                primary="Selected microphone"
                 secondary={audioDevices[selectedAudioDeviceIdx]?.label}
               />
             </ListItem>
@@ -116,6 +122,6 @@ export function RoomAudioControls({ peerRoom }: RoomAudioControlsProps) {
           </Menu>
         </Box>
       )}
-    </>
+    </Box>
   )
 }

src/components/Room/RoomVideoControls.tsx

@@ -0,0 +1,121 @@
+import { useState } from 'react'
+import Box from '@mui/material/Box'
+import Videocam from '@mui/icons-material/Videocam'
+import VideocamOff from '@mui/icons-material/VideocamOff'
+import List from '@mui/material/List'
+import ListItem from '@mui/material/ListItem'
+import ListItemText from '@mui/material/ListItemText'
+import Menu from '@mui/material/Menu'
+import MenuItem from '@mui/material/MenuItem'
+import Fab from '@mui/material/Fab'
+import Tooltip from '@mui/material/Tooltip'
+
+import { PeerRoom } from 'services/PeerRoom/PeerRoom'
+
+import { useRoomVideo } from './useRoomVideo'
+
+export interface RoomVideoControlsProps {
+  peerRoom: PeerRoom
+}
+
+export function RoomVideoControls({ peerRoom }: RoomVideoControlsProps) {
+  const {
+    videoDevices,
+    isCameraEnabled,
+    setIsCameraEnabled,
+    handleVideoDeviceSelect,
+  } = useRoomVideo({ peerRoom })
+
+  const [videoAnchorEl, setVideoAnchorEl] = useState<null | HTMLElement>(null)
+  const isVideoDeviceSelectOpen = Boolean(videoAnchorEl)
+  const [selectedVideoDeviceIdx, setSelectedVideoDeviceIdx] = useState(0)
+
+  const handleEnableCameraClick = () => {
+    setIsCameraEnabled(!isCameraEnabled)
+  }
+
+  const handleVideoDeviceListItemClick = (
+    event: React.MouseEvent<HTMLElement>
+  ) => {
+    setVideoAnchorEl(event.currentTarget)
+  }
+
+  const handleVideoDeviceMenuItemClick = (
+    _event: React.MouseEvent<HTMLElement>,
+    idx: number
+  ) => {
+    setSelectedVideoDeviceIdx(idx)
+    handleVideoDeviceSelect(videoDevices[idx])
+    setVideoAnchorEl(null)
+  }
+
+  const handleVideoInputSelectMenuClose = () => {
+    setVideoAnchorEl(null)
+  }
+
+  return (
+    <Box
+      sx={{
+        alignItems: 'center',
+        display: 'flex',
+        flexDirection: 'column',
+        justifyContent: 'center',
+        px: 1,
+      }}
+    >
+      <Tooltip title={isCameraEnabled ? 'Turn off camera' : 'Turn on camera'}>
+        <Fab
+          color={isCameraEnabled ? 'error' : 'success'}
+          aria-label="call"
+          onClick={handleEnableCameraClick}
+        >
+          {isCameraEnabled ? <VideocamOff /> : <Videocam />}
+        </Fab>
+      </Tooltip>
+      {videoDevices.length > 0 && (
+        <Box sx={{ mt: 1 }}>
+          <List
+            component="nav"
+            aria-label="Camera selection"
+            sx={{ bgcolor: 'background.paper' }}
+          >
+            <ListItem
+              button
+              id="video-input-select-button"
+              aria-haspopup="listbox"
+              aria-controls="video-input-select-menu"
+              aria-label="Camera to use"
+              aria-expanded={isVideoDeviceSelectOpen ? 'true' : undefined}
+              onClick={handleVideoDeviceListItemClick}
+            >
+              <ListItemText
+                primary="Selected camera"
+                secondary={videoDevices[selectedVideoDeviceIdx]?.label}
+              />
+            </ListItem>
+          </List>
+          <Menu
+            id="video-input-select-menu"
+            anchorEl={videoAnchorEl}
+            open={isVideoDeviceSelectOpen}
+            onClose={handleVideoInputSelectMenuClose}
+            MenuListProps={{
+              'aria-labelledby': 'video-input-select-button',
+              role: 'listbox',
+            }}
+          >
+            {videoDevices.map((videoDevice, idx) => (
+              <MenuItem
+                key={videoDevice.deviceId}
+                selected={idx === selectedVideoDeviceIdx}
+                onClick={event => handleVideoDeviceMenuItemClick(event, idx)}
+              >
+                {videoDevice.label}
+              </MenuItem>
+            ))}
+          </Menu>
+        </Box>
+      )}
+    </Box>
+  )
+}

src/components/Room/RoomVideoDisplay.tsx

@@ -0,0 +1,64 @@
+import { useContext } from 'react'
+import Paper from '@mui/material/Paper'
+
+import { Peer } from 'models/chat'
+import { ShellContext } from 'contexts/ShellContext'
+
+import { PeerVideo } from './PeerVideo'
+
+type PeerWithVideo = { peer: Peer; videoStream: MediaStream }
+
+export interface RoomVideoDisplayProps {
+  userId: string
+}
+
+export const RoomVideoDisplay = ({ userId }: RoomVideoDisplayProps) => {
+  const shellContext = useContext(ShellContext)
+
+  const peersWithVideo: PeerWithVideo[] = shellContext.peerList.reduce(
+    (acc: PeerWithVideo[], peer: Peer) => {
+      const videoStream = shellContext.peerVideoStreams[peer.peerId]
+      if (videoStream) {
+        acc.push({
+          peer,
+          videoStream,
+        })
+      }
+
+      return acc
+    },
+    []
+  )
+
+  return (
+    <Paper
+      className="RoomVideoDisplay"
+      elevation={3}
+      square
+      sx={{
+        alignItems: 'stretch',
+        display: 'flex',
+        flexDirection: 'column',
+        flexGrow: 1,
+        justifyContent: 'center',
+        overflow: 'auto',
+        width: '75%',
+      }}
+    >
+      {shellContext.selfVideoStream && (
+        <PeerVideo
+          isSelf
+          userId={userId}
+          videoStream={shellContext.selfVideoStream}
+        />
+      )}
+      {peersWithVideo.map(peerWithVideo => (
+        <PeerVideo
+          key={peerWithVideo.peer.peerId}
+          userId={peerWithVideo.peer.userId}
+          videoStream={peerWithVideo.videoStream}
+        />
+      ))}
+    </Paper>
+  )
+}

src/components/Room/useRoom.ts

@@ -11,6 +11,7 @@ import {
   Message,
   ReceivedMessage,
   UnsentMessage,
+  VideoState,
   isMessageReceived,
 } from 'models/chat'
 import { funAnimalName } from 'fun-animal-names'
@@ -39,8 +40,6 @@ export function useRoom(
     () => new PeerRoom({ password: password ?? roomId, ...roomConfig }, roomId)
   )
 
-  peerRoom.flush()
-
   const [numberOfPeers, setNumberOfPeers] = useState(1) // Includes this peer
   const shellContext = useContext(ShellContext)
   const settingsContext = useContext(SettingsContext)
@@ -110,7 +109,12 @@ export function useRoom(
     if (peerIndex === -1) {
       shellContext.setPeerList([
         ...shellContext.peerList,
-        { peerId: peerId, userId: userId, audioState: AudioState.STOPPED },
+        {
+          peerId,
+          userId,
+          audioState: AudioState.STOPPED,
+          videoState: VideoState.STOPPED,
+        },
       ])
     } else {
       const newPeerList = [...shellContext.peerList]
@@ -195,10 +199,15 @@ export function useRoom(
     }
   })
 
+  const showVideoDisplay =
+    shellContext.selfVideoStream ||
+    Object.values(shellContext.peerVideoStreams).length > 0
+
   return {
-    peerRoom,
-    messageLog,
-    sendMessage,
     isMessageSending,
+    messageLog,
+    peerRoom,
+    sendMessage,
+    showVideoDisplay,
   }
 }

src/components/Room/useRoomAudio.ts

@@ -58,6 +58,10 @@ export function useRoomAudio({ peerRoom }: UseRoomAudioConfig) {
   })
 
   peerRoom.onPeerStream(PeerStreamType.AUDIO, (stream, peerId) => {
+    const audioTracks = stream.getAudioTracks()
+
+    if (audioTracks.length === 0) return
+
     const audio = new Audio()
     audio.srcObject = stream
     audio.autoplay = true

src/components/Room/useRoomVideo.ts

@@ -0,0 +1,230 @@
+import { useContext, useEffect, useCallback, useState } from 'react'
+
+import { ShellContext } from 'contexts/ShellContext'
+import { PeerActions } from 'models/network'
+import { VideoState, Peer } from 'models/chat'
+import { PeerRoom, PeerHookType, PeerStreamType } from 'services/PeerRoom'
+
+import { usePeerRoomAction } from './usePeerRoomAction'
+
+interface UseRoomVideoConfig {
+  peerRoom: PeerRoom
+}
+
+export function useRoomVideo({ peerRoom }: UseRoomVideoConfig) {
+  const shellContext = useContext(ShellContext)
+  const [isCameraEnabled, setIsCameraEnabled] = useState(false)
+  const [videoDevices, setVideoDevices] = useState<MediaDeviceInfo[]>([])
+  const [selectedVideoDeviceId, setSelectedVideoDeviceId] = useState<
+    string | null
+  >(null)
+
+  const {
+    peerList,
+    peerVideoStreams,
+    selfVideoStream,
+    setPeerList,
+    setPeerVideoStreams,
+    setSelfVideoStream,
+    setVideoState,
+  } = shellContext
+
+  useEffect(() => {
+    ;(async () => {
+      if (!selfVideoStream) return
+
+      const devices = await window.navigator.mediaDevices.enumerateDevices()
+      const rawVideoDevices = devices.filter(
+        ({ kind }) => kind === 'videoinput'
+      )
+
+      // Sometimes duplicate devices are provided by enumerateDevices, so
+      // dedupe them by ID.
+      const newVideoDevices = [
+        ...rawVideoDevices
+          .reduce((acc, videoDevice) => {
+            return acc.set(videoDevice.deviceId, videoDevice)
+          }, new Map<string, MediaDeviceInfo>())
+          .values(),
+      ]
+
+      setVideoDevices(newVideoDevices)
+
+      if (newVideoDevices.length > 0 && !selfVideoStream) {
+        const [firstVideoDevice] = newVideoDevices
+        const newSelfStream = await navigator.mediaDevices.getUserMedia({
+          audio: false,
+          video: {
+            deviceId: firstVideoDevice.deviceId,
+          },
+        })
+
+        peerRoom.addStream(newSelfStream)
+        setSelfVideoStream(newSelfStream)
+
+        setSelfVideoStream(newSelfStream)
+      }
+    })()
+  }, [peerRoom, selfVideoStream, setSelfVideoStream])
+
+  const [sendVideoChange, receiveVideoChange] = usePeerRoomAction<VideoState>(
+    peerRoom,
+    PeerActions.VIDEO_CHANGE
+  )
+
+  receiveVideoChange((videoState, peerId) => {
+    const newPeerList = peerList.map(peer => {
+      const newPeer: Peer = { ...peer }
+
+      if (peer.peerId === peerId) {
+        newPeer.videoState = videoState
+
+        if (videoState === VideoState.STOPPED) {
+          deletePeerVideo(peerId)
+        }
+      }
+
+      return newPeer
+    })
+
+    setPeerList(newPeerList)
+  })
+
+  peerRoom.onPeerStream(PeerStreamType.VIDEO, (stream, peerId) => {
+    const videoTracks = stream.getVideoTracks()
+
+    if (videoTracks.length === 0) return
+
+    setPeerVideoStreams({
+      ...peerVideoStreams,
+      [peerId]: stream,
+    })
+  })
+
+  const cleanupVideo = useCallback(() => {
+    if (!selfVideoStream) return
+
+    for (const videoTrack of selfVideoStream.getTracks()) {
+      videoTrack.stop()
+      selfVideoStream.removeTrack(videoTrack)
+    }
+  }, [selfVideoStream])
+
+  useEffect(() => {
+    ;(async () => {
+      if (isCameraEnabled) {
+        if (!selfVideoStream) {
+          const newSelfStream = await navigator.mediaDevices.getUserMedia({
+            audio: false,
+            video: selectedVideoDeviceId
+              ? { deviceId: selectedVideoDeviceId }
+              : true,
+          })
+
+          peerRoom.addStream(newSelfStream)
+          sendVideoChange(VideoState.PLAYING)
+          setVideoState(VideoState.PLAYING)
+          setSelfVideoStream(newSelfStream)
+        }
+      } else {
+        if (selfVideoStream) {
+          cleanupVideo()
+
+          peerRoom.removeStream(selfVideoStream, peerRoom.getPeers())
+          sendVideoChange(VideoState.STOPPED)
+          setVideoState(VideoState.STOPPED)
+          setSelfVideoStream(null)
+          setSelfVideoStream(null)
+        }
+      }
+    })()
+  }, [
+    isCameraEnabled,
+    peerRoom,
+    selfVideoStream,
+    selectedVideoDeviceId,
+    sendVideoChange,
+    cleanupVideo,
+    setSelfVideoStream,
+    setVideoState,
+  ])
+
+  useEffect(() => {
+    return () => {
+      cleanupVideo()
+    }
+  }, [cleanupVideo])
+
+  useEffect(() => {
+    return () => {
+      if (selfVideoStream) {
+        setSelfVideoStream(null)
+        setVideoState(VideoState.STOPPED)
+      }
+    }
+  }, [selfVideoStream, setSelfVideoStream, setVideoState])
+
+  useEffect(() => {
+    return () => {
+      setPeerVideoStreams({})
+    }
+  }, [setPeerVideoStreams])
+
+  const handleVideoDeviceSelect = async (videoDevice: MediaDeviceInfo) => {
+    const { deviceId } = videoDevice
+    setSelectedVideoDeviceId(deviceId)
+
+    if (!selfVideoStream) return
+
+    for (const videoTrack of selfVideoStream.getTracks()) {
+      videoTrack.stop()
+      selfVideoStream.removeTrack(videoTrack)
+    }
+
+    peerRoom.removeStream(selfVideoStream, peerRoom.getPeers())
+
+    const newSelfStream = await navigator.mediaDevices.getUserMedia({
+      audio: false,
+      video: {
+        deviceId,
+      },
+    })
+
+    peerRoom.addStream(newSelfStream)
+    setSelfVideoStream(newSelfStream)
+  }
+
+  const deletePeerVideo = (peerId: string) => {
+    const newPeerVideos = { ...peerVideoStreams }
+    delete newPeerVideos[peerId]
+    setPeerVideoStreams(newPeerVideos)
+  }
+
+  const handleVideoForNewPeer = (peerId: string) => {
+    if (selfVideoStream) {
+      peerRoom.addStream(selfVideoStream, peerId)
+    }
+  }
+
+  const handleVideoForLeavingPeer = (peerId: string) => {
+    if (selfVideoStream) {
+      peerRoom.removeStream(selfVideoStream, peerId)
+      deletePeerVideo(peerId)
+    }
+  }
+
+  peerRoom.onPeerJoin(PeerHookType.VIDEO, (peerId: string) => {
+    handleVideoForNewPeer(peerId)
+  })
+
+  peerRoom.onPeerLeave(PeerHookType.VIDEO, (peerId: string) => {
+    handleVideoForLeavingPeer(peerId)
+  })
+
+  return {
+    videoDevices,
+    isCameraEnabled,
+    setIsCameraEnabled,
+    handleVideoDeviceSelect,
+  }
+}

src/components/Shell/Shell.tsx

@@ -15,7 +15,7 @@ import { AlertColor } from '@mui/material/Alert'
 import { ShellContext } from 'contexts/ShellContext'
 import { SettingsContext } from 'contexts/SettingsContext'
 import { AlertOptions } from 'models/shell'
-import { AudioState, Peer } from 'models/chat'
+import { AudioState, VideoState, Peer } from 'models/chat'
 import { ErrorBoundary } from 'components/ErrorBoundary'
 
 import { Drawer } from './Drawer'
@@ -45,6 +45,13 @@ export const Shell = ({ appNeedsUpdate, children, userPeerId }: ShellProps) => {
   const [peerList, setPeerList] = useState<Peer[]>([]) // except you
   const [tabHasFocus, setTabHasFocus] = useState(true)
   const [audioState, setAudioState] = useState<AudioState>(AudioState.STOPPED)
+  const [videoState, setVideoState] = useState<VideoState>(VideoState.STOPPED)
+  const [selfVideoStream, setSelfVideoStream] = useState<MediaStream | null>(
+    null
+  )
+  const [peerVideoStreams, setPeerVideoStreams] = useState<
+    Record<string, MediaStream>
+  >({})
 
   const showAlert = useCallback<
     (message: string, options?: AlertOptions) => void
@@ -69,6 +76,12 @@ export const Shell = ({ appNeedsUpdate, children, userPeerId }: ShellProps) => {
       setPeerList,
       audioState,
       setAudioState,
+      videoState,
+      setVideoState,
+      selfVideoStream,
+      setSelfVideoStream,
+      peerVideoStreams,
+      setPeerVideoStreams,
     }),
     [
       isPeerListOpen,
@@ -82,6 +95,12 @@ export const Shell = ({ appNeedsUpdate, children, userPeerId }: ShellProps) => {
       showAlert,
       audioState,
       setAudioState,
+      videoState,
+      setVideoState,
+      selfVideoStream,
+      setSelfVideoStream,
+      peerVideoStreams,
+      setPeerVideoStreams,
     ]
   )
 

src/contexts/ShellContext.ts

@@ -1,7 +1,7 @@
 import { createContext, Dispatch, SetStateAction } from 'react'
 
 import { AlertOptions } from 'models/shell'
-import { AudioState, Peer } from 'models/chat'
+import { AudioState, VideoState, Peer } from 'models/chat'
 
 interface ShellContextProps {
   numberOfPeers: number
@@ -16,6 +16,12 @@ interface ShellContextProps {
   setPeerList: Dispatch<SetStateAction<Peer[]>>
   audioState: AudioState
   setAudioState: Dispatch<SetStateAction<AudioState>>
+  videoState: VideoState
+  setVideoState: Dispatch<SetStateAction<VideoState>>
+  selfVideoStream: MediaStream | null
+  setSelfVideoStream: Dispatch<SetStateAction<MediaStream | null>>
+  peerVideoStreams: Record<string, MediaStream>
+  setPeerVideoStreams: Dispatch<SetStateAction<Record<string, MediaStream>>>
 }
 
 export const ShellContext = createContext<ShellContextProps>({
@@ -31,4 +37,10 @@ export const ShellContext = createContext<ShellContextProps>({
   setPeerList: () => {},
   audioState: AudioState.STOPPED,
   setAudioState: () => {},
+  videoState: VideoState.STOPPED,
+  setVideoState: () => {},
+  selfVideoStream: null,
+  setSelfVideoStream: () => {},
+  peerVideoStreams: {},
+  setPeerVideoStreams: () => {},
 })

src/models/chat.ts

@@ -10,10 +10,16 @@ export enum AudioState {
   STOPPED = 'STOPPED',
 }
 
+export enum VideoState {
+  PLAYING = 'PLAYING',
+  STOPPED = 'STOPPED',
+}
+
 export interface Peer {
   peerId: string
   userId: string
   audioState: AudioState
+  videoState: VideoState
 }
 
 export interface ReceivedMessage extends UnsentMessage {

src/models/network.ts

@@ -4,4 +4,5 @@ export enum PeerActions {
   MESSAGE_TRANSCRIPT = 'MSG_XSCRIPT',
   PEER_NAME = 'PEER_NAME',
   AUDIO_CHANGE = 'AUDIO_CHANGE',
+  VIDEO_CHANGE = 'VIDEO_CHANGE',
 }

src/services/PeerRoom/PeerRoom.ts

@@ -4,10 +4,12 @@ import { TorrentRoomConfig } from 'trystero/torrent'
 export enum PeerHookType {
   NEW_PEER = 'NEW_PEER',
   AUDIO = 'AUDIO',
+  VIDEO = 'VIDEO',
 }
 
 export enum PeerStreamType {
   AUDIO = 'AUDIO',
+  VIDEO = 'VIDEO',
 }
 
 export class PeerRoom {