add absorb script and upgrade script
This commit is contained in:
102
scripts/liquidation_bot/index.ts
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102
scripts/liquidation_bot/index.ts
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@@ -0,0 +1,102 @@
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import hre from 'hardhat';
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import { liquidateUnderwaterBorrowers } from './liquidateUnderwaterBorrowers';
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import * as fs from 'fs';
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import * as path from 'path';
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const LOOP_DELAY = 5000; // 5 秒轮询间隔
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/**
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* 清算机器人主循环
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*/
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async function main() {
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const network = hre.network.name;
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const chainId = hre.network.config.chainId;
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console.log('\n==========================================');
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console.log('🤖 YT Lending Liquidation Bot Started');
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console.log('==========================================');
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console.log('Network:', network);
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console.log('Chain ID:', chainId);
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console.log('Loop Delay:', LOOP_DELAY, 'ms\n');
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// 读取部署信息
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const deploymentsPath = path.join(__dirname, '../../deployments-lending.json');
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if (!fs.existsSync(deploymentsPath)) {
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throw new Error('deployments-lending.json not found');
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}
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const deployments = JSON.parse(fs.readFileSync(deploymentsPath, 'utf-8'));
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const deployment = deployments[chainId?.toString() || '421614'];
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if (!deployment) {
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throw new Error(`No deployment found for chainId: ${chainId}`);
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}
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console.log('📋 Contract Addresses:');
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console.log(' Lending Proxy:', deployment.lendingProxy);
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console.log(' Price Feed:', deployment.lendingPriceFeedProxy);
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console.log(' Base Token (USDC):', deployment.usdcAddress);
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console.log('');
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// 获取签名者
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const [signer] = await hre.ethers.getSigners();
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console.log('👤 Liquidator Address:', await signer.getAddress());
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console.log('💰 Liquidator Balance:', hre.ethers.formatEther(await hre.ethers.provider.getBalance(signer)), 'ETH\n');
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// 初始化合约
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const lendingContract = await hre.ethers.getContractAt(
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'Lending',
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deployment.lendingProxy,
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signer
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);
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const priceFeedContract = await hre.ethers.getContractAt(
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'LendingPriceFeed',
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deployment.lendingPriceFeedProxy,
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signer
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);
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console.log('✅ Contracts initialized\n');
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console.log('==========================================');
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console.log('🔄 Starting main loop...\n');
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let lastBlockNumber: number | undefined;
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// Compound V3 风格：while(true) 轮询
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while (true) {
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try {
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const currentBlockNumber = await hre.ethers.provider.getBlockNumber();
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console.log(`[${new Date().toISOString()}] Block: ${currentBlockNumber}`);
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// 检查是否有新区块（每个区块只处理一次）
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if (currentBlockNumber !== lastBlockNumber) {
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lastBlockNumber = currentBlockNumber;
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// 执行清算逻辑
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await liquidateUnderwaterBorrowers(
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lendingContract,
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priceFeedContract,
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signer
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);
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console.log(''); // 空行分隔
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} else {
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console.log(`Block already checked; waiting ${LOOP_DELAY}ms...\n`);
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}
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// 等待下一次轮询
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await new Promise(resolve => setTimeout(resolve, LOOP_DELAY));
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} catch (error) {
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console.error('❌ Error in main loop:', error);
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console.log(`Retrying in ${LOOP_DELAY}ms...\n`);
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await new Promise(resolve => setTimeout(resolve, LOOP_DELAY));
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}
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}
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}
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main()
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.then(() => process.exit(0))
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.catch((error) => {
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console.error('❌ Fatal error:', error);
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process.exit(1);
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});
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170
scripts/liquidation_bot/liquidateUnderwaterBorrowers.ts
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170
scripts/liquidation_bot/liquidateUnderwaterBorrowers.ts
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@@ -0,0 +1,170 @@
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import hre from 'hardhat';
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import { Signer } from 'ethers';
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const LOOKBACK_BLOCKS = 50000; // 查询最近 50000 个区块
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const LIQUIDATION_THRESHOLD = 10e6; // $10 (USDC 6 decimals)
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/**
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* 获取最近活跃的地址（通过多个事件）
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*/
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export async function getUniqueAddresses(
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lendingContract: any
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): Promise<string[]> {
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const currentBlock = await hre.ethers.provider.getBlockNumber();
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const fromBlock = Math.max(currentBlock - LOOKBACK_BLOCKS, 0);
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console.log(`📊 Querying events from block ${fromBlock} to ${currentBlock}...`);
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const uniqueAddresses = new Set<string>();
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// 1. Withdraw 事件（借款/提现）
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try {
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const withdrawFilter = lendingContract.filters.Withdraw();
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const withdrawEvents = await lendingContract.queryFilter(
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withdrawFilter,
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fromBlock,
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currentBlock
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);
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for (const event of withdrawEvents) {
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if (event.args?.src) uniqueAddresses.add(event.args.src);
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if (event.args?.dst) uniqueAddresses.add(event.args.dst);
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}
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console.log(` - Withdraw events: ${withdrawEvents.length}`);
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} catch (error) {
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console.error(' ⚠️ Failed to query Withdraw events:', error);
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}
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// 2. Supply 事件（存款）
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try {
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const supplyFilter = lendingContract.filters.Supply();
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const supplyEvents = await lendingContract.queryFilter(
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supplyFilter,
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fromBlock,
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currentBlock
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);
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for (const event of supplyEvents) {
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if (event.args?.from) uniqueAddresses.add(event.args.from);
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if (event.args?.dst) uniqueAddresses.add(event.args.dst);
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}
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console.log(` - Supply events: ${supplyEvents.length}`);
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} catch (error) {
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console.error(' ⚠️ Failed to query Supply events:', error);
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}
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// 3. SupplyCollateral 事件（抵押品存入）
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try {
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const supplyCollateralFilter = lendingContract.filters.SupplyCollateral();
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const supplyCollateralEvents = await lendingContract.queryFilter(
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supplyCollateralFilter,
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fromBlock,
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currentBlock
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);
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for (const event of supplyCollateralEvents) {
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if (event.args?.from) uniqueAddresses.add(event.args.from);
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if (event.args?.dst) uniqueAddresses.add(event.args.dst);
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}
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console.log(` - SupplyCollateral events: ${supplyCollateralEvents.length}`);
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} catch (error) {
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console.error(' ⚠️ Failed to query SupplyCollateral events:', error);
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}
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// 4. WithdrawCollateral 事件（抵押品提取）
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try {
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const withdrawCollateralFilter = lendingContract.filters.WithdrawCollateral();
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const withdrawCollateralEvents = await lendingContract.queryFilter(
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withdrawCollateralFilter,
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fromBlock,
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currentBlock
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);
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for (const event of withdrawCollateralEvents) {
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if (event.args?.src) uniqueAddresses.add(event.args.src);
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if (event.args?.to) uniqueAddresses.add(event.args.to);
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}
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console.log(` - WithdrawCollateral events: ${withdrawCollateralEvents.length}`);
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} catch (error) {
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console.error(' ⚠️ Failed to query WithdrawCollateral events:', error);
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}
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console.log(`✅ Found ${uniqueAddresses.size} unique addresses from all events`);
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return Array.from(uniqueAddresses);
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}
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/**
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* 检查并清算可清算账户
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* 参考：comet/scripts/liquidation_bot/liquidateUnderwaterBorrowers.ts
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*/
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export async function liquidateUnderwaterBorrowers(
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lendingContract: any,
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priceFeedContract: any,
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signer: Signer
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): Promise<boolean> {
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// 步骤 1: 获取最近活跃的地址
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const uniqueAddresses = await getUniqueAddresses(lendingContract);
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if (uniqueAddresses.length === 0) {
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console.log('ℹ️ No active addresses found');
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return false;
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}
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console.log(`🔍 Checking ${uniqueAddresses.length} addresses for liquidation...`);
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const liquidatableAccounts: string[] = [];
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// 步骤 2: 检查每个地址是否可清算
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for (const address of uniqueAddresses) {
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try {
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// 直接调用合约的 isLiquidatable()，无需自己计算健康因子
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const isLiquidatable = await lendingContract.isLiquidatable(address);
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if (isLiquidatable) {
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// 应用清算阈值过滤（防止清算小额账户，gas 成本过高）
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const borrowBalance = await lendingContract.borrowBalanceOf(address);
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const baseToken = await lendingContract.baseToken();
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const basePrice = await priceFeedContract.getPrice(baseToken);
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// debtValue 计算：borrowBalance (6 decimals) * basePrice (30 decimals) / 1e6
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const debtValue = (BigInt(borrowBalance) * BigInt(basePrice)) / BigInt(10) ** BigInt(6);
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const debtValueInBaseUnit = Number(debtValue / (BigInt(10) ** BigInt(30))); // 转换为 USDC 单位
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// LIQUIDATION_THRESHOLD 是 6 decimals，需要转换为 30 decimals 来和 debtValue 比较
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// 10e6 * 1e24 = 10e30 (代表 $10)
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if (debtValue >= BigInt(LIQUIDATION_THRESHOLD) * BigInt(10) ** BigInt(24)) {
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console.log(`💰 Liquidatable: ${address}, Debt: $${debtValueInBaseUnit.toFixed(2)}`);
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liquidatableAccounts.push(address);
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} else {
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console.log(`⏭️ Skip (below threshold): ${address}, Debt: $${debtValueInBaseUnit.toFixed(2)}`);
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}
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}
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} catch (error) {
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console.error(`Error checking ${address}:`, error);
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}
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}
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// 步骤 3: 批量清算
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if (liquidatableAccounts.length > 0) {
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console.log(`\n🎯 Found ${liquidatableAccounts.length} liquidatable accounts`);
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console.log('📤 Sending liquidation transaction...');
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try {
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const liquidatorAddress = await signer.getAddress();
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const tx = await lendingContract.connect(signer).absorbMultiple(
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liquidatorAddress,
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liquidatableAccounts
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);
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console.log(`🔗 Transaction sent: ${tx.hash}`);
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const receipt = await tx.wait();
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console.log(`✅ Liquidation successful!`);
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console.log(` Gas used: ${receipt.gasUsed.toString()}`);
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console.log(` Block: ${receipt.blockNumber}`);
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return true;
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} catch (error) {
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console.error('❌ Liquidation transaction failed:', error);
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return false;
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}
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} else {
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console.log('✅ No liquidatable accounts found');
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return false;
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}
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}
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