Add the jackpot to your site

import { createPublicClient, createWalletClient, http, stringToHex } from "viem";
import { base } from "viem/chains";

const JACKPOT = "0x3bAe643002069dBCbcd62B1A4eb4C4A397d042a2";
const USDC = "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913";

// Your attribution: the wallet that earns, and your analytics label.
const REFERRER = "0x1111111111111111111111111111111111111111"; // your wallet
const SOURCE = stringToHex("mysite", { size: 32 });            // bytes32 tag

// 1. Read live drawing state for the ticket price and number ranges.
//    ballMax / bonusballMax come from chain: do NOT hardcode them.
const state = await publicClient.readContract({
  address: JACKPOT,
  abi: jackpotAbi,
  functionName: "getDrawingState",
});
const ticketPrice = state.ticketPrice; // USDC, 6 decimals

// 2. Build tickets: 5 unique normals in [1, ballMax], bonusball in [1, bonusballMax].
const tickets = [
  { normals: [7, 14, 21, 28, 30], bonusball: 12 },
  { normals: [3, 11, 19, 27, 29], bonusball: 8 },
];

// 3. Approve USDC to the Jackpot contract (the one receiving payment).
const totalCost = ticketPrice * BigInt(tickets.length);
await walletClient.writeContract({
  address: USDC,
  abi: usdcAbi,
  functionName: "approve",
  args: [JACKPOT, totalCost],
});

// 4. Buy. referrerSplit weights must sum to exactly 1e18.
await walletClient.writeContract({
  address: JACKPOT,
  abi: jackpotAbi,
  functionName: "buyTickets",
  args: [
    tickets,
    userAddress,          // _recipient: owns the ticket NFTs
    [REFERRER],           // _referrers: who gets paid
    [1000000000000000000n], // _referralSplit: 100% (1e18) to the one referrer
    SOURCE,               // _source: your bytes32 analytics tag
  ],
});
// Tickets are minted immediately.

git clone https://github.com/coordinationlabs/megapot-starter-kit
cd megapot-starter-kit
pnpm bootstrap  # copies .env.example -> .env and installs deps
# Set VITE_REFERRER_ADDRESS to your wallet, and your source tag, in .env
pnpm dev      # http://localhost:5173