104 lines
2.5 KiB
JavaScript
104 lines
2.5 KiB
JavaScript
/* eslint-env browser */
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import React, { useState, useEffect, createRef } from 'react'
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import cytoscape from 'cytoscape'
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import euler from 'cytoscape-euler'
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import { layout, style } from '../libs/viz'
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function Graph ({
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graphRoot
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}) {
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return (
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<div ref={graphRoot} className='bg-snow-muted h-100' />
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)
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}
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export default function Metrics ({
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libp2p,
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eventBus
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}) {
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const [listening, setListening] = useState(false)
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const [peerCount, setPeerCount] = useState(0)
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const [stats, setStats] = useState(new Map())
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const _graphRoot = createRef()
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cytoscape.use(euler)
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/**
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* Leverage use effect to act on state changes
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*/
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useEffect(() => {
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// Wait for libp2p
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if (!libp2p) return
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// Set up listeners for setting metrics
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if (!listening) {
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eventBus.on('stats', (stats) => {
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setStats(stats)
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})
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libp2p.peerStore.on('peer', (peerId) => {
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const num = libp2p.peerStore.peers.size
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setPeerCount(num)
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})
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setListening(true)
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return
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}
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const nodes = {}
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const edges = []
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Array.from(stats).forEach(([peerId, stat], index) => {
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let { connectedPeers, nodeType } = stat
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if (peerId === libp2p.peerId.toB58String()) {
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nodeType = 'me'
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}
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const classname = `node-type-${nodeType}`
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nodes[peerId] = {
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data: { id: peerId },
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classes: classname
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}
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connectedPeers.forEach(peer => {
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peer = peer.toString()
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if (!nodes[peer]) {
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nodes[peer] = {
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data: { id: peer }
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}
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}
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edges.push({
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data: {
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id: `${peerId}-${peer}`,
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source: peerId,
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target: peer
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}
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})
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})
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})
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const cy = cytoscape({
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elements: [
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...Object.values(nodes),
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...edges
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],
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container: _graphRoot.current,
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style
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})
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cy.layout(layout).run()
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})
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return (
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<div className='flex flex-column w-50 pa3 h-100'>
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<div className='dt dt--fixed w-100'>
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<p className='dtc'><span className='dot bg-libp2p-dark-purple' /> Me</p>
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<p className='dtc'><span className='dot bg-libp2p-dark-aqua' /> Go</p>
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<p className='dtc'><span className='dot bg-libp2p-dark-orange' /> Browser</p>
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<p className='dtc'><span className='dot bg-libp2p-dark-green' /> Node.js</p>
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<p className='dtc'><span className='dot' /> Unknown</p>
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</div>
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<h3>Peers Known: {peerCount}</h3>
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<Graph graphRoot={_graphRoot} />
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</div>
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)
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}
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