package main

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

var PublishedImgDir string
var NextImgDir string
var ThumbsDir string

func main() {
	bind := flag.String("bind", "0.0.0.0:8080", "Bind port/socket")
	htpasswd_file := flag.String("htpasswd", "", "Admin passwords file, Apache htpasswd format")
	flag.StringVar(&PublishedImgDir, "publishedimgdir", "./images/published/", "Directory where save published pictures")
	flag.StringVar(&NextImgDir, "nextimgdir", "./images/next/", "Directory where save pictures to review")
	flag.StringVar(&ThumbsDir, "thumbsdir", "./images/thumbs/", "Directory where generate thumbs")
	flag.Parse()

	htpasswd := &Htpasswd{}

	if htpasswd_file != nil && *htpasswd_file != "" {
		log.Println("Reading htpasswd file...")
		var err error
		if htpasswd, err = NewHtpasswd(*htpasswd_file); htpasswd == nil {
			log.Fatal("Unable to parse htpasswd:", err)
		}
	}

	log.Println("Checking paths...")
	if _, err := os.Stat(PublishedImgDir); os.IsNotExist(err) {
		log.Fatal(err)
	}
	if _, err := os.Stat(NextImgDir); os.IsNotExist(err) {
		log.Fatal(err)
	}
	if _, err := os.Stat(ThumbsDir); os.IsNotExist(err) {
		log.Fatal(err)
	}

	log.Println("Registering handlers...")
	authFunc := func (r *http.Request) (*User){ return Authenticate(*htpasswd, r) }

	mux := http.NewServeMux()
	mux.Handle("/api/", http.StripPrefix("/api", ApiHandler(authFunc)))
	mux.Handle("/", http.FileServer(http.Dir("./static/")))

	log.Println("Ready, listening on", *bind)
	if err := http.ListenAndServe(*bind, mux); err != nil {
		log.Fatal("Unable to listen and serve: ", err)
	}
}