package main

import (
	"context"
	"fmt"
	"log"
	"net/http"
	"os"
	"os/signal"
	"syscall"
	"time"
)

func init() {
	fmt.Println("ZPROX started")
}
func handler1(w http.ResponseWriter, r *http.Request) {
	if r.Host == "test.diukman.com" {
		w.Write([]byte("H1"))
	}
}

func main() {
	router := http.NewServeMux()
	router.Handle("/", http.HandlerFunc(handler1))

	srv := &http.Server{
		Addr:    ":8080",
		Handler: router,
	}

	go func() {
		if err := srv.ListenAndServe(); err != nil && err != http.ErrServerClosed {
			log.Fatalf("Failed to initialize server: %v\n", err)
		}
	}()

	log.Printf("Listening on port %v\n", srv.Addr)

	// Wait for kill signal of channel
	quit := make(chan os.Signal, 1)

	signal.Notify(quit, syscall.SIGINT, syscall.SIGTERM)

	// This blocks until a signal is passed into the quit channel
	<-quit

	// The context is used to inform the server it has 5 seconds to finish
	// the request it is currently handling
	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
	defer cancel()

	// Shutdown server
	log.Println("Shutting down server...")
	if err := srv.Shutdown(ctx); err != nil {
		log.Fatalf("Server forced to shutdown: %v\n", err)
	}
}