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/*
* SPDX-FileCopyrightText: syuilo and misskey-project
* SPDX-License-Identifier: AGPL-3.0-only
*/
const CHARS = '0123456789abcdef';
// same as object-id
export const meidRegExp = /^[0-9a-f]{24}$/;
function getTime(time: number) {
if (time < 0) time = 0;
if (time === 0) {
return CHARS[0];
}
time += 0x800000000000;
return time.toString(16).padStart(12, CHARS[0]);
}
function getRandom() {
let str = '';
for (let i = 0; i < 12; i++) {
str += CHARS[Math.floor(Math.random() * CHARS.length)];
}
return str;
}
export function genMeid(t: number): string {
return getTime(t) + getRandom();
}
export function parseMeid(id: string): { date: Date; } {
return {
date: new Date(parseInt(id.slice(0, 12), 16) - 0x800000000000),
};
}
export function isSafeMeidT(t: number): boolean {
return t > 0;
}
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