fluxer/packages/limits/src/LimitHashing.tsx
2026-02-17 12:22:36 +00:00

39 lines
1.2 KiB
TypeScript

/*
* Copyright (C) 2026 Fluxer Contributors
*
* This file is part of Fluxer.
*
* Fluxer is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Fluxer is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with Fluxer. If not, see <https://www.gnu.org/licenses/>.
*/
import {DEFAULT_FREE_LIMITS, DEFAULT_PREMIUM_LIMITS} from '@fluxer/limits/src/LimitDefaults';
function simpleHash(str: string): string {
let hash = 0;
for (let i = 0; i < str.length; i++) {
const char = str.charCodeAt(i);
hash = (hash << 5) - hash + char;
hash = hash & hash;
}
return Math.abs(hash).toString(36);
}
export function computeDefaultsHash(): string {
const combined = {
free: DEFAULT_FREE_LIMITS,
premium: DEFAULT_PREMIUM_LIMITS,
};
return simpleHash(JSON.stringify(combined));
}