sharkey/packages/frontend/src/stream.ts
2024-10-19 13:42:16 +09:00

49 lines
1.3 KiB
TypeScript
Executable File

/*
* SPDX-FileCopyrightText: syuilo and misskey-project
* SPDX-License-Identifier: AGPL-3.0-only
*/
import * as Misskey from 'misskey-js';
import { markRaw } from 'vue';
import { $i } from '@/account.js';
import { wsOrigin } from '@/config.js';
// heart beat interval in ms
const HEART_BEAT_INTERVAL = 1000 * 60;
let stream: Misskey.Stream | null = null;
let timeoutHeartBeat: ReturnType<typeof setTimeout> | null = null;
let lastHeartbeatCall = 0;
export function useStream(): Misskey.Stream {
if (stream) return stream;
stream = markRaw(new Misskey.Stream(wsOrigin, $i ? {
token: $i.token,
} : null));
if (timeoutHeartBeat) window.clearTimeout(timeoutHeartBeat);
timeoutHeartBeat = window.setTimeout(heartbeat, HEART_BEAT_INTERVAL);
// send heartbeat right now when last send time is over HEART_BEAT_INTERVAL
document.addEventListener('visibilitychange', () => {
if (
!stream
|| document.visibilityState !== 'visible'
|| Date.now() - lastHeartbeatCall < HEART_BEAT_INTERVAL
) return;
heartbeat();
});
return stream;
}
function heartbeat(): void {
if (stream != null && document.visibilityState === 'visible') {
stream.heartbeat();
}
lastHeartbeatCall = Date.now();
if (timeoutHeartBeat) window.clearTimeout(timeoutHeartBeat);
timeoutHeartBeat = window.setTimeout(heartbeat, HEART_BEAT_INTERVAL);
}