Script for picking Wrassler giveaway winner

pickWinner.ts

import 'dotenv/config';
import {ethers} from 'hardhat';
import RandomOrg from 'random-org';

import {
  abi as arenaAbi,
  address as arenaAddress,
} from '../deployments/matic/WrasslingArenaV2.json';

import {
  address as betaAddress,
  abi as betaAbi,
} from '../deployments/matic/BetaWrasslers.json';
import {utils} from 'ethers';

async function main() {
  const accounts = await ethers.getSigners();

  const WrasslingArena = await ethers.getContractAt(
    arenaAbi,
    arenaAddress,
    accounts[1]
  );

  const WrasslersBeta = await ethers.getContractAt(
    betaAbi,
    betaAddress,
    accounts[1]
  );

  const count = await WrasslersBeta.totalSupply();

  const tokenIds = Array.from({length: count.toNumber()}, (_, i) => i + 1);

  const ADMINS = [
    utils.getAddress('0x4DB119936A4141b63e12446C6349880D19560690'), // shawn
    utils.getAddress('0x0090720FeD7Fed66eD658118b7B3BB0189D3A495'), // sam
    utils.getAddress('0x67364ad8F3128A514dAC47032Aa4fbA3C5E65495'), // jonny
    utils.getAddress('0xc0F5b93Bb77271d9CE898d08013f4958d1478534'), // wrasslers.eth
    utils.getAddress('0x32A0fA5EE62c78dde4B74ae1d4B22e7E63EB337d'), // james
    utils.getAddress('0x173974Ec39dD85307c4171f4ccd75491bD96b405'), // ashe
    utils.getAddress('0x6240dbA61fA6377B9Fe79523133a64A2aAd9178A'), // jonny
    utils.getAddress('0x3D45A968ABa09D2124354c7EC4CB0125afd91810'), // alex
  ];

  const ticketsMap: Record<string, number> = {};

  for (const id of tokenIds) {
    const owner = await WrasslersBeta.ownerOf(id);

    if (ADMINS.includes(utils.getAddress(owner))) {
      continue;
    }

    const player = await WrasslingArena.players(owner);

    const playerEntries = player.wins.toNumber();
    if (playerEntries > 0) ticketsMap[owner] = playerEntries;
  }

  const tickets = Object.entries(ticketsMap).reduce(
    (all, [address, count]) => [
      ...all,
      ...Array.from({length: count}, () => address),
    ],
    []
  );

  console.warn(tickets.length);

  const shuffled = shuffle(tickets);

  const random = new RandomOrg({
    apiKey: process.env.RANDOM_ORG_KEY,
  });
  const {
    random: {
      data: [randomIndex],
    },
  } = await random.generateIntegers({
    min: 0,
    max: shuffled.length,
    n: 1,
  });

  return tickets[randomIndex];
}

/**
 * Shuffles array in place. ES6 version
 * @param {Array} a items An array containing the items.
 */
function shuffle(a) {
  for (let i = a.length - 1; i > 0; i--) {
    const j = Math.floor(Math.random() * (i + 1));
    [a[i], a[j]] = [a[j], a[i]];
  }
  return a;
}

main()
  .then((winner) => {
    console.log(winner);
    process.exit(0);
  })
  .catch((error) => {
    console.error(error);
    process.exit(1);
  });