65 lines
1.9 KiB
JavaScript
Executable File
65 lines
1.9 KiB
JavaScript
Executable File
import { useEffect, useRef } from 'react';
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import { useMutation, useSubscription } from '@apollo/client';
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import { CONNECTION_STATUS_SUBSCRIPTION } from './queries';
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import { UPDATE_CONNECTION_ALIVE_AT, UPDATE_USER_CLIENT_RTT } from './mutations';
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const STATS_INTERVAL = Meteor.settings.public.stats.interval;
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const ConnectionStatus = () => {
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const networkRttInMs = useRef(null); // Ref to store the current timeout
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const lastStatusUpdatedAtReceived = useRef(null); // Ref to store the current timeout
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const timeoutRef = useRef(null);
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const [updateUserClientRtt] = useMutation(UPDATE_USER_CLIENT_RTT);
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const handleUpdateUserClientResponseAt = () => {
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updateUserClientRtt({
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variables: {
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networkRttInMs: networkRttInMs.current,
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},
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});
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};
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const [updateConnectionAliveAtToMeAsNow] = useMutation(UPDATE_CONNECTION_ALIVE_AT);
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const handleUpdateConnectionAliveAt = () => {
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const startTime = performance.now();
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updateConnectionAliveAtToMeAsNow().then(() => {
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const endTime = performance.now();
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networkRttInMs.current = endTime - startTime;
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}).finally(() => {
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if (timeoutRef.current) {
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clearTimeout(timeoutRef.current);
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}
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timeoutRef.current = setTimeout(() => {
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handleUpdateConnectionAliveAt();
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}, STATS_INTERVAL);
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});
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};
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useEffect(() => {
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handleUpdateConnectionAliveAt();
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}, []);
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const { loading, error, data } = useSubscription(CONNECTION_STATUS_SUBSCRIPTION);
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if (!loading && !error && data) {
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data.user_connectionStatus.forEach((curr) => {
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if (curr.connectionAliveAt != null
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&& curr.userClientResponseAt == null
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&& (curr.statusUpdatedAt == null
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|| curr.statusUpdatedAt !== lastStatusUpdatedAtReceived.current
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)
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) {
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lastStatusUpdatedAtReceived.current = curr.statusUpdatedAt;
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handleUpdateUserClientResponseAt();
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}
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});
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}
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return null;
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};
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export default ConnectionStatus;
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