Bluesky app fork with some witchin' additions 馃挮
1import {useEffect, useRef} from 'react'
2
3import {getCurrentState, onAppStateChange} from '#/lib/appState'
4import {useAnalytics} from '#/analytics'
5import {Features, features} from '#/analytics/features'
6import {IS_DEV, IS_TESTFLIGHT} from '#/env'
7
8/**
9 * Tracks passive analytics like app foreground/background time.
10 */
11export function PassiveAnalytics() {
12 const ax = useAnalytics()
13 const lastActive = useRef(
14 getCurrentState() === 'active' ? performance.now() : null,
15 )
16
17 useEffect(() => {
18 const sub = onAppStateChange(state => {
19 if (state === 'active') {
20 lastActive.current = performance.now()
21 ax.metric('state:foreground', {})
22 } else if (lastActive.current !== null) {
23 ax.metric('state:background', {
24 secondsActive: Math.round(
25 (performance.now() - lastActive.current) / 1e3,
26 ),
27 })
28 }
29
30 if (IS_DEV || IS_TESTFLIGHT) {
31 const feats = Object.values(Features).reduce(
32 (acc, feat) => {
33 acc[feat] = features.evalFeature(feat)
34 return acc
35 },
36 {} as Record<Features, any>,
37 )
38 ax.logger.info('FEATURES', {
39 features: feats,
40 definitions: features.getFeatures(),
41 })
42 }
43 })
44 return () => sub.remove()
45 }, [ax])
46
47 return null
48}