48 lines
2.0 KiB
TypeScript
48 lines
2.0 KiB
TypeScript
import Web3 from "web3";
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import BigNumber from "bignumber.js"
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import { AbiItem } from 'web3-utils';
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import { EthAddress, IStaker } from "./@types/staker";
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import * as dotenv from "dotenv";
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import { governanceAddress, governanceRewardsProposalBlock, hackBlock, oldStakingAddress } from "./config";
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import GovernanceAbi from "../abi/GovernanceAbi.json";
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import StakingAbi from "../abi/StakingABI.json";
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dotenv.config();
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const web3 = new Web3(process.env.MAINNET_RPC_URL as string);
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function getGovernanceFunctionSelector(functionName: string): string {
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const lockFunctionAbi = GovernanceAbi.find(item => item.name == functionName);
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if (!lockFunctionAbi) throw new Error(`Cannot find function ${functionName} in Governance contract ABI`);
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const selector = web3.eth.abi.encodeFunctionSignature(lockFunctionAbi as AbiItem);
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return selector;
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}
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async function getAddressesStakersWithProssibleRewards(): Promise<Array<EthAddress>> {
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const governanceContract = new web3.eth.Contract(GovernanceAbi as AbiItem[], governanceAddress);
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const rewardsUpdateEvents =
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await governanceContract.getPastEvents("RewardUpdateSuccessful", { fromBlock: governanceRewardsProposalBlock });
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const governanceStakers = rewardsUpdateEvents.map(event => event.returnValues.account as string);
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return [...new Set(governanceStakers)];
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}
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export async function getStakersWithRewardsBeforeHack(): Promise<Array<IStaker>> {
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const stakingContract = new web3.eth.Contract(StakingAbi as AbiItem[], oldStakingAddress);
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const stakersAddresses = await getAddressesStakersWithProssibleRewards();
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let stakersWithRewardsBeforeHack: Array<IStaker> = [];
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for (const address of stakersAddresses) {
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const rewardsBeforeHack = await stakingContract.methods.checkReward(address).call({}, hackBlock - 1);
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if (BigNumber(rewardsBeforeHack).div(1e18).isGreaterThan(1))
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stakersWithRewardsBeforeHack.push({ address, rewardBalance: BigNumber(rewardsBeforeHack) });
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}
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return stakersWithRewardsBeforeHack;
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}
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