53 lines
1.7 KiB
TypeScript
53 lines
1.7 KiB
TypeScript
/*
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* Copyright (C) 2026 Fluxer Contributors
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*
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* This file is part of Fluxer.
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*
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* Fluxer is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Fluxer is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with Fluxer. If not, see <https://www.gnu.org/licenses/>.
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*/
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import {UsernameType} from '~/Schema';
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import {transliterate as tr} from 'transliteration';
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const MAX_USERNAME_LENGTH = 32;
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function sanitizeDisplayName(globalName: string): string | null {
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const trimmed = globalName.trim();
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if (!trimmed) return null;
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let sanitized = tr(trimmed);
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sanitized = sanitized.replace(/[\s\-.]+/g, '_');
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sanitized = sanitized.replace(/[^a-zA-Z0-9_]/g, '');
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if (!sanitized) return null;
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if (sanitized.length > MAX_USERNAME_LENGTH) {
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sanitized = sanitized.substring(0, MAX_USERNAME_LENGTH);
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}
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const validation = UsernameType.safeParse(sanitized);
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if (!validation.success) {
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return null;
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}
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return sanitized;
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}
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export function deriveUsernameFromDisplayName(globalName: string): string | null {
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return sanitizeDisplayName(globalName);
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}
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export function generateUsernameSuggestions(globalName: string): Array<string> {
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const candidate = deriveUsernameFromDisplayName(globalName);
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return candidate ? [candidate] : [];
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}
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