@xtsai/xai-utils
Version:
The xai-utils is an openai nodejs sdk compatible extension library.
69 lines • 2.13 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.UnoHelper = void 0;
class UnoHelper {
/**
*
* {2:valid}+{4:type}+{8:seqno}
* @param seqno max 8 digits numbers
* @param seeds array
* @return string
*/
static buildUno(seqno, seeds) {
if (!/[\d]{1,8}/.test(seqno.toString()))
throw new Error(`seqno [${seqno}] more than 8 length.`);
const notMaches = seeds.filter((s) => !/[0-9]{2,4}/.test(s));
if (notMaches?.length) {
throw new Error(`Seeds [${notMaches.join(',')}] not 4 digits.`);
}
if (!seeds.length) {
seeds.push('444');
}
const range = seeds.length;
const idx = Math.floor(Math.random() * range);
let seed = seeds[idx];
seed = `0000${seed}`.slice(-4);
const checkDigit = `00${parseInt(seed) % 17}`.slice(-2);
const no = `00000000${seqno}`.slice(-8);
const value = `${checkDigit}${seed}${no}`;
const uno = Number(value).toString(36);
return {
uno,
value,
};
}
/**
*
* @param uno36 base36 string
* @returns no with digits
*/
static parseUno(uno36) {
if (!/[0-9a-z]{8,14}/.test(uno36))
throw new Error(`uno [${uno36}] illegal.`);
const no = parseInt(uno36, 36);
return `000000${no}`.slice(-14);
}
/**
* validate uno illegal
* @param uno userno string or value
* @returns boolean illegal uno
*/
static validUno(uno) {
if (!/[0-9a-z]{9,14}/.test(uno))
return false;
let unoValue = uno;
if (/[a-z]+/.test(uno)) {
unoValue = UnoHelper.parseUno(uno);
}
else {
unoValue = `000000${uno}`.slice(-14);
}
const m = parseInt(unoValue.slice(0, 2));
globalThis.console.log(m);
const seed = parseInt(unoValue.slice(2, 6));
globalThis.console.log(seed);
return seed % 17 === m;
}
}
exports.UnoHelper = UnoHelper;
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