Add additional project structure, config, Docker support, and more prompt files

cmd/mev-bot/main.go

@@ -1,11 +1,18 @@
 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/pkg/monitor"
 )
 
 func main() {
@@ -17,9 +24,7 @@ func main() {
 				Name:  "start",
 				Usage: "Start the MEV bot",
 				Action: func(c *cli.Context) error {
-					fmt.Println("Starting MEV bot...")
-					// TODO: Implement bot start logic
-					return nil
+					return startBot()
 				},
 			},
 			{
@@ -37,4 +42,53 @@ func main() {
 	if err := app.Run(os.Args); err != nil {
 		log.Fatal(err)
 	}
+}
+
+func startBot() error {
+	// Load configuration
+	cfg, err := config.Load("config/config.yaml")
+	if err != nil {
+		return fmt.Errorf("failed to load config: %w", err)
+	}
+
+	// Initialize logger
+	log := logger.New(cfg.Log.Level, cfg.Log.Format, cfg.Log.File)
+
+	log.Info("Starting MEV bot...")
+
+	// Create Arbitrum monitor
+	monitor, err := monitor.NewArbitrumMonitor(cfg.Arbitrum.RPCEndpoint, time.Duration(cfg.Bot.PollingInterval)*time.Second)
+	if err != nil {
+		return fmt.Errorf("failed to create Arbitrum monitor: %w", err)
+	}
+
+	// Set up context with cancellation
+	ctx, cancel := context.WithCancel(context.Background())
+	defer cancel()
+
+	// Set up signal handling for graceful shutdown
+	sigChan := make(chan os.Signal, 1)
+	signal.Notify(sigChan, syscall.SIGINT, syscall.SIGTERM)
+
+	// Start monitoring in a goroutine
+	go func() {
+		if err := monitor.Start(ctx); err != nil {
+			log.Error("Monitor error: ", err)
+		}
+	}()
+
+	log.Info("MEV bot started. Press Ctrl+C to stop.")
+
+	// Wait for signal
+	<-sigChan
+	log.Info("Received shutdown signal...")
+
+	// Cancel context to stop monitor
+	cancel()
+
+	// Stop the monitor
+	monitor.Stop()
+
+	log.Info("MEV bot stopped.")
+	return nil
 }