package main

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

type App struct {
	Store
}

func logMux(handler http.Handler) http.Handler {
	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		t := time.Now()
		handler.ServeHTTP(w, r)
		log.Println(r.Method, r.URL.Path, time.Since(t))
	})
}

func (app *App) rootHandler(w http.ResponseWriter, r *http.Request) {
	c, err := r.Cookie("id")
	//log.Println(r.Header.Get("X-Original-URI"))
	//log.Println(r.Host)
	if err != nil {
		w.WriteHeader(http.StatusUnauthorized)
	} else {
		if s, ok := app.Get(c.Value); ok {
			w.Header().Set("X-Remote-User", s.UserId)
			w.WriteHeader(http.StatusOK)
		} else {
			log.Println("Session does not exist:", c.Value)
			w.WriteHeader(http.StatusForbidden)
		}
	}
}

func (app *App) loginHandler(w http.ResponseWriter, r *http.Request) {
	if r.Method == http.MethodPost {
		if err := r.ParseForm(); err != nil {
			panic(err)
		} else {
			username := r.Form.Get("username")
			password := r.Form.Get("password")
			row := app.Query("SELECT id FROM users WHERE user_name = ?", username)
			var id int64
			if err := row.rowScan(&id); err != nil {
				panic(err)
			}
		}
	}
}

func main() {
	//log.SetFlags(log.LstdFlags)
	store := NewPgStore()
	app := &App{store}
	http.HandleFunc("/", app.rootHandler)
	if err := http.ListenAndServe(":8080", logMux(http.DefaultServeMux)); err != nil {
		panic(err)
	}
}