Add enhanced concurrency patterns, rate limiting, market management, and pipeline processing

cmd/mev-bot/main.go

@@ -3,16 +3,17 @@ package main
 import (
 	"context"
 	"fmt"
-	"log"
 	"os"
 	"os/signal"
 	"syscall"
-	"time"
 
 	"github.com/urfave/cli/v2"
 	"github.com/your-username/mev-beta/internal/config"
 	"github.com/your-username/mev-beta/internal/logger"
+	"github.com/your-username/mev-beta/internal/ratelimit"
+	"github.com/your-username/mev-beta/pkg/market"
 	"github.com/your-username/mev-beta/pkg/monitor"
+	"github.com/your-username/mev-beta/pkg/scanner"
 )
 
 func main() {
@@ -40,7 +41,8 @@ func main() {
 	}
 
 	if err := app.Run(os.Args); err != nil {
-		log.Fatal(err)
+		fmt.Fprintf(os.Stderr, "Error: %v\n", err)
+		os.Exit(1)
 	}
 }
 
@@ -56,8 +58,24 @@ func startBot() error {
 
 	log.Info("Starting MEV bot...")
 
-	// Create Arbitrum monitor
-	monitor, err := monitor.NewArbitrumMonitor(cfg.Arbitrum.RPCEndpoint, time.Duration(cfg.Bot.PollingInterval)*time.Second)
+	// Create rate limiter manager
+	rateLimiter := ratelimit.NewLimiterManager(&cfg.Arbitrum)
+
+	// Create market manager
+	marketMgr := market.NewMarketManager(&cfg.Uniswap, log)
+
+	// Create market scanner
+	scanner := scanner.NewMarketScanner(&cfg.Bot, log)
+
+	// Create Arbitrum monitor with concurrency support
+	monitor, err := monitor.NewArbitrumMonitor(
+		&cfg.Arbitrum,
+		&cfg.Bot,
+		log,
+		rateLimiter,
+		marketMgr,
+		scanner,
+	)
 	if err != nil {
 		return fmt.Errorf("failed to create Arbitrum monitor: %w", err)
 	}
@@ -89,6 +107,9 @@ func startBot() error {
 	// Stop the monitor
 	monitor.Stop()
 
+	// Stop the scanner
+	scanner.Stop()
+
 	log.Info("MEV bot stopped.")
 	return nil
 }