viem
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JavaScript
import { readContract, } from '../../actions/public/readContract.js';
import { decodeAbiParameters } from '../../utils/abi/decodeAbiParameters.js';
import { disputeGameFactoryAbi, portal2Abi } from '../abis.js';
/**
* Retrieves dispute games for an L2.
*
* - Docs: https://viem.sh/op-stack/actions/getGame
*
* @param client - Client to use
* @param parameters - {@link GetGameParameters}
* @returns Dispute games. {@link GetGameReturnType}
*
* @example
* import { createPublicClient, http } from 'viem'
* import { mainnet, optimism } from 'viem/chains'
* import { getGames } from 'viem/op-stack'
*
* const publicClientL1 = createPublicClient({
* chain: mainnet,
* transport: http(),
* })
*
* const games = await getGames(publicClientL1, {
* targetChain: optimism
* })
*/
export async function getGames(client, parameters) {
const { chain = client.chain, l2BlockNumber, limit = 100, targetChain, } = parameters;
const portalAddress = (() => {
if (parameters.portalAddress)
return parameters.portalAddress;
if (chain)
return targetChain.contracts.portal[chain.id].address;
return Object.values(targetChain.contracts.portal)[0].address;
})();
const disputeGameFactoryAddress = (() => {
if (parameters.disputeGameFactoryAddress)
return parameters.disputeGameFactoryAddress;
if (chain)
return targetChain.contracts.disputeGameFactory[chain.id].address;
return Object.values(targetChain.contracts.disputeGameFactory)[0].address;
})();
const [gameCount, gameType] = await Promise.all([
readContract(client, {
abi: disputeGameFactoryAbi,
functionName: 'gameCount',
args: [],
address: disputeGameFactoryAddress,
}),
readContract(client, {
abi: portal2Abi,
functionName: 'respectedGameType',
address: portalAddress,
}),
]);
const games = (await readContract(client, {
abi: disputeGameFactoryAbi,
functionName: 'findLatestGames',
address: disputeGameFactoryAddress,
args: [
gameType,
BigInt(Math.max(0, Number(gameCount - 1n))),
BigInt(Math.min(limit, Number(gameCount))),
],
}))
.map((game) => {
const [blockNumber] = decodeAbiParameters([{ type: 'uint256' }], game.extraData);
return !l2BlockNumber || blockNumber > l2BlockNumber
? { ...game, l2BlockNumber: blockNumber }
: null;
})
.filter(Boolean);
return games;
}
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