25 lines
588 B
TypeScript
25 lines
588 B
TypeScript
/*
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* SPDX-FileCopyrightText: syuilo and misskey-project
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* SPDX-License-Identifier: AGPL-3.0-only
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*/
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import { secureRndstr } from './secure-rndstr.js';
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const CHARS = '23456789ABCDEFGHJKLMNPQRSTUVWXYZ'; // [0-9A-Z] w/o [01IO] (32 patterns)
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export function generateInviteCode(): string {
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const code = secureRndstr(8, {
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chars: CHARS,
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});
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const uniqueId = [];
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let n = Math.floor(Date.now() / 1000 / 60);
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while (true) {
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uniqueId.push(CHARS[n % CHARS.length]);
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const t = Math.floor(n / CHARS.length);
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if (!t) break;
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n = t;
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}
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return code + uniqueId.reverse().join('');
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}
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