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/*
* SPDX-FileCopyrightText: syuilo and misskey-project
* SPDX-License-Identifier: AGPL-3.0-only
*/
// Crockford's Base32
// https://github.com/ulid/spec#encoding
import { parseBigInt32 } from '@/misc/bigint.js';
const CHARS = '0123456789ABCDEFGHJKMNPQRSTVWXYZ';
export const ulidRegExp = /^[0123456789ABCDEFGHJKMNPQRSTVWXYZ]{26}$/;
function parseBase32(timestamp: string) {
let time = 0;
for (let i = 0; i < timestamp.length; i++) {
time = time * 32 + CHARS.indexOf(timestamp[i]);
}
return time;
}
export function parseUlid(id: string): { date: Date; } {
return { date: new Date(parseBase32(id.slice(0, 10))) };
}
export function parseUlidFull(id: string): { date: number; additional: bigint; } {
return {
date: parseBase32(id.slice(0, 10)),
additional: parseBigInt32(id.slice(10, 26)),
};
}
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