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Simplify data auto-refresh with regular polling and visibility detection

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Replace hourly-only refresh with a 5-minute polling interval that also
aligns to hour boundaries, add tab visibility change detection, and
debounce overlapping triggers.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
Matt Isenhower
2026-02-21 15:56:26 -08:00
parent c1664590b5
commit 111118cbb0
1 changed files with 37 additions and 22 deletions
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59
src/stores/data.mjs
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@@ -52,7 +52,8 @@ export const useDataStore = defineStore('data', () => {
coop: useCoopDataStore(),
festivals: useFestivalsDataStore(),
};
let updateDataTimer;
let refreshTimer;
let lastRefresh = 0;
function updateAll() {
return Promise.all(Object.values(stores).map(s => s.update()));
@@ -60,35 +61,49 @@ export const useDataStore = defineStore('data', () => {
const isUpdating = computed(() => Object.values(stores).some(s => s.isUpdating));
function startUpdating() {
if (updateDataTimer) {
return;
}
function refresh() {
const now = Date.now();
if (now - lastRefresh < 60_000) return;
lastRefresh = now;
updateAll();
}
let date = new Date;
function msUntilNextHour() {
const next = new Date();
next.setMinutes(0, 0, 0);
next.setHours(next.getHours() + 1);
return next - new Date();
}
// If we're more than 20 seconds past the current hour, schedule the update for the next hour
if (date.getMinutes() !== 0 || date.getSeconds() >= 20)
date.setHours(date.getHours() + 1);
date.setMinutes(0);
function scheduleNextRefresh() {
const fiveMinutes = 5 * 60_000;
const jitter = Math.floor(Math.random() * 36 + 25) * 1000;
const untilHour = msUntilNextHour() + jitter;
const delay = Math.min(fiveMinutes, untilHour);
// Random number of seconds past the hour (so all open browsers don't hit the server at the same time)
let minSec = 25;
let maxSec = 60;
date.setSeconds(Math.floor(Math.random() * (maxSec - minSec + 1)) + minSec);
refreshTimer = setTimeout(() => {
refresh();
scheduleNextRefresh();
}, delay);
}
// Set the timeout
updateDataTimer = setTimeout(() => {
updateDataTimer = null;
startUpdating();
}, (date - new Date));
function onVisibilityChange() {
if (document.visibilityState === 'visible') {
refresh();
}
}
function startUpdating() {
if (refreshTimer) return;
refresh();
scheduleNextRefresh();
document.addEventListener('visibilitychange', onVisibilityChange);
}
function stopUpdating() {
clearInterval(updateDataTimer);
updateDataTimer = null;
clearTimeout(refreshTimer);
refreshTimer = null;
document.removeEventListener('visibilitychange', onVisibilityChange);
}
return {