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/*
* SPDX-FileCopyrightText: syuilo and misskey-project
* SPDX-License-Identifier: AGPL-3.0-only
*/
import { parseBigInt16 } from '@/misc/bigint.js';
const CHARS = '0123456789abcdef';
// same as meid
export const objectIdRegExp = /^[0-9a-f]{24}$/;
function getTime(time: number) {
if (time < 0) time = 0;
if (time === 0) {
return CHARS[0];
}
time = Math.floor(time / 1000);
return time.toString(16).padStart(8, CHARS[0]);
}
function getRandom() {
let str = '';
for (let i = 0; i < 16; i++) {
str += CHARS[Math.floor(Math.random() * CHARS.length)];
}
return str;
}
export function genObjectId(t: number): string {
return getTime(t) + getRandom();
}
export function parseObjectId(id: string): { date: Date; } {
return {
date: new Date(parseInt(id.slice(0, 8), 16) * 1000),
};
}
export function parseObjectIdFull(id: string): { date: number; additional: bigint; } {
return {
date: parseInt(id.slice(0, 8), 16) * 1000,
additional: parseBigInt16(id.slice(8, 24)),
};
}
export function isSafeObjectIdT(t: number): boolean {
return t > 0;
}
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