create component "NetworkIndicator"

add to VideoView for Me,
receive data from server / getTransportStats,
estimate of connection/value [wip]
show recv/send bitrate in advanced mode

app/package.json

@@ -32,6 +32,7 @@
 		"react-router-dom": "^5.1.2",
 		"react-scripts": "3.4.1",
 		"react-wakelock-react16": "0.0.7",
+		"react-wifi-indicator": "^1.0.1",
 		"redux": "^4.0.4",
 		"redux-logger": "^3.0.6",
 		"redux-persist": "^6.0.0",

app/src/RoomClient.js

@@ -257,6 +257,7 @@ export default class RoomClient
 		this._startKeyListener();
 
 		this._startDevicesListener();
+
 	}
 
 	close()
@@ -594,6 +595,21 @@ export default class RoomClient
 		});
 	}
 
+	async getTransportStats(transportId)
+	{
+
+		logger.debug('getTransportStats() [transportId: "%s"]', transportId);
+
+		try
+		{
+			return await this.sendRequest('getTransportStats', { transportId: transportId });
+		}
+		catch (error)
+		{ 
+			logger.error('getTransportStats() | failed: %o', error);
+		} 
+	}
+
 	async changeDisplayName(displayName)
 	{
 		logger.debug('changeDisplayName() [displayName:"%s"]', displayName);
@@ -1959,6 +1975,7 @@ export default class RoomClient
 			{
 				switch (notification.method)
 				{
+
 					case 'enteredLobby':
 					{
 						store.dispatch(roomActions.setInLobby(true));

app/src/components/Controls/NetworkIndicator.js

@@ -0,0 +1,259 @@
+import React from 'react';
+import { connect } from 'react-redux';
+import PropTypes from 'prop-types';
+import {
+	peersLengthSelector
+} from '../Selectors';
+import * as appPropTypes from '../appPropTypes';
+import { withRoomContext } from '../../RoomContext';
+import { withStyles } from '@material-ui/core/styles';
+import WifiIndicator from 'react-wifi-indicator';
+import Logger from '../../Logger';
+
+const logger = new Logger('NetworkIndicator');
+
+const styles = () =>
+	({
+		root : {
+			verticalAlign : 'middle',
+			'& img'       : {
+				display : 'inline',
+				width   : '1.7em',
+				height  : '1.7em',
+				margin  : '10px'
+			}
+		},
+
+		label : {
+			color : 'white'
+		},
+
+		strength :
+		{
+			margin  : 0,
+			padding : 0
+		}
+
+	});
+
+class NetworkIndicator extends React.Component 
+{
+	constructor(props) 
+	{
+		super(props);
+
+		this.state = {
+			strengthScale : {
+				1 : 'EXCELLENT',
+				2 : 'GREAT',
+				3 : 'OKAY',
+				4 : 'WEAK',
+				5 : 'UNUSABLE',
+				6 : 'DISCONNECTED'
+			},
+			strength    : 6,
+			bitrate     : null,
+			recv        : {},
+			send        : {},
+			probe       : [],
+			currBitrate : 0,
+			maxBitrate  : 0,
+			avgBitrate  : 0,
+			medBitrate  : 0
+		};
+	}
+
+	// const intl = useIntl();
+	async handleUpdateStrength() 
+	{
+		// if (this.props.peersLength == 0) 
+		// {
+
+		const percent = this.state.percent;
+
+		logger.warn('[percent: "%s"]', percent);
+		
+		switch (true)
+		{
+			case (percent <= 20):
+
+				await this.setState({ strength: 5 });
+				break;
+
+			case (percent <= 40):
+
+				await this.setState({ strength: 4 });
+				break;
+
+			case (percent <= 60):
+
+				await this.setState({ strength: 3 });
+				break;
+
+			case (percent <= 80):
+
+				await this.setState({ strength: 2 });
+				break;
+
+			case (percent <= 100):
+
+				await this.setState({ strength: 1 });
+				break;
+
+			default:
+				break;
+		}
+
+		// }
+		// else 
+		// { 
+		// this.setState({ strength: 6 });
+		// }
+	}
+
+	async handleGetData() 
+	{
+		const rc = this.props.roomClient;
+
+		const recv = await rc.getTransportStats(rc._recvTransport.id);
+
+		const send = await rc.getTransportStats(rc._sendTransport.id);
+
+		// current
+		const currBitrate = Math.round(send[0].recvBitrate / 1024 / 8); // in kb
+
+		// probe
+		const probe = [ ...this.state.probe ]; // clone
+
+		const sec = new Date().getSeconds()
+			.toString()
+			.split('')
+			.map(Number)[1];
+
+		probe[sec] = currBitrate; // add/update next element
+
+		// median
+		const med = (arr) =>
+		{
+			const mid = Math.floor(arr.length / 2);
+			const nums = [ ...arr ].sort((a, b) => a - b);
+            
+			return arr.length % 2 !== 0 ? nums[mid] : (nums[mid - 1] + nums[mid]) / 2;
+		};
+
+		const medBitrate = med([ ...probe ]);
+		
+		// maximum
+		let maxBitrate = Math.max(...probe);
+
+		maxBitrate = (currBitrate > maxBitrate) ? currBitrate : maxBitrate; 
+
+		// average
+		const avgBitrate = [ ...probe ]
+			.map((x, i, avgBitrate) => x/avgBitrate.length)
+			.reduce((a, b) => a + b);
+
+		const percent = 
+			await Math.round(this.state.currBitrate / this.state.medBitrate * 100); 
+
+		this.setState({ 
+			recv : recv[0], 
+			send : send[0], 
+			probe,
+			currBitrate,
+			maxBitrate,
+			avgBitrate,
+			medBitrate,
+			percent
+		});
+
+		logger.warn('[currBitrate: "%s"]', currBitrate);
+		logger.warn('[maxBitrate: "%s"]', maxBitrate);
+		logger.warn('[medBitrate: "%s"]', medBitrate);
+		logger.warn('[avgBitrate: "%s"]', avgBitrate);
+	}
+
+	componentDidMount()
+	{
+		this.update = setInterval(async () => 
+		{
+			await this.handleGetData();
+			await this.handleUpdateStrength();
+		}, 1000);
+	}
+
+	componentWillUnmount() 
+	{
+		clearInterval(this.update);
+	}
+
+	render() 
+	{
+		const {
+			classes,
+			advancedMode
+		} = this.props;
+
+		return ( 
+			<React.Fragment>
+				<span className={classes.root}>
+					<WifiIndicator 
+						strength={this.state.strengthScale[this.state.strength]} 
+					/>
+				</span>
+
+				{advancedMode &&
+					<span className={classes.label}>
+						{/* rr:{ Math.round(this.state.recv.recvBitrate / 1024 /8) || 0}, */}
+						{ Math.round(this.state.recv.sendBitrate / 1024 /8) || 0}kb ⇙ |&nbsp;  
+						{ Math.round(this.state.send.recvBitrate / 1024 /8) || 0}kb ⇗
+						{/*	ss:{ Math.round(this.state.send.sendBitrate / 1024) /8 || 0} */}
+					</span>
+				}
+			</React.Fragment>
+		);
+	}
+}
+
+NetworkIndicator.propTypes =
+	{
+		roomClient   : PropTypes.object.isRequired,
+		room         : appPropTypes.Room.isRequired,
+		peersLength  : PropTypes.number,
+		theme        : PropTypes.object.isRequired,
+		classes      : PropTypes.object.isRequired,
+		me    				   : PropTypes.object.isRequired,
+		advancedMode : PropTypes.bool.isRequired
+	};
+
+const mapStateToProps = (state) =>
+	({
+		room         : state.room,
+		advancedMode : state.settings.advancedMode,
+		peersLength  : peersLengthSelector(state),
+		me       				: state.me
+	});
+
+const mapDispatchToProps = (dispatch) =>
+	({
+		// toggleToolArea : () =>
+		// {
+		// dispatch(toolareaActions.toggleToolArea());
+		// }
+	});
+
+export default withRoomContext(connect(
+	mapStateToProps,
+	mapDispatchToProps,
+	null,
+	{
+		areStatesEqual : (next, prev) =>
+		{
+			return (
+				prev.room === next.room &&
+				prev.peers === next.peers &&
+				prev.settings.advancedMode === next.settings.advancedMode
+			);
+		}
+	}
+)(withStyles(styles, { withTheme: true })(NetworkIndicator)));

app/src/components/VideoContainers/VideoView.js

@@ -10,6 +10,7 @@ import SignalCellular1BarIcon from '@material-ui/icons/SignalCellular1Bar';
 import SignalCellular2BarIcon from '@material-ui/icons/SignalCellular2Bar';
 import SignalCellular3BarIcon from '@material-ui/icons/SignalCellular3Bar';
 import SignalCellularAltIcon from '@material-ui/icons/SignalCellularAlt';
+import NetworkIndicator from '../Controls/NetworkIndicator';
 
 const styles = (theme) =>
 	({
@@ -267,6 +268,7 @@ class VideoView extends React.PureComponent
 						<div className={classes.peer}>
 							<div className={classes.box}>
 								{ isMe ?
+									<React.Fragment>
 										<EditableInput
 											value={displayName}
 											propName='newDisplayName'
@@ -279,8 +281,12 @@ class VideoView extends React.PureComponent
 												autoCorrect : 'off',
 												spellCheck  : false
 											}}
-										onChange={({ newDisplayName }) => onChangeDisplayName(newDisplayName)}
+											onChange={
+												({ newDisplayName }) => 
+													onChangeDisplayName(newDisplayName)}
 										/>
+										<NetworkIndicator />
+									</React.Fragment>
 									:
 									<span className={classes.displayNameStatic}>
 										{displayName}