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Use @capacitor/App to detect foreground/background #261

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merged 3 commits into from
Sep 2, 2024
Merged

Use @capacitor/App to detect foreground/background #261

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9f98ac0
use capacitor/app for foreground-background detection
Sep 2, 2024
e93689a
Merge branch 'shocknet:main' into main
snake-eaterr Sep 2, 2024
ac1fdcd
pause health check when in background, resume when back to foreground
Sep 2, 2024
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17 changes: 7 additions & 10 deletions src/Components/Background.tsx
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Original file line number Diff line number Diff line change
Expand Up @@ -25,6 +25,7 @@ import { toast } from "react-toastify";
import Toast from "./Toast";
import { useHistory } from "react-router";
import { RemoteBackup } from "./BackgroundJobs/RemoteBackup";
import { App } from "@capacitor/app";


export const Background = () => {
Expand Down Expand Up @@ -308,19 +309,15 @@ export const Background = () => {
}, [savedAssets, nodedUp]);

useEffect(() => {

const visiblityHandler = () => {
if (document.visibilityState === "visible") {
setRefresh(Math.random())
const listener = App.addListener("appStateChange", (state) => {
if (state.isActive) {
checkClipboard();
setRefresh(Math.random());
}
checkClipboard();
}
window.addEventListener("visibilitychange", visiblityHandler)
window.addEventListener("focus", checkClipboard);
})

return () => {
window.removeEventListener("visibilitychange", visiblityHandler);
window.removeEventListener("focus", checkClipboard);
listener.remove();
};
}, [checkClipboard])

Expand Down
255 changes: 141 additions & 114 deletions src/Components/BackgroundJobs/HealthCheck.tsx
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Original file line number Diff line number Diff line change
@@ -1,132 +1,159 @@
import { useCallback, useEffect, useMemo } from "react"
import { getAllNostrClients, getNostrClient, nostrCallback, subToBeacons } from "../../Api/nostr"
import { useCallback, useEffect, useRef, useState } from "react"
import { getAllNostrClients, nostrCallback, subToBeacons } from "../../Api/nostr"
import { toast } from "react-toastify";
import Toast from "../Toast";
import { useDispatch, useSelector } from "../../State/store";
import { editPaySources } from "../../State/Slices/paySourcesSlice";
import { editSpendSources } from "../../State/Slices/spendSourcesSlice";
import { App } from "@capacitor/app";

const SubsCheckIntervalMs = 20 * 1000
const SubsThresholdMs = 10 * 1000
const BeaconMaxAgeSeconds = 2 * 60
export const HealthCheck = () => {
const paySource = useSelector(({ paySource }) => paySource)
const spendSource = useSelector(({ spendSource }) => spendSource)
const dispatch = useDispatch();
const updateSourceState = useCallback((source: string, state: { disconnected: boolean, name?: string }) => {
const payEntryId = paySource.order.find(s => s.startsWith(source))
if (payEntryId) {
const payEntry = paySource.sources[payEntryId]
let doUpdate = false
const update = { ...payEntry }
if (payEntry.disconnected !== state.disconnected) {
update.disconnected = state.disconnected
doUpdate = true
}
if (state.name && payEntry.label !== state.name) {
update.label = state.name
doUpdate = true
}
if (doUpdate) {
console.log("updating pay source", source)
dispatch({
type: editPaySources.type,
payload: update,
meta: { skipChangelog: true }
})
}
}
const spendEntryId = spendSource.order.find(s => s.startsWith(source))
if (spendEntryId) {
const spendEntry = spendSource.sources[spendEntryId]
let doUpdate = false
const update = { ...spendEntry }
if (spendEntry.disconnected !== state.disconnected) {
update.disconnected = state.disconnected
doUpdate = true
}
if (state.name && spendEntry.label !== state.name) {
update.label = state.name
doUpdate = true
}
if (doUpdate) {
console.log("updating spend source", source)
const paySource = useSelector(({ paySource }) => paySource)
const spendSource = useSelector(({ spendSource }) => spendSource)
const dispatch = useDispatch();

dispatch({
type: editSpendSources.type,
payload: update,
meta: { skipChangelog: true }
})
}
}
}, [paySource, spendSource])
const [isAppActive, setIsAppActive] = useState(true);
const intervalRef = useRef<NodeJS.Timeout | null>(null);


const checkHealth = useCallback(() => {
getAllNostrClients().forEach((wrapper) => {
const state = wrapper.getClientState()
let oldestSingleSub: nostrCallback<any> | undefined = undefined
wrapper.getSingleSubs().forEach(([_, cb]) => {
if (!oldestSingleSub || oldestSingleSub.startedAtMillis > cb.startedAtMillis) {
oldestSingleSub = cb
}
})
if (!oldestSingleSub) {
console.log("no active single subs")
return
}
const now = Date.now()
const startedAtMillis = (oldestSingleSub as nostrCallback<any>).startedAtMillis
if (now - startedAtMillis < SubsThresholdMs) {
console.log("oldest single sub is less than ", SubsThresholdMs, " seconds old")
return
}
console.log("oldest sub is", (startedAtMillis - now) / 1000, "seconds old!")
if (now - state.latestResponseAtMillis <= SubsThresholdMs) {
console.log("latest response is less than ", SubsThresholdMs, " seconds old")
return
}
console.log("latest response is more than ", SubsThresholdMs, " seconds old, checking beacon state")
wrapper.checkBeaconHealth(BeaconMaxAgeSeconds).then(beacon => {
if (!beacon) {
console.log("service is down, beacon is older than", BeaconMaxAgeSeconds, "seconds, disconnecting")
wrapper.disconnectCalls()
toast.error(<Toast title="Source Error" message={`Cannot connect to source: ${wrapper.getPubDst().slice(0, 10)}.`} />)
updateSourceState(wrapper.getPubDst(), { disconnected: true, })
return
}
updateSourceState(wrapper.getPubDst(), { disconnected: false, name: beacon.data.name })

})
})
const updateSourceState = useCallback((source: string, state: { disconnected: boolean, name?: string }) => {
const payEntryId = paySource.order.find(s => s.startsWith(source))
if (payEntryId) {
const payEntry = paySource.sources[payEntryId]
let doUpdate = false
const update = { ...payEntry }
if (payEntry.disconnected !== state.disconnected) {
update.disconnected = state.disconnected
doUpdate = true
}
if (state.name && payEntry.label !== state.name) {
update.label = state.name
doUpdate = true
}
if (doUpdate) {
console.log("updating pay source", source)
dispatch({
type: editPaySources.type,
payload: update,
meta: { skipChangelog: true }
})
}
}
const spendEntryId = spendSource.order.find(s => s.startsWith(source))
if (spendEntryId) {
const spendEntry = spendSource.sources[spendEntryId]
let doUpdate = false
const update = { ...spendEntry }
if (spendEntry.disconnected !== state.disconnected) {
update.disconnected = state.disconnected
doUpdate = true
}
if (state.name && spendEntry.label !== state.name) {
update.label = state.name
doUpdate = true
}
if (doUpdate) {
console.log("updating spend source", source)

}, [updateSourceState])
dispatch({
type: editSpendSources.type,
payload: update,
meta: { skipChangelog: true }
})
}
}
}, [paySource, spendSource, dispatch])

useEffect(() => {
const interval = setInterval(() => {
checkHealth()
}, SubsCheckIntervalMs)
return () => {
clearInterval(interval)
}
}, [checkHealth])

useEffect(() => {
return subToBeacons(up => {
updateSourceState(up.createdByPub, { disconnected: false, name: up.name })
})
}, [updateSourceState])
/*
const updateSourceState = (source: string, connected: boolean) => {
const payEntry = paySource.find(s => s.pasteField === source)
if (payEntry) {
dispatch(editPaySources({ ...payEntry, disconnected: !connected }))
}
const spendEntry = spendSource.find(s => s.pasteField === source)
if (spendEntry) {
dispatch(editSpendSources({ ...spendEntry, disconnected: !connected }))
}
}
*/
return null
const checkHealth = useCallback(() => {
if (!isAppActive) {
console.log("App is in the background, skipping health check");
return;
}

getAllNostrClients().forEach((wrapper) => {
const state = wrapper.getClientState()
let oldestSingleSub: nostrCallback<any> | undefined = undefined
wrapper.getSingleSubs().forEach(([_, cb]) => {
if (!oldestSingleSub || oldestSingleSub.startedAtMillis > cb.startedAtMillis) {
oldestSingleSub = cb
}
})
if (!oldestSingleSub) {
console.log("no active single subs")
return
}
const now = Date.now()
const startedAtMillis = (oldestSingleSub as nostrCallback<any>).startedAtMillis
if (now - startedAtMillis < SubsThresholdMs) {
console.log("oldest single sub is less than ", SubsThresholdMs, " seconds old")
return
}
console.log("oldest sub is", (startedAtMillis - now) / 1000, "seconds old!")
if (now - state.latestResponseAtMillis <= SubsThresholdMs) {
console.log("latest response is less than ", SubsThresholdMs, " seconds old")
return
}
console.log("latest response is more than ", SubsThresholdMs, " seconds old, checking beacon state")
wrapper.checkBeaconHealth(BeaconMaxAgeSeconds).then(beacon => {
if (!beacon) {
console.log("service is down, beacon is older than", BeaconMaxAgeSeconds, "seconds, disconnecting")
wrapper.disconnectCalls()
toast.error(<Toast title="Source Error" message={`Cannot connect to source: ${wrapper.getPubDst().slice(0, 10)}.`} />)
updateSourceState(wrapper.getPubDst(), { disconnected: true, })
return
}
updateSourceState(wrapper.getPubDst(), { disconnected: false, name: beacon.data.name })

})
})

}, [updateSourceState, isAppActive])

useEffect(() => {
if (isAppActive) {
intervalRef.current = setInterval(() => {
checkHealth();
}, SubsCheckIntervalMs);
} else if (intervalRef.current) {
clearInterval(intervalRef.current);
intervalRef.current = null;
}
return () => {
if (intervalRef.current) {
clearInterval(intervalRef.current);
}
}
}, [checkHealth, dispatch, isAppActive])

useEffect(() => {
const listener = App.addListener("appStateChange", (state) => setIsAppActive(state.isActive));

return () => {
listener.remove();
}
}, [])

useEffect(() => {
return subToBeacons(up => {
updateSourceState(up.createdByPub, { disconnected: false, name: up.name })
})
}, [updateSourceState])
/*
const updateSourceState = (source: string, connected: boolean) => {
const payEntry = paySource.find(s => s.pasteField === source)
if (payEntry) {
dispatch(editPaySources({ ...payEntry, disconnected: !connected }))
}
const spendEntry = spendSource.find(s => s.pasteField === source)
if (spendEntry) {
dispatch(editSpendSources({ ...spendEntry, disconnected: !connected }))
}
}
*/
return null
}