package main

import (
	"net/http"
	"fmt"
	"text/template"

	"github.com/kreativmonkey/shrt/short"
	"log"
)

type Page struct {
	Host string
	Title string
	Body string
}

var (
	short *shrt.Storage
)

func init() {
	var err error
	short, err = shrt.Open()
	if err != nil {
		panic(err)
	}
}

func index(w http.ResponseWriter, r *http.Request) {
	switch r.Method {
	case "GET":
		if redirect, ok := short.Get(r.URL.Path[1:]); ok{
			http.Redirect(w, r, string(redirect), 301)
			fmt.Printf("Token: %s Redirect to: %s \n", string(r.URL.Path[1:]), redirect)
		} else {
			t, _ := template.ParseFiles("template/index.gohtml")
			t.Execute(w, Page{Title: "Shrt"})
		}
	case "POST":
		var test string
		token, err := short.Add(r.FormValue("url"), &test)
		if err != nil {
			panic(err)
		}
		P := Page{Title: "Url:", Body: r.Host + "/" + token}
		t, _ := template.ParseFiles("template/index.gohtml")
		t.Execute(w, P)
	}

}

func all(w http.ResponseWriter, r *http.Request) {
	t, _ := template.New("all").Parse("{{.}}")
	t.Execute(w, short.All())
}

func main() {
	http.HandleFunc("/", index) // setting router rule
	http.HandleFunc("/all", all) // setting router rule
	http.HandleFunc("/put", index) // setting router rule
	err := http.ListenAndServe(":9090", nil) // setting listening port
	if err != nil {
		log.Fatal("ListenAndServe: ", err)
	}
}