wehub-resource-sync
27 lines
897 B
TypeScript
27 lines
897 B
TypeScript
import { AVATAR_SOURCES } from '../data/avatarSources';
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const hashString = (s: string): number => {
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let h = 0;
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for (let i = 0; i < s.length; i++) h = (h * 31 + s.charCodeAt(i)) | 0;
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return Math.abs(h);
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};
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export const normalizeUsername = (raw: unknown): string => {
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const s = String(raw ?? '').trim();
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if (!s) return '';
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if (s.startsWith('u/')) return s.slice(2);
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if (s.startsWith('/u/')) return s.slice(3);
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return s;
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};
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/**
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* Deterministic avatar assignment: same username always maps to the same avatar.
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* AVATAR_SOURCES are resolved URLs from Vite import.meta.glob (no further wrapping needed).
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*/
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export const getUserAvatar = (usernameLike: unknown): string | undefined => {
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if (!AVATAR_SOURCES.length) return undefined;
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const u = normalizeUsername(usernameLike);
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if (!u) return AVATAR_SOURCES[0];
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return AVATAR_SOURCES[hashString(u) % AVATAR_SOURCES.length];
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};
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