Storyden

const BASE32_CHARS = "0123456789abcdefghijklmnopqrstuv"; function encodeBase32(bytes: Uint8Array): string { let result = ""; let bits = 0; let value = 0; for (let i = 0; i < bytes.length; i++) { const byte = bytes[i]; if (byte === undefined) continue; value = (value << 8) | byte; bits += 8; while (bits >= 5) { result += BASE32_CHARS[(value >>> (bits - 5)) & 31]; bits -= 5; } } if (bits > 0) { result += BASE32_CHARS[(value << (5 - bits)) & 31]; } return result; } export function generateXid(): string { const uuid = crypto.randomUUID(); const bytes = new Uint8Array( uuid .replace(/-/g, "") .match(/.{2}/g)! .map((byte) => parseInt(byte, 16)), ); const timestamp = Math.floor(Date.now() / 1000); const timestampBytes = new Uint8Array([ (timestamp >>> 24) & 0xff, (timestamp >>> 16) & 0xff, (timestamp >>> 8) & 0xff, timestamp & 0xff, ]); const combined = new Uint8Array(12); combined.set(timestampBytes, 0); combined.set(bytes.slice(0, 8), 4); return encodeBase32(combined); }