phanpy/src/components/background-service.jsx
Lim Chee Aun 5147efd123 memo all the things
Somehow things got slower on local dev
2023-09-09 14:09:50 +08:00

94 lines
2.8 KiB
JavaScript

import { memo } from 'preact/compat';
import { useEffect, useRef, useState } from 'preact/hooks';
import { api } from '../utils/api';
import states, { saveStatus } from '../utils/states';
import useInterval from '../utils/useInterval';
import usePageVisibility from '../utils/usePageVisibility';
export default memo(function BackgroundService({ isLoggedIn }) {
// Notifications service
// - WebSocket to receive notifications when page is visible
const [visible, setVisible] = useState(true);
usePageVisibility(setVisible);
const notificationStream = useRef();
useEffect(() => {
if (isLoggedIn && visible) {
const { masto, instance } = api();
(async () => {
// 1. Get the latest notification
if (states.notificationsLast) {
const notificationsIterator = masto.v1.notifications.list({
limit: 1,
since_id: states.notificationsLast.id,
});
const { value: notifications } = await notificationsIterator.next();
if (notifications?.length) {
states.notificationsShowNew = true;
}
}
// 2. Start streaming
notificationStream.current = await masto.ws.stream(
'/api/v1/streaming',
{
stream: 'user:notification',
},
);
console.log('🎏 Streaming notification', notificationStream.current);
notificationStream.current.on('notification', (notification) => {
console.log('🔔🔔 Notification', notification);
if (notification.status) {
saveStatus(notification.status, instance, {
skipThreading: true,
});
}
states.notificationsShowNew = true;
});
notificationStream.current.ws.onclose = () => {
console.log('🔔🔔 Notification stream closed');
};
})();
}
return () => {
if (notificationStream.current) {
notificationStream.current.ws.close();
notificationStream.current = null;
}
};
}, [visible, isLoggedIn]);
// Check for updates service
const lastCheckDate = useRef();
const checkForUpdates = () => {
lastCheckDate.current = Date.now();
console.log('✨ Check app update');
fetch('./version.json')
.then((r) => r.json())
.then((info) => {
if (info) states.appVersion = info;
})
.catch((e) => {
console.error(e);
});
};
useInterval(checkForUpdates, visible && 1000 * 60 * 30); // 30 minutes
usePageVisibility((visible) => {
if (visible) {
if (!lastCheckDate.current) {
checkForUpdates();
} else {
const diff = Date.now() - lastCheckDate.current;
if (diff > 1000 * 60 * 60) {
// 1 hour
checkForUpdates();
}
}
}
});
return null;
});