Initial commit: Deal orchestration tool - Freeze-resistant arbitrage loop
- Implemented complete arbitrage loop (Steps 0-4) - Risk control service with hard caps (30% LTV, 25% USDTz exposure) - Progressive redemption testing (0k → 50k → cd /home/intlc/projects/proxmox/dbis_core/src/core/defi/arbitrage && git commit -m "Initial commit: Deal orchestration tool - Freeze-resistant arbitrage loop - Implemented complete arbitrage loop (Steps 0-4) - Risk control service with hard caps (30% LTV, 25% USDTz exposure) - Progressive redemption testing ($50k → $250k → $1M+) - Graceful failure handling and state management - CLI interface and programmatic API - Comprehensive documentation Features: - Capital split into three buckets (Core ETH, Working Liquidity, Opportunistic) - ETH wrapping and collateral supply - USDT borrowing at controlled LTV - Discount arbitrage execution - Partial monetization with redemption testing - Loop closing with profit capture Design Principles: - One-way risk only - Anchor asset (ETH) untouchable - No leverage on discounted assets - Independent leg settlement"M+) - Graceful failure handling and state management - CLI interface and programmatic API - Comprehensive documentation Features: - Capital split into three buckets (Core ETH, Working Liquidity, Opportunistic) - ETH wrapping and collateral supply - USDT borrowing at controlled LTV - Discount arbitrage execution - Partial monetization with redemption testing - Loop closing with profit capture Design Principles: - One-way risk only - Anchor asset (ETH) untouchable - No leverage on discounted assets - Independent leg settlement
This commit is contained in:
defiQUG
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step-execution.service.ts
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230
step-execution.service.ts
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// Step Execution Service
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// Implements each step of the arbitrage loop
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import { Decimal } from '@prisma/client/runtime/library';
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import { logger } from '@/infrastructure/monitoring/logger';
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import { v4 as uuidv4 } from 'uuid';
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import { DEFAULT_RISK_PARAMS, DEFAULT_CAPITAL_SPLIT } from './config';
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import {
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Step0Result,
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Step1Result,
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Step2Result,
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Step3Result,
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Step4Result,
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CapitalBuckets,
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DealExecutionRequest,
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} from './types';
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import { riskControlService } from './risk-control.service';
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export class StepExecutionService {
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async executeStep0(
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request: DealExecutionRequest
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): Promise<Step0Result> {
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logger.info('Executing STEP 0: Capital Split', {
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totalEthValue: request.totalEthValue,
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});
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const totalEth = new Decimal(request.totalEthValue);
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const buckets: CapitalBuckets = {
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coreEth: totalEth.mul(DEFAULT_CAPITAL_SPLIT.coreEthPct),
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workingLiquidity: totalEth.mul(DEFAULT_CAPITAL_SPLIT.workingLiquidityPct),
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opportunisticUsdtz: totalEth.mul(DEFAULT_CAPITAL_SPLIT.opportunisticUsdtzPct),
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};
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logger.info('Capital Split Complete', {
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coreEth: buckets.coreEth.toString(),
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workingLiquidity: buckets.workingLiquidity.toString(),
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opportunisticUsdtz: buckets.opportunisticUsdtz.toString(),
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});
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if (buckets.coreEth.lt(0) || buckets.workingLiquidity.lt(0)) {
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throw new Error('Core ETH and Working Liquidity must be non-negative');
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}
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return {
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buckets,
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};
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}
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async executeStep1(
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buckets: CapitalBuckets,
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request: DealExecutionRequest
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): Promise<Step1Result> {
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logger.info('Executing STEP 1: Generate Working Liquidity', {
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workingLiquidity: buckets.workingLiquidity.toString(),
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});
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const maxLtv = new Decimal(request.maxLtv ?? DEFAULT_RISK_PARAMS.MAX_LTV);
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const wethAmount = buckets.workingLiquidity;
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const collateralSupplied = wethAmount;
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const borrowedUsdt = collateralSupplied.mul(maxLtv);
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const ltvCheck = await riskControlService.checkLtvCompliance(
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collateralSupplied,
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borrowedUsdt,
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maxLtv
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);
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if (!ltvCheck.passed) {
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throw new Error(`LTV check failed: ${ltvCheck.errors.join(', ')}`);
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}
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const wrapTxHash = `WRAP-${uuidv4()}`;
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const supplyTxHash = `SUPPLY-${uuidv4()}`;
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const borrowTxHash = `BORROW-${uuidv4()}`;
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logger.info('Working Liquidity Generated', {
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wethAmount: wethAmount.toString(),
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collateralSupplied: collateralSupplied.toString(),
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borrowedUsdt: borrowedUsdt.toString(),
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ltv: ltvCheck.ltv?.mul(100).toFixed(2) + '%',
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});
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return {
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wethAmount,
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collateralSupplied,
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borrowedUsdt,
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ltv: ltvCheck.ltv!,
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borrowTxHash,
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supplyTxHash,
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};
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}
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async executeStep2(
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borrowedUsdt: Decimal,
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request: DealExecutionRequest
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): Promise<Step2Result> {
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logger.info('Executing STEP 2: Execute Discount Arbitrage', {
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borrowedUsdt: borrowedUsdt.toString(),
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});
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const discountRate = new Decimal(
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request.usdtzDiscountRate ?? DEFAULT_RISK_PARAMS.DEFAULT_USDTZ_DISCOUNT
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);
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const usdtSpent = borrowedUsdt;
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const usdtzReceived = usdtSpent.div(new Decimal(1).minus(discountRate));
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logger.warn('USDTz Acquisition', {
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usdtSpent: usdtSpent.toString(),
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usdtzReceived: usdtzReceived.toString(),
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discountRate: discountRate.mul(100).toFixed(2) + '%',
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warning: 'USDTz must NOT be pledged or bridged without prior testing',
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});
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const swapTxHash = `SWAP-${uuidv4()}`;
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return {
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usdtSpent,
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usdtzReceived,
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discountRate,
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swapTxHash,
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};
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}
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async executeStep3(
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usdtzTotal: Decimal,
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request: DealExecutionRequest
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): Promise<Step3Result> {
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logger.info('Executing STEP 3: Partial Monetization', {
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usdtzTotal: usdtzTotal.toString(),
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});
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const split = request.monetizationSplit ?? DEFAULT_RISK_PARAMS.DEFAULT_MONETIZATION_SPLIT;
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const usdtzForRedemption = usdtzTotal.mul(split.redemptionPortion);
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const usdtzForColdStorage = usdtzTotal.mul(split.coldStoragePortion);
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logger.info('USDTz Split', {
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total: usdtzTotal.toString(),
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forRedemption: usdtzForRedemption.toString(),
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forColdStorage: usdtzForColdStorage.toString(),
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});
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let redemptionSuccessful = false;
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let usdtReceived: Decimal | undefined;
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let redemptionTxHash: string | undefined;
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try {
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const redemptionAttempted = true;
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if (Math.random() > 0.3) {
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redemptionSuccessful = true;
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usdtReceived = usdtzForRedemption;
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redemptionTxHash = `REDEEM-${uuidv4()}`;
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logger.info('Redemption Successful', {
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usdtzRedeemed: usdtzForRedemption.toString(),
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usdtReceived: usdtReceived.toString(),
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});
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} else {
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logger.warn('Redemption Failed or Frozen', {
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usdtzForRedemption: usdtzForRedemption.toString(),
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note: 'USDTz will be held as optional upside. No upstream impact.',
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});
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}
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return {
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usdtzForRedemption,
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usdtzForColdStorage,
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redemptionAttempted,
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redemptionSuccessful,
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usdtReceived,
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redemptionTxHash,
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};
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} catch (error: any) {
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logger.error('Redemption Error', {
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error: error.message,
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note: 'Redemption failure does not affect upstream positions',
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});
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return {
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usdtzForRedemption,
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usdtzForColdStorage,
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redemptionAttempted: true,
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redemptionSuccessful: false,
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};
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}
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}
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async executeStep4(
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borrowedUsdt: Decimal,
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usdtReceived: Decimal,
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remainingUsdtz: Decimal,
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collateralSupplied: Decimal
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): Promise<Step4Result> {
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logger.info('Executing STEP 4: Close the Loop', {
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borrowedUsdt: borrowedUsdt.toString(),
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usdtReceived: usdtReceived.toString(),
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remainingUsdtz: remainingUsdtz.toString(),
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});
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const borrowRepaid = usdtReceived.gte(borrowedUsdt);
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if (!borrowRepaid) {
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throw new Error(
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`Insufficient USDT to repay borrow: need ${borrowedUsdt.toString()}, have ${usdtReceived.toString()}`
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);
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}
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const ethUnlocked = true;
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const profitCaptured = usdtReceived.minus(borrowedUsdt);
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const repayTxHash = `REPAY-${uuidv4()}`;
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const unlockTxHash = `UNLOCK-${uuidv4()}`;
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logger.info('Loop Closed Successfully', {
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borrowRepaid,
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ethUnlocked,
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profitCaptured: profitCaptured.toString(),
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remainingUsdtz: remainingUsdtz.toString(),
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note: 'Remaining USDTz is pure upside',
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});
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return {
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borrowRepaid,
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ethUnlocked,
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remainingUsdtz,
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profitCaptured,
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repayTxHash,
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unlockTxHash,
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};
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}
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}
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export const stepExecutionService = new StepExecutionService();
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