package main

import (
	"context"
	"log"
	"os"
	"os/signal"
	"syscall"
	"time"
)

func main() {
	s := NewServer(8080)

	serverCtx, serverStopCtx := context.WithCancel(context.Background())
	sig := make(chan os.Signal, 1)
	signal.Notify(sig, syscall.SIGHUP, syscall.SIGINT, syscall.SIGTERM, syscall.SIGQUIT)
	go func() {
		<-sig

		shutdownCtx, _ := context.WithTimeout(serverCtx, 30*time.Second)

		go func() {
			<-shutdownCtx.Done()
			if shutdownCtx.Err() == context.DeadlineExceeded {
				log.Println("Shutdown timeout, force exit")
			}
		}()

		err := s.Shutdown(shutdownCtx)
		if err != nil {
			log.Fatal(err)
		}
		serverStopCtx()
	}()

	err := s.Run()
	if err != nil {
		log.Fatal(err)
	}

	<-serverCtx.Done()
}