const crypto = require("crypto");

const serverSeed = "example_server_seed";
const publicSeed = "example_public_seed";
const roundId = "example_round_id";
const min = 0n;
const max = BigInt(total_pool_value);

const hash = crypto
  .createHash('sha512')
  .update(`${serverSeed}-${publicSeed}-${roundId}`)
  .digest('hex');

const ticket = seededRandomBigInt(hash, min, max);

function seededRandomBigInt(hash, min, max) {
  const uintValue = BigInt("0x" + hash.slice(0, 16));
  const range = max - min + BigInt(1);
  return min + (uintValue % range);
}