ClankerSniperAuctionV0

// emitted when a new auction is initialized with the first round's parameters
event AuctionInitialized(
    PoolId indexed poolId, uint256 gasPeg, uint256 indexed auctionBlock, uint256 round
);
// emitted when an auction is reset, with the next round's parameters
event AuctionReset(
    PoolId indexed poolId, uint256 gasPeg, uint256 indexed auctionBlock, uint256 round
);
// emitted when a sniper wins an auction
event AuctionWon(PoolId indexed poolId, address indexed payee, uint256 paymentAmount, uint256 round);

// emitted when the gas payment expectation is updated
// note: advanced warning will be given, will not be updated often
event SetPaymentPerGasUnit(uint256 oldPaymentPerGasUnit, uint256 newPaymentPerGasUnit);

// addresses of the sniper util and auction
ClankerSniperAuctionV0 sniperAuction;
ClankerSniperUtilV0 sniperUtil;

// addresses of the deployed clanker token, paired token, and associated poolKey
// (can be found on the TokenCreated event)
address clankerToken;
PoolKey memory clankerPoolKey;
address pairedToken;

// amount of the input token to swap
uint256 amountIn = AMOUNT_TOKEN_TO_SWAP;
// amount of eth to pay as bid (needs to be multiple of IClankerSniperAuctionV0.PAYMENT_PER_GAS_UNIT())
uint256 bidAmount = AMOUNT_TO_BID; 

// approve the sniper util to pull in the swap's input token
IERC20(pairedToken).approve(address(sniperUtil), amountIn);

// build the desired swap to run if the bid is winning
IV4Router.ExactInputSingleParams memory swapParams = IV4Router.ExactInputSingleParams({
    poolKey: poolKey,
    amountIn: uint128(amountIn),
    amountOutMinimum: 0,
    zeroForOne: pairedToken > clankerToken,
    // util will fill out, needs to be address to pull WETH bid payment from
    hookData: abi.encode("") 
});

// get token's gas peg
uint256 gasPeg = sniperAuction.gasPeg(poolKey.toId());
// get next auction block
uint256 nextAuctionBlock = sniperAuction.nextAuctionBlock(poolKey.toId());
// get current round
uint256 round = sniperAuction.round(poolKey.toId());

// determine gas price that needs to be used to match desired payment amount
uint256 txGasPrice = sniperUtil.getTxGasPriceForBidAmount(gasPeg, bidAmount);

// bid in auction
// NOTE: you need to land this in the correct block with the correct gas price,
// this will be the hardest part of using the auction until we can get
// bundle support on Base, please complain on twitter to the Flashbot / Base people
// that we want transactions to be able to specify which block they land in :(
sniperUtil.bidInAuction{value: bidAmount}(swapParams, round);