97 lines
2.8 KiB
TypeScript
97 lines
2.8 KiB
TypeScript
/*
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* https://github.com/morethanwords/tweb
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* Copyright (C) 2019-2021 Eduard Kuzmenko
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* https://github.com/morethanwords/tweb/blob/master/LICENSE
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*
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* Originally from:
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* https://github.com/zhukov/webogram
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* Copyright (C) 2014 Igor Zhukov <igor.beatle@gmail.com>
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* https://github.com/zhukov/webogram/blob/master/LICENSE
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*/
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import sessionStorage from '../sessionStorage';
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import { longFromInts } from './bin_utils';
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import { nextRandomUint } from '../../helpers/random';
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import { MOUNT_CLASS_TO } from '../../config/debug';
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import { WorkerTaskVoidTemplate } from '../../types';
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import { notifySomeone } from '../../helpers/context';
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/*
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let lol: any = {};
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for(var i = 0; i < 100; i++) {
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timeManager.generateId();
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}
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*/
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export interface ApplyServerTimeOffsetTask extends WorkerTaskVoidTemplate {
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type: 'applyServerTimeOffset',
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payload: TimeManager['timeOffset']
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};
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export class TimeManager {
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private lastMessageId: [number, number] = [0, 0];
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private timeOffset: number = 0;
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constructor() {
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sessionStorage.get('server_time_offset').then((to) => {
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if(to) {
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this.timeOffset = to;
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}
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});
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}
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public generateId(): string {
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const timeTicks = Date.now(),
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timeSec = Math.floor(timeTicks / 1000) + this.timeOffset,
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timeMSec = timeTicks % 1000,
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random = nextRandomUint(16);
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let messageId: TimeManager['lastMessageId'] = [timeSec, (timeMSec << 21) | (random << 3) | 4];
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if(this.lastMessageId[0] > messageId[0] ||
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this.lastMessageId[0] === messageId[0] && this.lastMessageId[1] >= messageId[1]) {
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messageId = [this.lastMessageId[0], this.lastMessageId[1] + 4];
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}
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this.lastMessageId = messageId;
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const ret = longFromInts(messageId[0], messageId[1]);
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// if(lol[ret]) {
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// console.error('[TimeManager]: Generated SAME msg id', messageId, this.timeOffset, ret);
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// }
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// lol[ret] = true;
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// console.log('[TimeManager]: Generated msg id', messageId, this.timeOffset, ret);
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return ret
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}
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public applyServerTime(serverTime: number, localTime?: number) {
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localTime = (localTime || Date.now()) / 1000 | 0;
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const newTimeOffset = serverTime - localTime;
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const changed = Math.abs(this.timeOffset - newTimeOffset) > 10;
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sessionStorage.set({
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server_time_offset: newTimeOffset
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});
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this.lastMessageId = [0, 0];
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this.timeOffset = newTimeOffset;
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//console.log('[TimeManager]: Apply server time', serverTime, localTime, newTimeOffset, changed);
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/// #if MTPROTO_WORKER
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const task: ApplyServerTimeOffsetTask = {
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type: 'applyServerTimeOffset',
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payload: newTimeOffset
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};
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notifySomeone(task);
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/// #endif
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return changed;
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}
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}
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const timeManager = new TimeManager();
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MOUNT_CLASS_TO.timeManager = timeManager;
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export default timeManager;
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