package main

import (
	"flag"
	"log"
	"net"
	"net/http"
	"os"
	"time"

	"forgejo.gwairfelin.com/max/gonotes/internal/conf"
	"forgejo.gwairfelin.com/max/gonotes/internal/middleware"
	"forgejo.gwairfelin.com/max/gonotes/internal/notes/views"
)

func main() {
	var confFile string

	sessions := middleware.NewSessionStore()

	flag.StringVar(&confFile, "c", "/etc/gonotes/conf.toml", "Specify path to config file.")
	flag.Parse()

	conf.LoadConfig(confFile)

	log.SetOutput(os.Stdout)

	router := http.NewServeMux()
	notesRouter := views.GetRoutes("/notes")

	cacheExpiration, err := time.ParseDuration("24h")
	if err != nil {
		log.Fatal(err)
	}

	etag := middleware.NewETag("static", cacheExpiration)

	if !conf.Conf.Production {
		router.HandleFunc("/login/", func(w http.ResponseWriter, r *http.Request) {
			user := r.FormValue("user")
			if len(user) == 0 {
				user = "anon"
			}
			sessions.Login(user, w)

			http.Redirect(w, r, "/notes/", http.StatusFound)
		})
	}
	router.Handle("/logout/", sessions.AsMiddleware(
		http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
			user := r.FormValue("user")
			if len(user) == 0 {
				user = "anon"
			}

			sessions.Logout(w, r)

			http.Redirect(w, r, "/notes/", http.StatusFound)
		})))

	router.Handle("/", middleware.LoggingMiddleware(http.RedirectHandler("/notes/", http.StatusFound)))
	router.Handle("/notes/", sessions.AsMiddleware(middleware.LoggingMiddleware(http.StripPrefix("/notes", notesRouter))))
	router.Handle(
		"/static/",
		middleware.LoggingMiddleware(
			middleware.StaticEtagMiddleware(
				*etag,
				http.FileServer(http.FS(conf.Static)),
			),
		),
	)

	listener, err := net.Listen(conf.Conf.Protocol, conf.Conf.Address)
	if err != nil {
		log.Fatal(err)
	}
	log.Fatal(http.Serve(listener, router))
}