Convert UUID to a human readable ID

uuid_to_huid.ts

import { v4 as uuidv4 } from 'uuid';

// Custom character set (26 letters + 10 digits)
const CHAR_SET = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';

function uuidToCustomIid(uuidStr: string, length: number = 10): string {
    // Remove dashes from UUID
    const cleanUuid = uuidStr.replace(/-/g, '');
    // Convert to an integer
    const uuidInt = BigInt(`0x${cleanUuid}`);
    // Convert the integer to a string using the custom character set
    let customIid = '';
    let tempInt = uuidInt;
    while (tempInt > 0) {
        const remainder = tempInt % BigInt(CHAR_SET.length);
        customIid = CHAR_SET[Number(remainder)] + customIid;
        tempInt = tempInt / BigInt(CHAR_SET.length);
    }
    // Ensure the result is exactly `length` characters long
    return customIid.padStart(length, '0').substring(0, length);
}