// +build !appengine

package goji

import (
	"crypto/tls"
	"flag"
	"log"
	"net"
	"net/http"
	"time"

	"github.com/zenazn/goji/bind"
	"github.com/zenazn/goji/graceful"
)

func init() {
	bind.WithFlag()
	if fl := log.Flags(); fl&log.Ltime != 0 {
		log.SetFlags(fl | log.Lmicroseconds)
	}
	graceful.DoubleKickWindow(2 * time.Second)
}

// Serve starts Goji using reasonable defaults.
func Serve() {
	if !flag.Parsed() {
		flag.Parse()
	}

	ServeListener(bind.Default())
}

// Like Serve, but enables TLS using the given config.
func ServeTLS(config *tls.Config) {
	if !flag.Parsed() {
		flag.Parse()
	}

	ServeListener(tls.NewListener(bind.Default(), config))
}

// Like Serve, but runs Goji on top of an arbitrary net.Listener.
func ServeListener(listener net.Listener) {
	DefaultMux.Compile()
	// Install our handler at the root of the standard net/http default mux.
	// This allows packages like expvar to continue working as expected.
	http.Handle("/", DefaultMux)

	log.Println("Starting Goji on", listener.Addr())

	graceful.HandleSignals()
	bind.Ready()
	graceful.PreHook(func() { log.Printf("Goji received signal, gracefully stopping") })
	graceful.PostHook(func() { log.Printf("Goji stopped") })

	err := graceful.Serve(listener, http.DefaultServeMux)

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

	graceful.Wait()
}