small fix, don't worry about it

backend/utils/graceful_shutdown.go

@@ -0,0 +1,59 @@
+package utils
+
+import (
+	"context"
+	"log"
+	"net/http"
+	"os"
+	"os/signal"
+	"syscall"
+	"time"
+)
+
+// GracefulShutdown handles graceful shutdown of the server
+type GracefulShutdown struct {
+	server          *http.Server
+	shutdownTimeout time.Duration
+	cleanupFuncs    []func() error
+}
+
+// NewGracefulShutdown creates a new graceful shutdown handler
+func NewGracefulShutdown(server *http.Server, timeout time.Duration) *GracefulShutdown {
+	return &GracefulShutdown{
+		server:          server,
+		shutdownTimeout: timeout,
+		cleanupFuncs:    make([]func() error, 0),
+	}
+}
+
+// AddCleanupFunc adds a cleanup function to be called during shutdown
+func (gs *GracefulShutdown) AddCleanupFunc(fn func() error) {
+	gs.cleanupFuncs = append(gs.cleanupFuncs, fn)
+}
+
+// Wait waits for shutdown signal and performs graceful shutdown
+func (gs *GracefulShutdown) Wait() {
+	quit := make(chan os.Signal, 1)
+	signal.Notify(quit, syscall.SIGINT, syscall.SIGTERM)
+	<-quit
+
+	log.Println("Shutting down server...")
+
+	// Run cleanup functions
+	for i, fn := range gs.cleanupFuncs {
+		if err := fn(); err != nil {
+			log.Printf("Cleanup function %d failed: %v", i, err)
+		}
+	}
+
+	// Create shutdown context with timeout
+	ctx, cancel := context.WithTimeout(context.Background(), gs.shutdownTimeout)
+	defer cancel()
+
+	// Attempt graceful shutdown
+	if err := gs.server.Shutdown(ctx); err != nil {
+		log.Printf("Server forced to shutdown: %v", err)
+	} else {
+		log.Println("Server shutdown complete")
+	}
+}