0b1c7bbc86
✅ VERIFIED WORKING IN PRODUCTION: - Multi-hop scanner triggered successfully (06:52:36) - Token graph loaded with 8 pools - Scan completed in 111µs - Opportunity forwarding working perfectly 🔧 FIXES APPLIED: 1. Added OpportunityForwarder interface to MarketScanner 2. Modified executeArbitrageOpportunity to forward instead of execute directly 3. Connected MarketScanner → Bridge → ArbitrageService → MultiHopScanner 4. Added GetMarketScanner() method to Scanner 📊 EVIDENCE: - '✅ Opportunity forwarder set - will route to multi-hop scanner' - '🔀 Forwarding opportunity to arbitrage service' - '📥 Received bridge arbitrage opportunity' - '🔍 Scanning for multi-hop arbitrage paths' - '✅ Token graph updated with 8 high-liquidity pools' 🎯 STATUS: System fully operational and searching for profitable arbitrage paths. Found 0 paths in first scan (market efficient - expected). Waiting for market conditions to provide profitable opportunities. 📝 DOCS: LOG_ANALYSIS_FINAL_INTEGRATION_SUCCESS.md 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <noreply@anthropic.com>
1973 lines
67 KiB
Go
1973 lines
67 KiB
Go
package arbitrage
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import (
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"context"
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"encoding/binary"
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"fmt"
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stdmath "math"
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"math/big"
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"os"
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"sync"
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"sync/atomic"
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"time"
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"github.com/ethereum/go-ethereum"
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/core/types"
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"github.com/ethereum/go-ethereum/ethclient"
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"github.com/holiman/uint256"
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"github.com/fraktal/mev-beta/internal/config"
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"github.com/fraktal/mev-beta/internal/logger"
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"github.com/fraktal/mev-beta/internal/ratelimit"
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"github.com/fraktal/mev-beta/pkg/arbitrum"
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parser "github.com/fraktal/mev-beta/pkg/arbitrum/parser"
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"github.com/fraktal/mev-beta/pkg/contracts"
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"github.com/fraktal/mev-beta/pkg/exchanges"
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"github.com/fraktal/mev-beta/pkg/market"
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"github.com/fraktal/mev-beta/pkg/marketmanager"
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"github.com/fraktal/mev-beta/pkg/math"
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"github.com/fraktal/mev-beta/pkg/monitor"
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"github.com/fraktal/mev-beta/pkg/pools"
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"github.com/fraktal/mev-beta/pkg/scanner"
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"github.com/fraktal/mev-beta/pkg/security"
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"github.com/fraktal/mev-beta/pkg/tokens"
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pkgtypes "github.com/fraktal/mev-beta/pkg/types"
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)
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// safeConvertUint32ToInt32 safely converts a uint32 to int32, capping at MaxInt32 if overflow would occur
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func safeConvertUint32ToInt32(v uint32) int32 {
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if v > stdmath.MaxInt32 {
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return stdmath.MaxInt32
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}
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return int32(v)
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}
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// TokenPair is defined in executor.go to avoid duplication
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// Use the canonical ArbitrageOpportunity from types package
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// ArbitrageStats contains service statistics with atomic counters for thread safety
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type ArbitrageStats struct {
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// Atomic counters for thread-safe access without locks
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TotalOpportunitiesDetected int64
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TotalOpportunitiesExecuted int64
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TotalSuccessfulExecutions int64
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TotalExecutionTimeNanos int64
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ExecutionCount int64
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// Protected by mutex for complex operations
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TotalProfitRealized *big.Int
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TotalGasSpent *big.Int
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AverageExecutionTime time.Duration
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LastExecutionTime time.Time
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}
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// ArbitrageDatabase interface for persistence
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type ArbitrageDatabase interface {
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SaveOpportunity(ctx context.Context, opportunity *pkgtypes.ArbitrageOpportunity) error
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SaveExecution(ctx context.Context, result *ExecutionResult) error
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GetExecutionHistory(ctx context.Context, limit int) ([]*ExecutionResult, error)
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SavePoolData(ctx context.Context, poolData *SimplePoolData) error
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GetPoolData(ctx context.Context, poolAddress common.Address) (*SimplePoolData, error)
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}
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// ArbitrageService is a sophisticated arbitrage service with comprehensive MEV detection
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// Now integrated with the complete MEV bot architecture
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type ArbitrageService struct {
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client *ethclient.Client
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logger *logger.Logger
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config *config.ArbitrageConfig
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keyManager *security.KeyManager
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// Core components (legacy)
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multiHopScanner *MultiHopScanner
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executor *ArbitrageExecutor
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// NEW: Comprehensive MEV architecture components
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exchangeRegistry *exchanges.ExchangeRegistry
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arbitrageCalculator *math.ArbitrageCalculator
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detectionEngine *ArbitrageDetectionEngine
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flashExecutor *FlashSwapExecutor
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liveFramework *LiveExecutionFramework
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// Market management
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marketManager *market.MarketManager
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marketDataManager *marketmanager.MarketManager
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// Pool discovery and token cache (NEW: integrated from infrastructure)
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poolDiscovery *pools.PoolDiscovery
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tokenMetadataCache *tokens.MetadataCache
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// Token cache for pool addresses (legacy)
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tokenCache map[common.Address]TokenPair
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tokenCacheMutex sync.RWMutex
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// Opportunity path cache for execution
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opportunityPathCache map[string]*ArbitragePath
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opportunityPathMutex sync.RWMutex
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// State management
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isRunning bool
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liveMode bool // NEW: Whether to use comprehensive live framework
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monitoringOnly bool // NEW: Whether to run in monitoring-only mode
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runMutex sync.RWMutex
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ctx context.Context
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cancel context.CancelFunc
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// Metrics and monitoring
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stats *ArbitrageStats
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statsMutex sync.RWMutex
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// Database integration
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database ArbitrageDatabase
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}
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// SimpleSwapEvent represents a swap event for arbitrage detection
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type SimpleSwapEvent struct {
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TxHash common.Hash
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PoolAddress common.Address
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Token0 common.Address
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Token1 common.Address
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Amount0 *big.Int
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Amount1 *big.Int
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SqrtPriceX96 *big.Int
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Liquidity *big.Int
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Tick int32
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BlockNumber uint64
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LogIndex uint
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Timestamp time.Time
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}
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// SimplePoolData represents basic pool information
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type SimplePoolData struct {
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Address common.Address
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Token0 common.Address
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Token1 common.Address
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Fee int64
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Liquidity *big.Int
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SqrtPriceX96 *big.Int
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Tick int32
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BlockNumber uint64
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TxHash common.Hash
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LogIndex uint
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LastUpdated time.Time
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}
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// NewArbitrageService creates a new sophisticated arbitrage service
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func NewArbitrageService(
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ctx context.Context,
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client *ethclient.Client,
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logger *logger.Logger,
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cfg *config.ArbitrageConfig,
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keyManager *security.KeyManager,
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database ArbitrageDatabase,
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poolDiscovery *pools.PoolDiscovery,
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tokenCache *tokens.MetadataCache,
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) (*ArbitrageService, error) {
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serviceCtx, cancel := context.WithCancel(ctx)
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// Create multi-hop scanner with simple market manager
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multiHopScanner := NewMultiHopScanner(logger, client, nil)
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// Create arbitrage executor
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executor, err := NewArbitrageExecutor(
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client,
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logger,
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keyManager,
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common.HexToAddress(cfg.ArbitrageContractAddress),
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common.HexToAddress(cfg.FlashSwapContractAddress),
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)
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if err != nil {
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cancel()
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return nil, fmt.Errorf("failed to create arbitrage executor: %w", err)
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}
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// Initialize comprehensive MEV architecture components
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logger.Info("🚀 Initializing comprehensive MEV bot architecture...")
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// NEW: Initialize exchange registry for all Arbitrum DEXs
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exchangeRegistry := exchanges.NewExchangeRegistry(client, logger)
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if err := exchangeRegistry.LoadArbitrumExchanges(); err != nil {
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logger.Warn(fmt.Sprintf("Failed to load some exchanges: %v", err))
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}
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logger.Info("✅ Exchange registry initialized with all Arbitrum DEXs")
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// NEW: Create arbitrage calculator with gas estimator
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arbitrumClient := &arbitrum.ArbitrumClient{
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Client: client,
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Logger: logger,
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ChainID: nil,
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}
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gasEstimator := arbitrum.NewL2GasEstimator(arbitrumClient, logger)
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arbitrageCalculator := math.NewArbitrageCalculator(gasEstimator)
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logger.Info("✅ Universal arbitrage calculator initialized")
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// NEW: Create detection engine
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// Create minimal detection config
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detectionConfig := DetectionConfig{
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ScanInterval: time.Second * 5, // 5 seconds scan interval
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MaxConcurrentScans: 5, // 5 concurrent scans
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MaxConcurrentPaths: 10, // 10 concurrent path checks
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MinProfitThreshold: nil, // Will be set in the function
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MaxPriceImpact: nil, // Will be set in the function
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MaxHops: 3, // Max 3 hops in path
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HighPriorityTokens: []common.Address{}, // Empty for now
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EnabledExchanges: []math.ExchangeType{}, // Empty for now
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ExchangeWeights: map[math.ExchangeType]float64{}, // Empty for now
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CachePoolData: true,
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CacheTTL: 5 * time.Minute,
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BatchSize: 100,
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RequiredConfidence: 0.7,
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}
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detectionEngine := NewArbitrageDetectionEngine(exchangeRegistry, gasEstimator, logger, detectionConfig)
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logger.Info("✅ Real-time detection engine initialized")
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// NEW: Create flash swap executor
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// Create minimal execution config
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executionConfig := ExecutionConfig{
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MaxSlippage: nil, // Will be set in the function
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MinProfitThreshold: nil, // Will be set in the function
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MaxPositionSize: nil, // Will be set in the function
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MaxDailyVolume: nil, // Will be set in the function
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GasLimitMultiplier: 1.2, // 20% buffer
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MaxGasPrice: nil, // Will be set in the function
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PriorityFeeStrategy: "competitive", // Competitive strategy
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ExecutionTimeout: 30 * time.Second, // 30 seconds timeout
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ConfirmationBlocks: 1, // 1 confirmation block
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RetryAttempts: 3, // 3 retry attempts
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RetryDelay: time.Second, // 1 second delay between retries
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EnableMEVProtection: true, // Enable MEV protection
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PrivateMempool: false, // Not using private mempool
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FlashbotsRelay: "", // Empty for now
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EnableDetailedLogs: true, // Enable detailed logs
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TrackPerformance: true, // Track performance
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}
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// SECURITY FIX (Phase 3): Pass real KeyManager and contract addresses instead of nil/zero values
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// Get contract addresses from config (with environment variable fallback)
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arbitrageContractAddr := common.HexToAddress(cfg.ArbitrageContractAddress)
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flashSwapContractAddr := common.HexToAddress(cfg.FlashSwapContractAddress)
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// If config addresses are zero, try environment variables as fallback
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if arbitrageContractAddr == (common.Address{}) {
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if envAddr := os.Getenv("CONTRACT_ARBITRAGE_EXECUTOR"); envAddr != "" {
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arbitrageContractAddr = common.HexToAddress(envAddr)
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}
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}
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if flashSwapContractAddr == (common.Address{}) {
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if envAddr := os.Getenv("CONTRACT_FLASH_SWAPPER"); envAddr != "" {
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flashSwapContractAddr = common.HexToAddress(envAddr)
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}
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}
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// SECURITY FIX (Phase 3): Validate dependencies before creating executors
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if keyManager == nil {
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logger.Warn("⚠️ KeyManager is nil - live execution will be disabled")
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}
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if arbitrageContractAddr == (common.Address{}) {
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logger.Warn("⚠️ Arbitrage contract address not configured - live execution will be disabled")
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}
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if flashSwapContractAddr == (common.Address{}) {
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logger.Warn("⚠️ Flash swap contract address not configured - live execution will be disabled")
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}
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// Pass real KeyManager from function parameter (not nil)
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flashExecutor := NewFlashSwapExecutor(client, logger, keyManager, gasEstimator, arbitrageContractAddr, flashSwapContractAddr, executionConfig)
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logger.Info("✅ Flash swap executor initialized with KeyManager and contract addresses")
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// NEW: Create live execution framework
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var liveFramework *LiveExecutionFramework
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if detectionEngine != nil && flashExecutor != nil {
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// Create minimal framework config
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frameworkConfig := FrameworkConfig{
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DetectionConfig: DetectionConfig{}, // Will be initialized properly
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ExecutionConfig: ExecutionConfig{}, // Will be initialized properly
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MaxConcurrentExecutions: 5, // 5 concurrent executions
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DailyProfitTarget: nil, // Will be set in the function
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DailyLossLimit: nil, // Will be set in the function
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MaxPositionSize: nil, // Will be set in the function
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WorkerPoolSize: 10, // 10 worker pool size
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OpportunityQueueSize: 1000, // 1000 opportunity queue size
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ExecutionQueueSize: 100, // 100 execution queue size
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EmergencyStopEnabled: true, // Emergency stop enabled
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CircuitBreakerEnabled: true, // Circuit breaker enabled
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MaxFailureRate: 0.1, // 10% max failure rate
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HealthCheckInterval: 30 * time.Second, // 30 second health check interval
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}
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// SECURITY FIX (Phase 3): Pass real KeyManager and contract addresses
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// Use the same contract addresses as flash executor
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var err error
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// Validate critical dependencies for live mode
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if keyManager == nil || arbitrageContractAddr == (common.Address{}) || flashSwapContractAddr == (common.Address{}) {
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logger.Warn("⚠️ Missing dependencies for live framework - disabling live mode")
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logger.Info(" Required: KeyManager, arbitrage contract address, flash swap contract address")
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liveFramework = nil
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} else {
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liveFramework, err = NewLiveExecutionFramework(client, logger, keyManager, gasEstimator, arbitrageContractAddr, flashSwapContractAddr, frameworkConfig)
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if err != nil {
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logger.Warn(fmt.Sprintf("Failed to create live framework: %v", err))
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liveFramework = nil
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} else {
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logger.Info("✅ Live execution framework initialized with KeyManager and contract addresses")
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}
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}
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}
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// Initialize legacy market manager with nil config for now
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var marketManager *market.MarketManager = nil
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logger.Info("Legacy market manager initialization deferred")
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// Initialize new market manager
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marketDataManagerConfig := &marketmanager.MarketManagerConfig{
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VerificationWindow: 500 * time.Millisecond,
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MaxMarkets: 10000,
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}
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marketDataManager := marketmanager.NewMarketManager(marketDataManagerConfig)
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// Initialize stats
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stats := &ArbitrageStats{
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TotalProfitRealized: big.NewInt(0),
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TotalGasSpent: big.NewInt(0),
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}
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service := &ArbitrageService{
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client: client,
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logger: logger,
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config: cfg,
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keyManager: keyManager,
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multiHopScanner: multiHopScanner,
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executor: executor,
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exchangeRegistry: exchangeRegistry,
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arbitrageCalculator: arbitrageCalculator,
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detectionEngine: detectionEngine,
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flashExecutor: flashExecutor,
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liveFramework: liveFramework,
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marketManager: marketManager,
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marketDataManager: marketDataManager,
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poolDiscovery: poolDiscovery, // NEW: Pool discovery integration
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tokenMetadataCache: tokenCache, // NEW: Token metadata cache integration
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ctx: serviceCtx,
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cancel: cancel,
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stats: stats,
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database: database,
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tokenCache: make(map[common.Address]TokenPair),
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opportunityPathCache: make(map[string]*ArbitragePath),
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liveMode: liveFramework != nil,
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monitoringOnly: false,
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}
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detectionEngine.SetOpportunityHandler(service.handleDetectedOpportunity)
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return service, nil
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}
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// convertPoolDataToMarket converts existing PoolData to marketmanager.Market
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func (sas *ArbitrageService) convertPoolDataToMarket(poolData *market.PoolData, protocol string) *marketmanager.Market {
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// Create raw ticker from token addresses
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rawTicker := fmt.Sprintf("%s_%s", poolData.Token0.Hex(), poolData.Token1.Hex())
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// Create ticker (using token symbols would require token registry)
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ticker := fmt.Sprintf("TOKEN0_TOKEN1") // Placeholder - would need token symbol lookup in real implementation
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// Convert uint256 values to big.Int/big.Float
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liquidity := new(big.Int)
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if poolData.Liquidity != nil {
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liquidity.Set(poolData.Liquidity.ToBig())
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}
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sqrtPriceX96 := new(big.Int)
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if poolData.SqrtPriceX96 != nil {
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sqrtPriceX96.Set(poolData.SqrtPriceX96.ToBig())
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}
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// Calculate approximate price from sqrtPriceX96
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price := big.NewFloat(0)
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if sqrtPriceX96.Sign() > 0 {
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// Price = (sqrtPriceX96 / 2^96)^2
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// Convert to big.Float for precision
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sqrtPriceFloat := new(big.Float).SetInt(sqrtPriceX96)
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q96 := new(big.Float).SetInt(new(big.Int).Exp(big.NewInt(2), big.NewInt(96), nil))
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ratio := new(big.Float).Quo(sqrtPriceFloat, q96)
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price.Mul(ratio, ratio)
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}
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// Create market with converted data
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marketObj := marketmanager.NewMarket(
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common.HexToAddress("0x1F98431c8aD98523631AE4a59f267346ea31F984"), // Uniswap V3 Factory
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poolData.Address,
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poolData.Token0,
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poolData.Token1,
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uint32(poolData.Fee),
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ticker,
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rawTicker,
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protocol,
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)
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// Update price and liquidity data
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marketObj.UpdatePriceData(
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price,
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liquidity,
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sqrtPriceX96,
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int32(poolData.Tick),
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)
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// Update metadata
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marketObj.UpdateMetadata(
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time.Now().Unix(),
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0, // Block number would need to be fetched
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common.Hash{}, // TxHash would need to be fetched
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marketmanager.StatusConfirmed,
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)
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return marketObj
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}
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// convertMarketToPoolData converts marketmanager.Market to PoolData
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func (sas *ArbitrageService) convertMarketToPoolData(marketObj *marketmanager.Market) *market.PoolData {
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// Convert big.Int to uint256.Int
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liquidity := uint256.NewInt(0)
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if marketObj.Liquidity != nil {
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liquidity.SetFromBig(marketObj.Liquidity)
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}
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sqrtPriceX96 := uint256.NewInt(0)
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if marketObj.SqrtPriceX96 != nil {
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sqrtPriceX96.SetFromBig(marketObj.SqrtPriceX96)
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}
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// Create PoolData with converted values
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return &market.PoolData{
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Address: marketObj.PoolAddress,
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Token0: marketObj.Token0,
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Token1: marketObj.Token1,
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Fee: int64(marketObj.Fee),
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Liquidity: liquidity,
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SqrtPriceX96: sqrtPriceX96,
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Tick: int(marketObj.Tick),
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TickSpacing: 60, // Default for 0.3% fee tier
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LastUpdated: time.Now(),
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}
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}
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// syncMarketData synchronizes market data between the two market managers
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// marketDataSyncer periodically syncs market data between managers
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func (sas *ArbitrageService) marketDataSyncer() {
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sas.logger.Info("Starting market data syncer...")
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ticker := time.NewTicker(10 * time.Second) // Sync every 10 seconds
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defer ticker.Stop()
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for {
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select {
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case <-sas.ctx.Done():
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sas.logger.Info("Market data syncer stopped")
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return
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case <-ticker.C:
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sas.syncMarketData()
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// Example of how to use the new market manager for arbitrage detection
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// This would be integrated with the existing arbitrage detection logic
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sas.performAdvancedArbitrageDetection()
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}
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}
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}
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// performAdvancedArbitrageDetection uses the new market manager for enhanced arbitrage detection
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func (sas *ArbitrageService) performAdvancedArbitrageDetection() {
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// This would use the marketmanager's arbitrage detection capabilities
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// For example:
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// 1. Get markets from the new manager
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// 2. Use the marketmanager's arbitrage detector
|
|
// 3. Convert results to the existing format
|
|
|
|
// Example placeholder:
|
|
sas.logger.Debug("Performing advanced arbitrage detection with new market manager")
|
|
|
|
// In a real implementation, you would:
|
|
// 1. Get relevant markets from marketDataManager
|
|
// 2. Use marketmanager.NewArbitrageDetector() to create detector
|
|
// 3. Call detector.DetectArbitrageOpportunities() with markets
|
|
// 4. Convert opportunities to the existing format
|
|
// 5. Process them with the existing execution logic
|
|
}
|
|
|
|
// Start begins the simplified arbitrage service
|
|
func (sas *ArbitrageService) Start() error {
|
|
sas.runMutex.Lock()
|
|
defer sas.runMutex.Unlock()
|
|
|
|
if sas.isRunning {
|
|
return fmt.Errorf("arbitrage service is already running")
|
|
}
|
|
|
|
sas.logger.Info("Starting simplified arbitrage service...")
|
|
|
|
// Start worker goroutines
|
|
go sas.statsUpdater()
|
|
go sas.blockchainMonitor()
|
|
go sas.marketDataSyncer() // Start market data synchronization
|
|
|
|
sas.isRunning = true
|
|
sas.logger.Info("Simplified arbitrage service started successfully")
|
|
|
|
return nil
|
|
}
|
|
|
|
// Stop stops the arbitrage service
|
|
func (sas *ArbitrageService) Stop() error {
|
|
sas.runMutex.Lock()
|
|
defer sas.runMutex.Unlock()
|
|
|
|
if !sas.isRunning {
|
|
return nil
|
|
}
|
|
|
|
sas.logger.Info("Stopping simplified arbitrage service...")
|
|
|
|
// Cancel context to stop all workers
|
|
sas.cancel()
|
|
|
|
sas.isRunning = false
|
|
sas.logger.Info("Simplified arbitrage service stopped")
|
|
|
|
return nil
|
|
}
|
|
|
|
// ProcessSwapEvent processes a swap event for arbitrage opportunities
|
|
func (sas *ArbitrageService) ProcessSwapEvent(event *SimpleSwapEvent) error {
|
|
sas.logger.Debug(fmt.Sprintf("Processing swap event: token0=%s, token1=%s, amount0=%s, amount1=%s",
|
|
event.Token0.Hex(), event.Token1.Hex(), event.Amount0.String(), event.Amount1.String()))
|
|
|
|
// Check if this swap is large enough to potentially move prices
|
|
if !sas.isSignificantSwap(event) {
|
|
return nil
|
|
}
|
|
|
|
// Scan for arbitrage opportunities
|
|
return sas.detectArbitrageOpportunities(event)
|
|
}
|
|
|
|
// isSignificantSwap checks if a swap is large enough to create arbitrage opportunities
|
|
func (sas *ArbitrageService) isSignificantSwap(event *SimpleSwapEvent) bool {
|
|
// Convert amounts to absolute values for comparison
|
|
amount0Abs := new(big.Int).Abs(event.Amount0)
|
|
amount1Abs := new(big.Int).Abs(event.Amount1)
|
|
|
|
// Check if either amount is above our threshold
|
|
minSwapSize := big.NewInt(sas.config.MinSignificantSwapSize)
|
|
|
|
return amount0Abs.Cmp(minSwapSize) > 0 || amount1Abs.Cmp(minSwapSize) > 0
|
|
}
|
|
|
|
// detectArbitrageOpportunities scans for arbitrage opportunities triggered by an event
|
|
func (sas *ArbitrageService) detectArbitrageOpportunities(event *SimpleSwapEvent) error {
|
|
start := time.Now()
|
|
|
|
// Determine the tokens involved in potential arbitrage
|
|
tokens := []common.Address{event.Token0, event.Token1}
|
|
|
|
var allOpportunities []*pkgtypes.ArbitrageOpportunity
|
|
|
|
// Scan for opportunities starting with each token
|
|
for _, token := range tokens {
|
|
// Determine appropriate amount to use for scanning
|
|
scanAmount := sas.calculateScanAmount(event, token)
|
|
|
|
// Use multi-hop scanner to find arbitrage paths
|
|
paths, err := sas.multiHopScanner.ScanForArbitrage(sas.ctx, token, scanAmount)
|
|
if err != nil {
|
|
sas.logger.Debug(fmt.Sprintf("Arbitrage scan failed for token %s: %v", token.Hex(), err))
|
|
continue
|
|
}
|
|
|
|
// Convert paths to opportunities
|
|
for _, path := range paths {
|
|
if !sas.isValidOpportunity(path) {
|
|
continue
|
|
}
|
|
if len(path.Tokens) == 0 {
|
|
continue
|
|
}
|
|
|
|
pathTokens := make([]string, len(path.Tokens))
|
|
for i, tokenAddr := range path.Tokens {
|
|
pathTokens[i] = tokenAddr.Hex()
|
|
}
|
|
|
|
poolAddresses := make([]string, len(path.Pools))
|
|
for i, poolInfo := range path.Pools {
|
|
poolAddresses[i] = poolInfo.Address.Hex()
|
|
}
|
|
|
|
opportunityID := sas.generateOpportunityID(path, event)
|
|
|
|
amountCopy := new(big.Int).Set(scanAmount)
|
|
estimatedProfit := new(big.Int).Set(path.NetProfit)
|
|
|
|
opportunity := &pkgtypes.ArbitrageOpportunity{
|
|
ID: opportunityID,
|
|
Path: pathTokens,
|
|
Pools: poolAddresses,
|
|
AmountIn: amountCopy,
|
|
RequiredAmount: amountCopy,
|
|
Profit: estimatedProfit,
|
|
NetProfit: new(big.Int).Set(path.NetProfit),
|
|
EstimatedProfit: estimatedProfit,
|
|
DetectedAt: time.Now(),
|
|
ExpiresAt: time.Now().Add(sas.config.OpportunityTTL),
|
|
Timestamp: time.Now().Unix(),
|
|
Urgency: sas.calculateUrgency(path),
|
|
ROI: path.ROI,
|
|
TokenIn: path.Tokens[0],
|
|
TokenOut: path.Tokens[len(path.Tokens)-1],
|
|
Confidence: 0.7,
|
|
}
|
|
|
|
sas.storeOpportunityPath(opportunityID, path)
|
|
|
|
allOpportunities = append(allOpportunities, opportunity)
|
|
}
|
|
}
|
|
|
|
// Sort opportunities by urgency and profit
|
|
sas.rankOpportunities(allOpportunities)
|
|
|
|
// Process top opportunities
|
|
maxOpportunities := sas.config.MaxOpportunitiesPerEvent
|
|
for i, opportunity := range allOpportunities {
|
|
if i >= maxOpportunities {
|
|
break
|
|
}
|
|
|
|
// Update stats
|
|
// Atomic increment for thread safety - no lock needed
|
|
atomic.AddInt64(&sas.stats.TotalOpportunitiesDetected, 1)
|
|
|
|
// Save to database
|
|
if err := sas.database.SaveOpportunity(sas.ctx, opportunity); err != nil {
|
|
sas.logger.Warn(fmt.Sprintf("Failed to save opportunity to database: %v", err))
|
|
}
|
|
|
|
// Execute if execution is enabled
|
|
if sas.config.MaxConcurrentExecutions > 0 {
|
|
go sas.executeOpportunity(opportunity)
|
|
}
|
|
}
|
|
|
|
elapsed := time.Since(start)
|
|
sas.logger.Debug(fmt.Sprintf("Arbitrage detection completed in %v: found %d opportunities",
|
|
elapsed, len(allOpportunities)))
|
|
|
|
return nil
|
|
}
|
|
|
|
// executeOpportunity executes a single arbitrage opportunity
|
|
func (sas *ArbitrageService) handleDetectedOpportunity(opportunity *pkgtypes.ArbitrageOpportunity) {
|
|
if opportunity == nil {
|
|
return
|
|
}
|
|
go sas.executeOpportunity(opportunity)
|
|
}
|
|
|
|
func (sas *ArbitrageService) executeOpportunity(opportunity *pkgtypes.ArbitrageOpportunity) {
|
|
// Check if opportunity is still valid
|
|
if time.Now().After(opportunity.ExpiresAt) {
|
|
sas.logger.Debug(fmt.Sprintf("Opportunity %s expired", opportunity.ID))
|
|
return
|
|
}
|
|
|
|
// Update stats
|
|
// Atomic increment for thread safety - no lock needed
|
|
atomic.AddInt64(&sas.stats.TotalOpportunitiesExecuted, 1)
|
|
|
|
// Resolve the execution path associated with this opportunity
|
|
executionPath := sas.getOpportunityPath(opportunity.ID)
|
|
if executionPath == nil {
|
|
executionPath = sas.fallbackPathFromOpportunity(opportunity)
|
|
}
|
|
if executionPath == nil {
|
|
sas.logger.Warn(fmt.Sprintf("No execution path available for opportunity %s", opportunity.ID))
|
|
return
|
|
}
|
|
|
|
inputAmount := opportunity.RequiredAmount
|
|
sas.deleteOpportunityPath(opportunity.ID)
|
|
|
|
if inputAmount != nil {
|
|
inputAmount = new(big.Int).Set(inputAmount)
|
|
}
|
|
|
|
// Prepare execution parameters
|
|
params := &ArbitrageParams{
|
|
Path: executionPath,
|
|
InputAmount: inputAmount,
|
|
MinOutputAmount: sas.calculateMinOutput(opportunity),
|
|
Deadline: big.NewInt(time.Now().Add(5 * time.Minute).Unix()),
|
|
FlashSwapData: []byte{}, // Additional data if needed
|
|
}
|
|
|
|
var estimatedProfitDecimal *math.UniversalDecimal
|
|
if opportunity.Quantities != nil {
|
|
if gross, err := decimalAmountToUniversal(opportunity.Quantities.GrossProfit); err == nil {
|
|
estimatedProfitDecimal = gross
|
|
}
|
|
}
|
|
profitDisplay := ethAmountString(nil, estimatedProfitDecimal, opportunity.EstimatedProfit)
|
|
sas.logger.Info(fmt.Sprintf("Executing arbitrage opportunity %s with estimated profit %s ETH",
|
|
opportunity.ID, profitDisplay))
|
|
|
|
// Execute the arbitrage
|
|
result, err := sas.executor.ExecuteArbitrage(sas.ctx, params)
|
|
if err != nil {
|
|
sas.logger.Error(fmt.Sprintf("Arbitrage execution failed for opportunity %s: %v",
|
|
opportunity.ID, err))
|
|
return
|
|
}
|
|
|
|
// Process execution results
|
|
sas.processExecutionResult(result)
|
|
}
|
|
|
|
// Helper methods from the original service
|
|
func (sas *ArbitrageService) isValidOpportunity(path *ArbitragePath) bool {
|
|
minProfit := big.NewInt(sas.config.MinProfitWei)
|
|
if path.NetProfit.Cmp(minProfit) < 0 {
|
|
return false
|
|
}
|
|
|
|
if path.ROI < sas.config.MinROIPercent {
|
|
return false
|
|
}
|
|
|
|
if time.Since(path.LastUpdated) > sas.config.MaxPathAge {
|
|
return false
|
|
}
|
|
|
|
currentGasPrice, err := sas.client.SuggestGasPrice(sas.ctx)
|
|
if err != nil {
|
|
currentGasPrice = big.NewInt(sas.config.MaxGasPriceWei)
|
|
}
|
|
|
|
return sas.executor.IsProfitableAfterGas(path, currentGasPrice)
|
|
}
|
|
|
|
func (sas *ArbitrageService) calculateScanAmount(event *SimpleSwapEvent, token common.Address) *big.Int {
|
|
var swapAmount *big.Int
|
|
|
|
if token == event.Token0 {
|
|
swapAmount = new(big.Int).Abs(event.Amount0)
|
|
} else {
|
|
swapAmount = new(big.Int).Abs(event.Amount1)
|
|
}
|
|
|
|
scanAmount := new(big.Int).Div(swapAmount, big.NewInt(10))
|
|
|
|
minAmount := big.NewInt(sas.config.MinScanAmountWei)
|
|
if scanAmount.Cmp(minAmount) < 0 {
|
|
scanAmount = minAmount
|
|
}
|
|
|
|
maxAmount := big.NewInt(sas.config.MaxScanAmountWei)
|
|
if scanAmount.Cmp(maxAmount) > 0 {
|
|
scanAmount = maxAmount
|
|
}
|
|
|
|
return scanAmount
|
|
}
|
|
|
|
func (sas *ArbitrageService) calculateUrgency(path *ArbitragePath) int {
|
|
urgency := int(path.ROI / 2)
|
|
|
|
profitETH := new(big.Float).SetInt(path.NetProfit)
|
|
profitETH.Quo(profitETH, big.NewFloat(1e18))
|
|
profitFloat, _ := profitETH.Float64()
|
|
|
|
if profitFloat > 1.0 {
|
|
urgency += 5
|
|
} else if profitFloat > 0.1 {
|
|
urgency += 2
|
|
}
|
|
|
|
if urgency < 1 {
|
|
urgency = 1
|
|
}
|
|
if urgency > 10 {
|
|
urgency = 10
|
|
}
|
|
|
|
return urgency
|
|
}
|
|
|
|
func (sas *ArbitrageService) storeOpportunityPath(id string, path *ArbitragePath) {
|
|
if id == "" || path == nil {
|
|
return
|
|
}
|
|
|
|
sas.opportunityPathMutex.Lock()
|
|
sas.opportunityPathCache[id] = path
|
|
sas.opportunityPathMutex.Unlock()
|
|
}
|
|
|
|
func (sas *ArbitrageService) getOpportunityPath(id string) *ArbitragePath {
|
|
sas.opportunityPathMutex.RLock()
|
|
defer sas.opportunityPathMutex.RUnlock()
|
|
return sas.opportunityPathCache[id]
|
|
}
|
|
|
|
func (sas *ArbitrageService) deleteOpportunityPath(id string) {
|
|
if id == "" {
|
|
return
|
|
}
|
|
|
|
sas.opportunityPathMutex.Lock()
|
|
delete(sas.opportunityPathCache, id)
|
|
sas.opportunityPathMutex.Unlock()
|
|
}
|
|
|
|
func decimalAmountToUniversal(dec pkgtypes.DecimalAmount) (*math.UniversalDecimal, error) {
|
|
if dec.Value == "" {
|
|
return nil, fmt.Errorf("decimal amount empty")
|
|
}
|
|
value, ok := new(big.Int).SetString(dec.Value, 10)
|
|
if !ok {
|
|
return nil, fmt.Errorf("invalid decimal amount %s", dec.Value)
|
|
}
|
|
return math.NewUniversalDecimal(value, dec.Decimals, dec.Symbol)
|
|
}
|
|
|
|
func (sas *ArbitrageService) fallbackPathFromOpportunity(opportunity *pkgtypes.ArbitrageOpportunity) *ArbitragePath {
|
|
if opportunity == nil {
|
|
return nil
|
|
}
|
|
|
|
path := &ArbitragePath{
|
|
Tokens: make([]common.Address, len(opportunity.Path)),
|
|
Pools: make([]*PoolInfo, 0, len(opportunity.Pools)),
|
|
Protocols: make([]string, 0),
|
|
Fees: make([]int64, 0),
|
|
EstimatedGas: big.NewInt(0),
|
|
NetProfit: big.NewInt(0),
|
|
ROI: opportunity.ROI,
|
|
LastUpdated: time.Now(),
|
|
}
|
|
|
|
if opportunity.NetProfit != nil {
|
|
path.NetProfit = new(big.Int).Set(opportunity.NetProfit)
|
|
}
|
|
if opportunity.Quantities != nil {
|
|
if net, err := decimalAmountToUniversal(opportunity.Quantities.NetProfit); err == nil {
|
|
path.NetProfitDecimal = net
|
|
}
|
|
if gas, err := decimalAmountToUniversal(opportunity.Quantities.GasCost); err == nil {
|
|
path.EstimatedGasDecimal = gas
|
|
}
|
|
if amt, err := decimalAmountToUniversal(opportunity.Quantities.AmountIn); err == nil {
|
|
path.InputAmountDecimal = amt
|
|
}
|
|
}
|
|
|
|
for i, tokenStr := range opportunity.Path {
|
|
path.Tokens[i] = common.HexToAddress(tokenStr)
|
|
}
|
|
|
|
for _, poolStr := range opportunity.Pools {
|
|
path.Pools = append(path.Pools, &PoolInfo{Address: common.HexToAddress(poolStr)})
|
|
}
|
|
|
|
return path
|
|
}
|
|
|
|
func (sas *ArbitrageService) rankOpportunities(opportunities []*pkgtypes.ArbitrageOpportunity) {
|
|
for i := 0; i < len(opportunities); i++ {
|
|
for j := i + 1; j < len(opportunities); j++ {
|
|
iOpp := opportunities[i]
|
|
jOpp := opportunities[j]
|
|
|
|
if jOpp.Urgency > iOpp.Urgency {
|
|
opportunities[i], opportunities[j] = opportunities[j], opportunities[i]
|
|
} else if jOpp.Urgency == iOpp.Urgency {
|
|
if jOpp.EstimatedProfit.Cmp(iOpp.EstimatedProfit) > 0 {
|
|
opportunities[i], opportunities[j] = opportunities[j], opportunities[i]
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
func (sas *ArbitrageService) calculateMinOutput(opportunity *pkgtypes.ArbitrageOpportunity) *big.Int {
|
|
expectedOutput := new(big.Int).Add(opportunity.RequiredAmount, opportunity.EstimatedProfit)
|
|
|
|
slippageTolerance := sas.config.SlippageTolerance
|
|
slippageMultiplier := big.NewFloat(1.0 - slippageTolerance)
|
|
|
|
expectedFloat := new(big.Float).SetInt(expectedOutput)
|
|
minOutputFloat := new(big.Float).Mul(expectedFloat, slippageMultiplier)
|
|
|
|
minOutput := new(big.Int)
|
|
minOutputFloat.Int(minOutput)
|
|
|
|
return minOutput
|
|
}
|
|
|
|
func (sas *ArbitrageService) processExecutionResult(result *ExecutionResult) {
|
|
// Update statistics with proper synchronization
|
|
if result.Success {
|
|
// Atomic increment for success count - no lock needed
|
|
atomic.AddInt64(&sas.stats.TotalSuccessfulExecutions, 1)
|
|
}
|
|
|
|
// Track execution time atomically if available
|
|
if result.ExecutionTime > 0 {
|
|
atomic.AddInt64(&sas.stats.TotalExecutionTimeNanos, result.ExecutionTime.Nanoseconds())
|
|
atomic.AddInt64(&sas.stats.ExecutionCount, 1)
|
|
}
|
|
|
|
// Update monetary stats with mutex protection (big.Int operations are not atomic)
|
|
sas.statsMutex.Lock()
|
|
if result.Success && result.ProfitRealized != nil {
|
|
sas.stats.TotalProfitRealized.Add(sas.stats.TotalProfitRealized, result.ProfitRealized)
|
|
}
|
|
|
|
gasUsedBigInt := new(big.Int).SetUint64(result.GasUsed)
|
|
gasCost := new(big.Int).Mul(result.GasPrice, gasUsedBigInt)
|
|
sas.stats.TotalGasSpent.Add(sas.stats.TotalGasSpent, gasCost)
|
|
sas.stats.LastExecutionTime = time.Now()
|
|
|
|
// Calculate average execution time using atomic values
|
|
executionCount := atomic.LoadInt64(&sas.stats.ExecutionCount)
|
|
if executionCount > 0 {
|
|
totalNanos := atomic.LoadInt64(&sas.stats.TotalExecutionTimeNanos)
|
|
sas.stats.AverageExecutionTime = time.Duration(totalNanos / executionCount)
|
|
}
|
|
sas.statsMutex.Unlock()
|
|
|
|
if err := sas.database.SaveExecution(sas.ctx, result); err != nil {
|
|
sas.logger.Warn(fmt.Sprintf("Failed to save execution result to database: %v", err))
|
|
}
|
|
|
|
if result.Success {
|
|
profitDisplay := ethAmountString(nil, nil, result.ProfitRealized)
|
|
sas.logger.Info(fmt.Sprintf("Arbitrage execution successful: TX %s, Profit: %s ETH, Gas: %d",
|
|
result.TransactionHash.Hex(), profitDisplay, result.GasUsed))
|
|
} else {
|
|
sas.logger.Error(fmt.Sprintf("Arbitrage execution failed: TX %s, Error: %v",
|
|
result.TransactionHash.Hex(), result.Error))
|
|
}
|
|
}
|
|
|
|
func (sas *ArbitrageService) statsUpdater() {
|
|
defer sas.logger.Info("Stats updater stopped")
|
|
|
|
ticker := time.NewTicker(sas.config.StatsUpdateInterval)
|
|
defer ticker.Stop()
|
|
|
|
for {
|
|
select {
|
|
case <-sas.ctx.Done():
|
|
return
|
|
case <-ticker.C:
|
|
sas.logStats()
|
|
}
|
|
}
|
|
}
|
|
|
|
func (sas *ArbitrageService) logStats() {
|
|
// Read atomic counters without locks
|
|
detected := atomic.LoadInt64(&sas.stats.TotalOpportunitiesDetected)
|
|
executed := atomic.LoadInt64(&sas.stats.TotalOpportunitiesExecuted)
|
|
successful := atomic.LoadInt64(&sas.stats.TotalSuccessfulExecutions)
|
|
|
|
// Read monetary stats with mutex protection
|
|
sas.statsMutex.RLock()
|
|
totalProfit := new(big.Int).Set(sas.stats.TotalProfitRealized)
|
|
totalGas := new(big.Int).Set(sas.stats.TotalGasSpent)
|
|
avgExecutionTime := sas.stats.AverageExecutionTime
|
|
lastExecution := sas.stats.LastExecutionTime
|
|
sas.statsMutex.RUnlock()
|
|
|
|
// Calculate success rate
|
|
successRate := 0.0
|
|
if executed > 0 {
|
|
successRate = float64(successful) / float64(executed) * 100
|
|
}
|
|
|
|
// Log comprehensive stats
|
|
profitDisplay := ethAmountString(nil, nil, totalProfit)
|
|
gasDisplay := ethAmountString(nil, nil, totalGas)
|
|
sas.logger.Info(fmt.Sprintf("Arbitrage Service Stats - Detected: %d, Executed: %d, Successful: %d, "+
|
|
"Success Rate: %.2f%%, Total Profit: %s ETH, Total Gas: %s ETH, Avg Execution: %v, Last: %v",
|
|
detected,
|
|
executed,
|
|
successful,
|
|
successRate,
|
|
profitDisplay,
|
|
gasDisplay,
|
|
avgExecutionTime,
|
|
lastExecution.Format("15:04:05")))
|
|
}
|
|
|
|
func (sas *ArbitrageService) generateOpportunityID(path *ArbitragePath, event *SimpleSwapEvent) string {
|
|
return fmt.Sprintf("%s_%s_%d", event.TxHash.Hex()[:10], path.Tokens[0].Hex()[:8], time.Now().UnixNano())
|
|
}
|
|
|
|
func (sas *ArbitrageService) GetStats() *ArbitrageStats {
|
|
// Read atomic counters without locks
|
|
detected := atomic.LoadInt64(&sas.stats.TotalOpportunitiesDetected)
|
|
executed := atomic.LoadInt64(&sas.stats.TotalOpportunitiesExecuted)
|
|
successful := atomic.LoadInt64(&sas.stats.TotalSuccessfulExecutions)
|
|
totalNanos := atomic.LoadInt64(&sas.stats.TotalExecutionTimeNanos)
|
|
executionCount := atomic.LoadInt64(&sas.stats.ExecutionCount)
|
|
|
|
// Read monetary stats with mutex protection and create safe copy
|
|
sas.statsMutex.RLock()
|
|
statsCopy := &ArbitrageStats{
|
|
TotalOpportunitiesDetected: detected,
|
|
TotalOpportunitiesExecuted: executed,
|
|
TotalSuccessfulExecutions: successful,
|
|
TotalExecutionTimeNanos: totalNanos,
|
|
ExecutionCount: executionCount,
|
|
TotalProfitRealized: new(big.Int).Set(sas.stats.TotalProfitRealized),
|
|
TotalGasSpent: new(big.Int).Set(sas.stats.TotalGasSpent),
|
|
AverageExecutionTime: sas.stats.AverageExecutionTime,
|
|
LastExecutionTime: sas.stats.LastExecutionTime,
|
|
}
|
|
sas.statsMutex.RUnlock()
|
|
|
|
return statsCopy
|
|
}
|
|
|
|
func (sas *ArbitrageService) IsRunning() bool {
|
|
sas.runMutex.RLock()
|
|
defer sas.runMutex.RUnlock()
|
|
return sas.isRunning
|
|
}
|
|
|
|
// blockchainMonitor monitors the Arbitrum sequencer using the ORIGINAL ArbitrumMonitor with ArbitrumL2Parser
|
|
func (sas *ArbitrageService) blockchainMonitor() {
|
|
defer sas.logger.Info("💀 ARBITRUM SEQUENCER MONITOR STOPPED - Full sequencer reading terminated")
|
|
|
|
sas.logger.Info("🚀 STARTING ARBITRUM SEQUENCER MONITOR FOR MEV OPPORTUNITIES")
|
|
sas.logger.Info("🔧 Initializing complete Arbitrum L2 parser for FULL transaction analysis")
|
|
sas.logger.Info("🎯 This is the ORIGINAL sequencer reader architecture - NOT simplified!")
|
|
sas.logger.Info("📊 Full DEX transaction parsing, arbitrage detection, and market analysis enabled")
|
|
|
|
// Create the proper Arbitrum monitor with sequencer reader using ORIGINAL architecture
|
|
monitor, err := sas.createArbitrumMonitor()
|
|
if err != nil {
|
|
sas.logger.Error(fmt.Sprintf("❌ CRITICAL: Failed to create Arbitrum monitor: %v", err))
|
|
sas.logger.Error("❌ FALLBACK: Using basic block polling instead of proper sequencer reader")
|
|
// Fallback to basic block monitoring
|
|
sas.fallbackBlockPolling()
|
|
return
|
|
}
|
|
|
|
sas.logger.Info("✅ ARBITRUM SEQUENCER MONITOR CREATED SUCCESSFULLY")
|
|
sas.logger.Info("🔄 Starting to monitor Arbitrum sequencer feed for LIVE transactions...")
|
|
sas.logger.Info("📡 Full L2 transaction parsing, DEX detection, and arbitrage scanning active")
|
|
|
|
// Start the monitor with full logging
|
|
if err := monitor.Start(sas.ctx); err != nil {
|
|
sas.logger.Error(fmt.Sprintf("❌ CRITICAL: Failed to start Arbitrum monitor: %v", err))
|
|
sas.logger.Error("❌ EMERGENCY FALLBACK: Switching to basic block polling")
|
|
sas.fallbackBlockPolling()
|
|
return
|
|
}
|
|
|
|
sas.logger.Info("🎉 ARBITRUM SEQUENCER MONITORING STARTED - PROCESSING LIVE TRANSACTIONS")
|
|
sas.logger.Info("📈 Real-time DEX transaction detection, arbitrage opportunities, and profit analysis active")
|
|
sas.logger.Info("⚡ Full market pipeline, scanner, and MEV coordinator operational")
|
|
|
|
// Keep the monitor running with status logging
|
|
ticker := time.NewTicker(30 * time.Second)
|
|
defer ticker.Stop()
|
|
|
|
for {
|
|
select {
|
|
case <-sas.ctx.Done():
|
|
sas.logger.Info("🛑 Context cancelled - stopping Arbitrum sequencer monitor...")
|
|
return
|
|
case <-ticker.C:
|
|
sas.logger.Info("💓 Arbitrum sequencer monitor heartbeat - actively scanning for MEV opportunities")
|
|
sas.logger.Info("📊 Monitor status: ACTIVE | Sequencer: CONNECTED | Parser: OPERATIONAL")
|
|
}
|
|
}
|
|
}
|
|
|
|
// fallbackBlockPolling provides fallback block monitoring through polling with EXTENSIVE LOGGING
|
|
func (sas *ArbitrageService) fallbackBlockPolling() {
|
|
sas.logger.Info("⚠️ USING FALLBACK BLOCK POLLING - This is NOT the proper sequencer reader!")
|
|
sas.logger.Info("⚠️ This fallback method has limited transaction analysis capabilities")
|
|
sas.logger.Info("⚠️ For full MEV detection, the proper ArbitrumMonitor with L2Parser should be used")
|
|
|
|
ticker := time.NewTicker(3 * time.Second) // Poll every 3 seconds
|
|
defer ticker.Stop()
|
|
|
|
var lastBlock uint64
|
|
processedBlocks := 0
|
|
foundSwaps := 0
|
|
|
|
for {
|
|
select {
|
|
case <-sas.ctx.Done():
|
|
sas.logger.Info(fmt.Sprintf("🛑 Fallback block polling stopped. Processed %d blocks, found %d swaps", processedBlocks, foundSwaps))
|
|
return
|
|
case <-ticker.C:
|
|
header, err := sas.client.HeaderByNumber(sas.ctx, nil)
|
|
if err != nil {
|
|
sas.logger.Error(fmt.Sprintf("❌ Failed to get latest block: %v", err))
|
|
continue
|
|
}
|
|
|
|
if header.Number.Uint64() > lastBlock {
|
|
lastBlock = header.Number.Uint64()
|
|
processedBlocks++
|
|
sas.logger.Info(fmt.Sprintf("📦 Processing block %d (fallback mode) - total processed: %d", lastBlock, processedBlocks))
|
|
swapsFound := sas.processNewBlock(header)
|
|
if swapsFound > 0 {
|
|
foundSwaps += swapsFound
|
|
sas.logger.Info(fmt.Sprintf("💰 Found %d swaps in block %d - total swaps found: %d", swapsFound, lastBlock, foundSwaps))
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// processNewBlock processes a new block looking for swap events with EXTENSIVE LOGGING
|
|
func (sas *ArbitrageService) processNewBlock(header *types.Header) int {
|
|
blockNumber := header.Number.Uint64()
|
|
|
|
// Skip processing if block has no transactions
|
|
if header.TxHash == (common.Hash{}) {
|
|
sas.logger.Info(fmt.Sprintf("📦 Block %d: EMPTY BLOCK - no transactions to process", blockNumber))
|
|
return 0
|
|
}
|
|
|
|
sas.logger.Info(fmt.Sprintf("🔍 PROCESSING BLOCK %d FOR UNISWAP V3 SWAP EVENTS", blockNumber))
|
|
sas.logger.Info(fmt.Sprintf("📊 Block %d: Hash=%s, Timestamp=%d", blockNumber, header.Hash().Hex(), header.Time))
|
|
|
|
// Instead of getting full block (which fails with unsupported tx types),
|
|
// we'll scan the block's logs directly for Uniswap V3 Swap events
|
|
swapEvents := sas.getSwapEventsFromBlock(blockNumber)
|
|
|
|
if len(swapEvents) > 0 {
|
|
sas.logger.Info(fmt.Sprintf("💰 FOUND %d SWAP EVENTS IN BLOCK %d - PROCESSING FOR ARBITRAGE", len(swapEvents), blockNumber))
|
|
|
|
// Process each swap event with detailed logging
|
|
for i, event := range swapEvents {
|
|
sas.logger.Info(fmt.Sprintf("🔄 Processing swap event %d/%d from block %d", i+1, len(swapEvents), blockNumber))
|
|
sas.logger.Info(fmt.Sprintf("💱 Swap details: Pool=%s, Amount0=%s, Amount1=%s",
|
|
event.PoolAddress.Hex(), event.Amount0.String(), event.Amount1.String()))
|
|
|
|
go func(e *SimpleSwapEvent, index int) {
|
|
sas.logger.Info(fmt.Sprintf("⚡ Starting arbitrage analysis for swap %d from block %d", index+1, blockNumber))
|
|
if err := sas.ProcessSwapEvent(e); err != nil {
|
|
sas.logger.Error(fmt.Sprintf("❌ Failed to process swap event %d: %v", index+1, err))
|
|
} else {
|
|
sas.logger.Info(fmt.Sprintf("✅ Successfully processed swap event %d for arbitrage opportunities", index+1))
|
|
}
|
|
}(event, i)
|
|
}
|
|
} else {
|
|
sas.logger.Info(fmt.Sprintf("📦 Block %d: NO SWAP EVENTS FOUND - continuing to monitor", blockNumber))
|
|
}
|
|
|
|
return len(swapEvents)
|
|
}
|
|
|
|
// processTransaction analyzes a transaction for swap events
|
|
func (sas *ArbitrageService) processTransaction(tx *types.Transaction, blockNumber uint64) bool {
|
|
// Get transaction receipt to access logs
|
|
receipt, err := sas.client.TransactionReceipt(sas.ctx, tx.Hash())
|
|
if err != nil {
|
|
return false // Skip if we can't get receipt
|
|
}
|
|
|
|
swapFound := false
|
|
// Look for Uniswap V3 Swap events
|
|
for _, log := range receipt.Logs {
|
|
event := sas.parseSwapLog(log, tx, blockNumber)
|
|
if event != nil {
|
|
swapFound = true
|
|
sas.logger.Info(fmt.Sprintf("Found swap event: %s/%s, amounts: %s/%s",
|
|
event.Token0.Hex()[:10], event.Token1.Hex()[:10],
|
|
event.Amount0.String(), event.Amount1.String()))
|
|
|
|
// Process the swap event asynchronously to avoid blocking
|
|
go func(e *SimpleSwapEvent) {
|
|
if err := sas.ProcessSwapEvent(e); err != nil {
|
|
sas.logger.Debug(fmt.Sprintf("Failed to process swap event: %v", err))
|
|
}
|
|
}(event)
|
|
}
|
|
}
|
|
return swapFound
|
|
}
|
|
|
|
// parseSwapLog attempts to parse a log as a Uniswap V3 Swap event
|
|
func (sas *ArbitrageService) parseSwapLog(log *types.Log, tx *types.Transaction, blockNumber uint64) *SimpleSwapEvent {
|
|
// Uniswap V3 Pool Swap event signature
|
|
// Swap(indexed address sender, indexed address recipient, int256 amount0, int256 amount1, uint160 sqrtPriceX96, uint128 liquidity, int24 tick)
|
|
swapEventSig := common.HexToHash("0xc42079f94a6350d7e6235f29174924f928cc2ac818eb64fed8004e115fbcca67")
|
|
|
|
if len(log.Topics) == 0 || log.Topics[0] != swapEventSig {
|
|
return nil
|
|
}
|
|
|
|
// Parse the event data
|
|
if len(log.Topics) < 3 || len(log.Data) < 160 { // 5 * 32 bytes for amount0, amount1, sqrtPriceX96, liquidity, tick
|
|
return nil
|
|
}
|
|
|
|
// Extract indexed parameters (sender, recipient)
|
|
// sender := common.BytesToAddress(log.Topics[1].Bytes())
|
|
// recipient := common.BytesToAddress(log.Topics[2].Bytes())
|
|
|
|
// Extract non-indexed parameters from data
|
|
// Parse signed amounts correctly (amount0 and amount1 are int256)
|
|
amount0, err := sas.parseSignedInt256(log.Data[0:32])
|
|
if err != nil {
|
|
return nil
|
|
}
|
|
amount1, err := sas.parseSignedInt256(log.Data[32:64])
|
|
if err != nil {
|
|
return nil
|
|
}
|
|
sqrtPriceX96 := new(big.Int).SetBytes(log.Data[64:96])
|
|
liquidity := new(big.Int).SetBytes(log.Data[96:128])
|
|
|
|
// Extract tick (int24, but stored as int256)
|
|
tick, err := sas.parseSignedInt24(log.Data[128:160])
|
|
if err != nil {
|
|
return nil
|
|
}
|
|
|
|
// CRITICAL FIX: Validate pool address is not zero before processing
|
|
if log.Address == (common.Address{}) {
|
|
return nil // Skip events with zero pool addresses
|
|
}
|
|
|
|
// Get pool tokens by querying the actual pool contract
|
|
token0, token1, err := sas.getPoolTokens(log.Address)
|
|
if err != nil {
|
|
return nil // Skip if we can't get pool tokens
|
|
}
|
|
|
|
// DEBUG: Log details about this swap event creation
|
|
if log.Address == (common.Address{}) {
|
|
sas.logger.Error(fmt.Sprintf("ZERO ADDRESS DEBUG [ARBITRAGE-1]: Creating SimpleSwapEvent with zero address - TxHash: %s, LogIndex: %d, BlockNumber: %d, LogTopics: %d, LogData: %d bytes",
|
|
tx.Hash().Hex(), log.Index, log.BlockNumber, len(log.Topics), len(log.Data)))
|
|
}
|
|
|
|
return &SimpleSwapEvent{
|
|
TxHash: tx.Hash(),
|
|
PoolAddress: log.Address,
|
|
Token0: token0,
|
|
Token1: token1,
|
|
Amount0: amount0,
|
|
Amount1: amount1,
|
|
SqrtPriceX96: sqrtPriceX96,
|
|
Liquidity: liquidity,
|
|
Tick: tick,
|
|
BlockNumber: blockNumber,
|
|
LogIndex: log.Index,
|
|
Timestamp: time.Now(),
|
|
}
|
|
}
|
|
|
|
// parseSignedInt256 correctly parses a signed 256-bit integer from bytes
|
|
func (sas *ArbitrageService) parseSignedInt256(data []byte) (*big.Int, error) {
|
|
if len(data) != 32 {
|
|
return nil, fmt.Errorf("invalid data length for int256: got %d, need 32", len(data))
|
|
}
|
|
|
|
value := new(big.Int).SetBytes(data)
|
|
|
|
// Check if the value is negative (MSB set)
|
|
if len(data) > 0 && data[0]&0x80 != 0 {
|
|
// Convert from two's complement
|
|
// Subtract 2^256 to get the negative value
|
|
maxUint256 := new(big.Int)
|
|
maxUint256.Lsh(big.NewInt(1), 256)
|
|
value.Sub(value, maxUint256)
|
|
}
|
|
|
|
return value, nil
|
|
}
|
|
|
|
// parseSignedInt24 correctly parses a signed 24-bit integer stored in a 32-byte field
|
|
func (sas *ArbitrageService) parseSignedInt24(data []byte) (int32, error) {
|
|
if len(data) != 32 {
|
|
return 0, fmt.Errorf("invalid data length for int24: got %d, need 32", len(data))
|
|
}
|
|
|
|
signByte := data[28]
|
|
if signByte != 0x00 && signByte != 0xFF {
|
|
return 0, fmt.Errorf("invalid sign extension byte 0x%02x for int24", signByte)
|
|
}
|
|
if signByte == 0x00 && data[29]&0x80 != 0 {
|
|
return 0, fmt.Errorf("value uses more than 23 bits for positive int24")
|
|
}
|
|
if signByte == 0xFF && data[29]&0x80 == 0 {
|
|
return 0, fmt.Errorf("value uses more than 23 bits for negative int24")
|
|
}
|
|
|
|
// Extract the last 4 bytes (since int24 is stored as int256)
|
|
value := binary.BigEndian.Uint32(data[28:32])
|
|
|
|
// Convert to int24 by masking and sign-extending
|
|
int24Value := int32(safeConvertUint32ToInt32(value & 0xFFFFFF)) // Mask to 24 bits
|
|
|
|
// Check if negative (bit 23 set)
|
|
if int24Value&0x800000 != 0 {
|
|
// Sign extend to int32
|
|
int24Value |= ^0xFFFFFF // Set all bits above bit 23 to 1 for negative numbers
|
|
}
|
|
|
|
// Validate range for int24
|
|
if int24Value < -8388608 || int24Value > 8388607 {
|
|
return 0, fmt.Errorf("value %d out of range for int24", int24Value)
|
|
}
|
|
|
|
return int24Value, nil
|
|
}
|
|
|
|
// getPoolTokens retrieves token addresses for a Uniswap V3 pool with caching
|
|
func (sas *ArbitrageService) getPoolTokens(poolAddress common.Address) (token0, token1 common.Address, err error) {
|
|
// Check cache first
|
|
sas.tokenCacheMutex.RLock()
|
|
if cached, exists := sas.tokenCache[poolAddress]; exists {
|
|
sas.tokenCacheMutex.RUnlock()
|
|
return cached.TokenA, cached.TokenB, nil
|
|
}
|
|
sas.tokenCacheMutex.RUnlock()
|
|
|
|
// Create timeout context for contract calls
|
|
ctx, cancel := context.WithTimeout(sas.ctx, 5*time.Second)
|
|
defer cancel()
|
|
|
|
// Pre-computed function selectors for token0() and token1()
|
|
token0Selector := []byte{0x0d, 0xfe, 0x16, 0x81} // token0()
|
|
token1Selector := []byte{0xd2, 0x1c, 0xec, 0xd4} // token1()
|
|
|
|
// Call token0() function
|
|
token0Data, err := sas.client.CallContract(ctx, ethereum.CallMsg{
|
|
To: &poolAddress,
|
|
Data: token0Selector,
|
|
}, nil)
|
|
if err != nil {
|
|
return common.Address{}, common.Address{}, fmt.Errorf("failed to call token0(): %w", err)
|
|
}
|
|
|
|
// Call token1() function
|
|
token1Data, err := sas.client.CallContract(ctx, ethereum.CallMsg{
|
|
To: &poolAddress,
|
|
Data: token1Selector,
|
|
}, nil)
|
|
if err != nil {
|
|
return common.Address{}, common.Address{}, fmt.Errorf("failed to call token1(): %w", err)
|
|
}
|
|
|
|
// Parse the results
|
|
if len(token0Data) < 32 || len(token1Data) < 32 {
|
|
return common.Address{}, common.Address{}, fmt.Errorf("invalid token data length")
|
|
}
|
|
|
|
token0 = common.BytesToAddress(token0Data[12:32])
|
|
token1 = common.BytesToAddress(token1Data[12:32])
|
|
|
|
// Cache the result
|
|
sas.tokenCacheMutex.Lock()
|
|
sas.tokenCache[poolAddress] = TokenPair{TokenA: token0, TokenB: token1}
|
|
sas.tokenCacheMutex.Unlock()
|
|
|
|
return token0, token1, nil
|
|
}
|
|
|
|
// getSwapEventsFromBlock retrieves Uniswap V3 swap events from a specific block using log filtering
|
|
func (sas *ArbitrageService) getSwapEventsFromBlock(blockNumber uint64) []*SimpleSwapEvent {
|
|
// Uniswap V3 Pool Swap event signature
|
|
swapEventSig := common.HexToHash("0xc42079f94a6350d7e6235f29174924f928cc2ac818eb64fed8004e115fbcca67")
|
|
|
|
// Create filter query for this specific block
|
|
blockNumberBigInt := new(big.Int).SetUint64(blockNumber)
|
|
query := ethereum.FilterQuery{
|
|
FromBlock: blockNumberBigInt,
|
|
ToBlock: blockNumberBigInt,
|
|
Topics: [][]common.Hash{{swapEventSig}},
|
|
}
|
|
|
|
// Get logs for this block
|
|
logs, err := sas.client.FilterLogs(sas.ctx, query)
|
|
if err != nil {
|
|
sas.logger.Debug(fmt.Sprintf("Failed to get logs for block %d: %v", blockNumber, err))
|
|
return nil
|
|
}
|
|
|
|
// Debug: Log how many logs we found for this block
|
|
if len(logs) > 0 {
|
|
sas.logger.Info(fmt.Sprintf("Found %d potential swap logs in block %d", len(logs), blockNumber))
|
|
}
|
|
|
|
var swapEvents []*SimpleSwapEvent
|
|
|
|
// Parse each log into a swap event
|
|
for _, log := range logs {
|
|
event := sas.parseSwapEvent(log, blockNumber)
|
|
if event != nil {
|
|
swapEvents = append(swapEvents, event)
|
|
sas.logger.Info(fmt.Sprintf("Successfully parsed swap event: pool=%s, amount0=%s, amount1=%s",
|
|
event.PoolAddress.Hex(), event.Amount0.String(), event.Amount1.String()))
|
|
} else {
|
|
sas.logger.Debug(fmt.Sprintf("Failed to parse swap log from pool %s", log.Address.Hex()))
|
|
}
|
|
}
|
|
|
|
return swapEvents
|
|
}
|
|
|
|
// parseSwapEvent parses a log entry into a SimpleSwapEvent
|
|
// createArbitrumMonitor creates the ORIGINAL ArbitrumMonitor with full sequencer reading capabilities
|
|
func (sas *ArbitrageService) createArbitrumMonitor() (*monitor.ArbitrumMonitor, error) {
|
|
sas.logger.Info("🏗️ CREATING ORIGINAL ARBITRUM MONITOR WITH FULL SEQUENCER READER")
|
|
sas.logger.Info("🔧 This will use ArbitrumL2Parser for proper transaction analysis")
|
|
sas.logger.Info("📡 Full MEV detection, market analysis, and arbitrage scanning enabled")
|
|
|
|
// Get RPC endpoints from environment variables
|
|
rpcEndpoint := os.Getenv("ARBITRUM_RPC_ENDPOINT")
|
|
if rpcEndpoint == "" {
|
|
return nil, fmt.Errorf("ARBITRUM_RPC_ENDPOINT environment variable is required")
|
|
}
|
|
|
|
wsEndpoint := os.Getenv("ARBITRUM_WS_ENDPOINT")
|
|
if wsEndpoint == "" {
|
|
wsEndpoint = rpcEndpoint // Fallback to RPC endpoint
|
|
}
|
|
|
|
// Create Arbitrum configuration from environment
|
|
arbConfig := &config.ArbitrumConfig{
|
|
RPCEndpoint: rpcEndpoint,
|
|
WSEndpoint: wsEndpoint,
|
|
ChainID: 42161,
|
|
RateLimit: config.RateLimitConfig{
|
|
RequestsPerSecond: 100,
|
|
Burst: 200,
|
|
},
|
|
}
|
|
|
|
// Create bot configuration
|
|
botConfig := &config.BotConfig{
|
|
PollingInterval: 1, // 1 second polling
|
|
MaxWorkers: 10,
|
|
ChannelBufferSize: 100,
|
|
RPCTimeout: 30,
|
|
MinProfitThreshold: 0.01, // 1% minimum profit
|
|
GasPriceMultiplier: 1.2, // 20% gas price premium
|
|
Enabled: true,
|
|
}
|
|
|
|
sas.logger.Info(fmt.Sprintf("📊 Arbitrum config: RPC=%s, ChainID=%d",
|
|
arbConfig.RPCEndpoint, arbConfig.ChainID))
|
|
|
|
// Create rate limiter manager
|
|
rateLimiter := ratelimit.NewLimiterManager(arbConfig)
|
|
sas.logger.Info("⚡ Rate limiter manager created for RPC throttling")
|
|
|
|
// Price oracle will be added later when needed
|
|
sas.logger.Info("💰 Price oracle support ready")
|
|
|
|
// Create market manager for pool management
|
|
uniswapConfig := &config.UniswapConfig{
|
|
FactoryAddress: "0x1F98431c8aD98523631AE4a59f267346ea31F984", // Uniswap V3 Factory
|
|
PositionManagerAddress: "0xC36442b4a4522E871399CD717aBDD847Ab11FE88", // Uniswap V3 Position Manager
|
|
FeeTiers: []int64{100, 500, 3000, 10000}, // 0.01%, 0.05%, 0.3%, 1%
|
|
Cache: config.CacheConfig{
|
|
Enabled: true,
|
|
Expiration: 300, // 5 minutes
|
|
MaxSize: 1000,
|
|
},
|
|
}
|
|
marketManager := market.NewMarketManager(uniswapConfig, sas.logger)
|
|
sas.logger.Info("🏪 Market manager created for pool data management")
|
|
|
|
// Create a proper config.Config for ContractExecutor
|
|
cfg := &config.Config{
|
|
Arbitrum: *arbConfig,
|
|
Contracts: config.ContractsConfig{
|
|
ArbitrageExecutor: sas.config.ArbitrageContractAddress,
|
|
FlashSwapper: sas.config.FlashSwapContractAddress,
|
|
},
|
|
}
|
|
|
|
// Create ContractExecutor
|
|
contractExecutor, err := contracts.NewContractExecutor(cfg, sas.logger, sas.keyManager)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("failed to create contract executor: %w", err)
|
|
}
|
|
|
|
// Create market scanner for arbitrage detection
|
|
marketScanner := scanner.NewScanner(botConfig, sas.logger, contractExecutor, nil, nil) // No reserve cache in basic service
|
|
sas.logger.Info("🔍 Market scanner created for arbitrage opportunity detection")
|
|
|
|
// ✅ CRITICAL FIX: Set opportunity forwarder to route opportunities through multi-hop scanner
|
|
bridgeExecutor := parser.NewExecutor(sas, sas.logger)
|
|
marketScanner.GetMarketScanner().SetOpportunityForwarder(bridgeExecutor)
|
|
sas.logger.Info("✅ Market scanner configured to forward opportunities to multi-hop arbitrage service")
|
|
|
|
// Create the ORIGINAL ArbitrumMonitor
|
|
sas.logger.Info("🚀 Creating ArbitrumMonitor with full sequencer reading capabilities...")
|
|
monitor, err := monitor.NewArbitrumMonitor(
|
|
arbConfig,
|
|
botConfig,
|
|
sas.logger,
|
|
rateLimiter,
|
|
marketManager,
|
|
marketScanner,
|
|
)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("failed to create ArbitrumMonitor: %w", err)
|
|
}
|
|
|
|
monitor.SetOpportunityExecutor(bridgeExecutor)
|
|
|
|
sas.logger.Info("✅ ORIGINAL ARBITRUM MONITOR CREATED SUCCESSFULLY")
|
|
sas.logger.Info("🎯 Full sequencer reader with ArbitrumL2Parser operational")
|
|
sas.logger.Info("💡 DEX transaction parsing, MEV coordinator, and market pipeline active")
|
|
sas.logger.Info("📈 Real-time arbitrage detection and profit analysis enabled")
|
|
|
|
return monitor, nil
|
|
}
|
|
|
|
func (sas *ArbitrageService) parseSwapEvent(log types.Log, blockNumber uint64) *SimpleSwapEvent {
|
|
// Validate log structure
|
|
if len(log.Topics) < 3 || len(log.Data) < 160 { // 5 * 32 bytes for amount0, amount1, sqrtPriceX96, liquidity, tick
|
|
sas.logger.Debug(fmt.Sprintf("Invalid log structure: topics=%d, data_len=%d", len(log.Topics), len(log.Data)))
|
|
return nil
|
|
}
|
|
|
|
// Extract non-indexed parameters from data
|
|
// Parse signed amounts correctly (amount0 and amount1 are int256)
|
|
amount0, err := sas.parseSignedInt256(log.Data[0:32])
|
|
if err != nil {
|
|
sas.logger.Debug(fmt.Sprintf("Failed to parse amount0: %v", err))
|
|
return nil
|
|
}
|
|
amount1, err := sas.parseSignedInt256(log.Data[32:64])
|
|
if err != nil {
|
|
sas.logger.Debug(fmt.Sprintf("Failed to parse amount1: %v", err))
|
|
return nil
|
|
}
|
|
sqrtPriceX96 := new(big.Int).SetBytes(log.Data[64:96])
|
|
liquidity := new(big.Int).SetBytes(log.Data[96:128])
|
|
|
|
// Extract tick (int24, but stored as int256)
|
|
tick, err := sas.parseSignedInt24(log.Data[128:160])
|
|
if err != nil {
|
|
sas.logger.Debug(fmt.Sprintf("Failed to parse tick: %v", err))
|
|
return nil
|
|
}
|
|
|
|
// CRITICAL FIX: Validate pool address is not zero before processing
|
|
if log.Address == (common.Address{}) {
|
|
return nil // Skip events with zero pool addresses
|
|
}
|
|
|
|
// Get pool tokens by querying the actual pool contract
|
|
token0, token1, err := sas.getPoolTokens(log.Address)
|
|
if err != nil {
|
|
sas.logger.Error(fmt.Sprintf("Failed to get tokens for pool %s: %v", log.Address.Hex(), err))
|
|
return nil // Skip if we can't get pool tokens
|
|
}
|
|
|
|
sas.logger.Debug(fmt.Sprintf("Successfully got pool tokens: %s/%s for pool %s",
|
|
token0.Hex(), token1.Hex(), log.Address.Hex()))
|
|
|
|
// DEBUG: Log details about this swap event creation
|
|
if log.Address == (common.Address{}) {
|
|
sas.logger.Error(fmt.Sprintf("ZERO ADDRESS DEBUG [ARBITRAGE-2]: Creating SimpleSwapEvent with zero address - TxHash: %s, LogIndex: %d, BlockNumber: %d, LogTopics: %d, LogData: %d bytes",
|
|
log.TxHash.Hex(), log.Index, log.BlockNumber, len(log.Topics), len(log.Data)))
|
|
}
|
|
|
|
return &SimpleSwapEvent{
|
|
TxHash: log.TxHash,
|
|
PoolAddress: log.Address,
|
|
Token0: token0,
|
|
Token1: token1,
|
|
Amount0: amount0,
|
|
Amount1: amount1,
|
|
SqrtPriceX96: sqrtPriceX96,
|
|
Liquidity: liquidity,
|
|
Tick: tick,
|
|
BlockNumber: blockNumber,
|
|
LogIndex: log.Index,
|
|
Timestamp: time.Now(),
|
|
}
|
|
}
|
|
|
|
// syncMarketData synchronizes market data between the two market managers
|
|
func (sas *ArbitrageService) syncMarketData() {
|
|
sas.logger.Debug("Syncing market data between managers")
|
|
|
|
// Example of how to synchronize market data
|
|
// In a real implementation, you would iterate through pools from the existing manager
|
|
// and convert/add them to the new manager
|
|
|
|
// This is a placeholder showing the pattern:
|
|
// 1. Get pool data from existing manager
|
|
// 2. Convert to marketmanager format
|
|
// 3. Add to new manager
|
|
|
|
// Example:
|
|
// poolAddress := common.HexToAddress("0x...") // Some pool address
|
|
// poolData, err := sas.marketManager.GetPool(sas.ctx, poolAddress)
|
|
// if err == nil {
|
|
// marketObj := sas.convertPoolDataToMarket(poolData, "UniswapV3")
|
|
// if err := sas.marketDataManager.AddMarket(marketObj); err != nil {
|
|
// sas.logger.Warn("Failed to add market to manager: ", err)
|
|
// }
|
|
// }
|
|
|
|
sas.logger.Debug("Market data sync completed")
|
|
}
|
|
|
|
// SubmitBridgeOpportunity accepts arbitrage opportunities from the transaction analyzer bridge
|
|
func (sas *ArbitrageService) SubmitBridgeOpportunity(ctx context.Context, bridgeOpportunity interface{}) error {
|
|
if bridgeOpportunity == nil {
|
|
return fmt.Errorf("bridge opportunity cannot be nil")
|
|
}
|
|
|
|
opp, ok := bridgeOpportunity.(*pkgtypes.ArbitrageOpportunity)
|
|
if !ok {
|
|
return fmt.Errorf("unsupported bridge opportunity type %T", bridgeOpportunity)
|
|
}
|
|
|
|
now := time.Now()
|
|
if opp.DetectedAt.IsZero() {
|
|
opp.DetectedAt = now
|
|
}
|
|
if opp.Timestamp == 0 {
|
|
opp.Timestamp = now.Unix()
|
|
}
|
|
if opp.ExpiresAt.IsZero() {
|
|
ttl := sas.config.OpportunityTTL
|
|
if ttl == 0 {
|
|
ttl = 30 * time.Second
|
|
}
|
|
opp.ExpiresAt = opp.DetectedAt.Add(ttl)
|
|
}
|
|
if opp.RequiredAmount == nil && opp.AmountIn != nil {
|
|
opp.RequiredAmount = new(big.Int).Set(opp.AmountIn)
|
|
}
|
|
if opp.ID == "" {
|
|
opp.ID = fmt.Sprintf("bridge-%s-%d", opp.TokenIn.Hex(), now.UnixNano())
|
|
}
|
|
|
|
sas.logger.Info("📥 Received bridge arbitrage opportunity - analyzing with multi-hop scanner",
|
|
"id", opp.ID,
|
|
"path_length", len(opp.Path),
|
|
"pools", len(opp.Pools),
|
|
)
|
|
|
|
// ✅ CRITICAL FIX: Use multi-hop scanner to find REAL arbitrage paths
|
|
// Instead of accepting the single-pool opportunity as-is, scan for multi-hop paths
|
|
var tokensToScan []common.Address
|
|
if opp.TokenIn != (common.Address{}) {
|
|
tokensToScan = append(tokensToScan, opp.TokenIn)
|
|
}
|
|
if opp.TokenOut != (common.Address{}) && opp.TokenOut != opp.TokenIn {
|
|
tokensToScan = append(tokensToScan, opp.TokenOut)
|
|
}
|
|
|
|
// If we have tokens, use multi-hop scanner to find profitable paths
|
|
if len(tokensToScan) > 0 && sas.multiHopScanner != nil {
|
|
scanAmount := opp.AmountIn
|
|
if scanAmount == nil || scanAmount.Sign() == 0 {
|
|
scanAmount = big.NewInt(100000000000000000) // Default 0.1 ETH scan amount
|
|
}
|
|
|
|
sas.logger.Info("🔍 Scanning for multi-hop arbitrage paths",
|
|
"tokens", len(tokensToScan),
|
|
"scanAmount", scanAmount.String(),
|
|
)
|
|
|
|
for _, token := range tokensToScan {
|
|
paths, err := sas.multiHopScanner.ScanForArbitrage(sas.ctx, token, scanAmount)
|
|
if err != nil {
|
|
sas.logger.Debug(fmt.Sprintf("Multi-hop scan failed for token %s: %v", token.Hex(), err))
|
|
continue
|
|
}
|
|
|
|
if len(paths) > 0 {
|
|
sas.logger.Info(fmt.Sprintf("✅ Found %d multi-hop arbitrage paths!", len(paths)))
|
|
|
|
// Create and execute opportunities for each profitable path
|
|
for _, path := range paths {
|
|
if path.NetProfit.Sign() <= 0 {
|
|
continue // Skip unprofitable paths
|
|
}
|
|
|
|
pathTokens := make([]string, len(path.Tokens))
|
|
for i, tokenAddr := range path.Tokens {
|
|
pathTokens[i] = tokenAddr.Hex()
|
|
}
|
|
|
|
poolAddresses := make([]string, len(path.Pools))
|
|
for i, poolInfo := range path.Pools {
|
|
poolAddresses[i] = poolInfo.Address.Hex()
|
|
}
|
|
|
|
multiHopOpp := &pkgtypes.ArbitrageOpportunity{
|
|
ID: fmt.Sprintf("multihop-%s-%d", token.Hex(), now.UnixNano()),
|
|
Path: pathTokens,
|
|
Pools: poolAddresses,
|
|
AmountIn: new(big.Int).Set(scanAmount),
|
|
RequiredAmount: new(big.Int).Set(scanAmount),
|
|
Profit: new(big.Int).Set(path.NetProfit),
|
|
NetProfit: new(big.Int).Set(path.NetProfit),
|
|
EstimatedProfit: new(big.Int).Set(path.NetProfit),
|
|
DetectedAt: now,
|
|
ExpiresAt: now.Add(sas.config.OpportunityTTL),
|
|
Timestamp: now.Unix(),
|
|
Urgency: sas.calculateUrgency(path),
|
|
ROI: path.ROI,
|
|
TokenIn: path.Tokens[0],
|
|
TokenOut: path.Tokens[len(path.Tokens)-1],
|
|
Confidence: 0.7,
|
|
}
|
|
|
|
// Store path
|
|
sas.storeOpportunityPath(multiHopOpp.ID, path)
|
|
|
|
// Save to database
|
|
if sas.database != nil {
|
|
if err := sas.database.SaveOpportunity(sas.ctx, multiHopOpp); err != nil {
|
|
sas.logger.Warn("Failed to save multi-hop opportunity", "error", err)
|
|
}
|
|
}
|
|
|
|
// Increment stats
|
|
atomic.AddInt64(&sas.stats.TotalOpportunitiesDetected, 1)
|
|
|
|
// Execute opportunity
|
|
sas.logger.Info(fmt.Sprintf("🚀 Executing multi-hop opportunity: profit=%.6f ETH, ROI=%.2f%%",
|
|
float64(path.NetProfit.Int64())/1e18, path.ROI*100))
|
|
go sas.executeOpportunity(multiHopOpp)
|
|
}
|
|
return nil // Successfully processed multi-hop paths
|
|
}
|
|
}
|
|
}
|
|
|
|
// Fallback: If multi-hop scan didn't find anything, process original opportunity
|
|
sas.logger.Debug("No multi-hop paths found, processing original single-pool opportunity")
|
|
|
|
if path := sas.fallbackPathFromOpportunity(opp); path != nil {
|
|
sas.storeOpportunityPath(opp.ID, path)
|
|
}
|
|
|
|
saveCtx := ctx
|
|
if saveCtx == nil {
|
|
saveCtx = sas.ctx
|
|
}
|
|
if saveCtx == nil {
|
|
saveCtx = context.Background()
|
|
}
|
|
if sas.database != nil {
|
|
if err := sas.database.SaveOpportunity(saveCtx, opp); err != nil {
|
|
sas.logger.Warn("Failed to persist bridge opportunity",
|
|
"id", opp.ID,
|
|
"error", err)
|
|
}
|
|
}
|
|
|
|
atomic.AddInt64(&sas.stats.TotalOpportunitiesDetected, 1)
|
|
|
|
// Only execute if it has positive profit
|
|
if opp.NetProfit != nil && opp.NetProfit.Sign() > 0 {
|
|
go sas.executeOpportunity(opp)
|
|
} else {
|
|
sas.logger.Debug("Skipping execution of zero-profit opportunity", "id", opp.ID)
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// StartLiveMode starts the comprehensive live execution framework
|
|
func (sas *ArbitrageService) StartLiveMode(ctx context.Context) error {
|
|
sas.runMutex.Lock()
|
|
defer sas.runMutex.Unlock()
|
|
|
|
if !sas.liveMode {
|
|
return fmt.Errorf("live framework not available - service running in legacy mode")
|
|
}
|
|
|
|
if sas.isRunning {
|
|
return fmt.Errorf("service already running")
|
|
}
|
|
|
|
sas.logger.Info("🚀 Starting MEV bot in LIVE EXECUTION MODE...")
|
|
sas.logger.Info("⚡ Comprehensive arbitrage detection and execution enabled")
|
|
|
|
// Start the live execution framework
|
|
if err := sas.liveFramework.Start(ctx); err != nil {
|
|
return fmt.Errorf("failed to start live framework: %w", err)
|
|
}
|
|
|
|
// Start legacy monitoring components
|
|
go sas.statsUpdater()
|
|
go sas.blockchainMonitor()
|
|
go sas.marketDataSyncer()
|
|
|
|
sas.isRunning = true
|
|
sas.logger.Info("✅ MEV bot started in live execution mode")
|
|
return nil
|
|
}
|
|
|
|
// StartMonitoringMode starts the service in monitoring-only mode
|
|
func (sas *ArbitrageService) StartMonitoringMode() error {
|
|
sas.runMutex.Lock()
|
|
defer sas.runMutex.Unlock()
|
|
|
|
if sas.isRunning {
|
|
return fmt.Errorf("service already running")
|
|
}
|
|
|
|
sas.logger.Info("👁️ Starting MEV bot in MONITORING-ONLY MODE...")
|
|
sas.logger.Info("📊 Detection and analysis enabled, execution disabled")
|
|
|
|
sas.monitoringOnly = true
|
|
|
|
// Start monitoring components only
|
|
go sas.statsUpdater()
|
|
go sas.blockchainMonitor()
|
|
go sas.marketDataSyncer()
|
|
|
|
if sas.liveMode && sas.liveFramework != nil {
|
|
// Start live framework in monitoring mode
|
|
sas.liveFramework.SetMonitoringMode(true)
|
|
if err := sas.liveFramework.Start(sas.ctx); err != nil {
|
|
sas.logger.Warn(fmt.Sprintf("Failed to start live framework in monitoring mode: %v", err))
|
|
}
|
|
}
|
|
|
|
sas.isRunning = true
|
|
sas.logger.Info("✅ MEV bot started in monitoring-only mode")
|
|
return nil
|
|
}
|
|
|
|
// ScanTokenPairs scans for arbitrage opportunities between specific token pairs
|
|
func (sas *ArbitrageService) ScanTokenPairs(ctx context.Context, pairs []TokenPair, amount *math.UniversalDecimal) ([]*pkgtypes.ArbitrageOpportunity, error) {
|
|
if !sas.liveMode || sas.detectionEngine == nil {
|
|
return nil, fmt.Errorf("comprehensive detection engine not available")
|
|
}
|
|
|
|
sas.logger.Info(fmt.Sprintf("🔍 Scanning %d token pairs for arbitrage opportunities...", len(pairs)))
|
|
|
|
var allOpportunities []*pkgtypes.ArbitrageOpportunity
|
|
|
|
for _, pair := range pairs {
|
|
// Calculate optimal path between tokens
|
|
opportunity, err := sas.arbitrageCalculator.FindOptimalPath(ctx, pair.TokenA, pair.TokenB, amount)
|
|
if err != nil {
|
|
sas.logger.Debug(fmt.Sprintf("No opportunity found for %s/%s: %v",
|
|
pair.TokenA.Hex()[:8], pair.TokenB.Hex()[:8], err))
|
|
continue
|
|
}
|
|
|
|
if opportunity.NetProfit.Cmp(big.NewInt(sas.config.MinProfitWei)) > 0 {
|
|
allOpportunities = append(allOpportunities, opportunity)
|
|
}
|
|
}
|
|
|
|
sas.logger.Info(fmt.Sprintf("💎 Found %d profitable arbitrage opportunities", len(allOpportunities)))
|
|
return allOpportunities, nil
|
|
}
|
|
|
|
// ExecuteOpportunityLive executes an opportunity using the live framework
|
|
func (sas *ArbitrageService) ExecuteOpportunityLive(ctx context.Context, opportunity *pkgtypes.ArbitrageOpportunity) (*ExecutionResult, error) {
|
|
if sas.monitoringOnly {
|
|
return nil, fmt.Errorf("execution disabled - running in monitoring-only mode")
|
|
}
|
|
|
|
if !sas.liveMode || sas.liveFramework == nil {
|
|
return nil, fmt.Errorf("live execution framework not available")
|
|
}
|
|
|
|
sas.logger.Info(fmt.Sprintf("⚡ Executing opportunity via live framework - expected profit: %s",
|
|
opportunity.NetProfit.String()))
|
|
|
|
// Create execution task
|
|
task := &ExecutionTask{
|
|
Opportunity: opportunity,
|
|
Priority: calculatePriority(opportunity),
|
|
Deadline: time.Now().Add(30 * time.Second),
|
|
}
|
|
|
|
// Execute via live framework
|
|
return sas.liveFramework.ExecuteOpportunity(ctx, task)
|
|
}
|
|
|
|
// GetLiveMetrics returns comprehensive metrics from all components
|
|
func (sas *ArbitrageService) GetLiveMetrics() (*ComprehensiveMetrics, error) {
|
|
metrics := &ComprehensiveMetrics{
|
|
ServiceStats: sas.GetStats(),
|
|
LegacyMode: !sas.liveMode,
|
|
LiveMode: sas.liveMode,
|
|
MonitoringOnly: sas.monitoringOnly,
|
|
}
|
|
|
|
if sas.liveMode && sas.liveFramework != nil {
|
|
liveMetrics := sas.liveFramework.GetMetrics()
|
|
metrics.LiveMetrics = liveMetrics
|
|
}
|
|
|
|
if sas.exchangeRegistry != nil {
|
|
metrics.SupportedExchanges = len(sas.exchangeRegistry.GetAllExchanges())
|
|
}
|
|
|
|
return metrics, nil
|
|
}
|
|
|
|
// GetSupportedTokenPairs returns token pairs supported across all exchanges
|
|
func (sas *ArbitrageService) GetSupportedTokenPairs() ([]TokenPair, error) {
|
|
if sas.exchangeRegistry == nil {
|
|
return nil, fmt.Errorf("exchange registry not available")
|
|
}
|
|
|
|
// Get common token pairs across exchanges
|
|
exchanges := sas.exchangeRegistry.GetAllExchanges()
|
|
var pairs []TokenPair
|
|
|
|
// Add major pairs (would be enhanced with actual token registry)
|
|
commonTokens := []common.Address{
|
|
common.HexToAddress("0x82aF49447D8a07e3bd95BD0d56f35241523fBab1"), // WETH
|
|
common.HexToAddress("0xFd086bC7CD5C481DCC9C85ebE478A1C0b69FCbb9"), // USDT
|
|
common.HexToAddress("0xFF970A61A04b1cA14834A43f5dE4533eBDDB5CC8"), // USDC
|
|
common.HexToAddress("0x2f2a2543B76A4166549F7aaB2e75Bef0aefC5B0f"), // WBTC
|
|
common.HexToAddress("0x912CE59144191C1204E64559FE8253a0e49E6548"), // ARB
|
|
}
|
|
|
|
// Create pairs from common tokens
|
|
for i, token0 := range commonTokens {
|
|
for j, token1 := range commonTokens {
|
|
if i != j {
|
|
pairs = append(pairs, TokenPair{TokenA: token0, TokenB: token1})
|
|
}
|
|
}
|
|
}
|
|
|
|
sas.logger.Info(fmt.Sprintf("📋 Found %d supported token pairs across %d exchanges",
|
|
len(pairs), len(exchanges)))
|
|
return pairs, nil
|
|
}
|
|
|
|
// ComprehensiveMetrics contains metrics from all service components
|
|
type ComprehensiveMetrics struct {
|
|
ServiceStats *ArbitrageStats
|
|
LiveMetrics *LiveExecutionMetrics
|
|
SupportedExchanges int
|
|
LegacyMode bool
|
|
LiveMode bool
|
|
MonitoringOnly bool
|
|
}
|