package main

import (
	"context"
	"log"
	"net/http"
	"time"
)

func main() {
	fs := http.FileServer(http.Dir("."))
	
	// Wrap to add no-cache headers
	handler := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		w.Header().Set("Cache-Control", "no-cache, no-store, must-revalidate")
		w.Header().Set("Pragma", "no-cache")
		w.Header().Set("Expires", "0")
		fs.ServeHTTP(w, r)
	})
	
	// Auto-shutdown after 60 minutes
	ctx, cancel := context.WithTimeout(context.Background(), 60*time.Minute)
	defer cancel()
	
	server := &http.Server{
		Addr:    "0.0.0.0:8888",
		Handler: handler,
	}
	
	log.Println("Serving on http://192.168.1.16:8888")
	log.Println("Auto-shutdown in 60 minutes")
	
	// Run server in goroutine
	go func() {
		if err := server.ListenAndServe(); err != nil && err != http.ErrServerClosed {
			log.Fatalf("Server error: %v", err)
		}
	}()
	
	// Wait for shutdown signal
	<-ctx.Done()
	log.Println("Shutting down...")
	
	shutdownCtx, shutdownCancel := context.WithTimeout(context.Background(), 5*time.Second)
	defer shutdownCancel()
	
	if err := server.Shutdown(shutdownCtx); err != nil {
		log.Printf("Shutdown error: %v", err)
	}
	log.Println("Server stopped")
}